JP2009012634A - Body structure for vehicle - Google Patents

Body structure for vehicle Download PDF

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Publication number
JP2009012634A
JP2009012634A JP2007177272A JP2007177272A JP2009012634A JP 2009012634 A JP2009012634 A JP 2009012634A JP 2007177272 A JP2007177272 A JP 2007177272A JP 2007177272 A JP2007177272 A JP 2007177272A JP 2009012634 A JP2009012634 A JP 2009012634A
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vehicle
floor
additional
passenger compartment
floor tunnel
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JP2007177272A
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Japanese (ja)
Inventor
Harunori Nagao
治典 長尾
Hirotaka Kusunoki
弘隆 楠
Yoko Ookurotani
陽子 大黒谷
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Mazda Motor Corp
マツダ株式会社
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Priority to JP2007177272A priority Critical patent/JP2009012634A/en
Publication of JP2009012634A publication Critical patent/JP2009012634A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To suppress deformation toward an inner side of a cabin by enhancing durability relative to side collision of a vehicle, and to ensure a wide foot space for an occupant in a rear row seat, in a body structure for the vehicle. <P>SOLUTION: A portion positioned above a cabin floor 2 of a base part of a center pillar 6 and an upper surface of an upper wall part of a floor tunnel 3 are connected in a vehicle width direction, and a cross member 20 comprising one structure body laid between left and right center pillars 6 is provided with a space with the cabin floor 2. A rear part of a seat rail 11 of front row seats 10A, 10B is fixedly supported on the cross member 20. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、車両の車体構造に関し、特に車室フロアより上方位置にクロスメンバを設けて、車両の側突時に車室内方への変形を抑制するように構成したものに関する。   The present invention relates to a vehicle body structure of a vehicle, and more particularly to a structure in which a cross member is provided at a position above a vehicle floor so as to suppress deformation toward the vehicle interior when the vehicle collides.

従来、車両の車体構造において、車室フロアの車幅方向中央部に上方に膨出して車体前後方向に延在して形成されたフロアトンネルと、車体側面開口部の下縁部を構成するサイドシルの前後方向中間部とルーフとを上下方向に結合するピラーと、車体側面開口部からアクセス可能な前列及び後列シート等が設けられ、車両の側突時に車室内方への変形を抑制する為に、サイドシルの前後方向中間部に車幅方向に延びるクロスメンバを連結し、車体側部の剛性強度を高めた構造が実用に供されている。   2. Description of the Related Art Conventionally, in a vehicle body structure of a vehicle, a floor tunnel formed by bulging upward in the vehicle width direction center portion of the passenger compartment floor and extending in the vehicle body front-rear direction, and a side sill constituting the lower edge portion of the vehicle body side opening A pillar that connects the front and rear intermediate part and the roof in the vertical direction, and front and rear seats that can be accessed from the opening on the side of the vehicle body are provided to prevent deformation toward the interior of the vehicle during a side impact of the vehicle. A structure in which a cross member extending in the vehicle width direction is connected to the intermediate portion in the front-rear direction of the side sill to increase the rigidity strength of the side portion of the vehicle body has been put into practical use.

特許文献1に記載の自動車のフロア部車体構造においては、フロアパネルの上面に2本の構造体からなるクロスメンバを車幅方向に夫々配設し、クロスメンバの車幅方向内端部をフロアトンネルに夫々接合し、クロスメンバの車幅方向外端部をセンターピラーの基部(サイドシルの前後方向中間部)に夫々接合することで、車体側部の剛性強度を高めた構造が開示されている。また、クロスメンバの車幅方向外端部の後側部分には、シートブラケットを介して前列シートのシートレールの後端部が夫々連結されている
特開平11−291953号公報
In the vehicle body structure of a floor part of an automobile described in Patent Document 1, cross members made of two structures are arranged on the upper surface of the floor panel in the vehicle width direction, and the inner end part of the cross member in the vehicle width direction is the floor. A structure has been disclosed in which the rigidity strength of the vehicle body side portion is increased by joining to the tunnel and joining the outer end portion of the cross member in the vehicle width direction to the base portion of the center pillar (the intermediate portion in the front-rear direction of the side sill). . Further, the rear end portion of the seat rail of the front row seat is connected to the rear portion of the outer end portion in the vehicle width direction of the cross member via the seat bracket.
JP 11-291953 A

ところで、特許文献1の構造においては、センターピラーの基部にクロスメンバが連結されているが、一般に、センターピラーの基部は車体の上下方向低位置に位置するため、車両の側突に対する耐力を向上させるうえで不利であり、車室内方への変形を抑制するうえで改善の余地がある。   By the way, in the structure of Patent Document 1, a cross member is connected to the base portion of the center pillar. However, since the base portion of the center pillar is generally located at a low position in the vertical direction of the vehicle body, the resistance to side collision of the vehicle is improved. There is room for improvement in suppressing the deformation toward the vehicle interior.

さらに、特許文献1の構造においては、フロアパネルの上面に2本のクロスメンバが配設され、これらクロスメンバの車幅方向外端部にシートブラケットを介して前列シートのシートレールの後端部が夫々連結されているため、後列シートの乗員の足元スペースが狭くなるという問題もある。   Furthermore, in the structure of Patent Document 1, two cross members are disposed on the upper surface of the floor panel, and the rear end portions of the seat rails of the front row seats are disposed on the outer end portions of the cross members in the vehicle width direction via seat brackets. Since these are connected to each other, there is a problem that the foot space of the occupant of the rear row seat becomes narrow.

