| CPC A45D 40/16 (2013.01) [A45D 40/06 (2013.01); A45D 2040/0031 (2013.01); A45D 2040/0062 (2013.01); A45D 40/04 (2013.01); A45D 2040/204 (2013.01)] | 9 Claims |
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1. A refill unit configured to be coupled to a container assembly by a movement in a first direction, the refill unit comprising:
a lift shell forming a shell space on an inner side thereof, the shell space being open in an upward direction; and
a holder arranged to be movable along a vertical direction within the shell space,
wherein the lift shell comprises:
a shell cylinder shaped as a hollow column to form the shell space on an inner side thereof, the shell cylinder having an insertion hole defined in a lower surface thereof; and
a shell coupler part extending downward from the lower surface of the shell cylinder around the insertion hole to form an enclosing space on an inner side thereof, the shell coupler part having an outwardly protruding shell curb disposed on a lower portion thereof, the shell coupler part being open in the first direction such that the enclosing space is open in a downward direction and in the first direction, and
wherein the holder comprises:
a holder body arranged within the shell space; and
a holder coupler part extending downwards from the holder body to be inserted through the insertion hole into the enclosing space, the holder coupler part having a holder space defined on an inner side thereof and having an inwardly protruding holder curb defined on a lower portion thereof, the holder coupler part being open in the first direction such that the holder space is open in a downward direction and in the first direction.
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