JP2006240518A - Vehicle body structure - Google Patents

Vehicle body structure Download PDF

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JP2006240518A
JP2006240518A JP2005060301A JP2005060301A JP2006240518A JP 2006240518 A JP2006240518 A JP 2006240518A JP 2005060301 A JP2005060301 A JP 2005060301A JP 2005060301 A JP2005060301 A JP 2005060301A JP 2006240518 A JP2006240518 A JP 2006240518A
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battery
vehicle body
panel member
crushable zone
zone
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JP4293144B2 (en
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Toshihiko Kawai
俊彦 川井
Satoshi Matsunaga
聡志 松永
Hiroyuki Kurokawa
博幸 黒川
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body structure in which a crushable zone at a front side of a panel member can be sufficiently deformed without being affected by a battery at collision. <P>SOLUTION: The battery 15 is arranged near the outside of a cabin of the panel member 3 separated from the crushable zone 8. Thereby, a deformation amount bringing about sufficient energy absorption can be ensured on the crushable zone 8 without being affected by mounting of the battery 15. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、バッテリーの搭載構造を改善した車体構造に関する。   The present invention relates to a vehicle body structure having an improved battery mounting structure.

自動車（車両）では、エンジンを始動させるなどのためにバッテリーが搭載されている。一般には、バッテリーは、車体前後方向に延設され、車室の内外を仕切るパネル部材（車室前後方向を区画する部材）前方へ張り出すサイドメンバの途中に設置されている（特許文献１などを参照）。
特開平１１−３４８６８９号公報 A car (vehicle) is equipped with a battery for starting the engine. Generally, the battery is installed in the middle of a side member that extends in the front-rear direction of the vehicle body and extends forward of a panel member (a member that divides the front-rear direction of the vehicle compartment) that partitions the interior and exterior of the vehicle interior (Patent Document 1, etc.) See).
Japanese Patent Laid-Open No. 11-348689

ところで、通常、自動車の車体は、パネル部材前方へ張り出すサイドメンバのフレーム部分を座屈変形可能な部分とし、同構造にて、パネル部材の前方にクラッシュブルゾーンを形成することが行なわれている。これにより、車体前部から所定値以上の衝撃荷重が加わると、ダッシュパネルの前方のフレーム部分が座屈変形し、加わる衝撃エネルギーを吸収して、車室内の乗員を衝撃から保護するようにしてある。   By the way, the body of an automobile usually has a frame portion of a side member that protrudes forward of the panel member as a portion capable of buckling deformation, and a crashable zone is formed in front of the panel member with the same structure. Yes. As a result, when an impact load of a predetermined value or more is applied from the front part of the vehicle body, the frame portion in front of the dash panel is buckled and deformed, absorbing the applied impact energy and protecting the passengers in the vehicle interior from the impact. is there.

ところが、一般のバッテリーの搭載は、クラッシャブルゾーンの途中にバッテリーが配置される結果となるので、衝突時、クラッシャブルゾーンの変形量（衝撃エネルギーを吸収するための変形量）が、バッテリーの影響を受けて、十分に確保されないおそれがある。   However, the installation of a general battery results in the battery being placed in the middle of the crushable zone, so the amount of deformation of the crushable zone (the amount of deformation to absorb impact energy) at the time of a collision is influenced by the battery. May not be secured sufficiently.

そこで、自動車では、その対応として、クラッシャブルゾーンの長さを増加させて、衝撃吸収性能を補うことが行なわれている。しかし、これは、車体フロント部に制約を与え、デザインの自由度が損なわれてしまう問題になっている。   Therefore, in the automobile, as a countermeasure, the length of the crushable zone is increased to supplement the shock absorbing performance. However, this imposes a restriction on the front part of the vehicle body, and the degree of freedom in design is impaired.

本発明の目的は、衝突時、バッテリーに影響されずに、パネル部材前方のクラッシャブルゾーンを十分に変形可能とした車体構造を提供することにある。   An object of the present invention is to provide a vehicle body structure that can sufficiently deform a crushable zone in front of a panel member without being affected by a battery at the time of a collision.

