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JP5692239B2 - Heat exchanger suspension structure at the front of the vehicle - Google Patents
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JP5692239B2 - Heat exchanger suspension structure at the front of the vehicle - Google Patents

Heat exchanger suspension structure at the front of the vehicle Download PDF

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JP5692239B2
JP5692239B2 JP2012549686A JP2012549686A JP5692239B2 JP 5692239 B2 JP5692239 B2 JP 5692239B2 JP 2012549686 A JP2012549686 A JP 2012549686A JP 2012549686 A JP2012549686 A JP 2012549686A JP 5692239 B2 JP5692239 B2 JP 5692239B2
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heat exchanger
vehicle
suspension
suspension bracket
surface portion
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JPWO2012086336A1 (en
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後藤　陽一
陽一 後藤
伸司 大野
伸司 大野
増田　出光
出光 増田
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Suzuki Motor Corp
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Suzuki Motor Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • 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
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152—Front or rear frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B62D25/084—Radiator supports
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

本発明は、車両前部の熱交換器懸架構造に関する。   The present invention relates to a heat exchanger suspension structure at the front of a vehicle.

従来から、車両前部の内部には、サイドメンバ、ランプサポートメンバ、ラジエータサポートメンバ、バンパーネット、フロントバンパー等の部材が設けられている。このうち、ランプサポートメンバ及びラジエータサポートメンバは、車両の上下位置に設けられており、これらメンバにより熱交換器（ラジエータ、コンデンサ）が支持されて、車両前部に配置されている。一方、サイドメンバの車両前方には、バンパーメンバが設けられていない車両前部も存在している。
このような構造の車両前部では、バンパーメンバやサイドメンバも設けられていない部分の熱交換器に対して、車両前方から棒状物体である歩行者の脚部が当たる場合、バンパーフェイシャーやバンパーネットを介して内部の構造物に荷重が掛かるとともに、歩行者の脚部には熱交換器側からの荷重が掛かっていた。Conventionally, members such as a side member, a lamp support member, a radiator support member, a bumper net, and a front bumper are provided inside the front portion of the vehicle. Among these, the lamp support member and the radiator support member are provided at the upper and lower positions of the vehicle, and a heat exchanger (radiator, condenser) is supported by these members and is disposed at the front of the vehicle. On the other hand, there is a front part of the vehicle in which no bumper member is provided in front of the side member.
In the front part of the vehicle having such a structure, when a pedestrian leg, which is a rod-shaped object, hits a heat exchanger in a portion where no bumper member or side member is provided, from the front of the vehicle, A load was applied to the internal structure via the net, and a load from the heat exchanger side was applied to the legs of the pedestrian.

熱交換器側から荷重が掛かると、歩行者の脚部、特に膝より下側は車両前後方向に振られることになる。これにより、膝の角度変化が大きくなり、膝への負荷が増大するおそれがあった。
そこで、従来の車両前部構造の中には、バンパーリーンフォースメントの車両前方を覆う収納位置と、該収納位置より下方に配置され、バンパーリーンフォースメントより車両前方に突出する作動位置とに向かって移動可動なバンパーを備えているものがある（例えば、特許文献１参照）。この車両前部構造によれば、作動位置に移動したバンパーが歩行者の脚部に当たるため、入力荷重を吸収することができ、脚部の上方部位と下方部位との間に発生する屈曲を抑えることができるとされている。When a load is applied from the heat exchanger side, the legs of the pedestrian, particularly the lower side than the knee, is shaken in the vehicle front-rear direction. Thereby, the angle change of the knee becomes large, and there is a concern that the load on the knee increases.
In view of this, in the conventional vehicle front structure, there is a storage position that covers the vehicle front of the bumper reinforcement, and an operation position that is disposed below the storage position and protrudes forward of the vehicle from the bumper reinforcement. Some have a movable bumper (see, for example, Patent Document 1). According to this vehicle front structure, the bumper moved to the operating position hits the pedestrian's leg, so that the input load can be absorbed and bending occurring between the upper part and the lower part of the leg is suppressed. It is supposed to be possible.

