Refillable container

A refillable container for a stick type cosmetic product, comprising:

• a base assembly comprising an outer shell and a button member;
• a cap detachably attached to the base assembly;
• a refill cartridge comprising a lifting member, a sleeve member, and a driving member;
• wherein the outer shell of the base assembly includes a sidewall, a bottom wall, an opening at a distal end of the outer shell, and defining a cavity therein;
• wherein the button member of the base assembly comprises a button portion and a pair of arcuate portions;
• wherein the pair of arcuate portions is opposite to each other in a circumferential direction, and wherein the pair of arcuate portions each includes a first end connected to the button portion and a free second end;
• wherein the button portion is exposed to an outer side through an aperture formed in the sidewall of the outer shell of the base assembly, while the pair of arcuate portions are located inside the cavity of the outer shell;
• wherein the refill cartridge is detachably received at least partially within the cavity of the outer shell of the base assembly;
• wherein the driving member is inserted into the cavity of the outer shell and is mounted therein such that when the outer shell rotates the driving member also rotates;
• wherein the lifting member includes a lifting rod and a cosmetic cup formed on the upper portion of the lifting rod;
• wherein the cosmetic cup accommodates the stick type cosmetic product therein;
• wherein screw threads are formed at the outer surface of the lifting rod;
• wherein the sleeve member includes a sidewall and a rotation limiting part;
• wherein the rotation limiting part includes an inner transverse wall having an opening;
• wherein the driving member is received inside a lower portion of the sleeve member below the inner transverse wall such that the driving member can rotate with respect to the sleeve member;
• wherein the lifting member is received inside the sleeve member such that the cosmetic cup is accommodated on an upper side of the inner transverse wall, and at least a portion of the lifting rod passes through the opening of the inner transverse wall and is received inside the driving member;
• wherein a screw thread is formed on the inner surface of an upper portion of a sidewall of the driving member so as to engage the screw threads formed on the outer surface of the lifting rod;
• wherein the rotation limiting part contacts the lifting rod of the lifting member in order to prevent the lifting member from rotating;
• wherein the lifting rod is raised and lowered by the rotation of the driving member;
• wherein the pair of arcuate portions of the button member detachably fit around the driving member of the refill cartridge to releasably lock the refill cartridge within the base assembly;
• and
• wherein when the button portion is pressed, the pair of arcuate portions of the button member elastically deform to release the refill cartridge from the base assembly.