| 摘要 |
PROBLEM TO BE SOLVED: To extract optimal coffee of excellent taste and flavor by pouring hot water to coffee powder as if drawing a circle by moving a hot water spout at the same time with an X-axis direction and a Y-axis direction in the state of pouring hot water. SOLUTION: A belt driving motor 25 moves a driving block 14 in the direction of a Y-axis to move a hot water spout 11 in the direction of the Y-axis within the diameter size of a filter. A link driving motor 26 rotates a rotary link 27 to move a subordinate link 28 in the direction of the X-axis to move the spout 11 in the direction of the X-axis within the diameter size of the filter 10. A series of extracting process of coffee is controlled by a microcomputer to control the simultaneous movement in the directions of the X-axis and Y-axis of a hot-water pouring pipe 16, pouring hot water four times by four-dividing a required hot water quantity, the number of times of drawing a circle at the time of pouring hot water from the spout 11, a suspending time between each pouring of hot water and a period for steaming after finishing the last pouring in the state of drawing a circle. |