特開２００５−１３２２５８号公報JP 2005-132258 A

しかしながら、上述した従来の車両前部構造においては、車速データに基づいてバンパーの位置を設定しており、車速が低速または高速の場合には、当該バンパーは収納位置に位置し、中速の場合には、当該バンパーは作動位置に位置している。そのため、車速が低速または高速の場合には、歩行者の脚部は従前と同様に車両前部に当たることとなり、脚部の上方部位と下方部位との間に発生する屈曲を抑えることができないおそれがあった。
なお、歩行者の脚部を保護するには、熱交換器などに当たる脚部を直線状に保つことが重要であることが分かっている。However, in the conventional vehicle front structure described above, the position of the bumper is set based on the vehicle speed data, and when the vehicle speed is low or high, the bumper is positioned at the storage position, and at the medium speed The bumper is in the operating position. Therefore, when the vehicle speed is low or high, the pedestrian's leg will hit the front of the vehicle in the same manner as before, and there is a risk that bending occurring between the upper part and the lower part of the leg cannot be suppressed. was there.
In addition, in order to protect a pedestrian's leg part, it turns out that it is important to keep the leg part which hits a heat exchanger etc. linearly.

本発明はこのような実状に鑑みてなされたものであって、その目的は、歩行者の脚部が車両前部の熱交換器に当たった場合に、内部の構造物の変形をコントロールすることにより脚部を直線状に保ち、脚部への荷重を効率的に吸収するとともに、脚部の屈曲をより確実に軽減させることが可能な車両前部の熱交換器懸架構造を提供することにある。   The present invention has been made in view of such a situation, and its purpose is to control deformation of an internal structure when a pedestrian's leg hits a heat exchanger at the front of the vehicle. To provide a heat exchanger suspension structure at the front of the vehicle that can keep the legs straight and efficiently absorb the load on the legs and reduce the bending of the legs more reliably. is there.

上記従来技術の有する課題を解決するために、本発明は、車両前後方向に沿って延在するサイドメンバの車両前方にバンパーメンバが設けられておらず、車両前方視で平面形状の熱交換器が配置され、かつ車両上下方向に対応して延びる歩行者の脚部が前記熱交換器の車両前方に位置するような車両前部の熱交換器懸架構造において、前記熱交換器の上下部は、上下懸架部を介して対応するアッパメンバ及びロアメンバにそれぞれ懸架されており、前記熱交換器の上部懸架部には懸架ブラケットが設けられ、該懸架ブラケットは、車両上方に延びる上部の垂直面部と、車両後方に延びる下部の水平面部とによって車両側方視でＬ字状に形成されており、前記懸架ブラケットの垂直面部は、前記アッパメンバに取付けられているとともに、前記懸架ブラケットの水平面部は、前記熱交換器に取付けられ、前記熱交換器の下部懸架部は、前記ロアメンバに対して回動可能な構造を有している。 In order to solve the above-described problems of the prior art, the present invention provides a heat exchanger having a planar shape when viewed from the front of the vehicle without a bumper member provided on the front side of the side member extending in the vehicle front-rear direction. And a heat exchanger suspension structure at the front of the vehicle in which a leg portion of a pedestrian extending corresponding to the vehicle vertical direction is positioned in front of the heat exchanger, the upper and lower portions of the heat exchanger are The upper member and the lower member are respectively suspended via upper and lower suspension parts, and a suspension bracket is provided on the upper suspension part of the heat exchanger, and the suspension bracket includes an upper vertical surface part extending above the vehicle, The lower horizontal plane portion extending rearward of the vehicle is formed in an L shape in a vehicle side view, and the vertical surface portion of the suspension bracket is attached to the upper member, and Horizontal portion of the rack bracket is attached to the heat exchanger, the lower suspension part of the heat exchanger has a rotatable structure with respect to said lower member.

また、本発明において、前記熱交換器の上部懸架部には懸架ブラケットが設けられ、該懸架ブラケットは、前記アッパメンバ側もしくは前記熱交換器側に水平面部を有し、該水平面部には、車両前後方向に延びる長孔が設けられ、該長孔に締結具を挿通することによって、前記熱交換器の上部が前記アッパメンバに取付けられて懸架されている。 In the present invention, a suspension bracket is provided on the upper suspension portion of the heat exchanger, and the suspension bracket has a horizontal surface portion on the upper member side or the heat exchanger side, and the horizontal surface portion includes a vehicle. front and rear long hole extending in direction is provided, by inserting the fastener into the long holes, the upper portion of the heat exchanger is attached to the upper member that is suspended.

