JP2000198401A - Reinforcing member for vehicle bumper - Google Patents
Reinforcing member for vehicle bumperInfo
- Publication number
- JP2000198401A JP2000198401A JP11003935A JP393599A JP2000198401A JP 2000198401 A JP2000198401 A JP 2000198401A JP 11003935 A JP11003935 A JP 11003935A JP 393599 A JP393599 A JP 393599A JP 2000198401 A JP2000198401 A JP 2000198401A
- Authority
- JP
- Japan
- Prior art keywords
- bumper
- vehicle
- roll
- press
- forming member
- 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
Landscapes
- Body Structure For Vehicles (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、車両のフロント
バンパーまたはリヤバンパーを補強するような車両バン
パーの補強部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle bumper reinforcing member for reinforcing a front bumper or a rear bumper of a vehicle.
【０００２】[0002]
【従来の技術】従来、車両バンパーの補強部材として
は、例えば特開平６−３２１０３３号公報に記載のもの
がある。2. Description of the Related Art Conventionally, as a reinforcing member for a vehicle bumper, for example, there is a member described in Japanese Patent Application Laid-Open No. Hei 6-32033.
【０００３】すなわち、図１５にその一部分を示すよう
に弓字形またはＷ字形にロールフォーミングされた中間
部材９１と、鋼製平板からなる天板９２および地板９３
とを設け、これら三者を溶接固定した車両バンパーの補
強部材である。[0003] More specifically, as shown in FIG. 15, an intermediate member 91 roll-formed into an arcuate or W-shape, a top plate 92 and a base plate 93 made of a steel flat plate.
And a reinforcement member for a vehicle bumper in which these three members are welded and fixed.
【０００４】この従来の車両バンパーの補強部材によれ
ば、上述の中間部材９１をロール成形にて形成するの
で、補強部材をプレス成形部材で構成するものに対して
金型の製作が不要な分、安価に構成することができる利
点を有する反面、次のような問題点があった。According to this conventional reinforcing member for a vehicle bumper, since the above-mentioned intermediate member 91 is formed by roll forming, there is no need to manufacture a mold as compared with the case where the reinforcing member is formed by a press-formed member. Although it has the advantage that it can be constructed at low cost, it has the following problems.
【０００５】つまり、車両のバンパーは車両デザインの
関係上、その車幅方向中央部が車幅方向側方部に対して
膨出（フロントバンパーの場合は前方に膨出、リヤバン
パーの場合は後方に膨出）しており、特に車幅方向の左
右両側部分は比較的曲率的半径が小さいアール状に形成
されるが、ロール成形では所定曲率半径より小さいアー
ル形状のフォーミングが困難で、しかも、ロール成形部
材の曲率を部材途中で変更することができず、曲率をつ
けたとしても、部材長手方向に対する一定の曲率形状が
得られるに過ぎない。That is, due to the design of the vehicle, the central portion of the vehicle bumper in the vehicle width direction bulges out to the side portion in the vehicle width direction (the front bumper bulges forward, and the rear bumper bulges rearward). In particular, the left and right sides in the vehicle width direction are formed in a round shape having a relatively small radius of curvature. However, it is difficult to form a round shape smaller than a predetermined radius of curvature by roll forming. The curvature of the molded member cannot be changed in the middle of the member, and even if the curvature is provided, only a constant curvature shape in the longitudinal direction of the member can be obtained.
【０００６】このため車両バンパーの補強部材は図１５
に示すように一定断面となり、車両のデザイン要求に対
応することができない問題点があった。For this reason, the reinforcing member of the vehicle bumper is shown in FIG.
As shown in the figure, there is a problem that the cross section becomes constant and it is not possible to meet the design requirements of the vehicle.
【０００７】[0007]
【発明が解決しようとする課題】この発明の請求項１記
載の発明は、弓字形一定断面のロール成形部材と、この
ロール成形部材に対応して外部（フロントバンパーの場
合には前部、リヤバンパーの場合には後部）が膨出する
逆弓字形を有し、車幅方向中央部が車幅方向側方部に対
して膨出したプレス成形部材とを設け、ロール成形部材
とプレス成形部材との上下両端に相対向する接合フラン
ジを形成し、ロール成形部材とプレス成形部材の中央部
および上下両端の接合フランジを接合することで、コス
トダウンと車両デザイン要求への対応性向上との両立を
図ることができる車両バンパーの補強部材の提供を目的
とする。According to the first aspect of the present invention, there is provided a roll-formed member having an arc-shaped fixed cross section, and an external portion (a front portion in the case of a front bumper, a rear bumper) corresponding to the roll-formed member. In the case of, the rear part) has an inverted arcuate shape that bulges out, and a press-formed member whose center part in the vehicle width direction bulges out to the side part in the vehicle width direction is provided, and a roll-formed member and a press-formed member are provided. Opposite joint flanges are formed at the upper and lower ends of the roll, and the joint flanges at the center and upper and lower ends of the roll-formed member and press-formed member are joined to achieve both cost reduction and improved responsiveness to vehicle design requirements. It is an object of the present invention to provide a reinforcement member for a vehicle bumper that can be achieved.
【０００８】この発明の請求項２記載の発明は、上記請
求項１記載の発明の目的と併せて、上述のロール成形部
材とプレス成形部材の中央部をスポット溶接し、上下両
端の接合フランジをアーク溶接することで、中央部にあ
ってはスポット溶接により溶接性の向上を図り、上下両
端の接合フランジの溶接には、スポット溶接用のガンを
配設するスペースを考慮する必要がなく、アーク溶接に
て接合するので、制限された所定高さ内において両部材
間に良好かつ大きい閉断面を確保することができ、しか
もロール成形部材のバックリング（反曲）に対応して両
部材間に若干の位置ずれがあったとしても良好にアーク
溶接を施すことができる車両バンパーの補強部材の提供
を目的とする。According to a second aspect of the present invention, in addition to the object of the first aspect, the central portions of the roll forming member and the press forming member are spot-welded, and the joining flanges at both upper and lower ends are formed. By arc welding, the weldability is improved by spot welding at the center, and it is not necessary to consider the space for installing the gun for spot welding when welding the joint flanges at the upper and lower ends. Since welding is used, a good and large closed cross section can be secured between the two members within a limited predetermined height, and between the two members corresponding to the buckling (reflexion) of the roll-formed member. An object of the present invention is to provide a reinforcing member for a vehicle bumper that can perform arc welding satisfactorily even if there is a slight displacement.
【０００９】この発明の請求項３記載の発明は、上記請
求項１記載の発明の目的と併せて、上述のプレス成形部
材の板厚をロール成形部材の板厚に対して薄く設定する
ことで、ロール成形部材の板厚により充分な剛性を確保
しつつ、プレス成形部材の板厚により軽量化を図ること
ができる車両バンパーの補強部材の提供を目的とする。According to a third aspect of the present invention, in addition to the object of the first aspect, the thickness of the press-formed member is set smaller than the thickness of the roll-formed member. It is another object of the present invention to provide a reinforcing member for a vehicle bumper which can reduce the weight by the thickness of the press-formed member while securing sufficient rigidity by the thickness of the roll-formed member.
【００１０】[0010]
【課題を解決するための手段】この発明の請求項１記載
の発明は、車両バンパーの補強部材であって、バンパー
の前後方向断面が一定の弓字形のロール成形部材の外側
に、該ロール成形部材に対応して外部が膨出する逆弓字
形を有し車幅方向中央部が車幅方向側方部に対して膨出
したプレス成形部材を接合し、上記ロール成形部材とプ
レス成形部材の上下両端に相対向する接合フランジを設
け、上記ロール成形部材とプレス成形部材の中央部およ
び上下両端の接合フランジが接合された車両バンパーの
補強部材であることを特徴とする。According to a first aspect of the present invention, there is provided a reinforcing member for a vehicle bumper, wherein the reinforcing member is formed on an outer side of an arc-shaped roll forming member having a constant cross section in the front-rear direction of the bumper. A press formed member having an inverted arcuate shape in which the outside swells corresponding to the member and having a vehicle width direction center portion swelled with respect to the vehicle width direction side portion is joined, and the roll formed member and the press formed member are joined together. Opposite joining flanges are provided at both upper and lower ends, and the reinforcing member is a vehicle bumper in which the joining flanges at the center and upper and lower ends of the roll-formed member and the press-formed member are joined.
【００１１】この発明の請求項２記載の発明は、上記請
求項１記載の発明の構成と併せて、上記ロール成形部材
とプレス成形部材の中央部がスポット溶接され、上下両
端の接合フランジがアーク溶接された車両バンパーの補
強部材であることを特徴とする。According to a second aspect of the present invention, in addition to the configuration of the first aspect, the central portions of the roll-formed member and the press-formed member are spot-welded, and the joining flanges at the upper and lower ends are arced. It is a reinforcing member for a welded vehicle bumper.
【００１２】この発明の請求項３記載の発明は、上記請
求項１記載の発明の構成と併せて、上記プレス成形部材
の板厚がロール成形部材の板厚に対して薄く設定された
車両バンパーの補強部材であることを特徴とする。According to a third aspect of the present invention, in addition to the configuration of the first aspect, a vehicle bumper wherein the thickness of the press-formed member is set smaller than the thickness of the roll-formed member. Characterized in that it is a reinforcing member.
