JP6070393B2 - Vehicle front structure - Google Patents

Vehicle front structure Download PDF

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Publication number
JP6070393B2
JP6070393B2 JP2013097251A JP2013097251A JP6070393B2 JP 6070393 B2 JP6070393 B2 JP 6070393B2 JP 2013097251 A JP2013097251 A JP 2013097251A JP 2013097251 A JP2013097251 A JP 2013097251A JP 6070393 B2 JP6070393 B2 JP 6070393B2
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vehicle
absorber
front bumper
structural member
bumper
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JP2014218113A (en
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崇 荒木
崇 荒木
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Suzuki Motor Co Ltd
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Suzuki Motor Co Ltd
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Priority to JP2013097251A priority Critical patent/JP6070393B2/en
Priority to CN201410190576.9A priority patent/CN104139802B/en
Priority to DE102014208560.8A priority patent/DE102014208560B4/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
    • B60R19/12—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement vertically spaced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Description

本発明は、車両の前面を構成するフロントバンパと、フロントバンパの背面側において車幅方向に延びる横構造部材と、その横構造部材の上部に車幅方向にわたって取り付けられるアブソーバとを含む車両前部構造に関するものである。   The present invention includes a front bumper that includes a front bumper that constitutes a front surface of a vehicle, a lateral structural member that extends in the vehicle width direction on the rear side of the front bumper, and an absorber that is attached to the upper portion of the lateral structural member across the vehicle width direction. Concerning structure.

車両前部では、歩行者、特に歩行者の大腿部保護を目的として、意匠部品であるフロントバンパ（バンパカバーと称されることもある）の内側に、衝撃吸収材（以下、アブソーバと称する）を設定することがある（例えば特許文献１）。車両の前面衝突時に、アブソーバに亀裂が入ったり、アブソーバが変形したりすることで、衝突時の荷重が緩和され、車両に接触した歩行者の大腿部にかかる負荷が軽減される。   In the front part of the vehicle, a shock absorber (hereinafter referred to as an absorber) is provided inside a front bumper (also referred to as a bumper cover) which is a design part for the purpose of protecting the thigh of a pedestrian, particularly a pedestrian. ) May be set (for example, Patent Document 1). At the time of a frontal collision of the vehicle, the absorber is cracked or the absorber is deformed, so that the load at the time of the collision is alleviated and the load applied to the thigh of the pedestrian in contact with the vehicle is reduced.

特開２００６−１９３０７８号公報JP 2006-193078 A

しかしながら、特許文献１のように、フロントバンパと、アブソーバが取り付けられる構造部材（特許文献１ではラジエータサポートアッパ）との間隔が狭いと、アブソーバが突っ張った状態となる。すると、歩行者との接触時にアブソーバが変形しづらくなり、荷重を吸収する効果（荷重吸収効果と称する）、すなわち歩行者への負荷を軽減する効果が十分に発揮できなくなるおそれがある。故に、特許文献１の技術にはいまだ改善の余地がある。   However, as in Patent Document 1, when the distance between the front bumper and the structural member to which the absorber is attached (the radiator support upper in Patent Document 1) is narrow, the absorber is stretched. Then, it is difficult for the absorber to be deformed at the time of contact with the pedestrian, and there is a possibility that the effect of absorbing the load (referred to as the load absorption effect), that is, the effect of reducing the load on the pedestrian cannot be sufficiently exhibited. Therefore, there is still room for improvement in the technique of Patent Document 1.

本発明は、このような課題に鑑み、アブソーバを好適に変形させることができ、それによる荷重吸収効果を高めることが可能な車両前部構造を提供することを目的としている。   In view of such a problem, an object of the present invention is to provide a vehicle front structure capable of suitably deforming an absorber and thereby enhancing a load absorption effect.

上記課題を解決するために、本発明にかかる車両前部構造の代表的な構成は、車両の前面を構成し車両後方へ行くほど上昇するように傾斜した意匠面を有するフロントバンパと、フロントバンパの背面側において車幅方向に延びる横構造部材と、横構造部材の上部に車幅方向にわたって取り付けられるアブソーバとを含む車両前部構造であって、アブソーバは、フロントバンパの意匠面の裏面に沿うように延びる前面部と、前面部の後端から下降しながら後方に延び、下端が横構造部材の上部に接合される背面部とを備え、アブソーバの下縁は、車両側方から見て上方に凸になるように湾曲または屈曲していて、湾曲または屈曲の頂点は、車両前後方向においてフロントバンパの意匠面の後端の下方に位置することを特徴とする。   In order to solve the above problems, a typical configuration of a vehicle front structure according to the present invention includes a front bumper having a design surface that is inclined so as to form a front surface of a vehicle and rise toward the rear of the vehicle, and a front bumper. The vehicle front part structure includes a lateral structural member extending in the vehicle width direction on the rear side of the vehicle and an absorber attached to an upper portion of the lateral structural member over the vehicle width direction, the absorber being along the back surface of the design surface of the front bumper And a rear part extending downward while descending from the rear end of the front part and having a lower end joined to the upper part of the lateral structural member, and the lower edge of the absorber is upward when viewed from the side of the vehicle It is curved or bent so as to be convex, and the vertex of the curve or bending is located below the rear end of the design surface of the front bumper in the vehicle longitudinal direction.

