JP2010030546A - Vehicular floor structure - Google Patents

Vehicular floor structure Download PDF

Info

Publication number
JP2010030546A
JP2010030546A JP2008197353A JP2008197353A JP2010030546A JP 2010030546 A JP2010030546 A JP 2010030546A JP 2008197353 A JP2008197353 A JP 2008197353A JP 2008197353 A JP2008197353 A JP 2008197353A JP 2010030546 A JP2010030546 A JP 2010030546A
Authority
JP
Japan
Prior art keywords
floor
vehicle
ridge line
side ridge
cross member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2008197353A
Other languages
Japanese (ja)
Other versions
JP5115386B2 (en
Inventor
Yoshiteru Tanaka
義輝 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP2008197353A priority Critical patent/JP5115386B2/en
Publication of JP2010030546A publication Critical patent/JP2010030546A/en
Application granted granted Critical
Publication of JP5115386B2 publication Critical patent/JP5115386B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Body Structure For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular floor structure capable of suppressing deformation of a center floor member and a center floor cross member. <P>SOLUTION: A cross member 20 includes a center floor panel 22 and a center floor cross member 24, and a closed section is constituted of a floor upper surface part 26 and a longitudinal wall part 28 of the center floor panel 22, and a stepped part 38 and an upper side longitudinal wall part 36 of the center floor cross member 24. A floor side ridge line part 27 is formed on the floor upper surface part 26 of the center floor panel 22 along the longitudinal direction of the vehicle, and a floor cross member side ridge part 39 is formed on the stepped part 38 of the center floor cross member 24 along the longitudinal direction of the vehicle. The floor side ridge part 27 is arranged at the position offset to the outer side in the vehicle width direction from the floor cross member side ridge part 39. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、車両幅方向に沿って延在するセンターフロア部材と、このセンターフロア部材の車両下方側に接合されたセンターフロアクロスメンバとを備えた車両用フロア構造に関する。   The present invention relates to a vehicle floor structure including a center floor member extending along a vehicle width direction and a center floor cross member joined to a vehicle lower side of the center floor member.

下記特許文献１には、リアフロアパネルとクロスメンバによって車両幅方向に延在する閉断面形状を形成した車体フロア構造が開示されている。
特開２０００−１０８９４７号公報 Patent Document 1 below discloses a vehicle body floor structure in which a closed cross-sectional shape extending in the vehicle width direction is formed by a rear floor panel and a cross member.
JP 2000-108947 A

しかしながら、上記先行技術による場合、リアフロアパネルの車両幅方向両端部の稜線と、クロスメンバの車両幅方向両端部の稜線については言及されておらず、例えば両者の稜線が車両幅方向に一致する位置に配置された場合には、悪路走行時のサスペンションの入力等により、稜線を起点としてリアフロアパネル及びクロスメンバが変形する可能性がある。一方、車体フロアの強度を確保するために、例えば、リアフロアパネルのクロスメンバと閉断面を形成する部分のみを分割して板厚を上げると、部品点数の増加や重量の増加につながる。   However, in the case of the above prior art, the ridge lines at both ends in the vehicle width direction of the rear floor panel and the ridge lines at both ends in the vehicle width direction of the cross member are not mentioned, for example, the positions where both ridge lines coincide with the vehicle width direction. The rear floor panel and the cross member may be deformed from the ridgeline as a starting point due to the suspension input when traveling on a rough road. On the other hand, in order to ensure the strength of the vehicle body floor, for example, if only the portion of the rear floor panel that forms the closed cross section with the cross member is divided and the plate thickness is increased, this leads to an increase in the number of parts and an increase in weight.

本発明は上記事実を考慮し、センターフロア部材及びセンターフロアクロスメンバの変形を抑制することができる車両用フロア構造を得ることが目的である。   In view of the above facts, an object of the present invention is to provide a vehicle floor structure that can suppress deformation of a center floor member and a center floor cross member.

請求項１の発明に係る車両用フロア構造は、車両幅方向に沿って延在すると共に、車両前方側にフロア上面部から車両下方側に延設された縦壁部を備えたセンターフロア部材と、前記センターフロア部材の車両下方側に配置されると共に、車両上下方向に沿って配置された壁部の中間部に車両幅方向に沿って車両前方側に突出するように形成された段差部を備え、前記段差部の前端部に前記縦壁部の下端部が接合され、かつ、前記壁部の上端部に前記フロア上面部が接合されて前記センターフロア部材との閉断面が構成されるセンターフロアクロスメンバと、前記センターフロア部材の車両幅方向両端部に設けられ、前記閉断面を構成する前記フロア上面部又は前記縦壁部に形成されたフロア側稜線部と、前記センターフロアクロスメンバの車両幅方向両端部に設けられ、前記閉断面において前記フロア上面部又は前記縦壁部と対向する前記段差部又は前記壁部に形成されると共に、前記フロア側稜線部と車両幅方向にオフセットした位置に配置されたフロアクロスメンバ側稜線部と、を有することを特徴とする。   A vehicle floor structure according to the invention of claim 1 extends along the vehicle width direction, and has a center floor member provided with a vertical wall portion extending from the floor upper surface portion to the vehicle lower side on the vehicle front side. A step portion formed on the vehicle lower side of the center floor member and formed to project toward the vehicle front side along the vehicle width direction at an intermediate portion of the wall portion arranged along the vehicle vertical direction. A center having a closed cross section with the center floor member by joining the lower end of the vertical wall to the front end of the step and joining the upper surface of the floor to the upper end of the wall. A floor cross member, a floor side ridge line portion formed on the floor upper surface portion or the vertical wall portion which is provided at both ends of the center floor member in the vehicle width direction and forms the closed cross section, and the center floor cross member Provided at both ends in both width directions, formed in the stepped portion or the wall portion facing the floor upper surface portion or the vertical wall portion in the closed section, and offset in the vehicle width direction from the floor side ridge line portion And a floor cross member side ridge line portion arranged at a position.

請求項２の発明は、請求項１に記載の車両用フロア構造において、前記フロア側稜線部が前記閉断面を構成する前記フロア上面部に車両前後方向に沿って形成されると共に、前記フロアクロスメンバ側稜線部が前記閉断面を構成する前記段差部に車両前後方向に沿って形成されており、車両正面視にて前記フロア側稜線部と前記フロアクロスメンバ側稜線部とが車両幅方向にオフセットして配置されていることを特徴とする。   According to a second aspect of the present invention, in the vehicle floor structure according to the first aspect, the floor side ridge line portion is formed along the vehicle front-rear direction on the floor upper surface portion constituting the closed cross section, and the floor cross A member side ridge line portion is formed along the vehicle front-rear direction in the stepped portion constituting the closed cross section, and the floor side ridge line portion and the floor cross member side ridge line portion are arranged in the vehicle width direction when the vehicle is viewed from the front. It is characterized by being offset.

請求項３の発明は、請求項１に記載の車両用フロア構造において、前記フロア側稜線部が前記閉断面を構成する前記縦壁部に車両上下方向に沿って形成されると共に、前記フロアクロスメンバ側稜線部が前記閉断面を構成する前記壁部に車両上下方向に沿って形成されており、車両平面視にて前記フロア側稜線部と前記フロアクロスメンバ側稜線部とが車両幅方向にオフセットして配置されていることを特徴とする。   According to a third aspect of the present invention, in the vehicle floor structure according to the first aspect, the floor side ridge line portion is formed on the vertical wall portion constituting the closed cross section along the vehicle vertical direction, and the floor cloth is formed. A member side ridge line portion is formed in the vehicle vertical direction on the wall portion constituting the closed cross section, and the floor side ridge line portion and the floor cross member side ridge line portion are arranged in the vehicle width direction in a vehicle plan view. It is characterized by being offset.

請求項４の発明は、請求項１に記載の車両用フロア構造において、前記フロア側稜線部が、前記閉断面を構成する前記フロア上面部に車両前後方向に沿って形成されたフロア上面部側稜線部と、前記閉断面を構成する前記縦壁部に車両上下方向に沿って形成されたフロア縦壁部側稜線部と、を備えると共に、前記フロアクロスメンバ側稜線部が、前記閉断面を構成する前記段差部に車両前後方向に沿って形成された段差部側稜線部と、前記閉断面を構成する前記壁部に車両上下方向に沿って形成された壁部側稜線部と、を備え、車両正面視にて前記フロア上面部側稜線部と前記段差部側稜線部とが車両幅方向にオフセットして配置されると共に、車両平面視にて前記フロア縦壁部側稜線部と前記壁部側稜線部とが車両幅方向にオフセットして配置されていることを特徴とする。   According to a fourth aspect of the present invention, in the vehicle floor structure according to the first aspect, the floor side ridge line portion is formed on the floor upper surface portion constituting the closed section along the vehicle front-rear direction. A ridge line portion and a floor vertical wall side ridge line portion formed along the vehicle vertical direction on the vertical wall portion constituting the closed cross section, and the floor cross member side ridge line portion includes the closed cross section. The stepped portion side ridge line portion formed along the vehicle longitudinal direction on the stepped portion configured, and the wall portion side ridgeline portion formed along the vehicle vertical direction on the wall portion configuring the closed cross section. The floor upper surface side ridge line portion and the stepped portion side ridge line portion are arranged offset in the vehicle width direction in the vehicle front view, and the floor vertical wall portion side ridge line portion and the wall in the vehicle plan view. The side ridge line part is offset in the vehicle width direction Characterized in that it is location.

