Device for packaging and applying a stick of product, notably a cosmetic product, method for insertion and removal of said stick and kit for production of an assembly comprising said device

A device (10) for packaging and applying a stick (12) of product,

• notably a cosmetic product, comprising:
• a case (14);
• an external protective shell (30) mounted on the case (14) and provided on the interior surface thereof with at least one helical groove (36);
• a tubular element (40) mounted to rotate freely in said external protective shell (30), while being held axially relative to said shell and provided with at least one longitudinal groove (42);
• and
• a cup (20) for supporting the stick (12) of product mounted to slide in said tubular element (40) between a storage position, in which the stick (12) is at least in part accommodated inside the tubular element (40), and a use position, in which at least a part of the stick (12) projects from the external shell (30), the cup comprising at least one stud (23) engaged in the helical groove (36) and the longitudinal groove (42):
• the cup (20) comprising a lower cup (22) carrying the stud (23) and an upper cup (24) carrying the stick (12) of product, one of the upper cup (24) and the lower cup (22) comprising an axial projection (24c) extending axially toward the other of the upper cup (24) and the lower cup (22), and the device comprising:
• a system (50) for locking/unlocking the upper cup (24) with the lower cup (22) movable between a locked position, in which the axial projection (24c) interacts with said system (50), and an unlocked position, in which the axial projection (24c) is free relative to said system (50), characterised in that said system (50) can be actuated from the unlocked position toward the locked position and vice versa via axial movement of the upper cup (24) toward the lower cup (22).