上記構成によれば、歩行者が車両前方からフロントバンパに接触した際、接触時の荷重を吸収しながら、湾曲または屈曲している頂点付近（以下、単に頂点と称する）、すなわちフロントバンパの意匠面の後端近傍の下方を基点としてアブソーバの前面部が下方にしなる。そして、そこを基点として前面部が下方に回転するように変形（移動）することにより、更に荷重が吸収される。このように、アブソーバのしなりおよび変形の両方によって荷重を吸収可能であるため、荷重吸収効果が高まり、ひいては歩行者への負荷が一層軽減される。またアブソーバの前面部がフロントバンパの意匠面の裏面に沿うように延びていることで、通常時にフロントバンパに荷重がかかった際に、その荷重を前面部で受け止めることができる。したがって、上記構成によれば、通常時に受けた荷重によるフロントバンパのベカつきを抑制することも可能である。   According to the above configuration, when a pedestrian contacts the front bumper from the front of the vehicle, while absorbing the load at the time of contact, the vicinity of the apex that is curved or bent (hereinafter simply referred to as apex), that is, the design of the front bumper The front part of the absorber is located downward with the lower part near the rear end of the surface as a base point. Then, the load is further absorbed by deforming (moving) so that the front surface portion rotates downward from the base point. As described above, since the load can be absorbed by both the bending and deformation of the absorber, the load absorbing effect is enhanced, and the load on the pedestrian is further reduced. Further, since the front portion of the absorber extends along the back surface of the design surface of the front bumper, when the load is applied to the front bumper during normal times, the load can be received by the front portion. Therefore, according to the above configuration, it is also possible to suppress stickiness of the front bumper due to a load received during normal operation.

なお、上記および以下の説明において、フロントバンパの意匠面の後端の下方とは、意匠面の後端の厳密な鉛直下方のみをさすものではなく、実質的に下方にあればよい。すなわち、フロントバンパの意匠面の後端の下方とは、意匠面の後端近傍の下方をさすものとする。   In the above and the following description, the lower part of the rear end of the design surface of the front bumper does not indicate only the strict vertical lower part of the rear end of the design surface, but may be substantially lower. That is, the lower side of the rear end of the design surface of the front bumper refers to the lower side near the rear end of the design surface.

上記アブソーバは、前面部の下面から背面部の前面にわたって立設される縦リブを更に備え、下縁は縦リブの下縁であるとよい。かかる構成によれば、接触時の荷重を吸収しながら、縦リブの湾曲または屈曲している頂点付近（以下、単に頂点と称する）が撓むことで、フロントバンパの意匠面の後端近傍の下方を基点としてアブソーバの前面部が下方にしなる。したがって、上記と同様に高い荷重吸収効果を得ることができる。またリブを設けることで、その厚みや数によってアブソーバの荷重吸収効果を調節することも可能となる。   The absorber may further include a vertical rib erected from the lower surface of the front surface portion to the front surface of the rear surface portion, and the lower edge may be the lower edge of the vertical rib. According to such a configuration, the vicinity of the rear end of the design surface of the front bumper is bent by bending the vicinity of the curved or bent vertex of the vertical rib (hereinafter simply referred to as the vertex) while absorbing the load at the time of contact. The front part of the absorber is located downward from the bottom. Therefore, a high load absorption effect can be obtained as described above. Further, by providing the ribs, it is possible to adjust the load absorbing effect of the absorber according to the thickness and number of the ribs.

上記アブソーバの背面部の下端は、横構造部材の上部に面接触しているとよい。かかる構成によれば、アブソーバと横構造部材との接合箇所において曲げモーメント（回転モーメント）に対する保持力（抵抗力）を高めることができる。したがって、アブソーバ全体を回転させるような荷重がかかっても、横構造部材がアブソーバを好適に支持することができる。このため、回転モーメント（荷重）によって、フロントバンパの意匠面の後端近傍より後方においてアブソーバがしなってしまうことがなく、上述した効果を確実に得ることが可能となる。   The lower end of the rear part of the absorber may be in surface contact with the upper part of the horizontal structural member. According to this configuration, the holding force (resistance force) against the bending moment (rotational moment) can be increased at the joint portion between the absorber and the lateral structural member. Therefore, even if the load which rotates the whole absorber is applied, the horizontal structure member can support an absorber suitably. For this reason, the above-mentioned effect can be obtained with certainty without causing the absorber to be broken behind the vicinity of the rear end of the design surface of the front bumper due to the rotational moment (load).

