JP2005145394A - Car body front structure for automobile - Google Patents

Car body front structure for automobile Download PDF

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Publication number
JP2005145394A
JP2005145394A JP2003389850A JP2003389850A JP2005145394A JP 2005145394 A JP2005145394 A JP 2005145394A JP 2003389850 A JP2003389850 A JP 2003389850A JP 2003389850 A JP2003389850 A JP 2003389850A JP 2005145394 A JP2005145394 A JP 2005145394A
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Prior art keywords
shock absorbing
absorbing member
bumper armature
bumper
vehicle body
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JP2003389850A
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Japanese (ja)
Inventor
Takeshi Mori
赳 森
Yoshiyuki Hamano
慶幸 浜野
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Marelli Corp
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Calsonic Kansei Corp
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Priority to JP2003389850A priority Critical patent/JP2005145394A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a car body front structure for an automobile, securely capable of putting an obstacle on a front hood, instead of rolling the obstacle below the vehicle, when the obstacle collides with each end part of a bumper armature. <P>SOLUTION: In the automobile, a first shock absorbing member 7 is provided along a front face of the bumper armature 4 except for both end parts, and second shock absorbing members 6 and 6 are provided at least along the front face of the bumper armature 4 at both end parts. Forward/rearward rigidity of the second shock absorbing members 6 and 6 is set to be higher than that of the first shock absorbing member 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は自動車の車体前部構造に関する。   The present invention relates to a vehicle body front structure.

従来、自動車の車体前部構造は、バンパアーマチュアの前面に沿って衝撃吸収部材が配置され、該バンパアーマチュアの下方に突出部材が配置されることにより、自動車が障害物に衝突した際、前記衝撃吸収部材が障害物の受ける衝撃を吸収しつつ、前記突出部材が障害物の下部に車両外方への回転力を与え、これにより障害物をフロントフード上に載せ上げるようにして該障害物の車両下方への巻き込みを防止する技術が公知となっている（特許文献１参照）。
特開２００１−８８６３４号公報 2. Description of the Related Art Conventionally, a vehicle body front structure has a shock absorbing member disposed along a front surface of a bumper armature, and a protruding member is disposed below the bumper armature. While the absorbing member absorbs the impact received by the obstacle, the projecting member gives a rotational force to the outside of the vehicle to the lower part of the obstacle, thereby causing the obstacle to be placed on the front hood. A technique for preventing the vehicle from being caught downward is known (see Patent Document 1).
JP 2001-88634 A

しかしながら、従来の自動車の車体前部構造においては、バンパアーマチュアの両端部が自動車のデザイン上の制約等から後方へ屈曲した形状に形成されているため、例えば、障害物がバンパアーマチュアの中央部から両端部にかけてオフセット衝突した後に該障害物が車幅方向外側へ弾かれてうまくボンネットフード上に載せ上げることができない虞がある。   However, in the conventional vehicle body front structure, since both ends of the bumper armature are formed in a shape bent backward due to restrictions on the design of the vehicle, for example, an obstacle is formed from the central portion of the bumper armature. There is a possibility that the obstacle may be bounced outward in the vehicle width direction and cannot be properly placed on the bonnet hood after an offset collision occurs at both ends.

本発明は、上記問題点に着目してなされたもので、その目的とするところは、障害物がバンパアーマチュアの中央部から両端部にかけてオフセット衝突した際にも該障害物を確実にフロントフード上に載せ上げて該障害物の車両下方への巻き込みを防止できる自動車の車体前部構造を提供することである。   The present invention has been made paying attention to the above-mentioned problems, and the object of the present invention is to ensure that the obstacle is reliably placed on the front hood even when the obstacle collides with an offset from the central part to both ends of the bumper armature. It is intended to provide a vehicle body front structure that can be mounted on a vehicle to prevent the obstacle from being caught in the lower part of the vehicle.

本発明の請求項１記載の発明では、車幅方向に延在し、且つ、両端部に向かうに従って後方へ屈曲したバンパアーマチュアと、前記バンパアーマチュアの下方に設けられ、且つ、車幅方向に延在する突出部材と、を備えた自動車の車体前部構造において、前記バンパアーマチュアの両端部を除く前面に沿って第１衝撃吸収部材を設け、前記バンパアーマチュアの両端部の少なくとも前面に沿って第２衝撃吸収部材を設け、前記第２衝撃吸収部材の前後方向の剛性を第１衝撃吸収部材よりも高く設定したことを特徴とする。   According to the first aspect of the present invention, the bumper armature that extends in the vehicle width direction and is bent rearward toward both ends, and is provided below the bumper armature and extends in the vehicle width direction. In the vehicle body front structure having a protruding member, a first shock absorbing member is provided along the front surface excluding both ends of the bumper armature, and the first shock absorbing member is provided along at least the front surface of both ends of the bumper armature. Two shock absorbing members are provided, and the rigidity of the second shock absorbing member in the front-rear direction is set higher than that of the first shock absorbing member.

請求項１記載の発明にあっては、障害物がバンパアーマチュアの中央部から両端部にかけてオフセット衝突した際、障害物は第１、２衝撃吸収部材によって衝突時の衝撃を吸収されつつ、その下部において車両外方への回転力を与えられる。   In the first aspect of the invention, when the obstacle collides with the bumper armature from the center part to the both ends, the obstacle is absorbed by the first and second shock absorbing members while the lower part of the obstacle is absorbed. , A rotational force is given to the outside of the vehicle.

