JP6954212B2 - Vehicle front body structure - Google Patents

Vehicle front body structure Download PDF

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JP6954212B2
JP6954212B2 JP2018069425A JP2018069425A JP6954212B2 JP 6954212 B2 JP6954212 B2 JP 6954212B2 JP 2018069425 A JP2018069425 A JP 2018069425A JP 2018069425 A JP2018069425 A JP 2018069425A JP 6954212 B2 JP6954212 B2 JP 6954212B2
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skeleton
reinforcing rib
frame
vehicle
damper
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JP2019177829A (en
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泰希 四柳
泰希 四柳
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Mazda Motor Corp
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Description

この発明は、サスペンションの上下両アーム及びダンパを支持する複数の骨格部が一体に構成された左右一対の骨格メンバを備えた車両の前部車体構造に関する。 The present invention relates to a front body structure of a vehicle including a pair of left and right skeleton members in which a plurality of skeleton portions supporting both upper and lower arms of the suspension and a damper are integrally formed.

従来の車両の前部車体構造としては、例えば、特許文献1に例示されるように、車両前後方向に延びる中空状であるとともに、その中間部にサスペンション支持部が設けられたフロントサイドフレーム(4)を備えたものが知られている。 As a conventional vehicle front body structure, for example, as illustrated in Patent Document 1, a front side frame (4) having a hollow shape extending in the front-rear direction of the vehicle and a suspension support portion provided in the middle portion thereof. ) Is known.

特許文献1のサスペンション支持部は、フロントサイドフレーム(4)の前後方向に延びる直線部分(4)の中間部と、該直線部分(4)の中間部に対して下方に離間して前後方向に延びるとともにその前後両端から直線部分(4)まで上方向に延びる車体側面視U字状のロアフレーム(4)とで、車体側面視で枠状に一体に構成したものである。 Suspension supporting portion of Patent Document 1, an intermediate portion of the linear portion extending in the longitudinal direction of the front side frame (4) (4 1), front and rear spaced downward with respect to the intermediate portion of the straight line portion (4 1) out from the front and rear ends extend in a direction between the linear portions (4 1) body is viewed from the side U-shaped lower frame (4 3) extending upward to, it is obtained by integrally formed in a frame shape when the body is viewed from the side.

そして、このサスペンション支持部は、直線部分(4)の中間部によってサスペンションのアッパアーム及びダンパを支持するとともに、ロアフレーム(4)によってサスペンションのロアアームを支持する構成としている。 Then, the suspension support unit to support the upper arm and the damper of the suspension by an intermediate portion of the straight portion (4 1) has a configuration for supporting the lower arm of the suspension by the lower frame (4 3).

すなわち、特許文献1の例えば、直線部分(4)の中間部は、アッパアーム及びダンパを支持可能な剛性となる板厚を備えて形成したり、取付け高さの異なるアッパアームとダンパとの双方を取付け可能に上下幅を有して形成されている。 That is, in Patent Document 1 for example, the middle portion of the straight portion (4 1), or formed with a thickness which becomes capable of supporting rigid upper arm and the damper, both the different upper arm and the damper of mounting height It is formed with a vertical width so that it can be attached.

しかしながらフロントサイドフレーム(4)は、その直線部分(4)が、サスペンション支持部に相当する中間部に対して前後各側へ延びる閉断面状(中空状)に一体に形成されたものである。 However the front side frame (4), the linear portion (4 1), and is formed integrally with the cross-sectionally closed shape (hollow) extending to each side before and after the intermediate portion corresponding to the suspension support portion ..

このため、フロントサイドフレーム(4)は、アッパアーム及びダンパを支持可能とすべく上述したように、車両の前面衝突時の衝撃吸収部材として用いることを想定した板厚よりも厚く形成したり、上下幅を確保して形成することを、サスペンション支持部としての中間部だけでなく、その前後両側を含めた前後方向全体に亘って形成する必要があり、車両の高重量化が懸念される。 Therefore, as described above, the front side frame (4) may be formed thicker than the plate thickness assumed to be used as a shock absorbing member at the time of a frontal collision of the vehicle, or may be formed up and down so as to be able to support the upper arm and the damper. It is necessary to secure the width and form it not only in the intermediate portion as the suspension support portion but also in the entire front-rear direction including both front and rear sides thereof, and there is a concern that the weight of the vehicle will be increased.

一方、フロントサイドフレーム(4)を例えば、直線部分(4)の前部、サスペンション支持部としての中間部、後部ごとに車両前後方向に分断して夫々を各部位に適した形状に強度を有して構成した場合には、分断した各部間で剛性差が生じるため、車両の前面衝突時にフロントサイドフレーム(4)の前側から後方への衝突荷重の伝達効率が不利になることが懸念される。 On the other hand, front side frames (4) For example, the strength anterior, intermediate as a suspension support portion, respectively and divided into each rear in the vehicle longitudinal direction in a shape suitable for each site of the linear portion (4 1) If it is configured, there is a concern that the efficiency of transmitting the collision load from the front side to the rear side of the front side frame (4) will be disadvantageous at the time of a frontal collision of the vehicle because a difference in rigidity will occur between the divided parts. NS.

特開平01−208279号公報Japanese Unexamined Patent Publication No. 01-208279

本発明はこのような課題に鑑みてなされたもので、高重量化することなく、サスペンションの支持剛性を高めつつ、車両の前面衝突時に衝突荷重を効率的に伝達することができる車両の前部車体構造の提供を目的とする。 The present invention has been made in view of such a problem, and the front part of the vehicle capable of efficiently transmitting the collision load at the time of a frontal collision of the vehicle while increasing the support rigidity of the suspension without increasing the weight. The purpose is to provide a vehicle body structure.

この発明は、サスペンションのアッパアーム、ロアアーム及びダンパを支持する骨格メンバと、上記骨格メンバの前面に接続され、車両前後方向に延びる衝撃吸収部材と、上記骨格メンバの後面に接続され、車両前後方向に延びるフレーム部材と、を備えた車両の前部車体構造であって、上記骨格メンバにおける、上記衝撃吸収部材の後端を接続する後端接続部と、フレーム部材の前端を接続する前端接続部との間に、前後方向に延びる補強リブが形成され、上記骨格メンバは、上記アッパアーム及び上記ダンパを支持する上側骨格部、上記ロアアームを支持する下側骨格部、上側/下側骨格部の前端同士及び後端同士を連結する前側骨格部及び後側骨格部を備えて枠状に構成されており、上記フレーム部材には、車室部側に備え、車両前後方向に延びるセンタトンネルフレームの前端から前方に向かって延び、上記上側骨格部の後端に接続されるセンタ側フレームを備えており、上記センタ側フレームは、その長手方向の前方へと延びる延長線が上記衝撃吸収部材の後端と交差するように前下方向に配設されたものである。 According to the present invention, a skeleton member that supports the upper arm, lower arm and damper of the suspension, a shock absorbing member that is connected to the front surface of the skeleton member and extends in the vehicle front-rear direction, and a shock absorbing member that is connected to the rear surface of the skeleton member and is connected to the vehicle front-rear direction. A front body structure of a vehicle including an extending frame member, a rear end connecting portion connecting the rear ends of the shock absorbing member and a front end connecting portion connecting the front ends of the frame member in the skeleton member. Reinforcing ribs extending in the front-rear direction are formed between the two, and the skeleton members are the upper skeleton portion supporting the upper arm and the damper, the lower skeleton portion supporting the lower arm, and the front ends of the upper / lower skeleton portions. It is configured in a frame shape with a front skeleton portion and a rear skeleton portion that connect the rear ends to each other, and the frame member is provided on the passenger compartment side and extends from the front end of the center tunnel frame extending in the vehicle front-rear direction. The center side frame is provided with a center side frame extending forward and connected to the rear end of the upper skeleton portion, and the center side frame has an extension line extending forward in the longitudinal direction thereof with the rear end of the shock absorbing member. It is arranged in the front-down direction so as to intersect .

上記構成によれば、サスペンションのアッパアーム、ロアアーム及びダンパを、衝撃吸収部材やフレーム部材とは独立した骨格メンバによって支持する構成を採用しても、骨格メンバを補強リブによって補強することによって、車両の前面衝突時の衝撃吸収部材からフレーム部材への骨格メンバを介した衝突荷重の伝達を効率的に行うことができる。
さらに、上記構成によれば、上記骨格メンバにおける、上記後端接続部と、上記センタ側フレーム前端接続部とが、上下方向に互いにオフセット(位置ずれ)した構成となっても、上述したように、上記センタ側フレームを前下方向に配設することにより、骨格メンバにおいて前突荷重を後端接続部から前端接続部へ効率よく伝達することができる。
According to the above configuration, even if the upper arm, lower arm and damper of the suspension are supported by a skeleton member independent of the shock absorbing member and the frame member, the skeleton member is reinforced by the reinforcing ribs to reinforce the vehicle. It is possible to efficiently transmit the collision load from the shock absorbing member to the frame member via the skeleton member at the time of a frontal collision.
Further, according to the above configuration, even if the rear end connection portion and the center side frame front end connection portion of the skeleton member are offset (misaligned) with each other in the vertical direction, as described above. By arranging the center-side frame in the front-down direction, the front collision load can be efficiently transmitted from the rear end connection portion to the front end connection portion in the skeleton member.

この発明の態様として、上記骨格メンバをアルミダイキャストで形成したものである。 As an aspect of the present invention, the skeleton member is formed by die-casting aluminum.

上記構成によれば、上記骨格メンバに補強リブを容易に形成することができる。 According to the above configuration, the reinforcing ribs can be easily formed on the skeleton member.

この発明の態様として、上記補強リブには、上記後端接続部と、上記前端接続部のうち、上記センタ側フレームの前端を接続するセンタ側フレーム前端接続部とを直線状に連結する第1の補強リブを備えたものである。 As aspect of the invention, the upper Symbol reinforcing ribs, and the rear connection portion, of the front connecting portion, the connecting linearly the center-side frame front connection portion connecting the front end of the center-side frame It is provided with 1 reinforcing rib.

上記構成によれば、上記骨格メンバにおける、上記後端接続部と、上記センタ側フレーム前端接続部とが、上下方向に互いにオフセット(位置ずれ)した構成となっても、上述したように、第1の補強リブを設けることにより、骨格メンバにおいて前突荷重を後端接続部から前端接続部へ効率よく伝達することができる。 According to the above configuration, even if the rear end connecting portion and the center side frame front end connecting portion of the skeleton member are offset (misaligned) with each other in the vertical direction, as described above , the first By providing the reinforcing rib of 1, the front collision load can be efficiently transmitted from the rear end connection portion to the front end connection portion in the skeleton member.

この発明の態様として、車室部側に、ヒンジピラーから前方に延設された前方延設メンバを備え、該前方延設メンバと上記骨格メンバとの間において前後方向に延びるサイド側フレームを備え、上記サイド側フレームは、その後端が上記前方延設メンバに接続されるとともに、前端が上記上側骨格部における、上記前端接続部の下方に隣接するサイド側フレーム前端接続部に接続され、上記補強リブは、上記衝撃吸収部材の上記後端接続部と、上記サイド側フレーム前端接続部とを直線状に連結する第2の補強リブを備えたものである。 As an aspect of the present invention, a front extension member extending forward from the hinge pillar is provided on the vehicle interior side, and a side frame extending in the front-rear direction between the front extension member and the skeleton member is provided. The rear end of the side frame is connected to the front extension member, and the front end is connected to the front end connecting portion of the side frame adjacent to the lower side of the front end connecting portion in the upper skeleton portion. Is provided with a second reinforcing rib that linearly connects the rear end connecting portion of the shock absorbing member and the front end connecting portion of the side frame.

上記構成によれば、衝撃吸収部材、骨格メンバ、サイド側フレームの順に伝達される前突荷重の伝達効率を高めることができる。 According to the above configuration, it is possible to increase the transmission efficiency of the front impact load transmitted in the order of the shock absorbing member, the skeleton member, and the side frame.

この発明の態様として、上記補強リブは、上記第1の補強リブの途中部位から上記第2の補強リブと交差し衝撃吸収部材の後端下端部に向かって直線的に延びる第3の補強リブを備えたものである。 As an aspect of the present invention, the reinforcing rib is a third reinforcing rib that intersects with the second reinforcing rib from an intermediate portion of the first reinforcing rib and extends linearly toward the lower end of the rear end of the shock absorbing member. It is equipped with.

上記構成によれば、前側骨格部から第1補強リブに連結される第3の補強リブを形成することで、前突荷重の伝達効率をさらに向上できる。 According to the above configuration, the transmission efficiency of the front impact load can be further improved by forming the third reinforcing rib connected from the front skeleton portion to the first reinforcing rib.

この発明の態様として、上記補強リブは、上記第1補強リブの上記途中部位から、上記ダンパを支持するダンパ支持部に向かって直線状に延びる第4の補強リブを備えたものである。 As aspect of the invention, the reinforcing ribs from the middle portion of said first reinforcing rib, in which a fourth reinforcing ribs extending straight toward the damper supporting section for supporting the damper.

上記構成によれば、衝撃吸収部材の後端接続部からセンタ側フレームの前端接続部への前突荷重の伝達性能をより高めつつ、ダンパの支持剛性も高めることができる。 According to the above configuration, it is possible to further improve the transmission performance of the front impact load from the rear end connection portion of the shock absorbing member to the front end connection portion of the center side frame, and also to increase the support rigidity of the damper.

この発明の態様として、上記補強リブは、上記衝撃吸収部材の後端下端部から上記下側骨格部に向かって直線状に延びる第5の補強リブを備えたものである。 As an aspect of the present invention, the reinforcing rib is provided with a fifth reinforcing rib that extends linearly from the lower end of the rear end of the shock absorbing member toward the lower skeleton.

上記構成によれば、前突荷重を衝撃吸収部材の後端接続部から上方だけでなく下方へも伝達することができる。 According to the above configuration, the front impact load can be transmitted not only upward but also downward from the rear end connection portion of the shock absorbing member.

さらに第3、第4の補強リブを設けた構成において、上述したダンパからの入力荷重を、これら第3、第4の補強リブと共に下側骨格部へも分散できる。
よって、前突荷重の伝達性能のダンパ支持剛性をより高めることができる。
Further, in the configuration in which the third and fourth reinforcing ribs are provided, the input load from the damper described above can be dispersed to the lower skeleton portion together with the third and fourth reinforcing ribs.
Therefore, the damper support rigidity of the front impact load transmission performance can be further increased.

この発明の態様として、上記フレーム部材には、サイドシルの前端から前方に向かって延び上記後側骨格部の後端に接続されるサイド側ロアフレームを備え、
上記補強リブは、上記下側骨格部の上縁と上記後側骨格部の前縁とのコーナー部から上記サイド側ロアフレームの下端位置に向かって延びる第6の補強リブ、及び上記上側骨格部の後部下端から上記サイド側ロアフレームの上端位置に向かって延びる第7の補強リブを備えたものである。
As an aspect of the present invention, the frame member includes a side lower frame extending forward from the front end of the side sill and connected to the rear end of the rear skeleton portion.
The reinforcing ribs are a sixth reinforcing rib extending from a corner portion between the upper edge of the lower skeleton portion and the leading edge of the rear skeleton portion toward the lower end position of the side lower frame portion, and the upper skeleton portion. It is provided with a seventh reinforcing rib extending from the lower end of the rear portion toward the upper end position of the side lower frame.

上記構成によれば、衝撃吸収部材の後端接続部からサイド側ロアフレームの前端接続部への前突荷重の伝達性能をより高めることができる。 According to the above configuration, it is possible to further improve the transmission performance of the front impact load from the rear end connection portion of the shock absorbing member to the front end connection portion of the side lower frame.

この発明の態様として、上記補強リブは、上記上側骨格部の後部下端から、上記ダンパを支持するダンパ支持部に向けて略直線状に延びる第8の補強リブを備えたものである。 As an aspect of the present invention, the reinforcing rib is provided with an eighth reinforcing rib extending substantially linearly from the lower end of the rear portion of the upper skeleton portion toward the damper support portion that supports the damper.

