Patent ID: 8919595

Claim:
A closure comprising: a sealing portion assembled to an aperture of a container to seal the container; a plurality of locking protrusions, each locking protrusion being connected to a hinge extending from a lower rim of the scaling portion to protrude inwards, being fixed to a locking flange formed on the container, and having a lever protrusion which protrudes upwards from an upper end of each locking protrusion; a cover portion having a ring shape and assembled to an outside of the sealing portion to be vertically movable with respect to the sealing portion; a plurality of fixing protrusions protruding from an inner circumferential surface of the cover portion to support the locking protrusions; and a plurality of coupling bands each shaped as a thin, foldable strip to connect an upper end of the cover portion and a lower end of the sealing portion to each other, wherein when the closure is opened, the fixing protrusion contacts the hinge which results in the lever protrusion being pushed inward while the locking protrusion widens outward.