WO2016060090A1 - 車両フロア構造 - Google Patents
車両フロア構造 Download PDFInfo
- Publication number
- WO2016060090A1 WO2016060090A1 PCT/JP2015/078816 JP2015078816W WO2016060090A1 WO 2016060090 A1 WO2016060090 A1 WO 2016060090A1 JP 2015078816 W JP2015078816 W JP 2015078816W WO 2016060090 A1 WO2016060090 A1 WO 2016060090A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reinforcing member
- tunnel
- vehicle
- floor
- lower reinforcing
- Prior art date
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- 238000013459 approach Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 113
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
Definitions
- the present invention relates to a vehicle floor structure having a reinforcing member for suppressing the floor surface of a passenger compartment from being lifted at the time of a vehicle frontal collision.
- the left and right front side members are bent obliquely rearwardly outside the vehicle at the position of the dash panel and coupled to the rocker rails along the left and right side edges of the passenger compartment floor.
- the reinforcing member that is bent so as to extend in parallel to the rocker rail at substantially the same position as the front side member is coupled to the rocker rail extending obliquely rearward from the bent portion of the front side member in the traveling direction of the vehicle. It has.
- the reinforcing member has an inverted hat-shaped cross-sectional shape, and the upper edge of the side wall on the outer side of the vehicle is coupled to the lower surface of the floor panel, and the upper edge of the side wall on the inner side of the vehicle is coupled to the inner side wall of the tunnel portion to form a closed cross section. ing.
- the vehicle floor structure described in Patent Document 2 is applied to a vehicle in which a battery such as a hybrid vehicle or an electric vehicle is mounted on the vehicle body floor.
- a tunnel frame member that supports a load acting on the front of the vehicle body on both sides in the vehicle width direction of the tunnel portion. Is provided.
- the present invention provides a vehicle floor structure that can reduce lifting caused by an offset collision by adding a reinforcing member without greatly changing an existing reinforcing member.
- a vehicle floor structure includes a tunnel portion, a front floor, a kick-up portion, a rear floor, and a pair of lower reinforcing members.
- a tunnel part is arrange
- the front floor extends to both sides of the tunnel.
- the kick-up portion is formed continuously at the tunnel portion and the rear end of the front floor.
- the rear floor extends backward from the kick-up section.
- the lower reinforcing member is joined to the lower surface in a range continuous from the tunnel portion to the front floor.
- the pair of lower reinforcing members are arranged so as to approach each other in the vehicle width direction toward the kick-up portion.
- an upper reinforcing member may be further provided.
- the upper reinforcing member is joined to the upper surface in the range from the rear end of the lower reinforcing member to the front end of the rear floor, and couples the pair of lower reinforcing members to each other.
- the rear ends of the pair of lower reinforcing members and the front ends of the upper reinforcing members are welded to at least one place on three layers sandwiching the tunnel portion and the front floor.
- the tunnel reinforcing member further includes a tunnel reinforcing member that covers the upper portion of the tunnel portion up to a position overlapping the upper edge of the lower reinforcing member.
- the tunnel reinforcing member has both outer edges along the traveling direction of the vehicle with respect to the upper edge of the lower reinforcing member. At least one spot is welded to each of the three layers with the tunnel portion in between.
- the lower reinforcing members connected to the tunnel portion and the front floor extending on both sides thereof are arranged so as to approach each other in the vehicle width direction toward the kick-up portion, that is, in a V shape. Therefore, even when the vehicle receives a collision load biased by a forward offset collision, the rigidity of the tunnel portion is increased by the lower reinforcing member and the pair of lower reinforcing members are arranged in a V shape toward the kick-up portion. Therefore, it can suppress that the back of a front floor lifts.
- the upper reinforcing member is arranged so as to connect the lower reinforcing members that are close to each other in the vehicle width direction toward the kick-up portion.
- a collision load that is biased and input by offset collision is transmitted to the lower reinforcing member on the opposite side via the member, and the collision load on one side can be reduced.
- the vehicle floor structure of the invention in which the rear ends of the pair of lower reinforcing members and the front ends of the upper reinforcing members are welded to a three-layer stack sandwiching the tunnel portion and the front floor, the lower reinforcing member and the upper reinforcing member Are joined directly and the rigidity is further increased.
- the outer edge portions along the vehicle traveling direction are welded in a three-layer manner with the tunnel portion interposed between the upper edge of the lower reinforcing member.
- the lower reinforcing members on both the left and right sides are directly joined to the tunnel reinforcing member and the pair of lower reinforcing members are integrated to increase the torsional rigidity of the tunnel portion. Therefore, even when a collision load biased due to an offset collision is input, it is possible to suppress the deformation that the front floor is lifted.
