WO2013054564A1 - 車両前部の下部車体構造 - Google Patents
車両前部の下部車体構造 Download PDFInfo
- Publication number
- WO2013054564A1 WO2013054564A1 PCT/JP2012/062774 JP2012062774W WO2013054564A1 WO 2013054564 A1 WO2013054564 A1 WO 2013054564A1 JP 2012062774 W JP2012062774 W JP 2012062774W WO 2013054564 A1 WO2013054564 A1 WO 2013054564A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- outer panel
- dash
- side member
- joined
- Prior art date
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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
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- 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
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2018—Floors or bottom sub-units in connection with other superstructure subunits the subunits being front structures
-
- 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
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- 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
- B62D25/08—Front or rear portions
- B62D25/14—Dashboards as superstructure sub-units
Definitions
- the present invention relates to a lower vehicle body structure at the front of the vehicle.
- a lower body structure of a front part of a vehicle such as a four-wheeled vehicle is provided with a dash side inner panel and a dash side outer panel on both left and right sides in the vehicle width direction, and a front side member and a floor side member extending along the vehicle front-rear direction.
- the suspension frame is fastened to the joints of these members, and a dash side member extending laterally outward from the fastening part of the suspension frame is provided, and the outer end of the dash side member is the front end of the side sill It is joined to the part.
- a front tire is disposed in front of the side sill (see, for example, Patent Documents 1 to 3).
- JP 2000-108930 A JP 7-267148 A JP 2000-225966 A
- the joining strength between the dash side member and the side sill is not sufficient, and the arrangement and shape of the members such as the dash side member have not been devised so When a load is applied, it is difficult to disperse the load by transmitting it to the rear part of the vehicle, not only the front side member, dash side member and side sill are deformed, but also the vehicle body panel around the front part of the vehicle. There was a risk of deformation. In addition, since the load from the front tire when the vehicle is traveling is transmitted from the suspension frame to the vehicle body fastening portion, there is a risk of causing deformation, vibration, noise, etc. of peripheral parts.
- the present invention has been made in view of such a situation, and an object of the present invention is to improve the rigidity of the lower vehicle body without incurring high parts cost and weight, and load from the front of the vehicle. It is an object of the present invention to provide a lower vehicle body structure at the front of the vehicle that can efficiently and smoothly transmit and disperse the dash side member, floor side member, side sill, and the like to the rear of the vehicle and reduce the deformation of the lower vehicle body.
- the present invention provides a dash side inner panel and a dash side outer panel on the left and right sides in the vehicle width direction, and a front side member and a floor side member that extend along the vehicle front-rear direction.
- a suspension frame is fastened to the joint between the front side member and the floor side member, and a dash side member extending obliquely outward and rearward in the vehicle width direction from the fastening portion of the suspension frame is provided.
- An outer end portion of the side member is joined to a front end portion of the side sill, and a front surface of a lower portion of the side outer panel is disposed in front of the front end portion of the side sill.
- the side outer panel, the dash side inner panel, and the dash side outer panel A flange extending in the vehicle vertical direction is provided at an end, and the dash side outer panel, the side outer panel, and the dash side inner panel are joined by the flange at a front position below the side outer panel.
- the lower front surface of the outer panel is inclined obliquely downward toward the rear of the vehicle when viewed from the side of the vehicle, and is inclined to be inclined obliquely rearward toward the outside of the vehicle when viewed from above the vehicle.
- the lower front surface of the dash side inner panel and the front end portion of the side sill outer panel constituting the side sill are formed on an inclined surface along the front surface of the lower portion of the side outer panel and overlap each other.
- the dash side inner panel, the side sill outer panel, and the side outer panel are joined to each other by spot welding at the overlapping surface portion.
- the rearward inclination angle of the front surface of the dash side member and the inclination angle of the lower front surface of the side outer panel are set to coincide with each other.
- the outer end of the dash side member is provided with a flange extending in the vehicle vertical direction, and the flange of the dash side member is joined to the flange of the side outer panel and the dash side inner panel.
- the lower body structure of the vehicle front portion is provided with the dash side inner panel and the dash side outer panel on the left and right sides in the vehicle width direction, and extends along the vehicle front-rear direction and the front side member and the floor side member.
