WO2003080398A1 - Poutre pare-chocs avec absorbeur d'energie pour vehicule automobile - Google Patents
Poutre pare-chocs avec absorbeur d'energie pour vehicule automobile Download PDFInfo
- Publication number
- WO2003080398A1 WO2003080398A1 PCT/FR2003/000953 FR0300953W WO03080398A1 WO 2003080398 A1 WO2003080398 A1 WO 2003080398A1 FR 0300953 W FR0300953 W FR 0300953W WO 03080398 A1 WO03080398 A1 WO 03080398A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bumper beam
- profile
- beam according
- casing
- absorber housing
- Prior art date
Links
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
-
- 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
-
- 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
Definitions
- the invention relates to a bumper beam intended in particular to form part of a front face of a motor vehicle.
- bumper beam which can be called “hybrid beam”, since it is formed from a hybrid material from a profile, with an open section.
- Bumper beams of this type consist of a metal section with open section, generally in the form of a C, forming an insert. This profile is overmolded and / or reinforced with a molding material, usually a possibly reinforced plastic material.
- Current vehicles receive a front face, that is to say a structural element capable of integrating various vehicle equipment, such as headlights, turn signals, horn, heat exchange module, etc.
- the front panel thus provided with its equipment, constitutes a unitary module prepared and delivered by the supplier, and ready to be mounted on the vehicle by the manufacturer.
- the mounting of this unitary module is done by connection to lateral structural elements of the vehicle, such as side rails, wings, hulls, then fitting of a bumper attached to the module.
- the front face usually receives the bumper beam on which is subsequently mounted the "bumper proper, also called frontal shield.
- the front panel module must meet crash test (crash resorter) requirements, namely not to deform the structure of the vehicle, minimize the damage to components and thus reduce repair costs. In addition, this module must ensure the safety of the occupants and that of the pedestrians.
- the front face and the bumper beam constitute essential elements which participate respectively in the structure of the vehicle and of the module and in its protection.
- the bumper beam has several roles. It must participate in the structure of the vehicle and protect the passengers of the vehicle in the event of an impact with an external obstacle, as well as the equipment of the vehicle, in particular in order to reduce the cost of repairs in the event of an accident. Conversely, the function of the bumper beam is to reduce the aggressiveness of the vehicle, in particular towards pedestrians, by absorbing the impact energy as much as possible so as to minimize the seriousness of the injuries inflicted on them.
- these absorber boxes generally consist of deformable elements which are intended to absorb the energy of a frontal impact.
- the assembly thus formed by the bumper beam and the absorber boxes constitutes a heavy and bulky assembly which becomes difficult to accept in modern vehicles which are more and more compact.
- an energy-absorbing deformation element intended for the protection of a motor vehicle body. This element consists of a bumper which is connected to the side members of the vehicle by means of a housing filled with aluminum foam.
- the object of the invention is in particular to overcome the aforementioned drawbacks.
- a bumper beam of the hybrid type, which is capable of being associated with at least one absorber housing to form an assembly having high performance with regard to low weight and reduced bulk.
- the invention provides a bumper beam of the type defined in the introduction, which comprises at least one absorber housing integrated into the bumper beam, which is housed at least partly in the open section of the profile and which comprises a envelope suitable for being filled with a metallic foam having energy absorbing properties.
- absorber occupies at least partially the free volume defined in the open section of the profile, this makes it possible to reduce the size, in particular in the longitudinal direction, of the assembly constituted by the hybrid beam and the absorber housing. It is thus possible, with constant bulk, compared to known solutions, to increase the impact resistance performance.
- the profile is advantageously a metal section with a general section in the form of a C or U forming an insert which is overmolded and / or reinforced by a molding material by a technique of hybridization of the material of the profile and of the molding material.
- hybridization technique is intended to denote any technique which makes it possible to closely associate a molding material, generally a plastic material, with an insert, most often metallic, thus eliminating any fixing or mounting operation. .
- HLE high elastic limit steel
- a plastic material advantageously chosen from thermoplastics and thermosetting materials is used, with or without reinforcement.
- the plastic material is chosen from polyamides, in particular polyamide-6, and polypropylenes.
- the plastic it is advantageous to reinforce it with an appropriate material, in particular with glass fibers.
- the molding material forms stiffening ribs in the open section of the profile. This contributes to the mechanical strength of the beam.
