Closure components for securing a bag to a container

In combination, a waste container having a support for supporting a bag-securing member and a closure component for securing a bag to the support by securing the bag to a projection of the support, the closure component comprising:

• an annular portion including an upper wall, an inner circumferential wall extending downward from an inner edge region of said upper wall and an outer circumferential wall extending downward from an outer edge region of said upper wall, a channel being defined on an underside of said annular portion by said inner circumferential wall, said outer circumferential wall and said upper wall;
• at least one pinch, each of said at least one pinch being on said inner circumferential wall and including a pair of slots extending upward from a lower edge of said inner circumferential wall or on said outer circumferential wall and including a pair of slots extending upward from a lower edge of said outer circumferential wall, said pair of slots of each of said at least one pinch being spaced apart from one another to enable a solid portion of said inner circumferential wall or said outer circumferential wall between said pair of slots to temporarily flex outward relative to said channel;
• and
• a respective detent on a same one of said inner circumferential wall or said outer circumferential wall as each of said at least one pinch and being situated on the solid portion of said inner circumferential wall or said outer circumferential wall between said pair of slots of said at least one pinch, said respective detent projecting inward from said inner circumferential wall or said outer circumferential wall into said channel,
• said upper wall including an opening directly above each of said at least one pinch and said detent on said at least one pinch,
• said annular portion being configured to press the bag against the support by trapping the bag in said channel and engaging with the support such that the projection of the support is pressed into said channel to thereby sandwich the bag between the projection and said annular portion.