上記構成によれば、衝撃吸収部材の後端接続部からサイド側ロアフレームの前端接続部への前突荷重の伝達性能をより高めつつ、ダンパの支持剛性も高めることができる。 According to the above configuration, it is possible to further improve the transmission performance of the front impact load from the rear end connection portion of the shock absorbing member to the front end connection portion of the side lower frame, and also to increase the support rigidity of the damper.

この発明によれば、高重量化することなく、サスペンションの支持剛性を高めつつ、車両の前面衝突時に衝突荷重を効率的に伝達することができる。 According to the present invention, it is possible to efficiently transmit the collision load at the time of a frontal collision of the vehicle while increasing the support rigidity of the suspension without increasing the weight.

車両前方上方視におけるサスペンション支持構造体の要部を示す外観斜視図。The external perspective view which shows the main part of the suspension support structure in the vehicle front upper view. 本実施形態の車両の前部の要部を示す左側面図。The left side view which shows the main part of the front part of the vehicle of this embodiment. 本実施形態のサスペンション支持構造体の要部を示す正面図。The front view which shows the main part of the suspension support structure of this embodiment. 本実施形態の車両の前部の要部を示す車幅方向の中央縦断面図。The central longitudinal sectional view in the vehicle width direction which shows the main part of the front part of the vehicle of this embodiment. サスペンション支持構造体の右半分の要部を図4中のA−A線矢視断面により、左半分の要部を背面視して示した背面片断面図。The rear side cross-sectional view which showed the main part of the right half of the suspension support structure by the arrow view cross section of the line AA in FIG. 4, and the main part of the left half as a rear view. 本実施形態の車両の前部の要部を示す平面図。The plan view which shows the main part of the front part of the vehicle of this embodiment. 本実施形態の車両の前部の要部を示す底面図。The bottom view which shows the main part of the front part of the vehicle of this embodiment. 図4中のB−B線拡大断面図。FIG. 4 is an enlarged cross-sectional view taken along line BB in FIG. 図2中の要部拡大図。Enlarged view of the main part in FIG.

この発明の一実施形態を以下図面と共に説明する。
本実施形態の車両1の車体構造は、押出成形されたアルミ合金製の複数のフレームを連結して車体骨格をなす、所謂、スペースフレーム構造である。このような車両1の車体構造について、図1から図9を用いて説明する。
An embodiment of the present invention will be described below with reference to the drawings.
The vehicle body structure of the vehicle 1 of the present embodiment is a so-called space frame structure in which a plurality of extrusion-molded aluminum alloy frames are connected to form a vehicle body skeleton. Such a vehicle body structure of the vehicle 1 will be described with reference to FIGS. 1 to 9.

また、図示を明確にするため、図1中において車両右側、図2〜図4、図6および図7において車両左右両側、図5において車両左側のフロントサスペンション3の図示を夫々省略している。さらに図5ではフレーム部材5の図示を省略している。 Further, in order to clarify the illustration, the right side of the vehicle in FIG. 1, the left and right sides of the vehicle in FIGS. 2 to 4, 6 and 7, and the front suspension 3 on the left side of the vehicle in FIG. 5 are not shown. Further, in FIG. 5, the frame member 5 is not shown.

また、図中、矢印Fは車両前方を示し、矢印Rtは車両右側を示し、矢印Ltは車両左側を示し、矢印OUTは車幅方向外側を示し、矢印INは車幅方向内側を示すものとする。 Further, in the figure, the arrow F indicates the front of the vehicle, the arrow Rt indicates the right side of the vehicle, the arrow Lt indicates the left side of the vehicle, the arrow OUT indicates the outside in the vehicle width direction, and the arrow IN indicates the inside in the vehicle width direction. do.

本実施形態における車両1の車体構造は、図3に示すように、乗員が乗り込む車室部2と、車室部2よりも車両前方のエンジンルームに略相当する位置に配置されたフロントサスペンション3(以下、「サスペンション3」と略記する)を支持するサスペンション支持構造体4と、車室部2とサスペンション支持構造体4とを連結する複数のフレーム部材5と、サスペンション支持構造体4の前端に連結されるとともに、車両前方からの衝撃荷重を吸収する衝撃吸収構造体6とを備えている。 As shown in FIG. 3, the vehicle body structure of the vehicle 1 in the present embodiment includes the passenger compartment 2 on which the occupants board and the front suspension 3 arranged at positions substantially corresponding to the engine compartment in front of the vehicle compartment 2. At the front end of the suspension support structure 4, a plurality of frame members 5 for connecting the vehicle interior portion 2 and the suspension support structure 4, and a suspension support structure 4 (hereinafter, abbreviated as "suspension 3"). It is provided with a shock absorbing structure 6 that is connected and absorbs a shock load from the front of the vehicle.

車室部2は、図6に示すように、車幅方向に所定間隔を隔てた位置で、車両前後方向に延びる左右一対のサイドシル21と、サイドシル21の車両上方に配設された左右一対のフロントピラー22と、サイドシル21の前端、及びフロントピラー22の前端を車両上下方向に連結する左右一対のヒンジピラー23と、車幅方向略中央の位置において、車両前後方向に延びるセンタトンネルフレーム26およびトンネルサイドフレーム27(図7参照)と、衝撃吸収部材28と、左右のヒンジピラー23を車幅方向に連結して、車室内外を隔てる隔壁をなす隔壁部25としてのダッシュパネル251およびカウルパネル252とを備えている。 As shown in FIG. 6, the passenger compartment 2 includes a pair of left and right side sills 21 extending in the front-rear direction of the vehicle and a pair of left and right side sills 21 arranged above the vehicle at positions spaced apart from each other in the vehicle width direction. A pair of left and right hinge pillars 23 that connect the front pillar 22 and the front end of the side sill 21 and the front end of the front pillar 22 in the vehicle vertical direction, and a center tunnel frame 26 and a tunnel extending in the vehicle front-rear direction at a position approximately central in the vehicle width direction. The side frame 27 (see FIG. 7), the shock absorbing member 28, and the dash panel 251 and the cowl panel 252 as the partition wall portion 25 that connects the left and right hinge pillars 23 in the vehicle width direction to form a partition wall that separates the inside and outside of the vehicle interior. It has.

衝撃吸収部材28は、図2に示すように、オフセット衝突時に後退する前輪(図示略)を受け止めてその衝撃エネルギーを吸収するメンバであって、アーチ状のフロントホイルハウスの後壁(図示略)とヒンジピラー23との間において、サイドシル21の前部に対して上方で隣接して車両前後方向に配設されている。 As shown in FIG. 2, the shock absorbing member 28 is a member that receives the front wheels (not shown) retreating at the time of an offset collision and absorbs the impact energy, and is a rear wall (not shown) of the arch-shaped front foil house. The hinge pillar 23 is arranged above the front portion of the side sill 21 and adjacent to the hinge pillar 23 in the front-rear direction of the vehicle.

センタトンネルフレーム26は、図4、図6に示すように、フロアパネル201(図7参照)の車幅方向中央部から車室部2内方へ突出して車両の前後方向に延びるトンネル部200(フロアトンネル)(同図参照)の頂部に左右一対並設され、夫々頂部との間に車両前後方向に延びる閉断面を構成する。 As shown in FIGS. 4 and 6, the center tunnel frame 26 projects from the central portion of the floor panel 201 (see FIG. 7) in the vehicle width direction toward the inside of the passenger compartment 2 and extends in the front-rear direction of the vehicle. A pair of left and right sides are installed side by side on the top of the floor tunnel) (see the figure), and each forms a closed cross section extending in the front-rear direction of the vehicle between the top and the bottom.

トンネルサイドフレーム27は、図7に示すように、左右各側のフロアパネル201とトンネル部200との間に跨るようにして左右一対備え、これらフロアパネル201とトンネル部200との間に車両前後方向に延びる閉断面を構成する。 As shown in FIG. 7, a pair of left and right tunnel side frames 27 are provided so as to straddle between the floor panels 201 on each of the left and right sides and the tunnel portion 200, and the front and rear of the vehicle are provided between the floor panels 201 and the tunnel portion 200. It constitutes a closed cross section that extends in the direction.

また、サスペンション3は、図1に示すように、ダブルウィッシュボーン式サスペンション構造であって、車両1の前輪を回転自在に支持するナックル31と、車幅方向外側がナックル31の下部に連結され、車幅方向内側が車体に連結されたロアアーム32と、車幅方向外側がナックル31の上部に連結され、車幅方向内側が車体に連結されたアッパアーム33と、上端が車体に連結され、下端がロアアーム32に連結された伸縮可能なフロントサスダンパ34(以下、「ダンパ34」と称する)とで構成されている。 Further, as shown in FIG. 1, the suspension 3 has a double wishbone suspension structure, and is connected to a knuckle 31 that rotatably supports the front wheels of the vehicle 1 and an outer side in the vehicle width direction to the lower portion of the knuckle 31. The lower arm 32 with the inside in the vehicle width direction connected to the vehicle body, the upper arm 33 with the outside in the vehicle width direction connected to the upper part of the knuckle 31, and the upper arm 33 with the inside in the vehicle width direction connected to the vehicle body, and the upper end connected to the vehicle body and the lower end It is composed of a telescopic front suspension damper 34 (hereinafter, referred to as "damper 34") connected to the lower arm 32.

また、サスペンション支持構造体4は、図1に示すように、車幅方向に所定間隔を隔てて配置された左右一対の骨格メンバ41と、左右の骨格メンバ41の下端近傍を連結するサスクロス42と、サスクロス42よりも僅かに車両上方の位置で、左右の骨格メンバ41の下部を連結する下側クロスメンバ43と、左右の骨格メンバ41の上部を連結する上側クロスメンバ44と、上側クロスメンバ44に接合された左右一対のボックス部材45と、骨格メンバ41およびサスクロス42を連結する左右一対の傾斜フレーム46とで構成されている。 Further, as shown in FIG. 1, the suspension support structure 4 includes a pair of left and right skeleton members 41 arranged at predetermined intervals in the vehicle width direction, and a suspension cross 42 connecting the vicinity of the lower ends of the left and right skeleton members 41. , A lower cross member 43 connecting the lower parts of the left and right skeleton members 41, an upper cross member 44 connecting the upper parts of the left and right skeleton members 41, and an upper cross member 44 at a position slightly above the suspension cross 42. It is composed of a pair of left and right box members 45 joined to each other and a pair of left and right inclined frames 46 connecting the skeleton member 41 and the suspension cloth 42.

また、衝撃吸収構造体6は、図2、図4に示すように、左右の骨格メンバ41の前端に連結された左右一対の衝撃吸収部材61と、衝撃吸収部材61の前端を車幅方向に連結するフロントバンパービーム(図示略)とを備えている。 Further, as shown in FIGS. 2 and 4, the shock absorbing structure 6 has a pair of left and right shock absorbing members 61 connected to the front ends of the left and right skeleton members 41 and the front ends of the shock absorbing members 61 in the vehicle width direction. It is equipped with a front bumper beam (not shown) to be connected.

さらに、衝撃吸収構造体6は、左右一対の衝撃吸収部材61の下方において、左右の骨格メンバ41の後述する下側骨格部412の前面から前方へ延びるサブ衝撃吸収部材65(図2参照)と、左右各側のサブ衝撃吸収部材65の前端部を連結するように車幅方向に延びるサブフロントバンパービーム(図示略)とを備えている。 Further, the shock absorbing structure 6 has a sub-shock absorbing member 65 (see FIG. 2) extending forward from the front surface of the lower skeleton portion 412 described later of the left and right skeleton members 41 below the pair of left and right shock absorbing members 61. It is provided with a sub-front bumper beam (not shown) extending in the vehicle width direction so as to connect the front ends of the sub-shock absorbing members 65 on the left and right sides.

衝撃吸収部材61は、車両前後方向に延設されており、その車両前後方向の後端を除く全長に亘って、幅方向外側が開口した断面略M字状の開断面空間を有して繊維強化樹脂(当例では炭素繊維強化プラスチック)で形成されている。 The shock absorbing member 61 extends in the front-rear direction of the vehicle, and has an open cross-sectional space having a substantially M-shaped cross section that is open on the outside in the width direction over the entire length excluding the rear end in the front-rear direction of the vehicle. It is made of reinforced resin (carbon fiber reinforced plastic in this example).

衝撃吸収部材61の後端には、図2に示すように、骨格メンバ41の前面と連結する後端連結部613が略平板状に形成されている。後端連結部613は、衝撃吸収部材61の後方に開口する開断面空間を後端側から閉塞するように該衝撃吸収部材61の後端において車幅方向外側へ延設されている。 At the rear end of the shock absorbing member 61, as shown in FIG. 2, a rear end connecting portion 613 that connects to the front surface of the skeleton member 41 is formed in a substantially flat plate shape. The rear end connecting portion 613 extends outward in the vehicle width direction at the rear end of the shock absorbing member 61 so as to close the open cross-sectional space that opens behind the shock absorbing member 61 from the rear end side.

また図2、図4、図6、図7に示すように、フレーム部材5は、サイド側アッパフレーム51と、センタ側フレーム52と、サイド側フレーム53と、サイド側ロアフレーム54と、センタ側ロアフレーム55と、補強フレーム56とを夫々左右一対備えている。 Further, as shown in FIGS. 2, 4, 6, and 7, the frame member 5 includes a side upper frame 51, a center side frame 52, a side side frame 53, a side side lower frame 54, and a center side. A pair of left and right lower frames 55 and a reinforcing frame 56 are provided.

これらフレーム部材5(51〜56)は、いずれも押出成形された中空状に構成されており、補強フレーム56は、前方程上方に延在する一方で、該補強フレーム56以外のフレーム部材5(51〜55)は直線状に延在しており、左右各側において車室部2と骨格メンバ41とを連結する。 All of these frame members 5 (51 to 56) are formed in an extruded hollow shape, and while the reinforcing frame 56 extends upward toward the front, the frame members 5 other than the reinforcing frame 56 ( 51 to 55) extend linearly, and connect the passenger compartment 2 and the skeleton member 41 on each of the left and right sides.

引き続き、上述したサスペンション3、サスペンション支持構造体4、及びフレーム部材5の各構成要素について、さらに詳述する。
まず、サスペンション3は、上述したように、ナックル31、ロアアーム32、アッパアーム33、及びダンパ34で構成されている。
Subsequently, each component of the suspension 3, the suspension support structure 4, and the frame member 5 described above will be described in more detail.
First, as described above, the suspension 3 is composed of a knuckle 31, a lower arm 32, an upper arm 33, and a damper 34.

ナックル31は、アルミダイキャスト製であって、フロントハブを介して、車両1の前輪を回転自在に支持している。
ロアアーム32は、アルミダイキャスト製のアーム部材であって、ナックル31の下部に連結される部分を頂部とする平面視略A字状に形成されている。このロアアーム32は、車両前後方向を回動中心として揺動可能な状態で、骨格メンバ41に連結されている。
The knuckle 31 is made of die-cast aluminum and rotatably supports the front wheels of the vehicle 1 via a front hub.
The lower arm 32 is an aluminum die-cast arm member, and is formed in a substantially A-shape in a plan view with a portion connected to the lower part of the knuckle 31 as a top portion. The lower arm 32 is connected to the skeleton member 41 in a state where it can swing around the vehicle front-rear direction as a rotation center.

具体的には、ロアアーム32は、図1に示すように、ダンパ34よりも車両前方の位置で、骨格メンバ41に連結される前方連結部32aと、ダンパ34よりも車両後方の位置で、骨格メンバ41に連結される後方連結部32bとを、車幅方向内側端部に備えている。 Specifically, as shown in FIG. 1, the lower arm 32 has a skeleton at a position in front of the vehicle with respect to the damper 34, a front connecting portion 32a connected to the skeleton member 41, and a position behind the vehicle with respect to the damper 34. A rear connecting portion 32b connected to the member 41 is provided at the inner end portion in the vehicle width direction.

