Patent ID: 7249694

Claim:
A valve mechanism adapted for a fluid-discharging port of a tube-type fluid container, comprising: a valve seat portion having an opening for passing a fluid therethrough; a valve portion comprising a valve body corresponding to said opening to close said opening with the valve body along a circumferential periphery of the valve body, and a shaft connected to said valve body and extending downward from said valve body; and a valve support portion comprising: (i) a bottom plate to which a tip of the shaft is connected; (ii) an annular support fixedly connected to the valve seat portion; and (iii) multiple connectors each connecting the bottom plate and the annular support and having multiple points of flexion, said connectors elastically urging the bottom plate downward to close the opening with the valve body and being bendable at the multiple points of flexion as the bottom plate moves upward and pushes the valve portion to open the opening, wherein said valve portion comprises a guide portion disposed on the side of the valve body opposite to said shaft, and said valve mechanism further comprises a supporting body comprising (a) an opening portion for discharging a fluid and (b) a guide material guiding said guide portion.