上述の如く、本発明に係る車両前部の熱交換器懸架構造は、車両前後方向に沿って延在するサイドメンバの車両前方にバンパーメンバが設けられておらず、車両前方視で平面形状の熱交換器が配置され、かつ車両上下方向に対応して延びる歩行者の脚部が前記熱交換器の車両前方に位置するようなものであって、前記熱交換器の上下部は、上下懸架部を介して対応するアッパメンバ及びロアメンバにそれぞれ懸架されており、前記熱交換器の上部懸架部には懸架ブラケットが設けられ、該懸架ブラケットは、車両上方に延びる上部の垂直面部と、車両後方に延びる下部の水平面部とによって車両側方視でＬ字状に形成されており、前記懸架ブラケットの垂直面部は、前記アッパメンバに取付けられているとともに、前記懸架ブラケットの水平面部は、前記熱交換器に取付けられ、前記熱交換器の下部懸架部は、前記ロアメンバに対して回動可能な構造を有しているので、歩行者の脚部が車両前部の熱交換器に当たった場合に、熱交換器の上部懸架部が確実に後退して斜めに配置されることになる。これに伴い、脚部の上方部位が下方部位よりも車両後方に位置して、斜めに直線状に保たれることになる。しかも、本発明の構造によれば、熱交換器の上部懸架部を懸架ブラケットによって円滑かつ迅速に後退させることができるとともに、熱交換器の下部懸架部を中心にして、上部懸架部のみを確実に後退させて斜めに配置でき、脚部を斜めに直線状に規制することができる。
したがって、本発明の熱交換器懸架構造によれば、内部の構造物の変形をコントロールすることにより脚部を直線状に保ち、脚部への荷重を効率的に吸収できるとともに、脚部の屈曲をより確実に軽減させることができる。 As described above, the heat exchanger suspension structure at the front of the vehicle according to the present invention has no bumper member provided in front of the side member extending along the vehicle front-rear direction, and has a planar shape when viewed from the front of the vehicle. A heat exchanger is disposed and a leg portion of a pedestrian extending corresponding to the vertical direction of the vehicle is positioned in front of the vehicle of the heat exchanger, and the upper and lower portions of the heat exchanger are vertically suspended. The upper and lower members of the heat exchanger are respectively suspended via corresponding portions, and a suspension bracket is provided on the upper suspension portion of the heat exchanger. The suspension bracket includes an upper vertical surface portion extending above the vehicle, and a rear portion of the vehicle. A vertical horizontal surface portion of the suspension bracket is attached to the upper member, and a horizontal surface of the suspension bracket is formed in an L shape when viewed from the side of the vehicle. Parts are attached to the heat exchanger, the lower suspension part of the heat exchanger, because it has a rotatable structure with respect to said lower member, the legs of the pedestrian heat exchanger of the vehicle front portion When hitting the heat exchanger, the upper suspension part of the heat exchanger is surely retracted and arranged obliquely. Along with this, the upper part of the leg is positioned rearward of the vehicle with respect to the lower part and is kept obliquely linear. In addition, according to the structure of the present invention, the upper suspension part of the heat exchanger can be smoothly and quickly retracted by the suspension bracket, and only the upper suspension part is reliably centered on the lower suspension part of the heat exchanger. The leg portion can be linearly regulated diagonally.
Therefore, according to the heat exchanger suspension structure of the present invention, it is possible to keep the legs straight by controlling the deformation of the internal structure, efficiently absorb the load on the legs, and bend the legs. Can be reduced more reliably.

