| 摘要 |
<p>First and second bent sections (38, 39) are located behind the power unit mounting sections (36) of front side frames (31) configured from tube-shaped hollow members having constant cross-sections. A first weak section (41) is provided near each of the rearward second bent sections (39), and a second weak section (42) is provided in each of the power unit mounting sections (36) at a position near a third bent section (40) which is bent so as to protrude outward in the width direction of the automobile. The configuration enables each of the front side frames (31) configured from the tube-shaped hollow members and having high strength to be bent not only at the first weak section (41) but also at the second weak section (42) in a frontal collision of the automobile, and as a result, the impact absorption stroke is increased to increase impact energy absorption effect.</p> |
