| 摘要 |
PROBLEM TO BE SOLVED: To enable a consumer to easily remove a crowned cap from a bottle mouth with a slight force of removing when putting a container (bottle) for recycling. SOLUTION: A tab 18 is formed, being integral with an outer cylinder 5 of a main body, and starting heads of weakening lines 17a, 17b for severing are connected to a hole 16 adjoining a part where the tab 18 is connected to the outer cylinder 5. The width in the vertical direction of the tab 18 is set in a dimension about not lens than twice the width in the vertical direction of a connecting part 19. Since the friction between the tab 18 and fingers becomes large, the outer cylinder 5 can be severed easily. |