本発明の目的は、車両の車体構造において、車両の側突に対する耐力を向上させて車室内方への変形を抑制すると共に、後列シートの乗員の為の広い足元スペースを確保することである。   SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle body structure of a vehicle with improved resistance to side impacts of the vehicle to suppress deformation toward the interior of the vehicle and to secure a wide foot space for a passenger in the rear row seat.

請求項1の車両の車体構造は、車室フロアの車幅方向中央部に上方に膨出して車体前後方向に延在して形成されたフロアトンネルと、車体側面開口部の下縁部を構成するサイドシルの前後方向中間部とルーフとを上下方向に結合するピラーと、車体側面開口部からアクセス可能な前列及び後列シートとを備えた車両の車体構造において、ピラーの基部の車室フロアより上方に位置する部分とフロアトンネル上部とを車幅方向に連結し、車室フロアとの間に空間を空けて左右ピラー間に架設されるクロスメンバを設けると共に、このクロスメンバに前列シートのシートレールの後部を支持するように構成したことを特徴とする。   The vehicle body structure according to claim 1 comprises a floor tunnel formed by extending upward in the vehicle width direction central portion of the passenger compartment floor and extending in the vehicle body front-rear direction, and a lower edge portion of the vehicle body side opening. In a vehicle body structure including a pillar that vertically connects the front and rear intermediate portion of the side sill and the roof, and a front row and a rear row seat that are accessible from the side opening of the vehicle body, above the passenger compartment floor at the base of the pillar Is connected to the upper part of the floor tunnel in the vehicle width direction, and a cross member is provided between the left and right pillars with a space between the passenger compartment floor and the seat rail of the front row seat on the cross member. It is characterized by being configured to support the rear part.

この車両の車体構造では、クロスメンバが、ピラーの基部の車室フロアより上方に位置する部分とフロアトンネル上部に車幅方向に連結され、且つ車室フロアとの間に空間を空けて左右ピラー間に架設され、このクロスメンバにより前列シートのシートレールの後部が支持されている。クロスメンバをピラーの基部の車室フロアより上方位置に設けたので、車両の側突時にサイドシルよりも高い位置に側突車両のバンパーが衝突した場合にも、クロスメンバにより衝撃を効果的に受け止めて、車室内方への変形を抑制することが可能となる。   In this vehicle body structure, the cross member is connected in the vehicle width direction to a portion located above the passenger compartment floor at the base of the pillar and the upper part of the floor tunnel, and a space is provided between the passenger compartment floor and the left and right pillars. The rear part of the seat rail of the front row seat is supported by this cross member. Since the cross member is located above the passenger compartment floor at the base of the pillar, even if the bumper of a side impact vehicle collides with a position higher than the side sill at the time of the side impact of the vehicle, the cross member effectively receives the impact Thus, deformation toward the inside of the vehicle interior can be suppressed.

請求項2の車両の車体構造は、請求項1の発明において、前列シートのシートレール前部を支持し、ピラーの前方に位置するサイドシルの車室フロアより上方に位置する部分とフロアトンネル上部とを車幅方向に連結し、左右のサイドシル間に配設される追加クロスメンバを設けたことを特徴とする。   A vehicle body structure according to a second aspect of the present invention is the vehicle body structure according to the first aspect, wherein the front rail seat rail front portion is supported, a portion of the side sill located in front of the pillar is positioned above the passenger compartment floor, and the floor tunnel upper portion. Are connected in the vehicle width direction, and an additional cross member disposed between the left and right side sills is provided.

請求項3の車両の車体構造は、請求項1又は2の発明において、クロスメンバと追加クロスメンバの少なくとも一方を1本の構造体にて構成したことを特徴とする。   The vehicle body structure of the vehicle according to claim 3 is characterized in that, in the invention of claim 1 or 2, at least one of the cross member and the additional cross member is constituted by one structure.

請求項4の車両の車体構造は、請求項3の発明において、フロアトンネル上部に、クロスメンバを支持する凹部を形成したことを特徴とする。   According to a fourth aspect of the present invention, there is provided the vehicle body structure according to the third aspect, wherein a recess for supporting the cross member is formed in the upper portion of the floor tunnel.

請求項5の車両の車体構造は、請求項1又は2の発明において、クロスメンバと追加クロスメンバの少なくとも一方をフロアトンネルを挟んで設けられる2本の構造体にて構成したことを特徴とする。   The vehicle body structure of claim 5 is characterized in that, in the invention of claim 1 or 2, at least one of the cross member and the additional cross member is constituted by two structures provided with a floor tunnel interposed therebetween. .

請求項6の車両の車体構造は、請求項1〜5の何れかの発明において、クロスメンバ又は追加クロスメンバに対応する位置のフロアトンネル下部を車幅方向に連結する連結部材を設けたことを特徴とする。   The vehicle body structure according to claim 6 is the vehicle body structure according to any one of claims 1 to 5, further comprising a connecting member that connects the lower portion of the floor tunnel at a position corresponding to the cross member or the additional cross member in the vehicle width direction. Features.

請求項1の発明によれば、ピラーの基部の車室フロアより上方に位置する部分とフロアトンネル上部とを車幅方向にクロスメンバを連結したので、車室フロアより上方に設けたクロスメンバによって、車両の側突時にサイドシルよりも高い位置に側突車両のバンパーが衝突した場合に対する車幅方向の剛性強度と耐力が向上し、車室内方への変形を抑制できる。さらに、クロスメンバを車室フロアとの間に空間を空けて左右ピラー間に架設し、このクロスメンバに前列シートのシートレールの後部を支持するように構成したので、後列シートの乗員の為の広い足元スペースを確保することができる。   According to the first aspect of the present invention, since the cross member is connected in the vehicle width direction to the portion located above the passenger compartment floor of the pillar base and the upper portion of the floor tunnel, the cross member is provided above the passenger compartment floor. In the case of a side collision of the vehicle, the rigidity strength and the proof strength in the vehicle width direction when the bumper of the side collision vehicle collides with a position higher than the side sill can be improved, and the deformation toward the vehicle interior can be suppressed. In addition, the cross member is installed between the left and right pillars with a space between the passenger compartment floor and the rear member of the front row seat rail is supported by this cross member. A wide foot space can be secured.

