Patent ID: 8998026
Filing Date: 2015-04-07
Classification: B65D

Abstract:
1. A bottle formed of a synthetic resin material in a cylindrical shape with a bottom, having a bottom wall portion, the bottom wall portion comprising: a grounding portion located at an outer circumferential edge of the bottom wall portion; a rising circumferential wall portion that is connected to the grounding portion and that extends upward and inward toward a central longitudinal axis of the bottle; an annular movable wall portion protruding from an upper end of the rising circumferential wall portion toward the central longitudinal axis of the bottle; and a recessed circumferential wall portion that is connected to the movable wall portion and that extends upward and inward toward the central longitudinal axis of the bottle, wherein: the movable wall portion is free to rotate around a connecting portion connected to the rising circumferential wall portion so as to move the recessed circumferential wall portion in an upward direction, and the rising circumferential wall portion extends so as to be gradually inclined upward from the grounding portion to the connecting portion, an inclined angle thereof is equal to or less than 10° with respect to the central longitudinal axis of the bottle, and a height from a grounding plane to the connecting portion connected to the rising circumferential wall portion exceeds 7.5 mm