- the envelope of the absorber housing is advantageously made of a molding material. It is preferably the same material as that defined above for the bumper beam.
- this envelope in another material, for example steel.
- the envelope of the absorber housing is overmolded and / or connected to the material of the profile.
- the material of the envelope is the same as the molding material overmolded on the bumper beam.
- the shell of the absorber box is completely integrated into the bumper beam by hybridization.
- the envelope of the absorber housing is fixed in the open section of the profile. It follows that the envelope of the absorber housing is not necessarily made of the same molding material as that which is overmolded on the profile.
- the envelope of the absorber housing is advantageously integrated into an element ' of the front face. This means, in other words, that the envelope can be produced with this element of the front face by a molding technique, possibly with hybridization.
- the envelope of the absorber housing is advantageously produced in the form of a hollow section of generally rectangular section, in particular square, which has a first end attached to the bumper beam and a second end suitable for being fixed to the vehicle structure, in particular at the end of a longitudinal beam.
- the casing of the housing is capable of being filled, at least in part, with a metallic foam endowed with absorbent properties.
- the casing of the housing is overmolded on this metal foam.
- an aluminum foam in particular aluminum of the 6000 or 300 series, is preferred.
- Figure 1 is a view of a bumper beam and absorber housing assembly according to the invention mounted on a front panel module of a motor vehicle;
- Figure 2 is a partial perspective view of a bumper beam and absorber housing assembly according to a first embodiment of the invention;
- FIG. 3 is a longitudinal sectional view of the assembly of Figure 2 showing the attachment of the absorber housing to a front face of a motor vehicle;
- FIG. 4 is a perspective view of an absorber housing integrated with a front face element in a second embodiment of the invention;
- FIG. 5 is a longitudinal sectional view of the assembly of Figure 4, the assembly being equipped with the bumper beam and being fixed to the vehicle structure;
- FIG. 6 is partial rear views of different bumper beams showing different configurations of stiffening ribs.
- the element shown comprises a bumper beam 10 constituted by a hollow profile, in the general shape of a C or of a U, in which is housed at least partially an absorber housing 12. It as a result, the overall size L of the assembly in the longitudinal direction of the absorber housing is slightly greater than the length of the absorber housing.
- the absorber unit 12 is fixed to the structure of a motor vehicle, here at the end of a lower spar 14, on which is also fixed a front face module 15.
- the bumper beam 10 is intended to receive a bumper 17, also called a front shield.
- FIGS. 2 and 3 describe a first embodiment of the invention.
- the bumper beam 10 is a hybrid beam which integrates the absorber box 12.
- the beam 10 comprises a section 16 with an open section in the general shape of C.
- This profile 16, which forms an insert, comprises a generally vertical core 18 extended by two wings, namely an upper wing 20 substantially horizontal and a lower wing 22 substantially horizontal.
- This profile 16 thus delimits a hollow space in which is housed at least partially the absorber box 12, as seen in Figures 2 and 3.
- the profile 16 is advantageously made of steel, in particular of high elastic limit steel (HLE). This steel profile is overmolded and / or reinforced with a molding material
- the absorber housing 12 comprises a casing 30 which, in the example, is produced in the form of a hollow section of generally rectangular section bounded by a lower face 32, an upper face 34 and two lateral faces 36.
- This casing is, in the example, also produced in the same molding material as that which is overmolded on the metal profile.
- the casing 30 and the inner 26 and outer 28 coatings of the profile form an assembly which is molded and integrated into the profile by a hybridization technique.
- the molding material forms stiffening ribs inside the open section of the profile.
- These ribs here comprise horizontal ribs 35 and vertical ribs 37.
- horizontal ribs 39 connect the faces 36 of the casing 30.
- the interior of the envelope can advantageously be filled, at least in part, with a metal foam 38 which is, in the example, aluminum foam.
- a metal foam 38 which is, in the example, aluminum foam.
- the envelope 30 is overmolded on the metal foam 38.
- the casing 30 thus has a first end 40 which is housed inside the open section of the profile and a second end 42 which ends in an open face and which is intended to be fixed at the end of a spar 14.
- a support plate 44 on which two spaced wings 46 depend (only one is visible in FIG. 3) clipping inside the faces 36 of the casing 30.
- the plate 44 is fixed at the end of the side member 14 by screws 48 which pass through the thickness of the plate 44.