上記縦リブの車両高さ方向の寸法は、フロントバンパの意匠面の前端から後端までの間ではフロントバンパの意匠面の後端の下方において最も大きいとよい。これにより、しなりの基点であるフロントバンパの意匠面の後端近傍の下方における縦リブの強度を高めることができ、上述した効果をより好適に得ることが可能となる。   The dimension of the vertical rib in the vehicle height direction may be the largest below the rear end of the design surface of the front bumper between the front end and the rear end of the design surface of the front bumper. Thereby, the intensity | strength of the vertical rib in the downward vicinity of the rear end vicinity of the design surface of the front bumper which is a bend base point can be raised, and it becomes possible to acquire the effect mentioned above more suitably.

上記アブソーバは、フロントバンパの意匠面の後端の下方において前面部の下面から立設され車幅方向に延びる横リブを更に有するとよい。これにより、しなりの基点近傍の縦リブが横リブによって補強されるため、縦リブの強度向上、ひいては上述した効果を一層高めることが可能となる。   The absorber may further include a lateral rib that is erected from the lower surface of the front portion below the rear end of the design surface of the front bumper and extends in the vehicle width direction. Thereby, since the vertical rib in the vicinity of the bent base point is reinforced by the horizontal rib, it is possible to improve the strength of the vertical rib and further enhance the above-described effects.

上記縦リブは、背面部の前面から立設され横構造部材の上部の前端まで延びている領域を含むとよい。これにより、アブソーバの前面部と横構造部材との間に延びる背面部の強度を高めることができる。したがって、横構造部材の上方に配置される部材、例えばフロントフードに荷重がかかった場合であっても、背面部の形状が強固に保たれるため、上述した効果をより確実に得ることが可能となる。   The vertical rib may include a region standing from the front surface of the back surface portion and extending to the front end of the upper portion of the horizontal structural member. Thereby, the intensity | strength of the back surface part extended between the front part of an absorber and a horizontal structure member can be raised. Therefore, even when a load is applied to a member disposed above the horizontal structural member, for example, the front hood, the shape of the back surface portion is firmly maintained, so that the above-described effects can be obtained more reliably. It becomes.

本発明によれば、アブソーバを好適に変形させることができ、それによる衝撃吸収効果を高めることが可能な車両前部構造を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, an absorber can be deform | transformed suitably and the vehicle front part structure which can improve the impact absorption effect by it can be provided.

本実施形態にかかる車両前部構造の全体斜視図である。It is a whole perspective view of the vehicle front part structure concerning this embodiment. 図１の車両前部構造の内部構造の全体斜視図である。It is a whole perspective view of the internal structure of the vehicle front part structure of FIG. 図１（ｂ）の断面図である。It is sectional drawing of FIG.1 (b). 本実施形態にかかるアブソーバの背面図である。It is a rear view of the absorber concerning this embodiment.

以下に添付図面を参照しながら、本発明の好適な実施形態について詳細に説明する。かかる実施形態に示す寸法、材料、その他具体的な数値などは、発明の理解を容易とするための例示に過ぎず、特に断る場合を除き、本発明を限定するものではない。なお、本明細書及び図面において、実質的に同一の機能、構成を有する要素については、同一の符号を付することにより重複説明を省略し、また本発明に直接関係のない要素は図示を省略する。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

図１は、本実施形態にかかる車両前部構造１００の全体斜視図であり、図１（ａ）は車両前部構造１００の外観斜視図であり、図１（ｂ）は図１（ａ）のフロントフード１０２およびフロントバンパ１１０を透過させた状態の車両前部構造１００を図示している（フロントフード１０２およびフロントバンパ１１０は二点鎖線にて図示）。図２は、図１の車両前部構造１００の内部構造の全体斜視図であり、図２（ａ）は本実施形態の横構造部材であるフードロックメンバ１２０にアブソーバ１３０が取り付けられている状態を、図２（ｂ）はフードロックメンバ１２０からアブソーバ１３０を取り外した状態を図示している。なお、本実施形態では、横構造部材としてフードロックメンバ１２０を例示するが、これに限定するものではなく、フロントバンパ１１０の背面側において車幅方向に延びる部材であれば他の部材であってもよい。   FIG. 1 is an overall perspective view of a vehicle front structure 100 according to the present embodiment, FIG. 1 (a) is an external perspective view of the vehicle front structure 100, and FIG. 1 (b) is FIG. 1 (a). The vehicle front part structure 100 in which the front hood 102 and the front bumper 110 are permeated is shown (the front hood 102 and the front bumper 110 are shown by a two-dot chain line). FIG. 2 is an overall perspective view of the internal structure of the vehicle front structure 100 of FIG. 1, and FIG. 2 (a) is a state where the absorber 130 is attached to the hood lock member 120 which is a lateral structure member of the present embodiment. FIG. 2B shows a state where the absorber 130 is removed from the hood lock member 120. In the present embodiment, the hood lock member 120 is illustrated as a horizontal structural member, but the present invention is not limited to this, and any other member that extends in the vehicle width direction on the back side of the front bumper 110 may be used. Also good.

