| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bottle capable of smoothly moving a movable wall while improving evacuation and absorption performance in the bottle. <P>SOLUTION: A bottom wall 19 of a bottom 14 includes a ground contact part 18 located on an outer circumferential edge, a rising circumferential wall 21 connected to the ground contact part 18 from the inner side in the radial direction and extending upwardly, a movable wall 22 projecting from an upper end of the rising circumferential wall 21 toward the inner side in the radial direction, and a recessed circumferential wall 23 extending upwardly from an inner end in the radial direction of the movable wall 22. The movable wall 22 is movably arranged upwardly together with the recessed circumferential wall 23 around a connection part to the rising circumferential wall 21, and an upwardly swollen part 32 which is swollen upwardly is formed on an outer end along the radial direction in the movable wall 22. <P>COPYRIGHT: (C)2013,JPO&INPIT |