- the plate 44 traps the core 50 of an element 52 of a front panel module.
- the casing 30 of the absorber housing 12 is integrated into an element 54 forming part of a front panel module.
- This element 54 comprises a shaped core 56, from which extends the casing 30 in the form of a profile with a generally rectangular section.
- This core 56 is extended by different arms, in particular by two upper arms 58 and 60 which will not be described in detail.
- the core 56 is pierced with four holes 62 ( Figure 5) for its attachment to the end of a profile 14 with the interposition of a fixing plate 44 similar to that described in Figure 3.
- the element 54 and the envelope 30 of the absorber housing constitute a one-piece assembly produced by a hybridization technique.
- This element 54 may include a metal insert overmolded by a molding material which forms different parts of the structure and in particular the casing 30.
- FIG. 5 shows, in exploded view, the fixing of the element 54 on the beam 14 with interposition of the plate 44.
- the envelope 30 is similar to that of the previous embodiment. It comprises an end 40 which is housed in the open section of the beam and an opposite end 42 which is connected at the end of the beam. However, in this embodiment, the end 42 is made in one piece with the element 54.
- the beam 12 which comes to cap the end 40 can be fixed to the latter by any suitable means, for example with the interposition of a fixing plate similar to the plate 44 described above.
- the bumper beam 10 has, inside its open section, a housing 68 for receiving the end 40 of the casing 30 of the absorber housing.
- the stiffening ribs are oblique ribs 70.
- the interior of the open section of the beam is reinforced by vertical ribs 72.
- This provides a beam assembly, bumper with absorber which has high performance with regard to its weight and size.
- the plastic material used for molding is advantageously a polyamide, in particular polyamide-6, or a polypropylene. This plastic material is advantageously reinforced with glass fibers.
- a PA 6 GF 30 or a PP GF 30 is used.
- the metal profile forming an insert must have an optimized geometry since an optimal inertia of the section is desirable to minimize deflection.
- Examples 1 and 2 are examples comparatives concerning bumper beams not in accordance with the invention, while example 3 relates to a bumper beam according to the invention.
- Example 1 steel bumper beam
- a steel bumper beam is produced from a closed section profile fixed to the side members of the vehicle, which include conventional absorber boxes.
- the beam As a result, 58% of energy is absorbed by the beam and 42% by the beams which include the absorber boxes.
- the weight of the beam is 5.7 kilograms.
- Example 2 Aluminum bumper beam with aluminum absorber boxes
- a bumper beam is produced from a closed section aluminum profile. This profile is fixed to the side members of the vehicle by means of aluminum absorber boxes. The weight of the beam is 2.7 kg and the two absorber boxes 1.08 kg.
- the energy absorbed by the beam is 4100 joules, that absorbed by the absorber boxes 5230, the total being 9330 joules.
- the dimensions of the absorber box are 130 x 70 x 60 mm (in the X, Y and Z directions).
- the weight of the beam here is 2.5 kilograms.
- the bumper beam is here in accordance with the invention.
- the energy absorbed by the beam is 1320 joules, that absorbed by the absorber box is 8040 joules, that absorbed by the ribs by 240 joules, the total being 9600 joules.
- the dimensions of the absorber box are 190 x 60 x 70 mm (in the X, Y and Z directions).
- Aluminum is an aluminum from the 6000-7000 series.
- the thickness of the metal insert can vary between 0.7 and 1.2 mm depending on the characteristics of the steel.
- an aluminum foam of different densities can be used.
- the beam with absorbent boxes filled with aluminum foam absorbs 1.6, 2.5 and 3 times more energy than the beam alone for densities of 0.2, 0.3 and 0.4 g / cm respectively 3 .
- the intrusion is reduced by 37%, 50% and 58% for densities of 0.2, 0.3 and 0.4 g / cm 3 respectively .