この際、第２衝撃吸収部材の前後方向の剛性は前記第１衝撃吸収部材よりも高く設定されているため、障害物に対して車幅方向内側への力が作用し、これにより、従来の発明のように障害物が車幅方向外側へ弾かれることがなく、該障害物を確実にフロントフード上に載せ上げて車両下方への巻き込みを防止できる。   At this time, since the rigidity in the front-rear direction of the second shock absorbing member is set higher than that of the first shock absorbing member, a force inward in the vehicle width direction acts on the obstacle, thereby As in the invention, the obstacle is not bounced outward in the vehicle width direction, and the obstacle can be reliably placed on the front hood to prevent the vehicle from being caught downward.

以下、本発明の自動車の車体前部構造の実施例を説明する。   Embodiments of the vehicle body front structure of the present invention will be described below.

以下、本発明の実施例１を説明する。
本実施例の自動車の車体前部構造は請求項１、２の発明に対応する。
図１は本発明の実施例１の自動車の車体前部構造を示す全体分解図、図２は実施例１のバンパアーマチュア付近を示す斜視図、図３は図２に第２衝撃吸収部材を固定したバンパアーマチュア付近を示す斜視図である。
図４は図３にさらに第１衝撃吸収部材を固定したバンパアーマチュア付近を示す斜視図、図５は図４のＳ５−Ｓ５線における側断面図、図６は図４のＳ６−Ｓ６線における側断面図、図７は図４のＳ７−Ｓ７線における断面図、図８は実施例１の自動車の車体前部構造の作用を説明する図である。 Embodiment 1 of the present invention will be described below.
The vehicle body front structure of the present embodiment corresponds to the inventions of claims 1 and 2.
FIG. 1 is an overall exploded view showing a front body structure of a vehicle according to a first embodiment of the present invention, FIG. 2 is a perspective view showing the vicinity of a bumper armature of the first embodiment, and FIG. It is a perspective view which shows the bumper armature vicinity which did.
4 is a perspective view showing the vicinity of the bumper armature in which the first shock absorbing member is further fixed to FIG. 3, FIG. 5 is a side sectional view taken along line S5-S5 in FIG. 4, and FIG. 6 is a side taken along line S6-S6 in FIG. FIG. 7 is a cross-sectional view taken along line S7-S7 in FIG. 4, and FIG.

図１に示すように、本実施例の自動車の車体前部構造は、ラジエータコアサポート１と、サイドメンバ２と、バンパステイ3,3と、バンパアーマチュア４と、第１衝撃吸収部材７と、第２衝撃吸収部材6,6と、突出部材８と、バンパフェイシア９を主要な構成としている。   As shown in FIG. 1, the vehicle body front structure of the present embodiment includes a radiator core support 1, side members 2, bumper stays 3 and 3, a bumper armature 4, a first shock absorbing member 7, 2 The shock absorbing members 6 and 6, the projecting member 8 and the bumper fascia 9 are the main components.

前記ラジエータコアサポート１は全体がポリプロピレンまたはガラス繊維強化樹脂などの樹脂で一体的に形成され、ラジエータコアサポートサイド1ａ,1aの左右両側にはサイドメンバ取付部1b,1bが形成されている。   The entire radiator core support 1 is integrally formed of a resin such as polypropylene or glass fiber reinforced resin, and side member mounting portions 1b and 1b are formed on the left and right sides of the radiator core support side 1a and 1a.

また、前記サイドメンバ取付部1b,1bは図外のボルトとナットでサイドメンバ2,2の前端部の２箇所に固定され、バンパステイ3,3の後端部は図外のボルトとナットでサイドメンバ2,2の前端部の４箇所にそれぞれ連結されている。   The side member mounting portions 1b and 1b are fixed to the front end portions of the side members 2 and 2 with bolts and nuts not shown, and the rear end portions of the bumper stays 3 and 3 are sided with bolts and nuts not shown. The members 2 and 2 are connected to the four front end portions, respectively.

前記バンパアーマチュア４は矩形断面形状を成して車幅方向に延在し、図外のボルトとナットで前記バンパステイ3,3の前端部の４箇所に連結されている。
図２に示すように、前記バンパアーマチュア４の両端部には、金属製のエンドプレート５が溶接固定され、該エンドプレート５は後述する支持面５ａ、５ｂが形成されている。
さらに、エンドプレート５は矩形断面形状のバンパアーマチュア４の両端部を塞ぐように設けられるため、これによりバンパアーマチュア４の剛性の向上に貢献している。 The bumper armature 4 has a rectangular cross-sectional shape and extends in the vehicle width direction, and is connected to four locations at the front end portions of the bumper stays 3, 3 by bolts and nuts not shown.
As shown in FIG. 2, metal end plates 5 are welded and fixed to both ends of the bumper armature 4, and the end plates 5 have support surfaces 5a and 5b described later.
Furthermore, since the end plate 5 is provided so as to close both ends of the bumper armature 4 having a rectangular cross-sectional shape, this contributes to the improvement of the rigidity of the bumper armature 4.

図３に示すように、前記エンドプレート５にはポリウレタン発泡体またはポリプロピレン発泡体等の発泡体で形成された第２衝撃吸収部材６が固定支持される。
具体的には、第２衝撃吸収部材６の後面は前記支持面５ａで支持され、第２衝撃吸収部材６の車幅方向外側の側面は前記支持面５ｂで支持されており、これにより第２衝撃吸収部材６はエンドプレート５によって後方側及び車幅方向外側への変位を規制されている。 As shown in FIG. 3, a second impact absorbing member 6 formed of a foam such as a polyurethane foam or a polypropylene foam is fixedly supported on the end plate 5.
Specifically, the rear surface of the second shock absorbing member 6 is supported by the support surface 5a, and the side surface on the outer side in the vehicle width direction of the second shock absorbing member 6 is supported by the support surface 5b. The shock absorbing member 6 is restricted by the end plate 5 from being displaced rearward and outward in the vehicle width direction.