請求項１記載の本発明によれば、車両幅方向に沿って延在するセンターフロア部材の車両下方側にセンターフロアクロスメンバが配置されている。センターフロアクロスメンバには、車両上下方向に沿って配置された壁部の中間部に車両前方側に突出する段差部が車両幅方向に沿って形成されており、段差部の前端部にセンターフロア部材のフロア上面部から延設された縦壁部の下端部が接合され、かつ、センターフロアクロスメンバの壁部の上端部にセンターフロア部材のフロア上面部が接合されることで、センターフロア部材とセンターフロアクロスメンバとで閉断面が構成されている。センターフロア部材の車両幅方向両端部には、閉断面を構成するフロア上面部又は縦壁部にフロア側稜線部が形成されており、センターフロアクロスメンバの車両幅方向両端部におけるフロア側稜線部と車両幅方向にオフセットした位置には、閉断面においてフロア上面部又は縦壁部と対向する段差部又は壁部にフロアクロスメンバ側稜線部が形成されている。すなわち、センターフロア部材の車両幅方向両端部に形成されたフロア側稜線部と、センターフロアクロスメンバの車両幅方向両端部に形成されたフロアクロスメンバ側稜線部とが、車両幅方向にオフセットして配置されている。これによって、悪路走行時のサスペンションの入力等により、フロア側稜線部及びフロアクロスメンバ側稜線部を起点としてセンターフロア部材及びセンターフロアクロスメンバが変形することが抑制される。このため、例えば、車両正面視又は車両平面視においてフロア側稜線部及びフロアクロスメンバ側稜線部が車両幅方向に一致する位置に設けられた場合と比べて、センターフロア部材及びセンターフロアクロスメンバが変形することを抑制することができる。さらに、センターフロア部材等を分割して板厚を厚くする必要がなく、部品点数の増加、及び重量の増加を防止することができる。   According to the first aspect of the present invention, the center floor cross member is disposed on the vehicle lower side of the center floor member extending along the vehicle width direction. In the center floor cross member, a stepped portion is formed along the vehicle width direction at the middle portion of the wall portion arranged along the vehicle vertical direction along the vehicle width direction, and the center floor is formed at the front end of the stepped portion. The center floor member is joined by joining the lower end portion of the vertical wall portion extended from the floor upper surface portion of the member and joining the floor upper surface portion of the center floor member to the upper end portion of the wall portion of the center floor cross member. And the center floor cross member constitute a closed section. At both ends in the vehicle width direction of the center floor member, floor side ridge lines are formed on the floor upper surface portion or vertical wall portion constituting the closed cross section, and the floor side ridge lines at the vehicle width direction both ends of the center floor cross member At the position offset in the vehicle width direction, a floor cross member side ridge line portion is formed on the stepped portion or the wall portion facing the floor upper surface portion or the vertical wall portion in the closed cross section. In other words, the floor side ridge line portions formed at both ends in the vehicle width direction of the center floor member and the floor cross member side ridge line portions formed at both ends in the vehicle width direction of the center floor cross member are offset in the vehicle width direction. Are arranged. Accordingly, the center floor member and the center floor cross member are suppressed from being deformed from the floor side ridge line portion and the floor cross member side ridge line portion as a starting point due to suspension input or the like when traveling on a rough road. For this reason, for example, the center floor member and the center floor cross member are compared with the case where the floor side ridge line part and the floor cross member side ridge line part are provided at positions that coincide with the vehicle width direction in the vehicle front view or the vehicle plan view. Deformation can be suppressed. Further, it is not necessary to divide the center floor member or the like to increase the plate thickness, and it is possible to prevent an increase in the number of parts and an increase in weight.

請求項２記載の本発明によれば、フロア側稜線部が閉断面を構成するフロア上面部に車両前後方向に沿って形成されると共に、フロアクロスメンバ側稜線部が閉断面を構成する段差部に車両前後方向に沿って形成されており、車両正面視にてフロア側稜線部とフロアクロスメンバ側稜線部とが車両幅方向にオフセットして配置されている。これによって、悪路走行時のサスペンションの入力等により、フロア側稜線部及びフロアクロスメンバ側稜線部を起点としてセンターフロア部材及びセンターフロアクロスメンバが変形することをより一層抑制することができる。   According to the second aspect of the present invention, the floor side ridge line portion is formed on the floor upper surface portion constituting the closed cross section along the vehicle front-rear direction, and the floor cross member side ridge line portion forms the closed cross section. The floor side ridge line part and the floor cross member side ridge line part are arranged offset in the vehicle width direction when viewed from the front of the vehicle. Thereby, it is possible to further suppress the deformation of the center floor member and the center floor cross member starting from the floor side ridge line part and the floor cross member side ridge line part due to the input of the suspension when traveling on a rough road.

請求項３記載の本発明によれば、フロア側稜線部が閉断面を構成する縦壁部に車両上下方向に沿って形成されると共に、フロアクロスメンバ側稜線部が閉断面を構成する壁部に車両上下方向に沿って形成されており、車両平面視にてフロア側稜線部とフロアクロスメンバ側稜線部とが車両幅方向にオフセットして配置されている。これによって、悪路走行時のサスペンションの入力等により、フロア側稜線部及びフロアクロスメンバ側稜線部を起点としてセンターフロア部材及びセンターフロアクロスメンバが変形することをより一層抑制することができる。   According to the third aspect of the present invention, the floor side ridge line portion is formed in the vertical wall portion constituting the closed section along the vehicle vertical direction, and the floor cross member side ridge line portion constitutes the closed section. The floor side ridge line part and the floor cross member side ridge line part are arranged offset in the vehicle width direction in a vehicle plan view. Thereby, it is possible to further suppress the deformation of the center floor member and the center floor cross member starting from the floor side ridge line part and the floor cross member side ridge line part due to the input of the suspension when traveling on a rough road.

請求項４記載の本発明によれば、フロア上面部側稜線部が閉断面を構成するフロア上面部に車両前後方向に沿って形成されると共に、段差部側稜線部が閉断面を構成する段差部に車両前後方向に沿って形成されており、車両正面視にてフロア上面部側稜線部と段差部側稜線部とが車両幅方向にオフセットして配置されている。フロア縦壁部側稜線部が閉断面を構成する縦壁部に車両上下方向に沿って形成されると共に、壁部側稜線部が閉断面を構成する壁部に車両上下方向に沿って形成されており、車両平面視にてフロア縦壁部側稜線部と壁部側稜線部とが車両幅方向にオフセットして配置されている。これによって、悪路走行時のサスペンションの入力等により、フロア上面部側稜線部及び段差部側稜線部、フロア縦壁部側稜線部及び壁部側稜線部を起点としてセンターフロア部材及びセンターフロアクロスメンバが変形することを更に確実に抑制することができる。   According to the fourth aspect of the present invention, the floor upper surface portion side ridge line portion is formed on the floor upper surface portion constituting the closed cross section along the vehicle front-rear direction, and the step portion side ridge line portion forms the closed cross section. The floor top surface side ridge line portion and the stepped portion side ridge line portion are arranged offset in the vehicle width direction when viewed from the front of the vehicle. The floor vertical wall portion side ridge line portion is formed along the vehicle vertical direction on the vertical wall portion constituting the closed cross section, and the wall portion side ridge line portion is formed along the vehicle vertical direction on the wall portion constituting the closed cross section. The floor vertical wall portion side ridge line portion and the wall portion side ridge line portion are arranged offset in the vehicle width direction in the vehicle plan view. As a result, the center floor member and the center floor cross start from the floor top surface side ridge line part, the step part side ridge line part, the floor vertical wall part side ridge line part, and the wall part side ridge line part by the input of the suspension at the time of rough road traveling, etc. It is possible to further reliably suppress the deformation of the member.

