WO2003104030B1 - Bumper with integrated energy absorber and beam - Google Patents

Bumper with integrated energy absorber and beam

Info

Publication number
WO2003104030B1
WO2003104030B1 PCT/US2003/017835 US0317835W WO03104030B1 WO 2003104030 B1 WO2003104030 B1 WO 2003104030B1 US 0317835 W US0317835 W US 0317835W WO 03104030 B1 WO03104030 B1 WO 03104030B1
Authority
WO
WIPO (PCT)
Prior art keywords
bumper system
system defined
energy absorber
mounts
sections
Prior art date
Application number
PCT/US2003/017835
Other languages
French (fr)
Other versions
WO2003104030A3 (en
WO2003104030A2 (en
Inventor
Darin Evans
Original Assignee
Netshape Corp
Shape Corp
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
Priority claimed from US10/163,838 external-priority patent/US6663150B1/en
Priority claimed from US10/294,124 external-priority patent/US6709036B1/en
Application filed by Netshape Corp, Shape Corp filed Critical Netshape Corp
Priority to MXPA04012007A priority Critical patent/MXPA04012007A/en
Priority to CA002485712A priority patent/CA2485712A1/en
Priority to EP03757371A priority patent/EP1509423A4/en
Priority to AU2003248628A priority patent/AU2003248628A1/en
Priority to JP2004511120A priority patent/JP2005528286A/en
Publication of WO2003104030A2 publication Critical patent/WO2003104030A2/en
Publication of WO2003104030A3 publication Critical patent/WO2003104030A3/en
Publication of WO2003104030B1 publication Critical patent/WO2003104030B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/56—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting securing to the vehicle bumper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/52—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting removably mounted
    • 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
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • 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
    • 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
    • B60R2019/1866—Cellular structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Vibration Dampers (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A bumper system includes a tubular beam with flattened end sections, and further includes an energy absorber having a rear recess mateably receiving the tubular beam in a nested relationship, with the recess also including flat mating surfaces engaging the flattened end sections. Mounts engage a rear of the flattened end sections, and fasteners secure the tubular beam and energy absorber to the mounts. In one modified bumper system, corner sections on the energy absorber are shaped to slidingly engage a side surface of the mount and simultaneously an end of the beam upon corner impact of the vehicle. In another modified bumper system, offset ends of the tubular beam fit into a recess in an energy absorber, with its center section being between vehicle mounts.