図４に示すように、前記バンパアーマチュア４の前面にはポリウレタン発泡体またはポリプロピレン発泡体等の発泡体で形成された第１衝撃吸収部材７が固定される。   As shown in FIG. 4, a first impact absorbing member 7 formed of a foam such as a polyurethane foam or a polypropylene foam is fixed to the front surface of the bumper armature 4.

図５に示すように、前記第２衝撃吸収部材６の前面はバンパフェイシア９の内面に沿った形状に形成され、さらに、該第２衝撃吸収部材６の底面は図外のパーキングランプの取付けスペースを回避可能な長さで形成されている。
図６に示すように、前記第１衝撃吸収部材７の前面は前記第２衝撃吸収部材６と同様にバンパフェイシア９の内面に沿った形状に形成されている。
また、前記第１衝撃吸収部材７の車両前後方向の剛性は、発泡体の材料及び発泡密度等の設定により第２衝撃吸収部材６よりも低く形成されている。 As shown in FIG. 5, the front surface of the second shock absorbing member 6 is formed along the inner surface of the bumper fascia 9, and the bottom surface of the second shock absorbing member 6 is a space for installing a parking lamp (not shown). It is formed with a length that can be avoided.
As shown in FIG. 6, the front surface of the first shock absorbing member 7 is formed in a shape along the inner surface of the bumper fascia 9 in the same manner as the second shock absorbing member 6.
Further, the rigidity of the first shock absorbing member 7 in the vehicle front-rear direction is formed lower than that of the second shock absorbing member 6 depending on the setting of the foam material, the foam density, and the like.

さらに、突出部材８はバンパアーマチュア４のスポイラー部９ａ内に矩形断面形状を成して車幅方向に延在すると共に、図外のブラケットを介して車体側、例えばサイドメンバ２に固定されている。
なお、本実施例では突出部材８の前面に沿ってポリウレタン発泡体またはポリプロピレン発泡体等の発泡体で形成された第３衝撃吸収部材１０が設けられている。 Further, the projecting member 8 forms a rectangular cross-sectional shape in the spoiler portion 9a of the bumper armature 4 and extends in the vehicle width direction, and is fixed to the vehicle body side, for example, the side member 2 via a bracket (not shown). .
In the present embodiment, a third impact absorbing member 10 formed of a foam such as a polyurethane foam or a polypropylene foam is provided along the front surface of the protruding member 8.

また、図７に示すように、バンパフェイシア９の前端の接線と前後方向の成す角度αが所定の角度（例えば、６０°以下の角度）を有する点をＰとするとき、第２衝撃吸収部材６の前端のバンパフェイシア９との接触点が点Ｐよりも車幅方向外側に存在する位置にエンドプレート５が設けられている。   Further, as shown in FIG. 7, when the angle α formed between the tangent to the front end of the bumper fascia 9 and the front-rear direction has a predetermined angle (for example, an angle of 60 ° or less), the second shock absorbing member An end plate 5 is provided at a position where a contact point with the bumper fascia 9 at the front end of 6 exists outside the point P in the vehicle width direction.

さらに、本実施例では第２衝撃吸収部材６の車幅方向内側の側面は後方に車両中心に向かって傾斜状に形成されている。   Further, in the present embodiment, the side surface on the inner side in the vehicle width direction of the second shock absorbing member 6 is formed to be inclined rearward toward the vehicle center.

以下、本実施例１の自動車の車体前部構造の作用・効果を説明する。
このように構成された自動車の車体構造にあっては、障害物がバンパアーマチュア４の中央部から両端部にかけてオフセット衝突した際、先ず、バンパフェイシア９が潰れて後方に変位し、その衝撃は第１、２衝撃吸収部材７、６と突出部材８（第３衝撃吸収部材１０）に略同時に伝達される。 Hereinafter, the operation and effect of the vehicle body front structure of the automobile according to the first embodiment will be described.
In the vehicle body structure configured as described above, when the obstacle collides with the offset from the center portion of the bumper armature 4 to the both end portions, the bumper fascia 9 is first crushed and displaced rearward. 1 and 2 are transmitted substantially simultaneously to the impact absorbing members 7 and 6 and the protruding member 8 (third impact absorbing member 10).

そして、障害物は第１、２衝撃吸収部材７，６によって衝突時の衝撃を吸収されつつ、その下部において突出部材８で車両外方への回転力を与えられる。
この際、前述したように、第２衝撃吸収部材６の前後方向の剛性は第１衝撃吸収部材７よりも高く設定されているため、図８に示すように障害物に対して車幅方向内側への力（矢印Ａにて図示）が作用し、これにより、従来の発明のように障害物が車幅方向外側へ弾かれることがなく、該障害物を確実にフロントフード上に載せ上げて車両下方への巻き込みを防止できる。 The obstacle is absorbed by the first and second impact absorbing members 7 and 6 at the time of collision, and is given a rotational force outward of the vehicle by the projecting member 8 at the lower part thereof.
At this time, as described above, the rigidity in the front-rear direction of the second shock absorbing member 6 is set higher than that of the first shock absorbing member 7, and therefore, as shown in FIG. Force (illustrated by an arrow A) is applied, so that the obstacle is not flipped outward in the vehicle width direction as in the conventional invention, and the obstacle is securely put on the front hood. It is possible to prevent the vehicle from being caught downward.

