Patent ID: 9504350
Filing Date: 2016-11-29
CPC Classification: A47J

Claim Text:
1. A brewing device for a coffee machine comprising a filter retainer ( 3 ) which holds a retention filter ( 6 ) for ground coffee beans and which is designed as a filter carrier, a brewing cylinder ( 4 ), which is moved relative to the filter retainer ( 3 ) between a loading position for ground coffee beans and a brewing position and which bounds a brewing chamber ( 13 ) together with the retention filter ( 6 ) of the filter retainer ( 3 ) in the brewing position, which brewing chamber has an inlet for pressurised brewing water, wherein a brewing chamber bottom can be moved within the brewing cylinder and the brewing cylinder is moved into the loading position relative to a scraper in a movement step in order to scrape a cake of solid brewing residues from the brewing chamber, and a cleaning element ( 7 ) for removing solid brewing residues adhering to the retention filter ( 6 ) after a brewing process during a cleaning motion, the filter retainer ( 3 ) and the cleaning element ( 7 ) are spring-loaded toward each other in such a way that the cleaning element ( 7 ) touches the retention filter ( 6 ) and/or the filter retainer ( 3 ) during the cleaning motion of the cleaning element and thereby scrapes off the adhering solid brewing residues, and in that the cleaning element ( 7 ) is spring-loaded away from the brewing cylinder in direction of the retention filter ( 6 ) by means of a first compression spring ( 11 ) during the cleaning motion, wherein the cleaning element ( 7 ) is part of a cleaning bracket ( 8 ) which is spring-loaded by a second compression spring ( 11 ) during the cleaning motion in direction toward to the retention filter ( 6 ).