To provide a filling nozzle, which has no driving source, such as an air cylinder or a motor, and does not need a falling resistance member or the like, thus appropriate for filling of a liquid containing a solid or a jellified liquid.
The filling nozzle comprises a vertical cylindrical nozzle body 21 having a discharge outlet 29 on the lower end thereof and supplied with a pressurized filling liquid inside, a valve member 41 having an upward pressure bearing surface 43 and made to come in close contact with the edge of the discharge outlet 29 from above, an rise and fall rod 44 extending upward from the valve member 41, and a diaphragm 51 fitted on the rod 44 at a position high above the valve member 41 by a prescribed distance and having a pressure bearing surface 52 facing the downside. The pressure of the filling liquid acts on both pressure bearing surfaces 43, 52, and the pressure difference between both bearing surfaces 43, 52 lifts the valve member 41, together with the rod 44.
MUKAI TADAHIRO
HARA TOSHIYUKI
Akira Watanabe
Norihiko Hibi
Kiyosue Yasuko
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