請求項2の発明によれば、前列シートのシートレール前部を支持し、ピラーの前方に位置するサイドシルの車室フロアより上方に位置する部分とフロアトンネル上部とを車幅方向に連結し、左右のサイドシル間に配設される追加クロスメンバを設けたので、車両の側突に対する車幅方向の剛性強度と耐力が一層向上し、車室内方への変形を一層抑制できる。さらに、追加クロスメンバにより前列シートのシートレールの前部を支持し、且つクロスメンバにより前列シートのシートレールの後部を支持するので、追加クロスメンバとクロスメンバへのシートレール取付左右位置を変更することにより、前列シートの左右位置を簡単に変更することができ、前列シートの配設位置の自由度が拡大する。   According to the invention of claim 2, the seat rail front part of the front row seat is supported, and the part located above the passenger compartment floor of the side sill located in front of the pillar and the floor tunnel upper part are connected in the vehicle width direction, Since the additional cross member disposed between the left and right side sills is provided, the rigidity strength and the proof strength in the vehicle width direction against the side collision of the vehicle are further improved, and the deformation toward the vehicle interior can be further suppressed. Further, since the front portion of the seat rail of the front row seat is supported by the additional cross member and the rear portion of the seat rail of the front row seat is supported by the cross member, the left and right positions of the seat rail mounting to the additional cross member and the cross member are changed. Accordingly, the left and right positions of the front row seats can be easily changed, and the degree of freedom of the arrangement position of the front row seats is expanded.

請求項3の発明によれば、クロスメンバと追加クロスメンバの少なくとも一方を1本の構造体にて構成したので、重量を増加させることなくクロスメンバ又は追加クロスメンバの高い剛性強度を確保できると共に、これらの組付け作業が簡単化する。   According to the invention of claim 3, since at least one of the cross member and the additional cross member is constituted by one structure, high rigidity and strength of the cross member or the additional cross member can be secured without increasing the weight. These assembly operations are simplified.

請求項4の発明によれば、フロアトンネル上部に、クロスメンバを支持する凹部を形成したので、フロアトンネル上部の凹部にクロスメンバを連結することで、クロスメンバの高さ位置が高くなり過ぎるのを抑制できる。これにより、クロスメンバに対する支持剛性の向上を図りつつ、シートの高さ位置が高くなり過ぎるのを抑制できる。   According to the invention of claim 4, since the recess for supporting the cross member is formed in the upper portion of the floor tunnel, the height position of the cross member becomes too high by connecting the cross member to the recess in the upper portion of the floor tunnel. Can be suppressed. Thereby, it is possible to suppress the height position of the seat from becoming too high while improving the support rigidity with respect to the cross member.

請求項5の発明によれば、クロスメンバと追加クロスメンバの少なくとも一方をフロアトンネルを挟んで設けられる2本の構造体にて構成したので、クロスメンバ又は追加クロスメンバの高さ位置が高くなり過ぎるのを抑制できる。これにより、車高の低い車両にこの構造を適用した場合にも、シートの高さ位置の抑制を図りつつ、側突に対する耐力向上を達成することができる。   According to the invention of claim 5, since at least one of the cross member and the additional cross member is configured by the two structures provided with the floor tunnel interposed therebetween, the height position of the cross member or the additional cross member is increased. It can be suppressed. As a result, even when this structure is applied to a vehicle having a low vehicle height, it is possible to achieve an improvement in yield strength against side collisions while suppressing the height position of the seat.

請求項6の発明によれば、クロスメンバ又は追加クロスメンバに対応する位置のフロアトンネル下部を車幅方向に連結する連結部材を設けたので、車両の側突時にフロアトンネル下部が車幅方向外側に開くのを抑制でき、車室フロアの変形を抑制できる。   According to the invention of claim 6, since the connecting member for connecting the floor tunnel lower portion at a position corresponding to the cross member or the additional cross member in the vehicle width direction is provided, the floor tunnel lower portion is located outside in the vehicle width direction at the time of a side collision of the vehicle. Can be suppressed, and deformation of the passenger compartment floor can be suppressed.

本発明の車両の車体構造は、ピラーの基部の車室フロアより上方に位置する部分とフロアトンネル上部とを車幅方向に連結し、車室フロアとの間に空間を空けて左右ピラー間に架設されるクロスメンバを設けると共に、このクロスメンバに前列シートのシートレールの後部を支持するように構成したものである。   In the vehicle body structure of the present invention, a portion of the pillar base located above the passenger compartment floor and the upper portion of the floor tunnel are connected in the vehicle width direction, and a space is provided between the passenger compartment floor and between the left and right pillars. A cross member to be installed is provided, and the rear member of the seat rail of the front row seat is supported by the cross member.

