JP2020078557A - Extraction device, display method for extraction device and system - Google Patents

Abstract

To provide a technology that enables display of a state in a process of extracting beverage liquid from an extraction object.SOLUTION: An extraction device displays changes to a target pressure inside an extraction container (pressure information), changes to a target amount of hot water inside the extraction container (liquid amount information), change in measured pressure inside the extraction container (pressure information), and change in measured amount of hot water inside the extraction container (liquid amount information) across the whole period of extracting a cup of coffee and stores them in storage means. The extraction device can display them again in response to user's operation to an operation unit of an information display device.SELECTED DRAWING: Figure 19

Description

  The present invention relates to an extraction device that extracts beverage liquid from an extraction target, a display method in the extraction device, and a system.

  As a method for extracting coffee liquid, an immersion method in which ground beans are immersed in hot water (for example, Patent Document 1) and a permeation method in which ground beans pass through hot water (for example, Patent Document 2) are known.

Japanese Patent Laid-Open No. 05-081544 JP, 2003-024703, A

  Both the conventional immersion type and the transmission type are required to be able to display the state in the process of extracting the beverage liquid from the extraction target.

  An object of the present invention is to provide a technique capable of displaying a state in the process of extracting a beverage liquid from an extraction target.

  An extraction device according to the present invention controls an extraction container for extracting coffee from coffee beans, a supply means for supplying a liquid to the extraction container when extracting the coffee, and a supply of the liquid by the supply means. Control means, a storage means for storing the liquid volume of the extraction container as liquid volume information, and a time series change of the liquid volume of the extraction container when extracting the coffee based on the control by the control means. Display means for displaying as a liquid quantity change graph, the display means displays the liquid quantity change graph on the basis of the liquid quantity information read from the storage means, and the display means is for a user. In response to the operation, the operation is reflected in the mode of the change of the liquid amount represented by a part of the liquid amount change graph, and the storage means corresponds to the reflected liquid amount change graph. The liquid amount information is newly stored, and the control unit reads the liquid amount information newly stored in the storage unit, and the liquid amount corresponding to the read liquid amount information is the liquid amount of the extraction container. It is characterized by controlling so that

  Further, the extraction device according to the present invention is an extraction container for extracting coffee from coffee beans, a supply means for supplying a liquid to the extraction container when extracting the coffee, and a supply of the liquid by the supply means. Control means for controlling the, the storage means for storing the hot water temperature of the extraction container as hot water temperature information, when extracting the coffee based on the control of the control means, time series of the hot water temperature of the extraction container Display means for displaying the change as a hot water temperature change graph, the display means displays the hot water temperature change graph based on the hot water temperature information read from the storage means, and the display means, In response to the user's operation, the operation is reflected and displayed in a mode of change in the hot water temperature represented by a part of the hot water temperature change graph, and the storage means displays the hot water temperature change graph in which the reflection has been performed. Corresponding hot water temperature information is newly stored, the control means reads the hot water temperature information newly stored in the storage means, and the hot water temperature corresponding to the read hot water temperature information is stored in the extraction container. It is characterized in that it is controlled so as to reach the hot water temperature.

  Further, the display method according to the present invention is a display method executed in a brewing device, wherein when extracting coffee, a supply step of supplying a liquid to an extraction container for extracting the coffee from coffee beans, A control step of controlling the supply of the liquid in the supply step, a storage step of storing the liquid volume of the extraction container as liquid volume information, and a step of extracting the coffee based on the control in the control step of the extraction container. A display step of displaying a time-series change of the liquid quantity as a liquid quantity change graph, wherein the display step displays the liquid quantity change graph based on the liquid quantity information stored in the storage step. However, in the display step, the operation is reflected in the mode of change in the liquid amount represented by a part of the liquid amount change graph in response to the user's operation, and the operation is reflected in the storage step. Further, liquid volume information corresponding to the liquid volume change graph is newly stored, and in the control step, the liquid volume information newly stored in the storage step is read out and corresponds to the read out liquid volume information. It is characterized in that the liquid volume is controlled to be the liquid volume of the extraction container.

