| 摘要 |
Provided is a structural member for an automobile body, the structural member having a groove section in the top plate section thereof and having a substantially groove-shaped cross-section, the groove section enabling the structural member to effectively exhibit the effect of improved energy absorption efficiency and providing the structural member with excellent load transmission characteristics and high rigidity. A structural member for an automobile body comprises a press-formed body consisting of a steel plate and is formed extending in a predetermined direction, has a top plate section (4), ridge lines (4a, 4b) continuous with the top plate section (4), and vertical wall sections (5a, 5b) continuous with the ridge lines (4a, 4b), and is substantially groove-shaped in cross-section intersecting the predetermined direction. The top plate section (4) is provided with at least one groove section (8) formed extending in the predetermined direction and is also provided with outwardly facing flanges (9a, 9b) formed at an end of the structural member in the predetermined direction at positions within the range of at least the ridge lines (4a, 4b). The depth of the groove section (8) is set depending on the width of the groove section (8) and on the thickness of the steel plate. |
