| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance decompression absorbing capability in a bottle. <P>SOLUTION: Regarding the bottle 1, the bottom wall 19 of a bottom 14 includes: a grounding part 18 located at the outer circumferential edge; a standing peripheral wall 21 connected to the grounding part 18 from the inside in the bottle diameter direction and extending upward; an annular movable wall 22 projecting from the upper end of the standing peripheral wall 21 toward the inside in the bottle diameter direction; and a depressed peripheral wall 23 extending upward from the inner end in the bottle diameter direction of the movable wall 22. The movable wall 22 is arranged to be freely rotatable around a connection part 25 with the standing peripheral wall 21 so as to move the depressed peripheral wall 23 upward, and the depressed peripheral wall 23 is formed to have multiple stages. <P>COPYRIGHT: (C)2012,JPO&INPIT |
