WO2010021174A1 - Pare-chocs avant pour voiture - Google Patents

Pare-chocs avant pour voiture Download PDF

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Publication number
WO2010021174A1
WO2010021174A1 PCT/JP2009/055774 JP2009055774W WO2010021174A1 WO 2010021174 A1 WO2010021174 A1 WO 2010021174A1 JP 2009055774 W JP2009055774 W JP 2009055774W WO 2010021174 A1 WO2010021174 A1 WO 2010021174A1
Authority
WO
WIPO (PCT)
Prior art keywords
bumper
absorber
passenger car
width direction
partition plate
Prior art date
Application number
PCT/JP2009/055774
Other languages
English (en)
Japanese (ja)
Inventor
健治 本多
哲也 篠原
聡一郎 谷
Original Assignee
トヨタ車体株式会社
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 トヨタ車体株式会社 filed Critical トヨタ車体株式会社
Publication of WO2010021174A1 publication Critical patent/WO2010021174A1/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
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • 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
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • B60R2019/182—Structural beams therefor, e.g. shock-absorbing made of metal of light metal, e.g. extruded
    • 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
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B60R2019/1873—Cellular materials
    • 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
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1886—Bumper fascias and fastening means therefor
    • 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
    • B60R19/52—Radiator or grille guards ; Radiator grilles
    • B60R2019/525—Radiator grilles

