| 摘要 |
<p>The inventive cosmetic, hygienic or pharmaceutical product dispenser comprises a cylindrical head (32) defining a geometrical axis (17), a product-containing volume (60), a threaded axial rod (30) which is rotatably movable around the geometrical axis with respect to the head (32) and a piston (10) which consists of a piston body (12) radially interacting with the cylindrical head (32), a first threaded part (16A) and a second threaded part (16B), wherein the first threaded part is movable with respect to the piston body between a mounting position and an operating position. In the operating position, the first threaded part forms with the second threaded part an internal thread (26) interacting with the threaded rod. In the mounting position, the first threaded part is positioned at a distance from the second threaded part, thereby enabling the threaded rod to be positioned with respect to the piston body in such a way that said first threaded part is not engageable therewith.</p> |
