JP4286797B2 - Car body floor panel - Google Patents

Car body floor panel Download PDF

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Publication number
JP4286797B2
JP4286797B2 JP2005057085A JP2005057085A JP4286797B2 JP 4286797 B2 JP4286797 B2 JP 4286797B2 JP 2005057085 A JP2005057085 A JP 2005057085A JP 2005057085 A JP2005057085 A JP 2005057085A JP 4286797 B2 JP4286797 B2 JP 4286797B2
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floor panel
floor
reinforcing member
width direction
vehicle width
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JP2006240416A (en
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秀明 伊藤
泰之 芝田
義徳 田口
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2005057085A priority Critical patent/JP4286797B2/en
Priority to US11/364,161 priority patent/US7380874B2/en
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Description

本発明は、車体のフロアパネルに関するものである。   The present invention relates to a vehicle floor panel.

車幅方向中央部にて前後方向に延在するフロアトンネルを設けると共に、前部座席の下方にてフロアトンネルと交差して車幅方向に延在する膨出部を設け、フロアトンネルと膨出部とで十文字をなす凸部を形成した車体フロアパネルを本出願人は既に提案している(特許文献1を参照されたい)。   A floor tunnel extending in the front-rear direction is provided at the center in the vehicle width direction, and a bulging portion extending in the vehicle width direction is provided below the front seat and extends in the vehicle width direction. The present applicant has already proposed a vehicle body floor panel in which a convex part that forms a cross with the part is formed (see Patent Document 1).

このフロアパネルの構成は、一枚の鋼板に十文字の凸部をプレス成形することによってフロアパネルの剛性を確保しようというものであるが、膨出部の下方を燃料タンクの設置部として利用しようとする場合は、重量のある燃料タンクの支持剛性を確保するための補強が必要があった。
特開2002−302071号
The configuration of this floor panel is to secure the rigidity of the floor panel by pressing a cross-shaped convex part on a single steel plate, but the lower part of the bulging part is to be used as a fuel tank installation part. In this case, it is necessary to reinforce to secure the supporting rigidity of the heavy fuel tank.
JP 2002-302071 A

このようなフロアパネルの補強は、燃料タンクの容量および乗員の居住空間(足下のスペース)を犠牲にせずに実施できることが望ましい。   It is desirable that the reinforcement of the floor panel can be performed without sacrificing the capacity of the fuel tank and the occupant's living space (foot space).

本発明は、このような要望を満たすために案出されたものであり、その主な目的は、燃料タンクの容量および乗員の居住空間に影響を及ぼさずに燃料タンク設置部回りの剛性を高めることができるように構成された車体フロアパネルを提供することにある。   The present invention has been devised to satisfy such a demand, and its main purpose is to increase the rigidity around the fuel tank installation part without affecting the capacity of the fuel tank and the occupant's living space. An object of the present invention is to provide a vehicle body floor panel configured to be able to perform such a process.

このような目的を果たすために本発明による車体のフロアパネルは、車幅方向中央部にて車体の前後方向に延在するフロアトンネル2と、該フロアトンネルと交差して車幅方向に延在する膨出部3とで略十文字をなす凸部が形成されると共に、前記膨出部の下方を燃料タンク10の配置部とした車体のフロアパネル1において、膨出部におけるフロアトンネルで分断された左右の各前壁3fwとの間に車幅方向に延在する閉断面部を形成する左右一対の第1補強部材7と、前記フロアトンネルの内側を車幅方向に沿って仕切る第2補強部材8を有することを特徴とするものとした。さらに、好ましくは、前記第1補強部材の左側部分7l及び右側部分7rが前記フロアトンネルと重なる中間部分7cで連結され、前記第2補強部材が、当該フロアパネルにおける前記第1補強部材の接合部の下面に重ね合わせて接合される延伸部8l・8rを有することを特徴とするものとした。 In order to achieve such an object, the floor panel of the vehicle body according to the present invention includes a floor tunnel 2 extending in the front-rear direction of the vehicle body at the center in the vehicle width direction, and extending in the vehicle width direction intersecting the floor tunnel. In the floor panel 1 of the vehicle body in which the bulging portion 3 that forms a substantially cross-shaped projection is formed and the fuel tank 10 is disposed below the bulging portion, the bulging portion 3 is divided by a floor tunnel in the bulging portion. and a first reinforcing member 7 in pair to form a closed cross-section portion extending in the vehicle width direction between the left and right respective front wall 3FW, before Symbol second partitioning the interior of the floor tunnel along the vehicle width direction The reinforcing member 8 is provided. Further preferably, the left portion 7l and the right portion 7r of the first reinforcing member are connected by an intermediate portion 7c that overlaps the floor tunnel, and the second reinforcing member is a joint portion of the first reinforcing member in the floor panel. It has the extended part 8l * 8r overlapped and joined on the lower surface of this.

