portion 14 in the container main unit 1 the discharge port 12 in the container main unit 1 and the discharge port 54 of the lid material 5 are constructed to communicate with each other by causing the upper lid 52 to hinge with the base portion 51 opening closing the discharge port 5 in the lid material 5 becomes possible a configuration of the valve mechanism 2 u2033 according to the embodiment 2 is described below fig7 a and 7b are explanatory diagrams showing a valve portion 3 u2032 used in the valve mechanism 2 u2033 fig8 a and 8b are explanatory diagrams showing a valve seat portion 4 u2033 used in the valve mechanism 2 u2033 fig9 a and 9b are explanatory diagrams showing fluid discharging motions by the valve mechanism 2 u2033 according to the embodiment 2 additionally fig7 a shows a plan view of the valve portion 3 u2032 fib 7 b shows a lateral view of the valve portion 3 u2032 fig8 a shows a longitudinal section of the valve seat portion 4 fig8 b shows the bottom of the valve seat portion 4 u2033 the above mentioned valve portion 3 u2032 as shown in fig7 a and 7b has a base portion 37 a valve body 38 and a tapered coupling portion 36 which couples the base portion 37 and the valve body 38 this valve portion 3 u2032 comprises an elastic body in the same manner as the valve portion 3 u2032 in the embodiment 1 as a material used for this valve portion 3 u2032 for example a resin.