また、エンドプレート５によって第２衝撃吸収部材６の車幅方向外側及び後方への変位が規制され、これにより第２衝撃吸収部材６は安定して障害物に車幅方向内側への力を付与することができる。なお、障害物が点Ｐより車幅方向外側に衝突した場合、障害物は外側に弾かれるが、その衝撃力は相対的に小さくなる。   Further, the end plate 5 restricts the displacement of the second shock absorbing member 6 toward the outside in the vehicle width direction and the rearward direction, whereby the second shock absorbing member 6 stably applies the force toward the inside in the vehicle width direction to the obstacle. can do. In addition, when an obstacle collides in the vehicle width direction outside from the point P, the obstacle is bounced outside, but the impact force becomes relatively small.

以下、本発明の実施例２を説明する。
本実施例の自動車の車体前部構造は請求項３の発明に対応する。
なお、本実施例の自動車の車体前部構造は前記実施例１で説明したエンドプレート及び突出部材の形状を変更し、さらに該突出部材の両端部をエンドプレートに結合したこと以外は前記実施例１と略同様であるため、同一の構成部材については同一の符号を付してその説明は省略する。 Embodiment 2 of the present invention will be described below.
The vehicle body front structure of the present embodiment corresponds to the invention of claim 3.
The vehicle body front structure of the present embodiment is different from the embodiment described above except that the shapes of the end plate and the projecting member described in the first embodiment are changed and both end portions of the projecting member are coupled to the end plate. Since it is substantially the same as 1, the same components are denoted by the same reference numerals and the description thereof is omitted.

図９は本発明の実施例２のバンパアーマチュア付近を示す斜視図、図１０は本実施例の第１吸収部材及び第２吸収部材を固定したバンパアーマチュア付近を示す斜視図、図１１は図１０のＳ１１−Ｓ１１線における側断面図、図１２はブラケットと突出部材の結合を示す斜視図である。   9 is a perspective view showing the vicinity of the bumper armature according to the second embodiment of the present invention, FIG. 10 is a perspective view showing the vicinity of the bumper armature to which the first absorbent member and the second absorbent member of the present embodiment are fixed, and FIG. FIG. 12 is a perspective view showing the coupling between the bracket and the protruding member.

図９〜１１に示すように、本実施例の自動車の車体前部構造では、エンドプレート２０の下方に水平な取付け面２０ｃが形成され、この取付け面２０ｃが後述する突出部材２１の両端部に図外のボルトとナット等の締結部材で固定されている。   As shown in FIGS. 9 to 11, in the vehicle body front structure of the automobile of this embodiment, a horizontal mounting surface 20 c is formed below the end plate 20, and this mounting surface 20 c is formed at both end portions of a protruding member 21 described later. It is fixed by fastening members such as bolts and nuts not shown.

前記突出部材２１は板状に形成されると共に、その先端がＬ字断面形状に形成され、これにより、前後方向における所定の剛性が得られるようになっている。   The protruding member 21 is formed in a plate shape, and its tip is formed in an L-shaped cross-section, whereby a predetermined rigidity in the front-rear direction is obtained.

さらに、前記突出部材２１の中央部にはバンパアーマチュア４の裏面に溶接固定された板状のブラケットＫ１に固定されている。   Further, a central portion of the protruding member 21 is fixed to a plate-like bracket K1 that is welded and fixed to the back surface of the bumper armature 4.

図１２（ａ）に示すように、前記ブラケットＫ１の下部には上方に突出したピンＢを有する水平な固定部２２が形成され、一方、前記突出部材２１には前記ピンＢが挿入される円孔２１ａ及び該円穴２１ａに連通した前後方向に長い長孔２１ｂが形成されており、突出部材２１の中央に後方への衝撃が伝達された際には、図１２（ｂ）に示すように、ピンＢが円孔２１ａから外れて長孔２１ｂに摺動し、突出部材２１の中央部が後方へ変位可能になっており、これにより固定点付近で過大な衝撃力を与えることなく突出部材２１の均等な衝撃吸収能力を発揮できるようになっている。なお、突出部材２１の両端部の固定点も同様の固定方法とすることにより、より均等な衝撃吸収能力を発揮できる。   As shown in FIG. 12A, a horizontal fixing portion 22 having a pin B protruding upward is formed in the lower portion of the bracket K1, while a circle in which the pin B is inserted into the protruding member 21 is formed. When the rearward impact is transmitted to the center of the projecting member 21, as shown in FIG. 12B, a hole 21a and a long hole 21b extending in the front-rear direction communicating with the circular hole 21a are formed. The pin B is detached from the circular hole 21a and slides into the long hole 21b, so that the central portion of the protruding member 21 can be displaced rearward, thereby preventing the protruding member from giving an excessive impact force near the fixed point. 21 uniform shock absorbing ability can be exhibited. In addition, by using the same fixing method for the fixing points at both ends of the projecting member 21, more uniform shock absorbing ability can be exhibited.