請求項１に記載の発明は、上記目的を達成するために、バッテリーを、クラッシャブルゾーンから外れた、パネル部材の車室外側近傍に配置したことにある。   In order to achieve the above object, the invention according to claim 1 is that the battery is disposed in the vicinity of the outside of the vehicle compartment of the panel member, which is out of the crushable zone.

これにより、クラッシャブルゾーンは、バッテリーの搭載に影響されずに、十分なエネルギー吸収をもたらす変形量が確保し得る。   As a result, the crushable zone can ensure a sufficient amount of deformation to absorb energy without being affected by the mounting of the battery.

請求項２に記載の発明は、上記目的に加え、さらに併せて衝突時におけるバッテリーの破損や脱落が回避されるよう、バッテリーは、パネル部材とクラッシャブルゾーンとの間に有する非クラッシャブルゾーン内に収められて、パネル部材の直前方の位置に据え付けた。   In addition to the above object, the invention according to claim 2 further includes a battery in a non-crushable zone provided between the panel member and the crushable zone so that the battery is prevented from being damaged or dropped during a collision. And installed in the position just before the panel member.

請求項３に記載の発明は、上記目的に加え、さらにバッテリーで良好な操縦安定性がもたらせられるよう、バッテリーが、車体に取り付く車輪の軸心を延長した軸線付近に配置されて、パネル部材の直前方の位置に据え付けられるようにした。   According to a third aspect of the present invention, in addition to the above object, the battery is disposed in the vicinity of the axis extending the axis of the wheel attached to the vehicle body so that the battery can provide good steering stability. It can be installed at the position just before the member.

請求項４に記載の発明は、上記目的加え、さらにバッテリーの搭載を活用して、車体の剛性強度を高めるために、バッテリーは、車幅方向へ延びるとともに車体の骨格部材をなすクロスメンバに支持されて、パネル部材の直前方の位置に据え付けられるようにした。   According to a fourth aspect of the present invention, in order to increase the rigidity and strength of the vehicle body by utilizing the mounting of the battery in addition to the above object, the battery extends in the vehicle width direction and is supported by the cross member that forms the skeleton member of the vehicle body. It was made to install in the position just before a panel member.

請求項１に記載の発明によれば、バッテリーが、クラッシャブルゾーンにおける変形に影響を与えずにすむので、衝突時、クラッシャブルゾーンでは、十分なエネルギー吸収をもたらす変形量を確保することができる。   According to the first aspect of the present invention, since the battery does not affect the deformation in the crushable zone, it is possible to secure a deformation amount that provides sufficient energy absorption in the crushable zone at the time of collision. .

それ故、別途、クラッシャブルゾーンを増加させずに、十分なエネルギー吸収性能を確保することができ、車体フロント部におけるデザインの自由度の向上を図ることができる。   Therefore, a sufficient energy absorption performance can be ensured without increasing the crushable zone separately, and the degree of design freedom at the vehicle body front portion can be improved.

請求項２に記載の発明によれば、さらに上記効果に加え、さらにバッテリーがパネル部材直前の非クラッシャブルゾーン内に収めてあるので、衝突時、バッテリーの破損や脱落が回避できる。   According to the second aspect of the present invention, in addition to the above effect, the battery is housed in the non-crushable zone immediately before the panel member, so that the battery can be prevented from being damaged or dropped at the time of collision.

請求項３に記載の発明によれば、さらに上記効果に加え、さらにバッテリーの重量の大部分が車輪に直に加わるので、優れた操縦安定性がもたらせられる。   According to the third aspect of the present invention, in addition to the above-described effect, a large part of the weight of the battery is directly added to the wheel, so that excellent steering stability can be provided.

請求項４に記載の発明によれば、さらに上記効果に加え、クロスメンバは、バッテリーの支持だけでなく、車体の剛性強度の向上を図ることができる。   According to the invention described in claim 4, in addition to the above effects, the cross member can not only support the battery but also improve the rigidity strength of the vehicle body.

［一実施形態］
以下、本発明を図１〜図３に示す一実施形態にもとづいて説明する。 [One Embodiment]
Hereinafter, the present invention will be described based on an embodiment shown in FIGS.

