JP6274431B2 - Undercarriage of the vehicle - Google Patents

Undercarriage of the vehicle Download PDF

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JP6274431B2
JP6274431B2 JP2014122285A JP2014122285A JP6274431B2 JP 6274431 B2 JP6274431 B2 JP 6274431B2 JP 2014122285 A JP2014122285 A JP 2014122285A JP 2014122285 A JP2014122285 A JP 2014122285A JP 6274431 B2 JP6274431 B2 JP 6274431B2
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vehicle
fuel tank
canister
cross member
stay
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JP2016002786A (en
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光博 岡部
光博 岡部
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Suzuki Motor Co Ltd
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Suzuki Motor Co Ltd
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  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Body Structure For Vehicles (AREA)

Description

この発明は車両の下部構造に係り、特に、車両の後方から作用する衝撃力からキャニスタを保護することができる車両の下部構造に関する。   The present invention relates to a vehicle lower structure, and more particularly to a vehicle lower structure capable of protecting a canister from an impact force acting from the rear of the vehicle.

車両においては、フロアパネルの下方に燃料タンクを搭載する下部構造とするのが一般的である。燃料タンクは、車両前後方向に延びる左右一対のサイドメンバや、一対のサイドメンバ間に掛け渡されるクロスメンバに取り付けられる。また、燃料タンクの近くには、燃料タンクで発生した蒸発燃料を吸着するキャニスタを配置している。
従来の車両の下部構造には、フロアパネル下方のサイドメンバ及びクロスメンバの内側に、燃料タンクの蒸発燃料を吸着するキャニスタを配置した構造がある。（特許文献１）また、従来の車両の下部構造には、燃料タンクとスペアタイヤハウスの間のフロアパネル下方でサイドメンバを一対のクロスメンバで連結し、この一対のクロスメンバの間でフロアパネルの下方に燃料タンクの蒸発燃料を吸着するキャニスタを配置した構造がある。（特許文献２） In a vehicle, a lower structure in which a fuel tank is mounted below a floor panel is generally used. The fuel tank is attached to a pair of left and right side members extending in the longitudinal direction of the vehicle and a cross member spanned between the pair of side members. A canister that adsorbs the evaporated fuel generated in the fuel tank is disposed near the fuel tank.
As a conventional vehicle lower structure, there is a structure in which a canister that adsorbs fuel vapor in a fuel tank is disposed inside a side member and a cross member below a floor panel. (Patent Document 1) Further, in a conventional vehicle lower structure, a side member is connected by a pair of cross members below a floor panel between a fuel tank and a spare tire house, and a floor panel is connected between the pair of cross members. There is a structure in which a canister for adsorbing the evaporated fuel in the fuel tank is disposed below the bottom. (Patent Document 2)

特開２００５−１５３８５９号公報JP 2005-153859 A 特開２０１０−３６８４３号公報JP 2010-36843 A

ところが、従来の車両の下部構造では、車両後方から作用する衝撃力により後側のクロスメンバが前方へ移動した場合、このクロスメンバによって押された燃料タンクが前方に移動して、キャニスタが前側のクロスメンバに接触するおそれがある。衝撃力によるキャニスタの接触防止には、部材を追加して剛性を高めた構造を採用することで可能であるが、車体の構造が複雑化するおそれがある。   However, in the conventional vehicle lower structure, when the rear cross member moves forward due to the impact force acting from the rear of the vehicle, the fuel tank pushed by the cross member moves forward, and the canister moves forward. There is a risk of contact with the cross member. The canister can be prevented from being contacted by an impact force by adopting a structure in which rigidity is increased by adding members, but the structure of the vehicle body may be complicated.

この発明は、車体の構造を複雑化させずに、車両後方からの衝撃力からキャニスタを保護することを目的とする。   An object of the present invention is to protect a canister from an impact force from the rear of the vehicle without complicating the structure of the vehicle body.

