WO2010002309A1 - Crash box for a vehicle - Google Patents

Crash box for a vehicle Download PDF

Info

Publication number
WO2010002309A1
WO2010002309A1 PCT/SE2009/000334 SE2009000334W WO2010002309A1 WO 2010002309 A1 WO2010002309 A1 WO 2010002309A1 SE 2009000334 W SE2009000334 W SE 2009000334W WO 2010002309 A1 WO2010002309 A1 WO 2010002309A1
Authority
WO
WIPO (PCT)
Prior art keywords
crash box
vehicle
bent
bottom side
top side
Prior art date
Application number
PCT/SE2009/000334
Other languages
French (fr)
Inventor
Jonas HELLSTRÖM
Original Assignee
Gestamp 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 Gestamp Hardtech Ab filed Critical Gestamp Hardtech Ab
Priority to US12/737,269 priority Critical patent/US8191943B2/en
Priority to EP09773824.9A priority patent/EP2296943B1/en
Priority to JP2011516211A priority patent/JP5730760B2/en
Publication of WO2010002309A1 publication Critical patent/WO2010002309A1/en

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
    • B60R19/24—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

Definitions

  • the invention deals with a crash box for a vehicle, with front plate for attachment to a bumper beam and rear fastening plate for attachment to the vehicle.
  • Bumper beams are often secured in a pair of crash boxes which in turn are attached to the vehicle, often to its side rails.
  • US 7,344,008 Bl is one example of such a crash box.
  • One purpose of the invention is to afford greater geometrical freedom in the design of crash boxes and to enable greater depth without increasing the manufacturing costs. This purpose is fulfilled when a sheet blank is bent in a U to form the front plate, a top side and a bottom side, and the top side and bottom side are bent to form overlapping flaps which are joined together at the overlapping, and to form rear fastening plates.
  • the invention is defined by the patent claims.
  • Figure 1 is an isometric view of a crash box shown as an example of the invention.
  • Figure 2 is a view of the same crash box seen from the front.
  • Figure 3 is a view of the same crash box seen from below.
  • Figure 4 shows the sheet blank from which the crash box is made.
  • the crash box is bent from a flat sheet blank 10 as shown in Fig. 4 to make a front plate 11, a top side 12, and a bottom side 13.
  • the top side has a rear flap bent up to form an upper fastening plate 14 and the bottom side 13 has a rear flap bent down to form a lower fastening plate 15.
  • the bottom side 13 has side flaps 16,17 bent up and the top side 12 has corresponding side flaps 18,19 bent down and overlapping the flaps of the bottom side. In the overlap, the flaps are joined together, preferably by welding.
  • the different parts of the crash box are also indicated on the blank 10 in Fig. 4 and the bending lines are shown as broken lines.
  • a bumper beam, not shown, is supported by two crash boxes, attached to a supporting part of the vehicle.
  • the crash boxes in this case are slanting and mirror images of each other, but only one of the crash boxes is depicted and described.
  • the slanting in this case is because they are adapted to a bumper beam shaped like an arch.
  • the front plate of the crash box is attached, advisedly by welding, to the bumper beam, and the bumper, i.e., the bumper beam with the two crash boxes is attached to a supporting part of the vehicle.
  • the fastening plates 14, 15 have holes 20,21,22 for bolts to fasten the crash box to the vehicle.

Landscapes

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

Abstract

A crash box for a vehicle is made from a sheet blank (10) which is bent in a U to form the front plate (11), a top side (12) and a bottom side (13), and the top side and bottom side are bent to form overlapping flaps (16-19) which are joined together at the overlapping, and to form rear fastening plates (14,15).

