JP5304711B2 - Body reinforcement structure - Google Patents

Body reinforcement structure Download PDF

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JP5304711B2
JP5304711B2 JP2010086272A JP2010086272A JP5304711B2 JP 5304711 B2 JP5304711 B2 JP 5304711B2 JP 2010086272 A JP2010086272 A JP 2010086272A JP 2010086272 A JP2010086272 A JP 2010086272A JP 5304711 B2 JP5304711 B2 JP 5304711B2
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vehicle
floor
vehicle body
unit housing
vertical
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JP2011218822A (en
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祐三 新名
健夫 長森
雄高 藤原
靖浩 井上
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Mitsubishi Motors Corp
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Mitsubishi Motors Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body reinforcing structure enabling mounting of a unit housing which is part of an electric drive unit of a hybrid vehicle etc. without excessively narrowing the capacity of a cabin and capable of enhancing rigidity of a vehicle body rear part and of securing durability. <P>SOLUTION: The vehicle body reinforcing structure includes: right and left side members 4 each coupled to a lower face of a floor 2 of a vehicle C travelling by driving wheels W by a motor M and jointed to right and left ends of a cross member 3 long in the vehicle width direction X, respectively; the unit housing 8 storing a drive unit U of the motor M and having right and left ends arranged in positions above the floor 2 and above the right and left side members 4; right and left fastening parts 9 provided at the right and left ends of the unit housing 8, respectively; vertical wall parts vw of cabin opposing wall plate members 6 jointed to right and left ends of the floor 2 and forming lateral walls of the cabin R; and right and left fastening means 11 fastening the fastening parts 9 and the vertical wall parts vw to each other. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

本発明は、車体後部の車室を形成するリヤフロアや左右の車室対向壁板材の剛性を確保するようにした車体補強構造に関するものである。   The present invention relates to a vehicle body reinforcement structure that ensures the rigidity of a rear floor that forms a vehicle compartment at the rear of a vehicle body and left and right vehicle compartment facing wall plates.

車体後部のリヤフロアには、その下面に前後に長い左右一対のサイドメンバや、これらに左右端が一体結合する車幅方向に延びるクロスメンバが接合され、これによりリヤフロアの剛性強化を図っている。更に、リヤフロアの左右端縁には上方に延びる車室対向壁材の下端が溶着され、この車室対向壁板材の下側要部には後車輪の上部を収容するホイールハウスが一体的に結合されている。
これら車体後部構成部材であるリヤフロアやホイールハウスを含む車室対向壁板材は相互に溶着されることで剛性強化が図れており、これにより後車輪からの路面反力がサスペンション装置のショックアブソーバを介してホイールハウスやサイドメンバに取り付けられているサスペンション取付け部に入力した際に、その入力荷重が車体後部構成部材に分散支持され、車体後部構成部材の耐久性が保持されている。 A pair of left and right side members elongated in the front-rear direction and a cross member extending in the vehicle width direction in which the left and right ends are integrally coupled are joined to the rear floor of the rear part of the vehicle body, thereby enhancing the rigidity of the rear floor. Furthermore, the lower end of the facing wall material extending upward is welded to the left and right edges of the rear floor, and a wheel house that accommodates the upper part of the rear wheel is integrally coupled to the lower part of the facing material of the facing wall. Has been.
The vehicle interior facing wall plates, including the rear floor and wheel house, which are the rear components of the vehicle body, are welded to each other to increase the rigidity, thereby allowing the road surface reaction force from the rear wheels to pass through the shock absorber of the suspension device. Thus, when input is made to the suspension attachment portion attached to the wheel house or the side member, the input load is dispersedly supported by the vehicle body rear component member, and the durability of the vehicle body rear component member is maintained.

ところで、車両に搭載された電動機をモータとして動作することにより車両を加速し、発電機として動作することにより減速を実現して走行する電気自動車や、車載エンジンが駆動する発電機の発電出力により電動機を駆動して走行するシリーズハイブリッド車や、エンジンの機械出力と電動機の出力とを併用して走行するシリーズパラレルハイブリッド車が知られている。
これら電気自動車やハイブリッド車等ではその電動駆動装置の要部を成す電動機をモータあるいは発電機として切換え動作させるＥＶ駆動用ユニットを備える。例えば、図８に示すハイブリッド車Ｃ１では、後車室Ｒのフロア７０に上部クロスメンバ７１を重ねて一体結合し、それにＥＶ駆動用ユニットＵを収容した筐体を成すハウジング７２を載置している。これにより両部材を後車室Ｒの下部に配置し、しかも、上部クロスメンバ７１の左右端の左右立ち上がり部７１１によって車室対向壁板材７３やホイールハウス７４の車内側への傾きを抑制することで、車体後部構成部材の剛性強化を図り、耐久性を確保している。 By the way, the electric motor mounted on the vehicle operates as a motor to accelerate the vehicle, and operates as a generator to realize deceleration, and the electric motor by the power generation output of the generator driven by the in-vehicle engine. A series hybrid vehicle that travels by driving and a series parallel hybrid vehicle that travels by using both the mechanical output of an engine and the output of an electric motor are known.
These electric vehicles, hybrid vehicles, and the like include an EV drive unit that switches an electric motor that constitutes a main part of the electric drive device as a motor or a generator. For example, in the hybrid vehicle C1 shown in FIG. 8, the upper cross member 71 is overlapped and integrally coupled to the floor 70 of the rear passenger compartment R, and the housing 72 constituting the housing that houses the EV drive unit U is placed thereon. Yes. As a result, both members are arranged in the lower portion of the rear casing R, and the left and right rising portions 711 at the left and right ends of the upper cross member 71 suppress the inclination of the casing facing wall plate 73 and the wheel house 74 toward the vehicle interior. Thus, the rigidity of the rear body constituting member is enhanced to ensure durability.

更に、特許文献１（特開２００６−３３５２４３号公報）に開示される車両用電源装置では、バッテリモジュールやダウンバータ等を収容した筐体であるバッテリーボックスを車幅方向に延びる下部、上部バッテリ支持フレームを介して左右のサイドメンバに取付けている。ここでは、バッテリーボックスを支持した下部、上部バッテリ支持フレームをフロア下のクロスメンバとして兼用し、これにより、バッテリーボックスの装着スペースを確保すると共に車体後部構成部材の耐久性を確保している。   Furthermore, in the vehicle power supply device disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2006-335243), a battery box, which is a housing containing a battery module, a downverter, and the like, is supported at the lower and upper battery portions extending in the vehicle width direction. It is attached to the left and right side members via a frame. Here, the lower and upper battery support frames that support the battery box are also used as cross members below the floor, thereby ensuring the mounting space for the battery box and the durability of the rear body constituting member.