アッパアーム33は、アルミダイキャスト製のアーム部材であって、ナックル31の上部に連結される部分を頂部とする平面視略A字状に形成されている。このアッパアーム33は、車両前後方向を回動中心として揺動可能な状態で、骨格メンバ41に連結されている。 The upper arm 33 is an aluminum die-cast arm member, and is formed in a substantially A-shape in a plan view with a portion connected to the upper part of the knuckle 31 as a top. The upper arm 33 is connected to the skeleton member 41 in a state where it can swing around the vehicle front-rear direction as a rotation center.

具体的には、アッパアーム33は、図1に示すように、ダンパ34よりも車両前方の位置で、骨格メンバ41に連結される前方連結部33aと、ダンパ34よりも車両後方の位置で、骨格メンバ41に連結される後方連結部33bとを、車幅方向内側端部に備えている。 Specifically, as shown in FIG. 1, the upper arm 33 has a skeleton at a position in front of the vehicle with respect to the damper 34, a front connecting portion 33a connected to the skeleton member 41, and a position behind the vehicle with respect to the damper 34. A rear connecting portion 33b connected to the member 41 is provided at the inner end portion in the vehicle width direction.

ダンパ34は、図1に示すように、略車両上下方向に伸縮可能なダンパ本体部と、ダンパ本体部の伸縮に応じて伸縮するばね部とで一体構成されている。このダンパ34は、同図に示すように、その上端に位置する上方連結部34aが、骨格メンバ41に連結され、下端である下方連結部(図示省略)がロアアーム32に連結されている。 As shown in FIG. 1, the damper 34 is integrally composed of a damper main body that can be expanded and contracted substantially in the vertical direction of the vehicle and a spring portion that expands and contracts according to the expansion and contraction of the damper main body. As shown in the figure, the upper connecting portion 34a located at the upper end of the damper 34 is connected to the skeleton member 41, and the lower connecting portion (not shown) at the lower end is connected to the lower arm 32.

また、サスペンション支持構造体4は、上述したように、左右一対の骨格メンバ41、サスクロス42、下側クロスメンバ43、上側クロスメンバ44、左右一対のボックス部材45、及び左右一対の傾斜フレーム46で構成されている。 Further, as described above, the suspension support structure 4 includes a pair of left and right skeleton members 41, a suspension cross 42, a lower cross member 43, an upper cross member 44, a pair of left and right box members 45, and a pair of left and right inclined frames 46. It is configured.

骨格メンバ41は、図2、図6に示すように、車両1における前部車体を構成する車体骨格部材として車両1の前面衝突(前突)時に衝撃吸収構造体6から伝達される衝突荷重をフレーム部材5を介して車室部2側(車体後方)へ伝達するロードパスの一部を成す機能と、サスペンション3を揺動可能に支持する機能とを有するアルミダイキャスト製の部材である。 As shown in FIGS. 2 and 6, the skeleton member 41 receives a collision load transmitted from the shock absorbing structure 6 at the time of a frontal collision (front collision) of the vehicle 1 as a vehicle body skeleton member constituting the front vehicle body in the vehicle 1. It is an aluminum die-cast member having a function of forming a part of a load path transmitted to the vehicle interior portion 2 side (rear of the vehicle body) via the frame member 5 and a function of swingably supporting the suspension 3.

この骨格メンバ41は、図2、図4に示すように、車幅方向に所定の厚みを有する板状部分に、車幅方向内側、及び車幅方向外側へそれぞれ立設した複数の補強リブ70(71〜77)を有する骨格本体部41Aと、骨格本体部41Aの縁端に対して車幅方向の内外各側に突出して車幅方向の長さが骨格本体部41Aの厚みよりも幅広な略平板状に形成するとともに、骨格本体部41Aの縁端を囲繞した輪郭部41Bとで側面視で中央に開口41s(以下、「中央開口41s」と称する)(図2、図4参照)を有する枠状(略ロ字形状)に一体形成されている。 As shown in FIGS. 2 and 4, the skeleton member 41 has a plurality of reinforcing ribs 70 erected on a plate-like portion having a predetermined thickness in the vehicle width direction, respectively, on the inside in the vehicle width direction and on the outside in the vehicle width direction. The skeleton body portion 41A having (71 to 77) and the length in the vehicle width direction are wider than the thickness of the skeleton body portion 41A so as to project from the edge of the skeleton body portion 41A to the inside and outside in the vehicle width direction. In addition to being formed in a substantially flat plate shape, an opening 41s (hereinafter referred to as "central opening 41s") is formed in the center in a side view with a contour portion 41B surrounding the edge of the skeleton body portion 41A (see FIGS. 2 and 4). It is integrally formed in a frame shape (substantially square shape).

詳しくは、骨格メンバ41は、図2、図4に示すように、該骨格メンバ41の上枠を構成するように車両前後方向に延びる上側骨格部411、該骨格メンバ41の下枠を構成するように車両前後方向に延びる下側骨格部412、該骨格メンバ41の前枠を構成するように上側骨格部411と下側骨格部412との略前端同士を車両上下方向に連結する前側骨格部413、および該骨格メンバ41の後枠を構成するように上側骨格部411と下側骨格部412との略後端同士を車両上下方向に連結する後側骨格部414を備えて一体形成されている。 Specifically, as shown in FIGS. 2 and 4, the skeleton member 41 constitutes an upper skeleton portion 411 extending in the front-rear direction of the vehicle so as to form an upper frame of the skeleton member 41, and a lower frame of the skeleton member 41. The lower skeleton portion 412 extending in the front-rear direction of the vehicle, and the front skeleton portion connecting the substantially front ends of the upper skeleton portion 411 and the lower skeleton portion 412 in the vehicle vertical direction so as to form the front frame of the skeleton member 41. 413 and the rear skeleton portion 414 that connects the substantially rear ends of the upper skeleton portion 411 and the lower skeleton portion 412 in the vertical direction of the vehicle so as to form the rear frame of the skeleton member 41 are integrally formed. There is.

より詳しくは、上側骨格部411は、図2、図4に示すように、側面視において、車両上下方向の長さよりも車両前後方向の長さが長い側面視略矩形に形成され、さらにその前上コーナー部および後上コーナー部を側面視で面取り状に傾斜した形状で形成されている。 More specifically, as shown in FIGS. 2 and 4, the upper skeleton portion 411 is formed into a substantially rectangular side view in which the length in the vehicle front-rear direction is longer than the length in the vehicle vertical direction in the side view, and further in front of the upper skeleton portion 411. The upper corner portion and the rear upper corner portion are formed in a chamfered shape in a side view.

下側骨格部412も同様に、側面視において、車両上下方向の長さよりも車両前後方向の長さが長い側面視略矩形状に形成されている。一方、前側骨格部413および後側骨格部414は、側面視において、車両前後方向の長さよりも車両上下方向の長さが長い側面視略矩形状に形成されている。 Similarly, the lower skeleton portion 412 is also formed in a substantially rectangular shape in the side view, in which the length in the vehicle front-rear direction is longer than the length in the vehicle vertical direction in the side view. On the other hand, the front skeleton portion 413 and the rear skeleton portion 414 are formed in a substantially rectangular shape in the side view, in which the length in the vehicle vertical direction is longer than the length in the vehicle front-rear direction in the side view.

さらに、上側骨格部411と前側骨格部413とのコーナー部の内角側には、側面視三角形状に中央開口41sに向けて突出する前上内角側突片部41caが形成されている。同様に、上側骨格部411と後側骨格部414とのコーナー部の内角側には、側面視三角形状に中央開口41sに向けて突出する後上内角側突片部41cbが形成され、前側骨格部413と下側骨格部412とのコーナー部の内角側には、側面視三角形状に中央開口41sに向けて突出する前下内角側突片部41ccが形成されている。 Further, on the inner angle side of the corner portion of the upper skeleton portion 411 and the anterior skeleton portion 413, a front upper inner angle side projecting piece portion 41ca is formed so as to project toward the central opening 41s in a triangular shape in a lateral view. Similarly, on the inner angle side of the corner portion of the upper skeleton portion 411 and the posterior skeleton portion 414, a posterior upper internal angle side projecting piece portion 41 bb protruding toward the central opening 41s in a triangular shape in a lateral view is formed, and the anterior skeleton On the inner angle side of the corner portion of the portion 413 and the lower skeleton portion 412, a front lower inner angle side projecting piece portion 41cc is formed so as to project toward the central opening 41s in a triangular shape in a lateral view.

さらにまた図1、図3に示すように、上側骨格部411および前側骨格部413の各前面は、共に輪郭部41Bが形成されることによって、上下方向および車幅方向に連続して延びる縦壁状に形成されている。また、下側骨格部412は、その前端にサブ衝撃吸収部材65(図2参照)を取付け可能に、前側骨格部413の前面に対して前方へ延設されている。 Furthermore, as shown in FIGS. 1 and 3, each front surface of the upper skeleton portion 411 and the front skeleton portion 413 is a vertical wall that extends continuously in the vertical direction and the vehicle width direction due to the formation of the contour portion 41B. It is formed in a shape. Further, the lower skeleton portion 412 is extended forward with respect to the front surface of the front skeleton portion 413 so that the sub-shock absorbing member 65 (see FIG. 2) can be attached to the front end thereof.

このような骨格メンバ41のうち上側骨格部411には、図1、図2に示すように、その車幅方向外側の面であって、アッパアーム33を前後各側で支持するアッパアーム支持部82が設けられるとともに、ダンパ34の上端(ダンパトップ)を前後方向の中央部で支持するダンパ支持部83が設けられている。 As shown in FIGS. 1 and 2, the upper skeleton portion 411 of such a skeleton member 41 has an upper arm support portion 82 that is an outer surface in the vehicle width direction and supports the upper arm 33 on each of the front and rear sides. In addition to being provided, a damper support portion 83 is provided to support the upper end (damper top) of the damper 34 at the central portion in the front-rear direction.

具体的には図1、図2に示すように、アッパアーム支持部82は、アッパアーム33の前方連結部33a(図1参照)を、該前方連結部33aに挿通された車両前後方向に延びる軸部材(図示省略)を介して軸支されるアッパアーム前側支持部82fと、アッパアーム33の後方連結部33b(図1参照)を、該後方連結部33bに挿通された車両前後方向に延びる軸部材(図示省略)を介して軸支されるアッパアーム後側支持部82rとで構成されている。 Specifically, as shown in FIGS. 1 and 2, the upper arm support portion 82 is a shaft member that extends the front connecting portion 33a (see FIG. 1) of the upper arm 33 in the vehicle front-rear direction inserted through the front connecting portion 33a. An upper arm front support portion 82f pivotally supported via (not shown) and a rear connecting portion 33b (see FIG. 1) of the upper arm 33 are inserted into the rear connecting portion 33b and extend in the vehicle front-rear direction (not shown). It is composed of an upper arm rear support portion 82r that is pivotally supported via (omitted).

図2に示すように、アッパアーム前側支持部82fは、アッパアーム33の前方連結部33a(図1参照)に対して前側の前側締結部82faと後側の後側締結部82fbとによって骨格メンバ41の車幅方向外面に締結されている。 As shown in FIG. 2, the upper arm front support portion 82f is formed of the skeleton member 41 by the front fastening portion 82fa on the front side and the rear fastening portion 82fb on the rear side with respect to the front connecting portion 33a (see FIG. 1) of the upper arm 33. It is fastened to the outer surface in the vehicle width direction.

同様に図2に示すように、アッパアーム後側支持部82rは、アッパアーム33の後方連結部33b(図1参照)に対して前側の前側締結部82raと後側の後側締結部82rbとによって骨格メンバ41の車幅方向外面に締結されている。 Similarly, as shown in FIG. 2, the upper arm rear support portion 82r is skeletonized by the front fastening portion 82ra on the front side and the rear fastening portion 82rb on the rear side with respect to the rear connecting portion 33b (see FIG. 1) of the upper arm 33. It is fastened to the outer surface of the member 41 in the vehicle width direction.

アッパアーム前側支持部82fとアッパアーム後側支持部82rとは、略同じ高さで設けられている(図1、図2参照)。 The upper arm front support portion 82f and the upper arm rear support portion 82r are provided at substantially the same height (see FIGS. 1 and 2).

ダンパ支持部83は、図1、図2に示すように、ダンパ34の上方連結部34a(図1参照)を、該上方連結部34aに挿通された車両前後方向に延びる軸部材(図示省略)を介して軸支している。 As shown in FIGS. 1 and 2, the damper support portion 83 is a shaft member (not shown) that extends the upper connecting portion 34a (see FIG. 1) of the damper 34 in the vehicle front-rear direction inserted through the upper connecting portion 34a. It is pivotally supported via.

ダンパ支持部83は、図2に示すように、ダンパ34の上方連結部34a(図1参照)に対して前側の前側締結部83aと後側の後側締結部83bとによって骨格メンバ41の車幅方向外面に締結されている。 As shown in FIG. 2, the damper support portion 83 is a vehicle of the skeleton member 41 by the front fastening portion 83a on the front side and the rear fastening portion 83b on the rear side with respect to the upper connecting portion 34a (see FIG. 1) of the damper 34. It is fastened to the outer surface in the width direction.

ダンパ支持部83は、図2に示すように、上側骨格部411の前後各側のアッパアーム支持部82f,82rの車両前後方向の間であって、前後各側のアッパアーム支持部82f,82rおよび被後端連結部41fの上端に対して上方へオフセットした位置に設けられている。 As shown in FIG. 2, the damper support portion 83 is located between the upper arm support portions 82f, 82r on the front and rear sides of the upper skeleton portion 411 in the vehicle front-rear direction, and the upper arm support portions 82f, 82r and the cover on the front and rear sides. It is provided at a position offset upward with respect to the upper end of the rear end connecting portion 41f.

また上述した骨格メンバ41のうち下側骨格部412は、図1、図2に示すように、その車幅方向外側の面にロアアーム32を前後各側で支持するロアアーム支持部81が設けられている。 Further, as shown in FIGS. 1 and 2, the lower skeleton portion 412 of the above-mentioned skeleton member 41 is provided with a lower arm support portion 81 for supporting the lower arm 32 on each front and rear side on the outer surface in the vehicle width direction. There is.

具体的に、ロアアーム支持部81は、図1、図2に示すように、ロアアーム32の前方連結部32a(図1参照)を、該前方連結部32aに挿通された車両前後方向に延びる軸部材(図示省略)を介して軸支されるロアアーム前側支持部81fと、ロアアーム32の後方連結部32b(図1参照)を、該後方連結部32bに挿通された車両前後方向に延びる軸部材(図示省略)を介して軸支されるロアアーム後側支持部81rとで構成されている。 Specifically, as shown in FIGS. 1 and 2, the lower arm support portion 81 is a shaft member that extends the front connecting portion 32a (see FIG. 1) of the lower arm 32 in the vehicle front-rear direction inserted through the front connecting portion 32a. The lower arm front support portion 81f pivotally supported via (not shown) and the rear connecting portion 32b (see FIG. 1) of the lower arm 32 are inserted into the rear connecting portion 32b and extend in the vehicle front-rear direction (not shown). It is composed of a lower arm rear support portion 81r that is pivotally supported via (omitted).

図2に示すように、ロアアーム前側支持部81fは、ロアアーム32の前方連結部32a(図1参照)に対して前側の前側締結部81faと後側の後側締結部81fbとによって骨格メンバ41の車幅方向外面に締結されている。 As shown in FIG. 2, the lower arm front support portion 81f is formed of the skeleton member 41 by the front fastening portion 81fa on the front side and the rear fastening portion 81fb on the rear side with respect to the front connecting portion 32a (see FIG. 1) of the lower arm 32. It is fastened to the outer surface in the vehicle width direction.

同様に図2に示すように、ロアアーム後側支持部81rは、ロアアーム32の後方連結部32b(図1参照)に対して前側の前側締結部81raと後側の後側締結部81rbとによって骨格メンバ41の車幅方向外面に締結されている。 Similarly, as shown in FIG. 2, the lower arm rear support portion 81r is skeletonized by the front front fastening portion 81ra on the front side and the rear fastening portion 81rb on the rear side with respect to the rear connecting portion 32b (see FIG. 1) of the lower arm 32. It is fastened to the outer surface of the member 41 in the vehicle width direction.

