US20030218341A1 - Bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models - Google Patents

Bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models Download PDF

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Publication number
US20030218341A1
US20030218341A1 US10/380,962 US38096203A US2003218341A1 US 20030218341 A1 US20030218341 A1 US 20030218341A1 US 38096203 A US38096203 A US 38096203A US 2003218341 A1 US2003218341 A1 US 2003218341A1
Authority
US
United States
Prior art keywords
cover
bumper beam
vehicle
models
side flanges
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US10/380,962
Inventor
Martin Jonsson
Magnus Juntti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gestamp Hardtech AB
Original Assignee
SSAB Hardtech AB
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 SSAB Hardtech AB filed Critical SSAB Hardtech AB
Assigned to SSAB HARDTECH AB reassignment SSAB HARDTECH AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JONSSON, MARTIN, JUNTTI, MAGNUS
Publication of US20030218341A1 publication Critical patent/US20030218341A1/en
Priority to US10/781,178 priority Critical patent/US6863321B2/en
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • B60R2019/1826—Structural beams therefor, e.g. shock-absorbing made of metal of high-tension steel

Definitions

  • This invention relates to a bumper beam for a vehicle comprising a hat beam with a crown and side flanges, and a cover fastened to the side flanges, wherein the crown is fastened to the vehicle.
  • the invention relates also to a method of adapting a bumper beam to various vehicle models built on the same platform when the ground clearance is not the same for all the models.
  • the cover of the bumper beam extends past at least one of the side flanges and has transverse stiffening means.
  • the cover may be profiled transversely to provide for the stiffening means.
  • FIG. 1 is a top plan view of a bumper beam shown as an example of the invention.
  • FIG. 2 is a perspective view of the bumper beam shown in FIG. 1.
  • FIGS. 3 and 4 are transverse sections taken along lines 3 - 3 and 4 - 4 respectively in FIG. 1.
  • the bumper beam shown in the figures comprises a hat beam 10 with a crown 11 and side flanges 12 , 13 .
  • a cover 14 is fastened to side flanges, suitably by being spot-welded thereto.
  • the material in the hat beam and cover is formed sheet steel. Preferably, the material strength should be above 1200 N/mm 2 both in the cover and in the hat beam.
  • the hat beam has its crown facing the vehicle and the crown is fastened to the vehicle body. When the bumper is the front bumper, the bumper beam can be fastened directly to the ends of the side rails of the vehicle platform or to crash boxes 15 , 16 fastened to the side rails as shown.
  • the cover 14 extends with a portion 17 past the lower flange 13 as shown in FIGS. 3 and 4.
  • the cover 14 is instead shown vertically centered on the hat beam 11 .
  • the cover is transversely profiled, preferably by being trapezoidally shaped, and this profiling makes the cover transversely stiff, that is, vertically stiff.
  • Each individual trapezoidal profile can be considered as a stiffener.
  • the extending flange portion 17 will be strong enough to withstand being hit by the pendulum in the pendulum test.
  • the cover 14 can be wide enough to be hit by the pendulum both in the US pendulum test and the European pendulum test although the hat beam need not be that wide and the bumper will be only marginally heavier than a corresponding bumper that copes with only one of the pendulum tests.
  • the cover 14 is spot-welded to the hat beam 11 , its position in height of the cover 14 on the hat beam 11 can easily be adapted to variations in height of the platform above ground for variants of a vehicle model.
  • the same cover 14 can be used both for the car and the MPV.
  • the cover 14 can then for example be spot-welded to the hat beam 11 and extend above the hat beam whereas it can be spot-welded to extend below the hat beam for the MPV, which has its platform higher above the ground.
  • the cover has portions 20 , 21 that are not corrugated.
  • the portion 21 has a big hole through which a hook for towing may extend, which is fastened to the bottom of the hat beam.
  • the cover 14 may have its transverse corrugation over its entire length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Micromachines (AREA)
  • Connection Of Plates (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

A bumper beam for a vehicle comprises a hat beam (10) with a cover (14). The hat beam has a crown (11) and side flanges (11, 13), and the cover (14) is fastened to the side flanges. The crown is fastened to the vehicle body. The cover (14) extends past at least one of the side flanges (12, 13) and it is stiffened by being transversely corrugated.

