JP7037741B2 - Vehicle front structure - Google Patents

Vehicle front structure Download PDF

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JP7037741B2
JP7037741B2 JP2017234268A JP2017234268A JP7037741B2 JP 7037741 B2 JP7037741 B2 JP 7037741B2 JP 2017234268 A JP2017234268 A JP 2017234268A JP 2017234268 A JP2017234268 A JP 2017234268A JP 7037741 B2 JP7037741 B2 JP 7037741B2
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vehicle
mount
wall portion
fixing
side wall
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JP2019099038A (en
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康平 大倉
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Suzuki Motor Co Ltd
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Suzuki Motor Co Ltd
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Priority to JP2017234268A priority Critical patent/JP7037741B2/en
Priority to CN201811203186.5A priority patent/CN109878576B/en
Priority to FR1871720A priority patent/FR3076801B1/en
Priority to DE102018131136.2A priority patent/DE102018131136B4/en
Publication of JP2019099038A publication Critical patent/JP2019099038A/en
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    • 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
    • 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
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/04—Connections between superstructure or understructure sub-units resilient

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Description

本発明は、車両前部構造に関する。 The present invention relates to a vehicle front structure.

従来の車両前部構造の中には、エンジンコンパートメント部のボディの前部両側にフェンダエプロンを配置し、該フェンダエプロンの内側部に、これらフェンダエプロンと共働して閉断面構造を構成する側部補強部材を設け、該側部補強部材の前後端部を、ボディマウントブラケットを介してシャシーフレームに連結している構造が知られている（例えば、特許文献１参照）。 In the conventional vehicle front structure, fender aprons are arranged on both front sides of the body of the engine compartment, and on the inner side of the fender apron, the side that cooperates with these fender aprons to form a closed cross-sectional structure. A structure is known in which a portion reinforcing member is provided and the front and rear ends of the side reinforcing member are connected to the chassis frame via a body mount bracket (see, for example, Patent Document 1).

特開平７－２６７１３５号公報Japanese Unexamined Patent Publication No. 7-267135

しかしながら、上述した従来の車両前部構造においては、エンジンコンパートメント部のボディとシャシーフレームとがボディマウントブラケットないしボディマウント部材を介して連結されているに過ぎないので、ボディマウント固定部の剛性を高めることが難しく、車両前部の振動特性等の向上を図ることができないという問題を有していた。 However, in the conventional vehicle front structure described above, the body of the engine compartment and the chassis frame are only connected via the body mount bracket or the body mount member, so that the rigidity of the body mount fixing portion is increased. It was difficult to do so, and there was a problem that it was not possible to improve the vibration characteristics of the front part of the vehicle.

また、従来の車両前部構造においては、フェンダエプロンの内側部に側部補強部材を設ける構造であるので、車両前部の剛性向上が限定的である上、側部補強部材が必要となり、部品点数の増加とコスト高を招くという問題を有していた。 Further, in the conventional vehicle front structure, since the side reinforcing member is provided on the inner side of the fender apron, the rigidity improvement of the vehicle front is limited, and the side reinforcing member is required, which is a component. It had the problem of increasing the score and increasing the cost.

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、アッパーボディ及びボディマウント固定部の剛性を高め、車両前部の振動特性等を向上させ、ボディマウントへの入力を車両前部に効果的に分散させることが可能な車両前部構造を提供することにある。 The present invention has been made in view of such an actual situation, and an object thereof is to increase the rigidity of the upper body and the body mount fixing portion, improve the vibration characteristics of the front part of the vehicle, and input to the body mount. It is an object of the present invention to provide a vehicle front structure that can be effectively dispersed in the vehicle front.