以下、本発明の実施例について図面に基づいて説明する。
図1〜図4に示すように、自動車1の車体には、車室フロア2の車幅方向中央部に上方に膨出し且つ車体前後方向に延在して形成されたフロアトンネル3と、車体側面開口部8,9の下縁部を構成するサイドシル5と、サイドシル5の前後方向中間部とルーフ(図示略)とを上下方向に結合するセンターピラー6と、車室フロア2との間に空間を空けて左右のセンターピラー6間に架設されるクロスメンバ20と、クロスメンバ20よりも前側に設けられ且つ左右のサイドシル5間に架設される追加クロスメンバ25と、車体側面開口部8,9からアクセス可能な2つの前列シート10A,10B及び複数の後列シート(図示略)等が設けられている。
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 4, the vehicle body of the automobile 1 includes a floor tunnel 3 that is formed to bulge upward in the vehicle width direction central portion of the passenger compartment floor 2 and extend in the vehicle longitudinal direction, Between the side sill 5 that constitutes the lower edge of the side openings 8 and 9, the center pillar 6 that connects the front and rear intermediate portion of the side sill 5 and the roof (not shown) in the vertical direction, and the vehicle interior floor 2. A cross member 20 provided between the left and right center pillars 6 with a space therebetween, an additional cross member 25 provided in front of the cross member 20 and provided between the left and right side sills 5, a vehicle body side surface opening 8, 9, two front row sheets 10A, 10B accessible from 9 and a plurality of rear row sheets (not shown) are provided.

自動車の車体下部には車室フロア2が設けられ、車室フロア2の車幅方向中央部には、排気管15(図3、図4参照)などが配設されるフロアトンネル3が膨出状に車体前後方向に延びるように形成され、フロアトンネル3は上壁部3aとこれに連なる左右の側壁部3bから構成されている。   A vehicle compartment floor 2 is provided at the lower part of the body of the automobile, and a floor tunnel 3 in which an exhaust pipe 15 (see FIGS. 3 and 4) and the like are provided bulges in the vehicle width direction center of the vehicle compartment floor 2. The floor tunnel 3 includes an upper wall portion 3a and left and right side wall portions 3b connected to the upper wall portion 3a.

フロアトンネル3の左右両側方の車室フロア2の部分には略水平なフロントフロアのサイド4が形成され、車室フロア2の両端部には、前後方向に延びる左右1対のサイドシル5が接合されている。サイドシル5の前後方向中間部には、ルーフの左右両端部に設けたルーフレール7まで延びる左右1対のセンターピラー6が接合され、車体左部におけるサイドシル5とルーフレール7とセンターピラー6とフロントピラー12及びリヤピラー13とで区画される位置には、前後に車体側面開口部8,9が形成されている。   A substantially horizontal front floor side 4 is formed on the left and right sides of the floor tunnel 3 in the passenger compartment floor 2, and a pair of left and right side sills 5 extending in the front-rear direction are joined to both ends of the passenger compartment floor 2. Has been. A pair of left and right center pillars 6 extending to the roof rails 7 provided at the left and right ends of the roof are joined to an intermediate portion in the front-rear direction of the side sill 5, and the side sill 5, the roof rail 7, the center pillar 6, and the front pillar 12 on the left side of the vehicle body. Further, vehicle body side surface openings 8 and 9 are formed in front and rear at positions partitioned by the rear pillar 13.

図1に示すように、左右のセンターピラー6の基部の車室フロア2より上方に位置する部分には、クロスメンバ20が車室フロア2との間に空間を空けて架設されている。クロスメンバ20は、1本の角筒状の構造体にて車幅方向に延びる閉断面構造に構成され、車両の側突時に側方から加わる衝撃を受け止め可能なサイズ、形状に構成されている。クロスメンバ20の左右両端部は、左右のセンターピラー6の基部の車室フロア2より上方に位置する部分に溶接にて接合され、クロスメンバ20の車幅方向中央部は、フロアトンネル3の上壁部3aの上面に溶接にて接合されている。   As shown in FIG. 1, a cross member 20 is installed between the vehicle floor 2 and a portion located above the vehicle floor 2 at the base of the left and right center pillars 6. The cross member 20 is configured to have a closed cross-sectional structure extending in the vehicle width direction by a single rectangular tube-shaped structure, and is configured to have a size and shape that can receive an impact applied from the side when the vehicle is side impacted. . The left and right end portions of the cross member 20 are joined by welding to a portion of the base portion of the left and right center pillars 6 positioned above the passenger compartment floor 2, and the center portion in the vehicle width direction of the cross member 20 is above the floor tunnel 3. It is joined to the upper surface of the wall 3a by welding.

図2に示すように、左右のセンターピラー6の前方に位置する左右のサイドシル5の車室フロア2より上方に位置する部分には、追加クロスメンバ25が車室フロア2との間に空間を空けて架設されている。追加クロスメンバ25は、1本の角筒状の構造体にて車幅方向に延びる閉断面構造に構成され、車両の側突時に側方から加わる衝撃を受け止め可能なサイズ、形状に構成されている。追加クロスメンバ25の左右両端部は、センターピラー6の前方に位置するサイドシル5の車室フロア2より上方に位置する部分に溶接にて接合され、追加クロスメンバ25の車幅方向中央部は、フロアトンネル3の上壁部3aの上面に溶接にて接合されている。   As shown in FIG. 2, an additional cross member 25 is provided between the passenger compartment floor 2 and a portion of the left and right side sill 5 positioned in front of the left and right center pillars 6 above the passenger compartment floor 2. It is erected in the sky. The additional cross member 25 has a closed cross-sectional structure that extends in the vehicle width direction with a single rectangular tube-shaped structure, and is configured to have a size and shape that can receive an impact applied from the side during a side collision of the vehicle. Yes. The left and right end portions of the additional cross member 25 are joined by welding to a portion of the side sill 5 positioned in front of the center pillar 6 and positioned above the passenger compartment floor 2, and the center portion in the vehicle width direction of the additional cross member 25 is The upper surface of the upper wall 3a of the floor tunnel 3 is joined by welding.