このような本発明による構成によれば、左右の膨出部の前壁に沿う閉断面部をフロントシート搭載部の下方に形成することができるので、燃料タンクの設置空間に影響を及ぼさないことはもとより、前席および後席に着座した乗員の足下を狭くせずに済む。またフロアトンネルの内側に接続された第2補強部材により、フロアトンネルが開くことが抑えられる。特に、第2補強部材の左右への延伸部がフロアパネルの上面に設けられた第1補強部材と部分的に重なるように設けられるので、フロアパネルを効率的に補強することができる。 According to the structure by the present invention, it is possible to form a closed cross-section portion along the front wall of the left and right bulging portions below the front seat mounting portion, it does not affect the installation space of the fuel tank Of course, it is not necessary to narrow the feet of passengers seated in the front and rear seats. Further the second reinforcing member connected inside the floor tunnel, Ru it is suppressed that opens the floor tunnel. Particularly, since the extended portion to the left and right of the second reinforcing member is provided so as to overlap the first reinforcing member partially provided on the upper surface of the floor panel, Ru can be reinforced floor panel efficiently.

以下に添付の図面を参照して本発明について詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

図1及び図2は、本発明に基づき構成されたフロアパネルを示している。このフロアパネル1は、図1における左手前側の端縁1Fにフロントダッシュボード(図示せず)が結合され、図1における右奥側の端縁1Rに荷室の床と一体をなすミッドクロスメンバ(図示せず)が結合され、右手前側および左奥側の側端縁1Sr・1Slにサイドシル(図示せず)が結合され、車室の前後方向中間部の床を塞ぐものである。   1 and 2 show a floor panel constructed according to the present invention. This floor panel 1 has a front dashboard (not shown) coupled to an edge 1F on the left front side in FIG. 1, and a mid-cross member integrated with the floor of the cargo compartment on an edge 1R on the right back side in FIG. (Not shown) are connected, and side sills (not shown) are connected to the side edge 1Sr and 1Sl on the right front side and the left back side to block the floor in the middle part in the front-rear direction of the passenger compartment.

フロアパネル1は、比較的薄い鋼板をプレス成形してなり、ビードや凹凸を形成することにより、鋼板を薄肉化したことによる平面部の剛性低下を補っている。   The floor panel 1 is formed by press-forming a relatively thin steel plate, and compensates for a reduction in the rigidity of the flat surface due to the thin steel plate by forming beads and irregularities.

フロアパネル1における車幅方向の中央部には、前後方向についての曲げ剛性を高めるために、断面形状が略台形をなし、室内側に突出したフロアトンネル2が前後方向に延設されている。そしてフロアトンネル2の前寄りの位置には、左右方向についての曲げ剛性を高めるために、フロアトンネル2と直交して車幅方向に延在する膨出部3が、室内側に突出して形成されている。なお、膨出部3には、その下方に配設される燃料タンクのメインテナンスのために、通常はボルト締めされたリッドLで塞がれるアクセス孔Hが開設されている。   In the center portion of the floor panel 1 in the vehicle width direction, in order to increase the bending rigidity in the front-rear direction, the cross-sectional shape is substantially trapezoidal, and a floor tunnel 2 that protrudes indoors extends in the front-rear direction. In addition, a bulging portion 3 extending in the vehicle width direction perpendicular to the floor tunnel 2 is formed at the front side of the floor tunnel 2 so as to protrude in the room in order to increase the bending rigidity in the left-right direction. ing. The bulging portion 3 is provided with an access hole H that is normally closed by a bolted lid L for maintenance of a fuel tank disposed below the bulging portion 3.

