| 摘要 |
PURPOSE: A back beam of a bumper is provided to enhance an impact absorbing capability at the back beam by absorbing an impact energy in step by step along a vehicle speed. CONSTITUTION: A bumper for a vehicle comprises a facer, an energy absorbing member, and a back beam(200) for supporting the energy absorbing member and absorbing the impact energy through an elastic deforming and a plastic deforming on a collision of the vehicle. The back beam is composed of a front panel(201) and a rear panel(202). The front panel is contacted with the energy absorbing member, and the rear panel is contacted with a stay of a vehicle body. A first extension portion(201a) is extended and formed from the front panel, and a second extension portion(202a) is extended from the rear panel. The first extension portion and the second extension portion are coupled each other by a wax(210). A curling plate(220) is installed at an overlapping position of the first and the second extension portion.
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