以下、本実施例２の自動車の車体前部構造の作用・効果について説明する。
このように構成された自動車の車体構造にあっては、障害物がバンパアーマチュア４の中央部から両端部にかけてオフセット衝突した際、先ず、バンパフェイシア９が潰れて後方に変位し、その衝撃は第１、２衝撃吸収部材７、６と突出部材２１に略同時に伝達される。 Hereinafter, the operation and effect of the vehicle body front structure of the automobile according to the second embodiment will be described.
In the vehicle body structure configured as described above, when the obstacle collides with the offset from the center portion of the bumper armature 4 to the both end portions, the bumper fascia 9 is first crushed and displaced rearward. 1 and 2 are transmitted substantially simultaneously to the impact absorbing members 7 and 6 and the protruding member 21.

そして、障害物は第１、２衝撃吸収部材７，６によって衝突時の衝撃を吸収されつつ、その下部において突出部材２１で車両外方への回転力を与えられる。   Then, the obstacle is absorbed by the first and second impact absorbing members 7 and 6 while the impact at the time of the collision is absorbed, and the projecting member 21 provides a rotational force to the outside of the vehicle at the lower part thereof.

この際、第２衝撃吸収部材６の前後方向の剛性は第１衝撃吸収部材７よりも高く設定されているため、障害物に対して車幅方向内側への力が作用し、これにより、従来の発明のように障害物が車幅方向外側へ弾かれることがなく、該障害物を確実にフロントフード上に載せ上げて車両下方への巻き込みを防止できる。   At this time, since the rigidity in the front-rear direction of the second shock absorbing member 6 is set higher than that of the first shock absorbing member 7, a force inward in the vehicle width direction acts on the obstacle. As in the invention, the obstacle is not bounced outward in the vehicle width direction, and the obstacle can be reliably placed on the front hood to prevent the vehicle from being caught downward.

また、突出部材２１の固定部材としてエンドプレート２０を兼用できる上、該突出部材２１に伝達された衝撃力がサイドメンバ４に直接伝達されて、余計な衝撃力が車体側に伝達されたり、修理費用が嵩むのを防止できる。   Further, the end plate 20 can also be used as a fixing member for the protruding member 21, and the impact force transmitted to the protruding member 21 is directly transmitted to the side member 4, so that extra impact force is transmitted to the vehicle body side or repair. It is possible to prevent the cost from increasing.

以下、本発明の実施例３を説明する。
本実施例の自動車の車体前部構造は請求項４の発明に対応する。
なお、本実施例の自動車の車体前部構造は前記実施例１で説明した突出部材８を省略して第２衝撃吸収部材6,6を第１衝撃吸収部材７の下面及びバンパアーマチュア４の下面に沿って配置された連結部３０で結合したこと以外は前記実施例１と略同様であるため、同一の構成部材については同一の符号を付してその説明は省略する。 Embodiment 3 of the present invention will be described below.
The vehicle body front structure of the present embodiment corresponds to the invention of claim 4.
In the vehicle body front structure of the present embodiment, the protruding member 8 described in the first embodiment is omitted, and the second shock absorbing members 6 and 6 are replaced with the lower surface of the first shock absorbing member 7 and the lower surface of the bumper armature 4. Since it is substantially the same as that of the said Example 1 except having couple | bonded with the connection part 30 arrange | positioned along, it attaches | subjects the same code | symbol about the same structural member, and abbreviate | omits the description.

図１３は本発明の実施例３のバンパアーマチュア付近を示す斜視図、図１４は図１３のＳ１４−Ｓ１４線における側断面図である。   FIG. 13 is a perspective view showing the vicinity of the bumper armature according to the third embodiment of the present invention, and FIG. 14 is a side sectional view taken along line S14-S14 in FIG.

図１３、１４に示すように、本実施例の自動車の車体前部構造では、バンパアーマチュア４の両端部に設けられた第２衝撃吸収部材6,6と、バンパアーマチュア４の下面及び第１衝撃吸収部材７の下面に沿って配置された連結部３０が一体的に形成されている。   As shown in FIGS. 13 and 14, in the vehicle body front structure of the automobile of this embodiment, the second shock absorbing members 6, 6 provided at both ends of the bumper armature 4, the lower surface of the bumper armature 4, and the first shock are provided. A connecting portion 30 disposed along the lower surface of the absorbing member 7 is integrally formed.

また、前記連結部３０の車両前後方向の剛性は第２衝撃吸収部材６と同様に第１衝撃吸収部材７よりも高く形成され、その後面及び後方底面はバンパアーマチュア４に溶接固定された板状部材３１によって固定されている。
さらに、本実施例では前記実施例１で説明した突出部材８が省略されている。 Further, the rigidity of the connecting portion 30 in the vehicle front-rear direction is formed higher than that of the first shock absorbing member 7 like the second shock absorbing member 6, and the rear surface and the rear bottom surface are plate-shaped fixed to the bumper armature 4 by welding. It is fixed by the member 31.
Further, in this embodiment, the protruding member 8 described in the first embodiment is omitted.

以下、本実施例３の自動車の車体前部構造の作用・効果を説明する。
このように構成された自動車の車体構造にあっては、障害物がバンパアーマチュア４の中央部から両端部にかけてオフセット衝突した際、先ず、バンパフェイシア９が潰れて後方に変位し、その衝撃は第１、２衝撃吸収部材７、６と連結部３０に略同時に伝達される。 Hereinafter, the operation and effect of the vehicle body front structure of the automobile according to the third embodiment will be described.
In the vehicle body structure configured as described above, when the obstacle collides with the offset from the center portion of the bumper armature 4 to the both end portions, the bumper fascia 9 is first crushed and displaced rearward. 1 and 2 are transmitted substantially simultaneously to the shock absorbing members 7 and 6 and the connecting portion 30.