上記目的を達成するため本発明に係る車両前部構造は、シャシーフレームとアッパーボディを有し、前記アッパーボディがボディマウントを介して前記シャシーフレーム上に固定され、前記アッパーボディの下部には、前記ボディマウントを固定するボディマウント固定部が配置されている車両前部構造において、前記ボディマウント固定部は、前記ボディマウントが固定される固定孔を有するマウント固定面と、該マウント固定面の車両幅方向に位置し、車両上下方向に延びる側壁部と、前記マウント固定面の車両前後方向に位置し、車両上下方向に延びる縦壁部とを備え、前記側壁部には、車両上下方向に延びる閉断面形状のブレース部材が接合されているとともに、前記縦壁部には、車両幅方向に延びる閉断面形状のクロスメンバが接合されおり、前記側壁部は、前記マウント固定面の固定孔に対し、車両幅方向内側に位置する内側側壁部と車両幅方向外側に位置する外側側壁部とから構成されており、前記内側側壁部には、前記ブレース部材が接合され、前記外側側壁部には、車両前後方向に延びる閉断面形状のエプロンサイドメンバが接合されている。 In order to achieve the above object, the vehicle front structure according to the present invention has a chassis frame and an upper body, the upper body is fixed on the chassis frame via a body mount, and a lower portion of the upper body is provided with a chassis frame and an upper body. In the vehicle front structure in which the body mount fixing portion for fixing the body mount is arranged, the body mount fixing portion has a mount fixing surface having a fixing hole for fixing the body mount and a vehicle having the mount fixing surface. A side wall portion located in the width direction and extending in the vertical direction of the vehicle and a vertical wall portion located in the vehicle front-rear direction of the mount fixing surface and extending in the vertical direction of the vehicle are provided, and the side wall portion extends in the vertical direction of the vehicle. A brace member having a closed cross section is joined, and a cross member having a closed cross section extending in the vehicle width direction is joined to the vertical wall portion, and the side wall portion is formed with respect to the fixing hole of the mount fixing surface. It is composed of an inner side wall portion located inside in the vehicle width direction and an outer side wall portion located outside in the vehicle width direction. An apron side member with a closed cross section extending in the front-rear direction of the vehicle is joined .

本発明によれば、アッパーボディ及びボディマウント固定部の剛性を高め、車両前部の振動特性等を向上させ、ボディマウントへの入力を車両前部に効果的に分散させることができる。
上述の如く、本発明に係る車両前部構造は、シャシーフレームとアッパーボディを有し、前記アッパーボディがボディマウントを介して前記シャシーフレーム上に固定され、前記アッパーボディの下部には、前記ボディマウントを固定するボディマウント固定部が配置されており、前記ボディマウント固定部は、前記ボディマウントが固定される固定孔を有するマウント固定面と、該マウント固定面の車両幅方向に位置し、車両上下方向に延びる側壁部と、前記マウント固定面の車両前後方向に位置し、車両上下方向に延びる縦壁部とを備え、前記側壁部には、車両上下方向に延びる閉断面形状のブレース部材が接合されているとともに、前記縦壁部には、車両幅方向に延びる閉断面形状のクロスメンバが接合されている。
したがって、本発明の車両前部構造では、ボディマウント固定部の周囲が壁部及び閉断面形状の部材によって囲まれることになるので、別途補強部材を用いることなく車両前部及びボディマウント固定部の剛性を容易に向上させることが可能となり、車両前部の振動特性等を高めることができるとともに、部品コストを低減できる。
また、本発明の車両前部構造においては、ボディマウント固定部と車両前部とが閉断面形状の部材で接続されているので、ボディマウントへの入力を車両前部に効果的に分散させることができ、ボディマウント固定部への応力の集中を防ぐことができるとともに、耐久性の向上を図ることができる。 According to the present invention, the rigidity of the upper body and the body mount fixing portion can be increased, the vibration characteristics of the front portion of the vehicle can be improved, and the input to the body mount can be effectively dispersed to the front portion of the vehicle.
As described above, the vehicle front structure according to the present invention has a chassis frame and an upper body, the upper body is fixed on the chassis frame via a body mount, and the lower part of the upper body is the body. A body mount fixing portion for fixing the mount is arranged, and the body mount fixing portion is located at a mount fixing surface having a fixing hole for fixing the body mount and a vehicle width direction of the mount fixing surface. A side wall portion extending in the vertical direction and a vertical wall portion extending in the vertical direction of the vehicle located in the vehicle front-rear direction of the mount fixing surface are provided, and a brace member having a closed cross section extending in the vertical direction of the vehicle is provided on the side wall portion. Along with being joined, a cross member having a closed cross section extending in the vehicle width direction is joined to the vertical wall portion.
Therefore, in the vehicle front structure of the present invention, the body mount fixing portion is surrounded by the wall portion and the member having a closed cross-sectional shape. The rigidity can be easily improved, the vibration characteristics of the front part of the vehicle can be improved, and the cost of parts can be reduced.
Further, in the vehicle front structure of the present invention, since the body mount fixing portion and the vehicle front portion are connected by a member having a closed cross-sectional shape, the input to the body mount can be effectively dispersed to the vehicle front portion. This makes it possible to prevent stress from concentrating on the body mount fixing portion and improve durability.