膨出部3は、図3に併せて示すように、フロントシート4側の床面の一部をなす前部水平部1fhから前壁3fwが立ち上げられ、前壁3fwの上端から後方へ延出された後に傾斜面3icでリアシート5側の床面をなす後部水平部1rhに接続されている。   As shown in FIG. 3, the bulging portion 3 has a front wall 3 fw that rises from a front horizontal portion 1 fh that forms part of the floor surface on the front seat 4 side, and extends rearward from the upper end of the front wall 3 fw. After being taken out, the inclined surface 3ic is connected to the rear horizontal portion 1rh forming the floor surface on the rear seat 5 side.

傾斜面3icの下面における後端側には、断面形状が溝形をなす後部補強部材6が、その前後縁のフランジをスポット溶接にて結合されている。これにより、車幅方向に延在する閉断面部が、傾斜面3icの後端側の下面に形成されている。   On the rear end side of the lower surface of the inclined surface 3ic, a rear reinforcing member 6 whose cross-sectional shape forms a groove shape is joined to the front and rear edge flanges by spot welding. Thereby, the closed cross-sectional part extended in the vehicle width direction is formed in the lower surface of the rear end side of the inclined surface 3ic.

フロアトンネル2で分断された膨出部3の左右各前壁3fwの前面(室内側の面)には、断面形状が階段状をなす左側部分7l及び右側部分7rと、これら左側部分7l及び右側部分7rをフロアトンネル2の上面(室内側の面)と重なる位置で連結する中間部分7cとからなる第1補強部材7が、フロアパネル1、膨出部3の左右各前壁3fw及び頂壁3tに重ねて要所をスポット溶接された上で、車幅方向に延設されている。この第1補強部材7は、その左右各端をフロアパネル1の側端縁1Sr・1Sl(サイドシルの結合部)に接続させており、これにより、膨出部3の左右各前壁3fwの前面と左側部分7l及び右側部分7rとの間に車幅方向に延在する閉断面部が形成されると同時に、中間部分7cを始めとした板の重なり合う部分によって厚肉化されている。このようにして、特に膨出部3の前壁3fwの剛性が高められることにより、膨出部3の頂壁3tに燃料タンクのメインテナンス用アクセス孔Hを開けたことによる膨出部3の剛性低下が好適に補強される。   On the front surfaces (interior surfaces) of the left and right front walls 3fw of the bulging portion 3 divided by the floor tunnel 2, a left side portion 7l and a right side portion 7r having a stepped cross section, and a left side portion 7l and a right side The first reinforcing member 7 including the intermediate portion 7c that connects the portion 7r at a position overlapping the upper surface (inner side surface) of the floor tunnel 2 is the floor panel 1, the left and right front walls 3fw and the top wall of the bulging portion 3. It is extended in the vehicle width direction after spot-welding the important points in 3t. The first reinforcing member 7 has its left and right ends connected to the side edges 1Sr and 1Sl (side sill joints) of the floor panel 1, whereby the front surface of the left and right front walls 3 fw of the bulging portion 3. A closed cross section extending in the vehicle width direction is formed between the left portion 7l and the right portion 7r, and at the same time, it is thickened by overlapping portions of the plate including the intermediate portion 7c. In this way, particularly the rigidity of the front wall 3 fw of the bulging portion 3 is enhanced, so that the rigidity of the bulging portion 3 due to the opening of the maintenance access hole H of the fuel tank in the top wall 3 t of the bulging portion 3 is increased. The drop is suitably reinforced.