- a suspension frame is fastened to a joint portion of the front side member and the floor side member, and a dash side member extending obliquely outward and rearward in the vehicle width direction from the fastening portion of the suspension frame is provided,
- An outer end portion of the dash side member is joined to a front end portion of the side sill, and a front surface of a lower portion of the side outer panel is disposed in front of the front end portion of the side sill.
- the side outer panel, the dash side inner panel, and the dash side outer panel Before A flange extending in the vehicle vertical direction is provided at a portion, and the dash side outer panel, the side outer panel, and the dash side inner panel are joined by the flange at a front position below the side outer panel, and the side outer panel
- the front surface of the lower part of the vehicle is inclined obliquely downward toward the rear of the vehicle when viewed from the side of the vehicle, and is formed on an inclined surface inclined obliquely rearward toward the outside of the vehicle when viewed from above the vehicle.
- the rigidity of the lower car body can be improved without providing parts, It can effectively reduce the deformation of the lower body by al load.
- the load on the front side member is distributed to the dash side member and the floor side member, respectively.
- the load on the dash side member and the side sill is reduced when the front tire moves backward and comes into contact with the lower front of the side outer panel due to the load from the front of the vehicle. Therefore, the load from the front of the vehicle can be received by the entire side sill via the dash side member and the side outer panel, and the load from the front of the vehicle can be efficiently transmitted to the rear of the side sill.
- the front surface of the lower portion of the side outer panel is an inclined surface that is inclined in a predetermined direction, and there is no extra portion in front of the vehicle at the front end portion of the side sill.
- the weight can be reduced by minimization.
- the lower front surface of the dash side inner panel and the front end portion of the side sill outer panel constituting the side sill are formed on an inclined surface along the front surface of the lower portion of the side outer panel and overlap each other.
- the three parts of the dash side inner panel, the side sill outer panel and the side outer panel are joined to each other by spot welding at the overlapping surface portion.
- Rigidity, suspension mounting rigidity, etc. can be significantly improved, deformation of the front end of the side sill due to load from the front of the vehicle can be reduced, and load distribution using the inclined front surface of the lower side outer panel can be performed reliably it can.
- the suspension frame that is subjected to turning load, deceleration and acceleration load, vibration, etc. from the front tire during vehicle travel is fastened to the vehicle body side at a highly rigid location, vehicle travel stability can be improved. In addition, vibration and noise can be reduced.
- the inclination angle of the rear side of the front surface of the dash side member and the inclination angle of the front surface of the lower part of the side outer panel are set to coincide with each other, so that the load from the front of the vehicle is The direction can be reliably changed in the vehicle vertical direction and the vehicle width direction, not as a straight load on the vehicle, and the load can be distributed to each part of the vehicle body located at the rear of the vehicle.
- the outer end of the dash side member is provided with a flange extending in the vehicle vertical direction, and the flange of the dash side member is joined to the flange of the side outer panel and the dash side inner panel. Therefore, the rigidity of the lower vehicle body can be further improved.
- FIG. 1 is a side view showing a vehicle front portion to which a lower vehicle body structure according to an embodiment of the present invention is applied.
- A is a side view showing a state in which the side outer panel is removed from the front portion of the vehicle in FIG. 3
- (b) is a side view showing a state in which the dash side outer panel is removed from the front portion of the vehicle in (a).
- (C) is a side view showing a state in which the side sill outer panel is removed from the vehicle front portion of (b). It is a top view which shows the outer side part of the vehicle front part of FIG.
- FIG. 1 to 5 show a lower body structure of a vehicle front portion according to an embodiment of the present invention.
- the vehicle according to the embodiment of the present invention is a four-wheel type automobile as shown in FIGS. 1 to 5, and the lower body structure of the vehicle front portion 1 of this type is mainly on the left and right sides in the vehicle width direction.
- a side outer panel 6 that constitutes a vehicle body on both sides of the vehicle by extending along the vehicle front-rear direction and the vehicle up-down direction, and disposed at the lower side of the door opening on the vehicle inner side of the side outer panel 6,
- a side sill 7 extending along the side is provided.
- the dash side inner panel 2 and the dash side outer panel 3 are formed in a closed cross-sectional shape by joining the two panels in a state of being overlapped on the inner side and the outer side in the vehicle width direction.
