| 摘要 |
<P>PROBLEM TO BE SOLVED: To make it easy to secure the stability in grounding. <P>SOLUTION: In a bottle 1, a bottom 14 includes a heel part 17, the top aperture of which is connected to the bottom aperture of a barrel, and a bottom wall part 19, which blocks the bottom aperture of the heel part 17 and makes the peripheral edge serve as a grounding part 18. The bottom wall part 19 is equipped with a rising peripheral wall 21, which ranges from inside of the bottle in the radial direction to the grounding part 18, a circular movable wall 22, which projects upward inside of the bottle in the radial direction from the top of the rising peripheral wall 21, and a sunken peripheral wall 23, which extends upward form the inner end of the bottle in the radial direction of the circular movable wall 22. The circular movable wall 22 is arranged freely turnably around the connection 25 with the rising peripheral wall 21 so as to move the sunken peripheral wall 23 upward, and a parting line PL is created in the heel part 17 or the rising peripheral wall 21. <P>COPYRIGHT: (C)2012,JPO&INPIT |