Definitions

  • the present invention is a beam member extending in the vehicle width direction, a bumper reinforcement attached to the front of the vehicle body, a bumper absorber serving as a buffer member attached to the front of the bumper reinforcement, and a bumper covering the bumper absorber from the front
  • the invention relates to a front bumper of a passenger car which is composed of a cover and a cover.
  • a front bumper of a passenger car related to this is described in Patent Document 1.
  • the front bumper 100 is, as shown in the longitudinal sectional view of FIG. 7, a bumper reinforcement 102 attached to a side member 110 of the vehicle body, a bumper absorber 104 which is a buffer member attached to the front of the bumper reinforcement 102, and a bumper absorber 104. And a bumper cover 105 covering the front side.
  • a space S is formed between the outer peripheral surface of the bumper absorber 104 and the inner wall surface of the bumper cover 105 so that the impact absorption performance of the bumper against an impact load does not deteriorate.
  • the present invention has been made to solve the above-mentioned problems, and the problem to be solved by the present invention is that the hot air from the engine room does not get into the front side of the condenser or the like through the space of the front bumper. In addition to the above, it is desirable not to lower the impact absorption performance of the front bumper or to increase the cost due to the hot air wraparound measures.
  • the invention according to claim 1 is a beam member extending in the vehicle width direction, and a bumper reinforcement attached to the front of the vehicle body, a bumper absorber serving as a buffer member attached to the front of the bumper reinforcement, and the bumper absorber
  • the front bumper of a passenger car which is composed of a bumper cover that covers from the front and rear sides of the bumper absorber, the space formed inside the bumper cover extending from the outer peripheral surface of the bumper absorber at the left and right ends of the bumper absorber.
  • a partition plate portion is provided to divide in a direction, and the partition plate portion is made of the same material as the bumper absorber and configured to be broken with respect to the bumper absorber by receiving a collision load from the front. I assume.
  • the left and right end portions of the bumper absorber are provided with partition plates extending from the outer peripheral surface of the bumper absorber to divide the space formed inside the bumper cover in the vehicle width direction. For this reason, the hot air from the engine compartment enters the inside of the bumper cover from both sides in the width direction of the front bumper and is blocked by the partition plate portion even if it flows through the space in the central direction. As a result, the hot air is less likely to flow to the front side of the condenser and the radiator, and the cooling efficiency of the condenser and the like does not decrease. Further, since the partition plate portion is made of the same material as the bumper absorber, it can be integrally formed with the bumper absorber, and the cost does not increase. Furthermore, since the partition plate portion is configured to be broken with respect to the bumper absorber by receiving a collision load from the front, the presence of the partition plate portion hardly reduces the impact absorbing performance of the front bumper.
  • the partition plate portion is configured to project upward from the upper surface of the bumper absorber, and is formed in an inclined state with respect to a virtual longitudinal wall surface extending in the vehicle longitudinal direction.
  • a notch is formed between the lower end and the upper surface of the bumper absorber.
  • the invention according to claim 4 is a beam member extending in the vehicle width direction, a bumper reinforcement attached to the front of the vehicle body, a bumper absorber serving as a buffer member attached to the front of the bumper reinforcement, and the bumper absorber Is a front bumper of a passenger car including a bumper cover covering the vehicle body, the bumper absorber extending from the upper surface of the absorber main body along the front of the bumper reinforcement from the upper surface of the absorber main body extending in the vehicle width direction A space extending in the vehicle width direction is formed between the upper surface of the absorber main body of the bumper absorber and the front surface of the overhang portion and the inner wall surface of the bumper cover.
  • the overhang of the bumper absorber is the upper end located above the bumper reinforcement There projects rearwardly, characterized in that it is formed in a shape along the lower end face of the radiator grille disposed above the bumper cover.
  • the upper end portion of the projecting portion of the bumper absorber is formed in a shape along the lower end surface of the radiator grille which protrudes rearward and is disposed on the upper side of the bumper cover. That is, the gap between the upper end of the projecting portion of the bumper absorber and the lower end surface of the radiator grille can be reduced. Therefore, even if the hot air from the engine compartment enters the space from both sides in the width direction of the front bumper and moves to the central portion, the hot air flows from between the upper end of the bumper absorber and the lower end face of the radiator grill It becomes difficult to be discharged to the front side of the As a result, the cooling efficiency of the condenser and the like does not decrease. Further, since a space extending in the vehicle width direction is formed between the bumper absorber and the bumper cover, the impact absorption performance of the bumper against an impact load does not decrease.
  • the present invention it is difficult for hot air from the engine room to pass through the space of the front bumper to the front side of the condenser or the like, and the cooling efficiency of the condenser or the like does not decrease. Furthermore, there is no reduction in impact absorption performance or cost increase due to hot air wraparound measures.
  • FIG. 1 A figure showing the bumper absorber of the front bumper which concerns on Embodiment 1 of this invention
  • FIG. 2 B figure showing a bumper cover etc.
  • FIG. 1 A front longitudinal cross-sectional view (II-II arrow sectional view of FIG. 1 (A)) of a passenger car provided with a front bumper. It is the III arrow enlarged view of FIG.
  • the IVA-IVA arrow sectional view (A view) of FIG. 3, the IVB-IVB arrow sectional view (B view) of FIG. 3, and the IVC-IVC arrow sectional view (C view) of FIG. 3 are shown.