特開２００６−３３５２４３号公報JP 2006-335243 A

このように、従来の電気自動車やハイブリッド車等ではその電動駆動装置の一部をなすＥＶ駆動用ユニットＵやバッテリーボックスのような比較的大きな筐体であるユニットハウジングを備え、これを装着する上で、スペース確保と車体後部構成部材の耐久性確保を共に図るようにしている。
しかし、図８のＥＶ駆動用ユニットＵを収容する筐体であるユニットハウジング７２は、これが上部クロスメンバ７１の上に重ねて配備され、ユニットハウジング７２より上側の高さ方向幅を狭め、荷室高さスペースを狭めてしまうという問題があり、改善が望まれている。 As described above, conventional electric vehicles, hybrid vehicles, and the like include a unit housing that is a relatively large casing such as an EV drive unit U and a battery box that form a part of the electric drive device. Thus, both securing the space and ensuring the durability of the rear body component are achieved.
However, the unit housing 72, which is a housing for accommodating the EV drive unit U of FIG. 8, is provided so as to overlap the upper cross member 71, the width in the height direction above the unit housing 72 is narrowed, and the luggage compartment There is a problem of narrowing the height space, and improvement is desired.

一方、特許文献１に開示のバッテリーボックスを支持した下部、上部バッテリ支持フレームをクロスメンバとして兼用したものでは、荷室高さスペースを狭めることがない。しかし、この場合、フロアの上方に車室対向壁板材やホイールハウスの車内側への傾き変位を抑制する部材がないため、車室対向壁板材やホイールハウスが車室側への荷重を受けた場合、これらが車内側へ傾き変位すると共にサイドメンバやフロア端部が捩れ変位する傾向にある。この場合、フロア、サイドメンバ、車室対向壁板材、ホイールハウス等の相互の結合部の耐久性が低下することとなり、改善が望まれている。   On the other hand, in the case where the lower and upper battery support frames supporting the battery box disclosed in Patent Document 1 are also used as cross members, the cargo compartment height space is not reduced. However, in this case, since there is no member that suppresses the tilt displacement of the vehicle facing wall plate material or wheel house to the vehicle inner side above the floor, the vehicle room facing wall plate material or wheel house received a load on the vehicle side. In such a case, these members are inclined and displaced toward the inner side of the vehicle, and the side members and the floor ends tend to be twisted and displaced. In this case, durability of mutual joint parts such as a floor, a side member, a vehicle compartment facing wall plate material, and a wheel house is lowered, and improvement is desired.

本発明は以上のような課題に基づきなされたもので、目的とするところは、電気自動車やハイブリッド車等の車室容量を過度に狭めることなく電動駆動装置の一部をなす筐体であるユニットハウジングを装着でき、しかも、車体後部の強度、剛性を充分に高くでき、耐久性を確保できる車体補強構造を提供することにある。   The present invention has been made on the basis of the above-described problems, and an object thereof is a unit that is a casing that forms a part of an electric drive device without excessively reducing the cabin capacity of an electric vehicle or a hybrid vehicle. An object of the present invention is to provide a vehicle body reinforcement structure that can be fitted with a housing and that can sufficiently increase the strength and rigidity of the rear portion of the vehicle body and ensure durability.

この発明の請求項１は、車輪をモータで駆動して走行する車両のフロアの下面に結合され、かつ、車幅方向に長いクロスメンバの左右端にそれぞれ接合された前後に長い左右のサイドメンバと、前記モータの駆動ユニットを収容すると共に前記フロアの上方であって前記左右のサイドメンバの上方に左右端が位置して配置されたユニットハウジングと、該ユニットハウジングの左右端に設けた左右の締結部と、前記フロアの左右端に接合され車室の側壁を形成する車室対向壁板材の縦壁部と、前記締結部と前記縦壁部とを互いに締結する左右の締結手段と、を備えたことを特徴とする。   According to a first aspect of the present invention, the left and right side members that are coupled to the lower surface of the floor of a vehicle that travels by driving wheels by a motor and that are joined to the left and right ends of a cross member that is long in the vehicle width direction A unit housing that houses the drive unit of the motor and is positioned above the floor and above the left and right side members, and a left and right end provided on the left and right ends of the unit housing. A fastening portion, a vertical wall portion of a vehicle facing wall plate member joined to left and right ends of the floor to form a side wall of the vehicle compartment, and left and right fastening means for fastening the fastening portion and the vertical wall portion to each other. It is characterized by having.

この発明の請求項２は、請求項１記載の車体補強構造において、前記サイドメンバはリヤサイドメンバであり、前記リヤサイドメンバ又は車室対向壁板材の少なくとも一方に前記車輪のサスペンション装置であるショックアブソーバの上端を支持する上端連結部が形成されたことを特徴とする。   According to a second aspect of the present invention, in the vehicle body reinforcing structure according to the first aspect, the side member is a rear side member, and at least one of the rear side member or the vehicle interior facing wall plate member is a suspension device for the wheel. An upper end connecting portion for supporting the upper end is formed.

この発明の請求項３は、請求項１または２記載の車体補強構造において、前記車室対向壁板材の縦壁部に縦向き閉断面を成す縦補強部材を一体結合し、前記左右の締結手段は前記ユニットハウジングの左右の締結部及び縦補強部材を互いに締結する、ことを特徴とする。   According to a third aspect of the present invention, in the vehicle body reinforcing structure according to the first or second aspect, a vertical reinforcing member having a vertically closed cross section is integrally coupled to a vertical wall portion of the vehicle compartment facing wall plate member, and the left and right fastening means Is characterized in that the right and left fastening portions and the vertical reinforcing member of the unit housing are fastened together.

この発明の請求項４は、請求項１，２又は３に記載の車体補強構造において、前記車室対向壁板材はリヤクォータパネルであり、その要部より車内に膨出状に形成されたリヤホイルハウスインナに縦壁部が形成されたことを特徴とする。   According to a fourth aspect of the present invention, in the vehicle body reinforcing structure according to the first, second, or third aspect, the casing-facing wall plate material is a rear quarter panel, and a rear wheel that is formed so as to bulge out from the main part in the vehicle. A vertical wall is formed on the house inner.