【００１３】[0013]
【発明の作用及び効果】この発明の請求項１記載の発明
によれば、弓字形一定断面のロール成形部材と、このロ
ール成形部材に対応して外部（フロントバンパーの場合
には前部、リヤバンパーの場合には後部）が膨出する逆
弓字形を有し、車幅方向中央部が車幅方向側方部に対し
て膨出したプレス成形部材とを設け、ロール成形部材と
プレス成形部材との上下両端に相対向する接合フランジ
を形成し、ロール成形部材とプレス成形部材との中央部
および上下両端の接合フランジを接合したので、ロール
成形部材によりコストダウンを図ることができると共
に、プレス成形部材によりデザイン形状に容易に対応す
ることができる効果がある。According to the first aspect of the present invention, a roll-formed member having a constant arcuate cross section and an external portion (a front portion in the case of a front bumper, a rear bumper) corresponding to the roll-formed member. In the case of, the rear part) has an inverted arcuate shape that bulges out, and a press-formed member whose center part in the vehicle width direction bulges out to the side part in the vehicle width direction is provided, and a roll-formed member and a press-formed member are provided. Opposing joint flanges are formed at the upper and lower ends of the roll-formed member, and the central portions of the roll-formed member and the press-formed member and the joint flanges at the upper and lower ends are joined. There is an effect that the member can easily correspond to the design shape.
【００１４】すなわち、コストダウンと車両デザイン要
求への対応性向上との両立を図ることができる効果があ
る。That is, there is an effect that both cost reduction and improvement of responsiveness to vehicle design requirements can be achieved.
【００１５】この発明の請求項２記載の発明によれば、
上記請求項１記載の発明の効果と併せて、上述のロール
成形部材とプレス成形部材の中央部をスポット溶接し、
上下両端の接合フランジをアーク溶接するので、中央部
にあってはスポット溶接により溶接性の向上を図ること
ができる。According to the invention described in claim 2 of the present invention,
In addition to the effect of the first aspect of the present invention, the center of the roll-formed member and the press-formed member is spot-welded,
Since the joining flanges at the upper and lower ends are arc-welded, the weldability can be improved by spot welding at the center.
【００１６】また上下両端の複合フランジの溶接には、
スポット溶接用のガンを配設するスペースを考慮する必
要がなく、アーク溶接にて接合するので、限られた所定
高さ内において両部材間に良好かつ大きい閉断面を確保
することができる効果がある。For welding the composite flanges at the upper and lower ends,
There is no need to consider the space for disposing the gun for spot welding, and joining is performed by arc welding, so that an effect that a good and large closed cross section can be secured between both members within a limited predetermined height. is there.
【００１７】しかも、ロール成形部材のバックリング
（反曲）に対応して両部材間に若干の位置ずれがあった
としても接合フランジを良好にアーク溶接することがで
き、所謂部材の口開きの影響を受けにくい効果がある。Furthermore, even if there is a slight displacement between the two members in response to the buckling (rebound) of the roll-formed member, the joining flange can be satisfactorily arc-welded, and the so-called opening of the member can be reduced. There is an effect that is hardly affected.
【００１８】この発明の請求項３記載の発明によれば、
上記請求項１記載の発明の効果と併せて、上述のプレス
成形部材の板厚をロール成形部材の板厚に対して薄く設
定したので、ロール成形部材の板厚により充分な剛性
（衝突エネルギ吸収を満足すべき基本的強度）を確保し
つつ、プレス成形部材の板厚により軽量化を達成するこ
とができる効果がある。According to the third aspect of the present invention,
In addition to the effect of the first aspect of the present invention, the thickness of the above-mentioned press-formed member is set to be smaller than the thickness of the roll-formed member. This has the effect that the weight can be reduced by the thickness of the press-formed member while ensuring the basic strength that satisfies the above conditions.
【００１９】[0019]
【実施例】この発明の一実施例を以下図面に基づいて詳
述する。図面は車両バンパーの補強部材を示し、図１乃
至図８においてフロントバンパー１の前後方向の断面が
一定の弓字形のロール成形部材２を設け、このロール成
形部材２に対応して前部が膨出する逆弓字形のプレス成
形部材３を設け、ロール成形部材２の前側にプレス成形
部材３を接合して、バンパーレインフォースメントを構
成している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show a reinforcing member of a vehicle bumper. In FIGS. 1 to 8, an arc-shaped roll forming member 2 having a constant front-rear cross section of a front bumper 1 is provided, and a front portion bulges in correspondence with the roll forming member 2. The press-formed member 3 having an inverted arc shape is provided, and the press-formed member 3 is joined to the front side of the roll formed member 2 to form a bumper reinforcement.
【００２０】なお、図１、図２においては図示の便宜
上、フロントバンパー１の車幅方向の中央部から車幅方
向の一端部までの構造を示すが、他端側の構造は図示構
造に対して左右対象に構成される。FIGS. 1 and 2 show the structure of the front bumper 1 from the center in the vehicle width direction to one end in the vehicle width direction for the convenience of illustration. It is composed of left and right objects.
【００２１】上述のロール成形部材２は板厚約１．６mm
の高張力鋼板ＳＰＣＮ(張力約１００kgf／cm２)を用い
てロールフォーミングされたバンパインフォースメント
であって、このロール成形部材２は図３〜図８に示す如
く上下方向に指向する中央部４と、この中央部４の上下
に一体形成され、かつ後方へ突出する上側突出部５およ
び下側突出部６と、上側突出部５から上方に延びて中央
部４の前面と面一状と成る上部接合フランジ７と、下側
突出部６から下方に延びて中央部４の前面と面一状と成
る下部接合フランジ８とを備え、全体として弓字形の一
定断面を有するものである。The above-mentioned roll forming member 2 has a thickness of about 1.6 mm.
Is a bumper reinforcement roll-formed using a high-tensile steel plate SPCN (tensile force of about 100 kgf / cm 2 ). An upper protruding portion 5 and a lower protruding portion 6 integrally formed above and below the central portion 4 and protruding rearward, and an upper portion extending upward from the upper protruding portion 5 and flush with the front surface of the central portion 4. It has a joint flange 7 and a lower joint flange 8 which extends downward from the lower protruding portion 6 and is flush with the front surface of the central portion 4 and has a constant bow-shaped cross section as a whole.
【００２２】一方、上述のプレス成形部材３は板厚約
１．４mmの高張力鋼板ＳＰＣＮ(張力約６０kgf／cm２)
を用いてプレス成形加工されたバンパインフォースメン
トであって、このプレス成形部材３は図３〜図８に示す
如く上下方向に指向する中央部９と、この中央部９の上
下に一体形成され、かつ前方へ突出する上側突出部１０
および下側突出部１１と、上側突出部１０から上方に延
びて中央部９の背面と面一状と成る上部接合フランジ１
２と、下側突出部１１から下方に伸びて中央部９の背面
と面一状と成る下部接合フランジ１３とを備え、全体と
して逆弓字形の断面を有するものである。On the other hand, the above-mentioned press-formed member 3 is a high-tensile steel plate SPCN having a thickness of about 1.4 mm (tensile: about 60 kgf / cm 2 ).
This press-formed member 3 is formed integrally with a central portion 9 which is vertically oriented as shown in FIGS. 3 to 8, and above and below the central portion 9, And an upper protruding portion 10 protruding forward.
And an upper joining flange 1 extending upward from the upper projecting portion 10 and flush with the back surface of the central portion 9.
2 and a lower joining flange 13 extending downward from the lower protruding portion 11 and flush with the back surface of the central portion 9 and has an inverted arcuate cross section as a whole.
【００２３】しかも、このプレス成形部材３は図１の平
面図から明らかなように車幅方向中央部３ａが車幅方向
側方部３ｂに対してフロント側へ膨出すべく構成されて
いる。特に、車幅方向側方部３ｂはデザイン要求に対応
して比較的小さい曲率半径で後方へ向けてアール状に屈
曲形成されている。Further, as is apparent from the plan view of FIG. 1, the press-formed member 3 is configured such that the central portion 3a in the vehicle width direction swells toward the front side with respect to the lateral portion 3b in the vehicle width direction. In particular, the side portion 3b in the vehicle width direction is formed to be bent rearward with a relatively small radius of curvature in response to design requirements.
【００２４】上述のロール成形部材２の中央部４と、プ
レス成形部材３の中央部９とを対接させて、これら両中
央部４，９をスポット溶接する一方、上述のロール成形
部材２の上下両端の接合フランジ７，８と、プレス成形
部材３の上下両端の接合フランジ１２，１３とを相対向
させて、上側の各接合フランジ７，１２をアーク溶接す
ると共に、下側の各接合フランジ８，１３をアーク溶接
して、両部材２，３間に車幅方向に延びる２つの閉断面
１４，１５を離間形成している。The center part 4 of the roll forming member 2 and the center part 9 of the press forming member 3 are brought into contact with each other, and the center parts 4 and 9 are spot-welded. The upper and lower joining flanges 7, 8 are opposed to the upper and lower joining flanges 12, 13 of the press-formed member 3, and the upper joining flanges 7, 12 are arc-welded, and the lower joining flanges are respectively. 8, 13 are arc-welded to form two closed sections 14, 15 extending in the vehicle width direction between the members 2, 3.
【００２５】ここで、ロール成形部材２側の接合フラン
ジ７，８の上下方向への突出量を、プレス成形部材３側
の接合フランジ１２，１３の上下方向への突出量に対し
て小さく設定し、接合フランジ７，１２および接合フラ
ンジ８，１３を当接した時、その当接形状を段差状と成
して、この段差部をアーク溶接の肉盛り空間として有効
利用すべく構成している。Here, the projecting amount of the joining flanges 7 and 8 on the roll forming member 2 in the vertical direction is set smaller than the projecting amount of the joining flanges 12 and 13 on the press forming member 3 in the vertical direction. When the joining flanges 7 and 12 and the joining flanges 8 and 13 are brought into contact with each other, the contact shape is formed as a stepped portion, and the stepped portion is configured to be effectively used as a build-up space for arc welding.
【００２６】なお、上述のスポット溶接およびアーク溶
接は両部材２，３の長手方向つまり車幅方向において所
定等間隔毎に部分的に実行されるが、上述アーク溶接は
間隔を隔てることなく連続して実行してもよい。The above-mentioned spot welding and arc welding are partially performed at predetermined regular intervals in the longitudinal direction of the two members 2 and 3, that is, in the vehicle width direction. However, the above-described arc welding is continuously performed without any interval. May be executed.