図１は、車両、例えばＲＲ式（リヤエンジン、リヤドライブ）の乗用車（自動車）の車体の前部側を示し、図２は同じく同部分の平面図を示している。   FIG. 1 shows a front side of a vehicle body, for example, an RR type (rear engine, rear drive) passenger car (automobile), and FIG. 2 shows a plan view of the same part.

図１および図２を参照して車体の構造を説明すると、同図中１は、車幅方向両側に配設された一対のサイドメンバ（車体の骨格を形成する部材）である。サイドメンバ１は、筒状（閉断面）をなして、車体前後方向に延びている。このサイドメンバ１間には、フロア面を形成するフロアパネル部材２が敷設されている。このフロアパネル部材２の前端部には、フロア面から立ち上がるダッシュパネル部材３（本願のパネル部材に相当）が設けられている。このダッシュパネル部材３には、ブレーキ操作力を増加する装置、例えば倍力装置４や各種ペダル機器（図示しない）やステアリング機器（図示しない）が組み込まれる。またフロアパネル部材２の後端部には、車体後方の荷室の続くリヤパネル部材（いずれも図示しない）が設けられていて、ダッシュパネル部材３から後側の領域に、乗員が収容可能な車室内６を形成する。   The structure of the vehicle body will be described with reference to FIGS. 1 and 2. In FIG. 1, reference numeral 1 denotes a pair of side members (members forming the skeleton of the vehicle body) disposed on both sides in the vehicle width direction. The side member 1 has a cylindrical shape (closed cross section) and extends in the longitudinal direction of the vehicle body. A floor panel member 2 that forms a floor surface is laid between the side members 1. A dash panel member 3 (corresponding to the panel member of the present application) rising from the floor surface is provided at the front end of the floor panel member 2. The dash panel member 3 incorporates a device that increases the brake operation force, such as a booster 4, various pedal devices (not shown), and a steering device (not shown). Further, a rear panel member (none of which is shown) following the cargo compartment at the rear of the vehicle body is provided at the rear end portion of the floor panel member 2, and a vehicle that can accommodate an occupant in a rear region from the dash panel member 3. A room 6 is formed.

また車室内６の前部（車体前後方向）を区画するダッシュパネル部材３からは、サイドメンバ１の各前部が、前方へ張り出している。これら張り出したフレーム部分１ａの各端部間には、フロントエンドを形成するクロスメンバ７（図２に図示）が結合してある。これら前方に張り出したフレーム部分１ａを用いて、ダッシュパネル部材３の前方（車室外側）の部位、すなわち車体のフロント部分１６に、クラッシャブルゾーン８を形成している。すなわち、フレーム部分１ａは、いずれも衝突などで、車体前部（フロントエンドのクロスメンバ７：車体端部）から所定値以上の衝撃荷重が加わると、座屈変形が生じる構造となっている。つまり、フレーム部分１ａに座屈変形が生じると、加わる衝撃エネルギーを吸収して、加わる衝撃から、車室内６に居る乗員が保護されるようにしてある。この衝撃を吸収する変形可能領域をクラッシャブルゾーン８という。   Further, each front portion of the side member 1 projects forward from the dash panel member 3 that defines the front portion (the vehicle body longitudinal direction) of the vehicle interior 6. A cross member 7 (shown in FIG. 2) that forms a front end is coupled between the ends of the projecting frame portion 1a. A crushable zone 8 is formed in a front portion (outside of the passenger compartment) of the dash panel member 3, that is, the front portion 16 of the vehicle body, using the frame portion 1a projecting forward. That is, the frame portion 1a has a structure in which buckling deformation occurs when an impact load of a predetermined value or more is applied from the front portion of the vehicle body (front end cross member 7: vehicle body end portion) due to a collision or the like. In other words, when buckling deformation occurs in the frame portion 1a, the applied impact energy is absorbed, and the passenger in the vehicle interior 6 is protected from the applied impact. The deformable region that absorbs this impact is called a crushable zone 8.

