| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bottle which has a panel structure exerting a function of absorbing a pressure reducing or swelling deformation properly in response to various states of the bottle interior, including state of pressure reducing, pressure increasing, and both pressure reducing/increasing, so that the bottle can be used in a variety of states. <P>SOLUTION: The bottle has a flat section of a noncircular shape, which has at least three apexes spaced at approximately equal three center angles, in a range covering almost the entire height of the trunk of the bottle. The position of each apex determined by each center angle is changed vertically of the trunk to make each pillar formed vertically on the trunk by the apex into an S-shaped curve, so that at least three S-shaped curves are formed to be spaced in rows at approximately equal three center angles. A projected part, which is reversible in its sectional shape to be depressed, is formed on a panel formed between the adjacent pillars. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