また、本発明の構造において、前記熱交換器の上部懸架部には懸架ブラケットが設けられ、該懸架ブラケットは、前記アッパメンバ側もしくは前記熱交換器側に水平面部を有し、該水平面部には、車両前後方向に延びる長孔が設けられ、該長孔に締結具を挿通することによって、前記熱交換器の上部が前記アッパメンバに取付けられて懸架されているので、歩行者の脚部が車両前部の熱交換器に当たった場合に、簡単な構造で熱交換器の上部懸架部を懸架ブラケットによって円滑かつ迅速に後退させることができる。 In the structure of the present invention, a suspension bracket is provided on the upper suspension portion of the heat exchanger, and the suspension bracket has a horizontal surface portion on the upper member side or the heat exchanger side, and the horizontal surface portion includes a long hole is provided extending in the longitudinal direction of the vehicle, by inserting the fastener into the long hole, Runode top of the heat exchanger are mounted in suspension in said upper member, the leg portion of the pedestrian When hitting the heat exchanger at the front of the vehicle, the upper suspension portion of the heat exchanger can be smoothly and quickly retracted by the suspension bracket with a simple structure.

本発明の実施形態に係る熱交換器懸架構造が適用される車両前部の外観を示す斜視図である。It is a perspective view which shows the external appearance of the vehicle front part to which the heat exchanger suspension structure which concerns on embodiment of this invention is applied. 図１の車両前部の内部構造を示す斜視図である。It is a perspective view which shows the internal structure of the vehicle front part of FIG. 本発明の実施形態に係る熱交換器の上部懸架部を拡大して車両前方の斜め上方から見たものであり、（ａ）は車両中央側の斜視図、（ｂ）は車両外側の斜視図である。The upper suspension part of the heat exchanger which concerns on embodiment of this invention is expanded and it is seen from diagonally upward of the vehicle front, (a) is a perspective view of the vehicle center side, (b) is a perspective view of the vehicle outer side. It is. 図２のＡ−Ａ線断面であって、移動後の熱交換器を概念的に示す図である。It is an AA line section of Drawing 2, and is a figure showing notionally a heat exchanger after movement. （ａ）は図１の車両前部の内部構造において、移動前後の熱交換器を車両側方から見た概念図、（ｂ）は（ａ）のＸ部拡大図である。(A) is the conceptual diagram which looked at the heat exchanger before and behind a movement from the vehicle side in the internal structure of the vehicle front part of FIG. 1, (b) is the X section enlarged view of (a).

以下、本発明を図示の実施の形態に基づいて詳細に説明する。
図１〜図５は本発明の実施形態に係る車両前部の熱交換器懸架構造を示すものである。Hereinafter, the present invention will be described in detail based on illustrated embodiments.
1 to 5 show a heat exchanger suspension structure at the front of a vehicle according to an embodiment of the present invention.

図１及び図２に示すように、本発明の実施形態に係る熱交換器懸架構造が適用される車両前部１には、主として、車両前後方向に沿って延在し、かつ車両幅方向の左右両側に間隔を置いて配置される左右一対のサイドメンバ２と、これらサイドメンバ２よりも車両前方側に配置される車両前方視で平面形状の熱交換器（ラジエータなど）３が設けられている。しかし、本実施形態の車両前部１におけるサイドメンバ２の車両前方には、バンパーメンバが設けられていない。
本実施形態の車両前部１においては、車両上下方向に対応して延びる歩行者の脚部Ｌが熱交換器３の車両前方に位置するように構成されている。なお、本実施形態の構造では、歩行者の脚部Ｌとして、成人男性の平均的な体格を基づいて作られた衝突解析用人体モデルの脚部が用いられているが、これに限定するものではない。また、衝突物体として、歩行者の脚部Ｌ以外の他の棒状物体に対しても、適用可能である。As shown in FIGS. 1 and 2, the vehicle front portion 1 to which the heat exchanger suspension structure according to the embodiment of the present invention is applied mainly extends along the vehicle longitudinal direction and extends in the vehicle width direction. A pair of left and right side members 2 arranged at intervals on the left and right sides, and a heat exchanger (a radiator or the like) 3 having a planar shape as viewed from the front of the vehicle and disposed on the front side of the vehicle relative to the side members 2 Yes. However, a bumper member is not provided in front of the side member 2 in the vehicle front portion 1 of the present embodiment.
In the vehicle front portion 1 of the present embodiment, a pedestrian leg L extending corresponding to the vehicle vertical direction is configured to be positioned in front of the heat exchanger 3 in the vehicle. In addition, in the structure of this embodiment, although the leg part of the human body model for a collision analysis made based on the average physique of an adult male is used as the leg part L of a pedestrian, it is limited to this. is not. Moreover, it is applicable also to other rod-shaped objects other than the pedestrian's leg part L as a collision object.