- FIG. 1 is a perspective view showing a vehicle floor structure according to an embodiment of the present invention.
- FIG. 2 is a plan view of the vehicle floor structure of FIG.
- FIG. 3 is a sectional view of the vehicle floor structure taken along line F3-F3 in FIG. 4 is a cross-sectional view of the vehicle floor structure taken along line F4-F4 in FIG. 5 is an enlarged perspective view of the rear end side of the tunnel portion of the vehicle floor structure of FIG.
- FIG. 6 is a perspective view of the periphery of the corner portion in which F6 portion in FIG. 5 is enlarged.
- FIG. 7 is a cross-sectional view around the corner portion taken along line F7-F7 in FIG.
- FIG. 1 is a perspective view showing an entire floor panel 1 having a vehicle floor structure.
- a floor panel 1 shown in FIG. 1 has a tunnel portion 2 arranged along the traveling direction of a vehicle, and a front floor 3 spreads on both sides thereof.
- the floor panel 1 is provided with a kick-up portion 5 between the front floor 3 on which the front seat is installed and the rear floor 4 on which the rear seat is installed so that the rear floor 4 side becomes one step higher.
- the floor panel 1 absorbs an impact caused by a frontal collision, and particularly suppresses deformation of the tunnel part 2 so that the front floor 3 is lifted during an offset collision.
- a floor panel 1 shown in FIG. 1 includes a tunnel portion 2, a front floor 3, a kick-up portion 5, a rear floor 4, and a pair of lower reinforcing members 6.
- a tunnel portion 2 For convenience of description of the embodiment, “front” and “rear” based on the traveling direction of the vehicle, “right” and “left” as viewed from the occupant riding this vehicle, “up” and “lower” based on gravity. Define each. Also, “inside” and “outside” are defined in the vehicle width direction.
- FIG. 2 is a plan view of a range from the front floor 3 to the kick-up portion 5.
- the tunnel part 2 is arrange
- FIG. 3 is a cross-sectional view of the tunnel portion 2 and the front floor 3 along the vehicle width direction. As shown in FIGS. 2 and 3, the front floor 3 is continuous with the lower edges of the left and right sides of the tunnel portion 2 and spreads on both sides.
- FIG. 4 is a cross-sectional view of the tunnel portion 2 and the kick-up portion 5 along the vehicle traveling direction. As shown in FIGS.
- the kick-up portion 5 is formed continuously to the rear ends of the tunnel portion 2 and the front floor 3, and the height of the upper portion 21 of the tunnel portion 2 from the rear end of the front floor 3.
- the front wall 51 rising up is formed.
- the rear floor 4 extends rearward from the kick-up portion 5.
- the floor panel 1 having the vehicle floor structure of the present embodiment has side sills 31 on the outer sides of the left and right front floors 3 as shown in FIG.
- the upper edge of each side sill 31 is joined to the outer edge of the front floor 3.
- it has the 1st cross member 32 and the 2nd cross member 33 which are extended in a pair in the vehicle width direction from the tunnel part 2 to the side sill 31, respectively.
- the first cross member 32 is disposed near the front of the front floor 3, and the second cross member 33 is disposed near the rear of the front floor 3 and between the first cross member 32 and the kick-up portion 5. .
- the first cross member 32 and the second cross member 33 are both joined to the upper surface of the front floor 3 and formed so as to rise from the front floor 3 as shown in FIG.
- the front seat is fixed using the first cross member 32 and the second cross member 33.
- the kick-up portion 5 has a rear cross member 53 joined to the rear with a reinforcing member 52 interposed therebetween.
- the lower reinforcing member 6 is a range extending from the tunnel portion 2 to the front floor 3, that is, a range extending from the left and right side walls 22 of the tunnel portion 2 to the inner end of the front floor 3 connected thereto. It is joined to the lower surface of and is provided in a pair. As shown in FIG. 2, the pair of lower reinforcing members 6 provided in a pair are arranged in a so-called “V-shape” that approaches each other in the vehicle width direction toward the kick-up portion 5. As shown in FIG. 2, the lower reinforcing member 6 extends beyond the second cross member 33 from a portion adjacent to the first cross member 32 of the front floor 3. The rear end 61 of the lower reinforcing member 6 may extend to the kick-up portion 5.
- the floor panel 1 further includes an upper reinforcing member 7 as shown in FIGS.
- FIG. 5 is a perspective view generally showing the periphery of the kick-up portion 5.
