| 摘要 |
PROBLEM TO BE SOLVED: To provide a sub-frame of a vehicle which can assure a strength of a core and of which a weight can be suppressed.SOLUTION: A sub-frame 15 of a vehicle includes a body part 25 which has a hollow part 51 by cast molding with use of a core. The body part 25 has a front wall 54 and a rear wall 55. The front wall 54 has a front expansion part which corresponds to a parting line and expands outwards. The front expansion part is formed by avoiding an upper part 52 and a bottom 53. The rear wall 55 has a rear expansion part which corresponds to the parting line and expands outwards. The rear expansion part is formed by avoiding the upper part 52 and the bottom 53. |