サイドメンバ２は、車両前部１の主骨格を構成する剛性部材であり、サイドメンバ２の前端部近傍の上側には、図２に示すように、車両幅方向へ延在するランプサポートメンバ（アッパメンバ）４が配置されており、該ランプサポートメンバ４などによって左右両側のヘッドランプ５が支持されている。また、サイドメンバ２の前端部近傍の下側には、車体幅方向へ延在するラジエータサポートメンバ（ロアメンバ）６が配置されており、該ラジエータサポートメンバ６などによって、左右両側に位置するサイドメンバ２の前端部の下部が連結されている。しかも、ランプサポートメンバ４とラジエータサポートメンバ６とは、車両前部１の左右両側に配置した車両上下方向へ延びるランプサポートブレース７によって連結されている。 The side member 2 is a rigid member constituting the main skeleton of the vehicle front portion 1, and on the upper side in the vicinity of the front end portion of the side member 2, as shown in FIG. 2, a lamp support member ( (Upper member) 4 is disposed, and the right and left headlamps 5 are supported by the lamp support member 4 and the like. Further, a radiator support member (lower member) 6 extending in the vehicle body width direction is disposed below the vicinity of the front end portion of the side member 2, and the side members positioned on both the left and right sides by the radiator support member 6 and the like. The lower part of the front end part of 2 is connected. Moreover, the lamp support member 4 and the radiator support member 6 are connected to each other by lamp support braces 7 that are arranged on the left and right sides of the vehicle front portion 1 and extend in the vehicle vertical direction.

本実施形態における熱交換器３の上下部は、図２及び図３に示すように、左右両側の上下懸架部を介して、対応するランプサポートメンバ４及びラジエータサポートメンバ６にそれぞれ懸架されている。このため、熱交換器３は、ランプサポートメンバ４とラジエータサポートメンバ６との上下間に配置された状態で、懸架支持されることになる。 As shown in FIGS. 2 and 3, the upper and lower portions of the heat exchanger 3 in the present embodiment are respectively suspended on the corresponding lamp support members 4 and radiator support members 6 via the upper and lower suspension portions on the left and right sides. . For this reason, the heat exchanger 3 is suspended and supported in a state where it is disposed between the lamp support member 4 and the radiator support member 6.

熱交換器３の上部懸架部には、左右一対の懸架ブラケット８が設けられている。この懸架ブラケット８は、車両上方に延びる上部の垂直面部８ａと、車両後方に延びる下部の水平面部８ｂとによって、車両側方視でＬ字状に形成されている。そして、車両中央側に位置する懸架ブラケット８の垂直面部８ａの上部は、図３（ａ）に示すように、ボルトなどの締結具９を締付け固定することにより、車両上下方向に沿って延びる支持ブラケット１０を介してランプサポートメンバ４に取付けられている。また、車両外側に位置する懸架ブラケット８の垂直面部８ａの上部は、図３（ｂ）に示すように、ボルトなどの締結具９を締付け固定することにより、ランプサポートブレース７を介してランプサポートメンバ４に取付けられている。
そして、懸架ブラケット８の水平面部８ｂは、ボルトなどの締結具９を締付け固定することにより、熱交換器３の上部に取付けられている。A pair of left and right suspension brackets 8 are provided on the upper suspension portion of the heat exchanger 3. The suspension bracket 8 is formed in an L shape in a vehicle side view by an upper vertical surface portion 8a extending upward of the vehicle and a lower horizontal surface portion 8b extending rearward of the vehicle. And the upper part of the vertical surface part 8a of the suspension bracket 8 located in the vehicle center side supports extending along the vehicle up-down direction by fastening and fixing a fastener 9 such as a bolt as shown in FIG. The lamp support member 4 is attached via a bracket 10. Further, as shown in FIG. 3B, the upper portion of the vertical surface portion 8a of the suspension bracket 8 positioned outside the vehicle is fastened with a fastener 9 such as a bolt to fix the lamp support via the lamp support brace 7. It is attached to the member 4.
And the horizontal surface part 8b of the suspension bracket 8 is attached to the upper part of the heat exchanger 3 by fastening and fixing fasteners 9, such as a volt | bolt.