ロアアーム前側支持部81fとロアアーム後側支持部81rとは、略同じ高さで設けられている(図1、図2参照)。 The lower arm front support portion 81f and the lower arm rear support portion 81r are provided at substantially the same height (see FIGS. 1 and 2).

また図2〜図5に示すように、上側骨格部411の上面、後上コーナー部の前上後下状の傾斜面、および後面は、フレーム部材5としてのサイド側アッパフレーム51、センタ側フレーム52およびサイド側フレーム53の各前端を接続するサイド側アッパフレーム被接合部41a(図2〜図4参照)、センタ側フレーム被接合部41b(図2、図3、図5参照)、サイド側フレーム被接合部41c(同図参照)として夫々形成されている。図2、図4、図5に示すように、後側骨格部414の下部後面は、フレーム部材5としてのサイド側ロアフレーム54の前端を接続するサイド側ロアフレーム被接合部41dとして形成され、また同図に示すように、下側骨格部412の後端はフレーム部材5としてのセンタ側ロアフレーム55の前端を接続するセンタ側ロアフレーム被接合部41eとして形成されている。 Further, as shown in FIGS. 2 to 5, the upper surface of the upper skeleton portion 411, the front upper rear lower inclined surface of the rear upper corner portion, and the rear surface are the side upper frame 51 as the frame member 5 and the center side frame. Side side upper frame joined portion 41a (see FIGS. 2 to 4) connecting the front ends of 52 and the side frame 53, center side frame joined portion 41b (see FIGS. 2, 3, and 5), side side Each is formed as a frame joined portion 41c (see the figure). As shown in FIGS. 2, 4, and 5, the lower rear surface of the rear skeleton portion 414 is formed as a side lower frame jointed portion 41d connecting the front ends of the side lower frame 54 as the frame member 5. Further, as shown in the figure, the rear end of the lower skeleton portion 412 is formed as the center side lower frame joined portion 41e connecting the front end of the center side lower frame 55 as the frame member 5.

これら被接合部41a〜41eは、各フレーム部材51〜55の前端を当接可能な当接面、または、嵌め込み可能な凹部が形成され、溶接等により接続している。 These jointed portions 41a to 41e are formed with a contact surface capable of contacting the front ends of the frame members 51 to 55 or recesses capable of being fitted, and are connected by welding or the like.

具体的に、サイド側アッパフレーム51は、前端が骨格メンバ41のサイド側アッパフレーム被接合部41aに接合され、後端がヒンジピラー23の上面前部に接合される(図2、図6参照)。センタ側フレーム52は、前端が骨格メンバ41のセンタ側フレーム被接合部41bに接合され、後端が車両前後方向の隔壁部25にてセンタトンネルフレーム26の前端に接合されている(図4、図6参照)。 Specifically, the front end of the side upper frame 51 is joined to the side upper frame joined portion 41a of the skeleton member 41, and the rear end is joined to the upper surface front portion of the hinge pillar 23 (see FIGS. 2 and 6). .. The front end of the center side frame 52 is joined to the center side frame joined portion 41b of the skeleton member 41, and the rear end is joined to the front end of the center tunnel frame 26 at the partition wall portion 25 in the vehicle front-rear direction (FIG. 4, FIG. (See FIG. 6).

サイド側フレーム53は、前端が骨格メンバ41のサイド側フレーム被接合部41cに接合され、後端が衝撃吸収部材28の前部に車幅方向内側から接合される(図2、図4参照)。サイド側ロアフレーム54は、前端が骨格メンバ41のサイド側ロアフレーム被接合部41dに接合され、後端がサイドシル21の前面に接合される(図2、図7参照)。センタ側ロアフレーム55は、前端が骨格メンバ41のセンタ側ロアフレーム被接合部41eに接合され、後端がトンネルサイドフレーム27の前端に接合される(図7参照)。
なお、左右一対のセンタ側ロアフレーム55の後部は、この間に車幅方向に延びるクロスメンバ29によって橋渡しされている(図7参照)。
The front end of the side frame 53 is joined to the side frame joined portion 41c of the skeleton member 41, and the rear end is joined to the front portion of the shock absorbing member 28 from the inside in the vehicle width direction (see FIGS. 2 and 4). .. The front end of the side lower frame 54 is joined to the side lower frame joined portion 41d of the skeleton member 41, and the rear end is joined to the front surface of the side sill 21 (see FIGS. 2 and 7). The front end of the center-side lower frame 55 is joined to the center-side lower frame joined portion 41e of the skeleton member 41, and the rear end is joined to the front end of the tunnel side frame 27 (see FIG. 7).
The rear portions of the pair of left and right center-side lower frames 55 are bridged between them by a cross member 29 extending in the vehicle width direction (see FIG. 7).

また図2、図7に示すように、補強フレーム56は、前端(上端)がサイド側アッパフレーム51の車両前後方向の中間部にその下面側から接合され、後端(下端)が衝撃吸収部材28の前面に接合される。さらに、図2に示すように、サイド側アッパフレーム被接合部41aは、上側骨格部411の上面における、ダンパ支持部83の直上部分に形成されている。
なお、図2等中の符号58は、サイド側フレーム53とサイド側ロアフレーム54とを車幅方向外側から連結する補強パネルである。
Further, as shown in FIGS. 2 and 7, the front end (upper end) of the reinforcing frame 56 is joined to the middle portion of the side upper frame 51 in the vehicle front-rear direction from the lower surface side thereof, and the rear end (lower end) is a shock absorbing member. Joined to the front of 28. Further, as shown in FIG. 2, the side upper frame jointed portion 41a is formed on the upper surface of the upper skeleton portion 411, directly above the damper support portion 83.
Reference numeral 58 in FIG. 2 and the like is a reinforcing panel that connects the side frame 53 and the side lower frame 54 from the outside in the vehicle width direction.

このような構成の骨格メンバ41の前面は、図1〜図4に示すように、上側骨格部411における車両上下方向略中央近傍から、前側骨格部413における車両上下方向略中央近傍に至る範囲を、衝撃吸収構造体6の衝撃吸収部材61(衝撃吸収部材61の後端連結部613)が連結される縦壁状の被後端連結部41fとして構成している。 As shown in FIGS. 1 to 4, the front surface of the skeleton member 41 having such a configuration covers a range from approximately the center of the upper skeleton portion 411 in the vertical direction of the vehicle to approximately the center of the front skeleton portion 413 in the vertical direction of the vehicle. , The shock absorbing member 61 of the shock absorbing structure 6 (rear end connecting portion 613 of the shock absorbing member 61) is connected as a vertical wall-shaped rear end connecting portion 41f.

すなわち図4に示すように、衝撃吸収部材61の被後端連結部41fは、上側骨格部411と前側骨格部413とに上下方向に跨った位置に構成されており、上側骨格部411の後部に設けたセンタ側フレーム被接合部41bに対して少なくとも一部が下方へオフセットした位置(すなわち、低い位置)に構成されている。 That is, as shown in FIG. 4, the rear end connecting portion 41f of the shock absorbing member 61 is configured at a position straddling the upper skeleton portion 411 and the front skeleton portion 413 in the vertical direction, and is configured at a position straddling the upper skeleton portion 411 in the vertical direction. At least a part of the center-side frame joined portion 41b provided in the above is configured at a position offset downward (that is, a low position).

上記センタ側フレーム52は、その長手方向の前方へと延びる延長線52xが衝撃吸収部材61の後端に位置する被後端連結部41fと交差するように前下後上状に傾斜した姿勢で配設されている。 The center-side frame 52 is in a posture of being inclined forward, downward, rearward and upward so that an extension line 52x extending forward in the longitudinal direction intersects a rear end connecting portion 41f located at the rear end of the shock absorbing member 61. It is arranged.

また、骨格メンバ41の被後端連結部41fには、図1〜図4、図8に示すように、後述する衝撃吸収構造体6の衝撃吸収部材61が取付けられるセットプレート47が接合されており、取付けプレート63を介して衝撃吸収部材61の後端連結部613が締結固定されている。 Further, as shown in FIGS. 1 to 4 and 8, a set plate 47 to which the shock absorbing member 61 of the shock absorbing structure 6 described later is attached is joined to the rear end connecting portion 41f of the skeleton member 41. The rear end connecting portion 613 of the shock absorbing member 61 is fastened and fixed via the mounting plate 63.

さらに上述した骨格メンバ41には、図2、図4に示すように、骨格メンバ41における、被後端連結部41fとセンタ側フレーム被接合部41bとの間に、前後方向に延びる補強リブ70(71〜77)が形成されている。 Further, as shown in FIGS. 2 and 4, the above-mentioned skeleton member 41 has a reinforcing rib 70 extending in the front-rear direction between the rear end connecting portion 41f and the center-side frame joined portion 41b in the skeleton member 41. (71-77) are formed.

補強リブ70は、図2、図4に示すように、車幅方向の内外各面に形成されているが、後述するように特に示す場合を除いて側面視で同じ箇所(対応する箇所)に形成されているため、車幅方向外面に形成したものに基づいて図9を参照しながら説明する。 As shown in FIGS. 2 and 4, the reinforcing ribs 70 are formed on the inner and outer surfaces in the vehicle width direction, but the reinforcing ribs 70 are formed at the same locations (corresponding locations) in the side view unless otherwise specified as described later. Since it is formed, it will be described with reference to FIG. 9 based on what is formed on the outer surface in the vehicle width direction.

補強リブ70には、骨格メンバ41における、被後端連結部41fと、該被後端連結部41fに対して少なくとも上部が上方へオフセットした位置に形成されたセンタ側フレーム被接合部41b(図4参照)とを直線状に連結する第1補強リブ71(71a,71b)を備えている。 The reinforcing rib 70 has a rear end connecting portion 41f of the skeleton member 41 and a center-side frame joined portion 41b formed at a position where at least the upper portion is offset upward with respect to the rear end connecting portion 41f (FIG. 4) is provided with first reinforcing ribs 71 (71a, 71b) that are linearly connected to each other.

第1補強リブ71は、共に車両前後方向に対して前下後上方向に傾斜して直線状に延びるとともに、互いに上下方向に間隔を隔てて平行に延びる第1上側補強リブ71aと第1下側補強リブ71bとを備えている。 Both the first reinforcing rib 71 is inclined in the front-lower-back-upward direction with respect to the vehicle front-rear direction and extends linearly, and the first upper reinforcing rib 71a and the first lower reinforcing rib 71 extend in parallel with each other at intervals in the vertical direction. It is provided with a side reinforcing rib 71b.

第1上側補強リブ71aは、ダンパ支持部83(当例では前側締結部83aと後側締結部83bとの間)を通過するように延び、被後端連結部41fの上端とセンタ側フレーム被接合部41b(図4参照)の上端とを連結する。 The first upper reinforcing rib 71a extends so as to pass through the damper support portion 83 (in this example, between the front fastening portion 83a and the rear fastening portion 83b), and extends to the upper end of the rear end connecting portion 41f and the center side frame cover. The upper end of the joint portion 41b (see FIG. 4) is connected.

第1下側補強リブ71bは、前後各側のアッパアーム支持部82f,82rの間を通過するように延び、被後端連結部41fの上下方向の中間位置とセンタ側フレーム被接合部41bの下部とを連結する。 The first lower reinforcing rib 71b extends so as to pass between the upper arm support portions 82f and 82r on each of the front and rear sides, and extends at an intermediate position in the vertical direction of the rear end connecting portion 41f and the lower portion of the center side frame joint portion 41b. And concatenate.

さらに補強リブ70は、被後端連結部41fとサイド側フレーム被接合部41cとを直線状に連結する第2補強リブ72を備えている。 Further, the reinforcing rib 70 includes a second reinforcing rib 72 that linearly connects the rear end connecting portion 41f and the side frame joined portion 41c.

第2補強リブ72は、上側骨格部411の下端に沿って車両前後方向に略水平に延び、被後端連結部41fの上下方向の中間部とサイド側フレーム被接合部41cの下端部とを連結する。 The second reinforcing rib 72 extends substantially horizontally in the vehicle front-rear direction along the lower end of the upper skeleton portion 411, and connects the intermediate portion in the vertical direction of the rear end connecting portion 41f and the lower end portion of the side frame joined portion 41c. Link.

さらに補強リブ70は、被後端連結部41fの下端部から、車両前後方向に略水平に延びる第2補強リブ72と交差し第1下側補強リブ71bの途中部位に向かって直線的に延びる第3補強リブ73を備えている。 Further, the reinforcing rib 70 intersects the second reinforcing rib 72 extending substantially horizontally in the vehicle front-rear direction from the lower end portion of the rear end connecting portion 41f, and extends linearly toward the intermediate portion of the first lower reinforcing rib 71b. A third reinforcing rib 73 is provided.

第3補強リブ73は、その延伸方向の一部に中央開口41sの周縁部のうち前上内角側突片部41caの後下端(先端)部分が含まれ、該前上内角側突片部41caの後下端に沿って第1補強リブ71よりも急峻な勾配で前下後上状に延びて、前後各側のアッパアーム支持部82f,82rの間において第1下側補強リブ71bに連結する。 The third reinforcing rib 73 includes the rear lower end (tip) portion of the front upper inner angle side projecting piece portion 41ca of the peripheral edge portion of the central opening 41s in a part in the extending direction, and the front upper inner angle side projecting piece portion 41ca. Along the rear lower end, it extends in a front lower rear upper shape with a steeper slope than the first reinforcing rib 71, and is connected to the first lower reinforcing rib 71b between the upper arm support portions 82f and 82r on each of the front and rear sides.

さらに補強リブ70は、第1下側補強リブ71bの上記途中部から上記ダンパ支持部83に向かって直線状に延びる第4補強リブ74を備えている。当例では第4補強リブ74は、第1下側補強リブ71bにおける第3補強リブ73の連結部からダンパ支持部83の後側締結部83bに達するまで延びている。 Further, the reinforcing rib 70 includes a fourth reinforcing rib 74 extending linearly from the intermediate portion of the first lower reinforcing rib 71b toward the damper support portion 83. In this example, the fourth reinforcing rib 74 extends from the connecting portion of the third reinforcing rib 73 in the first lower reinforcing rib 71b until it reaches the rear fastening portion 83b of the damper support portion 83.

すなわち、第3補強リブ73と第4補強リブ74とは、被後端連結部41fの下端部からダンパ支持部83まで連続して直線状に延び、これら被後端連結部41fの下端部とダンパ支持部83とを連結する。 That is, the third reinforcing rib 73 and the fourth reinforcing rib 74 extend continuously and linearly from the lower end portion of the rear end connecting portion 41f to the damper support portion 83, and are connected to the lower end portion of the rear end connecting portion 41f. The damper support portion 83 is connected.

さらに補強リブ70は、被後端連結部41fの下端部から下側骨格部412に向かって直線状に延びる第5補強リブ75を備えている。第5補強リブ75は、その延伸方向の一部に中央開口41sの周縁部のうち前下内角側突片部41ccの後上端(先端)部分が含まれ、該前下内角側突片部41ccの後上端に沿って前上後下状に延び、下側骨格部412の上端を越えて下端に達するまで延びている。第5補強リブ75の後下端は、前側骨格部413の後端よりも後方に位置する。 Further, the reinforcing rib 70 includes a fifth reinforcing rib 75 extending linearly from the lower end portion of the rear end connecting portion 41f toward the lower skeleton portion 412. The fifth reinforcing rib 75 includes the rear upper end (tip) portion of the front lower inner angle side projecting piece portion 41cc in the peripheral portion of the central opening 41s in a part in the extending direction, and the front lower inner angle side projecting piece portion 41cc. It extends in an anterior, superior, posterior, and inferior manner along the posterior upper end, beyond the upper end of the lower skeleton portion 412 until it reaches the lower end. The rear lower end of the fifth reinforcing rib 75 is located behind the rear end of the front skeleton portion 413.