そして、障害物は第１、２衝撃吸収部材７，６によって衝突時の衝撃を吸収されつつ、その下部において連結部３０で車両外方への回転力を与えられる。
即ち、第２衝撃吸収部材６の前後方向の剛性は第１衝撃吸収部材７よりも高く設定されているため、図８で説明したように障害物に対して車幅方向内側への力が作用しつつ、連結部３０で車両外方への回転力を付与することができ、よりコンパクトな構成で障害物を確実にフロントフード上に載せ上げて車両下方への巻き込みを防止できる。 Then, the obstacle is absorbed by the first and second impact absorbing members 7 and 6 while the impact at the time of the collision is absorbed, and a rotational force is given to the outside of the vehicle by the connecting portion 30 in the lower part thereof.
That is, since the rigidity in the front-rear direction of the second shock absorbing member 6 is set higher than that of the first shock absorbing member 7, a force inward in the vehicle width acts on the obstacle as described in FIG. However, it is possible to apply a rotational force to the outside of the vehicle by the connecting portion 30, and it is possible to prevent the obstacle from being caught in the lower part of the vehicle by reliably mounting the obstacle on the front hood with a more compact configuration.

以下、本発明の実施例４を説明する。
なお、本実施例の自動車の車体前部構造は前記実施例１で説明した突出部材８を省略して板状部材４０を第１衝撃吸収部材７の下面に沿って配置したこと以外は前記実施例１と略同様であるため、同一の構成部材については同一の符号を付してその説明は省略する。 Embodiment 4 of the present invention will be described below.
The vehicle body front structure of the present embodiment is the same as that described above except that the protruding member 8 described in the first embodiment is omitted and the plate-like member 40 is disposed along the lower surface of the first shock absorbing member 7. Since it is substantially the same as Example 1, the same components are denoted by the same reference numerals and description thereof is omitted.

図１５は本発明の実施例４のバンパアーマチュア付近を示す斜視図、図１６は第１吸収部材及び第２吸収部材を固定したバンパアーマチュア付近を示す斜視図、図１７は図１６のＳ１７−Ｓ１７線における側断面図である。   15 is a perspective view showing the vicinity of the bumper armature according to the fourth embodiment of the present invention, FIG. 16 is a perspective view showing the vicinity of the bumper armature to which the first absorbent member and the second absorbent member are fixed, and FIG. 17 is S17-S17 in FIG. It is a sectional side view in a line.

図１５〜１７に示すように、本実施例の自動車の車体前部構造では、第１衝撃吸収部材７の下面に沿って金属製の板状部材４０が配置されている。
具体的には、板状部材４０はコ字状断面形状を成して車幅方向に延在し、その先端側は上方に曲折して第１衝撃吸収部材７の底面に当接し、その後端側は上方に曲折してバンパアーマチュア４との間に部分的に介装された第４衝撃吸収部材４１に当接した状態となっており、これにより、後方への衝撃が伝達された際に前後方向に所定の剛性が得られるようになっている。 As shown in FIGS. 15 to 17, a metal plate-like member 40 is disposed along the lower surface of the first shock absorbing member 7 in the vehicle body front part structure of the automobile of this embodiment.
Specifically, the plate-like member 40 has a U-shaped cross-sectional shape and extends in the vehicle width direction, and its front end is bent upward and comes into contact with the bottom surface of the first shock absorbing member 7, and its rear end The side is bent upward and is in contact with a fourth shock absorbing member 41 partially interposed between the bumper armature 4 and the rear shock when it is transmitted. A predetermined rigidity can be obtained in the front-rear direction.

また、前記板状部材４０の両端部はクリップＣ等の締結部材でバンパフェイシア９に固定され、中央部はバンパアーマチュア４の裏面に固定されたブラケットＫ２に固定されている。   Further, both end portions of the plate-like member 40 are fixed to the bumper fascia 9 by fastening members such as clips C, and the center portion is fixed to a bracket K2 fixed to the back surface of the bumper armature 4.

なお、前記板状部材４０とブラケットＫ２との結合は、前記実施例２で説明した突出部材２１とブラケットＫ１との結合と同様にブラケットＫ２に後方へ変位可能に結合されている。
また、前記板状部材４０の前後方向の剛性は第２衝撃吸収部材６と同様に第１衝撃吸収部材７よりも高く形成されている。 The plate member 40 and the bracket K2 are coupled to the bracket K2 so as to be displaceable rearward in the same manner as the projection member 21 and the bracket K1 described in the second embodiment.
Further, the longitudinal rigidity of the plate-like member 40 is formed higher than that of the first shock absorbing member 7 like the second shock absorbing member 6.

以下、本実施例４の自動車の車体前部構造の作用・効果を説明する。
このように構成された自動車の車体構造にあっては、障害物がバンパアーマチュア４の中央部から両端部にかけてオフセット衝突した際、先ず、バンパフェイシア９が潰れて後方に変位し、その衝撃は第１、２衝撃吸収部材７、６と板状部材４０に略同時に伝達される。 Hereinafter, the operation and effect of the vehicle body front structure of the automobile of the fourth embodiment will be described.
In the vehicle body structure configured as described above, when the obstacle collides with the offset from the center portion of the bumper armature 4 to the both end portions, the bumper fascia 9 is first crushed and displaced rearward. 1 and 2 are transmitted substantially simultaneously to the shock absorbing members 7 and 6 and the plate-like member 40.