以上説明したように、請求項１記載の本発明に係る車両用フロア構造は、悪路走行時のサスペンションの入力等により、センターフロア部材及びセンターフロアクロスメンバの変形を抑制することができるという優れた効果を有する。   As described above, the vehicle floor structure according to the first aspect of the present invention is excellent in that the deformation of the center floor member and the center floor cross member can be suppressed by the input of the suspension when traveling on a rough road. It has the effect.

請求項２記載の本発明に係る車両用フロア構造は、センターフロア部材及びセンターフロアクロスメンバの変形をより効果的に抑制することができるという優れた効果を有する。   The vehicle floor structure according to the second aspect of the present invention has an excellent effect that deformation of the center floor member and the center floor cross member can be more effectively suppressed.

請求項３記載の本発明に係る車両用フロア構造は、センターフロア部材及びセンターフロアクロスメンバの変形をより効果的に抑制することができるという優れた効果を有する。   The vehicle floor structure according to the third aspect of the present invention has an excellent effect that deformation of the center floor member and the center floor cross member can be more effectively suppressed.

請求項４記載の本発明に係る車両用フロア構造は、センターフロア部材及びセンターフロアクロスメンバの変形を更に確実に抑制することができるという優れた効果を有する。   The vehicle floor structure according to the fourth aspect of the present invention has an excellent effect that the deformation of the center floor member and the center floor cross member can be more reliably suppressed.

〔第１実施形態〕   [First Embodiment]

以下、図１〜図８を用いて、本発明に係る車両用フロア構造の第１実施形態について説明する。なお、これらの図において適宜示される矢印ＦＲは車両前方側を示しており、矢印ＵＰは車両上方側を示しており、矢印ＯＵＴは車両幅方向外側を示している。   Hereinafter, a first embodiment of a vehicle floor structure according to the present invention will be described with reference to FIGS. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow OUT indicates the vehicle width direction outer side.

図１には、本発明の車両用フロア構造が適用された車両の斜視図が示されている。この図に示されるように、車両１０のボデー本体１１の下部には、車両幅方向及び車両前後方向に沿って車両用フロア１２が配設されている。また、ボデー本体１１の上部には車両幅方向及び車両前後方向に沿ってルーフパネル１４が配設されており、ボデー本体１１の両側部には、図示しないフロントサイドドア及びリアサイドドアが取り付けられるドア開口部１６が形成されている。   FIG. 1 is a perspective view of a vehicle to which the vehicle floor structure of the present invention is applied. As shown in this figure, a vehicle floor 12 is disposed in the lower portion of the body 11 of the vehicle 10 along the vehicle width direction and the vehicle front-rear direction. Further, a roof panel 14 is disposed in the upper portion of the body main body 11 along the vehicle width direction and the vehicle front-rear direction, and doors to which front side doors and rear side doors (not shown) are attached are attached to both sides of the body main body 11. An opening 16 is formed.

車両用フロア１２の車両幅方向中央部には、車両前後方向に沿ってトンネルリインフォース１８が設けられている。車両用フロア１２の車両後方側には、車両幅方向に沿って延在するクロスメンバ２０が配設されている。クロスメンバ２０は、車両用フロア１２の一般面１２Ａ及びトンネルリインフォース１８の車両上方側に突出するように配設されている。クロスメンバ２０は、図示しないリアシートの下部に配設されている。   A tunnel reinforcement 18 is provided in the vehicle width direction center of the vehicle floor 12 along the vehicle front-rear direction. A cross member 20 extending along the vehicle width direction is disposed on the vehicle rear side of the vehicle floor 12. The cross member 20 is disposed so as to protrude from the general surface 12A of the vehicle floor 12 and the upper side of the tunnel reinforcement 18 in the vehicle. The cross member 20 is disposed at a lower portion of a rear seat (not shown).

図２には、本発明の車両用フロア構造の斜視図が示されている。この図に示されるように、クロスメンバ２０は、車両上方側に配置されたセンターフロアパネル２２と、このセンターフロアパネル２２の車両下方側に配置されたセンターフロアクロスメンバ２４と、を備えている。図３に示されるように、センターフロアパネル２２は、車両幅方向及び車両前後方向に沿って形成されたフロア上面部２６と、フロア上面部２６の車両前端部から車両下方側に延設された縦壁部２８と、を備えている。フロア上面部２６の車両幅方向中間部には、車両幅方向に沿って略水平な平面部２６Ａが形成されている。フロア上面部２６の平面部２６Ａの車両幅方向両端部には、車両前後方向に沿ってフロア側稜線部（折れ線）２７が形成されており、フロア側稜線部２７の車両幅方向両側は、車両幅方向両端部に行くに従って下り勾配となる傾斜面２６Ｂとなっている。   FIG. 2 is a perspective view of the vehicle floor structure of the present invention. As shown in this figure, the cross member 20 includes a center floor panel 22 disposed on the vehicle upper side and a center floor cross member 24 disposed on the vehicle lower side of the center floor panel 22. . As shown in FIG. 3, the center floor panel 22 is extended to the vehicle lower side from the floor upper surface portion 26 formed along the vehicle width direction and the vehicle front-rear direction, and the vehicle front end portion of the floor upper surface portion 26. And a vertical wall portion 28. A substantially horizontal plane portion 26A is formed in the vehicle width direction intermediate portion of the floor upper surface portion 26 along the vehicle width direction. Floor side ridge line portions (folded lines) 27 are formed along the vehicle front-rear direction at both ends in the vehicle width direction of the flat surface portion 26A of the floor upper surface portion 26, and both sides of the floor side ridge line portion 27 in the vehicle width direction are It becomes the inclined surface 26B which becomes a downward slope as it goes to the width direction both ends.

傾斜面２６Ｂの車両幅方向両端部には、ボデー本体１１の車両幅方向両端部の下部に形成されたロッカインナリア（図示省略）に接合される接合部２６Ｃが形成されている。なお、図示を省略するが、接合部２６Ｃの上部には、図示しないリアシートを取り付けるためのかさ上げブラケットが設けられている。センターフロアパネル２２とセンターフロアクロスメンバ２４とを組み合わせてクロスメンバ２０を形成した構成では、クロスメンバ２０の車両幅方向中央部はリアシート（図示省略）の着座姿勢から決定され、また、クロスメンバ２０の車両幅方向端部はリアサイドドアの形状により決定されるロッカーインナリアの高さから決定されるため、センターフロアパネル２２のフロア上面部２６にはフロア側稜線部２７が形成された構成となっている。   At both ends in the vehicle width direction of the inclined surface 26B, joint portions 26C to be joined to rocker inners (not shown) formed at the lower portions of both ends in the vehicle width direction of the body main body 11 are formed. In addition, although illustration is abbreviate | omitted, the raising bracket for attaching the rear sheet | seat which is not shown in figure is provided in the upper part of the junction part 26C. In the configuration in which the center floor panel 22 and the center floor cross member 24 are combined to form the cross member 20, the center of the cross member 20 in the vehicle width direction is determined from the seating posture of the rear seat (not shown), and the cross member 20. Since the end in the vehicle width direction is determined from the height of the rocker inner rear determined by the shape of the rear side door, a floor side ridge line portion 27 is formed on the floor upper surface portion 26 of the center floor panel 22. ing.

センターフロアパネル２２の縦壁部２８は、傾斜面２６Ｂと対応する車両幅方向両端部が車両下方側に延設されている。縦壁部２８の下端部には、車両前方側に折り曲げられてセンターフロアクロスメンバ２４に接合される取付部３０が形成されている。センターフロアパネル２２の平面部２６Ａには、車両前後方向に沿って複数のビード３２が形成されている。   As for the vertical wall part 28 of the center floor panel 22, the both ends of the vehicle width direction corresponding to the inclined surface 26B are extended to the vehicle lower side. An attachment portion 30 is formed at the lower end portion of the vertical wall portion 28 and bent to the vehicle front side and joined to the center floor cross member 24. A plurality of beads 32 are formed in the plane portion 26 </ b> A of the center floor panel 22 along the vehicle longitudinal direction.

図４に示されるように、センターフロアクロスメンバ２４は、車両上下方向に配置された壁部としての上部側縦壁部３６と、上部側縦壁部３６の下端部から車両前方側に突出するように形成された段差部３８と、段差部３８の前端部から車両下方側に配置された壁部としての下部側縦壁部４０と、を備えている。上部側縦壁部３６の上端部には、車両後方側に折り曲げられてフロア上面部２６の下面に接合される取付部４２が形成されている（図５参照）。取付部４２は、フロア上面部２６の形状に合わせて車両幅方向中間部の両側が車両幅方向両端部に行くに従って下り勾配となるように形成されている。   As shown in FIG. 4, the center floor cross member 24 protrudes from the upper side vertical wall portion 36 as a wall portion arranged in the vehicle vertical direction and the lower end portion of the upper side vertical wall portion 36 to the vehicle front side. And a lower-side vertical wall portion 40 as a wall portion disposed on the vehicle lower side from the front end portion of the step portion 38. At the upper end portion of the upper side vertical wall portion 36, an attachment portion 42 that is bent toward the vehicle rear side and joined to the lower surface of the floor upper surface portion 26 is formed (see FIG. 5). The attachment portion 42 is formed so that the both sides of the intermediate portion in the vehicle width direction have a downward slope according to the shape of the floor upper surface portion 26 as it goes to both ends in the vehicle width direction.