各前列シート10A,10Bの下端部における左右両端部には、前列シート10A,10Bを前後方向に移動可能に支持する1対のシートレール11が夫々連結され、これらのシートレール11の後部は、クロスメンバ20に固定支持され、且つシートレール11の前部は追加クロスメンバ25に固定支持されている。   A pair of seat rails 11 that support the front row seats 10A and 10B so as to be movable in the front-rear direction are respectively connected to the left and right ends of the lower end portions of the front row seats 10A and 10B. The cross member 20 is fixedly supported, and the front portion of the seat rail 11 is fixedly supported by the additional cross member 25.

図1、図2に示すように、クロスメンバ20の左右端部と車幅方向中央部には、4つのシートブラケット21がボルトでもって連結され、これらのシートブラケット21を介してシートレール11の後端部がクロスメンバ20に固定支持されている。同様に、追加クロスメンバ25の左右端部と車幅方向中央部には、4つのシートブラケット26がボルトでもって連結され、これらのシートブラケット26を介してシートレール11の前端部が追加クロスメンバ25に固定支持されている。   As shown in FIGS. 1 and 2, four seat brackets 21 are connected with bolts to the left and right end portions of the cross member 20 and the center portion in the vehicle width direction, and the seat rails 11 are connected via the seat brackets 21. The rear end portion is fixedly supported by the cross member 20. Similarly, four seat brackets 26 are connected by bolts to the left and right end portions of the additional cross member 25 and the center portion in the vehicle width direction, and the front end portion of the seat rail 11 is connected to the additional cross member via these seat brackets 26. 25 is fixedly supported.

次に、車両の車体構造の作用、効果について説明する。
この車両の車体構造では、クロスメンバ20が、1本の角筒状の構造体にて車幅方向に延びる閉断面構造に構成され、このクロスメンバ20が、センターピラー6の基部の車室フロア2より上方に位置する部分とフロアトンネル3の上壁部3aの上面に車幅方向に連結され、車室フロア2との間に空間を空けて左右のセンターピラー6間に架設されている。
Next, the operation and effect of the vehicle body structure will be described.
In the vehicle body structure of this vehicle, the cross member 20 is configured to have a closed cross-sectional structure extending in the vehicle width direction by a single rectangular tube-shaped structure, and the cross member 20 is formed in the vehicle compartment floor at the base of the center pillar 6. 2 and the upper surface of the upper wall portion 3a of the floor tunnel 3 are connected in the vehicle width direction, and are installed between the left and right center pillars 6 with a space between them.

同様に、追加クロスメンバ25が、1本の角筒状の構造体にて車幅方向に延びる閉断面構造に構成され、この追加クロスメンバ25が、センターピラー6の前方に位置するサイドシル5の車室フロア2より上方に位置する部分とフロアトンネル3の上壁部3aの上面に車幅方向に連結され、車室フロア2との間に空間を空けて左右のサイドシル5間に架設されている。また、クロスメンバ20により前列シート10A,10Bのシートレール11の後部が固定支持されると共に、追加クロスメンバ25により前列シート10A,10Bのシートレール11の前部が固定支持されている。   Similarly, the additional cross member 25 is configured to have a closed cross-sectional structure extending in the vehicle width direction by a single rectangular tube-shaped structure, and the additional cross member 25 is formed on the side sill 5 positioned in front of the center pillar 6. A portion located above the passenger compartment floor 2 and the upper surface of the upper wall 3a of the floor tunnel 3 are connected in the vehicle width direction, and are installed between the left and right side sills 5 with a space between the passenger compartment floor 2 and the vehicle interior floor 2. Yes. Further, the rear portions of the seat rails 11 of the front row seats 10A and 10B are fixed and supported by the cross member 20, and the front portions of the seat rails 11 of the front row seats 10A and 10B are fixed and supported by the additional cross member 25.

このように、センターピラー6の基部の車室フロア2より上方に位置する部分とフロアトンネル3の上壁部3aの上面とを車幅方向にクロスメンバ20を連結したので、車室フロア2より上方に設けたクロスメンバ20によって、車両の側突時にサイドシル5よりも高い位置に側突車両のバンパーが衝突した場合に対する車幅方向の剛性強度と耐力が向上し、車室内方への変形を抑制できる。さらに、クロスメンバ20を車室フロア2との間に空間を空けて左右のセンターピラー6間に架設し、このクロスメンバ20に前列シート10A,10Bのシートレール11の後部を固定支持するように構成したので、後列シートの乗員の為の広い足元スペースを確保することができる。   In this way, the cross member 20 is connected in the vehicle width direction between the portion of the center pillar 6 located above the passenger compartment floor 2 and the upper surface of the upper wall portion 3a of the floor tunnel 3, so that the passenger compartment floor 2 The cross member 20 provided on the upper side improves the rigidity and proof strength in the vehicle width direction when the bumper of the side collision vehicle collides at a position higher than the side sill 5 at the time of the side collision of the vehicle. Can be suppressed. Further, the cross member 20 is installed between the left and right center pillars 6 with a space between the passenger compartment floor 2 and the rear portions of the seat rails 11 of the front row seats 10A and 10B are fixedly supported on the cross member 20. Since it comprised, the wide foot space for the passenger | crew of a back row seat can be ensured.