この発明の請求項５は、請求項１乃至４のいずれか一つに記載の車体補強構造において、前記フロアその上方に配備されたユニットハウジングとの隙間には弾性膨出部材が圧縮状態で介装されることを特徴とする。   According to a fifth aspect of the present invention, in the vehicle body reinforcing structure according to any one of the first to fourth aspects, an elastic bulging member is interposed in a compressed state in a gap between the floor and the unit housing disposed above the floor. It is characterized by being mounted.

請求項１の発明によれば、フロアの上方であって左右のサイドメンバの上方に左右端が位置して配置されたユニットハウジングとフロアを挟んで下方に並列配備のクロスメンバとの各左右端を左右の車室対向壁板材の縦壁部に一体的に結合することで、ユニットハウジングとクロスメンバとが上下並列配備の剛性強化部材として機能し、これにより後部車体の強度、剛性を充分に高くでき、耐久性を確保できる。しかも、このユニットハウジングはフロア上側よりクロスメンバを排除し、これに代えて剛性強化部材としても駆動ユニットの収容器としても機能でき、クロスメンバを排除した分だけ荷室高さスペースを拡大できる。   According to the first aspect of the present invention, the left and right ends of the unit housing, which is arranged above the floor and above the left and right side members, and the cross members arranged in parallel below the floor with the floor interposed therebetween. Are integrally connected to the vertical wall portions of the left and right vehicle compartment facing wall plates, so that the unit housing and the cross member function as a rigid reinforcement member arranged in the vertical direction, thereby sufficiently increasing the strength and rigidity of the rear vehicle body. It can be increased and durability can be secured. In addition, this unit housing eliminates the cross member from the upper side of the floor, and instead of this, it can function as a rigidity reinforcing member or a container for the drive unit, and the cargo space height space can be expanded by the amount of eliminating the cross member.

請求項２の発明によれば、ショックアブソーバからの路面反力が上端連結部を介してリヤサイドメンバ又は車室対向壁板材の少なくとも一方に入力すると、そこよりユニットハウジングとクロスメンバとが上下並列配備してなる剛性強化部材に入力荷重を分散でき、フロア及び車室対向壁板材を含む後部車体の耐久性を確保できる。   According to the invention of claim 2, when the road surface reaction force from the shock absorber is input to at least one of the rear side member or the vehicle interior facing wall plate via the upper end connecting portion, the unit housing and the cross member are arranged vertically in parallel therefrom. Thus, the input load can be distributed to the rigidity reinforcing member, and the durability of the rear vehicle body including the floor and the vehicle interior facing wall plate material can be ensured.

請求項３の発明によれば、縦補強部材が車室対向壁板材の縦壁部に縦向き閉断面を形成するよう溶着され同部剛性がより強化され、これにユニットハウジングとクロスメンバとが上下並列配備してなる剛性強化部材が左右の縦補強部材で一体結合され、これらが側面視で横長矩形の剛性強化枠体を成すこととなり、これが剛性を十分に強化することができる。このため、上端連結部にショックアブソーバ側から路面反力が入力したとしても、より確実に入力荷重を剛性強化枠体側に分散でき、フロア及び車室対向壁板材を含む後部車体の耐久性を確保できる。   According to the invention of claim 3, the vertical reinforcing member is welded to the vertical wall portion of the vehicle interior facing wall plate member so as to form a vertical closed cross section, and the rigidity of the same portion is further strengthened. The rigidity reinforcing members arranged in the vertical direction are integrally coupled by the left and right vertical reinforcing members, which form a horizontally-long rectangular rigidity reinforcing frame in a side view, which can sufficiently enhance the rigidity. For this reason, even if road surface reaction force is input from the shock absorber side to the upper end connection part, the input load can be more reliably distributed to the rigid reinforcement frame body side, ensuring the durability of the rear vehicle body including the floor and the compartment facing wall plate material. it can.

請求項４の発明によれば、車内に膨出状に形成された比較的剛性の高いリヤホイルハウスインナを車室対向壁板材の要部とし、その縦壁部に縦長閉断面を形成した縦補強部材が溶着されることになるので、側面視で横長矩形の剛性強化枠体の剛性をより強化でき、車室対向壁板材への荷重入力時における変位をより確実に抑制できる。   According to the fourth aspect of the present invention, the longitudinally stiffening has a longitudinally closed cross section formed in the longitudinal wall portion of the vehicle body-facing wall plate material, which is a relatively rigid rear wheel house inner formed in a bulging shape inside the vehicle. Since the members are welded, the rigidity of the horizontally-long rectangular rigidity-enhancing frame body can be further enhanced in a side view, and displacement at the time of load input to the vehicle interior facing wall plate can be more reliably suppressed.

請求項５の発明によれば、ユニットハウジングの下面が弾性膨出部材を介してフロアを下方に密着状態で押圧するので、弾性膨出部材がフロアの変位を抑制すると共に下方のモータ等からの振動を受け振動しやすいフロアに対する制振や、放射音低減の機能を発揮することができる。   According to the invention of claim 5, since the lower surface of the unit housing presses the floor in a close contact state via the elastic bulging member, the elastic bulging member suppresses the displacement of the floor and from the lower motor or the like. It can exhibit functions to control vibration and reduce radiated sound on floors that are susceptible to vibration.

図１の車体補強構造の適用された車両の車体後部の概略断面図である。It is a schematic sectional drawing of the vehicle body rear part of the vehicle to which the vehicle body reinforcement structure of FIG. 1 was applied. 図１の車体補強構造の適用された車両の後部車体の要部概略平面断面図である。FIG. 2 is a schematic plan cross-sectional view of a main part of a rear vehicle body to which the vehicle body reinforcing structure of FIG. 1 is applied. 図１の車体補強構造の適用された車両の車体後部と同部に配備されたサスペンションの要部概略図である。It is the principal part schematic of the suspension arrange | positioned at the vehicle body rear part of the vehicle to which the vehicle body reinforcement structure of FIG. 1 was applied. 図１の車体補強構造の適用された車両の電動駆動装置を概略的に示すブロック図である。It is a block diagram which shows roughly the electric drive device of the vehicle to which the vehicle body reinforcement structure of FIG. 1 was applied. 図１の車体補強構造で用いるリヤホイルハウスインナと縦補強部材の結合部の縦拡大断面図である。FIG. 2 is an enlarged longitudinal sectional view of a joint portion between a rear wheel house inner and a longitudinal reinforcing member used in the vehicle body reinforcing structure of FIG. 図５のＡ−Ａ線拡大断面説明図である。It is an AA line expanded sectional explanatory view of FIG. 図５のＢ−Ｂ線拡大断面説明図である。FIG. 6 is an enlarged cross-sectional explanatory view taken along line BB in FIG. 5. 従来の車体補強構造の適用された車両の後方視での概略断面図である。It is a schematic sectional drawing in the rear view of the vehicle to which the conventional vehicle body reinforcement structure was applied.