段差部３８は、車両幅方向に沿って設けられており、車両幅方向中間部に略水平な平面部３８Ａが形成されている。段差部３８の平面部３８Ａの車両幅方向両端部には、車両前後方向に沿ってフロアクロスメンバ側稜線部（折れ線）３９が形成されており、フロアクロスメンバ側稜線部３９の車両幅方向両側は、車両幅方向両端部に行くに従って下り勾配となる傾斜面３８Ｂとなっている。センターフロアクロスメンバ２４の下部側縦壁部４０の下部の中央部には、トンネルリインフォース１８が貫通する凹状部４４が設けられている。センターフロアクロスメンバ２４の下部側縦壁部４０の下端部には、車両前方側に折り曲げられて車両用フロア１２の一般面１２Ａ及びトンネルリインフォース１８の上面に接合される取付部４６が設けられている。また、上部側縦壁部３６には、車両上下方向に沿って複数のビード４８が設けられ、下部側縦壁部４０には、車両上下方向に沿って複数のビード５０が設けられている。   The stepped portion 38 is provided along the vehicle width direction, and a substantially horizontal flat surface portion 38A is formed at an intermediate portion in the vehicle width direction. At both ends in the vehicle width direction of the flat portion 38A of the stepped portion 38, a floor cross member side ridge line portion (folded line) 39 is formed along the vehicle longitudinal direction, and both sides of the floor cross member side ridge line portion 39 in the vehicle width direction are formed. Is an inclined surface 38B that is inclined downward toward both ends in the vehicle width direction. A concave portion 44 through which the tunnel reinforcement 18 passes is provided in the central portion of the lower portion of the lower side vertical wall portion 40 of the center floor cross member 24. At the lower end portion of the lower vertical wall portion 40 of the center floor cross member 24, there is provided an attachment portion 46 that is bent toward the front side of the vehicle and joined to the general surface 12A of the vehicle floor 12 and the upper surface of the tunnel reinforcement 18. Yes. The upper side vertical wall portion 36 is provided with a plurality of beads 48 along the vehicle vertical direction, and the lower side vertical wall portion 40 is provided with a plurality of beads 50 along the vehicle vertical direction.

センターフロアパネル２２の取付部３０は、センターフロアクロスメンバ２４の段差部３８の形状に合わせて車両幅方向両側部が端部側に行くに従って下り勾配となるように形成されている。図５に示されるように、センターフロアクロスメンバ２４の段差部３８の前端部にはテーパー面が形成されている。そして、センターフロアパネル２２の縦壁部２８の下端部がセンターフロアクロスメンバ２４の段差部３８のテーパー面にスポット溶接等により接合されると共に、センターフロアクロスメンバ２４の上部側縦壁部３６の上端部に形成された取付部４２にセンターフロアパネル２２のフロア上面部２６の下面がスポット溶接等により接合されることにより、センターフロアパネル２２とセンターフロアクロスメンバ２４とで閉断面が構成されている。   The mounting portion 30 of the center floor panel 22 is formed so as to have a downward slope in accordance with the shape of the stepped portion 38 of the center floor cross member 24 as both side portions in the vehicle width direction go to the end side. As shown in FIG. 5, a tapered surface is formed at the front end portion of the stepped portion 38 of the center floor cross member 24. The lower end portion of the vertical wall portion 28 of the center floor panel 22 is joined to the tapered surface of the step portion 38 of the center floor cross member 24 by spot welding or the like, and the upper side vertical wall portion 36 of the center floor cross member 24 is The center floor panel 22 and the center floor cross member 24 form a closed cross section by joining the lower surface of the floor upper surface portion 26 of the center floor panel 22 to the mounting portion 42 formed at the upper end portion by spot welding or the like. Yes.

図６に示されるように、車両正面視にてセンターフロアパネル２２のフロア上面部２６に車両前後方向に沿って形成されたフロア側稜線部２７と、センターフロアクロスメンバ２４の段差部３８に車両前後方向に沿って形成されたフロアクロスメンバ側稜線部３９とは、車両幅方向にオフセットした位置に配置されている。言い換えると、閉断面を構成するフロア上面部２６（閉断面の上面）に形成されたフロア側稜線部２７が、閉断面においてフロア上面部２６と対向する段差部３８（閉断面の下面）に形成されたフロアクロスメンバ側稜線部３９よりも車両幅方向外側にオフセットした位置に配置されている。フロア側稜線部２７とフロアクロスメンバ側稜線部３９の車両幅方向における距離Ｗ１（フロア側稜線部２７とフロアクロスメンバ側稜線部３９の透視平面上における距離Ｗ１）は、約５０ｍｍ以上ずらして配置することが好ましい。 As shown in FIG. 6, the vehicle is placed on the floor side ridge line portion 27 formed along the vehicle front-rear direction on the floor upper surface portion 26 of the center floor panel 22 and the step portion 38 of the center floor cross member 24 when viewed from the front of the vehicle. The floor cross member side ridge line portion 39 formed along the front-rear direction is disposed at a position offset in the vehicle width direction. In other words, the floor-side ridge line portion 27 formed on the floor upper surface portion 26 (the upper surface of the closed section) constituting the closed section is formed on the stepped portion 38 (the lower surface of the closed section) facing the floor upper surface portion 26 in the closed section. The floor cross member side ridge line portion 39 is disposed at a position offset outward in the vehicle width direction. The distance W 1 in the vehicle width direction between the floor side ridge line portion 27 and the floor cross member side ridge line portion 39 (the distance W 1 on the perspective plane of the floor side ridge line portion 27 and the floor cross member side ridge line portion 39) is shifted by about 50 mm or more. Are preferably arranged.

次に、本実施形態の作用並びに効果について説明する。   Next, the operation and effect of this embodiment will be described.

車両用フロア構造では、閉断面を構成するフロア上面部２６に形成されたフロア側稜線部２７が、フロア上面部２６に対向する段差部３８に形成されたフロアクロスメンバ側稜線部３９よりも車両幅方向外側にオフセットした位置に配置されている。これによって、悪路走行時のサスペンションの入力等により、フロア側稜線部２７及びフロアクロスメンバ側稜線部３９を起点としてセンターフロアパネル２２及びセンターフロアクロスメンバ２４が変形することを抑制することができる。さらに、センターフロアパネル２２等を分割して板厚を厚くする必要がないため、センターフロアパネル２２等を１部品で構成することができ、部品点数の増加、及び重量の増加を防止することができる。   In the vehicle floor structure, the floor side ridge line portion 27 formed on the floor upper surface portion 26 constituting the closed section is more vehicle than the floor cross member side ridge line portion 39 formed on the step portion 38 facing the floor upper surface portion 26. It is arranged at a position offset to the outside in the width direction. Thereby, it is possible to suppress deformation of the center floor panel 22 and the center floor cross member 24 from the floor side ridge line portion 27 and the floor cross member side ridge line portion 39 as a starting point due to suspension input or the like when traveling on a rough road. . Furthermore, since it is not necessary to divide the center floor panel 22 or the like to increase the plate thickness, the center floor panel 22 or the like can be composed of one part, and an increase in the number of parts and an increase in weight can be prevented. it can.