本発明の実施形態に係る車両前部構造が適用されたシャシーフレーム及びアッパーボディを車両前方側の斜め上方から見た斜視図である。It is a perspective view of the chassis frame and the upper body to which the vehicle front structure which concerns on embodiment of this invention are applied seen from diagonally above on the front side of a vehicle. 図１の車両前部において、車両左側に位置する前側ボディマウント固定部及びその周辺部を車両上方から見た断面図である。FIG. 1 is a cross-sectional view of the front body mount fixing portion located on the left side of the vehicle and its peripheral portion in the front portion of the vehicle of FIG. 1 as viewed from above the vehicle. 図２におけるＡ―Ａ線断面図である。FIG. 2 is a cross-sectional view taken along the line AA in FIG. 図２におけるＢ―Ｂ線断面図である。FIG. 2 is a cross-sectional view taken along the line BB in FIG.

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４は本発明の実施形態に係る車両前部構造を示すものである。なお、図において、矢印Ｆｒ方向は車両前方を示し、矢印Ｕ方向は車両上方を示し、矢印Ｘ方向は車両幅方向を示し、矢印Ｙ方向は車両前後方向を示している。 Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
1 to 4 show a vehicle front structure according to an embodiment of the present invention. In the figure, the arrow Fr direction indicates the front of the vehicle, the arrow U direction indicates the upper part of the vehicle, the arrow X direction indicates the vehicle width direction, and the arrow Y direction indicates the vehicle front-rear direction.

図１に示すように、本発明の実施形態に係る構造が適用される車両前部１は、主として、車両前後方向に沿って延び、かつパワーユニット搭載空間Ｓの下部で車両幅方向の左右両側にそれぞれ設けられるシャシーフレーム２と、パワーユニット搭載空間Ｓの上部に設けられるアッパーボディ３を有しており、該アッパーボディ３は、ボディマウント４０を介してシャシーフレーム２上に固定されている。そのため、アッパーボディ３の下部には、ボディマウント４０を固定するボディマウント固定部４が配置されている。 As shown in FIG. 1, the vehicle front portion 1 to which the structure according to the embodiment of the present invention is applied mainly extends along the vehicle front-rear direction, and is located on both the left and right sides in the vehicle width direction at the lower part of the power unit mounting space S. Each has a chassis frame 2 provided and an upper body 3 provided above the power unit mounting space S, and the upper body 3 is fixed on the chassis frame 2 via a body mount 40. Therefore, a body mount fixing portion 4 for fixing the body mount 40 is arranged below the upper body 3.

アッパーボディ３は、車両前部１の車両幅方向の左右両側に設けられるエプロンサイドメンバ３１及びフェンダエプロンパネル３２や、車両前部１の車両前方側に設けられるフードロックメンバ３３、ブレース部材３４及びクロスメンバ３５や、車両前部１の車両後方側に設けられるダッシュパネル３６及びダッシュサイドパネル３７、等によって構成されている。 The upper body 3 includes an apron side member 31 and a fender apron panel 32 provided on both left and right sides of the vehicle front portion 1 in the vehicle width direction, a hood lock member 33 provided on the vehicle front side of the vehicle front portion 1, a brace member 34, and the brace member 34. It is composed of a cross member 35, a dash panel 36 and a dash side panel 37 provided on the vehicle rear side of the vehicle front portion 1, and the like.

