PRESSURE REDUCTION-ABSORBING BOTTLE

摘要

Pressure reduction-absorbing bottle includes: cylindrical shoulder portion; cylindrical body portion connecting to the shoulder portion lower end; and bottom portion formed in cylindrical shape with bottom and connecting to the body portion lower end. The bottom portion includes: heel portion connected to the body portion lower opening section, and bottom wall portion closing the heel portion lower opening section. The bottom wall portion includes: grounding portion, rising circumferential wall portion, movable wall portion, and recessed circumferential wall portion. The movable wall portion capable of rotating around the connection portion with the rising circumferential wall portion to move the recessed circumferential wall portion in up-and-down direction. The body portion includes straight cylindrical part connecting to the shoulder portion lower end and extending downward. The straight cylindrical part outer diameter is greater than or equal to 0.60 times the heel portion outer diameter and is smaller than the heel portion outer diameter.

主权项

1. A pressure reduction-absorbing bottle, comprising:
a cylindrical shoulder portion; a cylindrical body portion connecting to a lower end of the shoulder portion; and a bottom portion formed in a cylindrical shape with a bottom and connecting to a lower end of the body portion; wherein the bottom portion includes: a heel portion, an upper opening section of the heel portion being connected to a lower opening section of the body portion, and a bottom wall portion closing a lower opening section of the heel portion; wherein the bottom wall portion includes: a grounding portion positioned at an outer circumferential edge of the bottom wall portion, a rising circumferential wall portion connecting to an inner side in a radial direction of the grounding portion and extending upward, an annular movable wall portion extending inward in the radial direction from an upper end of the rising circumferential wall portion, and a recessed circumferential wall portion extending upward from an inner end in the radial direction of the movable wall portion; wherein the movable wall portion is arranged to be capable of rotating around a connection portion between the rising circumferential wall portion and the movable wall portion so as to move the recessed circumferential wall portion in an up-and-down direction; wherein the body portion includes a straight cylindrical part connecting to the lower end of the shoulder portion and extending downward; and wherein the outer diameter of the straight cylindrical part is greater than or equal to 0.60 times the outer diameter of the heel portion and is smaller than the outer diameter of the heel portion.