| 摘要 |
PROBLEM TO BE SOLVED: To provide a bottle cap which is sufficiently effective to sealing-up and adaptable to any of generally used bottles. SOLUTION: The bottle cap is for fitting to a bottle mouth 1 and in a structrure wherein a rib 3 provided at the reverse side of a top wall 2 of the cap is approximately in a J-shaped section with the front end 3a thereof being elastic so as to come into contact with the inner circumferential face of the bottle mouth 1. |
