| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation restriction at timing of forced replacement of tea leaves in an automatic tea feeder which replaces the tea leaves at every prescribed numbers of cups to be fed and every prescribed hours. SOLUTION: A tea leaves replacement invalid cup number set by a setting device 5 is received by a CPU 1 via an I/O 4 so as to be stored in a RAM 2. The CPU 1 counts down this data at every time of feeding the tea and when a tea leaves replacement switch 7 for requiring the tea leaves replacement is pressed down at arbitrary timing and when the tea leaves replacement invalid cup number stored in the RAM 2 is 0, it permits the tea leaves replacement, however, when it is not 0, it does not permit the replacement so as to wait the next tea feeding operation. This constitution can prevent the tea leaves from being spoiled, because after replacing the tea leaves, tea leaves replacement is not allowed but after feeding tea to the tea leaves replacement invalid cup. |