さらに補強リブ70は、下側骨格部412の上縁と後側骨格部414の前縁とのコーナー部からサイド側ロアフレーム被接合部41dの下端部に向かって車両前後方向に対して前上後下に若干傾斜して直線状に延びる第6補強リブ76を備えている。 Further, the reinforcing rib 70 is forward and upward with respect to the vehicle front-rear direction from the corner portion between the upper edge of the lower skeleton portion 412 and the front edge of the rear skeleton portion 414 toward the lower end portion of the side lower frame joint portion 41d. It is provided with a sixth reinforcing rib 76 that is slightly inclined downward and extends linearly.

さらに補強リブ70は、上側骨格部411の後部下端からサイド側ロアフレーム被接合部41dの上端位置に向かって直線状に延びる第7補強リブ77(77a,77b)を備えている。 Further, the reinforcing rib 70 includes seventh reinforcing ribs 77 (77a, 77b) extending linearly from the lower end of the rear portion of the upper skeleton portion 411 toward the upper end position of the side lower frame joined portion 41d.

第7補強リブ77は、共に車両前後方向に対して前上後下方向に傾斜して直線状に延びるとともに、互いに上下方向に間隔を隔てて平行に延びる第7上側補強リブ77aと第7下側補強リブ77bとを備えている。 The seventh reinforcing rib 77 is inclined in the front-up-rear-downward direction with respect to the vehicle front-rear direction and extends linearly, and the seventh upper reinforcing rib 77a and the seventh lower reinforcing rib 77a extend in parallel with each other in the vertical direction at intervals. It is provided with a side reinforcing rib 77b.

第7上側補強リブ77aは、前上端が、車両前後方向に水平に延びる第2補強リブ72の後部に連結され、後下端がサイド側ロアフレーム被接合部41dの上端かつ前部(前端よりも若干後方)位置に連結されている。 The front upper end of the seventh upper reinforcing rib 77a is connected to the rear portion of the second reinforcing rib 72 extending horizontally in the vehicle front-rear direction, and the rear lower end is the upper end and the front portion (than the front end) of the side lower frame jointed portion 41d. It is connected to the position (slightly behind).

第7下側補強リブ77bは、その延伸方向の一部に中央開口41sの周縁部のうち後上内角側突片部41cbの前下端(先端)部分が含まれ、該後上内角側突片部41cbの前下端に沿って前上後下状に延び、前上端が車両前後方向に水平に延びる第2補強リブ72の後部に連結され、後下端がサイド側ロアフレーム被接合部41dの上端かつ前端位置に連結されている。 The seventh lower reinforcing rib 77b includes the front lower end (tip) portion of the rear upper inner angle side projecting piece portion 41 kb of the peripheral edge portion of the central opening 41s in a part in the extending direction, and the rear upper inner angle side projecting piece The front upper end extends in a front upper rear lower shape along the front lower end of the portion 41 bb, the front upper end is connected to the rear portion of the second reinforcing rib 72 extending horizontally in the vehicle front-rear direction, and the rear lower end is the upper end of the side lower frame joint portion 41d. And it is connected to the front end position.

さらに補強リブ70は、上側骨格部411の後部下端から上記ダンパ支持部83に向けて略直線状に延びる第8補強リブ78(78a,78b)を備えている。 Further, the reinforcing rib 70 includes eighth reinforcing ribs 78 (78a, 78b) extending substantially linearly from the lower end of the rear portion of the upper skeleton portion 411 toward the damper support portion 83.

第8補強リブ78は、共に車両前後方向に対して前上後下方向に傾斜して直線状に延びるとともに、互いに上下方向に間隔を隔てて平行に延びる第8上側補強リブ78aと第8下側補強リブ78bとを備えている。 The eighth reinforcing rib 78 is inclined in the front-up-back-downward direction with respect to the vehicle front-rear direction and extends linearly, and the eighth upper reinforcing rib 78a and the eighth lower reinforcing rib 78a extend in parallel with each other at intervals in the vertical direction. It is provided with a side reinforcing rib 78b.

第8上側補強リブ78aは、第2補強リブ72における第7上側補強リブ77aの連結部からダンパ支持部83(当例では後側締結部83b)に達するまで延びている。なお、第8上側補強リブ78aは、ダンパ支持部83に達するまでの途中でアッパアーム後側支持部82r(前側締結部82a)および第1下側補強リブ71bと交差するように延びている。 The eighth upper reinforcing rib 78a extends from the connecting portion of the seventh upper reinforcing rib 77a in the second reinforcing rib 72 until it reaches the damper support portion 83 (in this example, the rear fastening portion 83b). The eighth upper reinforcing rib 78a extends so as to intersect the upper arm rear support portion 82r (front fastening portion 82a) and the first lower reinforcing rib 71b on the way to reach the damper support portion 83.

第8下側補強リブ78bは、第2補強リブ72における第7下側補強リブ77bの連結部からダンパ支持部83(当例では前側締結部83a)に達するまで延びている。なお、第8下側補強リブ78bは、ダンパ支持部83に達するまでの途中で第1下側補強リブ71b、第4補強リブ74および第1上側補強リブ71aと交差するように延びている。 The eighth lower reinforcing rib 78b extends from the connecting portion of the seventh lower reinforcing rib 77b in the second reinforcing rib 72 until it reaches the damper support portion 83 (in this example, the front fastening portion 83a). The eighth lower reinforcing rib 78b extends so as to intersect the first lower reinforcing rib 71b, the fourth reinforcing rib 74, and the first upper reinforcing rib 71a on the way to reach the damper support portion 83.

すなわち、上下各側の第7補強リブ77と第8補強リブ78とは、サイド側ロアフレーム被接合部41dの上端部からダンパ支持部83まで連続して直線状に延び、これらサイド側ロアフレーム被接合部41dの上端部とダンパ支持部83とを連結する。 That is, the 7th reinforcing rib 77 and the 8th reinforcing rib 78 on the upper and lower sides continuously extend linearly from the upper end portion of the side lower frame jointed portion 41d to the damper support portion 83, and these side side lower frames. The upper end portion of the jointed portion 41d and the damper support portion 83 are connected.

その他にも図9に示すように、骨格メンバ41の車幅方向の外面には補強リブ70としてダンパ支持部83と骨格メンバ41の上端とを連結するように直線状に延びる第9〜第12補強リブ79a〜79dが設けられている。 In addition, as shown in FIG. 9, the ninth to twelfth skeleton members 41 extend linearly on the outer surface in the vehicle width direction as reinforcing ribs 70 so as to connect the damper support portion 83 and the upper end of the skeleton member 41. Reinforcing ribs 79a to 79d are provided.

これら第9〜第12補強リブ79a〜79dのうち、第9補強リブ79aおよび第10補強リブ79bは、ダンパ支持部83の後側締結部83bから上方へ延び、第11補強リブ79cおよび第12補強リブ79dは、ダンパ支持部83の前側締結部83aから上方へ延びている。そして、第10補強リブ79bおよび第11補強リブ79cは、骨格メンバ41の上端に対して側面視でサイド側アッパフレーム被接合部41aに対応する位置で連結されている。 Of these ninth to twelfth reinforcing ribs 79a to 79d, the ninth reinforcing rib 79a and the tenth reinforcing rib 79b extend upward from the rear fastening portion 83b of the damper support portion 83, and the eleventh reinforcing rib 79c and the twelfth The reinforcing rib 79d extends upward from the front fastening portion 83a of the damper support portion 83. The tenth reinforcing rib 79b and the eleventh reinforcing rib 79c are connected to the upper end of the skeleton member 41 at a position corresponding to the side upper frame jointed portion 41a in a side view.

骨格メンバ41の車幅方向の内面にも上述したとおり補強リブ70が形成されている。これら車幅方向の内面に形成した補強リブ70のうち、車幅方向の外面に形成され補強リブ70と同じ構成のものは同一の符号を付してその説明を省略し、異なる構成について図4を用いて説明する。 Reinforcing ribs 70 are also formed on the inner surface of the skeleton member 41 in the vehicle width direction as described above. Among these reinforcing ribs 70 formed on the inner surface in the vehicle width direction, those having the same configuration as the reinforcing rib 70 formed on the outer surface in the vehicle width direction are designated by the same reference numerals and the description thereof will be omitted. Will be described using.

骨格メンバ41の車幅方向の内面における、第1上側補強リブ71a’は、被後端連結部41fの上端とダンパ支持部83(当例では前側締結部83a)に車両側面視で対応する位置を連結するように直線状に延びる第1上前側補強リブ71af’と、上側クロスメンバ44の後壁部44aの上端位置とセンタ側フレーム被接合部41bの中間位置を連結するように直線状に延びる第1上後側補強リブ71ar’とで構成される。すなわち、第1上後側補強リブ71ar’は、第1上前側補強リブ71af’に対して下方へオフセットするようにダンパ支持部83(後側締結部83b)の下方において延びている。 The position of the first upper reinforcing rib 71a'on the inner surface of the skeleton member 41 in the vehicle width direction corresponds to the upper end of the rear end connecting portion 41f and the damper support portion 83 (in this example, the front fastening portion 83a) in the vehicle side view. The first upper front side reinforcing rib 71af'extending linearly so as to connect the upper end position of the rear wall portion 44a of the upper cross member 44 and the intermediate position of the center side frame joined portion 41b are linearly connected. It is composed of an extending first upper rear side reinforcing rib 71ar'. That is, the first upper rear reinforcing rib 71ar'extends below the damper support portion 83 (rear fastening portion 83b) so as to offset downward with respect to the first upper front reinforcing rib 71af'.

第1下側補強リブ71b’は、側面視で上側クロスメンバ44の後壁部44aの上下方向中間位置とセンタ側フレーム被接合部41bの下部とを連結するように前下後上状に直線状に延びている。 The first lower reinforcing rib 71b'is a straight line in a front lower rear upper shape so as to connect the vertical intermediate position of the rear wall portion 44a of the upper cross member 44 and the lower portion of the center side frame joined portion 41b in a side view. It extends like a shape.

また、骨格メンバ41の車幅方向の内面には、車幅方向の外面に形成されているような、第8下側補強リブ78b(図9参照)および第9〜第12補強リブ79a〜79d(同図参照)は形成していない(図4参照)。 Further, on the inner surface of the skeleton member 41 in the vehicle width direction, the eighth lower reinforcing rib 78b (see FIG. 9) and the ninth to twelfth reinforcing ribs 79a to 79d, which are formed on the outer surface in the vehicle width direction, are formed. (See FIG. 4) is not formed (see FIG. 4).

続いて、サスペンション支持構造体4のうち骨格メンバ41以外の構成について説明する。
サスクロス42は、アルミダイキャスト製であって、図7に示すように、下側骨格部412の下部を車幅方向に連結する平面視略H字状に形成されている。
Subsequently, the configurations of the suspension support structure 4 other than the skeleton member 41 will be described.
The suspension cloth 42 is made of die-cast aluminum, and as shown in FIG. 7, is formed in a substantially H-shape in a plan view connecting the lower portions of the lower skeleton portion 412 in the vehicle width direction.

サスクロス42は、図4、図5に示すように、上壁部42aと、該上壁部42aの底面視外側縁部から下方へ延びて該サスクロス42の左右両側面、前面および後面を形成する縦壁部42bを有して内部に下方へ向けて開口する空間を有して車幅方向に延在している。 As shown in FIGS. 4 and 5, the suspension cloth 42 extends downward from the upper wall portion 42a and the outer side edge of the upper wall portion 42a as seen from the bottom surface to form the left and right side surfaces, the front surface, and the rear surface of the suspension cloth 42. It has a vertical wall portion 42b and has a space that opens downward inward and extends in the vehicle width direction.

下側クロスメンバ43は、図1、図3、図4に示すように、押出し成型されたアルミ合金製の押出部材であって、特に図4に示すように、上下方向に間隔を隔てて対向する上壁部43aと下壁部43bとを有する略矩形の閉断面を車幅方向に延設した略筒状体に形成されている。この下側クロスメンバ43は、図1〜図5に示すように、骨格メンバ41の下側骨格部412の車幅方向内面側であって、図1に示すように、ロアアーム前側支持部81fと車幅方向で対向する部分に接合されている。 The lower cross member 43 is an extruded aluminum alloy extruded member as shown in FIGS. 1, 3 and 4, and particularly, as shown in FIG. 4, faces each other at intervals in the vertical direction. It is formed in a substantially cylindrical body having a substantially rectangular closed cross section having an upper wall portion 43a and a lower wall portion 43b extending in the vehicle width direction. As shown in FIGS. 1 to 5, the lower cross member 43 is on the inner surface side of the lower skeleton portion 412 of the skeleton member 41 in the vehicle width direction, and as shown in FIG. It is joined to the parts facing each other in the vehicle width direction.

これにより、下側クロスメンバ43は、図1に示すように、サスクロス42の前部において該サスクロス42に対して上方に隣接配置されている。すなわち、図4に示すように、サスクロス42と下側クロスメンバ43とは、該下側クロスメンバ43の下壁部43bと該サスクロス42の上壁部42aとが当接するように上下各側に並設されている。 As a result, as shown in FIG. 1, the lower cross member 43 is arranged adjacent to the suspension cross 42 at the front portion of the suspension cross 42. That is, as shown in FIG. 4, the suspension cloth 42 and the lower cross member 43 are placed on the upper and lower sides so that the lower wall portion 43b of the lower cross member 43 and the upper wall portion 42a of the suspension cloth 42 are in contact with each other. It is installed side by side.

そして図1、図3、図4に示すように、サスクロス42と下側クロスメンバ43とは、車幅方向の中央部および両外側部の3箇所においてボルト等によって締結されており、それぞれ車幅方向の右側から左側へ右側締結部Ta、中央締結部Tb、左側締結部Tcに設定する。
中央締結部Tbについて詳述すると、図4、図5に示すように、サスクロス42の上壁部42aにおける前部の車幅方向中央部には、ボルト挿通孔42h(所謂バカ穴)が上下方向に貫通形成されている。
As shown in FIGS. 1, 3, and 4, the suspension cross 42 and the lower cross member 43 are fastened with bolts or the like at three locations in the central portion and both outer portions in the vehicle width direction, and the vehicle widths are respectively provided. From the right side to the left side in the direction, the right side fastening part Ta, the central fastening part Tb, and the left side fastening part Tc are set.
The central fastening portion Tb will be described in detail. As shown in FIGS. 4 and 5, a bolt insertion hole 42h (so-called stupid hole) is vertically formed in the front portion of the upper wall portion 42a of the suspension cloth 42 in the vehicle width direction. It is formed through through.

一方図4に示すように、下側クロスメンバ43の下壁部43bおよび上壁部43aにおける車幅方向の中央部(平面視でボルト挿通孔に対応する部位)には、それぞれボルト挿通孔43h、ナット挿通孔43iが貫通形成されている。 On the other hand, as shown in FIG. 4, the bolt insertion holes 43h are located in the lower wall portion 43b and the upper wall portion 43a of the lower cross member 43 in the vehicle width direction (the portion corresponding to the bolt insertion hole in the plan view), respectively. , The nut insertion hole 43i is formed through.

そして、下側クロスメンバ43の内部空間には、ボス状のナットNaがナット挿通孔43iに嵌挿された状態で、下壁部43bから上方向に延びる起立姿勢で下壁部43bのボルト挿通孔43hの周縁から立設されている。 Then, in the internal space of the lower cross member 43, the boss-shaped nut Na is inserted into the nut insertion hole 43i, and the bolt is inserted into the lower wall portion 43b in an upright posture extending upward from the lower wall portion 43b. It is erected from the peripheral edge of the hole 43h.

これにより、サスクロス42および下側クロスメンバ43の夫々の車幅方向の中央部において、サスクロス42の上壁部42aに形成したボルト挿通孔42h、下側クロスメンバ43の下壁部43bに形成したボルト挿通孔43h、およびナットNa内部のボルト挿通孔Nahが上下方向に連通する(図4参照)。 As a result, the bolt insertion holes 42h formed in the upper wall portion 42a of the suspension cross 42 and the lower wall portion 43b of the lower cross member 43 are formed in the central portions of the suspension cross 42 and the lower cross member 43 in the vehicle width direction. The bolt insertion hole 43h and the bolt insertion hole Nah inside the nut Na communicate with each other in the vertical direction (see FIG. 4).