図１（ａ）に示すように、本実施形態の車両前部構造１００では、フロントバンパ１１０によって車両の前面が構成されている。フロントバンパ１１０の意匠面１１０ａは、車両後方へ行くほど上昇するように傾斜している。フロントバンパ１１０の車両後方側には、車両前部の上面を構成し、エンジンルーム（不図示）を覆うフロントフード１０２が配置される。またフロントバンパ１１０の背面側には、車幅方向に延びる横構造部材として、図２（ｂ）に示すフードロックメンバ１２０が配置されている。   As shown in FIG. 1A, in the vehicle front structure 100 according to the present embodiment, the front bumper 110 forms the front surface of the vehicle. The design surface 110a of the front bumper 110 is inclined so as to rise toward the rear of the vehicle. A front hood 102 that constitutes the upper surface of the front portion of the vehicle and covers the engine room (not shown) is disposed on the vehicle rear side of the front bumper 110. Further, on the back side of the front bumper 110, a hood lock member 120 shown in FIG. 2B is arranged as a lateral structural member extending in the vehicle width direction.

図３は、図１（ｂ）の断面図であり、図３（ａ）は図１（ｂ）のＡ−Ａ断面図であり、図３（ｂ）は図１（ｂ）のＢ−Ｂ断面図である。図４は、本実施形態にかかるアブソーバ１３０の背面図である。なお、理解を容易にするために、図３（ａ）および図３（ｂ）では、図１（ｂ）において透過させたフロントフード１０２およびフロントバンパ１１０を図示している。   3 is a cross-sectional view of FIG. 1 (b), FIG. 3 (a) is a cross-sectional view taken along line AA of FIG. 1 (b), and FIG. 3 (b) is a cross-sectional view taken along line BB of FIG. It is sectional drawing. FIG. 4 is a rear view of the absorber 130 according to the present embodiment. In order to facilitate understanding, FIGS. 3A and 3B show the front hood 102 and the front bumper 110 that are permeated in FIG. 1B.

図２（ａ）に示すように、フードロックメンバ１２０（図２（ｂ）参照）の上部には、荷重を吸収する部材であるアブソーバ１３０が車幅方向にわたって取り付けられる。図３（ａ）および（ｂ）に示すように、本実施形態では、アブソーバ１３０は、後部の上端がボルト（不図示）によってフロントバンパ１１０の後端に接合され、後部の下端がボルト１０４によってフードロックメンバ１２０の上部に接合されている。なお、本実施形態ではボルト締めによる接合を例示したが、これに限定するものではなく、他の方法を採用してもよい。   As shown in FIG. 2A, an absorber 130, which is a member that absorbs a load, is attached to the upper portion of the hood lock member 120 (see FIG. 2B) over the vehicle width direction. As shown in FIGS. 3A and 3B, in this embodiment, the upper end of the absorber 130 is joined to the rear end of the front bumper 110 by a bolt (not shown), and the lower end of the rear portion is joined by the bolt 104. It is joined to the upper part of the hood lock member 120. In addition, although the joining by bolting was illustrated in this embodiment, it is not limited to this, You may employ | adopt another method.

図３（ａ）および（ｂ）に示すように、アブソーバ１３０は、フロントバンパ１１０の意匠面１１０ａの裏面に沿うように延びる前面部１３２と、前面部１３２の後端から下降しながら後方に延びてフードロックメンバ１２０の上部に接合される背面部１３４とを有する。このように前面部１３２がフロントバンパ１１０の意匠面１１０ａの裏面に沿うように延びていることにより、通常時にフロントバンパ１１０にかかった荷重を前面部１３２で受け止めることができ、荷重によるフロントバンパ１１０のベカつきを抑制することが可能となる。   As shown in FIGS. 3A and 3B, the absorber 130 extends rearward while descending from the rear end of the front surface portion 132 and a front surface portion 132 extending along the rear surface of the design surface 110 a of the front bumper 110. And a back portion 134 joined to the upper portion of the hood lock member 120. Since the front surface portion 132 extends along the back surface of the design surface 110a of the front bumper 110 as described above, a load applied to the front bumper 110 in a normal state can be received by the front surface portion 132, and the front bumper 110 due to the load can be received. It becomes possible to suppress the stickiness.

図３（ａ）および（ｂ）、ならびに図４に示すように、アブソーバ１３０の背面には、前面部１３２の下面から背面部１３４の前面にわたって立設される縦リブ１３６が形成されている。本実施形態の特徴として、縦リブ１３６の下縁は、図３（ａ）に示すように、車両側方から見て上方に凸になるように湾曲していて、湾曲の頂点Ｔは、フロントバンパ１１０の意匠面１１０ａの後端近傍であるフロントバンパ１１０とフロントフード１０２の見切りの下方に位置する。すなわち本実施形態では、縦リブ１３６の下縁を、車両側方から見て湾曲の頂点Ｔがフロントバンパ１１０の意匠面１１０ａの後端近傍の下方に位置するように上方に凸に湾曲させることで、アブソーバ１３０の下縁を、車両側方から見て上方に凸になるように湾曲させ、その湾曲の頂点Ｔをフロントバンパ１１０の意匠面１１０ａの後端近傍の下方に位置させている。   As shown in FIGS. 3A and 3B and FIG. 4, vertical ribs 136 are formed on the rear surface of the absorber 130 so as to stand from the lower surface of the front surface portion 132 to the front surface of the rear surface portion 134. As a feature of the present embodiment, as shown in FIG. 3A, the lower edge of the vertical rib 136 is curved so as to be convex upward when viewed from the side of the vehicle. The bumper 110 is located near the rear end of the design surface 110 a of the bumper 110 and below the parting line between the front bumper 110 and the front hood 102. In other words, in the present embodiment, the lower edge of the vertical rib 136 is curved upward and convex so that the apex T of the curve is located below the rear end of the design surface 110a of the front bumper 110 when viewed from the side of the vehicle. Thus, the lower edge of the absorber 130 is curved so as to protrude upward when viewed from the side of the vehicle, and the apex T of the curve is positioned below the vicinity of the rear end of the design surface 110a of the front bumper 110.