【００２７】ところで、上述のプレス成形部材３の前側
には発泡スチロール等により形成された衝突エネルギ吸
収部材１６を介してバンパフェース１７を配設するが、
このバンパフェース１７は該バンパフェース１７の上下
の基端部に一体形成された取付け片１８〜２２(図３〜
図８参照)を、ボルト２３およびナット２４を用いてロ
ール成形部材２側に取付けるものである。上述の各ナッ
ト２４は突出部５，６またはロール成形部材２に一体的
に取付けられた支持ブラケット２５(図８参照)に対して
予め溶接固定されたものであり、図１に示す２６はボル
ト２３を挿通させるためのボルト挿通孔である。A bumper face 17 is provided on the front side of the above-mentioned press-formed member 3 via a collision energy absorbing member 16 formed of styrene foam or the like.
The bumper face 17 is provided with mounting pieces 18 to 22 (FIGS. 3 to 4) integrally formed on upper and lower base ends of the bumper face 17.
8) is attached to the roll forming member 2 using bolts 23 and nuts 24. Each of the nuts 24 is previously welded and fixed to a support bracket 25 (see FIG. 8) integrally attached to the protruding portions 5, 6 or the roll forming member 2, and 26 shown in FIG. 23 is a bolt insertion hole for inserting the bolt 23.
【００２８】このように構成されたフロントバンパー１
は図１、図２に示す如くバンパブラケット２７を介して
車体フレーム２８に取付けられる。上述のバンパブラケ
ット２７には図２、図７に示す如く、その中央部上下に
溶接用の孔部２９，２９が離間成形され、この孔部２９
を利用してバンパブラケット２７と突出部５，６背面と
をアーク溶接手段にて接合する。The front bumper 1 configured as described above
Is mounted on a vehicle body frame 28 via a bumper bracket 27 as shown in FIGS. As shown in FIGS. 2 and 7, welding holes 29, 29 are formed at the center of the bumper bracket 27 above and below the center of the bumper bracket 27.
, The bumper bracket 27 and the rear surfaces of the protruding portions 5 and 6 are joined by arc welding means.
【００２９】また上述のバンパブラケット２７の車外側
端部には図２、図８に示す如く２つのボルト３０，３０
と１つの位置決めピン３１とを接合し、車内側端部には
図２、図６に示す如く２つのボルト３２，３２を接合す
ると共に、２つのボルト配置孔３３，３３を形成し、こ
のバンパブラケット２７の左右共通化を図っている。As shown in FIGS. 2 and 8, two bolts 30, 30 are provided at the outer end of the bumper bracket 27.
And one positioning pin 31, and two bolts 32, 32 as shown in FIGS. 2 and 6, and two bolt arrangement holes 33, 33 are formed at the inner end of the vehicle. The left and right brackets 27 are shared.
【００３０】而して、上述のバンパブラケット２７は各
ボルト３０，３２に螺合させるナット３４で、車体フレ
ーム２８に取付けられる。The above-mentioned bumper bracket 27 is attached to the vehicle body frame 28 by a nut 34 screwed to each of the bolts 30 and 32.
【００３１】図９〜図１３は平板からロール成形部材２
をロール成形する工程の一例を示し、まず図９に示すよ
うに平板(帯板)をロール間にてロールフォーミングし
て、コ字状部材３５と成す。次に図１０に示す如くコ字
状部材３５の開口側を外方へ略直角に折曲げるようにロ
ールフォーミングして鍔部３６，３６を形成する。FIGS. 9 to 13 show a roll-formed member 2 from a flat plate.
An example of a process of forming a roll into a roll is shown. First, as shown in FIG. 9, a flat plate (strip) is roll-formed between rolls to form a U-shaped member 35. Next, as shown in FIG. 10, the flanges 36, 36 are formed by roll forming so that the opening side of the U-shaped member 35 is bent outward at substantially a right angle.
【００３２】次に図１１に示す如く鍔部３６，３６の先
端をコ字状部材３５の開口方向と平行な方向に折曲げる
ようにロールフォーミングして接合フランジ７，８を形
成する。次に図１２に示す如くコ字状部材３５をその開
口側中途部から外方へ折曲げるようにロールフォーミン
グして、コ字状部材３５の上下に近似突出部３７，３８
を形成する。Next, as shown in FIG. 11, the joining flanges 7, 8 are formed by roll forming so that the tips of the flanges 36, 36 are bent in a direction parallel to the opening direction of the U-shaped member 35. Next, as shown in FIG. 12, the U-shaped member 35 is roll-formed so as to be bent outward from a middle portion on the opening side, and approximate protrusions 37 and 38 are formed above and below the U-shaped member 35.
To form
【００３３】次に図１２に示す近似形状部材３９を最終
段のロール間にてロールフォーミングすると、図１３に
示すような一定断面のロール成形部材２が成形される。
なお、図１で示す実施例ではロール成形部材２の車幅方
向側方部の前面をプレス成形部材３の対応部分の形状に
合わせて一部切削除去しているが、図１４に示すように
ロール成形部材２の車幅方向側方部の前面を何等切削除
去することなく、ロールフォーミングされた形状のまま
で用いるように構成してもよい。Next, when the approximate shape member 39 shown in FIG. 12 is roll-formed between the rolls at the final stage, the roll forming member 2 having a constant cross section as shown in FIG. 13 is formed.
In the embodiment shown in FIG. 1, the front surface of the roll forming member 2 on the side in the vehicle width direction is partially cut and removed according to the shape of the corresponding portion of the press forming member 3, but as shown in FIG. The roll-formed member 2 may be configured to be used in the roll-formed shape without cutting or removing the front surface of the side portion in the vehicle width direction at all.
【００３４】このように上記構成の車両バンパーの補強
部材によれば、弓字形一定断面のロール成形部材２と、
このロール成形部材２に対応して外部(フロントバンパ
ー１の場合には前部、リヤバンパーの場合には後部)が
膨出する逆弓字形を有し、車幅方向中央部３ａが車幅方
向側方部３ｂに対して膨出したプレス成形部材３とを設
け、ロール成形部材２とプレス成形部材３との上下両端
に相対抗する接合フランジ７，８，１２，１３を形成
し、ロール成形部材２とプレス成形部材３との中央部
４，９および上下両端の接合フランジ７，８，１２，１
３を接合したので、ロール成形部材２によりコストダウ
ンを図ることができると共に、プレス成形部材３により
デザイン形状に容易に対応することができる効果があ
る。すなわち、コストダウンと車両デザイン要求への対
応性向上との両立を図ることができる効果がある。As described above, according to the reinforcing member for a vehicle bumper having the above structure, the roll forming member 2 having a bow-shaped fixed cross section is provided.
The outer part (the front part in the case of the front bumper 1 and the rear part in the case of the rear bumper) has an inverted bow shape corresponding to the roll forming member 2, and the central part 3 a in the vehicle width direction is on the vehicle width direction side. A press-formed member 3 swelling with respect to the side portion 3b is provided, and joining flanges 7, 8, 12, and 13 opposed to upper and lower ends of the roll-formed member 2 and the press-formed member 3 are formed. 2 and press-formed member 3 at central portions 4, 9 and joining flanges 7, 8, 12, 1 at upper and lower ends.
3, the cost can be reduced by the roll-formed member 2, and the press-formed member 3 can easily cope with the design shape. In other words, there is an effect that both cost reduction and improvement in responsiveness to vehicle design requirements can be achieved.
【００３５】さらに、上述のロール成形部材２とプレス
成形部材３の中央部４，９をスポット溶接し、上下両端
の接合フランジ７，８，１２，１３をアーク溶接するの
で、中央部４，９にあってはスポット溶接により溶接性
の向上を図ることができる。Further, the center portions 4, 9 of the above-mentioned roll forming member 2 and the press forming member 3 are spot-welded, and the joining flanges 7, 8, 12, 13 at the upper and lower ends are arc-welded. In this case, the weldability can be improved by spot welding.
【００３６】また上下両端の接合フランジ７，８，１
２，１３の溶接には、スポット溶接用のガンを配設する
スペースを考慮する必要がなく、アーク溶接にて接合す
るので、限られた所定高さ内において両部材２，３間に
良好かつ大きい閉断面１４，１５を確保することができ
る効果がある。The joining flanges 7, 8, 1 at the upper and lower ends are also provided.
It is not necessary to consider the space for arranging the gun for spot welding in the welding of the members 2 and 13, and they are joined by arc welding. There is an effect that large closed sections 14 and 15 can be secured.
【００３７】しかも、ロール成形部材２のバックリング
(反曲)に対応して両部材２，３間に若干の位置ずれが生
じたとしても、上下方向に指向する接合フランジ７，
８，１２，１３を当接することで、これら接合フランジ
７，８，１２，１３を良好にアーク溶接することがで
き、所謂部材の口開きの影響を受けにくい効果がある。Moreover, the buckling of the roll forming member 2
Even if there is a slight displacement between the two members 2 and 3 corresponding to the (inflection), the joining flanges 7,
By abutting 8, 12, and 13, these joining flanges 7, 8, 12, and 13 can be satisfactorily arc welded, and there is an effect of being less susceptible to so-called opening of members.
【００３８】加えて、上述のプレス成形部材３の板厚
(例えば約１．４mm)をロール成形部材２の板厚(例えば
約１．６mm)に対して薄く設定したので、ロール成形部
材２の板厚により充分な剛性(衝突エネルギ吸収を満足
すべき基本的強度)を確保しつつ、プレス成形部材３の
板厚により軽量化を達成することができる効果があり、
プレス加工性も向上する。In addition, the thickness of the above-mentioned press-formed member 3
(For example, about 1.4 mm) is set to be thinner than the thickness of the roll forming member 2 (for example, about 1.6 mm). (Strength), while reducing the weight by the thickness of the press-formed member 3.
Press workability is also improved.
【００３９】さらに、上述の補強部材をロール成形部材
２とプレス成形部材３との２部材で構成したので、必要
なエネルギ特性を得るように２部材２，３の板厚を変更
することができる。Further, since the above-mentioned reinforcing member is composed of two members, the roll forming member 2 and the press forming member 3, the thickness of the two members 2 and 3 can be changed so as to obtain necessary energy characteristics. .
