To provide a hopper for a fluid substance which does not generate a residue product at a discharge hole when the fluid substance such as a powder substance and a granular substance is discharged.
In the hopper for the fluid substance, the discharge hole provided at the bottom of the hopper storing the fluid substance such as the powder substance and the granular substance can be opened and closed by moving up and down a valve provided in the hopper, and the fluid substance is discharged from the discharge hole by operating the valve. A discharge hole 2 with a smooth face is formed in the discharge orifice 7 formed at the bottom part of the hopper 1, and the valve 3 provided with a closing member 9 stretchable in the peripheral direction is tightly fitted into this discharge hole 2.
COPYRIGHT: (C)2003,JPO
Takefusa Kubo
Kishida
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