上記構成により、例えば歩行者の大腿部等、衝突子１０６が車両前方からフロントバンパ１１０に接触した際、縦リブ１３６は、接触時の荷重を吸収しながら、湾曲している頂点Ｔ付近（以下、単に頂点Ｔと称する）、すなわちフロントバンパ１１０の意匠面１１０ａの後端近傍の下方を基点として撓む。図３（ｂ）では、しなりの基点として基点Ｐを例示している。そして、その撓みによって、同じくフロントバンパ１１０の意匠面１１０ａの後端近傍の下方を基点としてアブソーバ１３０の前面部１３２が下方にしなり、荷重が吸収される。   With the above configuration, for example, when the collider 106 comes into contact with the front bumper 110 from the front of the vehicle, such as the thigh of a pedestrian, the vertical rib 136 absorbs the load at the time of contact and near the apex T that is curved ( Hereinafter, it bends with the lower point near the rear end of the design surface 110a of the front bumper 110 as a base point. In FIG.3 (b), the base point P is illustrated as a flexible base point. Then, due to the bending, the front surface portion 132 of the absorber 130 becomes downward with the lower portion near the rear end of the design surface 110a of the front bumper 110 as a base point, and the load is absorbed.

アブソーバ１３０がしなった後、しなりの基点Ｐを基点として縦リブ１３６が折れ、アブソーバ１３０は、フロントバンパ１１０の意匠面１１０ａの後端近傍より前方部分（フロントバンパ１１０とフロントフード１０２の見切りより前方部分）である前面部１３２が、図３（ｂ）の二点鎖線に示すように下方に回転するように変形（移動）する。この変形により、衝突子１０６が接触した際の荷重が更に吸収される。   After the absorber 130 is bent, the vertical rib 136 is bent with the bending base point P as a base point, and the absorber 130 is located at a front portion (partially cut off between the front bumper 110 and the front hood 102) near the rear end of the design surface 110a of the front bumper 110. The front portion 132 which is a more forward portion is deformed (moved) so as to rotate downward as indicated by a two-dot chain line in FIG. This deformation further absorbs the load when the collider 106 contacts.

上記のように、アブソーバ１３０がしなることにより荷重を吸収し、その後にアブソーバ１３０の前方部分が変形することで更に荷重を吸収可能であることにより、荷重吸収効果が高まり、衝突子１０６（歩行者の大腿部）への負荷をより軽減することができる。また本実施形態のように縦リブ１３６を設定することにより、その厚みや数によってアブソーバ１３０の荷重吸収効果を調節することも可能となる。   As described above, the load is absorbed by the bending of the absorber 130, and then the load can be absorbed by further deforming the front portion of the absorber 130. Thus, the load absorbing effect is enhanced, and the collider 106 (walking) The load on the person's thigh) can be further reduced. Further, by setting the vertical rib 136 as in the present embodiment, the load absorbing effect of the absorber 130 can be adjusted according to the thickness and number of the ribs 136.

更に本実施形態では、図３（ａ）に示すように、フロントバンパ１１０の意匠面１１０ａの前端から後端までの間において、縦リブ１３６の車両高さ方向の寸法Ｈを、フロントバンパ１１０の意匠面１１０ａの後端近傍の下方において最も大きくなるように設定している。これにより、フロントバンパ１１０の意匠面１１０ａの前端から後端までの間において、しなりの基点であるフロントバンパ１１０の意匠面１１０ａの後端近傍の下方における縦リブ１３６の強度が高まる。したがって、フロントバンパ１１０とフロントフード１０２の見切りよりも前方の部位を基点としてアブソーバ１３０がしなってしまうことがなく、上述した効果を確実に得ることが可能となる。   Further, in the present embodiment, as shown in FIG. 3A, the dimension H in the vehicle height direction of the vertical rib 136 is set between the front end and the rear end of the design surface 110 a of the front bumper 110. It is set so as to be the largest in the lower part near the rear end of the design surface 110a. Thereby, between the front end of the design surface 110a of the front bumper 110, and the rear end, the intensity | strength of the vertical rib 136 in the downward vicinity of the rear end of the design surface 110a of the front bumper 110 which is a flexible base point increases. Therefore, the absorber 130 is not broken from the front portion of the front bumper 110 and the front hood 102 as a base point, and the above-described effects can be obtained with certainty.

