SPOUT

To reliably realize a seal performance of a spout and an inside plug even when a spout body and the inside plug are integrally molded via a score.SOLUTION: A spout includes a spout body 2 being a mouth of a container, an upper lid 4 disposed to cover a spout mouth 3, and an inside plug 5 disposed in the upper lid. The inside plug 5 includes an inside plug top part 14 with an outer peripheral edge hooked on an inner surface of the upper lid, a cylindrical part 15 extending from the inside plug top part 14 to the inside of the spout mouth 3, and an annular flap 16 formed at the outer periphery of the tip of the cylindrical part 15. The flap 16 has a form folded back from the tip of the cylindrical part 15 toward the side of the inside plug top part 14, and has a seal part 18 being in close-contact with an inner peripheral surface of the spout mouth 3 at a tip edge separated from an outer peripheral surface of the cylindrical part 15.SELECTED DRAWING: Figure 1 【課題】スパウト本体と中栓を、スコアを介して一体的に成型する場合にあっても、スパウトと中栓のシール性能を確実に実現する。【解決手段】容器の口部となるスパウト本体２と、スパウト口３を覆って配置する上蓋４と、上蓋内に配置する中栓５を有し、中栓５は、外周縁が上蓋内面に掛かり合う中栓天部１４と、中栓天部１４からスパウト口３の内部に伸びる筒状部１５と、筒状部１５の先端外周に形成した環状をなすフラップ１６を有し、フラップ１６は、筒状部１５の先端から中栓天部１４の側に向けて折り返した形状をなし、筒状部１５の外周面から離隔する先端縁にスパウト口３の内周面に密接するシール部１８を有する。【選択図】図１