| 摘要 |
<p>The espresso machine with a rotatable, ceramic disk valve (1) as selective water-steam distributor involves a drive motor (2) for activation of the valve and a motor control device (3). In the drive connection between the motor and the disk valve is a malteser gear (4) which adjusts the disk valve in engagement stages. The control device switches off the motor after at least one engagement stage of the malteser gear. <??>In the malteser gear is formed a malteser disk (8) with radial drive slots (9-16) as well as a drive component (5) rotatably connected to the motor. The drive component has a drive pin (6) which when the drive component rotates activates the malteser disk into an engagement stage. The drive pin during the course of only a part of the rotation of the drive component engages in one of the drive slots. The malteser disk between every two drives slots has a securing catch (17), in which a securing component (7) engages in the rotary positions of the malteser disk and of the rive component at the end of each engagement stage.</p> |