フロアトンネル2で分断された左右の各前壁3fw同士間は、フロアトンネル2の内側を車幅方向に沿って仕切る第2補強部材8によって連結されている。この第2補強部材8には、フロアパネル1における第1補強部材7の接合部の下面に重なる左右への延伸部8l・8rが設けられており、第2補強部材8、フロアパネル1、及び第1補強部材7の互いに重なり合う部分がスポット溶接で結合されている(図5中の×印がスポット溶接の打点を示す)。この第2補強部材8を結合することにより、フロアトンネル2が開くことが抑えられ、特に、左右への延伸部8l・8rが重なり合う部分によって厚肉化され、左右のサイドシル間が強固に連結されてフロアパネル1の剛性を高効率に増強される。特に、フロアトンネル2自体の剛性を増強し得るので、フロアトンネル2に対するシフトレバー支持ベース13の結合剛性も高まり、シフトフィーリングの向上にも貢献し得る。   The left and right front walls 3fw divided by the floor tunnel 2 are connected by a second reinforcing member 8 that partitions the inside of the floor tunnel 2 along the vehicle width direction. The second reinforcing member 8 is provided with left and right extending portions 8l and 8r that overlap the lower surface of the joint portion of the first reinforcing member 7 in the floor panel 1, and the second reinforcing member 8, the floor panel 1, and The overlapping portions of the first reinforcing member 7 are joined by spot welding (the x mark in FIG. 5 indicates the spot welding spot). By connecting the second reinforcing member 8, the floor tunnel 2 can be prevented from opening, and in particular, it is thickened by the overlapping portions of the left and right extending portions 8l and 8r, and the left and right side sills are firmly connected. Thus, the rigidity of the floor panel 1 is enhanced with high efficiency. In particular, since the rigidity of the floor tunnel 2 itself can be increased, the coupling rigidity of the shift lever support base 13 to the floor tunnel 2 can be increased, which can contribute to the improvement of the shift feeling.

膨出部3によってフロアパネル1の下面に画成された下向きに凹となる空間は、燃料タンク10の設置場所として利用される。そしてフロアパネル1の下面における燃料タンク10の左右両側部には、前後方向に沿って側部補強部材11l・11rが延設されており、フロアパネル1の下面における燃料タンク10の後方に車幅方向に延設された後部補強部材6と、フロアトンネル2内に車幅方向に延設された第2補強部材8と、フロアパネル1の上面におけるフロントシート4の下方に車幅方向に延設された第1補強部材7とが、燃料タンク10の周囲を取り囲むように配置されている。   A downwardly recessed space defined on the lower surface of the floor panel 1 by the bulging portion 3 is used as an installation location of the fuel tank 10. Side reinforcement members 11l and 11r are extended along the front-rear direction on the left and right sides of the fuel tank 10 on the lower surface of the floor panel 1, and the vehicle width is located behind the fuel tank 10 on the lower surface of the floor panel 1. A rear reinforcing member 6 extending in the direction, a second reinforcing member 8 extending in the vehicle width direction in the floor tunnel 2, and extending in the vehicle width direction below the front seat 4 on the upper surface of the floor panel 1. The first reinforcing member 7 is disposed so as to surround the fuel tank 10.

これらにより、燃料タンク10の搭載部は勿論のこと、フロントシート4の搭載部の剛性を、燃料タンク10の設置空間に影響を及ぼさないことはもとより、前席および後席に着座した乗員の足下を狭くすることなく十分に高めることができるので、前面衝突時におけるフロントシート4の位置の変化が抑制され、シートベルト及びエアバッグの効果を乗員が最大に受けられるようになる。即ち、本発明によれば、乗員損害値の低減を企図する上にも効果的である。   As a result, the rigidity of the mounting portion of the front seat 4 as well as the mounting portion of the fuel tank 10 does not affect the installation space of the fuel tank 10, and the feet of passengers seated in the front seat and the rear seat Therefore, the change in the position of the front seat 4 at the time of a frontal collision is suppressed, and the occupant can receive the maximum effect of the seat belt and the airbag. That is, according to the present invention, it is also effective in attempting to reduce the passenger damage value.

