Abstract: A pouring spout sealing structure of an inside plug includes a sealing member including a bottom part for sealing an opening of a pouring spout of the inside plug, a peripheral wall rising from the peripheral edge of the bottom part, and a knob part extending from the peripheral wall, in which the sealing member is connected to the upper end of the opening of the pouring spout at the peripheral edge of the bottom part, the connected portion constitutes a thin part breakable by a certain pulling force, and the peripheral wall is inclined upwardly and outwardly from the opening of the pouring spout. The container pouring spout sealing structure achieves both sealability and easy opening properties, reduces number of parts and manufacturing steps, and is applicable to small containers such as cosmetic containers.

Abstract: A pouring spout sealing structure of an inside plug includes a sealing member including a bottom part for sealing an opening of a pouring spout of the inside plug, a peripheral wall rising from the peripheral edge of the bottom part, and a knob part extending from the peripheral wall, in which the sealing member is connected to the upper end of the opening of the pouring spout at the peripheral edge of the bottom part, the connected portion constitutes a thin part breakable by a certain pulling force, and the peripheral wall is inclined upwardly and outwardly from the opening of the pouring spout. The container pouring spout sealing structure achieves both sealability and easy opening properties, reduces number of parts and manufacturing steps, and is applicable to small containers such as cosmetic containers.