- the side sill 7 is configured by joining the side sill inner panel 8 and the side sill outer panel 9 to each other in a state in which the side sill inner panel 8 and the side sill outer panel 9 are arranged to overlap each other in the vehicle width direction.
- the arrow F direction indicates the front of the vehicle.
- the rear end portion of the front side member 4 and the front end portion of the floor side member 5 are joined to each other.
- the end portion of the suspension frame 10 is a bolt or the like. It is concluded by.
- a cross-sectional hat in which an opening is disposed upward between the joint portion of the front side member 4 and the floor side member 5 and the front end portion of the side sill 7.
- a dash side member 11 of the mold is provided.
- the dash side member 11 of the present embodiment extends while inclining from the fastening portion P of the suspension frame 10 toward the obliquely rearward outer side in the vehicle width direction, and the outer end portion of the dash side member 11 has a side sill 7. It is joined to the front end portion of the side sill inner panel 8 to be constructed. Further, the inner end portion of the dash side member 11 is joined in the vicinity of the joint portion between the front side member 4 and the floor side member 5. A front wheel tire 12 is arranged in front of the side sill 7 as shown in FIG.
- a lower front surface 6 a of the side outer panel 6 is disposed in front of the front end portion of the side sill 7 of the present embodiment.
- the lower front surface 6a of the side outer panel 6 is bent toward the inside of the vehicle so as to cover the front end portion of the side sill inner panel 8, and is inclined obliquely downward toward the rear of the vehicle when viewed from the side of the vehicle.
- the inclination angle of the front surface 11a of the dash side member 11 toward the rear of the vehicle and the inclination angle of the lower front surface 6a of the side outer panel 6 are set to coincide with each other (the chain line C in FIG. reference).
- the front end portions of the side outer panel 6, the dash side inner panel 2 and the dash side outer panel 3 are provided with flanges 6b, 2a, 3a extending in the vehicle vertical direction, at the position of the front surface 6a below the side outer panel 6.
- the dash side outer panel 3, the side outer panel 6, and the dash side inner panel 2 are joined by flanges 3a, 6b, and 2a.
- the lower front surface of the dash side inner panel 2 and the front end portion of the side sill outer panel 9 of the present embodiment are formed on inclined surfaces along the lower front surface 6a of the side outer panel 6, respectively. It arrange
- a flange extending in the vehicle vertical direction is provided at the outer end of the dash side member 11. The flange of the dash side member 11 is joined to the flanges of the side outer panel 6 and the dash side inner panel 2.
- the side outer panel 6, the dash side inner panel 2, and the dash side outer panel 3 are joined from above the vehicle, the dash side member 11 is joined from the vehicle width direction, and the side sill outer panel 9 from the vehicle rear side. And the side sill inner panel 8 is joined.
- the suspension frame 10 is fastened to the joint portion of the front side member 4 and the floor side member 5 that extend along the vehicle front-rear direction.
- a dash side member 11 extending diagonally rearward in the vehicle width direction from the fastening portion P of the frame 10 is provided, and an outer end portion of the dash side member 11 is joined to a front end portion of the side sill inner panel 8.
- a front surface 6a below the side outer panel 6 is disposed in front of the vehicle, and flanges 6b, 2a, 3a extending in the vehicle vertical direction are provided at the front end portions of the side outer panel 6, the dash side inner panel 2, and the dash side outer panel 3, At the position of the front surface 6a below the side outer panel 6, a dash The outer outer panel 3, the side outer panel 6 and the dash side inner panel 2 are joined by flanges 3 a, 6 b and 2 a, and the lower front surface of the dash side inner panel 2 and the front end of the side sill outer panel 9 are connected to the side outer panel 6.
- the outer end of the dash side member 11 is provided with a flange extending in the vehicle vertical direction.
- the flange of the dash side member 11 is joined to the flanges of the side outer panel 6 and the dash side inner panel 2, while the side outer panel.
- the front of the vehicle is not provided. It is possible to improve the rigidity of the portion that receives the load from the vehicle, and to transmit the load from the front of the vehicle to the side sill 7 etc. of the vehicle rear via the dash side member 11 and the side outer panel 6 and efficiently disperse the load. The deformation of the lower body such as the side sill 7 can be suppressed.