Claims

[Received by the International Bureau on 19 October 2004 (19.10.04) original claims 1-62 unchanged; claims 63-99 added (6 pages)], wherein the downwardly angled bottom first segment folds rearwardly over a wherein the downwardly angled bottom first segment folds rearwardly over a bottom face of the rail during a front impact of the forwardly extending bottom second segment.
59. The bumper system defined in claim 58, wherein the metal beam is tubular and includes front, rear, top, and bottom walls, and the rail has a rear surface with a recess mateably ieceiving the tubular beam therein.
60. The bumper system defined in claim 58, wherein the energy absorber includes a rail encapsulating the tubular beam.
61. The bumper system defined in claim 60, wherein the rail is U-shaped.
62. The bumper system defined in claim 61, wherein a front wall of the rail includes apertures therethrough.
63. A bumper system comprising: a tubular beam with front, rear, top, and bottom walls, the front and rear walls being reformed at ends of the tubular beam to form flattened end sections; an energy absorber having a rear surface with a recess mateably receiving the tubular beam, the recess including mating flat surfaces engaging a front of the flattened end sections; mounts engaging a rear of the flattened end sections; and fasteners securing the tubular beam and energy absorber to the mounts.
64. The bumper system defined in claim 63, wherein the mounts include flat plates that engage the rear of the flattened end sections.
65. The bumper system defined in claim 63, wherein the energy absorber includes a rearwardly-facing U-shaped section of non-foam polymeric material that defines top and bottom portions of the recess.
66. The bumper system defined in claim 65, wherein the energy absorber includes 26 foam sections of material that cover at least three sides of the rearwardly-facing U- shaped section.
67. The bumper system defined in claim 66, wherein the U-shaped section defines a horizontal rail on the energy absorber.
68. The bumper system defined in claim 63, wherein the energy absorber includes structure adapted to support headlight cans and further includes through-holes for passing light from the headlight cans.
69. The bumper system defined in claim 63, wherein the fasteners include shafts that extend through the energy absorber and through the beam ends into the mounts,
70. The bumper system defined in claim 63, wherein the energy absorber includes corner sections forming at least one honeycomb-shaped structure for absorbing impact energy during a vehicle crash, the corner sections extending around and rearward of the ends of the beam.
71. The bumper system defined in claim 70, wherein the corner sections include a portion located proximate the mounts, the corner sections being configured to flex, engage and slide on a side of the mounts during a corner impact that is directed along a line angled with respect of a length of the mounts, and being configured to engage and crush against the mounts during a front impact that is parallel a length of the mounts.
72. A bumper system for a vehicle comprising: a beam having front, rear, top, and bottom walls defining a tubular center section and having end sections; a one-piece energy absorber having an absorber center section with a rear-facing recess mateably receiving the tubular center section and engaging portions of the front, top and bottom walls; and further having corner sections with an interior surface located proximate an outer end of the end sections of the beam; mounts engaging a rear of the end sections, the interior surface of the corner sections being positioned to engage the outer end of the beam and to simultaneously engage an outer side surface of the mounts when the vehicle experiences a corner impact; and fasteners that secure the tubular beam and energy absorber to the mounts.
73. The bumper system defined in claim 72, wherein the corner sections include a portion located proximate the mounts, the corner sections being configured to flex, engage, and slide on a side of the mounts during a corner impact that is directed along a line angled with respect of a length of the mounts, and being configured to engage and crush against the mounts during a front impact that is parallel a length of the mounts.
74. The bumper system defined in claim 72, wherein the energy absorber includes a rearwardly-facing U-shaped section of non-foam polymeric material that defines top and bottom portions of the recess.
75. The bumper system defined in claim 74, wherein the energy absorber includes foam sections of material that cover at least three sides of the rearwardly-facing U- shaped section.
76. The bumper system defined in claim 74, wherein the U-shaped section defines a horizontal rail on the energy absorber.
77. The bumper system defined in claim 72, wherein the energy absorber includes structure adapted to support headlight cans and further includes through-holes for passing light from the headlight cans.
78. The bumper system defined in claim 72, wherein the fasteners includes shafts that extend through the energy absorber and through the beam ends into the mounts.
79. The bumper system defined in claim 72, wherein the corner sections form at least one honeycomb-shaped structure for absorbing impact energy during a vehicle crash, the corner sections extending around and rearward of the end sections of the beam.
28