【００４０】この発明の構成と、上述の実施例との対応
において、この発明の車両バンパーは、実施例のフロン
トバンパー１に対応するものであるが、この発明は、上
述の実施例の構成のみに限定されるものではない。In correspondence between the configuration of the present invention and the above-described embodiment, the vehicle bumper of the present invention corresponds to the front bumper 1 of the embodiment. However, the present invention is limited to the configuration of the above-described embodiment. It is not limited.
【００４１】つまり、本発明の車両バンパーの補強部材
はフロントバンパー側の構成に限定されるものではな
く、リヤバンパー側の構成に摘要することができるのは
勿論である。また、ロール成形部材２およびプレス成形
部材３の材質、板厚は実施例のものに限定されるもので
はなく、これら２部材２，３の板厚は同厚であってもよ
く、異厚であってもよい。That is, the reinforcing member of the vehicle bumper according to the present invention is not limited to the structure on the front bumper side, but can be added to the structure on the rear bumper side. Further, the material and plate thickness of the roll forming member 2 and the press forming member 3 are not limited to those of the embodiment, and the plate thicknesses of these two members 2 and 3 may be the same or different. There may be.
【図１】 本発明の車両バンパーの補強部材を示す平面
視図。FIG. 1 is a plan view showing a reinforcing member of a vehicle bumper according to the present invention.
【図２】 補強部材の正面図。FIG. 2 is a front view of a reinforcing member.
【図３】 図２のＡ−Ａ線矢視断面図。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】 図２のＢ−Ｂ線矢視断面図。FIG. 4 is a sectional view taken along line BB of FIG. 2;
【図５】 図２のＣ−Ｃ線矢視断面図。FIG. 5 is a sectional view taken along line CC of FIG. 2;
【図６】 図２のＤ−Ｄ線矢視断面図。FIG. 6 is a sectional view taken along line DD in FIG. 2;
【図７】 図２のＥ−Ｅ線矢視断面図。FIG. 7 is a sectional view taken along line EE of FIG. 2;
【図８】 図２のＦ−Ｆ線矢視断面図。FIG. 8 is a sectional view taken along line FF of FIG. 2;
【図９】 ロール成形部材の第１のフォーミング工程を
示す断面図。FIG. 9 is a cross-sectional view showing a first forming step of the roll forming member.
【図１０】 ロール成形部材の第２のフォーミング工程
を示す断面図。FIG. 10 is a sectional view showing a second forming step of the roll forming member.
【図１１】 ロール成形部材の第３のフォーミング工程
を示す断面図。FIG. 11 is a sectional view showing a third forming step of the roll forming member.
【図１２】 ロール成形部材の第４のフォーミング工程
を示す断面図。FIG. 12 is a sectional view showing a fourth forming step of the roll forming member.
【図１３】 ロールフォーミング完了時の断面図。FIG. 13 is a cross-sectional view when roll forming is completed.
【図１４】 本発明の車両バンパーの補強部材の他の実
施例を示す平面視図。FIG. 14 is a plan view showing another embodiment of the reinforcing member of the vehicle bumper of the present invention.
【図１５】 従来の車両バンパーの補強部材を示す部分
斜視図。FIG. 15 is a partial perspective view showing a reinforcing member of a conventional vehicle bumper.
１…フロントバンパー(車両バンパー) ２…ロール成形部材 ３…プレス成形部材 ４，９…中央部 ７，８，１２，１３…接合フランジ DESCRIPTION OF SYMBOLS 1: Front bumper (vehicle bumper) 2: Roll forming member 3: Press forming member 4, 9 ... Central part 7, 8, 12, 13 ... Joining flange
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年１１月２９日（１９９９．１１．
２９）[Submission date] November 29, 1999 (1999.11.
29)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 車両バンパーの補強部材[Title of the Invention] Reinforcing member for vehicle bumper
【特許請求の範囲】[Claims]
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】この発明は、車両のフロント
バンパーまたはリヤバンパーを補強するような車両バン
パーの補強部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle bumper reinforcing member for reinforcing a front bumper or a rear bumper of a vehicle.
【０００２】[0002]
【従来の技術】従来、車両バンパーの補強部材として
は、例えば特開平６−３２１０３３号公報に記載のもの
がある。2. Description of the Related Art Conventionally, as a reinforcing member for a vehicle bumper, for example, there is a member described in Japanese Patent Application Laid-Open No. Hei 6-32033.
【０００３】すなわち、図１５にその一部分を示すよう
に弓字形またはＷ字形にロールフォーミングされた中間
部材９１と、鋼製平板からなる天板９２および地板９３
とを設け、これら三者を溶接固定した車両バンパーの補
強部材である。[0003] More specifically, as shown in FIG. 15, an intermediate member 91 roll-formed into an arcuate or W-shape, a top plate 92 and a base plate 93 made of a steel flat plate.
And a reinforcement member for a vehicle bumper in which these three members are welded and fixed.
【０００４】この従来の車両バンパーの補強部材によれ
ば、上述の中間部材９１をロール成形にて形成するの
で、補強部材をプレス成形部材で構成するものに対して
金型の製作が不要な分、安価に構成することができる利
点を有する反面、次のような問題点があった。According to this conventional reinforcing member for a vehicle bumper, since the above-mentioned intermediate member 91 is formed by roll forming, there is no need to manufacture a mold as compared with the case where the reinforcing member is formed by a press-formed member. Although it has the advantage that it can be constructed at low cost, it has the following problems.
【０００５】つまり、車両のバンパーは車両デザインの
関係上、その車幅方向中央部が車幅方向側方部に対して
膨出（フロントバンパーの場合は前方に膨出、リヤバン
パーの場合は後方に膨出）しており、特に車幅方向の左
右両側部分は比較的曲率的半径が小さいアール状に形成
されるが、ロール成形では所定曲率半径より小さいアー
ル形状のフォーミングが困難で、しかも、ロール成形部
材の曲率を部材途中で変更することができず、曲率をつ
けたとしても、部材長手方向に対する一定の曲率形状が
得られるに過ぎない。That is, due to the design of the vehicle, the central portion of the vehicle bumper in the vehicle width direction bulges out to the side portion in the vehicle width direction (the front bumper bulges forward, and the rear bumper bulges rearward). In particular, the left and right sides in the vehicle width direction are formed in a round shape having a relatively small radius of curvature. However, it is difficult to form a round shape smaller than a predetermined radius of curvature by roll forming. The curvature of the molded member cannot be changed in the middle of the member, and even if the curvature is provided, only a constant curvature shape in the longitudinal direction of the member can be obtained.
【０００６】このため車両バンパーの補強部材は図１５
に示すように一定断面となり、車両のデザイン要求に対
応することができない問題点があった。For this reason, the reinforcing member of the vehicle bumper is shown in FIG.
As shown in the figure, there is a problem that the cross section becomes constant and it is not possible to meet the design requirements of the vehicle.
【０００７】[0007]
【発明が解決しようとする課題】この発明の請求項１記
載の発明は、弓字形一定断面のロール成形による部材
と、バンパー形状に対応して外部（フロントバンパーの
場合には前部、リヤバンパーの場合には後部）が膨出す
る逆弓字形を有し、車幅方向中央部が車幅方向側方部に
対して膨出したプレス成形による部材とを設け、ロール
成形による部材とプレス成形による部材とを接合するこ
とで、コストダウンと車両デザイン要求への対応性向上
との両立を図ることができる車両バンパーの補強部材の
提供を目的とする。[Problems that the Invention is to Solve] The invention of claim 1, wherein the present invention is a member by roll forming bow-shaped constant section, in the case in correspondence with the bumper shape of the outer (front bumper front of the rear bumper In the case where the rear part has a reverse arcuate shape that bulges out, the center part in the vehicle width direction is provided with a member formed by press forming that bulges out to the side part in the vehicle width direction, and a member formed by roll forming and a member formed by press forming are provided. It is an object of the present invention to provide a reinforcing member for a vehicle bumper that can achieve both cost reduction and improvement in responsiveness to vehicle design requirements by joining members.
【０００８】この発明の請求項２記載の発明は、上記請
求項１記載の発明の目的と併せて、上述のロール成形に
よる部材とプレス成形による部材の中央部をスポット溶
接し、各部材の上下両端に設けられた接合フランジをア
ーク溶接することで、中央部にあってはスポット溶接に
より溶接性の向上を図り、上下両端の接合フランジの溶
接には、スポット溶接用のガンを配設するスペースを考
慮する必要がなく、アーク溶接にて接合するので、制限
された所定高さ内において両部材間に良好かつ大きい閉
断面を確保することができ、しかもロール成形による部
材のバックリング（反曲）に対応して両部材間に若干の
位置ずれがあったとしても良好にアーク溶接を施すこと
ができる車両バンパーの補強部材の提供を目的とする。[0008] The invention according to claim 2 of the present invention, in addition to the object of the invention according to claim 1, provides the above-mentioned roll forming .
According to the central portion of the member and by press molding member spot welding, a joint flange provided on the upper and lower ends of each member by arc welding, in the central part aims to improve weldability by spot welding, vertical When welding the joining flanges at both ends, there is no need to consider the space for arranging the gun for spot welding, and the joints are joined by arc welding. Therefore, a good and large closed space between the two members within a limited predetermined height. A cross section can be ensured, and good arc welding can be performed even if there is a slight misalignment between the two members in response to buckling (reflexion) of the members by roll forming. It is an object of the present invention to provide a reinforcing member for a vehicle bumper that can be used.
【０００９】この発明の請求項３記載の発明は、上記請
求項１記載の発明の目的と併せて、上述のプレス成形に
よる部材の板厚をロール成形による部材の板厚に対して
薄く設定することで、ロール成形による部材の板厚によ
り充分な剛性を確保しつつ、プレス成形による部材の板
厚により軽量化を図ることができる車両バンパーの補強
部材の提供を目的とする。The invention according to claim 3 of the present invention, together with the object of the invention according to claim 1, provides the above-mentioned press molding .