- the suspension frame 10 that is subjected to turning load, deceleration and acceleration load, vibration, etc. from the front tire 12 during vehicle travel is fastened at the fastening portion P, which is a highly rigid portion, the travel stability of the vehicle is improved. Vibration and noise can be reduced, and driving operability and indoor comfort can be improved.
- the front sill 11 of the dash side member 11 and the lower front surface 6a of the side outer panel 6 are formed and arranged so as to incline toward the rear of the vehicle at the same angle. No extra components are present in the front end portion of the vehicle and the vehicle front region S of the front surface 11a of the dash side member 11, and the weight can be reduced accordingly.
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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
一方、従来の下部車体構造において、サイドシルの前端部の裏面側にリンフォースメントを接合することによって剛性を高める方法も提案されているが、リンフォースメントを設置すると、部品コスト高及び重量増大を招くとともに、取付工数増加によって取付作業性を低下させるという問題があった。
さらに、本発明の下部車体構造によれば、サイドアウタパネルの下部の前面が所定の方向へ傾斜する傾斜面であり、サイドシルの前端部の車両前方には余分な部位が存在しないので、部品形状の最小化による軽量化を図ることができる。
図1~図5は本発明の実施形態に係る車両前部の下部車体構造を示すものである。
本実施形態のダッシュサイドメンバ11は、サスペンションフレーム10の締結部Pから車両幅方向の外側斜め後方へ向かって傾斜しながら延在しており、ダッシュサイドメンバ11の外側端部は、サイドシル7を構成するサイドシルインナパネル8の前端部に接合されている。また、ダッシュサイドメンバ11の内側端部は、フロントサイドメンバ4及びフロアサイドメンバ5の接合部付近に接合されている。そして、サイドシル7の車両前方には、図1に示すように、前輪タイヤ12が配置されている。
そして、サイドアウタパネル6、ダッシュサイドインナパネル2及びダッシュサイドアウタパネル3の前端部には、車両上下方向へ延びるフランジ6b,2a,3aが設けられており、サイドアウタパネル6の下部の前面6aの位置で、ダッシュサイドアウタパネル3とサイドアウタパネル6及びダッシュサイドインナパネル2とがフランジ3a,6b,2aで接合されている。
2 ダッシュサイドインナパネル
2a フランジ
3 ダッシュサイドアウタパネル
3a フランジ
4 フロントサイドメンバ
5 フロアサイドメンバ
6 サイドアウタパネル
6a サイドアウタパネルの下部の前面
6b フランジ
7 サイドシル
8 サイドシルインナパネル
9 サイドシルアウタパネル
10 サスペンションフレーム
11 ダッシュサイドメンバ 11a ダッシュサイドメンバの前面
12 前輪タイヤ
P サスペンションフレームの締結部
Claims (4)
- 車両幅方向の左右両側にダッシュサイドインナパネル及びダッシュサイドアウタパネルが設けられ、車両前後方向へ沿って延びるフロントサイドメンバとフロアサイドメンバとが接合され、これらフロントサイドメンバ及びフロアサイドメンバの接合部にサスペンションフレームが締結されているとともに、前記サスペンションフレームの締結部から車両幅方向の外側斜め後方へ延びるダッシュサイドメンバが設けられ、前記ダッシュサイドメンバの外側端部はサイドシルの前端部に接合され、前記サイドシルの前端部の車両前方にはサイドアウタパネルの下部の前面が配置され、前記サイドアウタパネル、前記ダッシュサイドインナパネル及び前記ダッシュサイドアウタパネルの前端部には車両上下方向へ延びるフランジが設けられ、前記サイドアウタパネルの下部の前面位置で、前記ダッシュサイドアウタパネルと前記サイドアウタパネル及び前記ダッシュサイドインナパネルとが前記フランジで接合されており、
前記サイドアウタパネルの下部の前面は、車両側方視で車両後方へ向かって斜め下方に傾斜しているとともに、車両上方視で車両外側へ向かって斜め後方に傾斜した傾斜面に形成されていることを特徴とする車両前部の下部車体構造。 - 前記ダッシュサイドインナパネルの下部前面と、前記サイドシルを構成するサイドシルアウタパネルの前端部とは、前記サイドアウタパネルの下部の前面に沿った傾斜面に形成されているとともに、重なるように配置され、この重なった面の部分で、前記ダッシュサイドインナパネル、前記サイドシルアウタパネル及び前記サイドアウタパネルの3枚がスポット溶接により互いに接合されていることを特徴とする請求項1に記載の車両前部の下部車体構造。
- 前記ダッシュサイドメンバの前面の後方への傾斜角度と前記サイドアウタパネルの下部の前面の傾斜角度とが、一致するように設定されていることを特徴とする請求項1または2に記載の車両前部の下部車体構造。
- 前記ダッシュサイドメンバの外側端部には、車両上下方向へ延びるフランジが設けられ、前記ダッシュサイドメンバのフランジは、前記サイドアウタパネル及び前記ダッシュサイドインナパネルのフランジと接合されていることを特徴とする請求項1~3のいずかに記載の車両前部の下部車体構造。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013538452A JP5928912B2 (ja) | 2011-10-11 | 2012-05-18 | 車両前部の下部車体構造 |