以下、本発明の車体補強構造が適用されたシリーズパラレルハイブリッド車（以後単に車両と記す）を説明する。
図１は車両Ｃの車体後部の後方視での要部切欠縦断面図、図２は車体後部のフロア周りの要部切欠平断面図、図３は車体後部の側面視での要部概略図である。
まず、ここでは車体補強構造の説明に先立ち、図４を用いて、車両Ｃに搭載され、同車両Ｃがハイブリッドモードで走行するための電動駆動装置１８を概略説明する。 Hereinafter, a series parallel hybrid vehicle (hereinafter simply referred to as a vehicle) to which the vehicle body reinforcement structure of the present invention is applied will be described.
FIG. 1 is a longitudinal sectional view of the main part of the rear part of the vehicle C in a rear view, FIG. 2 is a sectional plan view of the main part around the floor of the rear part of the vehicle, and FIG. 3 is a schematic view of the main part in a side view of the rear part of the vehicle. It is.
First, prior to the description of the vehicle body reinforcement structure, the electric drive device 18 that is mounted on the vehicle C and travels in the hybrid mode will be schematically described with reference to FIG.

電動駆動装置１８は前部構成部１８１と後部構成部１８２から成る。前部構成部１８１は前電動機Ｍとその回転を変速して前車輪Ｗの前駆動軸ＤＳ１に伝達する前変速機ＣＧ１を備え、後部構成部１８２は後電動機Ｍとその回転を変速して後車輪Ｗの後駆動軸ＤＳ２に伝達する後変速機ＣＧ２を備える。更に、前部構成部１８１の前電動機ＭはバッテリＢＴと発電機１８５に前インバータ１８３を介し連結され、後部構成部１８２の後電動機ＭはバッテリＢＴに後インバータ１８４を介し連結される。更に、前部構成部１８１の前変速機ＣＧ１には前電動機ＭとクラッチＣＨ６を介してエンジンＥ１の機械的駆動力が切換え可能に伝達される。しかも、エンジンＥ１の機械的駆動力が分岐して発電機１８５に加わり、発電機１８５が駆動してバッテリＢＴを充電するよう構成されている。ここで、前後インバータ１８３、１８４は不図示のＥＶ制御手段に接続され、これにより、シリーズモードとシリーズパラレルモードとで車両Ｃを走行するよう切換え制御される。   The electric drive device 18 includes a front part 181 and a rear part 182. The front component 181 includes a front motor M and a front transmission CG1 that shifts the rotation of the front motor M and transmits it to the front drive shaft DS1 of the front wheel W, and the rear component 182 shifts the rotation of the rear motor M and the rotation of the rear motor CG1. A rear transmission CG <b> 2 that transmits to the rear drive shaft DS <b> 2 of the wheel W is provided. Further, the front motor M of the front part 181 is connected to the battery BT and the generator 185 via the front inverter 183, and the rear motor M of the rear part 182 is connected to the battery BT via the rear inverter 184. Further, the mechanical drive force of the engine E1 is transmitted to the front transmission CG1 of the front component 181 via the front motor M and the clutch CH6 in a switchable manner. Moreover, the mechanical driving force of the engine E1 is branched and applied to the generator 185, and the generator 185 is driven to charge the battery BT. Here, the front and rear inverters 183 and 184 are connected to an EV control means (not shown), and are thereby controlled to switch the vehicle C in the series mode and the series parallel mode.

このようなハイブリッドモードで走行できる車両Ｃの車体補強構造を図１〜図７に沿って説明する。
図３に示すように、車両Ｃの後部は、リヤフロア２と、その左右端より上方に延出すると共に車室の側壁を形成する左右の車室対向壁板材６と、それらの上端部６１０に左右端縁が連結されたルーフ１０１とで後部車室（荷室）Ｒを囲み、しかも、後部車室Ｒの後端の不図示の開口をテールゲート１０２で開閉するように形成される。なお、車室の側壁を形成する車室対向壁板材６の要部を成すリヤインナクォータパネル１５は下部中央にホイルハウスインナ１６を備え、上側に前後に長い窓開口１５１が形成される。 A vehicle body reinforcement structure of the vehicle C that can travel in such a hybrid mode will be described with reference to FIGS.
As shown in FIG. 3, the rear portion of the vehicle C includes a rear floor 2, left and right vehicle interior facing wall plates 6 that extend upward from the left and right ends thereof and form side walls of the vehicle interior, and upper end portions 610 thereof. The rear casing (loading chamber) R is surrounded by the roof 101 to which the left and right end edges are connected, and an opening (not shown) at the rear end of the rear casing R is opened and closed by the tailgate 102. The rear inner quarter panel 15 constituting the main part of the vehicle compartment facing wall plate 6 that forms the side wall of the vehicle compartment is provided with a wheel house inner 16 at the center of the lower portion, and a long window opening 151 is formed on the upper side in the front-rear direction.

図１、図２に示すように、リヤフロア２は車幅方向Ｙに長いクロスメンバ３と、そのクロスメンバ３の左右端にそれぞれ溶接により接合（溶着）された前後方向Ｘ（図２参照）に長い左右のリヤサイドメンバ４とを下面に重ね、互いを溶着することで、フロア側の剛性を強化している。
図１，図５に示すように、リヤフロア２の左右端縁には上方に延出する左右の車室対向壁板材６の要部を成すリヤインナクォータパネル１５及びリヤホイルハウスインナ１６の各下端部が溶着される。 As shown in FIGS. 1 and 2, the rear floor 2 has a cross member 3 that is long in the vehicle width direction Y, and a longitudinal direction X (see FIG. 2) that is joined (welded) to the left and right ends of the cross member 3 by welding. The left and right rear side members 4 are overlapped on the lower surface and welded together to enhance the rigidity on the floor side.
As shown in FIGS. 1 and 5, the left and right end edges of the rear floor 2 are respectively provided at the lower end portions of the rear inner quarter panel 15 and the rear wheel house inner 16 that form the main parts of the left and right vehicle compartment facing wall plates 6 that extend upward. Is welded.