By setting the thickness of the member to be formed thinner than the thickness of the member formed by roll forming, it is possible to secure sufficient rigidity by the thickness of the member formed by roll forming and to reduce the weight by the plate thickness of the member formed by press forming. It is an object of the present invention to provide a vehicle bumper reinforcing member that can be used.
【００１０】[0010]
【課題を解決するための手段】この発明の請求項１記載
の発明は、車幅方向に設けられ、車幅方向中央部が車幅
方向側部に対して車体前後方向の車体外方側に膨出した
所定の曲率をもつように形成されたバンパーと、該バン
パーと車体との間に設けられ、車体前後方向の車体外方
側の面が前記バンパーに沿って所定の曲率をもつように
形成された鋼板からなる補強部材とを備えた車両バンパ
ーの補強部材であって、上記補強部材は、車体上下方向
に独立した閉断面が２つ形成されるよう構成されると共
に、車体前後方向に分割された２つの鋼板を接合するこ
とで形成され、かつ、車体内方側の鋼板は、ロール成形
によって上下面の車体前後方向長さが略一定となる断面
弓字形に形成される一方で、車体外方側の鋼板は、プレ
ス成形によって断面逆弓字状に形成され、かつ上下面の
車体前後方向長さを車幅方向側部に対して車幅方向中央
部が長くなるよう構成して、車体前後方向の車体外方側
の面が前記バンパーに沿って所定の曲率をもつように形
成された車両バンパーの補強部材であることを特徴とす
る。The invention according to claim 1 of the present invention is provided in a vehicle width direction, and a central portion in the vehicle width direction has a vehicle width.
Bulges to the outside of the vehicle in the longitudinal direction of the vehicle relative to the side of the vehicle
A bumper formed to have a predetermined curvature;
It is installed between the par and the car body, and is located outside the car body in the longitudinal direction of the car body.
So that the side surface has a predetermined curvature along the bumper
Vehicle bumper provided with reinforcing member made of formed steel plate
A reinforcing member, wherein the reinforcing member is disposed in a vehicle vertical direction.
Is configured so that two independent closed sections are formed
The two steel plates divided in the vehicle longitudinal direction
And the steel sheet on the inner side of the vehicle body is roll formed
A cross section where the length of the upper and lower surfaces in the longitudinal direction of the vehicle is substantially constant
The steel plate on the outer side of the vehicle body is
Formed into an inverted arcuate cross-section by
The length in the vehicle longitudinal direction is centered in the vehicle width direction with respect to the vehicle width direction side.
The outer part of the vehicle in the longitudinal direction of the vehicle
Is shaped so as to have a predetermined curvature along the bumper.
It is a reinforcing member of the formed vehicle bumper.
【００１１】この発明の請求項２記載の発明は、上記請
求項１記載の発明の構成と併せて、上記ロール成形によ
る部材とプレス成形による部材の中央部がスポット溶接
され、各部材の上下両端に設けられた接合フランジがア
ーク溶接された車両バンパーの補強部材であることを特
徴とする。According to a second aspect of the present invention, in addition to the constitution of the first aspect of the present invention, the roll forming method is used.
That the central portion of the member and by the press forming member is spot welded, characterized in that it is a reinforcing member for a vehicle bumper joint flange is arc welding which is provided on the upper and lower ends of the respective members.
【００１２】この発明の請求項３記載の発明は、上記請
求項１記載の発明の構成と併せて、上記プレス成形によ
る部材の板厚がロール成形による部材の板厚に対して薄
く設定された車両バンパーの補強部材であることを特徴
とする。According to a third aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the above-mentioned press molding is used.
The thickness of the member is a reinforcing member for a vehicle bumper whose thickness is set to be smaller than the thickness of the member formed by roll forming.
【００１３】[0013]
【発明の作用及び効果】この発明の請求項１記載の発明
によれば、２つの鋼板を接合して形成された補強部材の
うち車体内方側の鋼板は、ロール成形によって上下面の
車体前後方向長さが略一定となる断面弓字形に形成さ
れ、車体外方側の鋼板は、プレス成形(曲率の成形が容
易な加工)によって断面逆弓字状に形成され、かつ上下
面の車体前後方向長さを車幅方向側部に対して車幅方向
中央部が長くなるように構成することで、車体前後方向
の車体外方側の面がバンパーに沿って所定の曲率をもつ
ように形成されているので、ロール成形による部材によ
りコストダウンを図ることができると共に、プレス成形
による部材によりデザイン形状に容易に対応することが
できる効果がある。According to the first aspect of the present invention, there is provided a reinforcing member formed by joining two steel plates.
Of which, the steel sheet on the inner side of the vehicle body is
It is formed in an arcuate cross-section that makes the length of the vehicle longitudinal direction substantially constant
Press forming (curvature forming is not
(Easy processing) to form a reverse arcuate cross section, and
Length of the vehicle body in the vehicle width direction with respect to the vehicle width direction side
By making the center part longer, the vehicle front-back direction
The outer surface of the vehicle has a predetermined curvature along the bumper
As a result, the cost can be reduced by using members formed by roll forming, and press forming is also possible.
There is an effect that it is possible to easily cope with the design shape by the member according to (1).
【００１４】すなわち、コストダウンと車両デザイン要
求への対応性向上との両立を図ることができる効果があ
る。That is, there is an effect that both cost reduction and improvement of responsiveness to vehicle design requirements can be achieved.
【００１５】この発明の請求項２記載の発明によれば、
上記請求項１記載の発明の効果と併せて、上述のロール
成形による部材とプレス成形による部材の中央部をスポ
ット溶接し、各部材の上下両端に設けられた接合フラン
ジをアーク溶接するので、中央部にあってはスポット溶
接により溶接性の向上を図ることができる。According to the invention described in claim 2 of the present invention,
In conjunction with the effect of the invention according to the first aspect, the central portion of the member by member and press molding by roll forming of the above-described spot welding, because the joining flange provided on the upper and lower ends of each member to arc welding, the central In the part, the weldability can be improved by spot welding.
【００１６】また上下両端の接合フランジの溶接には、
スポット溶接用のガンを配設するスペースを考慮する必
要がなく、アーク溶接にて接合するので、限られた所定
高さ内において両部材間に良好かつ大きい閉断面を確保
することができる効果がある。For welding the upper and lower joining flanges,
There is no need to consider the space for disposing the gun for spot welding, and joining is performed by arc welding, so that an effect that a good and large closed cross section can be secured between both members within a limited predetermined height. is there.
【００１７】しかも、ロール成形による部材のバックリ
ング（反曲）に対応して両部材間に若干の位置ずれがあ
ったとしても接合フランジを良好にアーク溶接すること
ができ、所謂部材の口開きの影響を受けにくい効果があ
る。Furthermore, even if there is a slight displacement between the two members in response to the buckling (rebound) of the members by roll forming, the joining flange can be satisfactorily arc-welded, so-called opening of the members. There is an effect that is hardly affected by
【００１８】この発明の請求項３記載の発明によれば、
上記請求項１記載の発明の効果と併せて、上述のプレス
成形による部材の板厚をロール成形による部材の板厚に
対して薄く設定したので、ロール成形による部材の板厚
により充分な剛性（衝突エネルギ吸収を満足すべき基本
的強度）を確保しつつ、プレス成形による部材の板厚に
より軽量化を達成することができる効果がある。According to the third aspect of the present invention,
In conjunction with the effect of the invention according to the first aspect, since the thickness of the member by press-molding the above was set to be thinner relative to the thickness of the member by roll forming, sufficient by the plate thickness of the member by roll forming stiffness ( There is an effect that the weight can be reduced by the thickness of the member formed by press molding while securing the basic strength that satisfies the impact energy absorption).
【００１９】[0019]
【実施例】この発明の一実施例を以下図面に基づいて詳
述する。図面は車両バンパーの補強部材を示し、図１乃
至図８においてフロントバンパー１の車体前後方向の断
面が一定の弓字形のロール成形による部材２(以下単に
ロール成形部材と称す)を設け、このロール成形部材２
に対応して前部車体外方側にが膨出する断面逆弓字形の
プレス成形による部材３(以下単にプレス成形部材と称
す)を設け、ロール成形部材２の前側にプレス成形部材
３を接合して、バンパーレインフォースメントを構成し
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show a reinforcing member for a vehicle bumper. In FIGS. 1 to 8, a front bumper 1 is formed by a roll-shaped member 2 (hereinafter simply referred to as an arc-shaped) having a constant cross-section in the vehicle longitudinal direction.
A roll forming member).
Correspondingly referred cross section opposite the bow-shaped member 3 by press forming (hereinafter simply press forming member to the front outside of the vehicle body side is bulged
And a press-formed member 3 is joined to the front side of the roll-formed member 2 to form a bumper reinforcement.
【００２０】なお、図１、図２においては図示の便宜
上、フロントバンパー１の車幅方向の中央部から車幅方
向の一端部までの構造を示すが、他端側の構造は図示構
造に対して左右対称に構成される。FIGS. 1 and 2 show the structure of the front bumper 1 from the center in the vehicle width direction to one end in the vehicle width direction for the convenience of illustration. It is configured symmetrically .
