| 摘要 |
A protrusion (20a) on an upper mold (second mold, (20)) is provided so as to project downward toward a lower mold (first mold, (10)), the protrusion (20a) being provided with a tip for forming a stretched part (200a) obtained by partially pressing and stretching a preform (200), and a side edge for bending a portion continuous with the stretched part (200a) and forming a bent part (200b) in a space (10s) formed with the lower mold. A pulling part (30) pulls and stretches the bent part (200b). A controller (40) controls the actions of the lower mold (10) or the upper mold (20) and the pulling part (30). In a state in which the stretched part (200a) of the preform (200) remains pressed by the lower mold (10) and the protrusion (20a) of the upper mold (20), the bent part (200b) is pulled and stretched by the pulling part (30), and the shape of the protrusion (20a) is imparted to the preform (200) along the side edge of the protrusion (20a). The prescribed shape of the preform (200) is a concavo-convex shape such as one in which the bent part (200b) is formed. |
