| 摘要 |
PROBLEM TO BE SOLVED: To prevent spouting or dripping of a content, in an extrusion container having a nozzle, wherein a bottom wall is pushed in to press a filling space to pressure-feed a content to the outside, and outside air is introduced by releasing the pushing-in and the bottom wall is pushed in again to pressure-feed the content.SOLUTION: The extrusion container having a nozzle where the content pressure-fed by pushing in a bottom wall 3 is discharged through a through-path R, and the outside air is sucked through the through-hole R by releasing the pushing-in includes: an annular body 11 fitted and held inside a loading cylinder 7, and a cylindrical body 12 integrally connected to the annular body 11. The end part 13 of the cylindrical body 12 is bent toward a valve seat 8, and its end 13a is seated over the entire periphery of the valve seat 8 to partition a filling space Sand a through-hole R, and it is separated from the valve seat 8 by pressure-feeding of the content to serve as a discharge valve for communicating the filling space Swith the through-hole R, and it is separated from the valve seat 8 by negative pressure generated in the filling space Sto serve as a suction valve for communicating the through-hole R with the filling space S. |
