| 摘要 |
PROBLEM TO BE SOLVED: To provide an ejection port plug having a built-in unsealing blade wherein there is no fear of being hurt by the unsealing blade of the ejection port plug protruding inside a container when a used paper container for liquid is disassembled for classified collection. SOLUTION: The ejection port plug comprises a spout 100 having a built-in unsealing blade 140 protruding on an ejection hole of a paper container 20 for liquid sealed by a sealing film 30 and a cap 200 wherein the cap 200 is equipped with a threaded part on an inner peripheral face of a peripheral wall, and a guiding inner cylinder forming a plurality of spiral guide slopes on an outer peripheral face is made to hang on a lower face of a top plate. The spout is equipped with a threaded part with the cap on an outer peripheral face of an ejection cylinder, a plurality of longitudinal grooves having a locking on a lower part are formed on an internal face, a plurality of guide slopes which have a plurality of a sliding protrusions sliding in the longitudinal grooves on an outer peripheral face upward and which are in slide contact with the guide slope of the cap on an inner peripheral face are formed, and an unsealing cylinder 130 with an unsealing blade 140 having a plurality of push-to-break slope frames 142 opening radically upward from a sharp head 141 hanging is fitted into a lower end. |