フードロックメンバ３３及びクロスメンバ３５は、車両幅方向に沿って延びており、フードロックメンバ３３は、クロスメンバ３５の上方位置で、クロスメンバ３５と平行して配置されている。そして、フードロックメンバ３３は、車両幅方向の左右両側に位置し、車両上下方向に延びるブレース部材３４の上端部に固定され、左右両側のブレース部材３４を橋渡しするように構成されている。これにより、後述する左右の前側ボディマウント固定部４Ａ同士が連接されるため、ボディマウント固定部４の剛性向上がより一層図られることになる。 The hood lock member 33 and the cross member 35 extend along the vehicle width direction, and the hood lock member 33 is arranged above the cross member 35 in parallel with the cross member 35. The hood lock member 33 is located on both the left and right sides in the vehicle width direction, is fixed to the upper end portion of the brace member 34 extending in the vertical direction of the vehicle, and is configured to bridge the brace members 34 on both the left and right sides. As a result, the left and right front body mount fixing portions 4A, which will be described later, are connected to each other, so that the rigidity of the body mount fixing portion 4 can be further improved.

本実施形態のボディマウント固定部４は、図１～図４に示すように、アッパーボディ３の車両前方側に配置される左右一対の前側ボディマウント固定部４Ａと、アッパーボディ３の車両後方側に配置される左右一対の後側ボディマウント固定部４Ｂとをそれぞれ備えて構成されている。なお、本実施形態の車両前部構造では、左右一対の前側ボディマウント固定部４Ａのうち、車両左側の前側ボディマウント固定部４Ａについて説明するが、車両右側の前側ボディマウント固定部４Ａも同様の構造に構成されているので、説明を省略する。 As shown in FIGS. 1 to 4, the body mount fixing portions 4 of the present embodiment include a pair of left and right front body mount fixing portions 4A arranged on the vehicle front side of the upper body 3 and a vehicle rear side of the upper body 3. It is configured to include a pair of left and right rear body mount fixing portions 4B arranged in each. In the vehicle front structure of the present embodiment, of the pair of left and right front body mount fixing portions 4A, the front body mount fixing portion 4A on the left side of the vehicle will be described, but the same applies to the front body mount fixing portion 4A on the right side of the vehicle. Since it is structured in a structure, the description thereof will be omitted.

前側ボディマウント固定部４Ａは、図２～図４に示すように、ボディマウント４０が長尺のボルトなどの締結具５等で固定される固定孔４１ａを有しており、平面視で略四角形のマウント固定面４１と、該マウント固定面４１の車両幅方向で左右両側に位置し、車両上下方向に延びる側壁部４２と、マウント固定面４１の車両前後方向で前後両側に位置し、車両上下方向に延びる縦壁部４３とを備えている。そして、側壁部４２及び縦壁部４３の上端は、ボディマウント４０がマウント固定面４１の固定孔４１ａに固定された状態で、ボディマウント４０の上部よりも高い位置となるように形成されている。すなわち、ボディマウント４０の周囲は、マウント固定面４１の固定孔４１ａに固定された状態で、左右の側壁部４２及び前後の縦壁部４３によって囲まれている。 As shown in FIGS. 2 to 4, the front body mount fixing portion 4A has a fixing hole 41a in which the body mount 40 is fixed by a fastener 5 or the like such as a long bolt, and is substantially rectangular in a plan view. The mount fixing surface 41 is located on both the left and right sides in the vehicle width direction of the mount fixing surface 41, and the side wall portions 42 extending in the vehicle vertical direction and the mount fixing surface 41 are located on both front and rear sides in the vehicle front-rear direction. It is provided with a vertical wall portion 43 extending in the direction. The upper ends of the side wall portion 42 and the vertical wall portion 43 are formed so as to be higher than the upper portion of the body mount 40 in a state where the body mount 40 is fixed to the fixing hole 41a of the mount fixing surface 41. .. That is, the periphery of the body mount 40 is surrounded by the left and right side wall portions 42 and the front and rear vertical wall portions 43 in a state of being fixed to the fixing hole 41a of the mount fixing surface 41.

