US 11,864,685 B2
Coffee machine
Takeo Harada, Tokyo (JP); and Masato Saito, Tokyo (JP)
Assigned to DAITO GIKEN, INC., Tokyo (JP)
Appl. No. 18/025,098
Filed by DAITO GIKEN, INC., Tokyo (JP)
PCT Filed Feb. 18, 2022, PCT No. PCT/JP2022/006674
§ 371(c)(1), (2) Date Mar. 7, 2023,
PCT Pub. No. WO2022/196246, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. 2021-045956 (JP), filed on Mar. 19, 2021.
Prior Publication US 2023/0240468 A1, Aug. 3, 2023
Int. Cl. A47J 31/42 (2006.01); A47J 42/16 (2006.01); A47J 42/46 (2006.01)
CPC A47J 31/42 (2013.01) [A47J 42/16 (2013.01); A47J 42/46 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A coffee machine, comprising:
a first grinder configured to grind coffee beans by rotation of a first motor;
a second grinder disposed downstream of the first grinder, and configured to grind the coffee beans which are ground by the first grinder by rotation of a second motor;
a storage that stores a recipe which specifies information on various conditions for grinding coffee beans; and
a processor that controls rotation speed of the first and the second motors based on the recipe, wherein
the first motor and the second motor are different motors,
the processor controls the rotation speed of the first motor separately from the rotation speed of the second motor, and
the processor changes the rotation speed of the first motor according to a type of coffee beans specified in the recipe, and controls an input amount of coffee beans input to the second grinder from the first grinder.