また本実施形態では、図３（ａ）および図４に示すように、アブソーバ１３０は、フロントバンパ１１０の意匠面１１０ａの後端近傍の下方において前面部１３２の下面から立設され車幅方向に延びる横リブ１３８を更に有する。これにより、縦リブ１３６においてしなりの基点Ｐの近傍（図３（ｂ）参照）が横リブ１３８によって補強される。したがって、上記と同様にフロントバンパ１１０とフロントフード１０２の見切りよりも前方の部位を基点としたアブソーバ１３０のしなりが防がれ、高い荷重吸収効果を得ることができる。   Further, in the present embodiment, as shown in FIGS. 3A and 4, the absorber 130 is erected from the lower surface of the front surface portion 132 in the vicinity of the rear end of the design surface 110 a of the front bumper 110 and extends in the vehicle width direction. It further has a lateral rib 138 that extends. As a result, the vicinity of the bending base point P in the vertical rib 136 (see FIG. 3B) is reinforced by the horizontal rib 138. Therefore, similarly to the above, the absorber 130 is prevented from being bent based on the front part of the front bumper 110 and the front hood 102, and a high load absorbing effect can be obtained.

更に本実施形態では、図３（ａ）および（ｂ）に示すように、縦リブ１３６には、背面部１３４の前面から立設されフードロックメンバ１２０の上部の前端まで延びている領域１３６ａが含まれている。換言すれば、縦リブ１３６のうち、背面部１３４の前面から立設されて車両前方に延びる領域がその前端がフードロックメンバ１２０の前端まで延びている。   Further, in the present embodiment, as shown in FIGS. 3A and 3B, the vertical rib 136 has a region 136 a that stands from the front surface of the back surface portion 134 and extends to the front end of the upper portion of the hood lock member 120. include. In other words, a region of the vertical rib 136 that is erected from the front surface of the back surface portion 134 and extends forward of the vehicle has a front end extending to the front end of the hood lock member 120.

上記構成により、アブソーバ１３０の前面部１３２ひいてはその上部が取り付けられているフロントバンパ１１０と、フードロックメンバ１２０との間に延びてそれらを橋渡ししている背面部１３４の強度が向上し、その形状が強固に保たれる。したがって、フロントバンパ１１０だけでなくフロントフード１０２に荷重がかかった場合であっても背面部１３４の変形が防がれ、フロントバンパ１１０とフードロックメンバ１２０との見切り近傍を基点としたアブソーバ１３０のしなりを実現することが可能となる。   With the above configuration, the strength of the front bumper 110 to which the front portion 132 of the absorber 130 and thus the upper portion thereof are attached and the back portion 134 that extends between the hood lock member 120 and bridges them is improved. Is firmly maintained. Therefore, even when a load is applied not only to the front bumper 110 but also to the front hood 102, the rear surface portion 134 is prevented from being deformed, and the absorber 130 based on the vicinity of the parting line between the front bumper 110 and the hood lock member 120 is prevented. It becomes possible to realize a bend.

また本実施形態では、図３（ａ）に示すように、背面部１３４の下端（アブソーバ１３０の下部）、すなわち背面部１３４のフードロックメンバ１２０への接合箇所となる面をフードロックメンバ１２０の上部に面接触させている。これにより、アブソーバ１３０とフードロックメンバ１２０との接合箇所において曲げモーメント（回転モーメント）に対する保持力（抵抗力）を高めることができる。したがって、回転モーメント（荷重）によるフロントバンパ１１０の意匠面１１０ａの後端近傍より後方におけるアブソーバ１３０のしなりを防ぎ、上述した効果を好適に得ることが可能となる。   Further, in the present embodiment, as shown in FIG. 3A, the lower end of the back surface portion 134 (the lower portion of the absorber 130), that is, the surface of the back surface portion 134 that is to be joined to the hood lock member 120 is formed on the hood lock member 120. It is in surface contact with the top. Thereby, the holding force (resistance force) with respect to the bending moment (rotation moment) can be increased at the joint portion between the absorber 130 and the hood lock member 120. Therefore, it is possible to prevent the absorber 130 from being bent behind the vicinity of the rear end of the design surface 110a of the front bumper 110 due to the rotational moment (load), and to obtain the above-described effects suitably.

上記説明したように、本実施形態の車両前部構造１００によれば、アブソーバ１３０のしなりおよび変形の両方によって荷重を吸収可能であるため、高い荷重吸収効果を得ることができ、歩行者への負荷をより軽減することが可能である。またフロントバンパ１１０の意匠面１１０ａの裏面に沿うアブソーバ１３０の前面部１３２によって、通常時にフロントバンパにかかった荷重を前面部１３２で受け止めることができるため、その荷重によるフロントバンパ１１０のベカつきを抑制することも可能である。   As described above, according to the vehicle front part structure 100 of the present embodiment, the load can be absorbed by both the bending and deformation of the absorber 130, so that a high load absorption effect can be obtained, and a pedestrian can be obtained. It is possible to further reduce the load. In addition, since the front portion 132 of the absorber 130 along the back surface of the design surface 110a of the front bumper 110 can receive the load applied to the front bumper at the normal time by the front portion 132, the sticking of the front bumper 110 due to the load is suppressed. It is also possible to do.

