| 摘要 |
PROBLEM TO BE SOLVED: To provide a container in which sealing performance between a cap and a container mouth part can be secured even in the case where a cap is fitted by capping at the container mouth part constituted by plural mouth parts (step parts) having different diameters.SOLUTION: In the container 1, upon capping a cap 2 to a container mouth part 3, the inner wall surface of the cylindrical sub engagement wall part 32 of the cap 2 and the outer wall part of the larger diameter mouth part 60 of the container mouth part 3 adhere to each other, and the outer wall surface of the cylindrical main engagement wall part 19 of the cap 2 and the inner wall surface of the small diameter mouth part 61 of the container mouth part 3 adhere to each other. To this end, the pressing force given from the inner wall surface of the small diameter mouth part 61 of the container mouth part 3 to the outer wall surface of the cylindrical main engagement wall part 19 of the cap 2 is raised and the sealing performance can be secured between the outer wall surface of the cylindrical main engagement wall part 19 of the cap 2 and the inner wall surface of the small diameter mouth part 61 of the container mouth part 3.SELECTED DRAWING: Figure 1 |
