Grinder and coffee machine having such a grinder
AssigneeMelitta Professional Coffee Solutions GmbH & Co. KG
InventorsArmin Hensel, Bernd Buchholz
Life of this patent
Estimating the term…
Abstract
A grinder for grinding coffee beans having a first grinding tool and a second grinding tool forming a grinding nip, and the second grinding tool being rotatable relative to the first grinding tool. The grinder has at least one force generation device for applying a selectable force F to a first grinding tool or a second grinding tool, which force can be transmitted to the coffee beans. A coffee machine having such a grinder and a method for preparing coffee using said type of coffee machine and said type of grinder.
Claims25
A grinder (1) for grinding coffee beans (5), wherein the grinder (1) comprises two grinding disc carriers (M1, M2) each with a grinding tool (2, 8), a drive unit (AE) and at least one force-generating device (15), wherein the at least one force-generating device (15) is configured for applying an adjustable force F to a first grinding tool (2) of the grinding tools or a second grinding tool (8) of the grinding tools, which is transmitted to the coffee beans (5), wherein the force F is directed in such a way that the force F presses the respective grinding tool (2, 8), to which the force F is applied, in a direction of the respective other grinding tool (2, 8), and wherein the at least one force-generating device (15) is provided with an adjusting device (17) for the force F, wherein the adjusting device (17) comprises an adjusting ring (26) having a ramp (26c) and an adjusting element (27), wherein the ramp (26c) is in engagement with the first grinding disc carrier (M1).
A grinder (1) for grinding coffee beans (5), wherein the grinder (1) comprises two grinding disc carriers (M1, M2) each with a grinding tool (2, 8), a drive unit (AE) and at least one force-generating device (15), wherein the at least one force-generating device (15) is configured for applying an adjustable force F to a first grinding tool (2) of the grinding tools or a second grinding tool (8) of the grinding tools, which is transmitted to the coffee beans (5), wherein the force F is directed in such a way that the force F presses the respective grinding tool (2, 8), to which the force F is applied, in a direction of the respective other grinding tool (2, 8), and wherein the at least one force-generating device (15) is provided with an adjusting device (17) for the force F,
- wherein the first grinding tool (2) and the second grinding tool (8) are coupled to a respective grinding tool carrier (26, 9a) via latching lugs (2a, 8a) on a periphery of the respective grinding tool (2, 8).
A grinder (1) for grinding coffee beans (5), wherein the grinder (1) comprises two grinding disc carriers (M1, M2) each with a grinding tool (2, 8), a drive unit (AE) and at least one force-generating device (15), wherein the at least one force-generating device (15) is configured for applying an adjustable force F to a first grinding tool (2) of the grinding tolls or a second grinding tool (8) of the grinding tools, which is transmitted to the coffee beans (5), wherein the force F is directed in such a way that the force F presses the respective grinding tool (2, 8), to which the force F is applied, in a direction of the respective other grinding tool (2, 8), and wherein the at least one force-generating device (15) is provided with an adjusting device (17) for the force F,
- wherein the drive unit (AE) comprises a drive shaft (9), a gear housing (20) and a drive motor (20), wherein the drive shaft (9) is coupled to the second grinding disc carrier (M2) for driving the second grinding tool (8), is in engagement with the drive motor (10) indirectly via a gear or directly, and is rotatably mounted in the gear housing (20), and
- wherein the drive shaft (9) is in engagement with the drive motor (10) via a worm gear, wherein the drive shaft (9) is connected to a worm wheel (9c) of the worm gear, and in that the drive shaft (9) is in engagement with the second grinding tool (8) via a carrier section (9a).
A grinder (1) for grinding coffee beans (5), wherein the grinder (1) comprises two grinding disc carriers (M1, M2) each with a grinding tool (2, 8), a drive unit (AE) and at least one force-generating device (15), wherein the at least one force-generating device (15) is configured for applying an adjustable force F to a first grinding tool (2) of the grinding tools or a second grinding tool (8) of the grinding tools, which is transmitted to the coffee beans (5), wherein the force F is directed in such a way that the force F presses the respective grinding tool (2, 8), to which the force F is applied, in a direction of the respective other grinding tool (2, 8), and wherein the at least one force-generating device (15) is provided with an adjusting device (17) for the force F,
- wherein the drive unit (AE) comprises a drive shaft (9), a gear housing (20) and a drive motor (20), wherein the drive shaft (9) is coupled to the second grinding disc carrier (M2) for driving the second grinding tool (8), is in engagement with the drive motor (10) indirectly via a gear or directly, and is rotatably mounted in the gear housing (20), and
- wherein the gear housing (20) is connected to a grinding housing (25) of the grinder (1), wherein different positions of an ejection section (25e) of the grinding housing (25) are fixed relative to a position of the drive motor (10) of the gear housing (20).
A grinder (1) for grinding coffee beans (5), wherein the grinder (1) comprises two grinding disc carriers (M1, M2) each with a grinding tool (2, 8), a drive unit (AE) and at least one force-generating device (15), wherein the at least one force-generating device (15) is configured for applying an adjustable force F to a first grinding tool (2) of the grinding tools or a second grinding tool (8) of the grinding tools, which is transmitted to the coffee beans (5), wherein the force F is directed in such a way that the force F presses the respective grinding tool (2, 8), to which the force F is applied, in a direction of the respective other grinding tool (2, 8), and wherein the at least one force-generating device (15) is provided with an adjusting device (17) for the force F,
- wherein the grinder (1) comprises a grinding degree indicator (32) with an indicator (36), and
- wherein the grinding degree indicator (32) comprises an adjusting drive and adjusts the adjusting ring (26) of the adjusting device (15) to adjust a degree of grinding.
Dependencies are inferred from the claim text.