EP-4740800-A2 - COFFEE MACHINE

EP4740800A2EP 4740800 A2EP4740800 A2EP 4740800A2EP-4740800-A2

Abstract

The present invention relates to a coffee machine provided with a second grinder for grinding coffee beans, and provides a coffee machine that is controlled in consideration of a state for grinding coffee beans in the grinder. A coffee machine (the coffee bean grinding machine GM shown in Figure 18 or the beverage production device 1 shown in Figure 1) including a second grinder 5B for grinding coffee beans, in which an input amount of coffee beans to be put into the second grinder 5B is controlled (step S24 shown in Figure 37).

Inventors

HARADA, TAKEO
SAITO, MASATO

Assignees

DAITO ENTERTAINMENT, INC.

Dates

Publication Date: 20260513
Application Date: 20220218

Claims (3)

A coffee machine (1, GM), comprising: a first grinder (5A) configured to grind coffee beans by rotation of a first motor (52a); and a second grinder (5B) disposed downstream of the first grinder (5A) and configured to grind coffee beans by rotation of a second motor(52b, 503a), wherein a storage unit (11b) storing a recipe including information on various conditions for grinding coffee beans; a processing unit (11a), wherein: the first motor (52a) and the second motor (52b, 503a) are different motors, the storage unit(11b) stores a plurality of types of reference value; the processing unit (11a) monitors the rotation speed of the first motor (52a), the processing unit (11a) selects a reference value among the plurality types of reference value depending to the information specified by the recipe and when the rotation speed of the first motor (52a) exceeds the reference value, the rotation speed of the first motor (52a) may be reduced.
The coffee machine according to claim 1, wherein the processing unit (11a) reduces the rotational speed of the first motor (52a) (step 24) if the rotational speed of the first motor (52a) exceeds the reference value during the period from when the rotation of the second motor (52b, 503a) (step 21) begins until the rotation of the second motor (52b, 503a) stops (step 29).
The coffee machine according to claim 1 or 2, wherein the processing unit (11a) makes the rotation of the second motor (52b, 503a) stop (step 29) after making the rotation of the first motor (52a) stop (step 27) in a case making the rotation of the second motor stop.

Description

Technical Field The present invention relates to a coffee machine including a grinder for grinding coffee beans. Background Art A coffee machine that performs preparation using coffee beans has been proposed (for example, Patent Literature 1). The coffee machine proposed in Patent Literature 1 is equipped with a coffee bean grinding device (grinder) and a coffee beverage extraction device. There are also coffee machines equipped with only a grinder. Citation List Patent Literature Patent Literature 1: Japanese Patent Laid-Open No. 2019-30433 Summary of Invention Technical Problem It has been found that a state for grinding coffee beans in this grinder may affect a taste of a coffee beverage extracted from ground beans. In view of the above circumstances, an object of the present invention is to provide a coffee machine that is controlled in consideration of a state for grinding coffee beans in the grinder. Solution to Problem The coffee machine according to the present invention for achieving the above object is a coffee machine including the features of claim 1. Further advantageous aspects of the invention are defined in claims 2-3. The coffee machine may comprise: a first grinder configured to grind coffee beans by rotation of a first motor; anda second grinder disposed downstream of the first grinder and configured to grind coffee beans by rotation of a second motor, whereinthe first motor and the second motor are different motors,the first grinder is capable of changing a rotation speed of the first motor according to a type of coffee beans, andan input amount of coffee beans to be put into the second grinder is controlled by controlling the rotation speed of the first motor. In addition, The first grinder may be a grinder for coarse grinding, and the second grinder may be a grinder for fine grinding. Further,the first motor may stop rotation before the second motor. In addition,the coffee machine may be a coffee machine including a second grinder configured to grind coffee beans, in whichan input amount of coffee beans to be put into the second grinder is controlled. The coffee beans referred to herein may be cracked beans, ground beans, or beans that are not cracked or ground. The input amount is controlled to prevent ground beans from staying in the second grinder for an unnecessarily long time. In the second grinder, when the input amount of coffee beans is larger than an output amount of ground beans, the ground beans stay in the second grinder for a longer time, and the ground beans are easily adversely affected by heat. Therefore, in the coffee machine, the input amount is controlled to prevent this from happening. Therefore, the machine is controlled in consideration of a state for grinding coffee beans in the grinder. In the coffee machine, the input amount may be controlled in accordance with a type of coffee beans. The type of coffee beans may be a variety of coffee beans, a degree of roasting of coffee beans, or a combination of the type and the degree of roasting. The coffee machine may further include a first grinder provided upstream of the second grinder and configured to grind coffee beans, and the input amount of coffee beans to be put into the second grinder may be controlled by controlling a speed at which the first grinder grinds coffee beans. The coffee machine may further include a supply device provided upstream of the second grinder and configured to supply coffee beans downstream, and the input amount of coffee beans to be put into the second grinder may be controlled by controlling a supply speed of coffee beans by the supply device. The coffee machine may further include: a first grinder disposed upstream of the second grinder and configured to grind coffee beans; and a supply device disposed upstream of the first grinder and configured to supply coffee beans downstream, and at least one of the first grinder or the supply device may be controlled to reduce the input amount of coffee beans to be put into the second grinder. For example, both the first grinder and the supply device may be controlled to reduce the input amount of coffee beans to be put into the second grinder. Advantageous Effects of Invention According to the present invention, it is possible to provide a coffee machine that is controlled in consideration of a state for grinding coffee beans in a grinder. Brief Description of Drawings [Figure 1] Figure 1 is an external view of a beverage production device 1.[Figure 2] Figure 2 is a partial front view of the beverage production device 1.[Figure 3] Figure 3 is a block diagram of a control device 11.[Figure 4] Figure 4 is a perspective view of a pulverizing device 5.[Figure 5] Figure 5 is a longitudinal cross-sectional view of the pulverizing device 5 shown in Figure 12.[Figure 6] Figure 6 is an external perspective view of a coffee bean grinding machine.[Figure 7] Figure 7 is a block diagram of a control device of the coffee bean grinding machine.[Figure 8] (a)