車両内方側（車両中央側）の内側側壁部４２ａには、車両上下方向に延びる閉断面形状のブレース部材３４が接合されているとともに、車両前方側の縦壁部４３ａには、車両幅方向に延びる閉断面形状のクロスメンバ３５が接合されている。しかも、ブレース部材３４とクロスメンバ３５とは、互いに接合されている。これにより、ボディマウント４０間が異なる方向に延びる閉断面形状の部材に連結され、閉断面形状の部材同士が接合されているため、前側ボディマウント固定部４Ａは、より剛性の高い構造にすることが可能に構成されている。 A brace member 34 having a closed cross-sectional shape extending in the vertical direction of the vehicle is joined to the inner side wall portion 42a on the inner side of the vehicle (center side of the vehicle), and the vertical wall portion 43a on the front side of the vehicle is connected to the vertical wall portion 43a in the vehicle width direction. A cross member 35 having a closed cross-sectional shape extending to is joined. Moreover, the brace member 34 and the cross member 35 are joined to each other. As a result, the body mounts 40 are connected to the members having a closed cross-section extending in different directions, and the members having the closed cross-section are joined to each other. Therefore, the front body mount fixing portion 4A has a structure having higher rigidity. Is configured to be possible.

本実施形態の側壁部４２は、図２～図４に示すように、マウント固定面４１の固定孔４１ａに対し、車両幅方向内側に位置する内側側壁部４２ａと車両幅方向外側に位置する外側側壁部４２ｂとから構成されている。内側側壁部４２ａには、閉断面形状のブレース部材３４が接合され、外側側壁部４２ｂには、車両前後方向に延びる閉断面形状のエプロンサイドメンバ３１が接合されている。これにより、マウント固定面４１の固定孔４１ａに対し、内側側壁部４２ａに閉断面形状のブレース部材３４が設けられ、外側側壁部４２ｂに閉断面形状のエプロンサイドメンバ３１が設けられていることになり、前側ボディマウント固定部４Ａの剛性が更に向上されるようになっている。 As shown in FIGS. 2 to 4, the side wall portion 42 of the present embodiment has an inner side wall portion 42a located inside in the vehicle width direction and an outside side located outside in the vehicle width direction with respect to the fixing hole 41a of the mount fixing surface 41. It is composed of a side wall portion 42b. A brace member 34 having a closed cross section is joined to the inner side wall portion 42a, and an apron side member 31 having a closed cross section extending in the front-rear direction of the vehicle is joined to the outer side wall portion 42b. As a result, with respect to the fixing hole 41a of the mount fixing surface 41, the brace member 34 having a closed cross section is provided on the inner side wall portion 42a, and the apron side member 31 having a closed cross section is provided on the outer side wall portion 42b. Therefore, the rigidity of the front body mount fixing portion 4A is further improved.

また、本実施形態のクロスメンバ３５は、図２～図４に示すように、マウント固定面４１の固定孔４１ａの車両前方側に配置されており、クロスメンバ３５の後面３５ａとエプロンサイドメンバ３１の内側面３１ａとが、マウントサイド部材６によって連接されている。すなわち、マウントサイド部材６は、図２及び図４に示すように、閉断面形状のクロスメンバ３５と閉断面形状のエプロンサイドメンバ３１との間で、クロスメンバ３５及びエプロンサイドメンバ３１のそれぞれと連続して位置する閉断面形状を形成している。そのため、マウントサイド部材６は、断面略ハット型形状を有しており、上下フランジ部６ａ，６ｂが外側側壁部４２ｂに接合され、当該外側側壁部４２ｂを介してクロスメンバ３５の後面３５ａ及びエプロンサイドメンバ３１の内側面３１ａに連接されている。これにより、クロスメンバ３５及びエプロンサイドメンバ３１という閉断面構造体同士が閉断面形状を形成するマウントサイド部材６で連結されることになり、接合部の強度剛性が確保され、前側ボディマウント固定部４Ａの剛性が更に向上できるようになっている。 Further, as shown in FIGS. 2 to 4, the cross member 35 of the present embodiment is arranged on the vehicle front side of the fixing hole 41a of the mount fixing surface 41, and the rear surface 35a of the cross member 35 and the apron side member 31. 31a is connected to the inner side surface 31a of the above by a mount side member 6. That is, as shown in FIGS. 2 and 4, the mount side member 6 has the cross member 35 and the apron side member 31 between the cross member 35 having a closed cross section and the apron side member 31 having a closed cross section. It forms a continuously located closed cross-sectional shape. Therefore, the mount side member 6 has a substantially hat-shaped cross section, and the upper and lower flange portions 6a and 6b are joined to the outer side wall portion 42b, and the rear surface 35a and the apron of the cross member 35 are joined via the outer side wall portion 42b. It is connected to the inner side surface 31a of the side member 31. As a result, the closed cross-sectional structures called the cross member 35 and the apron side member 31 are connected by the mount side member 6 forming the closed cross-sectional shape, the strength and rigidity of the joint portion are secured, and the front body mount fixing portion is secured. The rigidity of 4A can be further improved.

