| 摘要 |
PROBLEM TO BE SOLVED: To obtain a safe and improved usability and provide effective function using a simple construction by effectively causing a part of an improper unsealing preventive function part provided at a cap for pouring to function for the purpose of separate recovery. SOLUTION: A split groove 5 is provided in an outer cylinder 4 for undercut engagement with a mouth cylinder of a bottle container 24 of a body part forming a pour port, and a tightening cylinder 21 of a mounting auxiliary body 20 provided integrally to an outer cap 17 in screw-threaded engagement with the body part through a rupture piece 22 is fitted on the outer cylinder 4, whereby the diameter of the cylinder 21 is expanded so that the outer cylinder 4 presses the cylinder 21 strongly. And the rupture piece 22 is broken to effect an improper unsealing preventive function so that cylinder 21 is removed to produce a separate recovery function. |