この発明は、車両のフロアパネルの下方に配置され車両前後方向に延びる左右一対のサイドメンバと、前記一対のサイドメンバ間に掛け渡される前後一対のクロスメンバと、前記一対のサイドメンバ間であり前記一対のクロスメンバ間に配置される燃料タンクと、前記一対のクロスメンバに夫々設けられる前側ステー及び後側ステーと、長手方向両端部が前記前側ステー及び後側ステーにそれぞれ連結されるとともに、車両下方から前記燃料タンクを支持するタンクベルトと、前記燃料タンクの側方に配置されるキャニスタと、を有する車両の下部構造において、車両の平面視で、前記燃料タンクは、この燃料タンクの前側角部に、斜め後方かつ車両の外側へ延びる傾斜壁を有し、前記キャニスタは、前記サイドメンバと前記クロスメンバと前記傾斜壁とに囲まれる空間に配置され、かつ前記傾斜壁に取り付けられ、前記前側ステーを前記クロスメンバから車両後方に突出させ、かつ車両幅方向で前記キャニスタに近接する位置に配置し、前記前側ステーと前記燃料タンクの前面部との隙間を前記キャニスタと前記クロスメンバとの隙間より小さくしたことを特徴とする。   The present invention includes a pair of left and right side members disposed below a vehicle floor panel and extending in the vehicle front-rear direction, a pair of front and rear cross members spanned between the pair of side members, and the pair of side members. A fuel tank disposed between the pair of cross members, a front stay and a rear stay provided on the pair of cross members, respectively, and both longitudinal ends thereof are connected to the front stay and the rear stay, respectively. In a lower structure of a vehicle having a tank belt that supports the fuel tank from the lower side of the vehicle and a canister disposed on a side of the fuel tank, the fuel tank is a front side of the fuel tank in a plan view of the vehicle. The corner has an inclined wall extending obliquely rearward and outward of the vehicle, and the canister includes the side member and the cross member. Arranged in a space surrounded by the inclined wall, and attached to the inclined wall, the front stay protruding from the cross member toward the rear of the vehicle, and arranged at a position close to the canister in the vehicle width direction, The gap between the front stay and the front portion of the fuel tank is smaller than the gap between the canister and the cross member.

この発明は、キャニスタを、サイドメンバとクロスメンバと燃料タンクの傾斜壁との間に配置し、傾斜壁に取り付けたため、車両後方より衝撃を受けた際に、剛性の高いクロスメンバとサイドメンバによりキャニスタを保護できる。
この発明は、前側ステーをクロスメンバから車両後方に突出させ、かつ車両幅方向でキャニスタに近接する位置に配置し、前側ステーを燃料タンクの前面部に近づけたので、車両後方からの衝撃力により燃料タンクが車両前方ヘ移動した場合、前側ステーが燃料タンクと接触して燃料タンクの車両前方への移動を阻止するため、キャニスタをクロスメンバとの衝突から保護できる。
また、この発明は、タンクベルトを固定する前側ステーを利用して、燃料タンクの前方への移動を阻止するため、車両の構造が複雑化することがない。 In the present invention, the canister is disposed between the side member, the cross member, and the inclined wall of the fuel tank, and is attached to the inclined wall. Canister can be protected.
In this invention, the front stay protrudes from the cross member toward the rear of the vehicle and is disposed at a position close to the canister in the vehicle width direction, and the front stay is brought closer to the front portion of the fuel tank. When the fuel tank moves to the front side of the vehicle, the front side stays in contact with the fuel tank and prevents the fuel tank from moving forward of the vehicle, so that the canister can be protected from collision with the cross member.
Further, according to the present invention, since the forward stay of the fuel tank is prevented using the front stay for fixing the tank belt, the structure of the vehicle is not complicated.

