| 摘要 |
<p>A dispenser of paste-like products, in particular toothpaste, is composed of a cylindrical container (2) having a head (4), a bottom wall (5) slidable tightly therein one way toward the head (4), a pumping membrane (10) mounted inside it close to the head (4), a delivery conduit (27) attached rigidly to the head (4) and associated, through a part (30) thereof, with a sleeve (9) formed in one piece with the pumping membrane (10), said sleeve being therefore slidable tightly on the delivery conduit (30), an actuating lever (19) pivoted to the head (4) for movement between a home position and a toothpaste dispensing end position, said lever (19) acting on the sleeve (9) to operate the pumping membrane (10), a shutter (34) connected to the sleeve (9) by means of a plurality of small bridges (35) held circumferentially apart from one another, said shutter (34) being operative to close and open the delivery conduit at the inlet (28) mouth thereof. Thus, the advantage is afforded that, on filling the container (2), the paste will not leak into the delivery conduit (27) where it would be apt to harden as a result of some air leaking into it from the outside, and hinder the operation of the dispenser on the occasion of its initial use.</p> |
