• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Summary A roll-shaped bumper beam has a closed cross-section with a length along the length constant the cross-section which has at least two closed chambers (15, 16) separated by a substantially horizontal intermediate wall (14). Each chamber has a water side side (19) with at least one entire length longitudinal concave portion (20,21; 22,23) and one side facing the vehicle water side (24) with at least one full length longitudinal convex portion (25, 26. 27,28). After the roll forming, certain parts of the cross section can be compressed vertically or horizontally to adapt the deformation properties.
    公开号:SE1400201A1
    申请号:SE1400201
    申请日:2014-04-15
    公开日:2015-10-16
    发明作者:Daniel Palo
    申请人:Gestamp Hardtech Ab；
    IPC主号:
    专利说明:

    Figure is a section taken along line 5-5 in Figure 3. Figures Description of shown examples of the invention Figure 1 shows a bumper beam 11 which has two crash boxes 12,13 welded. The bumper 11-13 is intended as the vehicle's front bumper and the crash boxes are adapted to be fixed to the vehicle's side beams. Figure 2 shows the bumper seen from the front and figure 4 shows the cross section of the bumper beam which is constant along the entire length.
    From a steel strip, a profile is rolled into a roll in a continuous process, which is then cut to an appropriate length. You can roll shape so that the profile becomes convex as shown in figure 1. Alternatively, you can bend each length after the cut.
    As can be seen from Figure 4, the profile is rolled to have a vertical life 14, i.e. a substantially horizontal intermediate wall 14 which divides the profile into an upper and a lower chamber 15,16. Integrated with the roll forming, laser welding is performed by patching the longitudinal edges of the profile to the sides of the profile at 17.18, so that a rigid profile is obtained. Life causes both torsional rigidity and poop rigidity. Life is also important in the process of deformation and increases energy absorption in the event of a collision. The side 19 which is directed forwards, i.e. outwards from the vehicle, has for each of the chambers a concave part which consists of two substantially flat side parts 20,21; 22.23 at an angle to each other. The rear side 24, i.e. the side water towards the vehicle, has a corresponding convex part which consists of substantially flat side parts 25,26; 27.28 at an angle to each other. The forward-facing side 19 has its trafficking surfaces substantially along a straight line which is substantially vertical.
    The strut beam according to figure 3 is a modification of that according to figure 2. A portion 32 of its length has been compressed vertically so that it has the cross section shown in figure 5. The front 19 of the usual chamber 15,16 is convex and the back 24 concave and dented the width of the cross section of Okas at the compression, which increases the bending stiffness locally. The increased bending stiffness at the center of the bumper beam obtained according to Figure 3 reduces the risk that it will form after folds in the event of a collision load straight from the front, which causes the bumper beam to collapse locally. By horizontal pressing you can bathe the radius of the second bumper, which is often Onskvart at 3 bumper spirits. Horizontal pressing can also reduce the bending stiffness locally, even if you do not want the radiator of the other bumper.
    By compressing parts of the length of the bumper beam in this way, it is possible to control the behavior of the bumper beam at collision load at very low cost, even though the perimeter is constant. It is also possible to adapt one and the same basic profile to different vehicles. The profile is rolled in a continuous installation and suitable lengths and desired compressions of the basic profile are cut for adaptation to different vehicles. 4
    权利要求:
    Claims (10)
    [1]
    Roll-shaped bumper beam with closed transverse section with a constant perimeter along the length, can be drawn by the fact that it has a transverse section with at least two closed chambers (15,16) separated by a substantially horizontal intermediate wall (14), the usual chamber (19) with at least one longitudinal concave portion (20,21; 22,23) and one side facing the vehicle (24) with at least one full length longitudinal convex portion (25,26. 27,28).
    [2]
    Bumper beam according to claim 1, characterized in that the concave and convex part constitutes at least 80% of the vertical height of each chamber.
    [3]
    Bumper beam according to claim 1, characterized in that the concave and convex part are formed by two side parts which are substantially flat and at an angle to each other.
    [4]
    Bumper beam according to one of the preceding patent claims, characterized in that the vertical height of the chambers (15, 16) is greater than the horizontal extent of the intermediate wall (14) in the cross section.
    [5]
    Bumper beam according to claim 1 or 2, characterized in that a small portion along the length of the bumper beam has reduced height by the sides of the chambers being compressed vertically.
    [6]
    6. juice of making a beam of steel plate with a closed section and varying cross-section, can be drawn by rolling a beam from a flat blank so that it has a constant cross-section and joining the edges so that the section is closed, forming two opposite sides which determine section height and have curved parts, and after roll forming, certain parts of the section are compressed vertically or horizontally.
