| 摘要 |
<P>PROBLEM TO BE SOLVED: To stabilize decompression absorption in a bottle. <P>SOLUTION: Regarding the bottle 1, the bottom wall 19 of the bottom 14 includes: an annular grounding part 18 located at the outer circumferential edge; a standing peripheral wall 21 connected to the grounding part from the inside in the bottle diameter direction and extending upward; a movable wall 22 projecting from the upper end of the standing peripheral wall 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. The movable wall is arranged to be freely rotatable around a connection part 25 with the standing peripheral wall so as to move the depressed peripheral wall upward, and an annular width D1 along the bottom diameter direction of the movable wall is set within a range of 20 to 40% of the grounding diameter D2 of the grounding part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
