| 摘要 |
[Object] It is an object of the present invention to provide a crash reinforcing member for a vehicle capable of preventing reduction in flexural rigidity as much as possible even if deformation progresses when a load at the time of crash of the vehicle is input. [Solution] A crash reinforcing member for a vehicle (e.g., door impact beam) includes a long body 10. The body 10 has a hat-shaped opened cross-sectional shape by connecting, with one another, a pair of walls 11, a pair of curved corners 12, a center flange 13, and a pair of outer flanges 14. The body 10 is divided into three sections P1, P2 and P3. A width (C1) of the center flange in the section P1 is wider than a width (C2) of the center flange in the section P2. A cross-sectional area of the curved corner 12 in the section P1 is narrower than a cross-sectional area of the curved corner in the section P2. A cross-sectional height (H1) of the section P1 is higher than a cross-sectional height (H2) of the section P2. The section P3 is provided as a gradually changing portion which smoothly connects the section P1 and the section P2 with each other. |