図９には、比較例に係る車両用フロア構造が示されている。なお、前述した第１実施形態と同一構成部分については、同一番号を付してその説明を省略する。   FIG. 9 shows a vehicle floor structure according to a comparative example. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

図９に示されるように、クロスメンバ１００は、車両上方側に配置されたセンターフロアパネル１０２と、このセンターフロアパネル１０２の車両下方側に配置されたセンターフロアクロスメンバ２４と、を備えている。センターフロアパネル１０２のフロア上面部２６の車両幅方向両端部には、車両前後方向に沿ってフロア側稜線部１０４が形成されており、フロア側稜線部１０４を挟んで車両幅方向中央部側に平面部２６Ａが形成され、車両幅方向端部側に傾斜面２６Ｂが形成されている。その際、車両正面視にてセンターフロアパネル１０２のフロア上面部２６に車両前後方向に沿って形成されたフロア側稜線部１０４と、センターフロアクロスメンバ２４の段差部３８に車両前後方向に沿って形成されたフロアクロスメンバ側稜線部３９とは、車両幅方向にほぼ一致した位置に配置されている。   As shown in FIG. 9, the cross member 100 includes a center floor panel 102 disposed on the vehicle upper side and a center floor cross member 24 disposed on the vehicle lower side of the center floor panel 102. . At both ends in the vehicle width direction of the floor upper surface portion 26 of the center floor panel 102, a floor side ridge line portion 104 is formed along the vehicle front-rear direction, and on the vehicle width direction center portion side with the floor side ridge line portion 104 interposed therebetween. A flat portion 26A is formed, and an inclined surface 26B is formed on the vehicle width direction end portion side. At that time, the floor side ridgeline portion 104 formed along the vehicle front-rear direction on the floor upper surface portion 26 of the center floor panel 102 and the stepped portion 38 of the center floor cross member 24 along the vehicle front-rear direction when viewed from the front of the vehicle. The formed floor cross member side ridge line portion 39 is arranged at a position substantially coincident with the vehicle width direction.

比較例に係る車両用フロア構造では、車両正面視にてセンターフロアパネル１０２のフロア上面部２６に形成されたフロア側稜線部１０４と、センターフロアクロスメンバ２４の段差部３８に形成されたフロアクロスメンバ側稜線部３９とが、車両幅方向にほぼ一致した位置に配置されており、悪路走行時のサスペンションの入力等により、フロア側稜線部１０４及びフロアクロスメンバ側稜線部３９を起点としてセンターフロアパネル１０２及びセンターフロアクロスメンバ２４が変形する可能性がある。すなわち、フロア側稜線部１０４及びフロアクロスメンバ側稜線部３９を起点として、図１０中の矢印Ｂ、矢印Ｃに示される方向にセンターフロアパネル１０２及びセンターフロアクロスメンバ２４の変形が集中する可能性がある。   In the vehicle floor structure according to the comparative example, the floor side ridgeline portion 104 formed on the floor upper surface portion 26 of the center floor panel 102 and the floor cross formed on the step portion 38 of the center floor cross member 24 in the vehicle front view. The member-side ridge line portion 39 is arranged at a position substantially coincident with the vehicle width direction, and the center is started from the floor-side ridge line portion 104 and the floor cross member-side ridge line portion 39 by the input of a suspension during rough road driving. The floor panel 102 and the center floor cross member 24 may be deformed. That is, the deformation of the center floor panel 102 and the center floor cross member 24 may concentrate in the directions indicated by the arrows B and C in FIG. 10 starting from the floor side ridge line portion 104 and the floor cross member side ridge line portion 39. There is.

図８には、本実施形態のクロスメンバ２０の図７中のＡ−Ａ線に沿った横断面における変形状態を、比較例のクロスメンバ１００の変形状態と比較した解析図が示されている。   FIG. 8 shows an analysis diagram in which the deformed state of the cross member 20 of the present embodiment in the cross section along the line AA in FIG. 7 is compared with the deformed state of the cross member 100 of the comparative example. .

図８に示されるように、本実施形態のクロスメンバ２０では、センターフロアパネル２２の縦壁部２８とセンターフロアクロスメンバ２４の上部側縦壁部３６の変形量が、比較例のクロスメンバ１００のセンターフロアパネル１０２の縦壁部２８とセンターフロアクロスメンバ２４の上部側縦壁部３６の変形量に比べて小さいことが分かる。従って、本実施形態のクロスメンバ２０では、フロア側稜線部２７とフロアクロスメンバ側稜線部３９とを車両幅方向にオフセットして配置することにより、フロア側稜線部２７とフロアクロスメンバ側稜線部３９とを起点としてセンターフロアパネル２２及びセンターフロアクロスメンバ２４が変形することを抑制することができる。   As shown in FIG. 8, in the cross member 20 of the present embodiment, the deformation amount of the vertical wall portion 28 of the center floor panel 22 and the upper side vertical wall portion 36 of the center floor cross member 24 is such that the cross member 100 of the comparative example. It can be seen that the amount of deformation of the vertical wall 28 of the center floor panel 102 and the upper vertical wall 36 of the center floor cross member 24 is small. Therefore, in the cross member 20 according to the present embodiment, the floor side ridge line portion 27 and the floor cross member side ridge line portion 27 and the floor cross member side ridge line portion 39 are arranged offset in the vehicle width direction. It is possible to suppress the deformation of the center floor panel 22 and the center floor cross member 24 starting from 39.

〔第２実施形態〕   [Second Embodiment]

次に、図１１を用いて、本発明に係る車両用フロア構造の第２実施形態について説明する。なお、前述した第１実施形態と同一構成部分については、同一番号を付してその説明を省略する。   Next, a second embodiment of the vehicle floor structure according to the present invention will be described with reference to FIG. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

図１１に示されるように、クロスメンバ６０は、車両上方側に配置されたセンターフロアパネル６２と、このセンターフロアパネル６２の車両下方側に配置されたセンターフロアクロスメンバ６４と、を備えている。センターフロアパネル６２の縦壁部２８には、車両上下方向に沿ってフロア側稜線部（折れ線）６６が形成されている。縦壁部２８は、フロア側稜線部６６を挟んで車両幅方向中央部に車両上下方向に沿った平面部６２Ａと、フロア側稜線部６６を挟んで車両幅方向端部に車両後方側に後退した傾斜部６２Ｂと、を備えている。センターフロアクロスメンバ６４の上部側縦壁部３６には、車両上下方向に沿ってフロアクロスメンバ側稜線部（折れ線）６８が形成されている。上部側縦壁部３６は、フロアクロスメンバ側稜線部６８を挟んで車両幅方向中央部に車両上下方向に沿った平面部６４Ａと、フロアクロスメンバ側稜線部６８を挟んで車両幅方向端部に車両後方側に後退した傾斜部６４Ｂと、を備えている。   As shown in FIG. 11, the cross member 60 includes a center floor panel 62 disposed on the vehicle upper side and a center floor cross member 64 disposed on the vehicle lower side of the center floor panel 62. . On the vertical wall portion 28 of the center floor panel 62, a floor-side ridge line portion (folded line) 66 is formed along the vehicle vertical direction. The vertical wall portion 28 retreats to the vehicle rear side at the vehicle width direction end portion across the floor side ridge line portion 66 and the flat portion 62A along the vehicle vertical direction at the vehicle width direction center portion across the floor side ridge line portion 66. And an inclined portion 62B. On the upper side vertical wall portion 36 of the center floor cross member 64, a floor cross member side ridge line portion (folded line) 68 is formed along the vehicle vertical direction. The upper-side vertical wall portion 36 includes a plane portion 64A along the vehicle vertical direction at the center in the vehicle width direction with the floor cross member side ridge line portion 68 interposed therebetween, and a vehicle width direction end portion with the floor cross member side ridge line portion 68 interposed therebetween. And an inclined portion 64 </ b> B that is retracted to the vehicle rear side.

クロスメンバ６０では、車両平面視にてセンターフロアパネル６２の縦壁部２８に車両上下方向に沿って形成されたフロア側稜線部６６と、センターフロアクロスメンバ６４の上部側縦壁部３６に車両上下方向に沿って形成されたフロアクロスメンバ側稜線部６８とが、車両幅方向にオフセットした位置に配置されている。言い換えると、閉断面を構成するセンターフロアパネル６２の縦壁部２８（閉断面の前面）に形成されたフロア側稜線部６６が、閉断面において縦壁部２８と対向するセンターフロアクロスメンバ６４の上部側縦壁部３６（閉断面の後面）に形成されたフロアクロスメンバ側稜線部６８よりも車両幅方向外側にオフセットした位置に配置されている。フロア側稜線部６６とフロアクロスメンバ側稜線部６８の車両幅方向における距離Ｗ２（フロア側稜線部６６とフロアクロスメンバ側稜線部６８の透視平面上における距離Ｗ２）は、約５０ｍｍ以上ずらして配置することが好ましい。 In the cross member 60, the vehicle is placed on the floor side ridgeline portion 66 formed in the vertical wall portion 28 of the center floor panel 62 along the vehicle vertical direction in the vehicle plan view, and on the upper side vertical wall portion 36 of the center floor cross member 64. A floor cross member side ridge line portion 68 formed along the vertical direction is disposed at a position offset in the vehicle width direction. In other words, the floor side ridge line portion 66 formed on the vertical wall portion 28 (front surface of the closed cross section) of the center floor panel 62 constituting the closed cross section of the center floor cross member 64 facing the vertical wall portion 28 in the closed cross section. The floor cross member side ridge line portion 68 formed on the upper side vertical wall portion 36 (the rear surface of the closed cross section) is disposed at a position offset outward in the vehicle width direction. The distance W 2 in the vehicle width direction between the floor side ridge line part 66 and the floor cross member side ridge line part 68 (the distance W 2 on the perspective plane between the floor side ridge line part 66 and the floor cross member side ridge line part 68) is shifted by about 50 mm or more. Are preferably arranged.