そして、障害物は第１、２衝撃吸収部材７，６によって衝突時の衝撃を吸収されつつ、その下部において板状部材４０で車両外方への回転力を与えられる。   The obstacle is absorbed by the first and second impact absorbing members 7 and 6 while the impact at the time of the collision is absorbed, and a rotational force is given to the outside of the vehicle by the plate-like member 40 in the lower part thereof.

即ち、第２衝撃吸収部材６の前後方向の剛性は第１衝撃吸収部材７よりも高く設定されているため、図８で説明したように障害物に対して車幅方向内側への力が作用しつつ、板状部材４０で車両外方への回転力を付与することができ、よりコンパクトな構成で障害物を確実にフロントフード上に載せ上げて車両下方への巻き込みを防止できる。   That is, since the rigidity in the front-rear direction of the second shock absorbing member 6 is set higher than that of the first shock absorbing member 7, a force inward in the vehicle width acts on the obstacle as described in FIG. However, the plate-like member 40 can apply a rotational force to the outside of the vehicle, and the obstacle can be reliably placed on the front hood with a more compact configuration to prevent the vehicle from being caught downward.

以上、本発明の実施例を説明してきたが、本発明の具体的構成は本実施例に限定されるものではなく、発明の要旨を逸脱しない範囲の設計変更などがあっても本発明に含まれる。   Although the embodiments of the present invention have been described above, the specific configuration of the present invention is not limited to the embodiments, and the present invention includes any design changes that do not depart from the gist of the invention. It is.

例えば、図１８に示すように、バンパフェイシアの形状やパーキングランプなど取付けレイアウトによって第２衝撃吸収部材6,6の形状は適宜変更できる。   For example, as shown in FIG. 18, the shape of the second shock absorbing members 6 and 6 can be changed as appropriate depending on the shape of the bumper fascia and the mounting layout such as a parking lamp.

本発明の実施例１の自動車の車体前部構造を示す全体分解図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall exploded view showing a vehicle body front structure of an automobile according to a first embodiment of the present invention. 実施例１のバンパアーマチュア付近を示す斜視図である。It is a perspective view which shows the bumper armature vicinity of Example 1. FIG. 第２衝撃吸収部材を固定したバンパアーマチュア付近を示す斜視図である。It is a perspective view which shows the bumper armature vicinity which fixed the 2nd shock absorption member. 第１衝撃吸収部材を固定したバンパアーマチュア付近を示す斜視図である。It is a perspective view which shows the bumper armature vicinity which fixed the 1st shock absorption member. 図４のＳ５−Ｓ５線における側断面図である。It is a sectional side view in the S5-S5 line of FIG. 図４のＳ６−Ｓ６線における側断面図である。It is a sectional side view in the S6-S6 line of FIG. 図４のＳ７−Ｓ７線における断面図である。It is sectional drawing in the S7-S7 line | wire of FIG. 本発明の実施例１の自動車の車体前部構造の作用を説明する図である。It is a figure explaining the effect | action of the vehicle body front part structure of the motor vehicle of Example 1 of this invention. 実施例２のバンパアーマチュア付近を示す斜視図である。It is a perspective view which shows the bumper armature vicinity of Example 2. FIG. 本実施例の第１吸収部材及び第２吸収部材を固定したバンパアーマチュア付近を示す斜視図である。It is a perspective view which shows the bumper armature vicinity which fixed the 1st absorption member and the 2nd absorption member of a present Example. 図１０のＳ１１−Ｓ１１線における側断面図である。It is a sectional side view in the S11-S11 line | wire of FIG. ブラケットと突出部材の結合を示す側斜視図である。It is a side perspective view which shows the coupling | bonding of a bracket and a protrusion member. 本発明の実施例３のバンパアーマチュア付近を示す斜視図である。It is a perspective view which shows the bumper armature vicinity of Example 3 of this invention. 図１３のＳ１４−Ｓ１４線における側断面図である。It is a sectional side view in the S14-S14 line | wire of FIG. 実施例４のバンパアーマチュア付近を示す側斜視図である。It is a side perspective view which shows the bumper armature vicinity of Example 4. FIG. 実施例４の第１吸収部材及び第２吸収部材を固定したバンパアーマチュア付近を示す斜視図である。It is a perspective view which shows the bumper armature vicinity which fixed the 1st absorption member and 2nd absorption member of Example 4. FIG. 図１６のＳ１７−Ｓ１７線における側断面図である。It is a sectional side view in the S17-S17 line | wire of FIG. その他の実施例のバンパアーマチュア付近を示す側断面図である。It is a sectional side view which shows the bumper armature vicinity of the other Example.

符号の説明Explanation of symbols

Ｃ クリップ
Ｋ１、Ｋ２ ブラケット
Ｂ ピン
１ ラジエータコアサポート
１ａ ラジエータコアサポートサイド
１ｂ サイドメンバ取付部
２ サイドメンバ
３ バンパステイ
４ バンパアーマチュア
５ エンドプレート
５ａ、５ｂ 支持面
６ 第２衝撃吸収部材
７ 第１衝撃吸収部材
８、２１ 突出部材
９ バンパフェイシア
９ａ スポイラー部
１０ 第３衝撃吸収部材
２０ エンドプレート
２１ａ 円孔
２１ｂ 長孔
２２ 固定部
３０ 連結部
４０ 板状部材
４１ 第４衝撃吸収部材 C Clip K1, K2 Bracket B Pin 1 Radiator core support 1a Radiator core support side 1b Side member mounting portion 2 Side member 3 Bumper stay 4 Bumper armature 5 End plate 5a, 5b Support surface 6 Second impact absorbing member 7 First impact absorbing member 8, 21 Projecting member 9 Bumper fascia 9a Spoiler part 10 Third shock absorbing member 20 End plate 21a Circular hole 21b Long hole 22 Fixed part 30 Connecting part 40 Plate-like member 41 Fourth shock absorbing member

