| 摘要 |
Disclosed herein is a coffee vending machine, in which a concentrate of coffee, cream, sugar, or the like is supplied to an agitator by using a screw-pump, and the supplied concentrate is mixed with hot water from a hot water supply to thereby automatically produce a coffee drink. The coffee vending machine includes a raw material container for containing a concentrate of coffee, cream, and sugar, a screw-pump disposed below the raw material container and for transferring the concentrate supplied from the raw material container into the lower portion thereof by means of a screw, an opening and closing means disposed below the screw-pump and for opening and closing a concentrate discharge-duct, an agitator disposed below the valve and for dissolving the concentrate into water, and a hot water supply for supplying hot water into the agitator.
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