次に、本実施形態の作用並びに効果について説明する。   Next, the operation and effect of this embodiment will be described.

車両用フロア構造では、閉断面を構成するセンターフロアパネル６２の縦壁部２８に形成されたフロア側稜線部６６が、閉断面において縦壁部２８と対向するセンターフロアクロスメンバ６４の上部側縦壁部３６に形成されたフロアクロスメンバ側稜線部６８よりも車両幅方向外側にオフセットした位置に配置されている。これによって、悪路走行時のサスペンションの入力等により、フロア側稜線部６６及びフロアクロスメンバ側稜線部６８を起点としてセンターフロアパネル６２及びセンターフロアクロスメンバ６４が変形することを抑制することができる。さらに、センターフロアパネル６２等を分割して板厚を厚くする必要がないため、センターフロアパネル６２等を１部品で構成することができ、部品点数の増加、及び重量の増加を防止することができる。   In the vehicle floor structure, the floor-side ridgeline portion 66 formed on the vertical wall portion 28 of the center floor panel 62 constituting the closed section has an upper-side vertical length on the center floor cross member 64 facing the vertical wall portion 28 in the closed section. The floor cross member side ridge line portion 68 formed on the wall portion 36 is disposed at a position offset outward in the vehicle width direction. Thereby, it is possible to prevent the center floor panel 62 and the center floor cross member 64 from being deformed from the floor side ridge line portion 66 and the floor cross member side ridge line portion 68 as a starting point due to suspension input or the like when traveling on a rough road. . Furthermore, since it is not necessary to divide the center floor panel 62 and the like to increase the plate thickness, the center floor panel 62 and the like can be configured with one part, and an increase in the number of parts and an increase in weight can be prevented. it can.

〔第３実施形態〕   [Third Embodiment]

次に、図１２を用いて、本発明に係る車両用フロア構造の第３実施形態について説明する。なお、前述した第１実施形態及び第２実施形態と同一構成部分については、同一番号を付してその説明を省略する。   Next, a third embodiment of the vehicle floor structure according to the present invention will be described with reference to FIG. In addition, about the same component as 1st Embodiment and 2nd Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

図１２に示されるように、クロスメンバ７０は、車両上方側に配置されたセンターフロアパネル７２と、このセンターフロアパネル７２の車両下方側に配置されたセンターフロアクロスメンバ７４と、を備えている。センターフロアパネル７２のフロア上面部２６には、車両前後方向に沿ってフロア側稜線部としてのフロア上面部側稜線部７６が形成されており、センターフロアパネル７２の縦壁部２８には、車両上下方向に沿ってフロア側稜線部としてのフロア縦壁部側稜線部７８が形成されている。フロア上面部２６は、フロア上面部側稜線部７６を挟んで車両幅方向中央部に略水平の平面部７２Ａと、フロア側稜線部６６を挟んで車両幅方向端部に車両下方側に傾斜した傾斜部７２Ｂと、を備えている。縦壁部２８は、フロア縦壁部側稜線部７８を挟んで車両幅方向中央部に車両上下方向に沿った平面部７２Ｃと、フロア縦壁部側稜線部７８を挟んで車両幅方向端部に車両後方側に後退した傾斜部７２Ｄと、を備えている。   As shown in FIG. 12, the cross member 70 includes a center floor panel 72 disposed on the vehicle upper side, and a center floor cross member 74 disposed on the vehicle lower side of the center floor panel 72. . The floor upper surface portion 26 of the center floor panel 72 is formed with a floor upper surface portion side ridge line portion 76 as a floor side ridge line portion along the vehicle longitudinal direction, and the vertical wall portion 28 of the center floor panel 72 has a vehicle A floor vertical wall portion side ridge line portion 78 as a floor side ridge line portion is formed along the vertical direction. The floor upper surface portion 26 is inclined to the vehicle lower side at the vehicle width direction end portion with the floor side ridge line portion 66 sandwiched between the substantially horizontal plane portion 72A and the floor side ridge line portion 66 with the floor surface ridge line portion 76 interposed therebetween. And an inclined portion 72B. The vertical wall portion 28 includes a plane portion 72C along the vehicle vertical direction at the center portion in the vehicle width direction with the floor vertical wall portion side ridge line portion 78 interposed therebetween, and a vehicle width direction end portion with the floor vertical wall portion side ridge line portion 78 interposed therebetween. And an inclined portion 72D that is retracted to the vehicle rear side.

センターフロアクロスメンバ７４の段差部３８には、車両前後方向に沿ってフロアクロスメンバ側稜線部としての段差部側稜線部８０が形成されており、センターフロアクロスメンバ７４の上部側縦壁部３６には、車両上下方向に沿ってフロアクロスメンバ側稜線部としての壁部側稜線部８２が形成されている。段差部３８は、段差部側稜線部８０を挟んで車両幅方向中央部に略水平の平面部７４Ａと、段差部側稜線部８０を挟んで車両幅方向端部に車両下方側に傾斜した傾斜部７４Ｂと、を備えている。上部側縦壁部３６は、壁部側稜線部８２を挟んで車両幅方向中央部に車両上下方向に沿った平面部７４Ｃと、壁部側稜線部８２を挟んで車両幅方向端部に車両後方側に後退した傾斜部７４Ｄと、を備えている。   On the stepped portion 38 of the center floor cross member 74, a stepped portion side ridgeline portion 80 is formed as a floor crossmember side ridgeline portion along the vehicle longitudinal direction, and the upper side vertical wall portion 36 of the center floor crossmember 74 is formed. A wall side ridge line portion 82 is formed as a floor cross member side ridge line portion along the vehicle vertical direction. The stepped portion 38 has a substantially horizontal flat portion 74A at the center in the vehicle width direction across the stepped portion side ridgeline portion 80, and an inclination inclined toward the vehicle lower side at the vehicle widthwise end portion across the stepped portion side ridgeline portion 80. Part 74B. The upper side vertical wall portion 36 has a flat portion 74C along the vehicle vertical direction at the vehicle width direction center portion with the wall portion side ridge line portion 82 interposed therebetween, and a vehicle at the vehicle width direction end portion with the wall portion side ridge line portion 82 interposed therebetween. And an inclined portion 74D that is retracted rearward.

クロスメンバ７０は、車両正面視にてセンターフロアパネル７２のフロア上面部２６に車両前後方向に沿って形成されたフロア上面部側稜線部７６が、センターフロアクロスメンバ７４の段差部３８に車両前後方向に沿って形成された段差部側稜線部８０に対して車両幅方向外側にオフセットした位置に配置されている（図１２（Ａ）中の一点鎖線参照）。また、車両平面視にてセンターフロアクロスメンバ７４の上部側縦壁部３６に車両上下方向に沿って形成された壁部側稜線部８２が、センターフロアパネル７２の縦壁部２８に車両上下方向に沿って形成されたフロア縦壁部側稜線部７８に対して車両幅方向外側にオフセットした位置に配置されている。フロア上面部側稜線部７６と段差部側稜線部８０の車両幅方向における距離（透視平面上における距離）、フロア縦壁部側稜線部７８と壁部側稜線部８２の車両幅方向における距離（透視平面上における距離）は、それぞれ約５０ｍｍ以上ずらして配置することが好ましい。   In the cross member 70, a floor upper surface side ridge line portion 76 formed on the floor upper surface portion 26 of the center floor panel 72 along the vehicle front-rear direction in the vehicle front view is formed on the stepped portion 38 of the center floor cross member 74. It arrange | positions in the position offset to the vehicle width direction outer side with respect to the level | step-difference part side ridgeline part 80 formed along the direction (refer the dashed-dotted line in FIG. 12 (A)). In addition, a wall-side ridge line portion 82 formed in the upper vertical wall portion 36 of the center floor cross member 74 along the vehicle vertical direction in the vehicle plan view is formed on the vertical wall portion 28 of the center floor panel 72 in the vehicle vertical direction. Is arranged at a position offset to the outside in the vehicle width direction with respect to the floor vertical wall portion side ridgeline portion 78 formed along. The distance in the vehicle width direction between the floor upper surface side ridge line portion 76 and the stepped portion side ridge line portion 80 (distance on the perspective plane), the distance between the floor vertical wall portion side ridge line portion 78 and the wall side ridge line portion 82 in the vehicle width direction ( The distance on the perspective plane) is preferably shifted by about 50 mm or more.

