| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bottle enhancing bottle's absorbability of in-bottle pressure reduction. <P>SOLUTION: A synthetic resin material-made bottle 1 formed in a bottomed cylindrical shape includes a bottom 14. The bottom 14 includes a bottom wall 19. The bottom wall 19 is formed of: a grounding part 18 located at an outer peripheral edge of the bottom wall 19; a standing peripheral wall 21 continuing the grounding part 18 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 21 to its more inner side in the direction of the bottle diameter; and a depression peripheral wall 23 extending upward from an inner edge in the direction of the bottle diameter, of the movable wall 22. Here, the movable wall 22 is disposed such that it can turn around connections 25 between the standing peripheral wall 21 and itself thereby shifting the depression peripheral wall 23 upward, and the movable wall 22 is formed with ribs 220 each extending in a bottle circumferential direction to form a ring. <P>COPYRIGHT: (C)2012,JPO&INPIT |