図１は車両の下面図である。（実施例）FIG. 1 is a bottom view of the vehicle. (Example) 図２は車両後部の上面図である。（実施例）FIG. 2 is a top view of the rear portion of the vehicle. (Example) 図３は車両後部の下面図である。（実施例）FIG. 3 is a bottom view of the rear portion of the vehicle. (Example) 図４はキャニスタを取り付けた燃料タンクの側面図である。（実施例）FIG. 4 is a side view of the fuel tank to which the canister is attached. (Example) 図５はキャニスタを取り付けた燃料タンクの斜視図である。（実施例）FIG. 5 is a perspective view of a fuel tank to which a canister is attached. (Example)

以下、図面に基づいて、この発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１〜図５は、この発明の実施例を示すものである。図１において、車両１は、フロアパネル２の下方に、車両前後方向に延びる左右一対の右サイドメンバ３及び左サイドメンバ４を配置している。右サイドメンバ３及び左サイドメンバ４は、車両前後方向前端をフロアパネル２の前端から前方に突出させて配置し、車両前後方向後端をフロアパネル２の車両前後方向後端に一致させて配置している。
右サイドメンバ３及び左サイドメンバ４の間には、フロアパネル２から前方に突出された車両前後方向前端に前部クロスメンバ５を掛け渡し、フロアパネル２の前端が接する部分にサブフレーム６を掛け渡している。また、右サイドメンバ３及び左サイドメンバ４の間には、車両後方に前後一対の前側クロスメンバ７及び後側クロスメンバ８を掛け渡している。右サイドメンバ３と左サイドメンバ４とは、図４に示すように、前側クロスメンバ７と接続した部分で折曲して車両後方へ向かい傾め上方に延び、後側クロスメンバ８と接続した部分で折曲して車両後方へ向かい略水平に延びている。フロアパネル２は、前側クロスメンバ７と接する部分で折曲して略垂直上方に延びた後、後側クロスメンバ８と同じ高さで折曲して車両後方へ向かい略水平に延びている。
前部クロスメンバ５とサブフレーム６との間の右サイドメンバ３及び左サイドメンバ４間には、エンジンルーム９が形成されている。サブフレーム６と前側クロスメンバ７との間のフロアパネル２には、車両幅方向両側縁に車両前後方向に延びる左右一対の右サイドシル１０及び左サイドシル１１を設け、車両幅方向中央に車両前後方向に延びるフロアトンネル１２を形成している。後側クロスメンバ８よりも後側のフロアパネル２には、スペアタイヤ収納部１３が形成される。エンジンルーム９から車両後方に向かって延びる排気管１４は、フロアトンネル１２内を後側に延設され、前側クロスメンバ７を越えて右側に曲げられ、右サイドメンバ３に沿って車両後端に延設される。
車両前方のサブフレーム６には、前右サスペンション１５と前左サスペンション１６とを設けている。前右サスペンション１５は、前右車輪１７を支持している。前左サスペンション１６は、前左車輪１８を支持している。車両後方の前側クロスメンバ７及び後側クロスメンバ８間の右サイドメンバ３と左サイドメンバ４とには、夫々後右サスペンション１９と後左サスペンション２０とを設けている。後右サスペンション１９と後左サスペンション２０とは、連結部材２１で連結されている。後右サスペンション１９は、後右車輪２２を支持している。後左サスペンション２０は、後左車輪２３を支持している。 1 to 5 show an embodiment of the present invention. In FIG. 1, a vehicle 1 has a pair of left and right right side members 3 and 4 that extend in the vehicle front-rear direction below a floor panel 2. The right side member 3 and the left side member 4 are arranged such that the front end in the vehicle front-rear direction protrudes forward from the front end of the floor panel 2, and the rear end in the vehicle front-rear direction coincides with the rear end in the vehicle front-rear direction of the floor panel 2. doing.
Between the right side member 3 and the left side member 4, a front cross member 5 is stretched over the front end in the vehicle front-rear direction projecting forward from the floor panel 2, and the subframe 6 is attached to a portion where the front end of the floor panel 2 contacts. I'm hanging over. Further, between the right side member 3 and the left side member 4, a pair of front and rear front cross members 7 and a rear cross member 8 are bridged behind the vehicle. As shown in FIG. 4, the right side member 3 and the left side member 4 are bent at a portion connected to the front cross member 7, tilted toward the rear of the vehicle and extended upward, and connected to the rear cross member 8. It bends at the part and extends almost horizontally toward the rear of the vehicle. The floor panel 2 is bent at a portion in contact with the front cross member 7 and extends substantially vertically upward, and then bent at the same height as the rear cross member 8 and extends substantially horizontally toward the rear of the vehicle.
An engine room 9 is formed between the right side member 3 and the left side member 4 between the front cross member 5 and the sub frame 6. The floor panel 2 between the sub-frame 6 and the front cross member 7 is provided with a pair of left and right right side sills 10 and left side sills 11 extending in the vehicle front-rear direction on both side edges in the vehicle width direction, and in the vehicle front-rear direction at the vehicle width direction center Is formed. A spare tire storage portion 13 is formed on the floor panel 2 on the rear side of the rear cross member 8. An exhaust pipe 14 extending from the engine room 9 toward the rear of the vehicle extends to the rear side in the floor tunnel 12, is bent to the right beyond the front cross member 7, and extends to the rear end of the vehicle along the right side member 3. It is extended.
A front right suspension 15 and a front left suspension 16 are provided in the sub-frame 6 in front of the vehicle. The front right suspension 15 supports the front right wheel 17. The front left suspension 16 supports the front left wheel 18. A rear right suspension 19 and a rear left suspension 20 are provided on the right side member 3 and the left side member 4 between the front cross member 7 and the rear cross member 8 at the rear of the vehicle, respectively. The rear right suspension 19 and the rear left suspension 20 are connected by a connecting member 21. The rear right suspension 19 supports the rear right wheel 22. The rear left suspension 20 supports the rear left wheel 23.