またフレーム部材１ａの根元部となる、ダッシュパネル部材３から前方直前の各フレーム部位には、サスペンション支持用の一対の台座部材、例えばストラットハウス９が取着されている。ストラットハウス９は、いずれもタワー状に形成されている。そして、各ストラットハウス９に、サスペンション装置、例えばストラット式のサスペンション装置（図示しない）を介して、車輪、ここでは前輪１０（操舵輪）が支持される。またこれらストラットハウス９の剛性強度から、ダッシュパネル部材３の直前（車室外側近傍）の部位、具体的にはストラットハウス９を挟んだダッシュパネル部材３とクラッシャブルゾーン８の後端との間に、座屈変形が発生しにくい部分、すなわち非クラッシャブルゾーン１１を有してある。   In addition, a pair of pedestal members for supporting a suspension, for example, a strut house 9 is attached to each frame portion immediately before the dash panel member 3 which is a base portion of the frame member 1a. All the strut houses 9 are formed in a tower shape. Each strut house 9 supports a wheel, here, a front wheel 10 (steering wheel) via a suspension device, for example, a strut suspension device (not shown). Further, from the rigidity strength of these strut houses 9, a portion immediately before the dash panel member 3 (near the outside of the passenger compartment), specifically, between the dash panel member 3 sandwiching the strut house 9 and the rear end of the crushable zone 8 is used. In addition, a portion where buckling deformation hardly occurs, that is, a non-crushable zone 11 is provided.

一方、１５は、エンジンの始動などで用いられる自動車用のバッテリーを示す。このバッテリー１５が、ダッシュパネル部材３の前方（車室外側）のフロント部分１６のうち、クラッシャブルゾーン８からずれた地点、すなわち最もダッシュパネル部材３寄り（車室外）の地点に配設してある。これで、バッテリー１５は、ダッシュパネル部材３の直前（車室外側近傍）の位置に配置させてある。さらに述べると、バッテリー１５は、倍力装置４と並んで、各ストラットハウス９間で挟まれるスペース内に横向きに収めてある。この地点は、前輪１０の軸心を延長した軸線Ｓの付近となっている。   On the other hand, reference numeral 15 denotes an automobile battery used for starting an engine or the like. The battery 15 is disposed at a point that is shifted from the crushable zone 8 in the front portion 16 in front of the dash panel member 3 (outside the passenger compartment), that is, the point closest to the dash panel member 3 (outside the passenger compartment). is there. Thus, the battery 15 is disposed at a position immediately before the dash panel member 3 (in the vicinity of the outside of the passenger compartment). More specifically, the battery 15 is placed side by side in a space between the strut houses 9 along with the booster 4. This point is in the vicinity of an axis S that extends the axis of the front wheel 10.

バッテリー１５は、この軸線付近にならって車幅方向に延びる艤装機器用クロスメンバ１７に搭載されている。なお、１８は、バッテリー１５をクロスメンバ１７に保持させるホルダー部材を示す。このサイドメンバ１間に沿うクロスメンバ１７の各端部は、それぞれサイドメンバ１に結合されている。つまり、同クロスメンバ１７は、バッテリー１５をダッシュパネル部材３の直前（車室外側近傍）の地点で支持するだけでなく、車体の骨格部材をなす構造にもしてある。   The battery 15 is mounted on a cross member 17 for an outfitting device that extends in the vehicle width direction along the vicinity of the axis. Reference numeral 18 denotes a holder member for holding the battery 15 on the cross member 17. Each end of the cross member 17 between the side members 1 is coupled to the side member 1. That is, the cross member 17 has a structure that not only supports the battery 15 at a point immediately before the dash panel member 3 (near the outside of the passenger compartment) but also forms a skeleton member of the vehicle body.

なお、フロント部分１６には、バッテリー１５の他、ラジエータやスペアタイヤ（図示しない）などしか搭載されない構造となっている。   The front portion 16 has a structure in which only a radiator, a spare tire (not shown), and the like are mounted in addition to the battery 15.

但し、図１および図２において、１９は、ストラットハウス９に形成されたホイールハウスインナ部材を示す。   However, in FIGS. 1 and 2, reference numeral 19 denotes a wheel house inner member formed in the strut house 9.