一方、熱交換器３の下部懸架部の底面には、所定の長さで突出する左右一対の支持ロッド１１が車両幅方向に間隔を空けて配設されている。また、ラジエータサポートメンバ６の左右両側の上面には、支持ロッド１１を挿入する取付孔１２がそれぞれ穿設されている。したがって、熱交換器３の下部懸架部は、各支持ロッド１１を左右両側の取付孔１２にそれぞれ挿入することにより、ラジエータサポートメンバ６の上面に載置された状態で取付けられており、ラジエータサポートメンバ６に対して回動可能な構造を有している。 On the other hand, a pair of left and right support rods 11 protruding at a predetermined length are disposed on the bottom surface of the lower suspension portion of the heat exchanger 3 with an interval in the vehicle width direction. Further, attachment holes 12 for inserting the support rods 11 are formed in the upper surfaces of the left and right sides of the radiator support member 6, respectively. Therefore, the lower suspension part of the heat exchanger 3 is mounted in a state where it is placed on the upper surface of the radiator support member 6 by inserting the support rods 11 into the left and right mounting holes 12 respectively. The member 6 has a rotatable structure.

そのため、本実施形態の車両前部１の熱交換器懸架構造においては、歩行者の脚部Ｌが車両前部１に当たり、図３の矢印Ｆで示すように、脚部Ｌからの荷重が懸架ブラケット８の下部の水平面部８ｂに掛かるときに、車両側方視でＬ字状の懸架ブラケット８が図４中の鎖線から実線で示すように直線状に変形し、熱交換器３の下部の支持ロッド１１を中心にして熱交換器３の上部が車両後方へ向かって回動することにより、熱交換器３の上部懸架部が熱交換器３の下部懸架部よりも車両後方に移動するように構成されている。 Therefore, in the heat exchanger suspension structure of the vehicle front portion 1 of the present embodiment, the pedestrian's leg L hits the vehicle front portion 1 and the load from the leg L is suspended as shown by the arrow F in FIG. When hanging on the horizontal plane portion 8b below the bracket 8, the L-shaped suspension bracket 8 is deformed in a straight line as shown by the solid line from the chain line in FIG. By rotating the upper part of the heat exchanger 3 around the support rod 11 toward the rear of the vehicle, the upper suspension part of the heat exchanger 3 moves to the rear of the vehicle rather than the lower suspension part of the heat exchanger 3. It is configured.

すなわち、熱交換器３は、上部のみが車両後方側に倒れているような傾斜状態に配置されることになる。移動後の熱交換器３の傾きは、図４の点線Ｃで示すように、熱交換器３の前面である平面部分とラジエータサポートメンバ６の車両前端とが直線状に並ぶように設定され、あるいは、熱交換器３の前面である平面部分とランプサポートメンバ４の車両前端とが直線状に並ぶように設定されている。
したがって、歩行者の脚部Ｌは、図５（ａ）中の点線で示すように、上部が車両後方に位置すべく、斜めに直線状に配置されるように構成されている。That is, the heat exchanger 3 is arranged in an inclined state in which only the upper part is tilted to the vehicle rear side. The inclination of the heat exchanger 3 after the movement is set so that the plane portion that is the front surface of the heat exchanger 3 and the vehicle front end of the radiator support member 6 are arranged in a straight line, as indicated by a dotted line C in FIG. Alternatively, the flat portion which is the front surface of the heat exchanger 3 and the vehicle front end of the lamp support member 4 are set in a straight line.
Therefore, as shown by the dotted line in FIG. 5A, the leg portion L of the pedestrian is configured to be linearly arranged obliquely so that the upper portion is positioned behind the vehicle.