この車両１の下部構造は、図１、図２に示すように、一対の右サイドメンバ３及び左サイドメンバ４間であり、一対の前側クロスメンバ７及び後側クロスメンバ８間に、燃料タンク２４を配置している。一対の前側クロスメンバ７及び後側クロスメンバ８には、夫々前側ステー２５及び後側ステー２６を設けている。前側ステー２５は、車両１の平面視で略三角形状に形成され、前側クロスメンバ７の車両幅方向左側に配置している。後側ステー２６は、車両１の平面視で略四角形状に形成され、後側クロスメンバ８の車両幅方向右側に配置している。前側ステー２５及び後側ステー２６には、タンクベルト２７の長手方向両端部が、夫々取付ボルト２８及び取付ボルト２９により連結されている。タンクベルト２７は、燃料タンク２４を車両下方から支持する。
また、前側クロスメンバ７の車両幅方向右側には、前側取付部３０を設けている。後側クロスメンバ８の車両幅方向左側には、後側取付部３１を設けている。前側取付部３０及び後川取付部３１には、燃料タンク２４に設けた前側取付リブ３２及び後側取付リブ３３が、夫々取付ボルト３４及び取付ボルト３５により連結されている。 As shown in FIGS. 1 and 2, the lower structure of the vehicle 1 is between a pair of right side members 3 and left side members 4, and between a pair of front side cross members 7 and rear side cross members 8. 24 is arranged. The pair of front cross member 7 and rear cross member 8 are provided with a front stay 25 and a rear stay 26, respectively. The front stay 25 is formed in a substantially triangular shape in a plan view of the vehicle 1 and is arranged on the left side of the front cross member 7 in the vehicle width direction. The rear stay 26 is formed in a substantially quadrangular shape in a plan view of the vehicle 1 and is disposed on the right side of the rear cross member 8 in the vehicle width direction. Both ends of the tank belt 27 in the longitudinal direction are connected to the front stay 25 and the rear stay 26 by mounting bolts 28 and 29, respectively. The tank belt 27 supports the fuel tank 24 from below the vehicle.
A front mounting portion 30 is provided on the right side of the front cross member 7 in the vehicle width direction. A rear attachment portion 31 is provided on the left side of the rear cross member 8 in the vehicle width direction. A front mounting rib 32 and a rear mounting rib 33 provided on the fuel tank 24 are connected to the front mounting portion 30 and the rear river mounting portion 31 by mounting bolts 34 and 35, respectively.

