| 摘要 |
PROBLEM TO BE SOLVED: To achieve butt welding without increasing the thickness of a butt welding face to thereby control a step at a butt welding part, to achieve moulding for laid out easily, and to reduce cost for moulding by using a cheap and simple pattern.SOLUTION: An undercover front 11 and an undercover rear 12 are moulded in a split structure from a resin, and the undercover front 11 and the undercover rear 12 are put on a seat base for supporting a seat cushion to be flipped up on the front and butted each other, and then mutually joined in one body by fins 16, 16, 22, 22 and tie-in fins 17, 17, 23, 23. |