Description

    TECHNICAL FIELD
  • This invention relates to a bumper beam for a vehicle comprising a hat beam with a crown and side flanges, and a cover fastened to the side flanges, wherein the crown is fastened to the vehicle. The invention relates also to a method of adapting a bumper beam to various vehicle models built on the same platform when the ground clearance is not the same for all the models. [0001]
    • BACKGROUND OF THE INVENTION
  • The tests of bumpers are not standardised between USA and Europe and bumpers that cope with all the tests are heavy, big and expensive. In particular, in the pendulum tests, the pendulum does not hit at the same height in the USA test as in the European test. Some car models have therefore not the same bumper when sold in the USA as when sold in the EU. Various car and MPV models built on the same platform will have different ground clearance, that is, the platform will be at various heights. Therefore, various models built on the same platform usually have different bumper beams. [0002]
    • OBJECT OF INVENTION AND BRIEF DESCRIPTION OF THE INVENTION
  • It is an object of invention to provide a bumper beam that is light in weight notwithstanding its large vertical extension. It is also an object to provide a bumper beam that can easily be adapted to vehicle models with different ground clearance and a method to adapt the bumper beam to such vehicles. To these ends, the cover of the bumper beam extends past at least one of the side flanges and has transverse stiffening means. The cover may be profiled transversely to provide for the stiffening means. One adapts the bumper beam to the various ground clearance by fastening the cover with different extension past at least one of the side flanges for different vehicle models. The invention is defined by the claims. [0003]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a top plan view of a bumper beam shown as an example of the invention. [0004]
  • FIG. 2 is a perspective view of the bumper beam shown in FIG. 1. [0005]
  • FIGS. 3 and 4 are transverse sections taken along lines [0006] 3-3 and 4-4 respectively in FIG. 1.
    • DESCRIPTION OF THE ILLUSTRATED AND PREFERRED EMBODIMENT OF THE INVENTION
  • The bumper beam shown in the figures comprises a [0007] hat beam 10 with a crown 11 and side flanges 12,13. A cover 14 is fastened to side flanges, suitably by being spot-welded thereto. The material in the hat beam and cover is formed sheet steel. Preferably, the material strength should be above 1200 N/mm2 both in the cover and in the hat beam. The hat beam has its crown facing the vehicle and the crown is fastened to the vehicle body. When the bumper is the front bumper, the bumper beam can be fastened directly to the ends of the side rails of the vehicle platform or to crash boxes 15,16 fastened to the side rails as shown.
  • The [0008] cover 14 extends with a portion 17 past the lower flange 13 as shown in FIGS. 3 and 4. In FIG. 1, the cover 14 is instead shown vertically centered on the hat beam 11. The cover is transversely profiled, preferably by being trapezoidally shaped, and this profiling makes the cover transversely stiff, that is, vertically stiff. Each individual trapezoidal profile can be considered as a stiffener. The extending flange portion 17 will be strong enough to withstand being hit by the pendulum in the pendulum test. Thus the cover 14 can be wide enough to be hit by the pendulum both in the US pendulum test and the European pendulum test although the hat beam need not be that wide and the bumper will be only marginally heavier than a corresponding bumper that copes with only one of the pendulum tests.
  • Since the [0009] cover 14 is spot-welded to the hat beam 11, its position in height of the cover 14 on the hat beam 11 can easily be adapted to variations in height of the platform above ground for variants of a vehicle model.
  • With the [0010] same hat beam 11 mounted on the side rails of a platform used for a car as well as for a MPV, the same cover 14 can be used both for the car and the MPV. For the car, the cover 14 can then for example be spot-welded to the hat beam 11 and extend above the hat beam whereas it can be spot-welded to extend below the hat beam for the MPV, which has its platform higher above the ground.
  • When there are big variation in ground clearance between vehicles built on the same platform, it might be necessary to use [0011] different covers 14, but such
  • In FIGS. 1 and 2 is shown that the cover has [0012] portions 20,21 that are not corrugated. The portion 21 has a big hole through which a hook for towing may extend, which is fastened to the bottom of the hat beam. The cover 14 may have its transverse corrugation over its entire length.

Claims (4)

1. A bumper beam for a vehicle comprising a hat beam (10) with a crown (11) and side flanges (12,13), and a cover (14) fastened to the side flanges, wherein the crown faces the vehicle and is fastened to the vehicle, characterised in that the cover (14) extends past at least one of the side flanges (12,13) and has transverse stiffening means.
2. A bumper beam according to claim 1, characterised in that the transverse stiffening means comprise transverse corrugation of the cover (14).
3. A method of adapting a bumper beam to various vehicle models built on the same platform when the ground clearance is not the same for all the models,
4. characterised in that a hat beam is used which is mounted to the platform with its crown and a cover wider than the hat beam is fastened to the side flanges of the hat beam and in that one adaptes the bumper beam to the various ground clearances of the various vehicle models by fastening the cover with different extension past at least one of the flanges for different models.
US10/380,962 2000-11-10 2001-10-16 Bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models Abandoned US20030218341A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/781,178 US6863321B2 (en) 2000-11-10 2004-02-18 Bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0004112A SE519503C2 (en) 2000-11-10 2000-11-10 Bumper rail
SE0004112-9 2000-11-10
PCT/SE2001/002239 WO2002038418A1 (en) 2000-11-10 2001-10-16 A bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/002239 A-371-Of-International WO2002038418A1 (en) 2000-11-10 2001-10-16 A bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/781,178 Continuation US6863321B2 (en) 2000-11-10 2004-02-18 Bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models

