| 摘要 |
A tongue and groove arrangement guides an outer cap in an axial direction with respect to an inner cap. When a cap is fixed to a mouth of a container body, the outer cap is located in a direction of separating from the inner cap in the axial direction, and an inner face of a top wall of the outer cap is separated from a valve to urge the valve in a direction of projecting from a discharge hole of an inside plug, causing the discharge hole to close. When the cap is detached and removed from the mouth, the outer cap is moved in a direction of approaching the inner cap in the axial direction, and the inner face abuts the valve urged in a direction of separating from the discharge hole while resisting against an urging member, causing the discharge hole to open. |
