| 摘要 |
<p>The invention concerns a dispensing nozzle (1) with a membrane (14) for liquid or pasty products of the type comprising, in a dispensing body (2) connected to a liquid or pasty product measuring device, a nozzle body (8) provided with a plurality of ejection holes (8b) uniformly distributed and emerging into the hollow (3) of the dispenser body (2), and a stopping membrane (14) disposed above the nozzle body (8) and capable of stopping the upper inlet openings of the ejection holes (8b). For a maximum service pressure supplied in the dispensing chamber (21), the membrane (14) rests continuously on the central zone (8f) of the extreme upper face (8a) of the nozzle body (8), this central zone (8f) being surrounded by all of the inlet openings of the ejection holes (8b) and between its central section (14) and its clamped edge (14a), the membrane (14) comprises a slightly truncated-conical section (14c) which, by deforming under the effect of the compressed air in the control chamber (22), is capable of stopping the said inlet openings of the ejection holes (8b). <IMAGE></p> |