前列シート10A,10Bのシートレール11の前部を固定支持し、センターピラー6の前方に位置するサイドシル5の車室フロア2より上方に位置する部分とフロアトンネル3の上壁部3aの上面とを車幅方向に連結し、左右のサイドシル5間に架設される追加クロスメンバ25を設けたので、車両の側突に対する車幅方向の剛性強度と耐力が一層向上し、車室内方への変形を一層抑制できる。   The front portions of the seat rails 11 of the front row seats 10A and 10B are fixedly supported, a portion of the side sill 5 positioned in front of the center pillar 6 and positioned above the passenger compartment floor 2 and an upper surface of the upper wall portion 3a of the floor tunnel 3 Are connected in the vehicle width direction, and an additional cross member 25 is provided between the left and right side sills 5, so that the rigidity strength and the proof strength in the vehicle width direction against the side collision of the vehicle are further improved, and the deformation to the inside of the vehicle interior is achieved. Can be further suppressed.

さらに、追加クロスメンバ25により前列シート10A,10Bのシートレール11の前部を固定支持し、且つクロスメンバ20により前列シート10A,10Bのシートレール11の後部を固定支持するので、追加クロスメンバ25とクロスメンバ20へのシートレール取付左右位置を変更することにより、前列シート10A,10Bの左右位置を簡単に変更することができ、前列シート10A,10Bの配設位置の自由度が拡大する。クロスメンバ20と追加クロスメンバ25を1本の構造体にて構成したので、重量を増加させることなくクロスメンバ20と追加クロスメンバ25の高い剛性強度を確保できると共に、これらの組付け作業が簡単化する。   Further, since the front portion of the seat rail 11 of the front row seats 10A and 10B is fixed and supported by the additional cross member 25 and the rear portion of the seat rail 11 of the front row seats 10A and 10B is fixed and supported by the cross member 20, the additional cross member 25 By changing the left and right positions of the seat rail attachment to the cross member 20, the left and right positions of the front row seats 10A and 10B can be easily changed, and the degree of freedom of the arrangement positions of the front row seats 10A and 10B is expanded. Since the cross member 20 and the additional cross member 25 are constituted by a single structure, high rigidity and strength of the cross member 20 and the additional cross member 25 can be secured without increasing the weight, and the assembling work thereof is easy. Turn into.

次に、実施例2に係る車両の車体構造について、図3、図4に基づいて説明する。但し、前記実施例と同一の構成には同一の符号を付し、異なる構成についてのみ説明する。
この車両の車体構造においては、フロアトンネル3の上部にクロスメンバ20を支持する凹部3cを形成したものである。
Next, a vehicle body structure according to the second embodiment will be described with reference to FIGS. However, the same reference numerals are given to the same components as those in the above embodiment, and only different components will be described.
In the vehicle body structure of this vehicle, a recess 3 c that supports the cross member 20 is formed in the upper part of the floor tunnel 3.

フロアトンネル3の上壁部3aにおける左右のセンターピラー6が位置する部分には凹部3cが形成され、この凹部3cにクロスメンバ20の車幅方向中央部が溶接にて接合されている。クロスメンバ20の左右両端部は、左右のセンターピラー6の基部の車室フロア2より上方に位置する部分に溶接にて接合されており、このクロスメンバ20が車室フロア2との間に空間を空けて架設されている。尚、図3、図4においては、前列シート10A,10Bの前側に追加クロスメンバが図示されていないが、前記実施例1と同様の構造であるものとする。   A concave portion 3c is formed in a portion of the upper wall portion 3a of the floor tunnel 3 where the left and right center pillars 6 are located, and a central portion in the vehicle width direction of the cross member 20 is joined to the concave portion 3c by welding. The left and right end portions of the cross member 20 are joined by welding to a portion of the base portion of the left and right center pillars 6 positioned above the passenger compartment floor 2, and the cross member 20 is spaced from the passenger compartment floor 2. It is built with a gap. 3 and 4, the additional cross member is not shown on the front side of the front row sheets 10 </ b> A and 10 </ b> B, but has the same structure as that of the first embodiment.

このように、フロアトンネル3の上壁部3aに、クロスメンバ20を支持する凹部3cを形成したので、フロアトンネル3の凹部3cにクロスメンバ20を連結することで、クロスメンバ20の高さ位置が高くなり過ぎるのを抑制できる。これにより、クロスメンバ20に対する支持剛性の向上を図りつつ、前列シート10A,10Bの高さ位置が高くなり過ぎるのを抑制できる。   Thus, since the recess 3c for supporting the cross member 20 is formed in the upper wall portion 3a of the floor tunnel 3, the cross member 20 is connected to the recess 3c of the floor tunnel 3 so that the height position of the cross member 20 is increased. Can be suppressed from becoming too high. Thereby, it is possible to suppress the height positions of the front row seats 10A and 10B from becoming too high while improving the support rigidity with respect to the cross member 20.

次に、実施例3に係る車両の車体構造について、図5、図6に基づいて説明する。但し、前記実施例と同一の構成には同一の符号を付し、異なる構成についてのみ説明する。
この車両の車体構造においては、クロスメンバ20Aをフロアトンネル3を挟んで設けられる2本の構造体にて構成し、且つクロスメンバ20Aに対応する位置のフロアトンネル3の下部を車幅方向に連結する連結部材22を設けたものである。
Next, a vehicle body structure according to a third embodiment will be described with reference to FIGS. However, the same reference numerals are given to the same components as those in the above embodiment, and only different components will be described.
In this vehicle body structure, the cross member 20A is constituted by two structures provided with the floor tunnel 3 interposed therebetween, and the lower part of the floor tunnel 3 at a position corresponding to the cross member 20A is connected in the vehicle width direction. The connecting member 22 is provided.

