| 摘要 |
PROBLEM TO BE SOLVED: To make engagement with a cap used simultaneously tight until closing of stopper for a sealing stopper for bottle which packs drinking water, seasonings and the like, and to make the sealing stopper separate and remain at the mouth of the bottle at the time of opening the stopper while making the sealing stopper removable simply by hand. SOLUTION: For this hermetically sealable stopper 1, an outwardly-looking flange 4 which covers the upside of a bottle mouth part is formed at the upper end of a circumferential wall 2 touching close to the inner circumferential face of the bottle mouth part while a thin peripheral edge 5 is formed at the outer circumference of the flange 4 and furthermore, a bottom wall 3 whereon a circular thin belt 10 is formed by providing a groove 9 circularly at its surface is provided in spreading so that its peripheral edge comes in continuous contact with the inner face of the circumferential wall 2 which touches closely the inner circumferential face of the bottle mouth part, and a columnlike body 7 is erected at the center at the upside of the bottom wall 3. |