本発明によるフロアパネルの上面の全体斜視図である。It is a whole perspective view of the upper surface of the floor panel by this invention. 本発明によるフロアパネルの下面の全体斜視図である。It is a whole perspective view of the lower surface of the floor panel by this invention. フロアパネルを左座席の搭載部で車体前後方向に沿って切断した概略側断面図である。It is the schematic sectional side view which cut | disconnected the floor panel along the vehicle body front-back direction in the mounting part of the left seat. フロアパネルを車体前後方向中心線に沿って切断した概略側断面図である。It is a schematic sectional side view which cut | disconnected the floor panel along the vehicle body front-back direction centerline. フロアトンネルのシフトレバー支持ベースの結合部を示す要部斜視図である。It is a principal part perspective view which shows the coupling | bond part of the shift lever support base of a floor tunnel.

符号の説明Explanation of symbols

1 フロアパネル
2 フロアトンネル
3 膨出部
7 第1補強部材
7l 左側部分
7r 右側部分
7c 中間部分
8 第2補強部材
8l・8r 延伸部
10 燃料タンク
DESCRIPTION OF SYMBOLS 1 Floor panel 2 Floor tunnel 3 Swelling part 7 1st reinforcement member 7l Left side part 7r Right side part 7c Middle part 8 2nd reinforcement member 8l * 8r Extension part 10 Fuel tank

Claims (2)

車幅方向中央部にて車体の前後方向に延在するフロアトンネルと、該フロアトンネルと交差して車幅方向に延在する膨出部とで略十文字をなす凸部が形成されると共に、前記膨出部の下方を燃料タンクの配置部とした車体のフロアパネルであって、
前記膨出部における前記フロアトンネルで分断された左右の各前壁との間に車幅方向に延在する閉断面部を形成する左右一対の第1補強部材と、
前記フロアトンネルの内側を車幅方向に沿って仕切る第2補強部材と、
を有することを特徴とする車体のフロアパネル。
A convex portion is formed which is formed by a floor tunnel extending in the front-rear direction of the vehicle body at the center in the vehicle width direction and a bulging portion that intersects the floor tunnel and extends in the vehicle width direction. A floor panel of a vehicle body in which a lower portion of the bulging portion is a fuel tank arrangement portion,
A pair of left and right first reinforcing members forming a closed cross section extending in the vehicle width direction between the left and right front walls divided by the floor tunnel in the bulge portion ;
A second reinforcing member that partitions the inside of the floor tunnel along the vehicle width direction;
A floor panel of a vehicle body characterized by comprising:
前記第1補強部材の左側部分及び右側部分が前記フロアトンネルと重なる中間部分で連結され、
前記第2補強部材が当該フロアパネルにおける前記第1補強部材の接合部の下面に重ね合わせて接合される延伸部を有することを特徴とする請求項1に記載の車体のフロアパネル。
The left part and the right part of the first reinforcing member are connected by an intermediate part overlapping the floor tunnel,
2. The vehicle floor panel according to claim 1 , wherein the second reinforcing member has an extending portion that is overlapped and joined to a lower surface of the joint portion of the first reinforcing member in the floor panel.
JP2005057085A 2005-03-02 2005-03-02 Car body floor panel Expired - Fee Related JP4286797B2 (en)

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Application Number Priority Date Filing Date Title
JP2005057085A JP4286797B2 (en) 2005-03-02 2005-03-02 Car body floor panel
US11/364,161 US7380874B2 (en) 2005-03-02 2006-02-28 Automotive floor panel assembly

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JP2005057085A JP4286797B2 (en) 2005-03-02 2005-03-02 Car body floor panel

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JP2006240416A JP2006240416A (en) 2006-09-14
JP4286797B2 true JP4286797B2 (en) 2009-07-01

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Publication number Priority date Publication date Assignee Title
JP5082794B2 (en) * 2007-11-19 2012-11-28 マツダ株式会社 Vehicle tank arrangement structure

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