  • FIG. A a perspective view showing the bumper absorber of the front bumper which concerns on Embodiment 2 of this invention
  • a top view (figure B).
  • FIG. 5 (A) a front bumper
  • VIB-VIB arrow sectional view view B
  • FIG. 5 (A) a front bumper
  • FIG. 1 is a perspective view showing a bumper absorber, a bumper cover and the like of a front bumper according to the present embodiment
  • FIG. 2 is a front longitudinal sectional view of a passenger car provided with the front bumper (arrow II-II in FIG. 1 (A)).
  • 3 is an enlarged view in the direction of arrow III in FIG. 1 (A)
  • FIG. 4 is a sectional view of each part in FIG.
  • a condenser 10 for cooling the air conditioner refrigerant and a radiator 12 for cooling the engine cooling water (Refer to FIG. 2) are installed in a state of being stacked in front and back.
  • the condenser 10 and the radiator 12 are formed in a rectangular plate shape, and are supported by members such as a radiator support (not shown) provided on a body of a passenger car.
  • plate-like side deflectors 15 are provided on both sides of the condenser 10 and the radiator 12 in the vehicle width direction.
  • the hot air in the engine room turns to the front side of the condenser 10 along the lower surface of the left and right fender aprons (not shown) and the hood 11 (see FIG. 2).
  • a bumper reinforcement 22 of a front bumper 20 is attached to the end of a front side member (not shown) of the body of the passenger car.
  • a radiator grille 30 acting as an air intake is attached to the upper center of the front bumper 20.
  • the front bumper 20 is, as shown in FIGS. 1 and 2, a bumper reinforcement 22 which is a beam member extending in the vehicle width direction, a bumper absorber 24 which is a buffer member attached to the front of the bumper reinforcement 22, and the bumper It is comprised from the bumper cover 26 which covers the absorber 24 and bumper reinforcement 22 from the front.
  • the bumper reinforcement 22 is made of, for example, an aluminum alloy, and as shown in FIGS. 2 and 4A and 4B, the bumper reinforcement 22 is formed in a rectangular cylindrical shape whose vertical width is wider than the front and rear width.
  • the internal space of the bumper reinforcement 22 is vertically divided by a partition 22s extending in the vehicle width direction.
  • FIG. 1 and 2 a bumper reinforcement 22 which is a beam member extending in the vehicle width direction
  • a bumper absorber 24 which is a buffer member attached to the front of the bumper reinforcement 22
  • the bumper It is comprised from the bumper cover 26 which covers the absorber 24 and bumper reinforcement 22 from the front.
  • the bumper reinforcement 22 is made of, for example,
  • FIG. 4 (A) is a cross-sectional view taken along line IVA-IVA in FIG. 3
  • FIG. 4 (B) is a cross-sectional view taken along line IVB-IVB in FIG. 3
  • FIG. 4 (C) is an arrow IVC-IVC in FIG.
  • FIG. 3 shows a sectional view
  • FIG. 3 is an enlarged view of FIG. 1 (A) taken along arrow III.
  • the bumper absorber 24 is made of, for example, expanded polystyrene and is molded into a predetermined shape by a mold. As shown in FIG. 1 (A) etc., the bumper absorber 24 includes an absorber main body 241 extending in the vehicle width direction, a projecting rib 243 formed on the upper surface 241 u of the absorber main body 241, and a partition plate 245 It consists of As shown in FIG. 2 and FIG. 4 etc., the absorber main body portion 241 is formed to have a trapezoidal cross section in the vertical cross section, and covers the lower half of the front surface 22 f of the bumper reinforcement 22. It is joined. On the upper surface 241 u of the absorber main body portion 241, as shown in FIG.
  • a ridge portion 243 having a polygonal cross section extending along the front surface 22 f of the bumper reinforcement 22 is formed on the right and left sides sandwiching the central portion. It is done. Further, on the upper surface 241 u of the absorber main body portion 241, left and right partition plate portions 245 are provided at positions outside the left and right protruding portions 243 in the vehicle width direction.
  • the left and right partition plate portions 245 are plate-like members that divide the space S formed inside the cover main body portion 26m (described later) of the bumper cover 26 in the vehicle width direction. As shown in FIG. 3, the left and right partition plates 245 are formed at substantially the same positions in the vehicle width direction as the side deflectors 15 provided at both ends in the vehicle width direction of the condenser 10 and the like. As shown in FIG. 4B, the partition plate portion 245 projects upward from the upper surface 241 u of the absorber main body portion 241, and has a substantially square shape so as to cross a space S formed inside the cover main body portion 26m. It is formed.
  • a notch 246 having a substantially wedge-shaped side surface is formed between the partition plate portion 245 and the upper surface 241 u of the absorber main body portion 241.
  • the width dimension of the connecting portion 245c between the partition plate portion 245 and the absorber main body portion 241 can be reduced, and the partition plate portion 245 is easily broken with respect to the absorber main body portion 241 at the position of the connecting portion 245c.
  • the partition plate portion 245 is formed to be inclined with respect to a virtual longitudinal wall surface W extending in the vehicle longitudinal direction.
  • the bumper cover 26 is a member constituting an outer design of the front bumper 20, and a bumper grille 26h serving as an air intake is formed at a central position. Furthermore, light openings 26z are formed on the left and right sides of the bumper grille 26h.
  • the bumper cover 26 is provided with the above-mentioned cover main body 26m on the upper side of the bumper grille 26h, and the cover main body 26m corresponds to the bumper absorber 24 and the bumper reinforcement 22 as shown in FIGS. In order to cover the front face 22f from the front, it is formed to have a substantially C-shaped longitudinal sectional shape.
  • the hot air in the engine compartment is configured not to wrap around the front side of the condenser 10 or the like by the side deflector 15. However, part of the hot air enters the inside of the cover main body 26m from the left and right ends of the front bumper 20 and tries to wrap around the front side of the condenser 10 through the space S.
  • partition plates 245 are formed at the left and right ends of the bumper absorber 24 of the front bumper 20, and the partition plates 245 cross the space S formed inside the cover main body 26m. It is formed in a substantially square shape. For this reason, the hot air which is going to wrap around the front side of the condenser 10 etc.