図１に示すように、リヤインナクォータパネル１５には後部車室（車内）Ｒに向けて膨出状をなすようにリヤホイルハウスインナ１６が一体的に結合される。このリヤホイルハウスインナ１６には車外側に位置する不図示のリヤホイルハウスアウタが重ねて一体結合され、これにより、後車輪Ｗの上部を収容可能な不図示のリヤホイルハウスが形成される。なお、不図示のリヤホイルハウスアウタの外側縁部は不図示のリヤアウタクオーターパネルに溶着される。   As shown in FIG. 1, a rear wheel house inner 16 is integrally coupled to the rear inner quarter panel 15 so as to bulge out toward the rear compartment (inside the vehicle) R. A rear wheel house outer (not shown) located outside the vehicle is overlapped and integrally coupled to the rear wheel house inner 16, thereby forming a rear wheel house (not shown) that can accommodate the upper portion of the rear wheel W. The outer edge of the rear wheel house outer (not shown) is welded to a rear outer quarter panel (not shown).

リヤホイルハウスインナ１６の車内対向部は車室対向壁板材の縦壁部ｖｗを成し、図６，図７に示すように、上下に長い略ハット形断面の縦長部材である縦補強部材７の左右のフランジｆが重ねられ、相互に溶着される。この縦補強部材７と縦壁部ｖｗとにより縦向き閉断面Ｓ（図６参照）が形成され、これにより、車室対向壁板材６の一部を成すリヤホイルハウスインナ１６の剛性が強化されている。
ここで、図５に示すように、縦補強部材７の下端はリヤフロア２の直下のリヤサイドメンバ４の側壁に重なり、相互に溶着される。 The interior portion of the rear wheel house inner 16 forms a longitudinal wall portion vw of a vehicle interior facing wall plate material. As shown in FIGS. 6 and 7, the longitudinal reinforcing member 7 is a vertically elongated member having a substantially hat-shaped cross section that is vertically long. The left and right flanges f are overlapped and welded together. The vertical reinforcing member 7 and the vertical wall portion vw form a vertical closed cross section S (see FIG. 6), whereby the rigidity of the rear wheel house inner 16 forming part of the vehicle interior facing wall plate 6 is reinforced. Yes.
Here, as shown in FIG. 5, the lower end of the vertical reinforcing member 7 overlaps the side wall of the rear side member 4 immediately below the rear floor 2 and is welded to each other.

このため、左右のリヤサイドメンバ４は車幅方向Ｙに長いクロスメンバ３により互いに一体的に結合され、それら左右のリヤサイドメンバ４は左右のそれぞれの縦補強部材７を介して左右のリヤホイルハウスインナ１６にそれぞれ一体的に結合され、これらに支持されたリヤフロア２と協働して剛性が強化されている。
更に、図５、図７に示すように、縦補強部材７の下端にはショックアブソーバ１２の上端部１２１を支持する上端連結部１３が一体的に形成される。
上端連結部１３は下向き取り付け面１３１を有する受け枠１３２と、その受け枠１３２の前後端一端より下方に屈曲して延びて縦補強部材７の下端部に重ねて溶着される結合片部１３３とを備える。 Therefore, the left and right rear side members 4 are integrally coupled to each other by a cross member 3 that is long in the vehicle width direction Y, and the left and right rear side members 4 are connected to the left and right rear wheel house inners 16 via the left and right vertical reinforcing members 7, respectively. Are integrally coupled to each other, and the rigidity is enhanced in cooperation with the rear floor 2 supported by them.
Further, as shown in FIGS. 5 and 7, the upper end connecting portion 13 that supports the upper end portion 121 of the shock absorber 12 is integrally formed at the lower end of the vertical reinforcing member 7.
The upper end connecting portion 13 includes a receiving frame 132 having a downward mounting surface 131, a coupling piece portion 133 that is bent and extended downward from one end of the front and rear ends of the receiving frame 132 and is overlapped and welded to the lower end portion of the vertical reinforcing member 7. Is provided.

ここで、後述のショックアブソーバ１２の上端部１２１から荷重が上端連結部１３より縦補強部材７で剛性強化されたリヤホイルハウスインナ１６に加わると、その荷重は縦補強部材７とリヤホイルハウスインナ１６よりリヤインナクォータパネル１５、リヤサイドメンバ４、クロスメンバ３、リヤフロア２側に分散して確実に支持される。
次に、図１に示すように、リヤフロア２の上方には上述の電動駆動装置１８の後部構成部１８２で用いる後インバータ１８４を含む駆動ユニットＵが収容されたユニットハウジング８が配備される。
ここで、ユニットハウジング８は後部車室Ｒの側壁を形成する車室対向壁板材６を成す左右のリヤホイルハウスインナ１６の縦壁部ｖｗ間に配備される。図１、２に示すように、ユニットハウジング８は車幅方向Ｙに長く、剛性強化されたアルミ合成板からなる筐体であり、左右のリヤサイドメンバ４の上方に左右端が位置して配置される。 Here, when a load is applied from the upper end 121 of the shock absorber 12 to be described later to the rear wheel house inner 16 reinforced by the vertical reinforcing member 7 from the upper connecting portion 13, the load is applied from the vertical reinforcing member 7 and the rear wheel house inner 16. The rear inner quarter panel 15, the rear side member 4, the cross member 3, and the rear floor 2 are dispersed and reliably supported.
Next, as shown in FIG. 1, a unit housing 8 in which a drive unit U including a rear inverter 184 used in the rear component 182 of the electric drive device 18 is disposed above the rear floor 2.
Here, the unit housing 8 is disposed between the vertical wall portions vw of the left and right rear wheel house inners 16 constituting the vehicle compartment facing wall plate 6 that forms the side wall of the rear vehicle compartment R. As shown in FIGS. 1 and 2, the unit housing 8 is a casing made of an aluminum composite plate that is long in the vehicle width direction Y and reinforced with rigidity, and is arranged with the left and right ends positioned above the left and right rear side members 4. The

ユニットハウジング８の左右端の壁面からは締結部９が突設される。この締結部９は対向するリヤホイルハウスインナ１６の縦壁部ｖｗと重合して一体化された縦補強部材７に対し締結手段１１を介して左右でそれぞれ一体的に結合される。
なお、ユニットハウジング８の下面とリヤフロア２とが対向する部位のほぼ全域において隙間ｔが保持され、この隙間ｔには弾性膨出部材１４が圧縮状態で介装される。
弾性膨出部材１４はフエルトの板材であり、ユニットハウジング８の下面が弾性膨出部材１４を介してリヤフロア２を下方に密着状態で押圧力を加えるように介装される。 Fastening portions 9 project from the wall surfaces at the left and right ends of the unit housing 8. The fastening portion 9 is integrally coupled to the longitudinal reinforcing member 7 which is overlapped and integrated with the longitudinal wall portion vw of the opposing rear wheel house inner 16 via fastening means 11 on the left and right sides.
A gap t is maintained in almost the entire region where the lower surface of the unit housing 8 and the rear floor 2 face each other, and the elastic bulging member 14 is interposed in the gap t in a compressed state.
The elastic bulging member 14 is a felt plate material, and the lower surface of the unit housing 8 is interposed via the elastic bulging member 14 so as to apply a pressing force with the rear floor 2 in a close contact state.

