| 摘要 |
PROBLEM TO BE SOLVED: To provide a container with an inner plug, to which an inner plug can be attached and removed smoothly and which has excellent durability when the inner plug is repeatedly attached and removed.SOLUTION: A container with an inner plug comprises a container body, an inner plug engaged with the container body, and an outer cap screw-engaged with the container body. The container body is formed with, on the outer surface of a mouth part, an annular engagement protrusion, and an outer protrusion part located below the annular engagement protrusion and including at least two projections that project outward and have a projected shape. The inner plug is formed with, in the inside, at least two engagement parts extending downward from the upper surface of the inner plug, and at least two inner protrusion parts protruding inward from the inner surface of the inner plug and whose lower end has a shape of a downward projected shape. A lower end of each engagement part is formed with an arc-shaped engagement protrusion that protrudes inward and is engaged with the annular engagement protrusion. When the inner plug is engaged with the mouth part, the inner protrusion parts are located between the projections of the outer protrusion part.SELECTED DRAWING: Figure 1 |