【００２１】上述のロール成形部材２(車体内方側の鋼
板)は板厚約１．６mmの高張力鋼板ＳＰＣＮ(張力約１０
０kgf／cm２)を用いてロールフォーミングされたバンパ
インフォースメント(補強部材)であって、このロール成
形部材２は図３〜図８に示す如く上下方向に指向する中
央部４と、この中央部４の上下に一体形成され、かつ後
方へ突出する上側突出部５および下側突出部６と、上側
突出部５から上方に延びて中央部４の前面と面一状と成
る上部接合フランジ７と、下側突出部６から下方に延び
て中央部４の前面と面一状と成る下部接合フランジ８と
を備え、全体として弓字形の一定断面を有するものであ
る。つまり、車体内方側の鋼板としてのロール成形部材
２は、ロール成形によって上下面の車体前後方向長さが
略一定となる断面弓字形に形成されたものである。 The above-mentioned roll forming member 2 (steel on the inner side of the vehicle body)
The plate is a high-strength steel plate SPCN (with a tension of about 10 mm )
0 kgf / cm 2 ), which is a bumper reinforcement (reinforcing member) roll-formed using a roll-formed member 2 having a central part 4 oriented in the vertical direction as shown in FIGS. An upper protruding portion 5 and a lower protruding portion 6 integrally formed above and below the upper portion 4 and protruding rearward; an upper joint flange 7 extending upward from the upper protruding portion 5 and flush with the front surface of the central portion 4; And a lower joining flange 8 extending downward from the lower protruding portion 6 and flush with the front surface of the central portion 4, and has a constant bow-shaped cross section as a whole. In other words, a roll-formed member as a steel plate inside the vehicle body
2. The length of the upper and lower surfaces in the longitudinal direction of the vehicle
It is formed in a substantially constant arcuate cross section.
【００２２】一方、上述のプレス成形部材３は板厚約
１．４mmの高張力鋼板ＳＰＣＮ(張力約６０kgf／cm２)
を用いてプレス成形加工されたバンパインフォースメン
ト(補強部材)であって、このプレス成形部材３は図３〜
図８に示す如く上下方向に指向する中央部９と、この中
央部９の上下に一体形成され、かつ前方へ突出する上側
突出部１０および下側突出部１１と、上側突出部１０か
ら上方に延びて中央部９の背面と面一状と成る上部接合
フランジ１２と、下側突出部１１から下方に伸びて中央
部９の背面と面一状と成る下部接合フランジ１３とを備
え、全体として逆弓字形の断面を有するものである。On the other hand, the above-mentioned press-formed member 3 is a high-tensile steel plate SPCN having a thickness of about 1.4 mm (tensile: about 60 kgf / cm 2 ).
Is a bumper reinforcement (reinforcement member) press-formed by using
As shown in FIG. 8, a central portion 9 that is oriented in the up-down direction, an upper protruding portion 10 and a lower protruding portion 11 integrally formed above and below the central portion 9 and protruding forward, and an upper portion protruding from the upper protruding portion 10. An upper joint flange 12 extending and flush with the back surface of the central portion 9 and a lower joint flange 13 extending downward from the lower protrusion 11 and flush with the rear surface of the central portion 9 are provided as a whole. It has an inverted arcuate cross section.
【００２３】しかも、このプレス成形部材３(車体外方
側の鋼板)は図１の平面図から明らかなように車幅方向
中央部３ａが車幅方向側方部３ｂに対してフロント側へ
膨出すべく構成されている。特に、車幅方向側方部３ｂ
はデザイン要求に対応して比較的小さい曲率半径で後方
へ向けてアール状に屈曲形成されている。Moreover, the press-formed member 3 (outside the vehicle body)
As is clear from the plan view of FIG. 1, the central portion 3a in the vehicle width direction is configured so as to bulge toward the front side with respect to the lateral portion 3b in the vehicle width direction. In particular, the side portion 3b in the vehicle width direction
Is formed to have a relatively small radius of curvature corresponding to a design requirement and is bent backward in a round shape.
【００２４】つまり、車体外方側の鋼板としてのプレス
成形部材３は、プレス成形によって断面逆弓字状に形成
され、かつ上下面の車体前後方向長さを車幅方向側部に
対して車幅方向中央部が長くなるよう構成して、車体前
後方向の車体外方側の面がバンパーに沿って所定の曲率
をもつように形成されたものである。 That is, a press as a steel plate on the outer side of the vehicle body
The molded member 3 is formed in an inverted arcuate cross section by press molding.
And the length of the upper and lower surfaces in the longitudinal direction of the vehicle
Contrastingly, the central part in the vehicle width direction is configured to be longer,
A predetermined curvature along the bumper is applied to the outside of the vehicle in the rear direction.
It is formed to have.
【００２５】上述のロール成形部材２の中央部４と、プ
レス成形部材３の中央部９とを対接させて、これら両中
央部４，９をスポット溶接する一方、上述のロール成形
部材２の上下両端の接合フランジ７，８と、プレス成形
部材３の上下両端の接合フランジ１２，１３とを相対向
させて、上側の各接合フランジ７，１２をアーク溶接す
ると共に、下側の各接合フランジ８，１３をアーク溶接
して、両部材２，３間に車幅方向に延びる独立した２つ
の閉断面１４，１５を離間形成している。The center portion 4 of the roll forming member 2 and the center portion 9 of the press forming member 3 are brought into contact with each other, and the center portions 4 and 9 are spot-welded. The upper and lower joining flanges 7, 8 are opposed to the upper and lower joining flanges 12, 13 of the press-formed member 3, and the upper joining flanges 7, 12 are arc-welded, and the lower joining flanges are respectively. 8,13 to arc welding, and the two closed cross section 14, 15 independent extending in the vehicle width direction between both the members 2 and 3 separated form.
【００２６】ここで、ロール成形部材２側の接合フラン
ジ７，８の上下方向への突出量を、プレス成形部材３側
の接合フランジ１２，１３の上下方向への突出量に対し
て小さく設定し、接合フランジ７，１２および接合フラ
ンジ８，１３を当接した時、その当接形状を段差状と成
して、この段差部をアーク溶接の肉盛り空間として有効
利用すべく構成している。Here, the amount of vertical protrusion of the joining flanges 7 and 8 of the roll forming member 2 is set smaller than the amount of vertical protrusion of the joining flanges 12 and 13 of the press forming member 3. When the joining flanges 7 and 12 and the joining flanges 8 and 13 are brought into contact with each other, the contact shape is formed as a stepped portion, and the stepped portion is configured to be effectively used as a build-up space for arc welding.
【００２７】なお、上述のスポット溶接およびアーク溶
接は両部材２，３の長手方向つまり車幅方向において所
定等間隔毎に部分的に実行されるが、上述アーク溶接は
間隔を隔てることなく連続して実行してもよい。The above-described spot welding and arc welding are partially performed at predetermined regular intervals in the longitudinal direction of the two members 2 and 3, that is, in the vehicle width direction, but the above-described arc welding is continuously performed without an interval. May be executed.
【００２８】ところで、上述のプレス成形部材３の前側
には発泡スチロール等により形成された衝突エネルギ吸
収部材１６を介してバンパフェース１７を配設するが、
このバンパフェース１７は該バンパフェース１７の上下
の基端部に一体形成された取付け片１８〜２２(図３〜
図８参照)を、ボルト２３およびナット２４を用いてロ
ール成形部材２側に取付けるものである。上述の各ナッ
ト２４は突出部５，６またはロール成形部材２に一体的
に取付けられた支持ブラケット２５(図８参照)に対して
予め溶接固定されたものであり、図１に示す２６はボル
ト２３を挿通させるためのボルト挿通孔である。A bumper face 17 is disposed in front of the above-mentioned press-formed member 3 via a collision energy absorbing member 16 formed of styrene foam or the like.
The bumper face 17 is provided with mounting pieces 18 to 22 (FIGS. 3 to 4) integrally formed on upper and lower base ends of the bumper face 17.
8) is attached to the roll forming member 2 using bolts 23 and nuts 24. Each of the nuts 24 is previously welded and fixed to a support bracket 25 (see FIG. 8) integrally attached to the protruding portions 5, 6 or the roll forming member 2, and 26 shown in FIG. 23 is a bolt insertion hole for inserting the bolt 23.
【００２９】このように構成されたフロントバンパー１
は図１、図２に示す如くバンパブラケット２７を介して
車体フレーム２８に取付けられる。上述のバンパブラケ
ット２７には図２、図７に示す如く、その中央部上下に
溶接用の孔部２９，２９が離間成形され、この孔部２９
を利用してバンパブラケット２７と突出部５，６背面と
をアーク溶接手段にて接合する。The front bumper 1 constructed as described above
Is mounted on a vehicle body frame 28 via a bumper bracket 27 as shown in FIGS. As shown in FIGS. 2 and 7, welding holes 29, 29 are formed at the center of the bumper bracket 27 above and below the center of the bumper bracket 27.
, The bumper bracket 27 and the rear surfaces of the protruding portions 5 and 6 are joined by arc welding means.
【００３０】また上述のバンパブラケット２７の車外側
端部には図２、図８に示す如く２つのボルト３０，３０
と１つの位置決めピン３１とを接合し、車内側端部には
図２、図６に示す如く２つのボルト３２，３２を接合す
ると共に、２つのボルト配置孔３３，３３を形成し、こ
のバンパブラケット２７の左右共通化を図っている。As shown in FIGS. 2 and 8, two bolts 30, 30 are provided on the outer end of the bumper bracket 27.
And one positioning pin 31, and two bolts 32, 32 as shown in FIGS. 2 and 6, and two bolt arrangement holes 33, 33 are formed at the inner end of the vehicle. The left and right brackets 27 are shared.
【００３１】而して、上述のバンパブラケット２７は各
ボルト３０，３２に螺合させるナット３４で、車体フレ
ーム２８に取付けられる。The above-described bumper bracket 27 is attached to the vehicle body frame 28 by a nut 34 screwed to each of the bolts 30 and 32.
