| 摘要 |
PROBLEM TO BE SOLVED: To provide a drink extractor of an automatic vending machine, capable of extracting drink with much foam extracted with high pressure and drink with little foam extracted with low pressure with one extractor. SOLUTION: A hot water supply side circulating pipe 5 for circulating hot water supplied to an extract cylinder 1 is provided with a first passage 5a having a small circulating resistance and a second passage 5b having a large circulating resistance. A solenoid valve 5c of the first passage 5a is opened and closed to apply a different circulating resistance to the hot water supplied to the extract cylinder 1, whereby the circulating resistance of hot water supplied to the extract cylinder 1 is lowered and the internal pressure of the extract cylinder 1 is increased to extract espresso coffee, and the circulating resistance is increased and the internal pressure of the extract cylinder 1 is lowered to extract regular coffee. |
