| 摘要 |
A pressure reduction-absorbing bottle (1) is provided with a cylindrical shoulder section (12), a cylindrical body section (13) which continues to the lower end of the shoulder section, and a closed-end cylindrical bottom section (14) which continues to the lower end of the body section. The bottom section is provided with a heel section (41) which is connected to the lower end opening of the body section, and a bottom wall section (43) which closes the lower end opening of the heel section. The bottom wall section is provided with a ground contact section (42), a raised peripheral wall section (61), a movable wall section (62), and a depressed peripheral wall section (63). In order to enable the depressed peripheral wall section to move vertically, the movable wall section is provided so as to be pivotable about the connection portion (65a) where the raised peripheral wall section and the movable wall section are connected. The body section is provided with a straight cylinder section (21) which continues to the lower end of the shoulder section and which extends downward. The outer diameter of the straight cylinder section is greater than or equal to 0.60 times the outer diameter of the heel section and less than 1 time the outer diameter of the heel section. |