- the upper reinforcing member 7 is joined to the upper surface in the range from the rear end 61 of the lower reinforcing member 6 to the front end 41 of the rear floor 4.
- the tunnel portion 2 located therebetween, the front wall 51 of the kick-up portion 5 on both sides of the tunnel portion 2, and the front end 41 of the rear floor 4 Be joined.
- the front end 71 of the upper reinforcing member 7 overlapping the front floor 3 is joined (for example, spot welding) in a three-layer manner together with the rear end 61 of the lower reinforcing member 6 with the front floor 3 interposed therebetween.
- spot welding which is a common joining method in this field.
- the upper reinforcing member 7 connects the pair of lower reinforcing members 6 to each other.
- T a spot spot-welded to three sheets
- W a spot spot-welded to two sheets
- the floor panel 1 has a tunnel reinforcing member 8 on the upper portion 21 of the tunnel portion 2.
- the tunnel reinforcing member 8 covers the upper portion 21 of the tunnel portion 2 to a position overlapping the upper edge 62 extending along the inside of the tunnel portion 2 of the lower reinforcing member 6.
- the outer edge portions 81 along the traveling direction of the vehicle are spot-welded in three layers with the side wall 22 of the tunnel portion 2 sandwiched from the upper edge 62 of the lower reinforcing member 6. Is done.
- the floor panel 1 having the vehicle floor structure includes a side floor 34 in which the front floor 3 extends so as to wrap around the outer sides of the kick-up portion 5, and the side floor 34. And a kick-up lateral portion 55 formed by a side wall 54 connected from the floor 34 to the rear floor 4.
- the kick-up part 5 and the kick-up horizontal part 55 and the front floor 3 and the side floor 34 connected to them are collectively referred to as a corner part 50.
- FIG. 6 is an enlarged perspective view of the periphery of the kick-up horizontal portion 55.
- the corner reinforcing member 11 formed so as to go from the front wall 51 of the front floor 3 and the kick-up portion 5 to the side floor 34 and the side wall 54 of the kick-up lateral portion 55 is joined to the upper surface.
- the side sill 31 extends to the outside of the side floor 34.
- FIG. 7 is a cross-sectional view of the lower bracket 12 and its periphery along the vehicle width direction.
- the lower bracket 12 extends in a direction along the front wall 51 of the kick-up portion 5 and is attached so as to support the corner portion 50 from below.
- a portion where the corner reinforcing member 11 and the lower bracket 12 overlap is spot-welded in three layers with the front floor 3 and the side floor 34 interposed therebetween. Thereby, the front wall 51 of the kick-up part 5 is indirectly connected to the side sill 31.
- the side member 9 is shown immediately below the joint portion (three-layer overlap spot welded portion T) between the corner reinforcing member 11 and the lower bracket 12.
- the lower reinforcing member 6 is disposed in a pair in a V shape, the lower reinforcing member 6 is also transmitted from the kick-up portion 5 to the lower reinforcing member 6 on the opposite side.
- the lower reinforcing member 6 may be caused by the tunnel portion 2 being twisted due to the shear load applied to the tunnel portion 2 or the front floor 3 being lifted due to the side wall 22 of the tunnel portion 2 being opened outward. Is suppressed by.
- the floor panel 1 having the vehicle floor structure according to the present embodiment further includes the upper reinforcing member 7, the pair of lower reinforcing members 6 arranged in a pair are integrally coupled to increase rigidity.
- the uneven collision load due to the offset collision is easily diffused throughout the floor panel 1.
- the tunnel reinforcement member 8 which covered the upper part 21 of the tunnel part 2 the shear load which acts on the tunnel part 2 can be disperse
- the rear end 61 of the lower reinforcing member 6 is spot-welded to the front end 71 of the upper reinforcing member 7 with the front floor 3 interposed therebetween, so that the lower reinforcing member 6 and the upper reinforcing member 7 directly.
- the lower reinforcing member 6 is spot-welded in three layers to the edge portion 81 of the tunnel reinforcing member 8 with the upper edge 62 of the lower reinforcing member 6 sandwiching the side wall 22 of the tunnel portion 2 so that the lower reinforcing member 6 is tunnel-reinforced. Directly joined to the member 8.
- the overall rigidity of the floor panel 1 is increased, and a biased collision load due to an offset collision is easily transmitted from one of the pair of lower reinforcing members 6 to the other, so that deformation of the floor panel 1 can be suppressed.
- the vehicle floor structure of this embodiment includes the corner reinforcing member 11 and the lower bracket 12, the lower reinforcing member 6 on one side of the lower reinforcing member 6 arranged in a V shape obliquely moves to the kick-up portion 5.