なお、本実施形態では、アブソーバ１３０の下縁、すなわち縦リブ１３６の下縁が湾曲している場合を例示したが、これに限定するものではなく、その下縁は、頂点Ｔがフロントバンパ１１０の意匠面１１０ａの後端近傍の下方に位置するように屈曲している形状であってもよい。また図４に示すように、実施形態では、アブソーバ１３０の裏面（前面部１３２の下面および背面部１３４の前面）に複数の縦リブ１３６および横リブ１３８を設けているが、それらの数は所望の荷重吸収効果に応じて適宜変更可能である。   In the present embodiment, the case where the lower edge of the absorber 130, that is, the lower edge of the vertical rib 136 is curved is illustrated. However, the present invention is not limited to this. The design surface 110a may be bent so as to be positioned near the rear end of the design surface 110a. As shown in FIG. 4, in the embodiment, a plurality of vertical ribs 136 and horizontal ribs 138 are provided on the back surface of the absorber 130 (the lower surface of the front surface portion 132 and the front surface of the back surface portion 134). The load absorption effect can be changed as appropriate.

更に本実施形態ではアブソーバ１３０の下縁として縦リブ１３６の下縁を上記説明したように湾曲させる構成を例示したが、これに限定するものではない。アブソーバ１３０は必ずしも縦リブ１３６を備える必要はなく、縦リブ１３６を備えない場合であっても上記説明したようにアブソーバ１３０そのもの下縁を湾曲または屈曲させることにより同様の効果を得ることが可能である。   Furthermore, in the present embodiment, the configuration in which the lower edge of the vertical rib 136 is curved as described above as the lower edge of the absorber 130 is exemplified, but the present invention is not limited to this. The absorber 130 is not necessarily provided with the vertical rib 136, and even if the vertical rib 136 is not provided, the same effect can be obtained by bending or bending the lower edge of the absorber 130 itself as described above. is there.

以上、添付図面を参照しながら本発明の好適な実施形態について説明したが、本発明は係る例に限定されないことは言うまでもない。当業者であれば、特許請求の範囲に記載された範疇内において、各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。   As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

本発明は、車両の前面を構成するフロントバンパと、該フロントバンパの背面側において車幅方向に延びる横構造部材、およびその横構造部材の上部に車幅方向にわたって取り付けられるアブソーバとを含む車両前部構造に利用することができる。   The present invention includes a front bumper that constitutes a front surface of a vehicle, a lateral structural member that extends in the vehicle width direction on the rear side of the front bumper, and an absorber that is attached to the upper portion of the lateral structural member over the lateral direction of the vehicle. It can be used for partial structures.

１００…車両前部構造、１０２…フロントフード、１０４…ボルト、１０６…衝突子、１１０…フロントバンパ、１１０ａ…意匠面、１２０…フードロックメンバ、１３０…アブソーバ、１３２…前面部、１３４…背面部、１３６…縦リブ、１３６ａ…領域、１３８…横リブ DESCRIPTION OF SYMBOLS 100 ... Vehicle front part structure, 102 ... Front hood, 104 ... Bolt, 106 ... Collider, 110 ... Front bumper, 110a ... Design surface, 120 ... Hood lock member, 130 ... Absorber, 132 ... Front part, 134 ... Back part 136 ... Vertical ribs, 136a ... Area, 138 ... Horizontal ribs

Claims (4)

