| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydraulic-formed article having excellent rigidity against the torsional bending and excellent rigidity in the longitudinal direction. <P>SOLUTION: The hydraulic-formed article is obtained by applying the hydraulic forming to a preform having first and second outer faces with an overlapped and joined edge thereto and reinforcing members arranged on the inner sides of the first and second outer faces, and comprises an outer face of a hollow part, a partition 65 to substantially partition the hollow part, and a space S<SB>1</SB>. The outer face consists of the first and second outer faces, and has side wall parts 61A, 62A inclined with respect to overlapping surface OS of the first and second outer faces, and top parts 61B, 62B surrounded by the sidewall parts 61A, 62A. The partition 65 is formed of the reinforcing members, and one end 66 and the other end 67 are joined with the top parts 61B, 62B of the outer faces, respectively. The space S<SB>1</SB>is formed between a side face part 68 of the partition 65 and the sidewall parts 61A, 62A of the outer faces. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
