| 摘要 |
PROBLEM TO BE SOLVED: To provide a stopper for a bottle, capable of being mounted even in the bottle mounted with an existing inner stopper, adopting a simple structure, and maintaining opening properties.SOLUTION: A stopper for a bottle includes: a top part covering at least an edge part of an inner stopper head part in an inner stopper mounted in a bottle mouth part of the bottle; and a side part extended from the top part, and covering the bottle mouth part from a head part side face of the inner stopper head part. The side part includes: a cut part formed upward from a lower end part; a thin wall part formed upward such that the thin wall part continues from the cut part; a first projection part positioned between the bottle mouth part and the inner stopper, and formed in the inner side face of the side part such that the first projection part pinches the inner stopper head part of the inner stopper between the first projection part and the top part; a second projection part formed in the inner side face of the side part such that the second projection part is locked to an annular recessed part of the bottle; and gap parts formed in the first projection part and the second projection part correspondingly to a position formed with the thin wall part. |