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US20030218341A1 true US20030218341A1 (en) 2003-11-27

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US10/380,962 Abandoned US20030218341A1 (en) 2000-11-10 2001-10-16 Bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models
US10/781,178 Expired - Lifetime US6863321B2 (en) 2000-11-10 2004-02-18 Bumper beam for a vehicle and a method of adapting a bumper beam to various vehicle models

Family Applications After (1)

Application Number Title Priority Date Filing Date
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US (2) US20030218341A1 (en)
EP (1) EP1335844B1 (en)
JP (1) JP4370095B2 (en)
KR (1) KR100784583B1 (en)
AT (1) ATE428606T1 (en)
AU (1) AU2001296129A1 (en)
DE (1) DE60138409D1 (en)
ES (1) ES2323944T3 (en)
SE (1) SE519503C2 (en)
WO (1) WO2002038418A1 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
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US20050110240A1 (en) * 2003-11-21 2005-05-26 Dornbos Robert J. Towing apparatus with energy absorber
WO2005080141A1 (en) * 2004-02-25 2005-09-01 Gestamp Hardtech Ab A bumper beam for a vehicle
US6971691B1 (en) 2004-06-25 2005-12-06 Shape Corporation Vehicle bumper beam
US20050285416A1 (en) * 2004-06-25 2005-12-29 Heatherington David W Vehicle bumper beam
US20060290149A1 (en) * 2005-06-24 2006-12-28 Benteler Automobiltechnik Gmbh Bumper for a motor vehicle
US20070102942A1 (en) * 2003-12-08 2007-05-10 Per Muskos Bumper beam and a vehicle with such a beam
US7228723B2 (en) * 2004-07-01 2007-06-12 Netshape Energy Management Llc Bumper impact-testing device
WO2008024756A2 (en) * 2006-08-21 2008-02-28 Shape Corporation Bumper beam crush tower with corner impact attributes
US20090085362A1 (en) * 2007-10-01 2009-04-02 Mazda Motor Corporation Vehicle structure for automobile
US7552955B2 (en) 2005-05-02 2009-06-30 Netshape Energy Management, Llc Hybrid bumper with trim
US20100066124A1 (en) * 2008-09-18 2010-03-18 Mazda Motor Corporation Vehicle body structure
US20110121585A1 (en) * 2006-10-10 2011-05-26 Stefan Loveborn Bumper beam
DE102013200073A1 (en) * 2012-09-03 2014-03-06 Magna International Inc. bumper beam
US20140354008A1 (en) * 2013-06-03 2014-12-04 Toyota Jidosha Kabushiki Kaisha Vehicle body front portion structure
US10086785B2 (en) * 2016-08-26 2018-10-02 Ford Global Technologies, Llc Frontal shield system for enhanced vehicle compatibility performance
US20210053519A1 (en) * 2019-08-23 2021-02-25 Volvo Car Corporation Mounting arrangement for coupling a bumper beam to a crash box and side rail of a vehicle
US11208064B2 (en) * 2017-12-18 2021-12-28 Gestamp Hardtech Ab Crash box for a bumper

