Patent ID: 9090374
Filing Date: 2015-07-28
Classification: B65D

Abstract:
1. A bottomed tubular bottle comprising: an annular groove which is formed so as to be circumferentially and radially recessed inward along the outer peripheral surface of a body of the bottle with the bottle axis as a center and which contracts and deforms the body in the axial direction of the bottle axis when the internal pressure is reduced, wherein the annular groove has a V-shaped cross section defined by two facing wall surfaces, a protrusion is formed on at least the facing wall surfaces of the annular groove, and when the facing wall surfaces on which the protrusion is formed is seen in plan view, the protrusion is formed in the shape of a triangle, one side of the protrusion overlaps a bottom apex of the V-shaped cross section of the annular groove, and the triangle has a ridgeline which extends toward the outer peripheral surface of the body while being orthogonal to the circumferential direction of the facing wall surfaces.