車両１の下部構造は、燃料タンク２４の左側方に、キャニスタ３６を配置している。車両１の平面視で、燃料タンク２４は、この燃料タンク２４の前側左角部に、斜め後方かつ車両１の幅方向外側へ延びる傾斜壁３７を有している。傾斜壁３７には、図５に示すように、取付ブラケット３８を設けている。キャニスタ３６は、左サイドメンバ４と前側クロスメンバ７と傾斜壁３７とに囲まれる空間に配置され、かつ左サイドメンバ４と前側クロスメンバ７との間に間隔を開けて傾斜壁３７の取付ブラケット３８に取り付けられる（図４参照）。前側ステー２５は、前側クロスメンバ７から車両後方に向かい突出させ、かつ車両幅方向でキャニスタ３６に近接する位置に配置している。図２、図３に示すように、前側ステー２５と燃料タンク２４の前面部３９との隙間ｄ１は、キャニスタ３６と前側クロスメンバ７との隙間ｄ２より小さくしている。
この車両１の下部構造は、キャニスタ３６を、左サイドメンバ４と前側クロスメンバ７と燃料タンク２４の傾斜壁２９との間に配置し、傾斜壁２９に取り付けている。このため、車両１の下部構造は、車両後方より衝撃を受けた際に、剛性の高い前側クロスメンバ７・後側クロスメンバ８と右サイドメンバ３・左サイドメンバ４とによりキャニスタ２８を保護できる。
このように、車両１の下部構造は、前側ステー２５を前側クロスメンバ７から車両後方に突出させ、かつ車両幅方向でキャニスタ３６に近接する位置に配置し、前側ステー２５を燃料タンク２４の前面部３９に近づけている。これにより、車両１の下部構造は、車両後方からの衝撃力により燃料タンク２４が車両前方ヘ移動した場合、キャニスタ３６が前側クロスメンバ７に接触する前に、前側ステー２５が燃料タンク２４の前面部３９と接触し、燃料タンク２４の車両前方への移動を阻止するため、キャニスタ３６を前側クロスメンバ７との衝突から保護できる。
また、この車両１の下部構造は、タンクベルト２７を固定する前側ステー２５を利用して、燃料タンク２４の前方への移動を阻止するため、移動を阻止する専用部材を新たに設け必要がなく、車両１の構造が複雑化することがない。 In the lower structure of the vehicle 1, a canister 36 is disposed on the left side of the fuel tank 24. In a plan view of the vehicle 1, the fuel tank 24 has an inclined wall 37 extending obliquely rearward and outward in the width direction of the vehicle 1 at the front left corner of the fuel tank 24. The inclined wall 37 is provided with a mounting bracket 38 as shown in FIG. The canister 36 is disposed in a space surrounded by the left side member 4, the front cross member 7, and the inclined wall 37, and a mounting bracket for the inclined wall 37 with a space between the left side member 4 and the front cross member 7. 38 (see FIG. 4). The front stay 25 protrudes from the front cross member 7 toward the rear of the vehicle and is disposed at a position close to the canister 36 in the vehicle width direction. As shown in FIGS. 2 and 3, the gap d1 between the front stay 25 and the front surface 39 of the fuel tank 24 is smaller than the gap d2 between the canister 36 and the front cross member 7.
In the lower structure of the vehicle 1, the canister 36 is disposed between the left side member 4, the front cross member 7, and the inclined wall 29 of the fuel tank 24, and is attached to the inclined wall 29. Therefore, the lower structure of the vehicle 1 can protect the canister 28 by the highly rigid front cross member 7 / rear cross member 8 and the right side member 3 / left side member 4 when receiving an impact from the rear of the vehicle. .
As described above, the lower structure of the vehicle 1 is such that the front stay 25 protrudes from the front cross member 7 to the rear of the vehicle and is disposed at a position close to the canister 36 in the vehicle width direction. It is close to the part 39. Thereby, in the lower structure of the vehicle 1, when the fuel tank 24 moves to the front of the vehicle due to an impact force from the rear of the vehicle, the front stay 25 is placed on the front surface of the fuel tank 24 before the canister 36 contacts the front cross member 7. The canister 36 can be protected from collision with the front cross member 7 because the fuel tank 24 comes into contact with the portion 39 and prevents the fuel tank 24 from moving forward.
In addition, since the lower structure of the vehicle 1 uses the front stay 25 that fixes the tank belt 27 to prevent the fuel tank 24 from moving forward, it is not necessary to newly provide a dedicated member for preventing the movement. The structure of the vehicle 1 is not complicated.