    [7]
    Set according to claim 6, characterized by a roll forming so that the beam has a horizontal intermediate wall which divides the beam into two closed chambers which both have sides with curved parts.
    [8]
    Set according to claim 7, characterized in that rollers are formed so that the chambers have an outwardly curved side and an inwardly curved side.
    [9]
    Set according to claim 7 or 8, characterized in that the beam is rolled so that the vertical MO of the chambers becomes larger than the horizontal extent of the intermediate wall in the cross section.
    [10]
    10. sat according to any one of claims 6-9, characterized in that the profile is laser-welded together along the longitudinal edges. itY 2/3 1/3 Fic 6
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    同族专利:
    公开号 | 公开日
    HUE042920T2|2019-07-29|
    EP3131789A4|2017-12-13|
    ES2709504T3|2019-04-16|
    CN106103202A|2016-11-09|
    CN106103202B|2019-12-03|
    EP3131789B1|2018-11-28|
    KR20160146823A|2016-12-21|
    WO2015160298A1|2015-10-22|
    JP2017513759A|2017-06-01|
    US9988005B2|2018-06-05|
    EP3131789A1|2017-02-22|
    JP6529514B2|2019-06-12|
    US20180029549A1|2018-02-01|
    SE538230C2|2016-04-12|
    TR201901302T4|2019-02-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2001062532A|1999-08-30|2001-03-13|Toyota Motor Corp|Deformed cross section forming of hollow pipelike work|
    FR2841850B1|2002-07-03|2005-10-28|Wagon Automotive Sa|PROFILE FOR STRUCTURAL ELEMENT OF MOTOR VEHICLE, AND CORRESPONDING CHASSIS|
    CN1835858A|2003-08-19|2006-09-20|沙普公司|Bumper beam having face with supported angled wall|
    JP4371059B2|2005-01-28|2009-11-25|住友金属工業株式会社|Shock absorbing member|
    EP1854675B1|2006-05-11|2011-08-03|Wagon Automotive GmbH|Motor vehicle bumper beam system|
    KR100945148B1|2007-12-27|2010-03-08|주식회사 성우하이텍|Roll forming system and method thereof|
    DE102008016224B4|2008-03-27|2017-12-28|Linde + Wiemann SE & Co. KG|Profile part for motor vehicle body with variable profile width|
    CN103221266B|2010-09-23|2016-09-21|形状集团|Guan Liang with single center leg|
    KR20120062217A|2010-12-06|2012-06-14|현대자동차주식회사|Crash box of bumper for car|US9505361B2|2013-10-04|2016-11-29|Multimatic Inc.|Vehicle bumper|
    WO2018091948A1|2016-11-18|2018-05-24|Arcelormittal|Bumper beam having an 8 shaped cross-section|
    US11159120B2|2018-03-23|2021-10-26|Nextracker Inc.|Multiple actuator system for solar tracker|
    AT522658A1|2019-05-20|2020-12-15|Siemens Mobility Austria Gmbh|Energy absorption device|
    US11050383B2|2019-05-21|2021-06-29|Nextracker Inc|Radial cam helix with 0 degree stow for solar tracker|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1400201A|SE538230C2|2014-04-15|2014-04-15|Ways to manufacture a steel plate bumper beam and roll-shaped bumper beam|SE1400201A| SE538230C2|2014-04-15|2014-04-15|Ways to manufacture a steel plate bumper beam and roll-shaped bumper beam|
    ES15780706T| ES2709504T3|2014-04-15|2015-03-20|Bumper sleeper formed by rolling and method to make a bumper sleeper|
    CN201580014958.9A| CN106103202B|2014-04-15|2015-03-20|Roll the bumper formed and the method for manufacturing bumper|
    TR2019/01302T| TR201901302T4|2014-04-15|2015-03-20|The method for manufacturing a rolled bumper beam and a bumper beam.|
    KR1020167031739A| KR20160146823A|2014-04-15|2015-03-20|Roll formed bumper beam and method for manufacturing a bumper beam|
    US15/127,136| US9988005B2|2014-04-15|2015-03-20|Roll formed bumper beam and method for manufacturing a bumper beam|
    EP15780706.6A| EP3131789B1|2014-04-15|2015-03-20|Roll formed bumper beam and method for manufacturing a bumper beam|
    JP2016562926A| JP6529514B2|2014-04-15|2015-03-20|Roll-formed bumper beam and method of manufacturing the bumper beam|
    HUE15780706A| HUE042920T2|2014-04-15|2015-03-20|Roll formed bumper beam and method for manufacturing a bumper beam|
    PCT/SE2015/000015| WO2015160298A1|2014-04-15|2015-03-20|Roll formed bumper beam and method for manufacturing a bumper beam|
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