- the invention thus finds an application to motor vehicles.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03738200A EP1487671A1 (de) | 2002-03-26 | 2003-03-25 | Energiabsorbierende stossstange für ein kraftfahrzeug |
JP2003578186A JP2005520735A (ja) | 2002-03-26 | 2003-03-25 | エネルギー吸収体を備えた自動車のバンパビーム |
AU2003244717A AU2003244717A1 (en) | 2002-03-26 | 2003-03-25 | Bumper beam with shock absorber for motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR02/03768 | 2002-03-26 | ||
FR0203768A FR2837762B1 (fr) | 2002-03-26 | 2002-03-26 | Poutre pare-chocs avec absorbeur d'energie pour vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003080398A1 true WO2003080398A1 (fr) | 2003-10-02 |
Family
ID=27839202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/000953 WO2003080398A1 (fr) | 2002-03-26 | 2003-03-25 | Poutre pare-chocs avec absorbeur d'energie pour vehicule automobile |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1487671A1 (de) |
JP (1) | JP2005520735A (de) |
AU (1) | AU2003244717A1 (de) |
FR (1) | FR2837762B1 (de) |
WO (1) | WO2003080398A1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006068008A1 (ja) * | 2004-12-24 | 2006-06-29 | Aisin Seiki Kabushiki Kaisha | バンパ及び車両の衝撃吸収構造 |
WO2008020794A1 (en) * | 2006-08-15 | 2008-02-21 | Gestamp Hardtech Ab | A bumper beam |
WO2008020795A1 (en) * | 2006-08-15 | 2008-02-21 | Gestamp Hardtech Ab | A bumper beam for a vehicle |
US7625022B2 (en) * | 2006-05-17 | 2009-12-01 | Avelda S.R.L. | Vehicle bumper assembly and associated vehicle comprising this bumper assembly |
CN104010886A (zh) * | 2011-12-13 | 2014-08-27 | 丰田铁工株式会社 | 车辆用保险杠梁 |
US20150274101A1 (en) * | 2014-03-26 | 2015-10-01 | Aisin Seiki Kabushiki Kaisha | Bumper reinforcement |
CN111137233A (zh) * | 2020-01-03 | 2020-05-12 | 宁波吉利汽车研究开发有限公司 | 一种前防撞梁总成及汽车 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004032802A1 (de) * | 2004-07-07 | 2006-02-16 | Adam Opel Ag | Verbindungselement |
FR2889136B1 (fr) * | 2005-07-28 | 2008-10-03 | Valeo Systemes Thermiques | Dispositif d'absorption d'energie notamment pour poutre pare-chocs de vehicule automobile |
KR101550416B1 (ko) * | 2009-03-19 | 2015-09-04 | 현대모비스 주식회사 | 하이브리드 범퍼 |
KR101470174B1 (ko) * | 2013-06-26 | 2014-12-05 | 현대자동차주식회사 | 차량의 로어스티프너 및 그 제조방법 |
KR102194218B1 (ko) * | 2017-11-29 | 2020-12-22 | 롯데케미칼 주식회사 | 자동차용 범퍼 빔 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3842944A (en) * | 1972-06-09 | 1974-10-22 | Sumitomo Chemical Co | Shock absorber for automobiles |
US3887223A (en) * | 1972-12-20 | 1975-06-03 | Porsche Ag | Collision energy dissipation apparatus for a passenger motor vehicle |
US5116092A (en) * | 1988-09-29 | 1992-05-26 | Bayerische Motoren Werke Ag | Bumper arrangement for motor vehicles, particularly passenger cars |
DE19502307A1 (de) * | 1994-04-08 | 1995-10-19 | Gerhardi & Cie Gmbh & Co Kg | Energieabsorbierendes Deformationselement zum Schutz der Kraftfahrzeugkarosserie |
DE19736803A1 (de) * | 1997-08-23 | 1998-02-05 | Audi Ag | Deformationselement |
WO2001000478A1 (de) * | 1999-06-23 | 2001-01-04 | Dynamit Nobel Kunststoff Gmbh | Frontendmodul für ein kraftfahrzeug |
US6299226B1 (en) * | 2000-08-10 | 2001-10-09 | Benteler Ag | Bumper |
US6308999B1 (en) * | 1998-07-21 | 2001-10-30 | Alcoa Inc. | Multi-material hybrid bumper |
-
2002
