| 摘要 |
PROBLEM TO BE SOLVED: To provide a cast suspension member structure capable of reconciling securing of rigidity in relation to an input from a suspension arm with securing of energy absorbing performance at the time of a frontal collision. SOLUTION: First reinforcing ribs 50 for connecting a front side mounting part 52 and a rear side mounting part 54 are stood on both sides of a cast front suspension member 10. The first reinforcing ribs 50 are reinforced by a plurality of second reinforcing ribs 56. As a result, the rigidity in relation to the input from the suspension arm is secured. A thin-walled part 58 is formed in a triangular range in plane view on a front side of the rear side mounting part 54. A crash bead 62 is formed in the thin-walled part 58. As a result, energy absorbing stroke at the time of the frontal collision is secured and energy absorbing performance is also ensured. COPYRIGHT: (C)2005,JPO&NCIPI
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