| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin container having excellent vacuum absorbing performance, and heat-resistant performance and a bottom shape resistant to hot filling, and excellent in self-standing of the container, and shape stability of the bottom or the container.SOLUTION: A synthetic resin container whose bottom has vacuum absorbing performance is configured such that: an outer peripheral wall continuing from a shank, a grounding part, and a leg comprising an inner peripheral wall are formed in the bottom; a movable bottom 9 positioned on an inner side than the inner peripheral wall of the leg and above the grounding part is formed; and there are included between the outer edge of the movable bottom and the inner edge in contact with a midship part 12, a plurality of curved parts 13 projecting into a radial direction and formed in the circumferential direction, and between the curved parts, a groove part 14 connecting the inner edge of the movable bottom so as to be positioned above in the container axial direction than the outer edge.SELECTED DRAWING: Figure 2 |
