| 摘要 |
<p>A member (2) of a vehicle frame structure (1) includes an extension portion (3) that extends in a longitudinal direction and a kick portion (4) positioned behind, and below the extension portion (3). Buckling lines (7, 7) are formed in parallel with each other in the extension portion (3), and each of the buckling lines (7, 7) is inclined such that a lower end is positioned ahead of an upper end in a side view. If a collision load is applied from a front side of a vehicle at the time of vehicle collision, the extension portion (3) is deformed along the buckling lines (7), and a front end of the extension portion (3) is displaced downward. Therefore, a vertical offset between the front end of the extension portion (3) and the kick portion (4) is reduced, thereby reducing a bending moment applied to the kick portion (4). Accordingly, the required yield strength of the kick portion (4) can be set to a lower value.</p> |