- the transmitted vehicle load direction component of the collision load is transmitted from the kick-up portion 5 to the side sill 31 via the corner reinforcing member 11 and the lower bracket 12.
- the corner reinforcing member 11 and the lower bracket 12 are spot-welded in a three-layer manner with the front floor 3 and the side floor 34 interposed therebetween, so that the collision load input to the kick-up portion 5 can be easily transmitted.
- the rigidity of the floor panel 1 is further increased.
- the floor panel 1 having the vehicle floor structure according to the embodiment of the present invention has been described.
- the rigidity of the floor panel 1 is increased, and deformation such that the front floor 3 is lifted can be prevented.
- the upper reinforcing member 7, the tunnel reinforcing member 8, the corner reinforcing member 11, and the lower bracket 12 further enhance the effect provided by the lower reinforcing member 6.
- the addition of reinforcing members other than those described above does not change the essence of the present invention.
- the technical content using spot welding is described as an example for joining the members, and is not limited to spot welding.
- a method of joining the members in addition to joining by welding such as TIG welding, MIG welding, laser welding, etc., if the joining strength is sufficiently obtained, the joining is not limited to welding but by other methods such as adhesion and brazing. May be.
- SYMBOLS 1 Floor panel (with vehicle floor structure), 2 ... Tunnel part, 21 ... Upper part, 22 ... Side wall, 3 ... Front floor, 4 ... Rear floor, 5 ... Kick-up part, 55 ... Kick-up side part, 6 ... Lower reinforcing member, 61 ... rear end, 62 ... upper edge, 7 ... upper reinforcing member, 71 ... front end, 8 ... tunnel reinforcing member, 81 ... edge.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims (6)
- 車両の進行方向に沿って中央に配置されたトンネル部と、
前記トンネル部の両側へ広がるフロントフロアと、
前記トンネル部及び前記フロントフロアの後端に連続して形成されるキックアップ部と、
前記キックアップ部から後方へ広がるリアフロアと、
前記トンネル部から前記フロントフロアへ連続する範囲の下面に接合された一対の下部補強部材と、を備え、
前記下部補強部材は、前記キックアップ部に向かうにしたがって車幅方向に互いに接近するように配置される
ことを特徴とする車両フロア構造。 - 前記下部補強部材の後端から前記リアフロアの前端までの範囲の上面に接合され一対の前記下部補強部材を互いに連結する上部補強部材、をさらに備える
ことを特徴とする請求項1に記載された車両フロア構造。 - 前記下部補強部材の後端と前記上部補強部材の前端とは、前記トンネル部及び前記フロントフロアを挟んだ三枚重ねに少なくとも1か所で溶接される
ことを特徴とする請求項2に記載された車両フロア構造。 - 前記下部補強部材の上縁に重なる位置まで前記トンネル部の上部を覆うトンネル補強部材をさらに備え、
前記トンネル補強部材は、車両の進行方向に沿う両外側の縁部が前記下部補強部材の前記上縁に対して前記トンネル部を挟んで三枚重ねにそれぞれ少なくとも1か所で溶接される
ことを特徴とする請求項1に記載の車両フロア構造。 - 前記下部補強部材の上縁に重なる位置まで前記トンネル部の上部を覆うトンネル補強部材をさらに備え、
前記トンネル補強部材は、車両の進行方向に沿う両外側の縁部が前記下部補強部材の前記上縁に対して前記トンネル部を挟んで三枚重ねにそれぞれ少なくとも1か所で溶接される
ことを特徴とする請求項2に記載の車両フロア構造。 - 前記下部補強部材の上縁に重なる位置まで前記トンネル部の上部を覆うトンネル補強部材をさらに備え、
前記トンネル補強部材は、車両の進行方向に沿う両外側の縁部が前記下部補強部材の前記上縁に対して前記トンネル部を挟んで三枚重ねにそれぞれ少なくとも1か所で溶接される
ことを特徴とする請求項3に記載の車両フロア構造。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580055729.1A CN106794879B (zh) | 2014-10-14 | 2015-10-09 | 车辆地板构造 |
BR112017007820-1A BR112017007820B1 (pt) | 2014-10-14 | 2015-10-09 | Estrutura de piso de veículo |
RU2017116526A RU2660199C1 (ru) | 2014-10-14 | 2015-10-09 | Конструкция днища транспортного средства |
PH12017500703A PH12017500703A1 (en) | 2014-10-14 | 2017-04-12 | Vehicle floor structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014209841A JP6421534B2 (ja) | 2014-10-14 | 2014-10-14 | 車両フロア構造 |
