WO2015119106A1 - 車体前部構造 - Google Patents

車体前部構造 Download PDF

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Publication number
WO2015119106A1
WO2015119106A1 PCT/JP2015/052972 JP2015052972W WO2015119106A1 WO 2015119106 A1 WO2015119106 A1 WO 2015119106A1 JP 2015052972 W JP2015052972 W JP 2015052972W WO 2015119106 A1 WO2015119106 A1 WO 2015119106A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
width direction
vehicle width
vertical wall
vehicle body
Prior art date
Application number
PCT/JP2015/052972
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
陽介 菊池
後藤　陽一
Original Assignee
スズキ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by スズキ株式会社 filed Critical スズキ株式会社
Priority to DE112015000052.6T priority Critical patent/DE112015000052B4/de
Priority to CN201580000651.3A priority patent/CN105164006B/zh
Publication of WO2015119106A1 publication Critical patent/WO2015119106A1/ja

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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
    • B62D25/08—Front or rear portions
    • B62D25/16—Mud-guards or wings; Wheel cover panels
    • 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
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars

Definitions

  • the present invention relates to a vehicle body front structure including a front hood of a vehicle.
  • the present invention has been made in view of such a problem, and an object of the present invention is to provide a vehicle body front structure capable of obtaining sufficient rigidity while ensuring high load absorption performance in a fender bracket.
  • a typical configuration of a vehicle body front structure is a vehicle body front structure that includes a front hood of a vehicle.
  • a front fender disposed over both sides in the vehicle width direction, a vehicle body structural member disposed on the inner side or the lower side of the front fender in the vehicle width direction and extending in the vehicle front-rear direction, and a hat-shaped cross section that opens downward when viewed from the front of the vehicle
  • the fender bracket is fixed to the lower side of the front fender on the vehicle inner side than the end portion of the front hood in the vehicle width direction
  • An inner flange extending inward in the vehicle width direction from the lower end of the vertical wall on the inner side in the vehicle width direction, and an outer flange extending outward in the vehicle width direction from the lower end of the vertical wall on the outer side in the vehicle width direction of the bulging portion.
  • a Nji, inner flange be fixed to the upper surface of the body structure
  • the vertical wall inside the vehicle that is continuous with the inner flange does not deform or move downward.
  • the vertical wall inside the vehicle does not contribute to load absorption, it is not necessary to provide weak portions such as a lightening and a break point which have been conventionally performed. Therefore, sufficient rigidity can be ensured in the fender bracket. As a result, it is not necessary to increase the thickness of the plate to compensate for the rigidity that has been reduced by the fragile portion, so that it is possible to reduce the weight of the components and the entire vehicle.
  • the fender bracket may further include an extension portion that extends forward or rearward from the outer flange to the vehicle body structural member at a position spaced from the bulging portion in the vehicle front-rear direction.
  • the fender bracket is further fixed to the vehicle body structural member at the extension portion that is at a position diagonal to the location where the inner flange is fixed to the vehicle body structural member.
  • the rigidity with respect to the tightening torque when using the bolt for fixing the front fender and the fender bracket can be increased. Therefore, it is not necessary to increase the plate thickness in order to ensure rigidity, and it is possible to contribute to weight reduction of parts.
  • the extension portion since the extension portion is located at a position separated from the bulging portion, the deformation of the bulging portion when a load is applied is not hindered, and the load absorbing performance can be satisfactorily exhibited.
  • the extension part and the outer flange should be continuous on a plane. Thereby, the continuous part of an extension part and an outside flange can be made easy to change in the up-and-down direction. Accordingly, it is possible to easily deform the outer flange even when the extension portion is fixed to the vehicle body structural member while increasing the fixing strength of the fender bracket to the vehicle body structural member.
  • the bending angle or curvature radius formed by the top surface of the bulging part and the vertical wall inside the vehicle width direction is larger than the bending angle or curvature radius formed by the vertical wall outside the vehicle width direction and the top surface of the bulging part. Bigger is better. Accordingly, it is possible to promote the downward movement of the vertical wall on the outer side in the vehicle width direction while suppressing the deformation of the vertical wall on the inner side in the vehicle width direction with respect to the load from above.
  • the vertical wall on the inner side in the vehicle width direction of the bulging portion is substantially perpendicular to the top surface of the bulging portion, and the vertical wall on the outer side in the vehicle width direction of the bulging portion is separated from the top surface of the bulging portion. It is good to incline to the vehicle width direction outer side according to. According to such a configuration, the rigidity against the load from above is increased in the vertical wall on the inner side in the vehicle width direction, so that the deformation can be suitably prevented.
  • the vertical wall on the outer side in the vehicle width direction of the bulging portion is inclined outward, the vertical wall applied when a load is applied is easily deformed (moved) outward in the vehicle width direction. Therefore, more deformation strokes can be secured, and the load absorption performance can be further enhanced.
  • another configuration of the vehicle body front structure is a vehicle body front structure including a vehicle front hood.
  • a front fender disposed over both sides in the width direction, a vehicle body structural member disposed on the inner side or the lower side of the front fender in the vehicle width direction and extending in the vehicle front-rear direction, and a hat that bulges upward in a front view of the vehicle and opens downward
  • the lower end of the wall is fixed to the upper surface of the vehicle body structural member, and the lower end of the vertical wall on the outer side in the vehicle width direction is an open end.
  • the lower end of the vertical wall on the inner side in the vehicle width direction is fixed to the upper surface of the vehicle body structural member.
  • the fender bracket in the fender bracket, it is possible to provide a vehicle body front structure capable of obtaining sufficient rigidity while ensuring high load absorption performance.
  • FIG. 3 is a detailed view of the fender bracket shown in FIGS. 1 and 2. It is a figure explaining the deformation
  • SYMBOLS 100 Car body front part structure, 102 ... Front hood, 104 ... Engine room, 110 ... Front fender, 120 ... Dash side member, 130 ... Fender bracket, 132 ... Bumping part, 132a ... Top surface, 132b ... Inner vertical wall, 132c ... Outer vertical wall, 133a ... Bolt hole, 133b ... Bolt hole, 134 ... Inner flange, 136 ... Outer flange, 138 ... Extension, 140 ... Bolt
  • FIG. 1 is a diagram showing a vehicle body front part structure 100 according to the present embodiment.
  • FIG. 1A is a diagram of the right side of the vehicle body front part observed from the left front, and FIG. It is the figure which observed the vehicle body front part structure shown to 1 (a) from upper direction.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG.
  • the front hood 102 is not shown in FIGS. 1A and 1B, and the state in which the front fender 110 is transmitted is shown in FIG. 1B (FIG. 1). 2).
  • the vehicle body front structure 100 includes a front hood 102 that covers an engine room 104 of a vehicle (the whole is not shown). Below the end of the front hood 102 in the vehicle width direction, a front fender 110 constituting the side surface of the vehicle body front structure 100 is disposed across both sides of the end of the front hood 102 in the vehicle width direction.
  • a dash side member 120 which is a vehicle body structural member that extends in the vehicle front-rear direction, is disposed on the inner side and the lower side of the front fender 110 in the vehicle width direction.
  • the dash side member 120 is exemplified as the vehicle body structural member.
  • the present invention is not limited to this, and a member other than the dash side member 120 may be used as the vehicle body structural member.
  • the dash side member 120 that is a vehicle body structural member is arranged on the inner side and the lower side of the front fender 110 in the vehicle width direction, but this is only an example, and the vehicle body structural member is a front fender. 110 should just be arrange
  • the front fender 110 and the dash side member 120 are connected via a fender bracket 130.
  • the fender bracket 130 of the present embodiment has a hat-shaped cross section that opens downward when viewed from the front of the vehicle.
  • FIG. 3 is a detailed view of the fender bracket 130 shown in FIGS. 1 and 2
  • FIG. 3 (a) is a perspective view of the fender bracket 130
  • FIG. 3 (b) is a view of the fender bracket 130 of FIG. 3 (a). It is the figure which observed from above.
  • the fender bracket 130 of the present embodiment has a bulging portion 132, an inner flange 134, and an outer flange 136.
  • the bulging portion 132 bulges upward, and the front fender is located on the top surface 132a on the vehicle inner side than the end portion of the front hood 102 in the vehicle width direction. 110 is fixed to the lower side (lower surface).
  • bolt holes 133a and 133b are formed in the top surface 132a. Then, by inserting the bolt 140 into the bolt holes 133a and 133b, the fender bracket 130 is fixed to the front fender 110 as shown in FIG.
  • the fixing by the bolt 140 is exemplified, but the present invention is not limited to this, and the fender bracket 130 and the front fender 110 may be fixed by other fixing methods.
  • a vertical wall (hereinafter referred to as “below”) extends from the inner edge and the outer edge of the top surface 132 a in the vehicle width direction.
  • the inner vertical wall 132b and the outer vertical wall 132c are respectively extended.
  • an inner flange 134 extends inward in the vehicle width direction from the lower end of the inner vertical wall 132b, which is a vertical wall on the inner side in the vehicle width direction of the bulging portion 132.
  • An outer flange 136 extends from the lower end of the outer vertical wall 132c, which is a wall, toward the outer side in the vehicle width direction.
  • the inner flange 134 is fixed to the upper surface of the dash side member 120, which is a vehicle body structural member, at welding points A and B (see FIG. 3).
  • the outer flange 136 is located above the dash side member 120 and serves as a release end.
  • welding is exemplified in the fixing of the inner flange 134 to the dash side member 120, but the present invention is not limited to this, and it is also possible to fix them using other methods.
  • the configuration in which the outer flange 136 is a release end at a position above the upper surface of the dash side member 120 is illustrated, but this is not a limitation, and the outer flange 136 is not limited to the dash side member 120. It may be located below the upper surface.
  • FIG. 4 and 5 are diagrams for explaining a deformation state when a load from above is applied to the vehicle body front structure 100 shown in FIG.
  • a load is applied to the front hood 102 from above in the vehicle body front structure 100 shown in FIG. 2
  • the front hood 102 is deformed as shown in FIG.
  • the lower end of the front hood 102 contacts the front fender 110, and the load applied to the front hood 102 is transmitted to the front fender 110.
  • the outer flange 136 and the outer vertical wall 132c are deformed by the load, whereas the inner flange 134 is fixed to the upper surface of the dash side member 120. For this reason, as shown in FIGS. 4 and 5, the inner flange 134 and the inner vertical wall 132b continuous thereto do not move downward due to the load. That is, in the vehicle body front structure 100 of this embodiment, the inner vertical wall 132b does not contribute to load absorption. For this reason, it is not necessary to set the weak part like the conventional hollowing or a break point, and sufficient rigidity can be ensured in the fender bracket 130.
  • the radius of curvature formed by the top surface 132a of the bulging portion 132 and the inner vertical wall 132b is formed by the outer vertical wall 132c of the bulging portion 132 and the top surface 132a. Greater than radius of curvature. Accordingly, when a load from above is transmitted through the front fender 110, the space between the top surface 132a of the bulging portion 132 and the inner vertical wall 132b is easily deformed, as shown in FIG. As a result, the outer vertical wall 132c can be moved downward without causing deformation of the inner vertical wall 132b. Therefore, it is possible to promote the downward movement of the outer vertical wall 132c while suppressing the deformation of the inner vertical wall 132b, and it is possible to further increase the load absorption performance described above.
  • the case where the top surface 132a of the bulging portion 132 and the inner vertical wall 132b and the outer vertical wall 132c are curved is illustrated, but the present invention is not limited to this. May be bent. In that case, the bending angle formed between the top surface 132a of the bulging portion 132 and the inner vertical wall 132b may be larger than the bending angle formed between the outer vertical wall 132c and the top surface 132a of the bulging portion 132. Needless to say.
  • the inner vertical wall 132b is substantially perpendicular to the top surface 132a of the bulging portion 132, and the outer vertical wall 132c is separated from the top surface 132a of the bulging portion 132. It is set to incline outward in the vehicle width direction. That is, in this embodiment, the inner vertical wall 132b and the outer vertical wall 132c extend downward at an asymmetric angle in the vehicle width direction.
  • the inner vertical wall 132b can be increased in rigidity against a load from above, and deformation thereof is preferably prevented.
  • the outer vertical wall 132c is inclined outward in the vehicle width direction, deformation (movement) toward the outer side in the vehicle width direction can be promoted. Therefore, more deformation strokes can be secured, and the load absorption performance can be further enhanced. Further, the outer vertical wall 132c moves along the outer side in the vehicle width direction of the dash side member 120 while moving along the outer vertical wall 132c, so that the outer vertical wall 132c can be used as a guide during deformation (when moving).
  • an extension portion 138 is provided at a position extending from the outer flange 136 to the rear of the vehicle and spaced from the bulging portion 132 in the vehicle front-rear direction.
  • the fender bracket 130 is fixed to the dash side member 120 (see FIG. 2), which is a vehicle body structural member, by welding at the welding point C in the extension 138.
  • the fender bracket 130 is fixed to the dash side member 120 at the inner flange 134 and the extension portion 138 at a position diagonal to it. For this reason, the rigidity with respect to the tightening torque when the bolt 140 is used to fix the front fender 110 and the fender bracket 130 as in the present embodiment can be increased. Therefore, it is not necessary to increase the plate thickness to ensure rigidity, and it is possible to contribute to weight reduction of parts.
  • the extension portion 138 is located at a position separated from the bulging portion 132, the above-described effect can be reliably obtained without inhibiting the deformation of the bulging portion 132 when a load from above is applied.
  • the extension 138 and the outer flange 136 are continuous on a plane. Thereby, the continuous part of the extension part 138 and the outer flange 136 is easily deformed in the vertical direction. Therefore, it is possible to increase the fixing strength of the fender bracket 130 to the dash side member 120 without hindering the downward movement (deformation) of the outer flange 136 and the outer vertical wall 132c when a load from above is applied. It becomes.
  • the extension portion 138 is provided at a position where the outer flange 136 extends rearward of the vehicle, but the present invention is not limited to this, and the extension portion is extended to a position where the outer flange 136 extends toward the front of the vehicle. Even if 138 is provided, the same effect can be obtained.
  • the extension part 138 is being fixed to the dash side member 120 by welding, it is not limited also in this, They may be fixed by methods other than welding.
  • the vertical wall (inner vertical wall 132b) on the inner side in the vehicle width direction and the vertical wall (outer vertical wall 132c) on the outer side in the vehicle width direction of the fender bracket 130 are respectively provided.
  • the structure which provided a flange in the lower end of this was illustrated, it does not limit to this.
  • a flange is provided at each lower end of the vertical wall on the inner side in the vehicle width direction and the vertical wall on the outer side in the vehicle width direction. There may be no configuration.
  • the top surface of the fender bracket 130 is fixed to the lower side of the front fender 110 on the vehicle inner side than the end portion of the front hood 102 in the vehicle width direction, and the lower end of the vertical wall on the vehicle width direction inner side is the vehicle body structural member.
  • the same effect as described above can also be obtained by fixing to the upper surface of the (dash side member 120) and using the lower end of the vertical wall on the outer side in the vehicle width direction as the open end.
  • the present invention can be used for a vehicle body front structure including a front hood of a vehicle.

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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)
PCT/JP2015/052972 2014-02-05 2015-02-03 車体前部構造 WO2015119106A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112015000052.6T DE112015000052B4 (de) 2014-02-05 2015-02-03 Fahrzeugkarosseriefrontstruktur
CN201580000651.3A CN105164006B (zh) 2014-02-05 2015-02-03 车体前部结构

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014020310A JP6237290B2 (ja) 2014-02-05 2014-02-05 車体前部構造
JP2014-020310 2014-02-05

Publications (1)

Publication Number Publication Date
WO2015119106A1 true WO2015119106A1 (ja) 2015-08-13

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ID=53777911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/052972 WO2015119106A1 (ja) 2014-02-05 2015-02-03 車体前部構造

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Country Link
JP (1) JP6237290B2 (zh)
CN (1) CN105164006B (zh)
DE (1) DE112015000052B4 (zh)
WO (1) WO2015119106A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111942474A (zh) * 2019-05-15 2020-11-17 本田技研工业株式会社 车身前部构造

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019107987A (ja) * 2017-12-18 2019-07-04 スズキ株式会社 車体前部の構造
JP7180294B2 (ja) 2018-11-08 2022-11-30 スズキ株式会社 車体前部構造
JP7347255B2 (ja) * 2020-02-20 2023-09-20 マツダ株式会社 車両の前部車体構造

Citations (5)

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JP2002337745A (ja) * 2001-05-18 2002-11-27 Fuji Heavy Ind Ltd 車両の前部車体構造
JP2005014763A (ja) * 2003-06-26 2005-01-20 Toyota Motor Corp フェンダパネル取付構造
JP2008105548A (ja) * 2006-10-25 2008-05-08 Toyota Motor Corp 車両用フェンダパネル取付構造
DE102011011513A1 (de) * 2011-02-17 2012-08-23 Daimler Ag Befestigungsanordnung eines vorderen Kotflügels
JP2012176636A (ja) * 2011-02-25 2012-09-13 Mazda Motor Corp 車両の前部構造

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JP3799963B2 (ja) * 2000-05-25 2006-07-19 マツダ株式会社 車両前部の構造
KR100371278B1 (ko) * 2000-11-30 2003-02-07 현대자동차주식회사 보행자 보호기능을 갖는 자동차의 펜더패널 충격 흡수구조
JP4736609B2 (ja) * 2005-08-05 2011-07-27 マツダ株式会社 自動車のフェンダーパネル取付構造
EP1892162A3 (de) * 2006-08-21 2009-12-02 Alutech Gesellschaft m.b.H. Fußgängerschutz für ein Kraftfahrzeug
US8182027B2 (en) * 2009-06-15 2012-05-22 Toyota Motor Engineering & Manufacturing North America, Inc. Fender structure assemblies for vehicles
JP2011136597A (ja) 2009-12-25 2011-07-14 Toyota Motor Corp フェンダ支持部構造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002337745A (ja) * 2001-05-18 2002-11-27 Fuji Heavy Ind Ltd 車両の前部車体構造
JP2005014763A (ja) * 2003-06-26 2005-01-20 Toyota Motor Corp フェンダパネル取付構造
JP2008105548A (ja) * 2006-10-25 2008-05-08 Toyota Motor Corp 車両用フェンダパネル取付構造
DE102011011513A1 (de) * 2011-02-17 2012-08-23 Daimler Ag Befestigungsanordnung eines vorderen Kotflügels
JP2012176636A (ja) * 2011-02-25 2012-09-13 Mazda Motor Corp 車両の前部構造

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111942474A (zh) * 2019-05-15 2020-11-17 本田技研工业株式会社 车身前部构造
CN111942474B (zh) * 2019-05-15 2022-12-27 本田技研工业株式会社 车身前部构造

Also Published As

Publication number Publication date
JP2015147458A (ja) 2015-08-20
CN105164006B (zh) 2017-03-22
JP6237290B2 (ja) 2017-11-29
CN105164006A (zh) 2015-12-16
DE112015000052T5 (de) 2016-01-14
DE112015000052B4 (de) 2024-04-25

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