Description

Crash box for a vehicle
Field of the invention
The invention deals with a crash box for a vehicle, with front plate for attachment to a bumper beam and rear fastening plate for attachment to the vehicle.
Background of the invention
Bumper beams are often secured in a pair of crash boxes which in turn are attached to the vehicle, often to its side rails. US 7,344,008 Bl is one example of such a crash box.
Purpose and brief description of the invention
One purpose of the invention is to afford greater geometrical freedom in the design of crash boxes and to enable greater depth without increasing the manufacturing costs. This purpose is fulfilled when a sheet blank is bent in a U to form the front plate, a top side and a bottom side, and the top side and bottom side are bent to form overlapping flaps which are joined together at the overlapping, and to form rear fastening plates. The invention is defined by the patent claims.
Short description of the drawings
Figure 1 is an isometric view of a crash box shown as an example of the invention.
Figure 2 is a view of the same crash box seen from the front.
Figure 3 is a view of the same crash box seen from below.
Figure 4 shows the sheet blank from which the crash box is made.
Description of the depicted example of the invention
The crash box is bent from a flat sheet blank 10 as shown in Fig. 4 to make a front plate 11, a top side 12, and a bottom side 13. The top side has a rear flap bent up to form an upper fastening plate 14 and the bottom side 13 has a rear flap bent down to form a lower fastening plate 15. The bottom side 13 has side flaps 16,17 bent up and the top side 12 has corresponding side flaps 18,19 bent down and overlapping the flaps of the bottom side. In the overlap, the flaps are joined together, preferably by welding. The different parts of the crash box are also indicated on the blank 10 in Fig. 4 and the bending lines are shown as broken lines. A bumper beam, not shown, is supported by two crash boxes, attached to a supporting part of the vehicle. The crash boxes in this case are slanting and mirror images of each other, but only one of the crash boxes is depicted and described. The slanting in this case is because they are adapted to a bumper beam shaped like an arch. The front plate of the crash box is attached, advisedly by welding, to the bumper beam, and the bumper, i.e., the bumper beam with the two crash boxes is attached to a supporting part of the vehicle. The fastening plates 14, 15 have holes 20,21,22 for bolts to fasten the crash box to the vehicle.

Claims

Patent claims
1. Crash box for a vehicle, with front plate (11) for attachment to a bumper beam and rear fastening plate (14,15) for attachment to the vehicle, characterised in that a sheet blank (10) is bent in a U to form the front plate (11), a top side (12) and a bottom side (13), and the top side and bottom side are bent to form overlapping flaps
(16-19), which are joined together at the overlapping, and to form rear fastening plates
(14,15).
2. Crash box according to claim 1, characterised in that the overlapping flaps are welded together.
PCT/SE2009/000334 2008-07-01 2009-06-30 Crash box for a vehicle WO2010002309A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/737,269 US8191943B2 (en) 2008-07-01 2009-06-30 Crash box for a vehicle
EP09773824.9A EP2296943B1 (en) 2008-07-01 2009-06-30 Crash box for a vehicle
JP2011516211A JP5730760B2 (en) 2008-07-01 2009-06-30 Vehicle crash box

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0801552A SE532640C2 (en) 2008-07-01 2008-07-01 Car crash box
SE0801552-1 2008-07-01

Publications (1)

Publication Number Publication Date
WO2010002309A1 true WO2010002309A1 (en) 2010-01-07

Family

ID=41466187

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2009/000334 WO2010002309A1 (en) 2008-07-01 2009-06-30 Crash box for a vehicle

Country Status (6)

