Patent ID: 7878354

Claim:
A one touch-type container stopper, comprising: a hermetically sealing holding part having a hermetically sealing upper end and a plurality of first supporting protrusions at a lower end thereof, the first supporting protrusions being formed to protrude inwardly such that they are elastically supported along an outer peripheral surface of a mouth of the container such that the hermetically sealing upper end of the hermetically sealing holding part is fitted hermetically due to the elastic supporting around the mouth to seal the container, wherein each of the first supporting protrusions is laterally formed with a hollow portion having a lower end cut; and a cover part having a hinge part formed integrally with and extending from the first supporting protrusions and then bent, and a plurality of second supporting protrusions at a lower end thereof to protrude inwardly therefrom, each of the plurality of second supporting protrusions being connected to a corresponding one of the plurality of first supporting protrusions through the hinge part, the cover part being positioned outside of the hermetically sealing holding part, wherein the second supporting protrusions are connected to one another through a band member, so as to prevent the stopper from being opened with the band member not broken, wherein the plurality of second supporting protrusions are formed integrally with the first supporting protrusions to protrude diametrically inwardly, wherein when the hermetically sealing upper end of the hermetically sealing holding part is pressed down and the cover part is simultaneously pulled upward at a plurality of ridges formed along an edge of the upper end of the cover part, the lower ends of the hermetically sealing holding part and the cover part connected through the hinge part are elastically deformed so that the first and second supporting protrusions are flared outwardly while pivoting outwardly, wherein the band member is constructed to be broken when the second supporting protrusions are expanded due to an external force and thus tension larger than a predetermined threshold is exerted on the band member.