このため、弾性膨出部材１４がリヤフロア２の変位を抑制すると共に下方のモータＭ等からの振動を受け振動しやすいリヤフロア２の振動を抑え、放射音を低減させるという機能を発揮することができる。なお、弾性膨出部材１４はフエルトに代えて、コルク板、ゴム板や軟質樹脂板でも良く、これらの場合も、フエルト板材を採用する場合に近い作用効果が得られる。   For this reason, the elastic bulging member 14 can exhibit the function of suppressing the displacement of the rear floor 2, suppressing the vibration of the rear floor 2 that easily receives vibration from the motor M or the like below, and reducing the radiated sound. . The elastic bulging member 14 may be a cork plate, a rubber plate, or a soft resin plate instead of the felt. In these cases as well, an effect similar to that obtained when the felt plate material is employed can be obtained.

図６に示すように、ユニットハウジング８の左右端の締結手段１１は、前後２枚の板状ブラケット１１１、１１２を備え、これら２枚の板状ブラケット１１１、１１２の車内側端部が締結部９を前後より挟み相互にボルト締めされ、車外側端部が縦補強部材７を前後より挟み相互に複数箇所がそれぞれボルトにより締結される。
このように、ここでのユニットハウジング８は車幅方向Ｙに長く、左右のリヤサイドメンバ４の上方に左右端が位置して配置され、これが従来配備されていたような不図示のクロスメンバと同様に剛性強化部材として機能できる。即ち、剛性強化部材であるユニットハウジング８が後部車室Ｒの車室対向壁板材６を成す左右のリヤホイルハウスインナ１６間を相互に結合し、リヤホイルハウスインナ１６の縦壁部ｖｗの車内方向への変位を確実に抑制でき、リヤフロア２上から従来配備されていたクロスメンバを排除し、これに代えて剛性強化部材として機能できる。 As shown in FIG. 6, the fastening means 11 at the left and right ends of the unit housing 8 includes two front and rear plate-like brackets 111 and 112, and the inner end portions of the two plate-like brackets 111 and 112 are fastening portions. 9 is sandwiched from the front and the rear and bolted to each other, and the vehicle outer end is sandwiched from the front and rear and the plurality of locations are fastened to each other by bolts.
In this way, the unit housing 8 here is long in the vehicle width direction Y, and the left and right ends are positioned above the left and right rear side members 4, which is the same as a cross member (not shown) that has been conventionally provided. It can function as a rigid reinforcing member. That is, the unit housing 8 which is a rigidity reinforcing member couples the left and right rear wheel house inners 16 constituting the vehicle room facing wall plate material 6 of the rear compartment R to each other, and inward of the vertical wall portion vw of the rear wheel house inner 16. Therefore, it is possible to eliminate the cross member conventionally provided from the rear floor 2 and to function as a rigidity reinforcing member instead.

ここではユニットハウジング８とリヤフロア２の下面側のクロスメンバ３とが上下並列配備してなる剛性強化部材を成す。このため、ショックアブソーバ１２からの路面反力が下部に一体結合されている上端連結部１３に入力し、これより車室対向壁板材６を成すリヤホイルハウスインナ１６の縦壁部ｖｗに入力したとしても、ユニットハウジング８とクロスメンバ３とが上下並列配備してなる上下２重に配備の剛性強化部材側に荷重を分散できるので、リヤフロア２及び車室対向壁板材６を含む後部車体Ｂの耐久性を確保できる。 特に、ここでは縦補強部材７がリヤホイルハウスインナ１６の縦壁部ｖｗに縦向き閉断面Ｓを形成するよう溶着され同部剛性がより強化される。この左右２本の縦補強部材７からなる縦向きの閉断面構造部と横向きに並列配備してなるユニットハウジング８及びクロスメンバ３との４部材が組み合わされることで、図１に２点差線で示すように、横長矩形の剛性強化枠体Ｋが形成されることとなる。   Here, the unit housing 8 and the cross member 3 on the lower surface side of the rear floor 2 constitute a rigidity reinforcing member that is vertically arranged in parallel. For this reason, it is assumed that the road surface reaction force from the shock absorber 12 is input to the upper end connecting portion 13 integrally coupled to the lower portion, and is input to the vertical wall portion vw of the rear wheel house inner 16 constituting the vehicle interior facing wall plate 6 from this. In addition, since the load can be distributed to the rigid reinforcing member side of the unit housing 8 and the cross member 3 that are arranged vertically in parallel with each other, the durability of the rear vehicle body B including the rear floor 2 and the vehicle interior facing wall plate 6 can be obtained. Can be secured. In particular, here, the vertical reinforcing member 7 is welded so as to form a vertical closed section S on the vertical wall portion vw of the rear wheel house inner 16, and the rigidity of the same portion is further strengthened. By combining the four members of the vertical closed cross-section structure part composed of the two left and right vertical reinforcing members 7 and the unit housing 8 and the cross member 3 arranged in parallel in the horizontal direction, a two-dotted line in FIG. As shown in the drawing, a horizontally elongated rectangular rigid reinforcing frame K is formed.

この４部材が協働して形成する剛性強化枠体Ｋは車体後部の剛性を十分に強化することができ、特に、縦補強部材７とリヤホイルハウスインナ１６の縦壁部ｖｗとで形成する縦向き閉断面部の側方より上端連結部１３を介してショックアブソーバ１２からの路面反力が入力したとしても、確実に入力荷重を剛性強化枠体Ｋ側に分散でき、リヤフロア２及び車室対向壁板材６を含む後部車体の耐久性を十分に強化できる。
次に、剛性強化枠体Ｋに強化された部位のリヤフロア２の直下の空間には、図１に示すように、後電動機Ｍ及び後変速機ＣＧが配備される。 The rigidity-enhanced frame K formed by the cooperation of these four members can sufficiently enhance the rigidity of the rear part of the vehicle body. In particular, the vertical reinforcing member 7 and the vertical wall part vw of the rear wheel house inner 16 are formed. Even if the road surface reaction force from the shock absorber 12 is input from the side of the closed cross-section portion through the upper end connecting portion 13, the input load can be reliably distributed to the rigidity reinforcing frame K side, and the rear floor 2 and the vehicle compartment are opposed to each other. The durability of the rear vehicle body including the wall plate material 6 can be sufficiently enhanced.
Next, as shown in FIG. 1, a rear motor M and a rear transmission CG are provided in a space immediately below the rear floor 2 at a portion reinforced by the rigid reinforcement frame K.