このように構成された本発明の実施形態に係る熱交換器懸架構造を備えた車両前部１の熱交換器３に対して、歩行者の脚部Ｌが当たると、脚部Ｌからの荷重が図３の矢印Ｆで示すように車両前方から懸架ブラケット８の下部の水平面部８ｂに掛かることになる。これにより、懸架ブラケット８が直線状に変形し、熱交換器３の上部が当該熱交換器３の下部の支持ロッド１１を中心にして車両後方へ向かって回動しながら、熱交換器３の上部懸架部が熱交換器３の下部懸架部よりも車両後方に移動し、熱交換器３の平面部分とラジエータサポートメンバ６の車両前端とが直線状に並ぶとともに、熱交換器３の平面部分とランプサポートメンバ４の車両前端とが直線状に並ぶことになる（図４参照）。
その結果、熱交換器３に当たる歩行者の脚部Ｌは、上部が車両後方側に位置する傾斜状態で熱交換器３に受け止められて直線状に保たれ、支えられることになる（図１、図２及び図５参照）。When the pedestrian's leg L hits the heat exchanger 3 of the vehicle front part 1 having the heat exchanger suspension structure according to the embodiment of the present invention thus configured, the load from the leg L As shown by an arrow F in FIG. As a result, the suspension bracket 8 is linearly deformed, and the upper portion of the heat exchanger 3 rotates around the support rod 11 at the lower portion of the heat exchanger 3 toward the rear of the vehicle. The upper suspension part moves rearward of the vehicle from the lower suspension part of the heat exchanger 3, and the planar part of the heat exchanger 3 and the vehicle front end of the radiator support member 6 are arranged in a straight line, and the planar part of the heat exchanger 3 And the front end of the lamp support member 4 are arranged in a straight line (see FIG. 4).
As a result, the leg portion L of the pedestrian that hits the heat exchanger 3 is received and supported by the heat exchanger 3 in an inclined state in which the upper portion is positioned on the vehicle rear side (FIG. 1, FIG. 1). 2 and 5).

したがって、本発明の実施形態に係る車両前部１の熱交換器懸架構造では、歩行者の脚部Ｌが車両前部１の熱交換器３に当たる場合に、上部懸架部の懸架ブラケット８の変形をコントロールすることにより歩行者の脚部Ｌを直線状に保てるので、熱交換器３から歩行者の脚部Ｌへの荷重を効率的に吸収して緩和できるとともに、脚部Ｌへの局所的な荷重を回避し、脚部Ｌの屈曲を確実に軽減させることができる。 Therefore, in the heat exchanger suspension structure of the vehicle front portion 1 according to the embodiment of the present invention, when the pedestrian's leg L hits the heat exchanger 3 of the vehicle front portion 1, the suspension bracket 8 of the upper suspension portion is deformed. Since the pedestrian's leg L can be kept straight by controlling the pedestrian, the load from the heat exchanger 3 to the pedestrian's leg L can be efficiently absorbed and relaxed, and the local to the leg L can be reduced. Thus, it is possible to reliably reduce the bending of the leg portion L.

以上、本発明の実施の形態につき述べたが、本発明は既述の実施の形態に限定されるものではなく、本発明の技術的思想に基づいて各種の変形及び変更が可能である。   While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

例えば、既述の実施の形態では、熱交換器３の上部懸架部に車両側方視でＬ字状の懸架ブラケット８が設けられているが、適用車種などに応じて、ランプサポートメンバ４側もしくは熱交換器３側に水平面部を有し、該水平面部に車両前後方向に延びる長孔（図示せず）が設けられ、該長孔に締結具９を挿通することによって、熱交換器３の上部がランプサポートメンバ４に取付けられて懸架され、熱交換器３に荷重が掛かるときに、熱交換器３の上部が当該長孔を介してずれることにより車両後方に移動するように構成されている懸架ブラケットを用いても良い。   For example, in the above-described embodiment, the upper suspension portion of the heat exchanger 3 is provided with the L-shaped suspension bracket 8 when viewed from the side of the vehicle. Alternatively, the heat exchanger 3 has a horizontal plane portion on the side, and a long hole (not shown) extending in the vehicle front-rear direction is provided in the horizontal plane portion, and the fastener 9 is inserted into the long hole, whereby the heat exchanger 3 The upper part of the heat exchanger 3 is suspended by being attached to the lamp support member 4, and when a load is applied to the heat exchanger 3, the upper part of the heat exchanger 3 is configured to move to the rear of the vehicle by shifting through the elongated hole. A suspension bracket may be used.