そして、ボルトをこれらボルト挿通孔42h,43h,Nahに下方から挿通することでサスクロス42と下側クロスメンバ43とを一体に締結固定している。
なお、右側締結部Taおよび左側締結部Tcについても中央締結部Tbと同様の構成であるため、その説明は省略する。
Then, the suspension cloth 42 and the lower cross member 43 are integrally fastened and fixed by inserting the bolts into the bolt insertion holes 42h, 43h, and Nah from below.
Since the right side fastening portion Ta and the left side fastening portion Tc have the same configuration as the central fastening portion Tb, the description thereof will be omitted.

上側クロスメンバ44は、図1、図3〜図6、図8の特に図4、図8に示すように、押出し成形されたアルミ合金製の押出部材であって、略矩形の閉断面を車幅方向に延設した略筒状体に形成されている。この上側クロスメンバ44は、図1、図8に示すように、骨格メンバ41における車幅方向の内面側であって、アッパアーム前側支持部82fと車幅方向内側で対向する部分に接合されている。
このように、上側クロスメンバ44をアッパアーム前側支持部82fに車幅方向内側で対向する部分に接合することで、アッパアーム前側支持部82fによるアッパアーム33の支持剛性を車幅方向内側から高めている。
The upper cross member 44 is an extruded aluminum alloy extruded member as shown in FIGS. 1, 3 to 6, and 8 in particular, 4 and 8, and has a substantially rectangular closed cross section. It is formed in a substantially tubular body extending in the width direction. As shown in FIGS. 1 and 8, the upper cross member 44 is joined to a portion of the skeleton member 41 that faces the inner surface side in the vehicle width direction and faces the upper arm front side support portion 82f in the vehicle width direction. ..
In this way, by joining the upper cross member 44 to the portion facing the upper arm front side support portion 82f on the inside in the vehicle width direction, the support rigidity of the upper arm 33 by the upper arm front side support portion 82f is increased from the inside in the vehicle width direction.

ボックス部材45は、図8に示すように、押出し成型されたアルミ合金製の押出部材であって、前面が、車幅方向内側に対して、車幅方向外側が車両後方に位置する段付き形状に形成されている。 As shown in FIG. 8, the box member 45 is an extruded aluminum alloy extruded member, and has a stepped shape in which the front surface is located on the inside in the vehicle width direction and the outside in the vehicle width direction is located on the rear side of the vehicle. Is formed in.

このような構成のボックス部材45は、その後面が上側クロスメンバ44の前面に接合され、前面のうち車幅方向外側の面452が骨格メンバ41における被後端連結部41fの後面に接合され、車幅方向内側の面451がセットプレート47の後面に接合されている。 The rear surface of the box member 45 having such a configuration is joined to the front surface of the upper cross member 44, and the outer surface 452 of the front surface in the vehicle width direction is joined to the rear surface of the rear end connecting portion 41f of the skeleton member 41. The inner surface 451 in the vehicle width direction is joined to the rear surface of the set plate 47.

左右一対の傾斜フレーム46は、図1、図3〜図5、図8に示すように、押出し成型されたアルミ合金製の押出部材であって、略矩形の閉断面を所定方向に延設した略筒状体に形成されており、特に図1、図3、図5に示すように、下端部同士が車幅方向に近接状態で突き合うように配置されるとともに上方程互いの間隔が広がるように傾斜して正面視でV字状に配置されている。 As shown in FIGS. 1, 3 to 5, and 8, the pair of left and right inclined frames 46 are extruded aluminum alloy extruded members, and a substantially rectangular closed cross section is extended in a predetermined direction. It is formed in a substantially tubular body, and as shown in FIGS. 1, 3, and 5, the lower ends are arranged so as to be in close proximity to each other in the vehicle width direction, and the distance between them increases toward the upper side. It is tilted so as to be arranged in a V shape when viewed from the front.

そして、傾斜フレーム46は、図1、図4、図5、図6に示すように、骨格メンバ41の車幅方向内面側における、ダンパ支持部83と車幅方向で対向する部分に上端が取付ブラケット147を介して接合され、サスクロス42における車幅方向略中央、かつ下側クロスメンバ43後側近傍の位置に、取付ブラケット48を介して下端が接合されている。
このように、傾斜フレーム46の上端をダンパ支持部83に車幅方向内側で対向する部分に接合することで(図1参照)、ダンパ支持部83fによるダンパ34の支持剛性を車幅方向内側から高めている。
Then, as shown in FIGS. 1, 4, 5, and 6, the upper end of the inclined frame 46 is attached to a portion of the skeleton member 41 facing the damper support portion 83 in the vehicle width direction on the inner surface side in the vehicle width direction. It is joined via the bracket 147, and the lower end is joined via the mounting bracket 48 at a position substantially in the center of the suspension cross 42 in the vehicle width direction and near the rear side of the lower cross member 43.
In this way, by joining the upper end of the inclined frame 46 to the portion facing the damper support portion 83 on the inner side in the vehicle width direction (see FIG. 1), the support rigidity of the damper 34 by the damper support portion 83f is increased from the inner side in the vehicle width direction. I'm raising it.

ここで、傾斜フレーム46の下端をサスクロス42の車幅方向略中央に接合する取付ブラケット48は、図4、図5のうち特に図5中のX部拡大部分に示すように、平面視矩形に形成した平板状のベース部481と、該ベース部481の車両前後方向の中央部に対して傾斜フレーム46の車両前後方向幅を隔てた各側から立設した前後一対のガイド部482とで一体に形成されている。 Here, the mounting bracket 48 for joining the lower end of the inclined frame 46 to the substantially center of the suspension cloth 42 in the vehicle width direction has a rectangular shape in a plan view as shown in the enlarged portion of the X portion in FIGS. 4 and 5. The formed flat plate-shaped base portion 481 and a pair of front and rear guide portions 482 erected from each side of the inclined frame 46 with respect to the central portion of the base portion 481 in the vehicle front-rear direction are integrated. Is formed in.

傾斜フレーム46は、その下部の前後各面が前後一対のガイド部482に当接するように、前後一対のガイド部482の間に嵌め込まれた状態で、これらガイド部482との各当接面において互いに溶接等によって接合されている。 The inclined frame 46 is fitted between the pair of front and rear guide portions 482 so that the front and rear surfaces of the lower portion of the inclined frame 46 abut against the pair of front and rear guide portions 482. They are joined to each other by welding or the like.

さらに、取付ブラケット48のベース部481には、サスクロス42の上壁部42aにボルト等により締結する複数のボルト挿通孔48aが貫通形成されている(図5中のX部拡大部分参照)。 Further, a plurality of bolt insertion holes 48a to be fastened to the upper wall portion 42a of the suspension cloth 42 by bolts or the like are formed through the base portion 481 of the mounting bracket 48 (see the enlarged portion of the X portion in FIG. 5).

具体的には図4〜図7に示すように、ボルト挿通孔48aは、ベース部481の車両前後方向における前後一対のガイド部482よりも内側かつ車幅方向の中間側に位置する左右各側の箇所と、平面視で矩形のベース部481の4隅に位置する合計6箇所に形成されている。 Specifically, as shown in FIGS. 4 to 7, the bolt insertion holes 48a are located on the left and right sides of the base portion 481 inside the pair of front and rear guide portions 482 in the vehicle front-rear direction and on the intermediate side in the vehicle width direction. And a total of 6 locations located at the 4 corners of the rectangular base portion 481 in a plan view.

一方図5、図7に示すように、サスクロス42の上壁部42aにおける、取付ブラケット48側の複数のボルト挿通孔48aと底面視で対応する部位には、ボルト挿通孔42iが形成され(図7参照)、それぞれボルト挿通孔48aと連通する。そして取付ブラケット48は、サスクロス42の上壁部42aにボルト等を用いて締結固定されている。 On the other hand, as shown in FIGS. 5 and 7, bolt insertion holes 42i are formed in the upper wall portion 42a of the suspension cloth 42 at a portion corresponding to the plurality of bolt insertion holes 48a on the mounting bracket 48 side in terms of bottom view (FIG. 5). 7), each communicates with the bolt insertion hole 48a. The mounting bracket 48 is fastened and fixed to the upper wall portion 42a of the suspension cloth 42 by using bolts or the like.

これにより図4に示すように、傾斜フレーム46の下端部は、取付ブラケット48を介して上述した中央締結部Tbの後側近傍位置(後側隣接位置)に取り付けられている。 As a result, as shown in FIG. 4, the lower end portion of the inclined frame 46 is attached to the above-mentioned central fastening portion Tb at a position near the rear side (adjacent position on the rear side) via the mounting bracket 48.

さらに、傾斜フレーム46は、上側クロスメンバ44に対し後方で隣接する位置に配設されている。 Further, the inclined frame 46 is arranged at a position adjacent to the upper cross member 44 at the rear.

詳しくは、傾斜フレーム46は、上側クロスメンバ44に対して上側に位置するダンパ支持部83と、下側に位置するサスクロス42とを連結するようにこれらの間に橋渡しされるため、車幅方向に延びる上側クロスメンバ44に対して後方で上下方向に横切る(交差する)ように延びる(図1、図3、図5参照)。 Specifically, since the inclined frame 46 is bridged between the damper support portion 83 located on the upper side of the upper cross member 44 and the suspension cross 42 located on the lower side so as to be connected to each other, the vehicle width direction Extends so as to cross (intersect) in the vertical direction behind the upper cross member 44 extending to (see FIGS. 1, 3, and 5).

より詳しくは、ダンパ支持部83は、上述したアッパアーム前側支持部82fに対して上方かつ後方にオフセットした近傍位置(隣接位置)に備えている。このため、側面視でダンパ支持部83に対応する位置から下方へ延びる傾斜フレーム46は、左右一対のアッパアーム前側支持部82fを車幅方向に橋渡しする上側クロスメンバ44に対して後方の近傍位置にて上下方向に横切るように延びる。 More specifically, the damper support portion 83 is provided at a nearby position (adjacent position) offset upward and rearward with respect to the above-mentioned upper arm front support portion 82f. Therefore, the inclined frame 46 extending downward from the position corresponding to the damper support portion 83 in the side view is located near the rear of the upper cross member 44 that bridges the pair of left and right upper arm front support portions 82f in the vehicle width direction. Extends across the vertical direction.

当例では、傾斜フレーム46と上側クロスメンバ44とが正面視でラップ(交差)する位置においては、傾斜フレーム46の前壁部46aと上側クロスメンバ44の後壁部44aとが互いに当接し、正面視でラップする位置において互いに連結されている。 In this example, at the position where the inclined frame 46 and the upper cross member 44 wrap (intersect) in a front view, the front wall portion 46a of the inclined frame 46 and the rear wall portion 44a of the upper cross member 44 come into contact with each other. They are connected to each other in a frontal wrap position.

具体的には、図4、図8に示すように、傾斜フレーム46と上側クロスメンバ44とが正面視でラップ(交差)する位置においては、上側クロスメンバ44の後壁部44aと傾斜フレーム46の前壁部46aとには互いに前後方向に連通するボルト挿通孔44h,46hが夫々貫通形成されている。
図8に示すように、傾斜フレーム46の前壁部46aの後面における、該前壁部46aに形成したボルト挿通孔46hの周縁には、ウェルダナットNbが溶着されている。
Specifically, as shown in FIGS. 4 and 8, at the position where the inclined frame 46 and the upper cross member 44 wrap (intersect) in the front view, the rear wall portion 44a of the upper cross member 44 and the inclined frame 46 46. Bolt insertion holes 44h and 46h that communicate with each other in the front-rear direction are formed through the front wall portion 46a of the above.
As shown in FIG. 8, a weld nut Nb is welded to the peripheral surface of the bolt insertion hole 46h formed in the front wall portion 46a on the rear surface of the front wall portion 46a of the inclined frame 46.

さらに図1、図3、図8の特に図8に示すように、上側クロスメンバ44の前壁部44bにおける、後壁部44aに設けたボルト挿通孔44hに対向する部分及びその周辺部分には、ボルト締結等の作業用貫通孔44i(サービスホール)が車両前後方向に貫通形成されている。 Further, as shown in FIGS. 1, 3 and 8, especially in FIG. 8, in the front wall portion 44b of the upper cross member 44, the portion facing the bolt insertion hole 44h provided in the rear wall portion 44a and the peripheral portion thereof , Work through holes 44i (service holes) for bolt fastening and the like are formed through in the front-rear direction of the vehicle.

そして、上側クロスメンバ44の後壁部44aと傾斜フレーム46の前壁部46aとウェルダナットNbの各ボルト挿通孔46h,44h,Nbhに作業用貫通孔44iを通じて前方側からボルトを挿通することによって傾斜フレーム46は、上述したように上側クロスメンバ44の後面に締結固定されている。 Then, by inserting bolts from the front side through the working through holes 44i into the bolt insertion holes 46h, 44h, and Nb of the rear wall portion 44a of the upper cross member 44, the front wall portion 46a of the inclined frame 46, and the welder nut Nb. The inclined frame 46 is fastened and fixed to the rear surface of the upper cross member 44 as described above.

以上のように、本実施形態の車両1の前部車体構造は、図2、図4、図6、図7に示すように、サスペンション3のアッパアーム33、ロアアーム32及びダンパ34を支持する骨格メンバ41と、骨格メンバ41の前面に接続され、車両前後方向に延びる衝撃吸収部材61と、骨格メンバ41の後面に接続され、車両前後方向に延びるフレーム部材5(51〜55)と、を備えた車両1の前部車体構造であって、骨格メンバ41における、衝撃吸収部材61の後端連結部613(後端)を接続する被後端連結部41f(後端接続部)(図2、図4参照)と、フレーム部材5(51〜55)の前端を接続する被接合部41a〜41e(前端接続部)(図4参照)との間に、前後方向に延びる補強リブ70(71〜79)が形成されたものである(図2、図4、図9参照)。 As described above, the front body structure of the vehicle 1 of the present embodiment is a skeleton member that supports the upper arm 33, the lower arm 32, and the damper 34 of the suspension 3, as shown in FIGS. 2, 4, 6, and 7. 41, a shock absorbing member 61 connected to the front surface of the skeleton member 41 and extending in the vehicle front-rear direction, and a frame member 5 (51 to 55) connected to the rear surface of the skeleton member 41 and extending in the vehicle front-rear direction. Rear end connecting portion 41f (rear end connecting portion) connecting the rear end connecting portion 613 (rear end) of the shock absorbing member 61 in the skeleton member 41 in the front vehicle body structure of the vehicle 1 (FIGS. 2, FIG. 4) and the jointed portions 41a to 41e (front end connecting portions) (see FIG. 4) connecting the front ends of the frame members 5 (51 to 55), the reinforcing ribs 70 (71 to 79) extending in the front-rear direction. ) Is formed (see FIGS. 2, 4, and 9).

上記構成によれば、衝撃吸収部材61やフレーム部材5とは独立した骨格メンバ41によってサスペンション3のサスペンション部品としてのアッパアーム33、ロアアーム32及びダンパ34を支持する構成を採用することにより、骨格メンバ41のみならず衝撃吸収部材61やフレーム部材5についてまでサスペンション支持剛性を有して構成する必要がなく、サスペンション部品を支持する骨格メンバ41に、集中的にサスペンション支持剛性をもたせ易くなる。 According to the above configuration, the skeleton member 41 supports the upper arm 33, the lower arm 32, and the damper 34 as suspension parts of the suspension 3 by the skeleton member 41 independent of the shock absorbing member 61 and the frame member 5. Not only that, it is not necessary to configure the shock absorbing member 61 and the frame member 5 to have suspension support rigidity, and it becomes easy to intensively give suspension support rigidity to the skeleton member 41 that supports the suspension parts.

よって、サスペンション部品の支持剛性を高めつつ、車体前部を軽量化を図ることができる。 Therefore, it is possible to reduce the weight of the front part of the vehicle body while increasing the support rigidity of the suspension parts.