Claims (5)

車幅方向に延在し、且つ、両端部に向かうに従って後方へ屈曲したバンパアーマチュアと、
前記バンパアーマチュアの下方に設けられ、且つ、車幅方向に延在する突出部材と、
を備えた自動車の車体前部構造において、
前記バンパアーマチュアの両端部を除く前面に沿って第１衝撃吸収部材を設け、
前記バンパアーマチュアの両端部の少なくとも前面に沿って第２衝撃吸収部材を設け、
前記第２衝撃吸収部材の前後方向の剛性を第１衝撃吸収部材よりも高く設定したことを特徴とする自動車の車体前部構造。 A bumper armature that extends in the vehicle width direction and bends backward toward the both ends,
A projecting member provided below the bumper armature and extending in the vehicle width direction;
In the front body structure of an automobile equipped with
A first shock absorbing member is provided along the front surface excluding both ends of the bumper armature,
A second shock absorbing member is provided along at least the front surface of both ends of the bumper armature;
A vehicle body front structure of an automobile, wherein the rigidity in the front-rear direction of the second shock absorbing member is set higher than that of the first shock absorbing member. 請求項１記載の自動車の車体前部構造において、
前記バンパアーマチュアの両端部に、第２衝撃吸収部材の車幅方向外側及び後方側への変位を規制するエンドプレートを固定したことを特徴とする自動車の車体前部構造。 In the vehicle body front structure according to claim 1,
An automobile body front structure, wherein end plates for restricting displacement of the second shock absorbing member in the vehicle width direction outer side and the rear side are fixed to both ends of the bumper armature. 請求項１または２記載の自動車の車体前部構造において、
前記突出部材の両端部を両エンドプレートに支持固定したことを特徴とする自動車の車体前部構造。 The vehicle body front part structure according to claim 1 or 2,
A vehicle body front structure, wherein both ends of the projecting member are supported and fixed to both end plates. 車幅方向に延在し、且つ、両端部に向かうに従って後方へ屈曲したバンパアーマチュアを備えた自動車の車体前部構造において、
前記バンパアーマチュアの両端部を除く前面に沿って第１衝撃吸収部材を設け、
前記バンパアーマチュアの両端部の少なくとも前面に沿って第２衝撃吸収部材を設け、
前記両第２衝撃吸収部材と、第１衝撃吸収部材の下面及びバンパアーマチュアの下面に沿う連結部とを一体的に形成し、
前記連結部及び第２衝撃吸収部材の前後方向の剛性を第１衝撃吸収部材よりも高く設定したことを特徴とする自動車の車体前部構造。 In the vehicle body front structure with a bumper armature that extends in the vehicle width direction and bends backward toward the both ends.
A first shock absorbing member is provided along the front surface excluding both ends of the bumper armature,
A second shock absorbing member is provided along at least the front surface of both ends of the bumper armature;
Forming both the second shock absorbing member and the connecting portion along the lower surface of the first shock absorbing member and the lower surface of the bumper armature;
A vehicle body front structure of an automobile, wherein rigidity in the front-rear direction of the connecting portion and the second shock absorbing member is set higher than that of the first shock absorbing member. 車幅方向に延在し、且つ、両端部に向かうに従って後方へ屈曲したバンパアーマチュアを備えた自動車の車体前部構造において、
前記バンパアーマチュアの両端部を除く前面に沿って第１衝撃吸収部材を設け、
前記バンパアーマチュアの両端部の少なくとも前面に沿って第２衝撃吸収部材を設け、
前記第１衝撃吸収部材の下面及びバンパアーマチュアの下面に沿って板状部材を設け、
前記板状部材及び第２衝撃吸収部材の前後方向の剛性を第１衝撃吸収部材よりも高く設定したことを特徴とする自動車の車体前部構造。 In the vehicle body front structure with a bumper armature that extends in the vehicle width direction and bends backward toward the both ends.
A first shock absorbing member is provided along the front surface excluding both ends of the bumper armature,
A second shock absorbing member is provided along at least the front surface of both ends of the bumper armature;
A plate-like member is provided along the lower surface of the first shock absorbing member and the lower surface of the bumper armature,
A vehicle body front structure of an automobile, wherein rigidity in the front-rear direction of the plate-like member and the second shock absorbing member is set higher than that of the first shock absorbing member.
JP2003389850A 2003-11-19 2003-11-19 Car body front structure for automobile Pending JP2005145394A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009241688A (en) * 2008-03-31 2009-10-22 Kobe Steel Ltd Bumper reinforcement
KR101483324B1 (en) 2007-12-21 2015-01-15 사빅 글로벌 테크놀러지스 비.브이. Corner energy absorber and bumper system
JP2018095188A (en) * 2016-12-16 2018-06-21 スズキ株式会社 Vehicle front structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101483324B1 (en) 2007-12-21 2015-01-15 사빅 글로벌 테크놀러지스 비.브이. Corner energy absorber and bumper system
JP2009241688A (en) * 2008-03-31 2009-10-22 Kobe Steel Ltd Bumper reinforcement
JP2018095188A (en) * 2016-12-16 2018-06-21 スズキ株式会社 Vehicle front structure

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