JP2014-209841 | 2014-10-14 |
Publications (1)
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WO2016060090A1 true WO2016060090A1 (ja) | 2016-04-21 |
Family
ID=55746636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/078816 WO2016060090A1 (ja) | 2014-10-14 | 2015-10-09 | 車両フロア構造 |
Country Status (5)
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---|---|
JP (1) | JP6421534B2 (ja) |
CN (1) | CN106794879B (ja) |
PH (1) | PH12017500703A1 (ja) |
RU (1) | RU2660199C1 (ja) |
WO (1) | WO2016060090A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018030513A (ja) * | 2016-08-26 | 2018-03-01 | 日産自動車株式会社 | 車両のバッテリ搭載構造 |
CN110816683A (zh) * | 2018-08-13 | 2020-02-21 | 马自达汽车株式会社 | 下部车体构造 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6733849B1 (ja) * | 2018-11-06 | 2020-08-05 | 日本製鉄株式会社 | フロアトンネル |
JP7331448B2 (ja) * | 2019-05-15 | 2023-08-23 | マツダ株式会社 | 電動車両の下部車体構造 |
JP7248609B2 (ja) | 2020-02-05 | 2023-03-29 | トヨタ自動車株式会社 | 車両構造 |
JP7464561B2 (ja) * | 2021-04-05 | 2024-04-09 | トヨタ自動車株式会社 | 車両のボディ |
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JPS6426581U (ja) * | 1987-08-11 | 1989-02-15 | ||
JPH0769246A (ja) * | 1993-09-01 | 1995-03-14 | Nissan Motor Co Ltd | 車両用フロントフロアトンネル部構造 |
JP2007216903A (ja) * | 2006-02-20 | 2007-08-30 | Mazda Motor Corp | 自動車の下部車体構造 |
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JP2816484B2 (ja) * | 1989-12-22 | 1998-10-27 | マツダ株式会社 | 車両のフロア部構造 |
JP3775280B2 (ja) * | 2001-10-31 | 2006-05-17 | 日産自動車株式会社 | 車体前部構造 |
US7104596B2 (en) * | 2003-10-16 | 2006-09-12 | Honda Motor Co., Ltd. | Vehicle body structure |
US7270369B2 (en) * | 2004-09-22 | 2007-09-18 | Mazda Motor Corporation | Automobile underbody structure |
RU56320U1 (ru) * | 2005-05-11 | 2006-09-10 | Открытое акционерное общество "АВТОВАЗ" | Передняя часть кузова транспортного средства |
JP5272877B2 (ja) * | 2009-04-24 | 2013-08-28 | トヨタ自動車株式会社 | 車両の下部構造 |
US8668248B2 (en) * | 2009-11-05 | 2014-03-11 | Honda Motor Co., Ltd. | Vehicle body structure |
-
2014
- 2014-10-14 JP JP2014209841A patent/JP6421534B2/ja active Active
-
2015
- 2015-10-09 RU RU2017116526A patent/RU2660199C1/ru active
- 2015-10-09 CN CN201580055729.1A patent/CN106794879B/zh active Active
- 2015-10-09 WO PCT/JP2015/078816 patent/WO2016060090A1/ja active Application Filing
-
2017
- 2017-04-12 PH PH12017500703A patent/PH12017500703A1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6426581U (ja) * | 1987-08-11 | 1989-02-15 | ||
JPH0769246A (ja) * | 1993-09-01 | 1995-03-14 | Nissan Motor Co Ltd | 車両用フロントフロアトンネル部構造 |
JP2007216903A (ja) * | 2006-02-20 | 2007-08-30 | Mazda Motor Corp | 自動車の下部車体構造 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018030513A (ja) * | 2016-08-26 | 2018-03-01 | 日産自動車株式会社 | 車両のバッテリ搭載構造 |
CN110816683A (zh) * | 2018-08-13 | 2020-02-21 | 马自达汽车株式会社 | 下部车体构造 |
US11097787B2 (en) * | 2018-08-13 | 2021-08-24 | Mazda Motor Corporation | Lower vehicle-body structure |
Also Published As
Publication number | Publication date |
---|---|
CN106794879A (zh) | 2017-05-31 |
JP6421534B2 (ja) | 2018-11-14 |
RU2660199C1 (ru) | 2018-07-05 |
PH12017500703B1 (en) | 2017-10-09 |
JP2016078539A (ja) | 2016-05-16 |
BR112017007820A2 (pt) | 2018-01-16 |
PH12017500703A1 (en) | 2017-10-09 |
CN106794879B (zh) | 2019-04-19 |
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