  • the partition plate portion 245 is made of the same material as the bumper absorber 24, it can be integrally formed, and the cost does not increase. Furthermore, since the notch 246 is formed between the partition plate portion 245 and the upper surface 241 u of the absorber main body portion 241, the partition plate portion 245 is opposed to the absorber main body portion 241 at the portion (connection portion 245 c) of the notch 246. It becomes easy to break. Further, the partition plate portion 245 is formed in an inclined state with respect to a virtual vertical wall surface W extending in the longitudinal direction of the vehicle body.
  • the partition plate portion 245 is broken at the portion of the notch 246 (the connection portion 245c) and falls backward. That is, the shock absorbing performance of the front bumper 20 is hardly degraded by the presence of the partition plate portion 245.
  • FIG. 5 (A) is a perspective view of the bumper absorber
  • FIG. 5 (B) is a plan view of the bumper absorber
  • FIG. 6 (A) is a sectional view taken along the line VIA-VIA in FIG. 5 (A)
  • FIG. B) is a cross-sectional view taken along the line VIB-VIB in FIG. 5 (A).
  • the bumper absorber 50 of the front bumper is, as shown in FIG. 5A, FIG. 6A, etc., an absorber main body 52 extending in the vehicle width direction and an upper surface 52u of the absorber main body 52 It comprises an overhang portion 54 extending upward along the front surface 22 f of the bumper reinforcement 22.
  • the vertical cross-sectional shape of the absorber main body 52 is formed in a trapezoidal shape in the horizontal direction, and the thickness dimension of the absorber main body 52 between the absorber main body 52 and the bumper reinforcement 22
  • the rear space Sb is formed to reduce the As shown in FIG.
  • the overhanging portion 54 is located above the bumper reinforcement 22 at a thin wall portion 54t covering the front surface 22f of the bumper reinforcement 22 and the vertical wall portion 54t. It is comprised from the thick upper end part 54u which overhangs.
  • the upper end portion 54 u of the overhanging portion 54 protrudes rearward with respect to the front surface 22 f of the bumper reinforcement 22 and is formed along the lower end surface 32 of the radiator grille 30 as shown in FIG. 5 (B).
  • a space S extending in the vehicle width direction is formed inside the cover main body 26m. . That is, a space S extending in the vehicle width direction is formed between the upper surface 52 u of the absorber main body 52 and the front surface of the projecting portion 54 and the inner wall surface of the cover main body 26 m.
  • thin partition plates that partition the space S formed inside the cover main body 26m in the vehicle width direction 58 are formed in a bowl shape.
  • the partition plate portion 58 is formed of the same material as the bumper absorber 50.
  • the hot air is blocked by the left and right partition plate portions 58 when passing from the left and right end portions of the front bumper through the space S to the front side of the condenser 10 and the like. As a result, the hot air is less likely to flow to the front side of the condenser 10 and the like.
  • the upper end portion 54 u of the overhanging portion 54 of the bumper absorber 50 is formed in a shape along the lower end surface 32 of the radiator grille 30 which protrudes rearward and is disposed on the upper side of the bumper cover 26. Therefore, the gap between the upper end portion 54 u of the projecting portion 54 of the bumper absorber 50 and the lower end surface 32 of the radiator grille 30 can be reduced.
  • the hot air from the engine compartment enters the space S from both sides in the width direction of the front bumper and moves to the central portion, the hot air flows between the upper end 54 u of the bumper 50 and the lower end face 32 of the radiator grille 30. It becomes difficult to discharge to the front side of the capacitor 10 etc. from the gap. As a result, the cooling efficiency of the condenser and the like does not decrease. Further, since the space S extending in the vehicle width direction is formed between the bumper absorber 50 and the bumper cover 26, the impact absorption performance of the bumper against an impact load does not deteriorate.
  • the present invention is not limited to the above embodiment, and changes can be made without departing from the scope of the present invention.
  • the pair of partition plate portions 245 and 58 are formed on the left and right sides of the bumper absorbers 24 and 50 has been described. It is also possible to provide a configuration. Also, an example is shown in which the notch 246 is formed between the partition plate portion 245 and the upper surface 241 u of the absorber main body portion 241 to make the partition plate portion 245 easily breakable with respect to the absorber main body portion 241. Alternatively, a thin-walled portion or the like may be provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention porte sur un pare-chocs avant pour une voiture qui est conçu de telle sorte qu'un air chaud provenant du compartiment de moteur ne peut pas circuler vers un côté de surface avant d'une capacité à travers un espace dans le pare-chocs avant, et de telle sorte que les mesures pour éviter le passage de l'air chaud ni n'altèrent l'absorption des chocs du pare-chocs avant, ni n'augmentent les coûts du pare-chocs avant. Le pare-chocs avant pour une voiture comporte un élément de renforcement de pare-chocs (22), un absorbeur de pare-chocs (24) qui est un élément d'amortissement et qui est monté sur la face avant de l'élément de renforcement de pare-chocs (22), et un revêtement de pare-chocs (26) qui recouvre l'absorbeur de pare-chocs (24) à partir de l'avant de la voiture. Des plaques de séparation (245) sont agencées sur des extrémités gauche et droite opposées de l'absorbeur de pare-chocs (24) de façon à se projeter depuis la surface périphérique externe de l'absorbeur de pare-chocs (24), et les plaques de séparation (245) séparent un espace formé sur le côté interne du revêtement de pare-chocs (26) en espaces situés dans la direction de la largeur de la voiture. Les plaques de séparation (245) sont construites dans le même matériau que l'absorbeur de pare-chocs (24) de façon à se courber par rapport à l'absorbeur de pare-chocs (24) lorsque celui-ci est soumis à une charge de collision appliquée à partir de l'avant de la voiture.
PCT/JP2009/055774 2008-08-18 2009-03-24 Pare-chocs avant pour voiture WO2010021174A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008209705A JP2010042783A (ja) 2008-08-18 2008-08-18 乗用車のフロントバンパ
JP2008-209705 2008-08-18