80. The bumper system defined in claim 67, wherein the corner sections of the energy absorber each include a flat top wall and reinforcing walls supporting the top wall adapted to structurally support fascia on the top wall covering the corner sections.
81. The bumper system defined in claim 72, wherein the top walls of the corner sections of the energy absorber each include a flat portion and including reinforcing walls adapted to structurally support fascia on the top wall covering the corner sections.
82. The bumper system defined in claim 63, wherein the fasteners comprise bolts.
83. The bumper system defined in claim 72, wherein the fasteners comprise bolts.
84. A bumper system comprising: a tubular bumper beam; a hitch-supporting bracket having an inverted section shaped to fit downwardly onto the tubular bumper beam, and further having a laterally-extending second section; and a hitch support tube secured to the laterally-extending second section and having a hole therein, the second section being shaped to support a ball hitch for hauling a trailer.
85. The bumper system defined in claim 84, wherein the inverted section is U- shaped and shaped to straddle the bumper beam.
86. The bumper system defined in claim 85, wherein the second section includes a panel that extends horizontally when in a vehicle-mounted position.
87. The bumper system defined in claim 86, wherein the inverted section includes a long leg that extends downwardly below a height of the panel, and further the hitch support tube is fixedly supported under the panel.
29
88. The bumper system defined in claim 87, wherein the long leg includes a lip at its lower free end, and wherein the hitch support tube includes an end resting on the lip.
89. The bumper system defined in claim 88, wherein the end of the hitch support tube extends through an aperture in the long leg, and including a retainer that extends through the end on a back side of the long leg for retaining the hitch support tube to the bracket despite substantial towing forces acting on the hitch support tube.
90. The bumper system defined in claim 89, wherein the panel and the hitch support tube include aligned holes shaped to receive a stem of a ball hitch.
91. The bumper system defined in claim 89, including a support bracket positioned under the hitch-supporting bracket and engaging the long leg and the panel, the support bracket being shaped to support the panel in a horizontal orientation relative to the hitch- supporting bracket and including holes shaped to provide an attachment point of sufficient strength to engage and support a safety chain.
92. The bumper system defined in claim 84, including an energy absorber that substantially covers the beam and hitch-supporting bracket, and that extends outboard of ends of the beam.
93. The bumper system defined in claim 84, wherein the bumper beam that includes a center section, end sections, and bent interconnecting sections that interconnect each end section with an end of the center section, the center section being at least 25 % of a length of the bumper beam and defining a longitudinal primary centerline, and the end sections being at least 15% of the length and each defining a secondary centerline that extends parallel the primary centerline.
94. The bumper system defined in claim 84, including an energy absorber positioned on a face of the bumper beam, with at least a portion of the hitch-supporting bracket being located under a center of the energy absorber.
95. A bumper system for a vehicle comprising:
30 an elongated reinforcement beam having a face and having opposing end sections adapted for attachment to mounts on a vehicle frame to support the bumper system; and an energy absorber made of a structural engineering polymeric material for absorbing impact forces against the beam during a collision, the energy absorber including corner-forming sections extending outwardly from the end sections of the beam in cantilever, the corner-forming sections including top surfaces forming steps at opposite corners of the vehicle for supporting a person while being stepped upon by the person.
96. The bumper system defined in claim 95, including a hitch support structure mounted to the beam in a central location for supporting a trailer hitch; and the energy absorber including a center section constructed to provide access to the hitch support structure.
97. The bumper system defined in claim 96, wherein the hitch support structure includes a hitch-supporting bracket shaped to downwardly engage the beam.
98. The bumper system defined in claim 97, wherein the hitch support structure includes a hitch support tube supported by the hitch-supporting bracket.
99. The bumper system defined in claim 95, wherein the top surfaces of the corner- forming sections are relatively flat and define a horizontal plane.
31
PCT/US2003/017835 2002-06-06 2003-06-06 Bumper with integrated energy absorber and beam WO2003104030A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
MXPA04012007A MXPA04012007A (en) 2002-06-06 2003-06-06 Bumper with integrated energy absorber and beam.
CA002485712A CA2485712A1 (en) 2002-06-06 2003-06-06 Bumper with integrated energy absorber and beam
EP03757371A EP1509423A4 (en) 2002-06-06 2003-06-06 Bumper with integrated energy absorber and beam
AU2003248628A AU2003248628A1 (en) 2002-06-06 2003-06-06 Bumper with integrated energy absorber and beam
JP2004511120A JP2005528286A (en) 2002-06-06 2003-06-06 Bumper with integrated energy absorber and beam