次に、本実施形態の作用並びに効果について説明する。   Next, the operation and effect of this embodiment will be described.

車両用フロア構造では、フロア上面部側稜線部７６と段差部側稜線部８０とが車両幅方向にオフセットした位置に配置されると共に、フロア縦壁部側稜線部７８と壁部側稜線部８２とが車両幅方向にオフセットした位置に配置されており、閉断面における２箇所でぞれぞれの折れ線の位置がずれている。これによって、悪路走行時のサスペンションの入力等により、フロア上面部側稜線部７６及び段差部側稜線部８０、フロア縦壁部側稜線部７８及び壁部側稜線部８２を起点としてセンターフロアパネル７２及びセンターフロアクロスメンバ７４が変形することをより確実に抑制することができる。さらに、センターフロアパネル７２等を分割して板厚を厚くする必要がないため、センターフロアパネル７２等を１部品で構成することができ、部品点数の増加、及び重量の増加を防止することができる。   In the vehicle floor structure, the floor upper surface portion side ridge line portion 76 and the step portion side ridge line portion 80 are arranged at positions offset in the vehicle width direction, and the floor vertical wall portion side ridge line portion 78 and wall portion side ridge line portion 82 are arranged. Are arranged at positions offset in the vehicle width direction, and the positions of the respective broken lines are shifted at two positions on the closed cross section. As a result, the center floor panel starts from the floor top surface side ridgeline portion 76, the stepped portion side ridgeline portion 80, the floor vertical wall portion side ridgeline portion 78, and the wall side ridgeline portion 82 by the input of the suspension when traveling on a rough road. It can suppress more reliably that 72 and the center floor cross member 74 deform | transform. Furthermore, since it is not necessary to divide the center floor panel 72 etc. to increase the plate thickness, the center floor panel 72 etc. can be configured with one part, and an increase in the number of parts and an increase in weight can be prevented. it can.

〔実施形態の補足説明〕   [Supplementary explanation of the embodiment]

上述した第１実施形態では、フロア側稜線部２７がフロアクロスメンバ側稜線部３９よりも車両幅方向外側にオフセットしているが、これに限定されず、逆方向にオフセットさせる構成でもよい。   In the first embodiment described above, the floor-side ridge line portion 27 is offset to the vehicle width direction outer side than the floor cross member-side ridge line portion 39. However, the present invention is not limited to this and may be configured to be offset in the reverse direction.

上述した第２実施形態では、フロアクロスメンバ側稜線部６８がフロア側稜線部６６よりも車両幅方向外側にオフセットしているが、これに限定されず、逆方向にオフセットさせる構成でもよい。   In the second embodiment described above, the floor cross member-side ridge line portion 68 is offset to the vehicle width direction outer side than the floor-side ridge line portion 66. However, the present invention is not limited to this, and a configuration in which it is offset in the reverse direction may be used.

上述した第３実施形態では、フロア上面部側稜線部７６が段差部側稜線部８０よりも車両幅方向外側にオフセットしており、壁部側稜線部８２がフロア縦壁部側稜線部７８よりも車両幅方向外側にオフセットしているが、これに限定されず、それぞれ逆方向にオフセットさせる構成でもよい。すなわち、フロア上面部側稜線部７６と段差部側稜線部８０を逆方向にオフセットさせる構成、壁部側稜線部８２とフロア縦壁部側稜線部７８を逆方向にオフセットさせる構成、又は、両者を逆方向にオフセットさせる構成でもよい。   In the third embodiment described above, the floor upper surface side ridge line portion 76 is offset outward in the vehicle width direction from the stepped portion side ridge line portion 80, and the wall side ridge line portion 82 is from the floor vertical wall portion side ridge line portion 78. Is offset to the outside in the vehicle width direction, but is not limited to this, and may be offset in the opposite direction. That is, a configuration in which the floor top surface side ridge line portion 76 and the stepped portion side ridge line portion 80 are offset in the reverse direction, a configuration in which the wall side ridge line portion 82 and the floor vertical wall portion side ridge line portion 78 are offset in the reverse direction, or both It may be configured to offset in the reverse direction.

また、本発明では、フロア側稜線部とフロアクロスメンバ側稜線部とは、必ずしもセンターフロアパネルとセンターフロアクロスメンバとの閉断面のみに形成する必要はなく、閉断面の外側に延長して設けられていてもよい。   Further, in the present invention, the floor side ridge line portion and the floor cross member side ridge line portion do not necessarily have to be formed only in the closed cross section of the center floor panel and the center floor cross member, and are provided extending outside the closed cross section. It may be done.

第１実施形態に係る車両用フロア構造が適用された車両を示す斜視図である。1 is a perspective view showing a vehicle to which a vehicle floor structure according to a first embodiment is applied. 第１実施形態に係る車両用フロア構造の全体構成を示す斜視図である。1 is a perspective view showing an overall configuration of a vehicle floor structure according to a first embodiment. 第１実施形態に係る車両用フロア構造に用いられるセンターフロアパネル単体を示す斜視図である。It is a perspective view which shows the center floor panel single-piece | unit used for the vehicle floor structure which concerns on 1st Embodiment. 第１実施形態に係る車両用フロア構造に用いられるセンターフロアクロスメンバ単体を示す斜視図である。It is a perspective view which shows the center floor cross member single-piece | unit used for the vehicle floor structure which concerns on 1st Embodiment. 第１実施形態に係る車両用フロア構造の閉断面部分を示す縦断面図である。It is a longitudinal section showing the closed section part of the floor structure for vehicles concerning a 1st embodiment. 第１実施形態に係る車両用フロア構造を示す部分正面図である。It is a partial front view showing the floor structure for vehicles concerning a 1st embodiment. 第１実施形態に係る車両用フロア構造の変形を説明するための部分正面図である。It is a partial front view for demonstrating the deformation | transformation of the floor structure for vehicles which concerns on 1st Embodiment. 図７中のＡ−Ａ線における第１実施形態に係る車両用フロア構造と比較例に係る車両用フロア構造の変形状態を示す断面図である。It is sectional drawing which shows the deformation | transformation state of the vehicle floor structure which concerns on 1st Embodiment in the AA in FIG. 7, and the vehicle floor structure which concerns on a comparative example. 比較例に係る車両用フロア構造の全体構成を示す斜視図である。It is a perspective view which shows the whole structure of the floor structure for vehicles which concerns on a comparative example. 比較例に係る車両用フロア構造の変形を説明するための平面図である。It is a top view for demonstrating the deformation | transformation of the vehicle floor structure which concerns on a comparative example. 第２実施形態に係る車両用フロア構造の全体構成を示す平面図である。It is a top view which shows the whole structure of the floor structure for vehicles which concerns on 2nd Embodiment. （Ａ）は第３実施形態に係る車両用フロア構造の全体構成を示す正面図であり、（Ｂ）は第３実施形態に係る車両用フロア構造の全体構成を示す平面図である。(A) is a front view which shows the whole structure of the vehicle floor structure which concerns on 3rd Embodiment, (B) is a top view which shows the whole structure of the vehicle floor structure which concerns on 3rd Embodiment.

符号の説明Explanation of symbols

１０ 車両
２０ クロスメンバ（車両用フロア構造）
２２ センターフロアパネル
２４ センターフロアクロスメンバ
２６ フロア上面部
２７ フロア側稜線部
２８ 縦壁部
３６ 上部側縦壁部（壁部）
３８ 段差部
３９ フロアクロスメンバ側稜線部
６０ クロスメンバ（車両用フロア構造）
６２ センターフロアパネル
６４ センターフロアクロスメンバ
６６ フロア側稜線部
６８ フロアクロスメンバ側稜線部
７０ クロスメンバ（車両用フロア構造）
７２ センターフロアパネル
７４ センターフロアクロスメンバ
７６ フロア上面部側稜線部
７８ フロア縦壁部側稜線部
８０ 段差部側稜線部
８２ 壁部側稜線部 10 Vehicle 20 Cross member (Vehicle floor structure)
22 Center floor panel 24 Center floor cross member 26 Floor upper surface portion 27 Floor side ridge line portion 28 Vertical wall portion 36 Upper side vertical wall portion (wall portion)
38 Stepped portion 39 Floor cross member side ridge line portion 60 Cross member (vehicle floor structure)
62 Center floor panel 64 Center floor cross member 66 Floor side ridge line portion 68 Floor cross member side ridge line portion 70 Cross member (vehicle floor structure)
72 Center floor panel 74 Center floor cross member 76 Floor upper surface side ridge line part 78 Floor vertical wall part side ridge line part 80 Step part side ridge line part 82 Wall part side ridge line part

Claims (4)