CN201280030008.1A CN103619695B (zh) | 2011-10-11 | 2012-05-18 | 车辆前部的下部车体结构 |
US14/241,519 US8870270B2 (en) | 2011-10-11 | 2012-05-18 | Structure for lower vehicle body of vehicle front part |
DE112012003879.7T DE112012003879B4 (de) | 2011-10-11 | 2012-05-18 | Struktur für eine untere Fahrzeugkarosserie von einem Fahrzeugvorderteil |
RU2014101610/11A RU2545143C1 (ru) | 2011-10-11 | 2012-05-18 | Конструкция нижнего кузова передней части транспортного средства |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2011223901 | 2011-10-11 | ||
JP2011-223901 | 2011-10-11 |
Publications (1)
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WO2013054564A1 true WO2013054564A1 (ja) | 2013-04-18 |
Family
ID=48081626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/062774 WO2013054564A1 (ja) | 2011-10-11 | 2012-05-18 | 車両前部の下部車体構造 |
Country Status (6)
Country | Link |
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US (1) | US8870270B2 (ja) |
JP (1) | JP5928912B2 (ja) |
CN (1) | CN103619695B (ja) |
DE (1) | DE112012003879B4 (ja) |
RU (1) | RU2545143C1 (ja) |
WO (1) | WO2013054564A1 (ja) |
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JP2017056930A (ja) * | 2015-09-14 | 2017-03-23 | Jfeスチール株式会社 | リンフォースフロントピラーとリンフォースサイドシルの結合構造 |
CN109484489A (zh) * | 2017-09-11 | 2019-03-19 | 铃木株式会社 | 电动车辆的车体构造 |
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DE102013101697A1 (de) * | 2013-02-20 | 2014-08-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kraftfahrzeugtragstruktur |
US9533712B2 (en) * | 2014-10-20 | 2017-01-03 | GM Global Technology Operations LLC | Wheel catcher assembly |
JP6522982B2 (ja) * | 2015-02-18 | 2019-05-29 | 本田技研工業株式会社 | 車体構造 |
RU2696505C1 (ru) * | 2016-02-19 | 2019-08-02 | Ниппон Стил Корпорейшн | Автомобильный элемент |
JP6319672B2 (ja) * | 2016-07-21 | 2018-05-09 | マツダ株式会社 | 車体の補強構造 |
DE102018207486A1 (de) * | 2017-05-29 | 2019-01-24 | Suzuki Motor Corporation | Struktur zur Montage eines Antriebsstrangs |
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- 2012-05-18 JP JP2013538452A patent/JP5928912B2/ja active Active
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CN109484489B (zh) * | 2017-09-11 | 2022-04-05 | 铃木株式会社 | 电动车辆的车体构造 |
Also Published As
Publication number | Publication date |
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US8870270B2 (en) | 2014-10-28 |
CN103619695A (zh) | 2014-03-05 |
JP5928912B2 (ja) | 2016-06-01 |
CN103619695B (zh) | 2015-12-02 |
DE112012003879T5 (de) | 2014-07-10 |
DE112012003879B4 (de) | 2018-12-06 |
RU2545143C1 (ru) | 2015-03-27 |
US20140225396A1 (en) | 2014-08-14 |
JPWO2013054564A1 (ja) | 2015-03-30 |
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