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    METHOD AND DEVICE FOR MANUFACTURING BENT PRODUCT
    5.
    发明公开
    METHOD AND DEVICE FOR MANUFACTURING BENT PRODUCT 有权
    方法和设备制造弯曲制品

    公开(公告)号：EP2368650A4

    公开(公告)日：2012-05-30

    申请号：EP09823570

    申请日：2009-10-27

    申请人： SUMITOMO METAL IND ,  SUMITOMO PIPE & TUBE CO LTD

    发明人： TOMIZAWA ATSUSHI ,  SHIMADA NAOAKI ,  INOUE SABURO ,  KUWAYAMA SHINJIRO

    IPC分类号： B21D7/16 ,  B21D7/12

    CPC分类号： B21D7/16 ,  B21D7/12

    摘要： A manufacturing method for a bent product which can guarantee a high working accuracy and which can provide a large bending angle without damage to the surface condition of a metal material even when a widely varying bent shape is desired or when it is necessary to perform bending of a high strength metal material. A bent product having a three-dimensionally bent portion intermittently or continuously in the lengthwise direction is manufactured by supporting a steel pipe 1 at a first position A while feeding it in the lengthwise direction, locally heating the steel pipe 1 being fed at a second position B, cooling the heated portion of the steel pipe 1 at a third position C, and varying the position of a gripping means 15, which grips the steel pipe 1 in a region D downstream of the third position C, in a three-dimensional direction including the feed direction of the steel pipe 1 in a workspace including a space on the upstream side of the third position C in the feed direction of the steel pipe 1 to impart a bending moment to the heated portion of the steel pipe 1.

    IMPACT ABSORPTION MEMBER FOR VEHICLE
    6.
    发明公开
    IMPACT ABSORPTION MEMBER FOR VEHICLE 有权
    冲击吸收部件车辆

    公开(公告)号：EP1923273A4

    公开(公告)日：2009-09-09

    申请号：EP06715213

    申请日：2006-03-03

    申请人： TOYOTA TEKKO KK ,  SUMITOMO METAL IND ,  SUMITOMO PIPE & TUBE CO LTD

    发明人： KANO MITSUTOSHI ,  TOMIZAWA ATSUSHI ,  UCHIDA MITSUTOSHI

    IPC分类号： B60R19/34 ,  F16F7/12

    CPC分类号： F16F7/12 ,  B60R19/34

    摘要： An impact absorption member for a vehicle, in which both ends in the axial direction of a tubular body section (52) are constructed from thick plates (62, 64) having a thickness of 1.4 mm or greater, and this enables the body section (52) to be excellently welded and secured in a butted state to installation plates (54, 56) by arc welding. By this construction, a lightweight and inexpensive crush box (50) exhibiting predetermined impact energy absorbing performance is constructed without using a bracket etc. Further, an intermediate section of the body section (52) is constructed from a thin plate (60) having a thickness less than 1.4 mm, so that the weight of the impact absorption member is reduced with predetermined impact energy absorbing performance maintained. In addition, because the plate is thinned, the impact absorption member collapses at a lower load to provide an impact energy absorption effect.