１ 車両前部
２ サイドメンバ
３ 熱交換器
４ ランプサポートメンバ（アッパメンバ）
６ ラジエータサポートメンバ（ロアメンバ）
７ ランプサポートブレース
８ 懸架ブラケット８
８ａ 垂直面部
８ｂ 水平面部
９ 締結具
１０ 支持ブラケット
１１ 支持ロッド
１２ 取付孔
Ｌ 歩行者の脚部DESCRIPTION OF SYMBOLS 1 Vehicle front part 2 Side member 3 Heat exchanger 4 Lamp support member (upper member)
6 Radiator support member (lower member)
7 Lamp support brace 8 Suspension bracket 8
8a Vertical surface portion 8b Horizontal surface portion 9 Fastener 10 Support bracket 11 Support rod 12 Mounting hole L Pedestrian leg

Claims (2)

車両前後方向に沿って延在するサイドメンバの車両前方にバンパーメンバが設けられておらず、車両前方視で平面形状の熱交換器が配置され、かつ車両上下方向に対応して延びる歩行者の脚部が前記熱交換器の車両前方に位置するような車両前部の熱交換器懸架構造において、
前記熱交換器の上下部は、上下懸架部を介して対応するアッパメンバ及びロアメンバにそれぞれ懸架されており、
前記熱交換器の上部懸架部には懸架ブラケットが設けられ、該懸架ブラケットは、車両上方に延びる上部の垂直面部と、車両後方に延びる下部の水平面部とによって車両側方視でＬ字状に形成されており、前記懸架ブラケットの垂直面部は、前記アッパメンバに取付けられているとともに、前記懸架ブラケットの水平面部は、前記熱交換器に取付けられ、前記熱交換器の下部懸架部は、前記ロアメンバに対して回動可能な構造を有していることを特徴とする車両前部の熱交換器懸架構造。 A bumper member is not provided in front of the side member extending along the vehicle front-rear direction, a planar heat exchanger is disposed in front of the vehicle, and the pedestrian extends corresponding to the vehicle vertical direction. In the heat exchanger suspension structure at the front of the vehicle such that the legs are positioned in front of the vehicle of the heat exchanger,
The upper and lower parts of the heat exchanger are respectively suspended by corresponding upper members and lower members via upper and lower suspension parts,
A suspension bracket is provided on the upper suspension portion of the heat exchanger, and the suspension bracket is formed in an L shape in a side view of the vehicle by an upper vertical surface portion extending upward of the vehicle and a lower horizontal surface portion extending rearward of the vehicle. The vertical surface portion of the suspension bracket is attached to the upper member, the horizontal surface portion of the suspension bracket is attached to the heat exchanger, and the lower suspension portion of the heat exchanger is the lower member. A heat exchanger suspension structure for a front part of a vehicle, characterized in that the structure has a structure rotatable with respect to the vehicle. 前記熱交換器の上部懸架部には懸架ブラケットが設けられ、該懸架ブラケットは、前記アッパメンバ側もしくは前記熱交換器側に水平面部を有し、該水平面部には、車両前後方向に延びる長孔が設けられ、該長孔に締結具を挿通することによって、前記熱交換器の上部が前記アッパメンバに取付けられて懸架されていることを特徴とする請求項１に記載の車両前部の熱交換器懸架構造。 A suspension bracket is provided on the upper suspension portion of the heat exchanger, and the suspension bracket has a horizontal surface portion on the upper member side or the heat exchanger side, and the horizontal surface portion has a long hole extending in the vehicle front-rear direction. The vehicle front heat exchanger according to claim 1, wherein an upper portion of the heat exchanger is attached to and suspended from the upper member by inserting a fastener through the elongated hole. Equipment suspension structure.
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