したがって、本実施形態に係る車両前部１の構造では、前側ボディマウント固定部４Ａを中心にし、車両前後方向、車両幅方向及び車両上下方向に閉断面が延びており、前側ボディマウント固定部４Ａの周囲を閉断面形状の部分で囲まれていることになる。 Therefore, in the structure of the vehicle front portion 1 according to the present embodiment, the closed cross section extends in the vehicle front-rear direction, the vehicle width direction, and the vehicle vertical direction with the front side body mount fixing portion 4A as the center, and the front side body mount fixing portion 4A. Is surrounded by a closed cross-sectional shape.

本実施形態に係る車両前部１の構造において、図２に示すように、クロスメンバ３５の車両幅方向の外側端部３５ｂは、前側ボディマウント固定部４Ａの車両幅方向の外側端部４Ａａよりも距離Ｌだけ車両内側に位置している。そして、クロスメンバ３５の前面３５ｃは、車両中央部よりも車両外側に向かうに従って車両後方に位置する傾斜面３５ｄを有している。これによって、クロスメンバ３５の外側端部３５ｂが前側ボディマウント固定部４Ａの外側端部４Ａａよりも車両内側に位置することになり、クロスメンバ３５の外側に空間が確保されるようになっている。また、クロスメンバ３５における外側端部３５ｂの閉断面形状の断面積が傾斜面３５ｄによって小さく形成され、車両前方に緩衝空間となる空間が設けられることになり、歩行者との衝突時の閉断面部構造での衝撃エネルギーが低減されるようになっている。 In the structure of the vehicle front portion 1 according to the present embodiment, as shown in FIG. 2, the outer end portion 35b of the cross member 35 in the vehicle width direction is from the outer end portion 4Aa of the front body mount fixing portion 4A in the vehicle width direction. Is located inside the vehicle by a distance L. The front surface 35c of the cross member 35 has an inclined surface 35d located behind the vehicle toward the outside of the vehicle from the center of the vehicle. As a result, the outer end portion 35b of the cross member 35 is located inside the vehicle with respect to the outer end portion 4Aa of the front body mount fixing portion 4A, and a space is secured outside the cross member 35. .. Further, the cross-sectional area of the closed cross-sectional shape of the outer end portion 35b of the cross member 35 is formed small by the inclined surface 35d, and a space serving as a buffer space is provided in front of the vehicle, so that the closed cross-section at the time of a collision with a pedestrian is provided. The impact energy in the partial structure is reduced.

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。 Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications and modifications can be made based on the technical idea of the present invention.

１ 車両前部
２ シャシーフレーム
３ アッパーボディ
４ ボディマウント固定部
４Ａ 前側ボディマウント固定部
５ 締結具
６ マウントサイド部材
３１ エプロンサイドメンバ
３４ ブレース部材
３５ クロスメンバ
４０ ボディマウント
４１ マウント固定面
４１ａ 固定孔
４２ 側壁部
４２ａ 内側側壁部
４２ｂ 外側側壁部
４３ 縦壁部
４３ａ 車両前方側の縦壁部
５１ オーバーラップ部
５２ 係合部
５３ 係止片
６１ 被係止片部
６２ 凹部
６２ａ 差込孔
６３ クリップ
７１ 凸部
７１ａ 挿通孔
８１ ボルト
８２ 溶接ナット
Ｓ パワーユニット搭載空間 1 Vehicle front 2 Chassis frame 3 Upper body 4 Body mount fixing part 4A Front body mount fixing part 5 Fastener 6 Mount side member 31 Apron side member 34 Brace member 35 Cross member 40 Body mount 41 Mount fixing surface 41a Fixing hole 42 Side wall Part 42a Inner side wall 42b Outer side wall 43 Vertical wall 43a Vertical wall on the front side of the vehicle 51 Overlap 52 Engagement 53 Locking piece 61 Locked piece 62 Recessed 62a Insertion hole 63 Clip 71 Convex part 71a Insertion hole 81 Bolt 82 Welding nut S Power unit mounting space