Country Link
US (1) US8191943B2 (en)
EP (1) EP2296943B1 (en)
JP (1) JP5730760B2 (en)
KR (1) KR101631987B1 (en)
SE (1) SE532640C2 (en)
WO (1) WO2010002309A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101168997B1 (en) 2010-10-29 2012-07-26 주식회사화신 Bumper for vehicles
CN103124656A (en) * 2010-09-09 2013-05-29 乐天化学株式会社 Crash box for a vehicle
KR101318110B1 (en) * 2011-10-20 2013-10-16 주식회사화신 Bumper for vehicles
EP2719582A1 (en) * 2011-06-10 2014-04-16 UACJ Corporation Shock absorber and bumper device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5761051B2 (en) * 2012-01-26 2015-08-12 トヨタ自動車株式会社 Vehicle shock absorbing member and vehicle end structure
US9233657B1 (en) 2014-08-29 2016-01-12 Toyota Motor Engineering & Manufacturing North America, Inc. Bumper energy absorber with local stiffening
KR20160060271A (en) 2014-11-20 2016-05-30 현대자동차주식회사 Crash box of vehicle and assembly method thereof
US9751480B1 (en) 2016-04-25 2017-09-05 Toyota Motor Engineering & Manufacturing North America, Inc. Crush box for vehicle impact
US11283395B2 (en) 2018-03-23 2022-03-22 Nextracker Inc. Multiple actuator system for solar tracker
US11387771B2 (en) 2018-06-07 2022-07-12 Nextracker Llc Helical actuator system for solar tracker
US11050383B2 (en) 2019-05-21 2021-06-29 Nextracker Inc Radial cam helix with 0 degree stow for solar tracker

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5876077A (en) * 1997-01-21 1999-03-02 Ford Global Technologies, Inc. Bumper and front rail assembly for vehicle
DE19751513A1 (en) * 1997-11-21 1999-06-02 Vaw Alutubes Gmbh Crash box producing process
US5984390A (en) * 1997-10-06 1999-11-16 Chrysler Corporation Front bumper energy absorption and management system
EP1762438A1 (en) * 2005-09-08 2007-03-14 Wagon Automotive GmbH Impact absorbing device for a motor vehicle

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JPS63180544A (en) * 1987-01-22 1988-07-25 Mazda Motor Corp Bumper installing structure for automobile
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US7066509B2 (en) * 2004-02-17 2006-06-27 Benteler Automotive Corporation Energy absorption impact system and method for vehicle bumpers and the like
JP2005349918A (en) * 2004-06-09 2005-12-22 Toyota Motor Corp Shock absorbing member for vehicle
SE0401460L (en) * 2004-06-09 2005-07-26 Gestamp Hardtech Ab Crash box for vehicles
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5876077A (en) * 1997-01-21 1999-03-02 Ford Global Technologies, Inc. Bumper and front rail assembly for vehicle
US5984390A (en) * 1997-10-06 1999-11-16 Chrysler Corporation Front bumper energy absorption and management system
DE19751513A1 (en) * 1997-11-21 1999-06-02 Vaw Alutubes Gmbh Crash box producing process
EP1762438A1 (en) * 2005-09-08 2007-03-14 Wagon Automotive GmbH Impact absorbing device for a motor vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2296943A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103124656A (en) * 2010-09-09 2013-05-29 乐天化学株式会社 Crash box for a vehicle
KR101168997B1 (en) 2010-10-29 2012-07-26 주식회사화신 Bumper for vehicles
EP2719582A1 (en) * 2011-06-10 2014-04-16 UACJ Corporation Shock absorber and bumper device
EP2719582A4 (en) * 2011-06-10 2014-11-19 Uacj Corp Shock absorber and bumper device
US9193320B2 (en) 2011-06-10 2015-11-24 Uacj Corporation Impact absorbing member and bumper device
KR101318110B1 (en) * 2011-10-20 2013-10-16 주식회사화신 Bumper for vehicles

Also Published As

Publication number Publication date
US20110181063A1 (en) 2011-07-28
EP2296943A1 (en) 2011-03-23
US8191943B2 (en) 2012-06-05
KR101631987B1 (en) 2016-07-01
JP2011526856A (en) 2011-10-20
EP2296943A4 (en) 2012-03-28
JP5730760B2 (en) 2015-06-10
SE0801552L (en) 2010-01-02
KR20110040876A (en) 2011-04-20
SE532640C2 (en) 2010-03-09
EP2296943B1 (en) 2013-05-08

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