この車両１の下部構造は、車両１の平面視で、前側ステー２５を、車両幅方向両端部が前側クロスメンバ７に連結されるとともに車両幅方向中央部が燃料タンク２４の前面部３９側に向かい突出する断面に形成している。前側ステー２５は、図２、図３に示すように、車両１の平面視で、略三角形状に形成される。
このように、車両１の下部構造は、前側ステー２５を燃料タンク２４側に突出する断面形状としたことにより、車両後方からの衝撃力に対して前側ステー２５をつぶれにくい構造にでき、燃料タンク２４の車両前方への移動を確実に防止できる。
また、この車両１の下部構造は、車両１の平面視で、キャニスタ３６を、燃料タンク２４の傾斜壁３７に長辺を沿わせた長方形断面を基本形状とし、基本形状の前側クロスメンバ７に近接する角部を斜めに切り欠いた切欠部４０を備える断面形状を有している。
このように、車両１の下部構造は、キャニスタ３６の前側クロスメンバ７に近接する角部に切欠部４０を備えることで、キャニスタ３６と前側クロスメンバ７との間の隙間ｄ２を拡げ、燃料タンク２４が車両前方に移動した際に、キャニスタ３６が前側クロスメンバ７に衝突することを防止できる。 The vehicle 1 has a lower structure in which the front stay 25 is connected to the front cross member 7 at both ends in the vehicle width direction and the center portion in the vehicle width direction to the front surface 39 side of the fuel tank 24 in plan view of the vehicle 1. It forms in the cross section which protrudes oppositely. As shown in FIGS. 2 and 3, the front stay 25 is formed in a substantially triangular shape in a plan view of the vehicle 1.
As described above, the lower structure of the vehicle 1 can have a structure in which the front stay 25 is not easily crushed by the impact force from the rear of the vehicle by forming the front stay 25 in a cross-sectional shape protruding to the fuel tank 24 side. It is possible to reliably prevent 24 from moving forward of the vehicle.
In addition, the lower structure of the vehicle 1 has a canister 36 as a basic shape in a plan view of the vehicle 1 and a rectangular cross section with a long side along the inclined wall 37 of the fuel tank 24. It has a cross-sectional shape including a cutout portion 40 in which adjacent corner portions are cut obliquely.
As described above, the lower structure of the vehicle 1 is provided with the notch portion 40 at the corner portion close to the front cross member 7 of the canister 36, thereby widening the gap d <b> 2 between the canister 36 and the front cross member 7, and the fuel tank. It is possible to prevent the canister 36 from colliding with the front cross member 7 when 24 moves forward of the vehicle.

この発明は、車体の構造を複雑化させずに、車両後方からの衝撃力からキャニスタを保護することができ、車両後方に燃料タンクとキャニスタとを配置した車両の下部構造に適用することができる。   The present invention can protect the canister from an impact force from the rear of the vehicle without complicating the structure of the vehicle body, and can be applied to a lower structure of a vehicle in which a fuel tank and a canister are arranged at the rear of the vehicle. .