- 2002-03-26 FR FR0203768A patent/FR2837762B1/fr not_active Expired - Fee Related
-
2003
- 2003-03-25 AU AU2003244717A patent/AU2003244717A1/en not_active Abandoned
- 2003-03-25 JP JP2003578186A patent/JP2005520735A/ja active Pending
- 2003-03-25 WO PCT/FR2003/000953 patent/WO2003080398A1/fr not_active Application Discontinuation
- 2003-03-25 EP EP03738200A patent/EP1487671A1/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3842944A (en) * | 1972-06-09 | 1974-10-22 | Sumitomo Chemical Co | Shock absorber for automobiles |
US3887223A (en) * | 1972-12-20 | 1975-06-03 | Porsche Ag | Collision energy dissipation apparatus for a passenger motor vehicle |
US5116092A (en) * | 1988-09-29 | 1992-05-26 | Bayerische Motoren Werke Ag | Bumper arrangement for motor vehicles, particularly passenger cars |
DE19502307A1 (de) * | 1994-04-08 | 1995-10-19 | Gerhardi & Cie Gmbh & Co Kg | Energieabsorbierendes Deformationselement zum Schutz der Kraftfahrzeugkarosserie |
DE19736803A1 (de) * | 1997-08-23 | 1998-02-05 | Audi Ag | Deformationselement |
US6308999B1 (en) * | 1998-07-21 | 2001-10-30 | Alcoa Inc. | Multi-material hybrid bumper |
WO2001000478A1 (de) * | 1999-06-23 | 2001-01-04 | Dynamit Nobel Kunststoff Gmbh | Frontendmodul für ein kraftfahrzeug |
US6299226B1 (en) * | 2000-08-10 | 2001-10-09 | Benteler Ag | Bumper |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006068008A1 (ja) * | 2004-12-24 | 2006-06-29 | Aisin Seiki Kabushiki Kaisha | バンパ及び車両の衝撃吸収構造 |
US8136855B2 (en) | 2006-05-17 | 2012-03-20 | Vm Plastics S.R.L. | Vehicle bumper assembly and associated vehicle comprising this bumper assembly |
US7625022B2 (en) * | 2006-05-17 | 2009-12-01 | Avelda S.R.L. | Vehicle bumper assembly and associated vehicle comprising this bumper assembly |
EP2054272A4 (de) * | 2006-08-15 | 2009-11-04 | Gestamp Hardtech Ab | Stossfängerstange |
KR101425913B1 (ko) | 2006-08-15 | 2014-08-01 | 게스탐프 하르트테크 아베 | 차량용 범퍼 비임 |
WO2008020795A1 (en) * | 2006-08-15 | 2008-02-21 | Gestamp Hardtech Ab | A bumper beam for a vehicle |
JP2010500230A (ja) * | 2006-08-15 | 2010-01-07 | イェスタムプ・ハードテック・アクチエボラーグ | バンパー・ビーム |
US7954863B2 (en) | 2006-08-15 | 2011-06-07 | Gestamp Hardtech Ab | Bumper beam for a vehicle |
WO2008020794A1 (en) * | 2006-08-15 | 2008-02-21 | Gestamp Hardtech Ab | A bumper beam |
KR101425917B1 (ko) | 2006-08-15 | 2014-08-01 | 게스탐프 하르트테크 아베 | 범퍼 비임 |
EP2054272A1 (de) * | 2006-08-15 | 2009-05-06 | Gestamp HardTech AB | Stossfängerstange |
US10093254B2 (en) | 2006-08-15 | 2018-10-09 | Gestamp Hardtech Ab | Bumper beam |
CN104010886B (zh) * | 2011-12-13 | 2016-05-04 | 丰田铁工株式会社 | 车辆用保险杠梁 |
CN104010886A (zh) * | 2011-12-13 | 2014-08-27 | 丰田铁工株式会社 | 车辆用保险杠梁 |
US20150274101A1 (en) * | 2014-03-26 | 2015-10-01 | Aisin Seiki Kabushiki Kaisha | Bumper reinforcement |
US9573542B2 (en) * | 2014-03-26 | 2017-02-21 | Aisin Seiki Kabushiki Kaisha | Bumper reinforcement |
CN111137233A (zh) * | 2020-01-03 | 2020-05-12 | 宁波吉利汽车研究开发有限公司 | 一种前防撞梁总成及汽车 |
CN111137233B (zh) * | 2020-01-03 | 2022-06-14 | 浙江吉利控股集团有限公司 | 一种前防撞梁总成及汽车 |
Also Published As
Publication number | Publication date |
---|---|
FR2837762A1 (fr) | 2003-10-03 |
AU2003244717A1 (en) | 2003-10-08 |
EP1487671A1 (de) | 2004-12-22 |
JP2005520735A (ja) | 2005-07-14 |
FR2837762B1 (fr) | 2004-12-10 |
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