  Further, the system according to the present invention is a system including an extraction device for extracting coffee from coffee beans and a mobile terminal, wherein the extraction device is an extraction container for extracting coffee from the coffee beans, When extracting coffee, supply means for supplying a liquid to the extraction container, control means for controlling the supply of the liquid by the supply means, storage means for storing the liquid amount of the extraction container as liquid amount information, When extracting the coffee based on the control by the control unit, a transmitting unit that transmits information for displaying a time-series change in the liquid amount of the extraction container as a liquid amount change graph to the mobile terminal. The mobile terminal includes a receiving unit that receives information for displaying a time-series change in the liquid volume of the extraction container, which is transmitted by the transmitting unit, as a liquid volume change graph, and a receiving unit that receives the information by the receiving unit. Display means for displaying a time-series change in the liquid volume of the extraction container as a liquid volume change graph based on the information, and the display means, the liquid volume information read from the storage means. The liquid amount change graph is displayed based on the display means, and the display unit displays the operation by reflecting the operation on the mode of the liquid amount change represented by a part of the liquid amount change graph, in accordance with the user's operation, The storage unit newly stores liquid amount information corresponding to the reflected liquid amount change graph, and the control unit reads the liquid amount information newly stored in the storage unit, The liquid amount corresponding to the read liquid amount information is controlled to be the liquid amount of the extraction container.

  Further, the display method according to the present invention is a display method executed in a brewing device, wherein when extracting coffee, a supply step of supplying a liquid to an extraction container for extracting the coffee from coffee beans, A control step of controlling the supply of the liquid in the supply step, a storage step of storing the hot water temperature of the extraction container as hot water temperature information, and when extracting the coffee based on the control in the control step, A display step of displaying changes in hot water temperature over time as a hot water temperature change graph, wherein the display step displays the hot water temperature change graph based on the hot water temperature information stored in the storage step. However, in the display step, the operation is reflected and displayed in the manner of change in the hot water temperature represented by a part of the hot water temperature change graph in accordance with the user's operation, and in the storage step, the reflection is performed. Further, hot water temperature information corresponding to the hot water temperature change graph is newly stored, and in the control step, the hot water temperature information newly stored in the storage step is read out and corresponds to the read hot water temperature information. The hot water temperature is controlled to be the hot water temperature of the extraction container.

  According to the present invention, it is possible to display the state in the process of extracting the beverage liquid from the extraction target.

The external view of a beverage manufacturing apparatus. The partial front view of the beverage manufacturing apparatus of FIG. 1 is a schematic diagram of the function of the beverage manufacturing apparatus. The partially broken perspective view of a separation apparatus. The perspective view of a drive unit and an extraction container. The figure which shows the closed state and open state of the extraction container of FIG. The front view which shows a part structure of an upper unit and a lower unit. FIG. 8 is a vertical sectional view of FIG. 7. The schematic diagram of a central part unit. The block diagram of the control apparatus of the beverage manufacturing apparatus of FIG. (A) And (B) is a flow chart which shows the example of control which a control device performs. FIG. 3 is a schematic diagram of a liquid feed rate adjusting device. The IV-IV sectional view taken on the line of FIG. 12, and the sectional view of another example. The figure for demonstrating operation|movement of a preheating. The figure for demonstrating operation|movement of hot water supply from steaming to extraction. The figure which shows the change of atmospheric pressure. The figure which shows a plot display screen. It is a figure which shows a profile setting screen. The figure which shows a plot display screen. The figure which shows the display screen in which the user operation was reflected. The figure which shows the display screen in which the user operation was reflected. The figure which shows the display screen in which the user operation was reflected. The figure which shows a plot display screen. The figure which shows the display screen displayed in tabular form. The figure which shows the display screen displayed in tabular form. The figure which shows the display screen displayed in tabular form. The figure which shows the profile displayed in tabular form. The figure which shows the profile displayed in tabular form. The figure which shows the profile displayed in tabular form. The figure which shows the profile displayed in tabular form.

  An embodiment of the present invention will be described with reference to the drawings. In addition, the same reference numerals are given to the same components, and the description thereof will be omitted.

<1. Outline of beverage manufacturing equipment>
FIG. 1 is an external view of the beverage manufacturing apparatus 1. The beverage manufacturing apparatus 1 of the present embodiment is an apparatus for automatically manufacturing a coffee beverage from roasted coffee beans and a liquid (here, water), and can manufacture one cup of coffee beverage per one manufacturing operation. .. The roasted coffee beans that are the raw material can be stored in the canister 40. A cup placing portion 110 is provided at a lower portion of the beverage production apparatus 1, and the produced coffee beverage is poured into the cup from the pouring portion 10c.