さらに、骨格メンバ41を衝撃吸収部材61やフレーム部材5とは独立して構成することで、これら部材41,61,5間の剛性差、すなわち骨格メンバ41における、衝撃吸収部材61の後端連結部613を接続する被後端連結部41fと、フレーム部材5(51〜55)の前端を接続する被接合部41a〜41eとの間で剛性差が生じることになっても、骨格メンバ41に補強リブ70を形成することで、前突時に衝撃吸収部材61からフレーム部材5への骨格メンバ41を介した衝突荷重の伝達を効率的に行うことができる。 Further, by configuring the skeleton member 41 independently of the shock absorbing member 61 and the frame member 5, the difference in rigidity between these members 41, 61, 5, that is, the rear end connection of the shock absorbing member 61 in the skeleton member 41 Even if there is a difference in rigidity between the rear end connecting portion 41f connecting the portions 613 and the joined portions 41a to 41e connecting the front ends of the frame members 5 (51 to 55), the skeleton member 41 By forming the reinforcing rib 70, the collision load can be efficiently transmitted from the shock absorbing member 61 to the frame member 5 via the skeleton member 41 at the time of a front collision.

この発明の態様として、骨格メンバ41をアルミダイキャストで形成したものである。
上記構成によれば、骨格メンバ41に補強リブ70を容易に形成することができる。
As an aspect of the present invention, the skeleton member 41 is formed by die-casting aluminum.
According to the above configuration, the reinforcing rib 70 can be easily formed on the skeleton member 41.

この発明の態様として、骨格メンバ41は、アッパアーム33及びダンパ34を支持する上側骨格部411、ロアアーム32を支持する下側骨格部412、これら上下各側の骨格部411,412の前端同士及び後端同士を連結する前側骨格部413及び後側骨格部414を備えて枠状に構成されており(図1、図2、図4参照)、フレーム部材5には、車室部2側に備え、車両前後方向に延びるセンタトンネルフレーム26の前端から前方に向かって延び、上側骨格部411の後端に接続されるセンタ側フレーム52を備えており(図2、図4、図6参照)、センタ側フレーム52は、その長手方向の前方へと延びる延長線52xが衝撃吸収部材61の後端連結部613と交差するように前下方向に配設され(図4、図9参照)、補強リブ70には、被後端連結部41fと、センタ側フレーム52の前端を接続するセンタ側フレーム被接合部41bとを直線状に連結する第1補強リブ71(71a,71b)を備えたものである(図2、図9参照)。 As an aspect of the present invention, the skeleton member 41 includes an upper skeleton portion 411 supporting the upper arm 33 and the damper 34, a lower skeleton portion 412 supporting the lower arm 32, and front ends and rear ends of the skeleton portions 411 and 412 on the upper and lower sides thereof. The front skeleton portion 413 and the rear skeleton portion 414 that connect the ends are provided in a frame shape (see FIGS. 1, 2, and 4), and the frame member 5 is provided on the passenger compartment 2 side. A center-side frame 52 extending forward from the front end of the center tunnel frame 26 extending in the front-rear direction of the vehicle and connected to the rear end of the upper skeleton portion 411 is provided (see FIGS. 2, 4, and 6). The center-side frame 52 is arranged in the front-down direction so that the extension line 52x extending forward in the longitudinal direction intersects the rear end connecting portion 613 of the shock absorbing member 61 (see FIGS. 4 and 9) to reinforce the center-side frame 52. The rib 70 is provided with first reinforcing ribs 71 (71a, 71b) that linearly connect the rear end connecting portion 41f and the center side frame joined portion 41b connecting the front ends of the center side frame 52. (See FIGS. 2 and 9).

上記構成によれば、骨格メンバ41における、被後端連結部41fとセンタ側フレーム被接合部41bとが、上下に互いにオフセット(位置ずれ)する構成においても、上述したように、センタ側フレーム52を前下後上方向に傾斜して配設したり、第1補強リブ71を設けることにより、骨格メンバ41において前突荷重を被後端連結部41fからセンタ側フレーム被接合部41bへ効率よく伝達することができる。 According to the above configuration, even in the configuration in which the rear end connecting portion 41f and the center side frame joined portion 41b of the skeleton member 41 are vertically offset (misaligned) with each other, as described above, the center side frame 52 By arranging the skeleton members so as to be inclined in the front lower rear upper direction or by providing the first reinforcing rib 71, the front impact load of the skeleton member 41 is efficiently applied from the rear end connecting portion 41f to the center side frame joined portion 41b. Can be communicated.

詳述すると、サスペンション3の支持高さ(アッパアーム支持部82やダンパ支持部83の高さ)と、車両1の前突時に車体前部で衝突荷重を受け止める高さ(衝撃吸収部材61の高さ)とは必ずしも一致するとは限らず、むしろ異なることが多い(図2、図4参照)。 More specifically, the support height of the suspension 3 (the height of the upper arm support portion 82 and the damper support portion 83) and the height of receiving the collision load at the front portion of the vehicle body at the time of the front collision of the vehicle 1 (the height of the shock absorbing member 61). ) Does not always match, but rather often differs (see FIGS. 2 and 4).

このため、骨格メンバ41における被後端連結部41fと、センタ側フレーム被接合部41bとは互いに略同じ高さに設けられるとは限らない(同図参照)。このため、例えば、被後端連結部41fは、センタ側フレーム被接合部41bに対して下方にオフセット(すなわち、位置ずれ)したレイアウトになることがある。当例では、センタ側フレーム被接合部41bが、上側骨格部411の後面に設けられるのに対して、被後端連結部41fが、上側骨格部411と前側骨格部413との各前面に跨った位置に設けられる(同図参照)。 Therefore, the rear end connecting portion 41f of the skeleton member 41 and the center side frame joined portion 41b are not always provided at substantially the same height (see the figure). Therefore, for example, the rear end connecting portion 41f may have a layout that is offset downward (that is, misaligned) with respect to the center side frame joined portion 41b. In this example, the center-side frame joined portion 41b is provided on the rear surface of the upper skeleton portion 411, while the rear end connecting portion 41f straddles the front surfaces of the upper skeleton portion 411 and the front skeleton portion 413. It is installed at the same position (see the figure).

そしてこのように、被後端連結部41fとセンタ側フレーム被接合部41bとの高さが異なる場合には、被後端連結部41f(車両前方)からセンタ側フレーム被接合部41b(車両後方)への前突荷重の伝達効率の低下が懸念される。 When the heights of the rear end connecting portion 41f and the center side frame joined portion 41b are different in this way, the rear end connecting portion 41f (front of the vehicle) to the center side frame joined portion 41b (rear of the vehicle). ), There is a concern that the transmission efficiency of the front impact load will decrease.

そこで本実施形態においては、上述したように、センタ側フレーム52を、その長手方向の前方へと延びる延長線52xが衝撃吸収部材61の後端連結部613(後端)と交差するように前下方向に配設することで、該前方へと延びる延長線52xが、被後端連結部41fとセンタ側フレーム被接合部41bとを最短距離で結ぶ直線に対して極力平行になるように配設することができる。 Therefore, in the present embodiment, as described above, the center side frame 52 is fronted so that the extension line 52x extending forward in the longitudinal direction intersects the rear end connecting portion 613 (rear end) of the shock absorbing member 61. By arranging in the downward direction, the extension line 52x extending forward is arranged so as to be as parallel as possible to the straight line connecting the rear end connecting portion 41f and the center side frame joined portion 41b at the shortest distance. Can be set up.

これにより、センタ側フレーム被接合部41bに対して被後端連結部41fが下方にオフセットした構成においても、被後端連結部41fからセンタ側フレーム被接合部41bへ向けて骨格メンバ41を最短経路で伝達する衝突荷重が該センタ側フレーム被接合部41bを介してセンタ側フレーム52に入力され易くなり、前突荷重の伝達効率を高めることができる。 As a result, even in a configuration in which the rear end connecting portion 41f is offset downward with respect to the center side frame joined portion 41b, the skeleton member 41 is shortened from the rear end connecting portion 41f toward the center side frame joined portion 41b. The collision load transmitted by the path is easily input to the center side frame 52 via the center side frame jointed portion 41b, and the transmission efficiency of the front collision load can be improved.

さらに、骨格メンバ41に、被後端連結部41fと、センタ側フレーム被接合部41bとを直線状に連結する第1補強リブ71を形成することで、前突荷重を被後端連結部41fからセンタ側フレーム被接合部41bへ第1補強リブ71(71a,71b)に沿って、より効率的に伝達できる。 Further, by forming the first reinforcing rib 71 that linearly connects the rear end connecting portion 41f and the center side frame joined portion 41b to the skeleton member 41, the front impact load is applied to the rear end connecting portion 41f. Can be more efficiently transmitted from the center side frame to the jointed portion 41b along the first reinforcing ribs 71 (71a, 71b).

従って、前突荷重を、衝撃吸収部材61、骨格メンバ41、センタ側フレーム52及びセンタトンネルフレーム26にこの順に効率よく伝達することができる。 Therefore, the front impact load can be efficiently transmitted to the shock absorbing member 61, the skeleton member 41, the center side frame 52, and the center tunnel frame 26 in this order.

この発明の態様として、ヒンジピラー23下部から前方に延設された衝撃吸収部材28(前方延設メンバ)を備え、衝撃吸収部材28と骨格メンバ41との間において前後方向に延びるサイド側フレーム53(サイド側フレーム)を備え(図2、図9参照)、サイド側フレーム53は、その後端が衝撃吸収部材28に接続されるとともに、前端が、上側骨格部411における、センタ側フレーム52の前端を接合するセンタ側フレーム被接合部41b(前端接続部)の下方で隣接する部位に設けたサイド側フレーム被接合部41cに接続され(図2、図9参照)、補強リブ70は、被後端連結部41fと、サイド側フレーム被接合部41c(サイド側フレームの前端接続部)とを直線状に連結する第2補強リブ72を備えたものである(同図参照)。 As an aspect of the present invention, a shock absorbing member 28 (front extending member) extending forward from the lower part of the hinge pillar 23 is provided, and a side frame 53 extending in the front-rear direction between the shock absorbing member 28 and the skeleton member 41 ( The side frame 53 is provided with a side frame) (see FIGS. 2 and 9), and the rear end of the side frame 53 is connected to the shock absorbing member 28, and the front end is the front end of the center side frame 52 in the upper skeleton portion 411. The reinforcing rib 70 is connected to the side frame joint 41c provided at an adjacent portion below the center side frame joint 41b (front end connection) to be joined (see FIGS. 2 and 9), and the reinforcing rib 70 is the rear end. It is provided with a second reinforcing rib 72 that linearly connects the connecting portion 41f and the side frame joined portion 41c (front end connecting portion of the side frame) (see the figure).

上記構成によれば、衝撃吸収部材61、骨格メンバ41、サイド側フレーム53へのこの順の荷重伝達性を高めることができる。 According to the above configuration, the load transmission in this order to the shock absorbing member 61, the skeleton member 41, and the side frame 53 can be enhanced.

詳しくは、サイド側フレーム被接合部41cは、センタ側フレーム被接合部41bと比較して被後端連結部41fとの上下方向のオフセット量(位置ずれ量)を抑制することができる。
さらに第1補強リブ71に下方で隣接する第2補強リブ72を形成することにより、被後端連結部41fからサイド側フレーム53への前突荷重の伝達効率をより一層向上できる。
Specifically, the side frame joined portion 41c can suppress the offset amount (positional deviation amount) in the vertical direction with the rear end connecting portion 41f as compared with the center side frame joined portion 41b.
Further, by forming the second reinforcing rib 72 that is adjacent to the first reinforcing rib 71 below, the transmission efficiency of the front impact load from the rear end connecting portion 41f to the side frame 53 can be further improved.

この発明の態様として、補強リブ70は、第1補強リブ71(当例では第1下側補強リブ71b)の途中部位から第2補強リブ72と交差し衝撃吸収部材61の後端下端部に向かって直線的に延びる第3補強リブ73を備えたものである(図9参照)。 As an aspect of the present invention, the reinforcing rib 70 intersects the second reinforcing rib 72 from an intermediate portion of the first reinforcing rib 71 (in this example, the first lower reinforcing rib 71b) to the lower end of the rear end of the shock absorbing member 61. It is provided with a third reinforcing rib 73 extending linearly toward it (see FIG. 9).

上記構成によれば、前側骨格部413から第1下側補強リブ71bに連結される第3補強リブ73を形成することでさらに荷重伝達効率を向上できる。 According to the above configuration, the load transmission efficiency can be further improved by forming the third reinforcing rib 73 connected from the front skeleton portion 413 to the first lower reinforcing rib 71b.

この発明の態様として、補強リブ70は、第1補強リブ71(当例では第1下側補強リブ71b)の途中部からダンパ支持部83(当例では後側締結部83b)に向かって直線状に延びる第4補強リブ74を備えたものである(図9参照)。 As an aspect of the present invention, the reinforcing rib 70 is a straight line from an intermediate portion of the first reinforcing rib 71 (first lower reinforcing rib 71b in this example) toward the damper support portion 83 (rear fastening portion 83b in this example). It is provided with a fourth reinforcing rib 74 extending in a shape (see FIG. 9).

上記構成によれば、第4補強リブ74によって、第3補強リブ73を、第1下側補強リブ71bの途中部よりもセンタ側フレーム被接合部41bにより近い位置まで延ばすことができるため、被後端連結部41fからセンタ側フレーム被接合部41bへの衝突荷重の伝達効率をさらに向上できる。 According to the above configuration, the fourth reinforcing rib 74 can extend the third reinforcing rib 73 to a position closer to the center side frame joined portion 41b than the intermediate portion of the first lower reinforcing rib 71b. The efficiency of transmitting the collision load from the rear end connecting portion 41f to the center side frame joined portion 41b can be further improved.

さらに、第4補強リブ74は、ダンパ支持部83と第1下側補強リブ71bの途中部とを直線状に連結するように延ばすことができるため、ダンパ34からダンパ支持部83に入力される入力荷重の第4補強リブ74から第3補強リブ73に沿った前下方向への分散が促進できるため、ダンパ34の支持剛性を高めることができる(図9の特に第3補強リブ73に沿って示した破線矢印参照)。 Further, since the fourth reinforcing rib 74 can be extended so as to linearly connect the damper support portion 83 and the intermediate portion of the first lower reinforcing rib 71b, the fourth reinforcing rib 74 is input from the damper 34 to the damper support portion 83. Since the distribution of the input load from the fourth reinforcing rib 74 to the third reinforcing rib 73 in the front-down direction can be promoted, the support rigidity of the damper 34 can be increased (particularly along the third reinforcing rib 73 in FIG. 9). See the dashed arrow shown above).

ここで、図9中の補強リブ70に沿って示した矢印は、補強リブ70に沿って伝達される荷重の方向を示すものであり、これら矢印のうち太矢印は、衝突荷重の伝達方向を示し、破線矢印は、ダンパ34からダンパ支持部83に入力された入力荷重の伝達方向を示すものである。 Here, the arrows shown along the reinforcing ribs 70 in FIG. 9 indicate the direction of the load transmitted along the reinforcing ribs 70, and the thick arrows among these arrows indicate the direction of the collision load transmission. The dashed arrow indicates the transmission direction of the input load input from the damper 34 to the damper support portion 83.

この発明の態様として、補強リブ70は、被後端連結部41fの下端部(衝撃吸収部材61の後端下端部)から下側骨格部412に向かって直線状に延びる第5補強リブ75を備えたものである(図9参照)。 As an aspect of the present invention, the reinforcing rib 70 has a fifth reinforcing rib 75 extending linearly from the lower end portion of the rear end connecting portion 41f (the lower end portion of the rear end of the shock absorbing member 61) toward the lower skeleton portion 412. It is provided (see FIG. 9).

上記構成によれば、前突荷重を被後端連結部41fから上方だけでなく下方へも伝達することができる(図9の特に第5補強リブ75に沿って示した太矢印参照)。 According to the above configuration, the front impact load can be transmitted not only upward but also downward from the rear end connecting portion 41f (see particularly the thick arrow shown along the fifth reinforcing rib 75 in FIG. 9).

