| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vehicle-body lower-frame structure improved in joint strength of a joint part between a side frame and a cross member.SOLUTION: A vehicle-body lower-frame structure comprises: paired side frames 11 extended at a lower part of a vehicle body in a longitudinal direction with an interval between the side frames 11; cross members 12 extended between the paired side frames 11 in a vehicle width direction; joint members 15 that connect the side frames 11 and the cross members 12, respectively. The joint members 15 have: base portions 15A that are fixed to end portions in the vehicle width direction, of the cross members 12, and side portions 11A inside the vehicle body, of the side frames 11; and protruding portions 15B that protrude from the base portions 15A in the vehicle width direction and are fixed to lower portions 11B of the side frames 11.</p> |
