| 摘要 |
PROBLEM TO BE SOLVED: To develop an assembly which can be temporarily fixed along with the normal descent of a ring section following the breakage of a bridge section at the time of unsealing. SOLUTION: The cap main body section 11 and a ring section 12 of this cap type bonding-unsealing utensil 1 are connected by a bridge section 13. At the time of unsealing, by breaking the bridge section, a sliding protrusion 12uc on the internal wall of the lower step region of the ring section descends and pulls down the ring section while always pinch-pressing the upper open region 2nx of the external wall of the neck section of the container 2. In addition, an unsealing turn-preventing type vertical protruding line 12rc from the inner periphery of the ring section and a turn- preventing vertical protruding line 12rc, which protrudes from the external wall 2rz of the container neck section, do not prevent the sealing utensil 1 from being fitted, and break the bridge section by preventing the ring section from accompany-turning when the lid is opened. In the protruding line 2rc, at least one long vertical protruding line 2rcT is provided. By this constitution, a careless detaching of the ring section is eliminated. Also, the bridge section is prevented from being broken when the sealing utensil is temporarily fixed and at the time of an unsealing following the temporary fixing. |