【００３２】要するに上記構成の車両バンパーの補強部
材は、車幅方向に設けられ、車幅方向中央部が車幅方向
側部に対して車体前後方向の車体外方側に膨出した所定
の曲率をもつように形成されたバンパフェース１７と、
該バンパフェース１７と車体フレーム２８との間に設け
られ、車体前後方向の車体外方側の面が前記バンパフェ
ース１７に沿って所定の曲率をもつように形成された鋼
板からなる補強部材(ロール成形部材２、プレス成形部
材３参照)とを備えた車両バンパーの補強部材であっ
て、上記補強部材(ロール成形部材２、プレス成形部材
３参照)は、車体上下方向に独立した閉断面１４，１５
が２つ形成されるよう構成されると共に、車体前後方向
に分割された２つの鋼板を接合することで形成され、か
つ、車体内方側の鋼板(ロール成形部材２参照)は、ロー
ル成形によって上下面の車体前後方向長さが略一定とな
る断面弓字形に形成される一方で、車体外方側の鋼板
(プレス成形部材３参照)は、プレス成形によって断面逆
弓字状に形成され、かつ上下面の車体前後方向長さを車
幅方向側部に対して車幅方向中央部が長くなるよう構成
して、車体前後方向の車体外方側の面が前記バンパフェ
ース１７に沿って所定の曲率をもつように形成されたも
のである。 In short, the reinforcing portion of the vehicle bumper having the above configuration.
The material is provided in the vehicle width direction, and the central part in the vehicle width direction is the vehicle width direction.
Predetermined swelling on the outside of the vehicle body in the longitudinal direction of the vehicle
A bumper face 17 formed to have a curvature of
Provided between the bumper face 17 and the body frame 28
The outer surface of the vehicle body in the front-rear direction of the vehicle
Steel formed to have a predetermined curvature along the base 17
Reinforcement member consisting of a plate (roll forming member 2, press forming section
Material 3).
The reinforcing member (roll forming member 2, press forming member
3) are closed cross sections 14, 15 that are independent in the vertical direction of the vehicle body.
Are formed, and the vehicle body longitudinal direction
Formed by joining two steel plates divided into
The steel plate on the inner side of the vehicle body (see roll forming member 2)
The length of the upper and lower surfaces in the longitudinal direction of the vehicle
Steel plate on the outside of the vehicle body
(Refer to press-formed member 3)
The length of the upper and lower surfaces in the longitudinal direction of the vehicle
Configuration so that the center in the vehicle width direction is longer than the side in the width direction
The outer surface of the vehicle in the front-rear direction of the vehicle
Formed so as to have a predetermined curvature along the
It is.
【００３３】図９〜図１３は平板からロール成形部材２
をロール成形する工程の一例を示し、まず図９に示すよ
うに平板(帯板)をロール間にてロールフォーミングし
て、コ字状部材３５と成す。次に図１０に示す如くコ字
状部材３５の開口側を外方へ略直角に折曲げるようにロ
ールフォーミングして鍔部３６，３６を形成する。FIGS. 9 to 13 show a roll-formed member 2 from a flat plate.
An example of a process of forming a roll into a roll is shown. First, as shown in FIG. 9, a flat plate (strip) is roll-formed between rolls to form a U-shaped member 35. Next, as shown in FIG. 10, the flanges 36, 36 are formed by roll forming so that the opening side of the U-shaped member 35 is bent outward at substantially a right angle.
【００３４】次に図１１に示す如く鍔部３６，３６の先
端をコ字状部材３５の開口方向と平行な方向に折曲げる
ようにロールフォーミングして接合フランジ７，８を形
成する。次に図１２に示す如くコ字状部材３５をその開
口側中途部から外方へ折曲げるようにロールフォーミン
グして、コ字状部材３５の上下に近似突出部３７，３８
を形成する。Next, as shown in FIG. 11, the flanges 36, 36 are roll-formed so as to be bent in a direction parallel to the opening direction of the U-shaped member 35 to form the joining flanges 7, 8. Next, as shown in FIG. 12, the U-shaped member 35 is roll-formed so as to be bent outward from a middle portion on the opening side, and approximate protrusions 37 and 38 are formed above and below the U-shaped member 35.
To form
【００３５】次に図１２に示す近似形状部材３９を最終
段のロール間にてロールフォーミングすると、図１３に
示すような一定断面のロール成形部材２が成形される。
なお、図１で示す実施例ではロール成形部材２の車幅方
向側方部の前面をプレス成形部材３の対応部分の形状に
合わせて一部切削除去しているが、図１４に示すように
ロール成形部材２の車幅方向側方部の前面を何等切削除
去することなく、ロールフォーミングされた形状のまま
で用いるように構成してもよい。Next, when the approximate shape member 39 shown in FIG. 12 is roll-formed between the last rolls, the roll forming member 2 having a constant cross section as shown in FIG. 13 is formed.
In the embodiment shown in FIG. 1, the front surface of the roll forming member 2 on the side in the vehicle width direction is partially cut and removed according to the shape of the corresponding portion of the press forming member 3, but as shown in FIG. The roll-formed member 2 may be configured to be used in the roll-formed shape without cutting or removing the front surface of the side portion in the vehicle width direction at all.
【００３６】このように上記構成の車両バンパーの補強
部材によれば、２つの鋼板(各部材２，３参照)を接合し
て形成された補強部材(ロール成形部材２、プレス成形
部材３参照)のうち車体内方側の鋼板(ロール成形部材２
参照)は、ロール成形によって上下面の車体前後方向長
さが略一定となる断面弓字形に形成され、車体外方側の
鋼板(プレス成形部材３参照)は、プレス成形(曲率の成
形が容易な加工)によって断面逆弓字状に形成され、か
つ上下面の車体前後方向長さを車幅方向側部に対して車
幅方向中央部が長くなるように構成することで、車体前
後方向の車体外方側の面がバンパー(バンパフェース１
７参照)に沿って所定の曲率をもつように形成されてい
るので、ロール成形部材２によりコストダウンを図るこ
とができると共に、プレス成形部材３によりデザイン形
状に容易に対応することができる効果がある。すなわ
ち、コストダウンと車両デザイン要求への対応性向上と
の両立を図ることができる効果がある。As described above, according to the vehicle bumper reinforcing member having the above-described structure, two steel plates (see members 2 and 3) are joined.
(Roll-formed member 2, press-formed)
(See member 3), the steel plate on the inner side of the vehicle body (roll forming member 2)
) Is the length of the upper and lower surfaces in the longitudinal direction of the vehicle by roll forming.
Is formed into an arcuate cross-section that is approximately constant,
The steel plate (see press-formed member 3) is press-formed (curved component).
(Easy processing)
The length of the upper and lower surfaces in the longitudinal direction of the vehicle
By making the widthwise center part longer, the front of the vehicle
The outside surface of the vehicle body in the rear direction is the bumper (bumper face 1).
7) and have a predetermined curvature.
Therefore, there is an effect that the cost can be reduced by the roll forming member 2 and the design shape can be easily handled by the press forming member 3. In other words, there is an effect that both cost reduction and improvement in responsiveness to vehicle design requirements can be achieved.
【００３７】さらに、上述のロール成形部材２とプレス
成形部材３の中央部４，９をスポット溶接し、上下両端
の接合フランジ７，８，１２，１３をアーク溶接するの
で、中央部４，９にあってはスポット溶接により溶接性
の向上を図ることができる。Further, the center portions 4, 9 of the above-mentioned roll forming member 2 and the press forming member 3 are spot-welded, and the joining flanges 7, 8, 12, 13 at the upper and lower ends are arc-welded. In this case, the weldability can be improved by spot welding.
【００３８】また上下両端の接合フランジ７，８，１
２，１３の溶接には、スポット溶接用のガンを配設する
スペースを考慮する必要がなく、アーク溶接にて接合す
るので、限られた所定高さ内において両部材２，３間に
良好かつ大きい閉断面１４，１５を確保することができ
る効果がある。The joining flanges 7, 8, 1 at the upper and lower ends are also provided.
It is not necessary to consider the space for arranging the gun for spot welding in the welding of the members 2 and 13, and they are joined by arc welding. There is an effect that large closed sections 14 and 15 can be secured.
【００３９】しかも、ロール成形部材２のバックリング
(反曲)に対応して両部材２，３間に若干の位置ずれが生
じたとしても、上下方向に指向する接合フランジ７，
８，１２，１３を当接することで、これら接合フランジ
７，８，１２，１３を良好にアーク溶接することがで
き、所謂部材の口開きの影響を受けにくい効果がある。Moreover, the buckling of the roll forming member 2
Even if there is a slight displacement between the two members 2 and 3 corresponding to the (inflection), the joining flanges 7,
By abutting 8, 12, and 13, these joining flanges 7, 8, 12, and 13 can be satisfactorily arc welded, and there is an effect of being less susceptible to so-called opening of members.
【００４０】加えて、上述のプレス成形部材３の板厚
(例えば約１．４mm)をロール成形部材２の板厚(例えば
約１．６mm)に対して薄く設定したので、ロール成形部
材２の板厚により充分な剛性(衝突エネルギ吸収を満足
すべき基本的強度)を確保しつつ、プレス成形部材３の
板厚により軽量化を達成することができる効果があり、
プレス加工性も向上する。In addition, the thickness of the above-mentioned press-formed member 3
(For example, about 1.4 mm) is set to be thinner than the thickness of the roll forming member 2 (for example, about 1.6 mm). (Strength), while reducing the weight by the thickness of the press-formed member 3.
Press workability is also improved.
【００４１】さらに、上述の補強部材をロール成形部材
２とプレス成形部材３との２部材で構成したので、必要
なエネルギ特性を得るように２部材２，３の板厚を変更
することができる。Further, since the above-mentioned reinforcing member is composed of two members, the roll forming member 2 and the press forming member 3, the thickness of the two members 2 and 3 can be changed so as to obtain necessary energy characteristics. .
【００４２】この発明の構成と、上述の実施例との対応
において、この発明の車両バンパーは、実施例のフロン
トバンパー１に対応し、以下同様にバンパーはバンパフ
ェース１７に対応し、補強部材(レインフォースメント)
は、ロール成形部材２、プレス成形部材３に対応し、車
体は、車体フレーム２８に対応し、車体内方側の鋼板
は、ロール成形部材２に対応し、車体外方側の鋼板は、
プレス成形部材３に対応するものであるが、この発明
は、上述の実施例の構成のみに限定されるものではな
い。In correspondence between the structure of the present invention and the above-described embodiment, the vehicle bumper of the present invention corresponds to the front bumper 1 of the embodiment, and similarly, the bumper is a bumper
Reinforced member (reinforcement)
Corresponds to the roll forming member 2 and the press forming member 3,
The body corresponds to the body frame 28, and the steel plate on the inner side of the body
Corresponds to the roll forming member 2, and the steel plate on the outer side of the vehicle body is
Although corresponding to the press-formed member 3, the present invention is not limited to the configuration of the above-described embodiment.