図１、２に示すように、左右のリヤサイドメンバ４は、この部位において、それぞれ車内側に膨出するよう湾曲して突き出すサブサイドメンバ５０１と、左右サブサイドメンバ５０１間を一体結合するＵ字状のサブクロスメンバ５０２とからなる補助剛性枠体５を一体的に安定して締結する。このような補助剛性枠体５によっても車体後部の剛性が強化されている。図１中符号２２は補助剛性枠体５に取り付けられ、後電動機Ｍ及び後変速機ＣＧを保護するカバーを示す。
左右サブサイドメンバ５０１はそれぞれの前後端が不図示のインシュレータを介しリヤサイドメンバ４の結合部４０１にボルトにより締結される。これにより後電動機Ｍ及び後変速機ＣＧからの振動、騒音が左右のリヤサイドメンバ４側に伝わることを抑制している。 As shown in FIGS. 1 and 2, the left and right rear side members 4 are formed in a U-shape that integrally couples between the left and right sub side members 501 and a sub side member 501 that curves and protrudes so as to bulge toward the vehicle interior. The auxiliary rigid frame 5 including the sub-cross member 502 is integrally and stably fastened. Such an auxiliary rigid frame 5 also strengthens the rigidity of the rear part of the vehicle body. Reference numeral 22 in FIG. 1 denotes a cover that is attached to the auxiliary rigid frame 5 and protects the rear motor M and the rear transmission CG.
The front and rear ends of the left and right sub-side members 501 are fastened to the connecting portion 401 of the rear side member 4 with bolts via an insulator (not shown). As a result, vibration and noise from the rear motor M and the rear transmission CG are suppressed from being transmitted to the left and right rear side members 4.

図１、３に示すように、リヤサスペンション１７の上下アーム２６、２７はそれらの支点端ｊ１、ｊ２が補助剛性枠体５に枢支され、揺動端がナックル２１に玉継ぎ手ｂｊで連結され、ナックル２１の前端はトレーリングアーム２３を介しリヤサイドメンバ４の前方側のブラケット２４に揺動可能にピン結合されている。ナックル２１には後車輪Ｗが枢支される。左右各後車輪Ｗの駆動軸ＷＳと後変速機ＣＧの後部側の出力軸ＷＳ１との間は等速ジョイント２５、中間軸ＷＳ２を介し連結され、後車輪Ｗが上下動可能に後変速機ＣＧの回転力を受けて駆動することを可能としている。
なお、下アーム２７の揺動端近傍はショックアブソーバ１２の下端部１２２とピン結合しており、ショックアブソーバ１２を介して車室対向壁板材６を成すリヤホイルハウスインナ１６側の上端連結部１３に連結される。これにより、後車輪Ｗが受けた路面反力をショックアブソーバ１２より上端連結部１３に入力するように構成されている。 As shown in FIGS. 1 and 3, the upper and lower arms 26 and 27 of the rear suspension 17 are pivotally supported by the auxiliary rigid frame 5 at their fulcrum ends j1 and j2 and the swing end is connected to the knuckle 21 by a ball joint bj. The front end of the knuckle 21 is pivotally coupled to a bracket 24 on the front side of the rear side member 4 via a trailing arm 23 so as to be swingable. A rear wheel W is pivotally supported on the knuckle 21. The drive shaft WS of the left and right rear wheels W and the output shaft WS1 on the rear side of the rear transmission CG are connected via a constant velocity joint 25 and an intermediate shaft WS2, so that the rear wheel CG can move up and down. It is possible to drive by receiving the rotational force.
The vicinity of the swinging end of the lower arm 27 is pin-coupled to the lower end 122 of the shock absorber 12, and is connected to the upper end connecting portion 13 on the rear wheel house inner 16 side that forms the vehicle interior facing wall plate 6 via the shock absorber 12. Connected. Thus, the road surface reaction force received by the rear wheel W is input from the shock absorber 12 to the upper end connecting portion 13.

このような後部車体構造を備えた後部車体は後部車室（荷室）Ｒに荷物を搬入する場合、フロア上の弾性膨出部材１４であるフエルトとその上に載置されたユニットハウジング８は過度にフロア上方空間を狭めることがないので、十分に荷物収納スペースを確保できる。
更に、車両Ｃがハイブリッドモードで走行し、後部構成部１８２の後電動機Ｍや後変速機ＣＧが駆動しても、ユニットハウジング８の下面が弾性膨出部材１４を介してリヤフロア２を下方に密着状態で押圧するので、弾性膨出部材１４がリヤフロア２の変位を抑制すると共に下方のモータＭ等からの振動を受け振動しやすいリヤフロア２に対する制振や、放射音低減の機能を発揮することができ、車室の居住性を改善できる。 When the rear vehicle body having such a rear vehicle body structure loads a load into the rear vehicle compartment (loading chamber) R, the felt which is the elastic bulging member 14 on the floor and the unit housing 8 mounted thereon are as follows. Since the space above the floor is not excessively narrowed, a sufficient luggage storage space can be secured.
Furthermore, even when the vehicle C travels in the hybrid mode and the rear motor M and the rear transmission CG of the rear component 182 are driven, the lower surface of the unit housing 8 closely contacts the rear floor 2 via the elastic bulging member 14. Since the elastic bulging member 14 suppresses the displacement of the rear floor 2, the elastic bulging member 14 exhibits functions of damping the rear floor 2 that is likely to vibrate due to vibrations from the motor M below and the function of reducing radiated sound. This can improve the comfort of the passenger compartment.

更に、車両Ｃの走行中は左右２本の縦補強部材７からなる縦向きの閉断面構造部と横向きの上下並列配備してなるユニットハウジング８とクロスメンバ３との４部材が協働して横長矩形の剛性強化枠体Ｋが形成されるので、車体後部の剛性を十分に強化することができ、特に、上端連結部１３を介してショックアブソーバ１２からの路面反力が入力したとしても、確実に入力荷重を剛性強化枠体Ｋ側に分散でき、リヤフロア２及び車室対向壁板材６を含む後部車体の耐久性を十分に強化でき、車両の耐久性が向上させることができる。   Further, while the vehicle C is traveling, the four members of the vertical closed cross-section structure portion composed of the left and right vertical reinforcing members 7 and the laterally arranged unit housing 8 and the cross member 3 cooperate with each other. Since the horizontally-long rectangular rigidity-enhancing frame K is formed, the rigidity of the rear part of the vehicle body can be sufficiently enhanced. In particular, even if the road surface reaction force from the shock absorber 12 is input via the upper end connecting part 13, The input load can be reliably distributed to the rigidity-enhanced frame K side, the durability of the rear vehicle body including the rear floor 2 and the compartment facing wall plate 6 can be sufficiently enhanced, and the durability of the vehicle can be improved.