Publications (1)

Publication Number Publication Date
WO2010021174A1 true WO2010021174A1 (fr) 2010-02-25

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ID=41707056

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Application Number Title Priority Date Filing Date
PCT/JP2009/055774 WO2010021174A1 (fr) 2008-08-18 2009-03-24 Pare-chocs avant pour voiture

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WO (1) WO2010021174A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5548227B2 (ja) 2012-03-29 2014-07-16 本田技研工業株式会社 バンパ構造
JP6056738B2 (ja) * 2013-11-15 2017-01-11 マツダ株式会社 車両の前部構造
JP6048388B2 (ja) * 2013-12-17 2016-12-21 マツダ株式会社 自動車の前部構造
JP6339481B2 (ja) * 2014-11-10 2018-06-06 小島プレス工業株式会社 バンパアブソーバ及びシール構造
CN112659886B (zh) * 2021-01-04 2022-06-24 东风汽车股份有限公司 一种二横梁总成
JP2023042952A (ja) * 2021-09-15 2023-03-28 トヨタ自動車株式会社 車両

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935146U (ja) * 1982-08-30 1984-03-05 日産自動車株式会社 車両用バンパ
JPH11208389A (ja) * 1998-01-30 1999-08-03 Nissan Motor Co Ltd 自動車用バンパー
JP2006160015A (ja) * 2004-12-06 2006-06-22 Fuji Heavy Ind Ltd バンパ衝撃吸収部材
JP2007008190A (ja) * 2005-06-28 2007-01-18 Aisin Seiki Co Ltd 車両用可動グリルシャッタ装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935146U (ja) * 1982-08-30 1984-03-05 日産自動車株式会社 車両用バンパ
JPH11208389A (ja) * 1998-01-30 1999-08-03 Nissan Motor Co Ltd 自動車用バンパー
JP2006160015A (ja) * 2004-12-06 2006-06-22 Fuji Heavy Ind Ltd バンパ衝撃吸収部材
JP2007008190A (ja) * 2005-06-28 2007-01-18 Aisin Seiki Co Ltd 車両用可動グリルシャッタ装置

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