| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plastic bottle that can prevent reverse (buckling) of a bottom part even if the bottle is filled with a content fluid consisting of carbonated drink and the inside is turned into a positive pressure. <P>SOLUTION: A plastic bottle 10 includes an opening part 11, a neck part 12, a barrel part 20 and a bottom part 30. The interior of the bottle 10 is filled with a content fluid 15 consisting of the carbonated drink. The bottom part 30 has a center part 31 located on a center of the bottom part, a plurality of petaloid bases 32 radially extending from the center part 31 to a circumferential part 30b, and valley parts 33. When a width of each of the valley parts 33 corresponding to a ground part 32a is t1, a width of each of the petaloid bases 32 corresponding to the ground part 32a is t2, a length of each of the petaloid bases 32 is t3, and a maximum diameter of the barrel part 20 is t4, 0.40<t1/t2<1.60 and 0.07<t3/t4<0.35 are satisfied. <P>COPYRIGHT: (C)2012,JPO&INPIT |