クロスメンバ20Aは車幅方向に延びる閉断面構造を有する2本の構造体で構成され、クロスメンバ20Aの車幅方向内端部は、フロアトンネル3の側壁部3bの上端近傍部と同じ形状に夫々形成されている。クロスメンバ20Aの車幅方向外端部は、左右のセンターピラー6の基部の車室フロア2より上方に位置する部分に溶接にて夫々接合され、クロスメンバ20Aの車幅方向内端部は、フロアトンネル3の側壁部3bの上端近傍部に溶接にて夫々接合されており、2本の構造体にて構成されるクロスメンバ20Aが車室フロア2との間に空間を空けて架設されている。   The cross member 20A is composed of two structures having a closed cross-sectional structure extending in the vehicle width direction, and the inner end of the cross member 20A in the vehicle width direction has the same shape as the vicinity of the upper end of the side wall 3b of the floor tunnel 3 Each is formed. The outer end in the vehicle width direction of the cross member 20A is joined by welding to the portion of the base of the left and right center pillars 6 positioned above the vehicle compartment floor 2, and the inner end in the vehicle width direction of the cross member 20A is A cross member 20A composed of two structures is joined to the vicinity of the upper end of the side wall 3b of the floor tunnel 3 by welding, and is spanned between the passenger compartment floor 2 and a space. Yes.

クロスメンバ20Aに対応する位置において、フロントフロアのサイド4の車幅方向内端部の下面には、フロアトンネル3の下側を横断状に跨ぐパイプ状の連結部材22が2本のボルト22aでもって連結されている。この連結部材22は、中央部分を下方に折曲させた形状に形成され、これにより、クロスメンバ20Aに対応する位置のフロアトンネル3の下部の剛性強度を高めている。尚、図5、図6においては、前列シート10A,10Bの前側に追加クロスメンバが図示されていないが、前記実施例1と同様の構造であるものとする。   At a position corresponding to the cross member 20A, a pipe-shaped connecting member 22 that crosses the lower side of the floor tunnel 3 across the lower side of the floor tunnel 3 is formed by two bolts 22a on the lower surface of the inner end of the side 4 of the front floor. It is connected. The connecting member 22 is formed in a shape in which the central portion is bent downward, thereby increasing the rigidity strength of the lower portion of the floor tunnel 3 at a position corresponding to the cross member 20A. 5 and 6, the additional cross member is not shown on the front side of the front row sheets 10 </ b> A and 10 </ b> B, but has the same structure as that of the first embodiment.

このように、クロスメンバ20Aをフロアトンネル3を挟んで設けられる2本の構造体にて構成したので、クロスメンバ20Aの高さ位置が高くなり過ぎるのを抑制できる。これにより、車高の低い車両にこの構造を適用した場合にも、前列シート10A,10Bの高さ位置の抑制を図りつつ、側突に対する耐力向上を達成することができる。さらに、クロスメンバ20Aに対応する位置のフロアトンネル3の下部を車幅方向に連結する連結部材22を設けたので、車両の側突時にフロアトンネル3の下部が車幅方向外側に開くのを抑制でき、車室フロア2の変形を抑制できる。   Thus, since the cross member 20A is configured by the two structures provided with the floor tunnel 3 interposed therebetween, it is possible to suppress the height position of the cross member 20A from becoming too high. Thereby, even when this structure is applied to a vehicle having a low vehicle height, it is possible to achieve an improvement in yield strength against side collisions while suppressing the height positions of the front seats 10A and 10B. Further, since the connecting member 22 for connecting the lower part of the floor tunnel 3 at a position corresponding to the cross member 20A in the vehicle width direction is provided, it is possible to prevent the lower part of the floor tunnel 3 from opening outward in the vehicle width direction when the vehicle collides. The deformation of the passenger compartment floor 2 can be suppressed.

次に、前記実施例を部分的に変更した変更例について説明する。
1]実施例1〜3における追加クロスメンバ25の組付構造を、実施例2のクロスメンバ20の組付構造と同様の構造であってもよいし、また、実施例3のクロスメンバ20Aの組付構造と同様の構造であってもよい。
2]実施例1,2においても実施例3と同様に、クロスメンバ20に対応する位置のフロアトンネル3の下部に連結部材22を設けてもよい。また、実施例1〜3において、追加クロスメンバ25に対応する位置のフロアトンネル3の下部に連結部材22を設けてもよい。
3]実施例1〜3における追加クロスメンバ25は、クロスメンバ20のように後列シートの乗員の為の足元スペースを確保する必要はないので、必ずしも車室フロア2との間に空間を設ける必要はなく、この部分を追加クロスメンバで埋めるような構造とすることもできる。
4]その他、当業者であれば、本発明の趣旨を逸脱することなく、前記実施例に種々の変更を付加した形態で実施可能で、本発明はそのような変更形態も包含するものである。
Next, a modified example in which the above embodiment is partially modified will be described.
1] The assembly structure of the additional cross member 25 in the first to third embodiments may be the same as the assembly structure of the cross member 20 in the second embodiment, or the cross member 20A in the third embodiment. A structure similar to the assembly structure may be used.
2] In the first and second embodiments, similarly to the third embodiment, the connecting member 22 may be provided below the floor tunnel 3 at a position corresponding to the cross member 20. In the first to third embodiments, the connecting member 22 may be provided below the floor tunnel 3 at a position corresponding to the additional cross member 25.
3] Since the additional cross member 25 in the first to third embodiments does not need to secure a foot space for the rear row seat occupant unlike the cross member 20, it is not always necessary to provide a space between the passenger compartment floor 2. However, this structure can be filled with an additional cross member.
4] In addition, those skilled in the art can implement the present invention by adding various modifications to the embodiments without departing from the spirit of the present invention, and the present invention includes such modifications. .