上述のところで、車室対向壁板材の縦壁部ｖｗをリヤホイルハウスインナ１６の車内対向部に形成し、その縦壁部ｖｗに縦補強部材７が溶着される構成を説明したが、場合により、不図示のリヤインナクォータパネル側の部位に縦壁部を形成し、そこに不図示の縦補強部材７が溶着される構成を採ってもよく、この場合も車体後部の剛性を十分に強化することができる。
上述のところにおいて、車両はハイブリッド車として説明したが、電気自動車（ＥＶ）やその他の電動機の出力により車輪を駆動して走行する車両でも良く、いずれの場合も図１の車体補強構造が適用された車両と同様の作用効果が得られる。 As described above, the configuration in which the vertical wall portion vw of the vehicle facing wall plate material is formed in the vehicle facing portion of the rear wheel house inner 16 and the vertical reinforcing member 7 is welded to the vertical wall portion vw has been described. A configuration may be adopted in which a vertical wall portion is formed in a portion on the rear inner quarter panel side (not shown) and a vertical reinforcing member 7 (not shown) is welded thereto, and in this case, the rigidity of the rear portion of the vehicle body is sufficiently strengthened. be able to.
In the above description, the vehicle is described as a hybrid vehicle. However, the vehicle may be a vehicle that travels by driving wheels by the output of an electric vehicle (EV) or other electric motor, and the vehicle body reinforcement structure of FIG. 1 is applied in any case. The same effect as that of the other vehicle can be obtained.

２ リヤフロア
３ クロスメンバ
４ リヤサイドメンバ
６ 車室対向壁板材
７ 縦補強部材
８ ユニットハウジング
９ 締結部
１１ 締結手段
１２ ショックアブソーバ
１３ 上端連結部
１４ 弾性膨出部材
１５ リヤクォータパネル
１６ リヤホイルハウスインナ
ｔ 隙間
ｖｗ 縦壁部
Ｂ 車体
Ｃ 車両
Ｍ モータ
Ｒ 後部車室
Ｕ 駆動ユニット
Ｗ 車輪
ＷＳ 駆動軸
Ｙ 車幅方向 2 rear floor 3 cross member 4 rear side member 6 compartment facing wall plate material 7 vertical reinforcing member 8 unit housing 9 fastening portion 11 fastening means 12 shock absorber 13 upper end connecting portion 14 elastic bulging member 15 rear quarter panel 16 rear wheel house inner t gap vw Vertical wall B Car body C Vehicle M Motor R Rear compartment U Drive unit W Wheel WS Drive shaft Y Vehicle width direction

Claims (5)

車輪をモータで駆動して走行する車両のフロアの下面に結合され、かつ、車幅方向に長いクロスメンバの左右端にそれぞれ接合された前後に長い左右のサイドメンバと、前記モータの駆動ユニットを収容すると共に前記フロアの上方であって前記左右のサイドメンバの上方に左右端が位置して配置されたユニットハウジングと、該ユニットハウジングの左右端に設けた左右の締結部と、前記フロアの左右端に接合され車室の側壁を形成する車室対向壁板材の縦壁部と、前記締結部と前記縦壁部とを互いに締結する左右の締結手段と、を備えた、
ことを特徴とする車体補強構造。 Left and right side members that are coupled to the lower surface of the floor of a vehicle that travels with wheels driven by a motor and that are joined to the left and right ends of a cross member that is long in the vehicle width direction, and a drive unit for the motor A unit housing which is accommodated and positioned above the floor and above the left and right side members, and a left and right fastening portion provided at the left and right ends of the unit housing; A vertical wall portion of a vehicle compartment facing wall plate member joined to the end to form a side wall of the vehicle compartment, and left and right fastening means for fastening the fastening portion and the vertical wall portion to each other,
A vehicle body reinforcement structure characterized by that. 前記サイドメンバはリヤサイドメンバであり、
前記リヤサイドメンバ又は車室対向壁板材の少なくとも一方に前記車輪のサスペンション装置であるショックアブソーバの上端を支持する上端連結部が形成された、
ことを特徴とする請求項１記載の車体補強構造。 The side member is a rear side member;
An upper end connecting portion that supports an upper end of a shock absorber that is a suspension device of the wheel is formed on at least one of the rear side member or the vehicle interior facing wall plate material,
The vehicle body reinforcing structure according to claim 1. 前記車室対向壁板材の縦壁部に縦向き閉断面を成す縦補強部材を一体結合し、前記左右の締結手段は前記ユニットハウジングの左右の締結部及び縦補強部材を互いに締結する、
ことを特徴とする請求項１または２記載の車体補強構造。 A vertical reinforcing member having a vertical closed cross section is integrally coupled to a vertical wall portion of the casing facing wall plate material, and the left and right fastening means fasten the left and right fastening portions and the vertical reinforcing member of the unit housing to each other.
The vehicle body reinforcing structure according to claim 1 or 2, wherein 前記車室対向壁板材はリヤクォータパネルであり、その要部より車内に膨出状に形成されたリヤホイルハウスインナに縦壁部が形成された、
ことを特徴とする請求項１，２又は３に記載の車体補強構造。 The vehicle room facing wall plate material is a rear quarter panel, and a vertical wall portion is formed on a rear wheel house inner formed in a bulging shape from the main part of the vehicle.
The vehicle body reinforcing structure according to claim 1, 2, or 3. 前記フロアとその上方に配備されたユニットハウジングとの隙間には弾性膨出部材が圧縮状態で介装される、
ことを特徴とする請求項１乃至４のいずれか一つに記載の車体補強構造。 An elastic bulge member is interposed in a compressed state in a gap between the floor and the unit housing disposed above the floor,
The vehicle body reinforcing structure according to any one of claims 1 to 4, wherein the vehicle body reinforcing structure is provided.
JP2010086272A 2010-04-02 2010-04-02 Body reinforcement structure Expired - Fee Related JP5304711B2 (en)

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