車両幅方向に沿って延在すると共に、車両前方側にフロア上面部から車両下方側に延設された縦壁部を備えたセンターフロア部材と、
前記センターフロア部材の車両下方側に配置されると共に、車両上下方向に沿って配置された壁部の中間部に車両幅方向に沿って車両前方側に突出するように形成された段差部を備え、前記段差部の前端部に前記縦壁部の下端部が接合され、かつ、前記壁部の上端部に前記フロア上面部が接合されて前記センターフロア部材との閉断面が構成されるセンターフロアクロスメンバと、
前記センターフロア部材の車両幅方向両端部に設けられ、前記閉断面を構成する前記フロア上面部又は前記縦壁部に形成されたフロア側稜線部と、
前記センターフロアクロスメンバの車両幅方向両端部に設けられ、前記閉断面において前記フロア上面部又は前記縦壁部と対向する前記段差部又は前記壁部に形成されると共に、前記フロア側稜線部と車両幅方向にオフセットした位置に配置されたフロアクロスメンバ側稜線部と、
を有することを特徴とする車両用フロア構造。 A center floor member that extends along the vehicle width direction and includes a vertical wall portion that extends from the floor upper surface portion to the vehicle lower side on the vehicle front side;
The center floor member is disposed on the vehicle lower side, and includes a step portion formed at the middle portion of the wall portion disposed along the vehicle vertical direction so as to protrude toward the vehicle front side along the vehicle width direction. A center floor in which the lower end portion of the vertical wall portion is joined to the front end portion of the step portion, and the floor upper surface portion is joined to the upper end portion of the wall portion to form a closed cross section with the center floor member. Cross members,
A floor side ridge line portion formed on the floor upper surface portion or the vertical wall portion that is provided at both ends in the vehicle width direction of the center floor member and constitutes the closed section;
The center floor cross member is provided at both ends in the vehicle width direction, and is formed on the stepped portion or the wall portion facing the floor upper surface portion or the vertical wall portion in the closed section, and the floor side ridge line portion; A floor cross member side ridge line portion arranged at a position offset in the vehicle width direction;
A vehicle floor structure characterized by comprising: 前記フロア側稜線部が前記閉断面を構成する前記フロア上面部に車両前後方向に沿って形成されると共に、前記フロアクロスメンバ側稜線部が前記閉断面を構成する前記段差部に車両前後方向に沿って形成されており、
車両正面視にて前記フロア側稜線部と前記フロアクロスメンバ側稜線部とが車両幅方向にオフセットして配置されていることを特徴とする請求項１に記載の車両用フロア構造。 The floor side ridge line portion is formed on the floor upper surface portion constituting the closed section along the vehicle front-rear direction, and the floor cross member side ridge line portion is formed on the step portion constituting the closed section in the vehicle front-rear direction. Formed along the
2. The vehicle floor structure according to claim 1, wherein the floor side ridge line part and the floor cross member side ridge line part are arranged offset in the vehicle width direction when viewed from the front of the vehicle. 前記フロア側稜線部が前記閉断面を構成する前記縦壁部に車両上下方向に沿って形成されると共に、前記フロアクロスメンバ側稜線部が前記閉断面を構成する前記壁部に車両上下方向に沿って形成されており、
車両平面視にて前記フロア側稜線部と前記フロアクロスメンバ側稜線部とが車両幅方向にオフセットして配置されていることを特徴とする請求項１に記載の車両用フロア構造。 The floor side ridge line portion is formed in the vertical wall portion constituting the closed cross section along the vehicle vertical direction, and the floor cross member side ridge line portion is formed in the vehicle vertical direction on the wall portion constituting the closed cross section. Formed along the
2. The vehicle floor structure according to claim 1, wherein the floor side ridge line part and the floor cross member side ridge line part are arranged offset in the vehicle width direction in a vehicle plan view. 前記フロア側稜線部が、前記閉断面を構成する前記フロア上面部に車両前後方向に沿って形成されたフロア上面部側稜線部と、前記閉断面を構成する前記縦壁部に車両上下方向に沿って形成されたフロア縦壁部側稜線部と、を備えると共に、
前記フロアクロスメンバ側稜線部が、前記閉断面を構成する前記段差部に車両前後方向に沿って形成された段差部側稜線部と、前記閉断面を構成する前記壁部に車両上下方向に沿って形成された壁部側稜線部と、を備え、
車両正面視にて前記フロア上面部側稜線部と前記段差部側稜線部とが車両幅方向にオフセットして配置されると共に、車両平面視にて前記フロア縦壁部側稜線部と前記壁部側稜線部とが車両幅方向にオフセットして配置されていることを特徴とする請求項１に記載の車両用フロア構造。 The floor side ridge line part is formed on the floor upper surface part constituting the closed cross section along the vehicle front-rear direction, and the vertical wall part constituting the closed cross section is arranged in the vehicle vertical direction. And the floor vertical wall portion side ridge line portion formed along,
The floor cross member side ridge line portion is formed in the stepped portion side ridgeline portion along the vehicle longitudinal direction in the stepped portion constituting the closed cross section, and the wall portion constituting the closed cross section along the vehicle vertical direction. The wall side ridge line part formed by,
The floor upper surface portion side ridge line portion and the stepped portion side ridge line portion are arranged offset in the vehicle width direction in a vehicle front view, and the floor vertical wall portion side ridge line portion and the wall portion in a vehicle plan view. The vehicle floor structure according to claim 1, wherein the side ridge line portion is arranged offset in the vehicle width direction.
JP2008197353A 2008-07-31 2008-07-31 Vehicle floor structure Expired - Fee Related JP5115386B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008197353A JP5115386B2 (en) 2008-07-31 2008-07-31 Vehicle floor structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008197353A JP5115386B2 (en) 2008-07-31 2008-07-31 Vehicle floor structure

Publications (2)

Publication Number Publication Date
JP2010030546A true JP2010030546A (en) 2010-02-12
JP5115386B2 JP5115386B2 (en) 2013-01-09

Family

ID=41735567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008197353A Expired - Fee Related JP5115386B2 (en) 2008-07-31 2008-07-31 Vehicle floor structure

Country Status (1)

Country Link
JP (1) JP5115386B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011173508A (en) * 2010-02-24 2011-09-08 Daihatsu Motor Co Ltd Cross member structure
JP2011173507A (en) * 2010-02-24 2011-09-08 Daihatsu Motor Co Ltd Cross member structure
WO2013054565A1 (en) * 2011-10-14 2013-04-18 スズキ株式会社 Floor structure for vehicle body rear part

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6394875U (en) * 1986-12-10 1988-06-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6394875U (en) * 1986-12-10 1988-06-18

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011173508A (en) * 2010-02-24 2011-09-08 Daihatsu Motor Co Ltd Cross member structure
JP2011173507A (en) * 2010-02-24 2011-09-08 Daihatsu Motor Co Ltd Cross member structure
WO2013054565A1 (en) * 2011-10-14 2013-04-18 スズキ株式会社 Floor structure for vehicle body rear part
JPWO2013054565A1 (en) * 2011-10-14 2015-03-30 スズキ株式会社 Floor structure at the rear of the car body
US8991905B2 (en) 2011-10-14 2015-03-31 Suzuki Motor Corporation Floor structure in vehicle body rear part

Also Published As

Publication number Publication date
JP5115386B2 (en) 2013-01-09

Similar Documents

Publication Publication Date Title
JP4272626B2 (en) Lower body structure
JP6550641B2 (en) Front body structure of the vehicle
JP6212526B2 (en) Body front structure
JP5920328B2 (en) Vehicle rear structure
JP2007186040A (en) Vehicle rear body structure
JP2009248593A (en) Vehicle body framework structure
JP2009113766A (en) Vehicle-body side-part structure
JP6272931B2 (en) Body structure
JP5115386B2 (en) Vehicle floor structure
JP5560069B2 (en) Floor structure
JP5761010B2 (en) Lower body structure
JP6378301B2 (en) Car body superstructure and method of assembling car body superstructure
JP5515956B2 (en) Upper body structure of the vehicle
JP5215917B2 (en) Lower body structure
CN109941354B (en) Vehicle front structure
JP5813088B2 (en) Body structure
JP2018075937A (en) Vehicle rear part structure
JP4853165B2 (en) Dash panel structure
JP4581621B2 (en) Vehicle fuel tank support structure
JP2013100108A (en) Vehicle body lower structure
JP5589879B2 (en) Body structure
JP2008265672A (en) Roof rail mounting structure
JP5144705B2 (en) Auto body structure
JP4453005B2 (en) Seat bracket mounting structure
JP6893747B2 (en) Vehicle structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100923

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120111

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120124

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120319

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120918

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20121001

R151 Written notification of patent or utility model registration

Ref document number: 5115386

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151026

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees