WO2012073621A1 - Construction de section d'extrémité avant de véhicule - Google Patents

Construction de section d'extrémité avant de véhicule Download PDF

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Publication number
WO2012073621A1
WO2012073621A1 PCT/JP2011/074789 JP2011074789W WO2012073621A1 WO 2012073621 A1 WO2012073621 A1 WO 2012073621A1 JP 2011074789 W JP2011074789 W JP 2011074789W WO 2012073621 A1 WO2012073621 A1 WO 2012073621A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
members
pedestrian
bumper beam
bumper
Prior art date
Application number
PCT/JP2011/074789
Other languages
English (en)
Japanese (ja)
Inventor
茂樹 木原
省 北川
福富　健
篤史 池田
Original Assignee
三菱自動車工業株式会社
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 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Publication of WO2012073621A1 publication Critical patent/WO2012073621A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • 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
    • B62D25/082—Engine compartments
    • B62D25/084—Radiator supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

Definitions

  • the present invention relates to a front end structure of a vehicle, and more particularly to a technique for improving pedestrian protection.
  • a vehicle body member formed by processing a steel plate to form a framework of the vehicle is generally constructed such that a radiator core support member is joined to a tip portion of a pair of left and right side member members and a bumper beam member is attached. It is done.
  • a front end portion of a vehicle needs to minimize damage to the pedestrian when in contact with the pedestrian, and various structures for protecting the pedestrian have been developed.
  • the front end structure of the vehicle is configured such that the radiator can be displaced with respect to the upper member which is a part of the radiator core support member, and the upper member is preferentially deformed in comparison with the radiator.
  • a bumper beam member is attached to the tip portion of the side member member via an impact absorbing member adjusted to collapse in a collision or the like.
  • Front end structures of vehicles have been developed.
  • the bumper beam member protrudes forward more than the radiator core support member, and since the height position of the bumper beam member is substantially equal to the height position of the pedestrian's knee, the bumper beam member becomes the pedestrian's knee
  • the present invention has been made to solve such problems, and an object of the present invention is to provide a front end structure of a vehicle capable of improving pedestrian protection.
  • the radiator core support member is joined and passed to the upper surface of each front end of the pair of left and right front side members, and the pair of left and right front side members
  • the bumper beam member is attached to a front end of the vehicle at each end of the pair of left and right front side member members so as to project forward from the upper support member above the bumper beam member.
  • Characterized by comprising Te (claim 1).
  • the auxiliary member has a flange extending to the front of the vehicle, and the cross section is formed in a hat shape (claim 2). Further, the flange may be formed with a bead extending along the flange (claim 3). Further, the bumper beam member may be provided at each end of the pair of left and right front side member members so as to protrude forward of the vehicle and be attached via a crash member that absorbs an impact by being crushed (claims) Item 4).
  • the auxiliary member which protrudes from the upper support member of the radiator core support member to the front of the vehicle and extends in the vehicle width direction is provided above the bumper beam member.
  • the auxiliary member has a hat-like cross section, so that the auxiliary member can secure a certain degree of rigidity, and can deform when it contacts a pedestrian and can absorb impact force, and extends forward of the vehicle By having the flange, the impact force can be absorbed by deformation when the flange contacts the pedestrian (claim 2).
  • the flange can be easily deformed when it comes in contact with a pedestrian and can absorb impact force (claim 3).
  • the bumper beam members are attached to the front ends of the pair of left and right front side member members via crush members projecting forward of the vehicle, even if the crush members largely project forward of the vehicle, the bumper beam By providing the auxiliary member above the members, the pedestrian protection can be improved (claim 4).
  • FIG. 1 is a perspective view showing a front end structure of a vehicle according to the present invention. It is the figure which looked at the front-end part structure of a vehicle from the arrow A direction of FIG.
  • FIG. 2 is a cross-sectional view taken along the line BB of FIG. 1; It is a figure which shows the behavior of a leg of a pedestrian when a leg of a pedestrian contacts a front end part of vehicles. It is a figure which shows the modification of the front-end part structure of the vehicle which concerns on this invention.
  • FIG. 1 is a perspective view of a front end structure of a vehicle according to the present invention.
  • the front end of the vehicle is largely divided into a pair of left and right front side members 10, 10, a radiator core support 20 joined to an upper end portion of the front side members 10, 10, a front side member 10,
  • a vehicle body is constituted of a bumper beam 30 attached to the front end portion of 10 and a bumper reinforcement 40 according to the present invention.
  • the front side members 10, 10, the radiator core support 20, the bumper beam 30, and the bumper reinforcement 40 according to the present invention, which are vehicle body members, will be described here, the front end portion of the vehicle is not shown.
  • a front fender is disposed at the vehicle outer side of the side members 10, 10, a hood is disposed above the radiator core support 20 and the bumper reinforcement 40, and covers the bumper beam 30 and the bumper reinforcement 40.
  • a bumper made of resin is provided.
  • the radiator core support 20 is a member mainly for supporting a radiator (not shown).
  • the front side members 10, 10 have flanges 14 formed at the ends of the front side members 12, 12, respectively, and the radiator core support 20 has an upper support member 22 and a pair of left and right side support members 24, 24. It consists of
  • the bumper beam 30 has a gap in front of the bumper beam member 32 and is covered by the bumper core 34.
  • the bumper beam 30 projects to the front of the vehicle at both left and right end portions of the bumper beam member 32 and collapses to absorb shocks.
  • the members 36, 36 are joined, and flanges 38 corresponding to the flanges 14 are formed at the rear ends of the crash members 36, 36, respectively.
  • the front end portion of the vehicle basically has the side support members 24, 24 joined to the upper surface of the front end portion of the front side member members 12, 12, and the flanges 14 of the respective front ends of the front side member members 12 are crash members. It is joined with the flange 38 of each rear end of 36 and 36, and is comprised.
  • the bumper reinforcement 40 comprises a pair of left and right side brackets 42, 42, stays 44, 44 consisting of a pair of elongated members, and a bumper reinforcement member (auxiliary member) 50.
  • the bumper reinforcement 40 is joined to the front end of the side brackets 42, 42 extending from the side support members 24, 24 to the front of the vehicle at both ends of the bumper reinforcement member 50 and near the central portion of the bumper reinforcement 50
  • the front ends of the pair of stays 44 are joined to the bumper reinforcement member 50 and the rear ends are joined to the upper support member 22 so as to connect the upper support member 22 with the upper support member 22.
  • FIG. 3 a cross-sectional view taken along the line BB of FIG. 1 is shown, but the bumper reinforcement member 50 has a hat-shaped cross section, and has a flat upper surface 52 and a flange 54 extending to the front of the vehicle. Have.
  • the bumper reinforcement 40 has a function of supporting the upper portion of the bumper fascia 60, and the upper portion of the bumper fascia 60 is a fastening member on the upper surface 52. It is fixed by
  • the bumper fascia 60 is provided at the front end of the vehicle such that the upper portion is fixed to the bumper reinforcement 40 and the lower portion is fixed to the lower surface of the bumper core 34 of the bumper beam 30, for example.
  • the bumper reinforcement 40 also has a function of protecting the pedestrian when the front end of the vehicle comes in contact with the pedestrian.
  • the bumper reinforcement member 50 of the bumper reinforcement 40 has a function of supporting the upper part of the leg of the pedestrian and preventing the fall of the upper body of the pedestrian to the rear of the vehicle.
  • the behavior of the leg 100 of the pedestrian when the leg 100 of the pedestrian is in contact with the front end of the vehicle is shown, but as shown in FIG.
  • the knee 102 contacts the bumper fascia 60 at the position of the bumper beam 30 substantially simultaneously, and the leg upper portion 104 contacts the bumper fascia 60 at the position of the bumper reinforcement member 50 (two-dot chain line).
  • the upper leg portion 104 comes in contact with the bumper reinforcement member 50 (solid line).
  • the upper leg 104 abuts against the bumper reinforcement member 50 in this manner, the upper body of the pedestrian hardly falls to the rear of the vehicle around the joint of the knee 102, and the front end of the vehicle comes into contact with the pedestrian. Even if it is, the damage to the pedestrian can be minimized, and the pedestrian protection can be improved.
  • the bumper reinforcement member 50 has a hat-like cross section, a certain degree of rigidity is secured, but since the lower surface is open, the bumper reinforcement member 50 is deformed when it comes in contact with a pedestrian and the impact force is Is absorbable. Further, since the pair of stays 44 and 44 are formed of elongated members, the impact force can be absorbed even by buckling of the stays 44 and 44, and the impact received by the pedestrian can be favorably mitigated. Furthermore, in the present embodiment, since the bumper reinforcement member 50 has the flange 54 extending forward of the vehicle, the impact force can also be absorbed by deformation when the flange 54 contacts the pedestrian. It is possible to further reduce the impact of the pedestrian. In this case, by setting the length of the flange 54 appropriately, it is possible to regulate the bending angle of the knee 102 of the pedestrian.
  • FIG. 5 a modification of the front end structure of the vehicle according to the present invention is shown in the same manner as FIG. 3, and as shown in the figure, a flange 54 'is used instead of the bumper reinforcement member 50.
  • a bumper reinforcement member 50 ' having a bead 56 extending along the flange 54' may be employed.
  • the bead 56 is formed on the flange 54 'in this manner, the flange 54' can be easily deformed when it comes in contact with the pedestrian to absorb the impact force, thereby further reducing the impact received by the pedestrian. be able to. Thereby, the pedestrian protection can be further improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention porte sur un élément de poutre de pare-chocs (30) qui est fixé aux extrémités de pointe d'une paire gauche/droite d'éléments latéraux avant (10) de façon à faire saillie vers l'avant du véhicule, et un élément auxiliaire (50) est disposé au-dessus de l'élément de poutre de pare-chocs de façon à faire saillie vers l'avant du véhicule à partir d'un élément de support supérieur (22) d'un support de faisceau de radiateur (20) et également pour s'étendre dans la direction de largeur du véhicule.
PCT/JP2011/074789 2010-12-01 2011-10-27 Construction de section d'extrémité avant de véhicule WO2012073621A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010268421A JP2012116351A (ja) 2010-12-01 2010-12-01 車両の前端部構造
JP2010-268421 2010-12-01

Publications (1)

Publication Number Publication Date
WO2012073621A1 true WO2012073621A1 (fr) 2012-06-07

Family

ID=46171571

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/074789 WO2012073621A1 (fr) 2010-12-01 2011-10-27 Construction de section d'extrémité avant de véhicule

Country Status (2)

Country Link
JP (1) JP2012116351A (fr)
WO (1) WO2012073621A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013009615U1 (de) * 2013-10-30 2015-02-02 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Kunststoff-Komponententräger für den Vorderbau einerKraftfahrzeugkarosserie
EP3176040A1 (fr) * 2015-12-02 2017-06-07 Mitsubishi Jidosha Kogyo K.K. Structure avant de véhicule
CN109664851A (zh) * 2017-10-03 2019-04-23 丰田自动车株式会社 车辆前部构造
EP4159547A1 (fr) * 2021-10-01 2023-04-05 Mazda Motor Corporation Structure avant de véhicule

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6178697B2 (ja) * 2013-11-05 2017-08-09 株式会社Ｓｕｂａｒｕ 衝撃吸収部材
JP6441627B2 (ja) * 2014-09-24 2018-12-19 株式会社Ｓｕｂａｒｕ 衝撃吸収部材
JP6187484B2 (ja) * 2015-01-16 2017-08-30 マツダ株式会社 車両の前部構造

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11334648A (ja) * 1998-05-28 1999-12-07 Daihatsu Motor Co Ltd 自動車の衝撃吸収装置
JP2004216975A (ja) * 2003-01-10 2004-08-05 Fuji Heavy Ind Ltd 自動車車体の前部構造
JP2007283993A (ja) * 2006-04-20 2007-11-01 Honda Motor Co Ltd 車体前部構造
JP2009280152A (ja) * 2008-05-26 2009-12-03 Honda Motor Co Ltd 車体前部構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11334648A (ja) * 1998-05-28 1999-12-07 Daihatsu Motor Co Ltd 自動車の衝撃吸収装置
JP2004216975A (ja) * 2003-01-10 2004-08-05 Fuji Heavy Ind Ltd 自動車車体の前部構造
JP2007283993A (ja) * 2006-04-20 2007-11-01 Honda Motor Co Ltd 車体前部構造
JP2009280152A (ja) * 2008-05-26 2009-12-03 Honda Motor Co Ltd 車体前部構造

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013009615U1 (de) * 2013-10-30 2015-02-02 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Kunststoff-Komponententräger für den Vorderbau einerKraftfahrzeugkarosserie
US9365243B2 (en) 2013-10-30 2016-06-14 GM Global Technology Operations LLC Plastic component carrier for front mounting of a motor vehicle body
EP3176040A1 (fr) * 2015-12-02 2017-06-07 Mitsubishi Jidosha Kogyo K.K. Structure avant de véhicule
CN109664851A (zh) * 2017-10-03 2019-04-23 丰田自动车株式会社 车辆前部构造
EP4159547A1 (fr) * 2021-10-01 2023-04-05 Mazda Motor Corporation Structure avant de véhicule

Also Published As

Publication number Publication date
JP2012116351A (ja) 2012-06-21

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