| 摘要 |
An object is to provide a container sealing device which can perform an opening of an inner plug with a clear opening feeling. An inner plug 10 is assembled in advance to an upper closure 20 by using a second screwing part 52. At this time, since an assembling interval between a separation part 12 and the upper closure 20 can be adjusted by tip end parts 16t and 20u of a cylindrical part 16 which are first stoppers and the small-diameter cylinder part 20d, the second screwing part 52 can be brought into a lock state of being screwed to the deepest position or a state close to that. After that, attachment of the sealing device 100 to the container 1, that is, sealing becomes possible by screwing the upper closure 20 with the inner plug 10 into the container 1. In opening the plug, the upper closure 20 is rotated in the loosening direction with respect to the container 1. Namely, the first screwing part 51 is loosened by rotating the upper closure 20 so as to be screwed back, but along with that, the second screwing part 52 which has been already substantially locked is tightened, and the separation part 12 can be rapidly and reliably separated from a body part 10b of the inner plug 10. As a result, after separation, that is, after opening of the plug, the separation part 12 becomes less likely to be removed from the upper closure 20, and is reliably held. |