Claims (3)

シャシーフレームとアッパーボディを有し、前記アッパーボディがボディマウントを介して前記シャシーフレーム上に固定され、
前記アッパーボディの下部には、前記ボディマウントを固定するボディマウント固定部が配置されている車両前部構造において、
前記ボディマウント固定部は、前記ボディマウントが固定される固定孔を有するマウント固定面と、該マウント固定面の車両幅方向に位置し、車両上下方向に延びる側壁部と、前記マウント固定面の車両前後方向に位置し、車両上下方向に延びる縦壁部とを備え、
前記側壁部には、車両上下方向に延びる閉断面形状のブレース部材が接合されているとともに、前記縦壁部には、車両幅方向に延びる閉断面形状のクロスメンバが接合されており、
前記側壁部は、前記マウント固定面の固定孔に対し、車両幅方向内側に位置する内側側壁部と車両幅方向外側に位置する外側側壁部とから構成されており、
前記内側側壁部には、前記ブレース部材が接合され、前記外側側壁部には、車両前後方向に延びる閉断面形状のエプロンサイドメンバが接合されていることを特徴とする車両前部構造。 It has a chassis frame and an upper body, and the upper body is fixed on the chassis frame via a body mount.
In the vehicle front structure in which a body mount fixing portion for fixing the body mount is arranged at the lower portion of the upper body.
The body mount fixing portion includes a mount fixing surface having a fixing hole for fixing the body mount, a side wall portion located in the vehicle width direction of the mount fixing surface and extending in the vertical direction of the vehicle, and a vehicle having the mount fixing surface. It is located in the front-rear direction and has a vertical wall that extends in the vertical direction of the vehicle.
A brace member having a closed cross section extending in the vertical direction of the vehicle is joined to the side wall portion, and a cross member having a closed cross section extending in the width direction of the vehicle is joined to the vertical wall portion.
The side wall portion is composed of an inner side wall portion located inside in the vehicle width direction and an outer side wall portion located outside in the vehicle width direction with respect to the fixing hole of the mount fixing surface.
The vehicle front structure is characterized in that the brace member is joined to the inner side wall portion, and an apron side member having a closed cross-sectional shape extending in the front-rear direction of the vehicle is joined to the outer side wall portion . 前記クロスメンバは、前記マウント固定面の固定孔の車両前方側に配置され、前記クロスメンバの後面と前記エプロンサイドメンバの内側面とが、マウントサイド部材によって連接され、
前記マウントサイド部材は、閉断面形状の前記クロスメンバと閉断面形状の前記エプロンサイドメンバとの間で、前記クロスメンバ及び前記エプロンサイドメンバのそれぞれと連続して位置する閉断面形状を形成していることを特徴とする請求項１に記載の車両前部構造。 The cross member is arranged on the vehicle front side of the fixing hole of the mount fixing surface, and the rear surface of the cross member and the inner surface of the apron side member are connected by a mount side member.
The mount side member forms a closed cross-sectional shape that is continuously positioned with each of the cross member and the apron side member between the cross member having a closed cross section and the apron side member having a closed cross section. The vehicle front structure according to claim 1 , wherein the vehicle front structure is provided. 前記クロスメンバの車両幅方向の外側端部は、前記ボディマウント固定部の車両幅方向の外側端部よりも車両内側に位置し、
前記クロスメンバの前面は、車両中央部よりも車両外側に向かうに従って車両後方に位置する傾斜面を有していることを特徴とする請求項１または請求項２に記載の車両前部構造。 The outer end portion of the cross member in the vehicle width direction is located inside the vehicle with respect to the outer end portion of the body mount fixing portion in the vehicle width direction.
The vehicle front structure according to claim 1 or 2 , wherein the front surface of the cross member has an inclined surface located behind the vehicle toward the outside of the vehicle from the center of the vehicle.
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