さらに第3、第4補強リブ73,74を設けた構成において、ダンパ支持部83に対するダンパ34からの入力荷重を、これら第4補強リブ74、第3補強リブ73、第5補強リブ75に沿ってこの順に下側骨格部412へと伝達して分散できる(図9の同破線矢印参照)。 Further, in the configuration in which the third and fourth reinforcing ribs 73 and 74 are provided, the input load from the damper 34 to the damper support portion 83 is applied along the fourth reinforcing rib 74, the third reinforcing rib 73, and the fifth reinforcing rib 75. It can be transmitted to the lower skeleton portion 412 in the order of the levers and dispersed (see the dashed arrow in FIG. 9).

よって、前突荷重の伝達効率とダンパ34の支持剛性をより高めることができる。 Therefore, the transmission efficiency of the front impact load and the support rigidity of the damper 34 can be further improved.

この発明の態様として、フレーム部材5には、サイドシル21の前端から前方に向かって延び、後側骨格部414の後端に接続されるサイド側ロアフレーム54を備え(図2、図4、図9参照)、補強リブ70は、下側骨格部412の上縁と後側骨格部414の前縁とのコーナー部からサイド側ロアフレーム54の下端位置に向かって延びる第6補強リブ76、及び上側骨格部411の後部下端からサイド側ロアフレーム54の上端位置に向かって延びる第7補強リブ77(77a,77b)を備えたものである(図2、図4、図9参照)。 As an aspect of the present invention, the frame member 5 includes a side lower frame 54 extending forward from the front end of the side sill 21 and connected to the rear end of the rear skeleton portion 414 (FIGS. 2, FIG. 4, FIG. 9), the reinforcing rib 70 extends from the corner portion between the upper edge of the lower skeleton portion 412 and the leading edge of the rear skeleton portion 414 toward the lower end position of the side lower frame 54, and the sixth reinforcing rib 76. It is provided with seventh reinforcing ribs 77 (77a, 77b) extending from the lower end of the rear portion of the upper skeleton portion 411 toward the upper end position of the side lower frame 54 (see FIGS. 2, 4, and 9).

上記構成によれば、被後端連結部41fからサイド側ロアフレーム54の前端を接続するサイド側ロアフレーム被接合部41dへの前突荷重の伝達性能をより高めることができる(図9の特に第6補強リブ76および第7補強リブ77に沿って示した太矢印参照)。 According to the above configuration, it is possible to further improve the transmission performance of the front impact load from the rear end connecting portion 41f to the side side lower frame joined portion 41d connecting the front end of the side lower frame 54 (particularly in FIG. 9). See the thick arrows shown along the 6th reinforcing rib 76 and the 7th reinforcing rib 77).

特に、第7補強リブ77(77a,77b)によって、ダンパ支持部83に対するダンパ34からの入力荷重も分散できる(図9の特に第7補強リブ77に沿って示した破線矢印参照)。 In particular, the seventh reinforcing ribs 77 (77a, 77b) can also disperse the input load from the damper 34 to the damper support 83 (see, in particular, the dashed arrow shown along the seventh reinforcing rib 77 in FIG. 9).

さらに、サブ衝撃吸収部材65(図2参照)を介して下側骨格部412の前面から入力され、後方向へ伝達する前突荷重についても、第6補強リブ76によって、サイド側ロアフレーム54へ効率的に伝達することができる(図9の特に第6補強リブ76に沿って示した太矢印参照)。 Further, the front impact load input from the front surface of the lower skeleton portion 412 via the sub-shock absorbing member 65 (see FIG. 2) and transmitted in the rear direction is also transmitted to the side lower frame 54 by the sixth reinforcing rib 76. It can be transmitted efficiently (see especially the thick arrow shown along the sixth reinforcing rib 76 in FIG. 9).

この発明の態様として、補強リブ70は、上側骨格部411の後部下端からダンパ支持部83に向けて略直線状に延びる第8補強リブ78(78a,78b)を備えたものである(図2、図9参照)。 As an aspect of the present invention, the reinforcing rib 70 is provided with eighth reinforcing ribs 78 (78a, 78b) extending substantially linearly from the lower end of the rear portion of the upper skeleton portion 411 toward the damper support portion 83 (FIG. 2). , See FIG. 9).

上記構成によれば、被後端連結部41fからサイド側ロアフレーム被接合部41dへの衝突荷重の伝達効率をさらに向上できる。 According to the above configuration, the transmission efficiency of the collision load from the rear end connecting portion 41f to the side lower frame joined portion 41d can be further improved.

さらに、第8補強リブ78は、ダンパ支持部83と第7補強リブ77とを直線状に連結するように延ばすことができるため、ダンパ支持部83の入力荷重を第8補強リブ78から第7補強リブ77に沿って後下方へ伝達することができる。これにより、ダンパ支持部83の入力荷重の分散が促進できるため、ダンパ34の支持剛性も高めることができる。 Further, since the eighth reinforcing rib 78 can be extended so as to linearly connect the damper support portion 83 and the seventh reinforcing rib 77, the input load of the damper support portion 83 can be increased from the eighth reinforcing rib 78 to the seventh reinforcing rib 78. It can be transmitted backward and downward along the reinforcing rib 77. As a result, the distribution of the input load of the damper support portion 83 can be promoted, so that the support rigidity of the damper 34 can also be increased.

その他にも、補強リブ70は、ダンパ支持部83と骨格メンバ41の上端とを連結する第9〜第12補強リブ79a〜79dを備えることで(図9参照)、ダンパ34からダンパ支持部83に入力された入力荷重を効率的に、サイド側アッパフレーム被接合部41aを介してサイド側アッパフレーム51に伝達することができる。 In addition, the reinforcing rib 70 is provided with ninth to twelfth reinforcing ribs 79a to 79d for connecting the damper support portion 83 and the upper end of the skeleton member 41 (see FIG. 9), so that the damper 34 to the damper support portion 83 are provided. The input load input to the side upper frame 51 can be efficiently transmitted to the side side upper frame 51 via the side side upper frame jointed portion 41a.

この発明は、上述の実施例の構成のみに限定されるものではなく様々な実施形態で形成することができる。 The present invention is not limited to the configuration of the above-described embodiment, and can be formed in various embodiments.

1…車両
2…車室部
3…フロントサスペンション(サスペンション)
5(51〜55)…フレーム部材
21…サイドシル
23…ヒンジピラー
26…センタトンネルフレーム
28…衝撃吸収部材(前方延設メンバ)
32…ロアアーム
33…アッパアーム
34…フロントサスダンパ(ダンパ)
41…骨格メンバ
41a〜41e…被接合部(前端接続部)
41b…センタ側フレーム被接合部(センタ側フレーム前端接続部)
41c…サイド側フレーム被接合部(サイド側フレーム前端接続部)
41f…被後端連結部(後端接続部)
52…センタ側フレーム部材(センタ側フレーム)
52x…延長線
53…サイド側フレーム
54…サイド側ロアフレーム
61…衝撃吸収部材
70(71〜79)…補強リブ
71(71a,71b)…第1補強リブ(第1の補強リブ)
72…第2補強リブ(第2の補強リブ)
73…第3補強リブ(第3の補強リブ)
74…第4補強リブ(第4の補強リブ)
75…第5補強リブ(第5の補強リブ)
76…第6補強リブ(第6の補強リブ)
77(77a,77b)…第7補強リブ(第7の補強リブ)
78(78a,78b)…第8補強リブ(第8の補強リブ)
83…ダンパ支持部
411…上側骨格部
412…下側骨格部
413…前側骨格部
414…後側骨格部
613…後端連結部(衝撃吸収部材の後端)
1 ... Vehicle 2 ... Interior 3 ... Front suspension (suspension)
5 (51-55) ... Frame member 21 ... Side sill 23 ... Hinge pillar 26 ... Center tunnel frame 28 ... Shock absorbing member (front extension member)
32 ... Lower arm 33 ... Upper arm 34 ... Front suspension damper (damper)
41 ... Skeleton members 41a to 41e ... Jointed portion (front end connecting portion)
41b ... Center side frame jointed portion (center side frame front end connecting portion)
41c ... Side side frame jointed portion (side side frame front end connecting portion)
41f ... Rear end connecting portion (rear end connecting portion)
52 ... Center-side frame member (center-side frame)
52x ... Extension line 53 ... Side side frame 54 ... Side side lower frame 61 ... Impact absorbing member 70 (71-79) ... Reinforcing ribs 71 (71a, 71b) ... First reinforcing ribs (first reinforcing ribs)
72 ... Second reinforcing rib (second reinforcing rib)
73 ... Third reinforcing rib (third reinforcing rib)
74 ... 4th reinforcing rib (4th reinforcing rib)
75 ... Fifth reinforcing rib (fifth reinforcing rib)
76 ... 6th reinforcing rib (6th reinforcing rib)
77 (77a, 77b) ... 7th reinforcing rib (7th reinforcing rib)
78 (78a, 78b) ... 8th reinforcing rib (8th reinforcing rib)
83 ... Damper support part 411 ... Upper skeleton part 412 ... Lower skeleton part 413 ... Front skeleton part 414 ... Rear skeleton part 613 ... Rear end connecting part (rear end of shock absorbing member)

Claims (9)

サスペンションのアッパアーム、ロアアーム及びダンパを支持する骨格メンバと、
上記骨格メンバの前面に接続され、車両前後方向に延びる衝撃吸収部材と、
上記骨格メンバの後面に接続され、車両前後方向に延びるフレーム部材と、を備えた車両の前部車体構造であって、
上記骨格メンバにおける、上記衝撃吸収部材の後端を接続する後端接続部と、フレーム部材の前端を接続する前端接続部との間に、前後方向に延びる補強リブが形成され
上記骨格メンバは、上記アッパアーム及び上記ダンパを支持する上側骨格部、上記ロアアームを支持する下側骨格部、上側/下側骨格部の前端同士及び後端同士を連結する前側骨格部及び後側骨格部を備えて枠状に構成されており、
上記フレーム部材には、車室部側に備え、車両前後方向に延びるセンタトンネルフレームの前端から前方に向かって延び、上記上側骨格部の後端に接続されるセンタ側フレームを備えており、
上記センタ側フレームは、その長手方向の前方へと延びる延長線が上記衝撃吸収部材の後端と交差するように前下方向に配設された
車両の前部車体構造。
The skeleton members that support the upper arm, lower arm and damper of the suspension,
A shock absorbing member that is connected to the front of the skeleton member and extends in the front-rear direction of the vehicle,
A front body structure of a vehicle including a frame member connected to the rear surface of the skeleton member and extending in the front-rear direction of the vehicle.
In the skeleton member, a reinforcing rib extending in the front-rear direction is formed between the rear end connecting portion connecting the rear end of the shock absorbing member and the front end connecting portion connecting the front end of the frame member .
The skeleton members include an upper skeleton portion that supports the upper arm and the damper, a lower skeleton portion that supports the lower arm, and an anterior skeleton portion and a posterior skeleton portion that connect the front ends and the rear ends of the upper / lower skeleton parts. It is configured in a frame shape with a part,
The frame member includes a center-side frame that extends forward from the front end of the center tunnel frame that extends in the front-rear direction of the vehicle and is connected to the rear end of the upper skeleton portion.
The center-side frame is a front body structure of a vehicle in which an extension line extending forward in the longitudinal direction is arranged in the front-down direction so as to intersect the rear end of the shock absorbing member.
上記骨格メンバをアルミダイキャストで形成した
請求項1に記載の車両の前部車体構造。
The front body structure of a vehicle according to claim 1, wherein the skeleton member is formed by die-casting aluminum.
記補強リブには、上記後端接続部と、上記前端接続部のうち、上記センタ側フレームの前端を接続するセンタ側フレーム前端接続部とを直線状に連結する第1の補強リブを備えた
請求項1又は2に記載の車両の前部車体構造。
The upper SL reinforcing ribs, with the above-described rear connection portion, of the front connecting portion, the first reinforcing rib connecting linearly the center-side frame front connection portion connecting the front end of the center-side frame The front body structure of the vehicle according to claim 1 or 2.
車室部側に、ヒンジピラーから前方に延設された前方延設メンバを備え、該前方延設メンバと上記骨格メンバとの間において前後方向に延びるサイド側フレームを備え、
上記サイド側フレームは、その後端が上記前方延設メンバに接続されるとともに、前端が上記上側骨格部における、上記前端接続部の下方に隣接するサイド側フレーム前端接続部に接続され、
上記補強リブは、上記衝撃吸収部材の上記後端接続部と、上記サイド側フレーム前端接続部とを直線状に連結する第2の補強リブを備えた
請求項3に記載の車両の前部車体構造。
A front extension member extending forward from the hinge pillar is provided on the passenger compartment side, and a side frame extending in the front-rear direction between the front extension member and the skeleton member is provided.
The rear end of the side frame is connected to the front extension member, and the front end is connected to the front end connection portion of the side frame adjacent to the lower side of the front end connection portion in the upper skeleton portion.
The front vehicle body of the vehicle according to claim 3, wherein the reinforcing rib is provided with a second reinforcing rib that linearly connects the rear end connecting portion of the shock absorbing member and the front end connecting portion of the side frame. structure.
上記補強リブは、上記第1の補強リブの途中部位から上記第2の補強リブと交差し衝撃吸収部材の後端下端部に向かって直線的に延びる第3の補強リブを備えた
請求項4に記載の車両の前部車体構造。
4. The reinforcing rib is provided with a third reinforcing rib that intersects the second reinforcing rib from an intermediate portion of the first reinforcing rib and extends linearly toward the lower end of the rear end of the shock absorbing member. The front body structure of the vehicle described in.
上記補強リブは、上記第1補強リブの上記途中部位から、上記ダンパを支持するダンパ支持部に向かって直線状に延びる第4の補強リブを備えた
請求項5に記載の車両の前部車体構造。
The reinforcing ribs, said from the middle portion of the first reinforcing ribs, the front part of the vehicle according to claim 5 comprising a fourth reinforcing ribs extending straight toward the damper supporting section for supporting the damper Body structure.
上記補強リブは、上記衝撃吸収部材の後端下端部から上記下側骨格部に向かって直線状に延びる第5の補強リブを備えた
請求項5又は6に記載の車両の前部車体構造。
The front body structure of a vehicle according to claim 5 or 6, wherein the reinforcing rib includes a fifth reinforcing rib that extends linearly from the lower end of the rear end of the shock absorbing member toward the lower skeleton portion.
上記フレーム部材には、サイドシルの前端から前方に向かって延び上記後側骨格部の後端に接続されるサイド側ロアフレームを備え、
上記補強リブは、上記下側骨格部の上縁と上記後側骨格部の前縁とのコーナー部から上記サイド側ロアフレームの下端位置に向かって延びる第6の補強リブ、及び上記上側骨格部の後部下端から上記サイド側ロアフレームの上端位置に向かって延びる第7の補強リブを備えた
請求項3乃至7のいずれか1項に記載の車両の前部車体構造。
The frame member includes a side lower frame that extends forward from the front end of the side sill and is connected to the rear end of the rear skeleton portion.
The reinforcing ribs are a sixth reinforcing rib extending from a corner portion between the upper edge of the lower skeleton portion and the front edge of the rear skeleton portion toward the lower end position of the side lower frame portion, and the upper skeleton portion. The front body structure of a vehicle according to any one of claims 3 to 7, further comprising a seventh reinforcing rib extending from the lower end of the rear portion toward the upper end position of the side lower frame.
上記補強リブは、上記上側骨格部の後部下端から、上記ダンパを支持するダンパ支持部に向けて略直線状に延びる第8の補強リブを備えた
請求項8に記載の車両の前部車体構造。
The front body structure of a vehicle according to claim 8, wherein the reinforcing rib includes an eighth reinforcing rib extending substantially linearly from the lower end of the rear portion of the upper skeleton portion toward the damper support portion supporting the damper. ..
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