RESEALABLE UNSEALING DEVICE FOR CONTAINER

摘要

PURPOSE: To form an opening in a condition wherein contents can be prevented from popping out through the formed opening. CONSTITUTION: An annular scoring 24 for forming an opening is provided at the top wall 21 of a container. An unsealing device 12 is composed of a socket 41 stuck at its underside to the container top wall 21 on a position outside the scoring 24 and a plug 42 fitted into the socket 41 while being stuck at its undersurface to the container top wall 21 on a position inside the scoring 24. An annular fitting recess 71 is provided at the inner circumferential face of the socket 41 while an annular fitting projection 72 capable of being attached to and detached from the fitting recess 71 is provided at the outer circumferential face of the plug 42. The fitting projection 72 is positioned on a level above the fitting recess 71 and the difference in levels between the fitting recess 71 and the fitting projection 72 is made larger than the difference in levels occurring to an occasion of breakage between the outside and the inside of the scoring 24 on the container top wall 21.