本発明の実施例1に係る車両の車体構造の後方から視た斜視図である。It is the perspective view seen from the back of the vehicle body structure of vehicles concerning Example 1 of the present invention. 車両の車体構造の斜視図である。It is a perspective view of the vehicle body structure of a vehicle. 実施例2における車両の車体構造の後方から視た要部の斜視図である。It is a perspective view of the principal part seen from the back of the vehicle body structure of the vehicle in Example 2. FIG. 図3のIV−IV線断面図である。It is the IV-IV sectional view taken on the line of FIG. 実施例3における車両の車体構造の後方から視た要部の斜視図である。It is a perspective view of the principal part seen from the back of the vehicle body structure of vehicles in Example 3. 実施例3における車両の車体構造の要部の背面図である。FIG. 10 is a rear view of a main part of a vehicle body structure of a vehicle in a third embodiment.

符号の説明Explanation of symbols

3 フロアトンネル
3c 凹部
6 センターピラー
10A,10B 前列シート
20,20A クロスメンバ
22 連結部材
25 追加クロスメンバ
3 Floor tunnel 3c Recess 6 Center pillar 10A, 10B Front row seat 20, 20A Cross member 22 Connecting member 25 Additional cross member

Claims (6)

車室フロアの車幅方向中央部に上方に膨出して車体前後方向に延在して形成されたフロアトンネルと、車体側面開口部の下縁部を構成するサイドシルの前後方向中間部とルーフとを上下方向に結合するピラーと、前記車体側面開口部からアクセス可能な前列及び後列シートとを備えた車両の車体構造において、
前記ピラーの基部の車室フロアより上方に位置する部分と前記フロアトンネル上部とを車幅方向に連結し、車室フロアとの間に空間を空けて左右ピラー間に架設されるクロスメンバを設けると共に、このクロスメンバに前列シートのシートレールの後部を支持するように構成したことを特徴とする車両の車体構造。
A floor tunnel formed by bulging upward in the vehicle width direction center of the passenger compartment floor and extending in the longitudinal direction of the vehicle body, an intermediate portion in the longitudinal direction of the side sill constituting the lower edge of the vehicle body side opening, and a roof In a vehicle body structure of a vehicle comprising a pillar that vertically couples, and a front row and a rear row seat that are accessible from the vehicle body side opening,
A portion located above the passenger compartment floor at the base of the pillar and the upper portion of the floor tunnel are connected in the vehicle width direction, and a cross member is provided between the left and right pillars with a space between the passenger compartment floor. A vehicle body structure for a vehicle, wherein the cross member is configured to support a rear portion of a seat rail of a front row seat.
前記前列シートのシートレール前部を支持し、前記ピラーの前方に位置するサイドシルの車室フロアより上方に位置する部分とフロアトンネル上部とを車幅方向に連結し、左右のサイドシル間に配設される追加クロスメンバを設けたことを特徴とする請求項1に記載の車両の車体構造。   The front row seat rail front portion is supported, and the portion of the side sill located in front of the pillar and located above the passenger compartment floor is connected to the upper portion of the floor tunnel in the vehicle width direction and disposed between the left and right side sills. The vehicle body structure according to claim 1, further comprising an additional cross member. 前記クロスメンバと追加クロスメンバの少なくとも一方を1本の構造体にて構成したことを特徴とする請求項1又は2に記載の車両の車体構造。   The vehicle body structure according to claim 1, wherein at least one of the cross member and the additional cross member is configured by a single structure. 前記フロアトンネル上部に、クロスメンバを支持する凹部を形成したことを特徴とする請求項3に記載の車両の車体構造。   The vehicle body structure according to claim 3, wherein a recess for supporting the cross member is formed in the upper part of the floor tunnel. 前記クロスメンバと追加クロスメンバの少なくとも一方をフロアトンネルを挟んで設けられる2本の構造体にて構成したことを特徴とする請求項1又は2に記載の車両の車体構造。   The vehicle body structure according to claim 1 or 2, wherein at least one of the cross member and the additional cross member is configured by two structures provided with a floor tunnel interposed therebetween. 前記クロスメンバ又は追加クロスメンバに対応する位置のフロアトンネル下部を車幅方向に連結する連結部材を設けたことを特徴とする請求項1〜5の何れかに記載の車両の車体構造。   The vehicle body structure according to any one of claims 1 to 5, further comprising a connecting member that connects a lower portion of the floor tunnel at a position corresponding to the cross member or the additional cross member in the vehicle width direction.
JP2007177272A 2007-07-05 2007-07-05 Body structure for vehicle Pending JP2009012634A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102030042A (en) * 2010-12-16 2011-04-27 力帆实业(集团)股份有限公司 Mechanism for preventing side collision of automobile
CN102039867A (en) * 2010-12-16 2011-05-04 力帆实业(集团)股份有限公司 Automobile B-pillar guard plate
JP2011183893A (en) * 2010-03-05 2011-09-22 Honda Motor Co Ltd Vehicle body floor structure
JP2015157595A (en) * 2014-02-25 2015-09-03 本田技研工業株式会社 Automobile body structure of automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011183893A (en) * 2010-03-05 2011-09-22 Honda Motor Co Ltd Vehicle body floor structure
CN102030042A (en) * 2010-12-16 2011-04-27 力帆实业(集团)股份有限公司 Mechanism for preventing side collision of automobile
CN102039867A (en) * 2010-12-16 2011-05-04 力帆实业(集团)股份有限公司 Automobile B-pillar guard plate
JP2015157595A (en) * 2014-02-25 2015-09-03 本田技研工業株式会社 Automobile body structure of automobile

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