車両の前面を構成し車両後方へ行くほど上昇するように傾斜した意匠面を有するフロントバンパと、該フロントバンパの背面側において車幅方向に延びる横構造部材と、該横構造部材の上部に車幅方向にわたって取り付けられるアブソーバとを含む車両前部構造であって、
前記アブソーバは、
前記フロントバンパの意匠面の裏面に沿うように延びる前面部と、
前記前面部の後端から下降しながら後方に延び、下端が前記横構造部材の上部に接合される背面部とを備え、
前記アブソーバの下縁は、車両側方から見て上方に凸になるように湾曲または屈曲していて、該湾曲または屈曲の頂点は、車両前後方向において前記フロントバンパの意匠面の後端の下方に位置し、
前記アブソーバは、前記前面部の下面から前記背面部の前面にわたって立設される縦リブを更に備え、
前記下縁は前記縦リブの下縁であり、
前記縦リブの車両高さ方向の寸法は、前記フロントバンパの意匠面の前端から後端までの間では該フロントバンパの意匠面の後端の下方において最も大きいことを特徴とする車両前部構造。 A front bumper having a design surface that forms a front surface of the vehicle and is inclined so as to rise toward the rear of the vehicle, a lateral structural member that extends in the vehicle width direction on the rear surface side of the front bumper, and a vehicle disposed above the lateral structural member. A vehicle front structure including an absorber attached over the width direction,
The absorber is
A front surface portion extending along the back surface of the design surface of the front bumper;
A rear part extending downward while descending from the rear end of the front part, and a lower part joined to the upper part of the horizontal structural member,
The lower edge of the absorber is curved or bent so as to protrude upward when viewed from the side of the vehicle, and the vertex of the curve or bending is below the rear end of the design surface of the front bumper in the vehicle front-rear direction. Located in
The absorber further includes a vertical rib standing from the lower surface of the front surface portion to the front surface of the rear surface portion,
The lower edge is the lower edge of the longitudinal rib;
The vehicle front portion structure is characterized in that a dimension of the vertical rib in the vehicle height direction is largest below the rear end of the design surface of the front bumper between the front end and the rear end of the design surface of the front bumper. . 車両の前面を構成し車両後方へ行くほど上昇するように傾斜した意匠面を有するフロントバンパと、該フロントバンパの背面側において車幅方向に延びる横構造部材と、該横構造部材の上部に車幅方向にわたって取り付けられるアブソーバとを含む車両前部構造であって、
前記アブソーバは、
前記フロントバンパの意匠面の裏面に沿うように延びる前面部と、
前記前面部の後端から下降しながら後方に延び、下端が前記横構造部材の上部に接合される背面部とを備え、
前記アブソーバの下縁は、車両側方から見て上方に凸になるように湾曲または屈曲していて、該湾曲または屈曲の頂点は、車両前後方向において前記フロントバンパの意匠面の後端の下方に位置し、
前記アブソーバは、前記フロントバンパの意匠面の後端の下方において前記前面部の下面から立設され車幅方向に延びる横リブを更に有することを特徴とする車両前部構造。 A front bumper having a design surface that forms a front surface of the vehicle and is inclined so as to rise toward the rear of the vehicle, a lateral structural member that extends in the vehicle width direction on the rear surface side of the front bumper, and a vehicle disposed above the lateral structural member. A vehicle front structure including an absorber attached over the width direction,
The absorber is
A front surface portion extending along the back surface of the design surface of the front bumper;
A rear part extending downward while descending from the rear end of the front part, and a lower part joined to the upper part of the horizontal structural member,
The lower edge of the absorber is curved or bent so as to protrude upward when viewed from the side of the vehicle, and the vertex of the curve or bending is below the rear end of the design surface of the front bumper in the vehicle front-rear direction. Located in
The absorber of the vehicle front structure characterized by further have a transverse rib extending erected vehicle width direction from the lower surface of the front portion below the rear end of the design surface of the front bumper. 車両の前面を構成し車両後方へ行くほど上昇するように傾斜した意匠面を有するフロントバンパと、該フロントバンパの背面側において車幅方向に延びる横構造部材と、該横構造部材の上部に車幅方向にわたって取り付けられるアブソーバとを含む車両前部構造であって、
前記アブソーバは、
前記フロントバンパの意匠面の裏面に沿うように延びる前面部と、
前記前面部の後端から下降しながら後方に延び、下端が前記横構造部材の上部に接合される背面部とを備え、
前記アブソーバの下縁は、車両側方から見て上方に凸になるように湾曲または屈曲していて、該湾曲または屈曲の頂点は、車両前後方向において前記フロントバンパの意匠面の後端の下方に位置し、
前記アブソーバは、前記前面部の下面から前記背面部の前面にわたって立設される縦リブを更に備え、
前記下縁は前記縦リブの下縁であり、
前記縦リブは、前記背面部の前面から立設され前記横構造部材の上部の前端まで延びている領域を含むことを特徴とする車両前部構造。 A front bumper having a design surface that forms a front surface of the vehicle and is inclined so as to rise toward the rear of the vehicle, a lateral structural member that extends in the vehicle width direction on the rear surface side of the front bumper, and a vehicle disposed above the lateral structural member. A vehicle front structure including an absorber attached over the width direction,
The absorber is
A front surface portion extending along the back surface of the design surface of the front bumper;
A rear part extending downward while descending from the rear end of the front part, and a lower part joined to the upper part of the horizontal structural member,
The lower edge of the absorber is curved or bent so as to protrude upward when viewed from the side of the vehicle, and the vertex of the curve or bending is below the rear end of the design surface of the front bumper in the vehicle front-rear direction. Located in
The absorber further includes a vertical rib standing from the lower surface of the front surface portion to the front surface of the rear surface portion,
The lower edge is the lower edge of the longitudinal rib;
The vehicle front structure according to claim 1, wherein the vertical rib includes a region standing from a front surface of the back surface portion and extending to a front end of an upper portion of the horizontal structural member . 前記アブソーバの背面部の下端は、前記横構造部材の上部に面接触していることを特徴とする請求項１から３のいずれか１項に記載の車両前部構造。 The vehicle front part structure according to any one of claims 1 to 3 , wherein a lower end of a rear part of the absorber is in surface contact with an upper part of the horizontal structural member.
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