| 摘要 |
<p>A vehicle body frame includes left and right frame members 6 having connecting holes 45 extending and coaxially through the frame members 6, and a cross member 12 fitted in the connecting holes 45 so as to bridge the frame members 6 and coupled by welding to both of the frame members 6. The cross member 12 is configured from a pipe member having a hollow portion 12a which is open at its ends. A cap-shaped patch member 43 is fitted in an inner peripheral face 12b in each of the open ends of the hollow portion 12a of the cross member 12, a welding margin L connecting to the open end is provided on the inner peripheral face 12b, and the patch member 43 is welded to the inner peripheral face 12b such that weld beads 44 are included within the range of the welding margin L. This provides a vehicle body frame which can have reduced weight and increased rigidity, and improve productivity of the vehicle body frame.</p> |