１ 車両
２ フロアパネル
３ 右サイドメンバ
４ 左サイドメンバ
５ 前部クロスメンバ
７ 前側クロスメンバ
８ 後側クロスメンバ
９ 後部クロスメンバ
２４ 燃料タンク
２５ 前側ステー
２６ 後側ステー
２７ タンクベルト
３６ キャニスタ
３７ 傾斜壁
３８ 取付ブラケット
３９ 前面部 DESCRIPTION OF SYMBOLS 1 Vehicle 2 Floor panel 3 Right side member 4 Left side member 5 Front cross member 7 Front cross member 8 Rear cross member 9 Rear cross member 24 Fuel tank 25 Front side stay 26 Rear side stay 27 Tank belt 36 Canister 37 Inclined wall 38 Mounting bracket 39 Front

Claims (3)

車両のフロアパネルの下方に配置され車両前後方向に延びる左右一対のサイドメンバと、前記一対のサイドメンバ間に掛け渡される前後一対のクロスメンバと、前記一対のサイドメンバ間であり前記一対のクロスメンバ間に配置される燃料タンクと、前記一対のクロスメンバに夫々設けられる前側ステー及び後側ステーと、長手方向両端部が前記前側ステー及び後側ステーにそれぞれ連結されるとともに、車両下方から前記燃料タンクを支持するタンクベルトと、前記燃料タンクの側方に配置されるキャニスタと、を有する車両の下部構造において、車両の平面視で、前記燃料タンクは、この燃料タンクの前側角部に、斜め後方かつ車両の外側へ延びる傾斜壁を有し、前記キャニスタは、前記サイドメンバと前記クロスメンバと前記傾斜壁とに囲まれる空間に配置され、かつ前記傾斜壁に取り付けられ、前記前側ステーを前記クロスメンバから車両後方に突出させ、かつ車両幅方向で前記キャニスタに近接する位置に配置し、前記前側ステーと前記燃料タンクの前面部との隙間を前記キャニスタと前記クロスメンバとの隙間より小さくしたことを特徴とする車両の下部構造。   A pair of left and right side members disposed below a vehicle floor panel and extending in the vehicle front-rear direction, a pair of front and rear cross members spanned between the pair of side members, and the pair of cross members between the pair of side members A fuel tank disposed between the members, a front stay and a rear stay provided on each of the pair of cross members, and both longitudinal ends thereof are coupled to the front stay and the rear stay, respectively, and In a lower structure of a vehicle having a tank belt that supports a fuel tank and a canister disposed on a side of the fuel tank, the fuel tank is located at a front side corner of the fuel tank in a plan view of the vehicle. The canister has an inclined wall extending obliquely rearward and outward of the vehicle, and the canister includes the side member, the cross member, and the inclined wall. Arranged in an enclosed space and attached to the inclined wall, the front stay protruding from the cross member toward the rear of the vehicle, and arranged at a position close to the canister in the vehicle width direction, the front stay and the fuel A lower structure of a vehicle, wherein a gap between a front surface portion of a tank and a gap between the canister and the cross member is made smaller. 車両の平面視で、前記前側ステーは、車両幅方向両端部が前記クロスメンバに連結されるとともに車両幅方向中央部が前記燃料タンク側に突出する断面に形成されることを特徴とする請求項１に記載の車両の下部構造。   2. The front stay is formed in a cross-section in which a vehicle width direction both ends are connected to the cross member and a vehicle width direction center portion protrudes toward the fuel tank in a plan view of the vehicle. 2. The lower structure of the vehicle according to 1. 車両の平面視で、前記キャニスタは、前記傾斜壁に長辺を沿わせた長方形断面を基本形状とし、前記クロスメンバに近接する角部を斜めに切り欠いた断面形状を有することを特徴とする請求項１または請求項２に記載の車両の下部構造。   In a plan view of the vehicle, the canister has a rectangular cross section with a long side along the inclined wall as a basic shape, and has a cross sectional shape in which a corner close to the cross member is cut obliquely. The lower structure of the vehicle according to claim 1 or 2.
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JPH068897Y2 (en) * 1985-01-18 1994-03-09 本田技研工業株式会社 Fuel tank canister
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JP3031742B2 (en) * 1991-05-29 2000-04-10 マツダ株式会社 Vehicle fuel tank device
US6182693B1 (en) * 1999-06-08 2001-02-06 Delphi Technologies, Inc. Vapor canister and fuel tank assembly
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