こうした車体構造により、衝撃の吸収の際、クラッシャブルゾーン８を十分に活用した衝撃吸収が行なわれる。   With such a vehicle body structure, the shock absorption that fully utilizes the crushable zone 8 is performed when absorbing the shock.

すなわち、今、例えば衝突（車体前部）により、図２に示されるように所定値以上の衝撃荷重Ｆが、車体前部（車体端部）のクロスメンバ７から、それぞれフレーム部分１ａへ入力されたとする。すると、図３に示されるようにクラッシャブルゾーン８を形成するフレーム部分１ａは、その荷重Ｆに耐え切れなくなり、４面の壁部が波形状に押し潰される。これにより、フロント部分１６におけるクラッシャブルゾーン８は圧潰され（座屈変形）、加わる衝撃エネルギーを吸収する。   That is, for example, due to a collision (front part of the vehicle body), an impact load F of a predetermined value or more is input to the frame part 1a from the cross member 7 at the front part (vehicle body end part) of the vehicle body as shown in FIG. Suppose. Then, as shown in FIG. 3, the frame portion 1a forming the crushable zone 8 cannot withstand the load F, and the four wall portions are crushed into a wave shape. Thereby, the crushable zone 8 in the front portion 16 is crushed (buckled deformation) and absorbs the applied impact energy.

このとき、バッテリー１５は、クラッシャブルゾーン８の途中ではなく、ダッシュパネル部材３の直前（車室外側近傍）の地点といった、クラッシャブルゾーン８から外れた地点に据え付けてあるから、クラッシャブルゾーン８は、バッテリー１５に影響されず、ストラットハウス９まで十分に変形できる状態が確保される。図３中のＬは、クラッシャブルゾーン８で確保される最大変形量を示す。   At this time, the battery 15 is installed not at the middle of the crushable zone 8, but at a point outside the crushable zone 8, such as a point just before the dash panel member 3 (near the outside of the passenger compartment). Is not affected by the battery 15, and a state in which the strut house 9 can be sufficiently deformed is ensured. L in FIG. 3 indicates the maximum deformation amount secured in the crushable zone 8.

それ故、フロント部分１６において、別途、クラッシャブルゾーン８を増加する手法を用いずに、十分なるエネルギー吸収性能が確保できる。したがって、フロント部分１６におけるデザインの自由度の向上を図ることができる。特にバッテリー１５は、クラッシャブルゾーン８の後端に形成される非クラッシャブルゾーン１１内に収まるように配置してあるので、クロスメンバ７による挟み付けを要因としたバッテリー１５の破損や脱落も防げる。   Therefore, sufficient energy absorption performance can be ensured in the front portion 16 without using a separate method for increasing the crushable zone 8. Therefore, it is possible to improve the degree of freedom of design in the front portion 16. In particular, since the battery 15 is disposed so as to be accommodated in the non-crushable zone 11 formed at the rear end of the crushable zone 8, the battery 15 can be prevented from being damaged or dropped due to the pinching by the cross member 7. .

しかも、バッテリー１５は、前輪１０の軸線付近に配置してあるので、前輪１０には、バッテリー１５の大部分の荷重が、直接、加わり、操縦安定性も併せて向上する。   In addition, since the battery 15 is disposed in the vicinity of the axis of the front wheel 10, most of the load of the battery 15 is directly applied to the front wheel 10, and the steering stability is also improved.

そのうえ、バッテリー１５の据え付けには、車体の骨格部材をなすクロスメンバ１７に設置する構造を採用したので、バッテリー１５の支持だけでなく、併せて車体の剛性強度の向上が図れる利点もある。   In addition, since the battery 15 is installed on the cross member 17 constituting the skeleton member of the vehicle body, there is an advantage that not only the battery 15 but also the rigidity strength of the vehicle body can be improved.

