| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance bottle's absorbability of in-bottle pressure reduction. <P>SOLUTION: A bottle 1 includes a bottom 14, which has a bottom wall 19. The bottom wall is formed of: a grounding part 18 located at an outer peripheral edge of the bottom wall; a standing peripheral wall 21 continuing the grounding part from an inside in the direction of the bottle diameter, and extending upward; an annular movable wall 22 protruding downward from an upper end of the standing peripheral wall to its more inner side in the direction of the bottle diameter; and a depression peripheral wall 23 continuing the movable wall from an inner side with respect to the bottle and extending upward. Here, the movable wall is disposed such that it extends gradually downward toward a direction from an outer end continuing the standing periphery to an inner end continued to the depression peripheral wall, and it can turn around the outer end thereby shifting the depression peripheral wall upward, wherein a height H1 from the grounding part to the inner end of the movable wall is 45% or less of a height H2 from the grounding part to the outer end of the movable wall. <P>COPYRIGHT: (C)2012,JPO&INPIT |