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/163,838 US6663150B1 (en) 2002-06-06 2002-06-06 Bumper with integrated energy absorber and beam
US10/163,838 2002-06-06
US10/294,124 US6709036B1 (en) 2002-11-14 2002-11-14 Bumper with hitch
US10/294,124 2002-11-14

Publications (3)

Publication Number Publication Date
WO2003104030A2 WO2003104030A2 (en) 2003-12-18
WO2003104030A3 WO2003104030A3 (en) 2004-11-04
WO2003104030B1 true WO2003104030B1 (en) 2005-07-28

Family

ID=29738931

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/017835 WO2003104030A2 (en) 2002-06-06 2003-06-06 Bumper with integrated energy absorber and beam

Country Status (7)

Country Link
EP (1) EP1509423A4 (en)
JP (1) JP2005528286A (en)
CN (1) CN100421999C (en)
AU (1) AU2003248628A1 (en)
CA (1) CA2485712A1 (en)
MX (1) MXPA04012007A (en)
WO (1) WO2003104030A2 (en)

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FR2869276B1 (en) * 2004-04-23 2006-07-28 Plastic Omnium Cie OVERMOLD INSERT BEAM
FR2885095B1 (en) * 2005-04-29 2009-02-27 Plastic Omnium Cie BUMPER SKIN ASSEMBLY AND U-SHAPED ABSORBER ASSEMBLY
CN100445134C (en) * 2005-10-09 2008-12-24 现代自动车株式会社 Energy absorption device for automobile front beam
FR2900617A1 (en) * 2006-05-04 2007-11-09 Peugeot Citroen Automobiles Sa VEHICLE COMPRISING AN ARMATURE AS A SUPPORT FOR A BUMPER
FR2900616B1 (en) * 2006-05-04 2009-05-01 Peugeot Citroen Automobiles Sa VEHICLE COMPRISING AN ARMATURE AS A SUPPORT FOR A BUMPER
FR2914601B1 (en) * 2007-04-06 2009-07-10 Plastic Omnium Cie ASSEMBLY OF A SHOCK BEAM AND ABSORBER
FR2917692B1 (en) * 2007-06-21 2010-04-30 Plastic Omnium Cie LOT OF AT LEAST TWO MODULES TO BE REPORTED ON A BUMPER SKIN.
JP5251289B2 (en) * 2007-08-10 2013-07-31 日産自動車株式会社 Energy absorbing member and vehicle bumper
US8505990B2 (en) * 2007-12-21 2013-08-13 Sabic Innovative Plastics Ip B.V. Corner energy absorber and bumper system
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KR101496314B1 (en) * 2010-09-23 2015-02-26 쉐이프 코프. Tubular beam with single center leg
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JP5864217B2 (en) * 2011-11-04 2016-02-17 アイシン精機株式会社 Bumper reinforcement
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DE102014011790A1 (en) 2014-08-12 2016-02-18 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) bumper module
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DE102015103755A1 (en) * 2015-03-13 2016-09-15 Benteler Automobiltechnik Gmbh Bumper system for a motor vehicle
DE102015117700A1 (en) * 2015-10-16 2017-04-20 Magna International Inc. Cross member and method for producing a cross member
DE102016000515A1 (en) 2016-01-19 2017-07-20 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) bumper module
US10065468B2 (en) * 2016-04-22 2018-09-04 GM Global Technology Operations LLC Attachment plate and towing lug combination for a composite bumper beam and composite crush can assembly
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FR3070665B1 (en) * 2017-09-07 2019-09-13 Compagnie Plastic Omnium MONOBLOCK PIECE FORMING A FRONT BLOCK COMPRISING AN ABSORPTION SYSTEM AND AERODYNAMIC SYSTEM
CN112621883A (en) * 2020-12-10 2021-04-09 湖北永喆热冲压零部件有限公司 Punching device for processing automobile bumper
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Also Published As

Publication number Publication date
MXPA04012007A (en) 2005-03-07
AU2003248628A1 (en) 2003-12-22
CN100421999C (en) 2008-10-01
CN1659067A (en) 2005-08-24
CA2485712A1 (en) 2003-12-18
EP1509423A4 (en) 2005-12-21
EP1509423A2 (en) 2005-03-02
WO2003104030A3 (en) 2004-11-04
AU2003248628A2 (en) 2003-12-22
JP2005528286A (en) 2005-09-22
WO2003104030A2 (en) 2003-12-18

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