なお、本発明は上述した一実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲内で種々変更して実施しても構わない。例えば一実施形態は、リヤエンジンリヤドライブの自動車を例に挙げたが、これに限らず、他のエンジン搭載タイプ、ドライブタイプの自動車に本発明を適用しても構わない。   The present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the present invention. For example, in the embodiment, a rear engine rear drive vehicle is taken as an example. However, the present invention is not limited to this, and the present invention may be applied to other engine mounted type and drive type vehicles.

本発明の一実施形態の要部となる車体構造の前部側を示す斜視図。The perspective view which shows the front part side of the vehicle body structure used as the principal part of one Embodiment of this invention. 同じく平面図。FIG. 衝突時におけるダッシュパネル前方の状態を説明するための平面図。The top view for demonstrating the state ahead of a dash panel at the time of a collision.

符号の説明Explanation of symbols

１ａ…フレーム部分、２…フロアパネル部材、３…ダッシュパネル部材（車室内外を区画するパネル部材）、８…クラッシャブルゾーン、９…ストラットハウス、１０…前輪（車輪）、１１…非クラッシャブルゾーン、１５…バッテリー、１７…クロスメンバ。   DESCRIPTION OF SYMBOLS 1a ... Frame part, 2 ... Floor panel member, 3 ... Dash panel member (panel member which divides vehicle interior and exterior), 8 ... Crushable zone, 9 ... Strut house, 10 ... Front wheel (wheel), 11 ... Non-crushable Zone, 15 ... battery, 17 ... cross member.

Claims (4)

車室の内外を区画するパネル部材と、同パネル部材の車室外側に形成され、衝突時、車体端部から加わる衝突エネルギーを吸収するクラッシャブルゾーンと、車体に据え付けられるバッテリーとを有し、
前記バッテリーが、前記クラッシャブルゾーンから外れた前記パネル部材の車室外側近傍に配置されることを特徴とする車体構造。 A panel member that divides the inside and outside of the passenger compartment, a crashable zone that is formed outside the passenger compartment of the panel member and absorbs collision energy applied from the end of the vehicle body at the time of a collision, and a battery that is installed on the vehicle body,
The vehicle body structure characterized in that the battery is disposed in the vicinity of the outside of the passenger compartment of the panel member that is out of the crushable zone. 前記パネル部材と前記クラッシャブルゾーンとの間には、非クラッシャブルゾーンを有し、
前記バッテリーは、前記非クラッシャブルゾーン内に収められることを特徴とする請求項１に記載の車体構造。 Between the panel member and the crushable zone, there is a non-crushable zone,
The vehicle body structure according to claim 1, wherein the battery is housed in the non-crushable zone. 前記バッテリーは、車体に取り付く車輪の軸心を延長した軸線付近に配置されていることを特徴とする請求項１又は請求項２に記載の車体構造。   3. The vehicle body structure according to claim 1, wherein the battery is disposed in the vicinity of an axis extending from an axis of a wheel attached to the vehicle body. 4. 前記バッテリーは、車幅方向へ延びるとともに車体の骨格部材をなすクロスメンバで支持されることを特徴とする請求項１ないし請求項３のいずれか１つに記載の車体構造。   The vehicle body structure according to any one of claims 1 to 3, wherein the battery is supported by a cross member that extends in a vehicle width direction and forms a skeleton member of the vehicle body.
JP2005060301A 2005-03-04 2005-03-04 Body structure Expired - Fee Related JP4293144B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007030811A (en) * 2005-07-29 2007-02-08 Fujitsu Ten Ltd Occupant protection device
JP2011189790A (en) * 2010-03-12 2011-09-29 Toyota Motor Corp Structure for mounting member onto vehicle body
WO2012023303A1 (en) * 2010-08-19 2012-02-23 トヨタ車体株式会社 Body structure of vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007030811A (en) * 2005-07-29 2007-02-08 Fujitsu Ten Ltd Occupant protection device
JP2011189790A (en) * 2010-03-12 2011-09-29 Toyota Motor Corp Structure for mounting member onto vehicle body
WO2012023303A1 (en) * 2010-08-19 2012-02-23 トヨタ車体株式会社 Body structure of vehicle
US8888167B2 (en) 2010-08-19 2014-11-18 Toyota Shatai Kabushiki Kaisha Body structure of vehicle

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