| 摘要 |
An automatic coffee machine has a flow heater (1) for preparing hot water, a facility for feeding coffee powder into a percolator, consisting of a percolating chamber (14) formed by a stationary tube section (8) arranged with a vertical axis and two stoppers (12, 13) located at least partly within the flow heater (1), and an axial drive for moving the upper stopper (12) in the direction of the tube section (8) axis, a drive for moving the upper stopper (12) into the parked and stand-by positions relative to said axis, as well as a vertical drive for the lower stopper (13). The upper stopper (12) is mounted on a pivot arm (24) which can be pivoted about a bearing (25) which is fixed in position. The drive for moving the upper stopper (12) into the parked and stand-by positions is an actuator. The upper stopper (12) is constructed in one piece and can be moved in a sealing manner into the tube section (8), by means of the axial drive which is mounted on the pivot arm (24), to achieve the percolating position.
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