【００４３】つまり、本発明の車両バンパーの補強部材
はフロントバンパー側の構成に限定されるものではな
く、リヤバンパー側の構成に摘要することができるのは
勿論である。また、ロール成形部材２およびプレス成形
部材３の材質、板厚は実施例のものに限定されるもので
はなく、これら２部材２，３の板厚は同厚であってもよ
く、異厚であってもよい。That is, the reinforcing member of the vehicle bumper of the present invention is not limited to the structure on the front bumper side, but can be added to the structure on the rear bumper side. Further, the material and plate thickness of the roll forming member 2 and the press forming member 3 are not limited to those of the embodiment, and the plate thicknesses of these two members 2 and 3 may be the same or different. There may be.
【図面の簡単な説明】[Brief description of the drawings]
【図１】 本発明の車両バンパーの補強部材を示す平面
視図。FIG. 1 is a plan view showing a reinforcing member of a vehicle bumper according to the present invention.
【図２】 補強部材の正面図。FIG. 2 is a front view of a reinforcing member.
【図３】 図２のＡ−Ａ線矢視断面図。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】 図２のＢ−Ｂ線矢視断面図。FIG. 4 is a sectional view taken along line BB of FIG. 2;
【図５】 図２のＣ−Ｃ線矢視断面図。FIG. 5 is a sectional view taken along line CC of FIG. 2;
【図６】 図２のＤ−Ｄ線矢視断面図。FIG. 6 is a sectional view taken along line DD in FIG. 2;
【図７】 図２のＥ−Ｅ線矢視断面図。FIG. 7 is a sectional view taken along line EE of FIG. 2;
【図８】 図２のＦ−Ｆ線矢視断面図。FIG. 8 is a sectional view taken along line FF of FIG. 2;
【図９】 ロール成形部材の第１のフォーミング工程を
示す断面図。FIG. 9 is a cross-sectional view showing a first forming step of the roll forming member.
【図１０】 ロール成形部材の第２のフォーミング工程
を示す断面図。FIG. 10 is a sectional view showing a second forming step of the roll forming member.
【図１１】 ロール成形部材の第３のフォーミング工程
を示す断面図。FIG. 11 is a sectional view showing a third forming step of the roll forming member.
【図１２】 ロール成形部材の第４のフォーミング工程
を示す断面図。FIG. 12 is a sectional view showing a fourth forming step of the roll forming member.
【図１３】 ロールフォーミング完了時の断面図。FIG. 13 is a cross-sectional view when roll forming is completed.
【図１４】 本発明の車両バンパーの補強部材の他の実
施例を示す平面視図。FIG. 14 is a plan view showing another embodiment of the reinforcing member of the vehicle bumper of the present invention.
【図１５】 従来の車両バンパーの補強部材を示す部分
斜視図。FIG. 15 is a partial perspective view showing a reinforcing member of a conventional vehicle bumper.
【符号の説明】 １…フロントバンパー(車両バンパー) ２…ロール成形部材 ３…プレス成形部材 ４，９…中央部 ７，８，１２，１３…接合フランジ[Description of Signs] 1 Front bumper (vehicle bumper) 2 Roll forming member 3 Press forming member 4, 9 Central part 7, 8, 12, 13 Joint flange
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐伯 晋次 広島県安芸郡府中町新地３番１号 マツダ 株式会社内 (72)発明者 後藤 宏 岡山県総社市真壁1597番地 オーエム工業 株式会社総社工場内 (72)発明者 平松 康明 岡山県総社市真壁1597番地 オーエム工業 株式会社総社工場内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinji Saeki 3-1 Shinchi, Funaka-cho, Aki-gun, Hiroshima Prefecture Inside Mazda Co., Ltd. (72) The inventor Yasuaki Hiramatsu 1597 Makabe, Soja City, Okayama Prefecture
Claims (3)
ーの前後方向断面が一定の弓字形のロール成形部材の外
側に、該ロール成形部材に対応して外部が膨出する逆弓
字形を有し車幅方向中央部が車幅方向側方部に対して膨
出したプレス成形部材を接合し、上記ロール成形部材と
プレス成形部材の上下両端に相対向する接合フランジを
設け、上記ロール成形部材とプレス成形部材の中央部お
よび上下両端の接合フランジが接合された車両バンパー
の補強部材。1. A reinforcing member for a vehicle bumper, wherein the bumper has an inverted arcuate shape in which the cross section in the front-rear direction of the bumper is outside the arcuate shape and the outside bulges in correspondence with the roll shape. The center portion in the vehicle width direction is joined to a press-formed member that bulges out to the side portion in the vehicle width direction, and the roll-formed member and the press-formed member are provided with opposing joining flanges at upper and lower ends of the roll-formed member. A reinforcing member for a vehicle bumper in which the joining flanges at the center and upper and lower ends of the press-formed member are joined.
央部がスポット溶接され、上下両端の接合フランジがア
ーク溶接された請求項１記載の車両バンパーの補強部
材。2. The reinforcing member for a vehicle bumper according to claim 1, wherein a center portion of the roll-formed member and the press-formed member is spot-welded, and joining flanges at both upper and lower ends are arc-welded.
材の板厚に対して薄く設定された請求項１記載の車両バ
ンパーの補強部材。3. The reinforcing member for a vehicle bumper according to claim 1, wherein the thickness of the press-formed member is set smaller than the thickness of the roll-formed member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11003935A JP3053618B1 (en) | 1999-01-11 | 1999-01-11 | Reinforcement members for vehicle bumpers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11003935A JP3053618B1 (en) | 1999-01-11 | 1999-01-11 | Reinforcement members for vehicle bumpers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3053618B1 JP3053618B1 (en) | 2000-06-19 |
| JP2000198401A true JP2000198401A (en) | 2000-07-18 |
Family
ID=11571004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11003935A Expired - Lifetime JP3053618B1 (en) | 1999-01-11 | 1999-01-11 | Reinforcement members for vehicle bumpers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3053618B1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2367789A (en) * | 2000-10-11 | 2002-04-17 | Ford Global Tech Inc | Bumper system for a motor vehicle |
| GB2380715A (en) * | 2001-10-06 | 2003-04-16 | Ford Global Tech Inc | Bumper assembly |
| JP2007137114A (en) * | 2005-11-15 | 2007-06-07 | Toyota Motor Corp | Bumper structure for vehicle |
| JP2009241724A (en) * | 2008-03-31 | 2009-10-22 | Fuji Heavy Ind Ltd | Vehicular bumper beam |
| WO2011125223A1 (en) | 2010-04-09 | 2011-10-13 | トヨタ自動車株式会社 | Bumper reinforcement structure |
| WO2012131855A1 (en) | 2011-03-25 | 2012-10-04 | トヨタ自動車株式会社 | Structure of vehicle end section |
| JP2017185929A (en) * | 2016-04-07 | 2017-10-12 | 本田技研工業株式会社 | Vehicular bumper structure |
| JP2018012392A (en) * | 2016-07-20 | 2018-01-25 | 本田技研工業株式会社 | Vehicle front part structure |
-
1999
- 1999-01-11 JP JP11003935A patent/JP3053618B1/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2367789B (en) * | 2000-10-11 | 2004-08-18 | Ford Global Tech Inc | A bumper system for a motor vehicle |
| DE10149748B4 (en) * | 2000-10-11 | 2005-12-08 | Ford Global Technologies, LLC (n.d.Ges.d. Staates Delaware), Dearborn | Bumper system for a motor vehicle |
| GB2367789A (en) * | 2000-10-11 | 2002-04-17 | Ford Global Tech Inc | Bumper system for a motor vehicle |
| GB2380715A (en) * | 2001-10-06 | 2003-04-16 | Ford Global Tech Inc | Bumper assembly |
| GB2380715B (en) * | 2001-10-06 | 2004-10-06 | Ford Global Tech Inc | A bumper assembly |
| JP2007137114A (en) * | 2005-11-15 | 2007-06-07 | Toyota Motor Corp | Bumper structure for vehicle |
| JP2009241724A (en) * | 2008-03-31 | 2009-10-22 | Fuji Heavy Ind Ltd | Vehicular bumper beam |
| US8967687B2 (en) | 2010-04-09 | 2015-03-03 | Toyota Jidosha Kabushiki Kaisha | Bumper reinforcement structure |
| WO2011125223A1 (en) | 2010-04-09 | 2011-10-13 | トヨタ自動車株式会社 | Bumper reinforcement structure |
| WO2012131855A1 (en) | 2011-03-25 | 2012-10-04 | トヨタ自動車株式会社 | Structure of vehicle end section |
| US8820804B2 (en) | 2011-03-25 | 2014-09-02 | Toyota Jidosha Kabushiki Kaisha | Vehicle end section structure |
| JP5299581B2 (en) * | 2011-03-25 | 2013-09-25 | トヨタ自動車株式会社 | Vehicle end structure |
| JP2017185929A (en) * | 2016-04-07 | 2017-10-12 | 本田技研工業株式会社 | Vehicular bumper structure |
| CN107264451A (en) * | 2016-04-07 | 2017-10-20 | 本田技研工业株式会社 | Bumper structure for vehicle |
| CN107264451B (en) * | 2016-04-07 | 2019-10-08 | 本田技研工业株式会社 | Bumper structure for vehicle |
| JP2018012392A (en) * | 2016-07-20 | 2018-01-25 | 本田技研工業株式会社 | Vehicle front part structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3053618B1 (en) | 2000-06-19 |
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