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FR2829734B1 (en) * 2001-09-20 2004-01-23 Peguform France BUMPER BEAM FOR VEHICLE COMPRISING A CROSSING AND TWO SHOCK ABSORBERS
DE10327008B3 (en) * 2003-06-12 2005-01-13 Benteler Automobiltechnik Gmbh Bumper for a motor vehicle
SE0401460L (en) * 2004-06-09 2005-07-26 Gestamp Hardtech Ab Crash box for vehicles
US7665777B2 (en) 2004-07-01 2010-02-23 Magna International Inc. Bumper beam for a motor vehicle
EP1721786B1 (en) * 2005-05-13 2012-03-28 Constellium Switzerland AG Bumper system
SE529105C2 (en) * 2005-09-23 2007-05-02 Gestamp Hardtech Ab Impact box and way to attach a bumper beam
JP2009513439A (en) * 2005-10-26 2009-04-02 メリディアン オートモーティブ システムズ，インコーポレイテッド Bumper system
SE529533C2 (en) * 2006-01-24 2007-09-04 Gestamp Hardtech Ab Car crash box
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JP4735843B2 (en) 2006-06-29 2011-07-27 マツダ株式会社 Automotive bumper structure
SE530206C2 (en) * 2006-08-15 2008-03-25 Gestamp Hardtech Ab Bumper beam
DE102006048429A1 (en) * 2006-10-12 2008-04-17 Magna Automotive Services Gmbh Energy absorption device, in particular for non-axial load
SE531022C2 (en) * 2007-05-30 2008-11-18 Gestamp Hardtech Ab Bumper beam
SE531020C2 (en) 2007-05-30 2008-11-18 Gestamp Hardtech Ab Bumper beam
FR2925431A3 (en) * 2007-12-21 2009-06-26 Renault Sas Impact e.g. low intensity impact, absorbing system for motor vehicle, has deformable monolithic assemblies connected by elastic strip that absorbs low intensity impacts at front face of vehicle, and radiator positioned between assemblies
DE102008059750B4 (en) * 2008-12-01 2017-08-31 Benteler Automobiltechnik Gmbh bumper
DE102009004827B4 (en) * 2009-01-13 2017-02-02 Benteler Automobiltechnik Gmbh bumper
ITBO20110137A1 (en) * 2011-03-21 2012-09-22 Pasquale Impero SHOCK ABSORBER FOR MOTOR VEHICLES
RU2481208C2 (en) * 2011-06-30 2013-05-10 Государственное образовательное учреждение высшего профессионального образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) Car protective bumper
DE102011112256A1 (en) * 2011-09-02 2013-03-07 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Motor vehicle with crash box
JP2013067324A (en) * 2011-09-26 2013-04-18 Aisin Seiki Co Ltd Crash box and vehicle bumper apparatus including the same
RU2506177C2 (en) * 2012-03-22 2014-02-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) Car protective bumper
DE102012215598B4 (en) * 2012-09-03 2019-02-14 Magna International Inc. impact beams
SE537087C2 (en) * 2013-03-13 2014-12-30 Gestamp Hardtech Ab Bumper beam
US9211858B2 (en) * 2013-10-11 2015-12-15 Shape Corp. Beam with varied bending moment, apparatus, and method
WO2015133949A1 (en) * 2014-03-05 2015-09-11 Gestamp Hardtech Ab Bumper beam with embossed cover
CN107848475B (en) * 2015-07-08 2020-08-25 日本制铁株式会社 Bumper reinforcement and vehicle provided with same
KR101880825B1 (en) * 2016-12-29 2018-07-20 한화첨단소재 주식회사 Reinforced device in bumper beam for vehicle with enhanced crash capability and bumper beam asssembly for comprising thereof
FR3064229B1 (en) 2017-03-24 2021-06-25 Peugeot Citroen Automobiles Sa SPECIFIC CONFIGURATION OF A VEHICLE SHOCK ABSORPTION SYSTEM
CN108944759B (en) * 2018-07-09 2020-06-23 郑文平 Method for reducing automobile impact force

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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050110240A1 (en) * 2003-11-21 2005-05-26 Dornbos Robert J. Towing apparatus with energy absorber
US20080023938A1 (en) * 2003-11-21 2008-01-31 Dornbos Robert J Towing apparatus with energy absorber
US7290783B2 (en) 2003-11-21 2007-11-06 Shape Corporation Towing apparatus with energy absorber
US20070102942A1 (en) * 2003-12-08 2007-05-10 Per Muskos Bumper beam and a vehicle with such a beam
US7316432B2 (en) * 2003-12-08 2008-01-08 Gestamp Hardtech Ab Bumper beam and a vehicle with such a beam
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JP4370095B2 (en) 2009-11-25
ES2323944T3 (en) 2009-07-28
EP1335844B1 (en) 2009-04-15
AU2001296129A1 (en) 2002-05-21
US6863321B2 (en) 2005-03-08
JP2004513020A (en) 2004-04-30
SE0004112L (en) 2002-05-11
KR100784583B1 (en) 2007-12-10
ATE428606T1 (en) 2009-05-15
KR20030048102A (en) 2003-06-18
WO2002038418A1 (en) 2002-05-16
SE0004112D0 (en) 2000-11-10
SE519503C2 (en) 2003-03-04
DE60138409D1 (en) 2009-05-28
EP1335844A1 (en) 2003-08-20
US20040189023A1 (en) 2004-09-30

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