  The beverage manufacturing apparatus 1 includes a housing 100 that forms an exterior thereof and surrounds an internal mechanism. The housing 100 is roughly divided into a main body 101 and a cover 102 that covers a part of the front surface and a part of the side surface of the beverage manufacturing apparatus 1. An information display device 12 is provided on the cover portion 102. In the case of the present embodiment, the information display device 12 is a touch panel type display, and is capable of accepting inputs of an administrator of the device and a drink consumer in addition to displaying various types of information. The information display device 12 is attached to the cover unit 102 via the moving mechanism 12a, and can be moved in the vertical direction within a certain range by the moving mechanism 12a.

  The cover part 102 is also provided with a bean input port 103 and a door 103a for opening and closing the bean input port 103. By opening the opening/closing door 103, it is possible to put roasted coffee beans different from the roasted coffee beans stored in the canister 40 into the bean charging port 103. This makes it possible to provide consumers with special drinks with special drinks.

  In the case of the present embodiment, the cover portion 102 is formed of a translucent material such as acrylic or glass, and the entire cover portion 102 constitutes a transparent cover which is a transmissive portion. Therefore, the mechanism inside the cover 102 is visible from the outside. In the case of the present embodiment, a part of the manufacturing unit that manufactures the coffee beverage is visible through the cover unit 102. In the case of the present embodiment, the entire main body 101 is a non-transparent portion, and it is difficult to visually recognize the inside from the outside.

  FIG. 2 is a partial front view of the beverage manufacturing apparatus 1, and is a diagram showing a part of the manufacturing unit which is visible to the user when the beverage manufacturing apparatus 1 is viewed from the front. The cover portion 102 and the information display device 12 are shown in phantom lines.

  The housing 100 in the front part of the beverage manufacturing apparatus 1 has a double structure including a main body 101 and an outer (front side) cover 102 thereof. A part of the manufacturing unit is arranged in the front-rear direction between the main body unit 101 and the cover unit 12, and is visible to the user through the cover unit 102.

  In the case of the present embodiment, some of the mechanisms of the manufacturing unit that can be visually recognized by the user through the cover unit 102 are a collective conveying unit 42, grinders 5A and 5B, a separating device 6, an extraction container 9 and the like, which will be described later. A rectangular recessed portion 101a that is recessed inward is formed on the front surface of the main body 101, and the extraction container 9 and the like are located inwardly of the recessed portion 101a.

  The visibility of these mechanisms from the outside through the cover 102 may facilitate the inspection and operation confirmation for the administrator. In addition, beverage consumers may be able to enjoy the manufacturing process of coffee beverages.

  The cover 102 is laterally openably supported by the main body 101 via a hinge 102a at its right end. An engagement portion 102b that keeps the main body portion 101 and the cover portion 102 closed is provided at the left end portion of the cover portion 102. The engaging portion 102b is, for example, a combination of a magnet and iron. By opening the cover 102, the administrator can inspect a part of the above-mentioned manufacturing unit inside the cover 102.

  In addition, in the case of the present embodiment, the cover portion 102 is of a horizontal opening type, but may be of a vertical opening type (vertical opening type) or a sliding type. Further, the cover 102 may not be opened and closed.

  FIG. 3 is a schematic diagram of the functions of the beverage manufacturing device 1. The beverage manufacturing device 1 includes a bean processing device 2 and a brewing device 3 as a coffee beverage manufacturing unit.

  The bean processing device 2 generates ground beans from roasted coffee beans. The extraction device 3 extracts the coffee liquid from the ground beans supplied from the bean processing device 2. The extraction device 3 includes a fluid supply unit 7, a drive unit 8, which will be described later, an extraction container 9, and a switching unit 10. The ground beans supplied from the bean processing device 2 are put into the extraction container 9. The fluid supply unit 7 puts hot water into the extraction container 9. Coffee liquid is extracted from the ground beans in the extraction container 9. Hot water containing the extracted coffee liquid is delivered to the cup C as a coffee beverage via the switching unit 10.

<2. Fluid supply unit and switching unit>
The configurations of the fluid supply unit 7 and the switching unit 10 will be described with reference to FIG. First, the fluid supply unit 7 will be described. The fluid supply unit 7 supplies hot water to the extraction container 9 and controls the atmospheric pressure in the extraction container 9. In this specification, when the atmospheric pressure is illustrated by a numeral, it means an absolute pressure unless otherwise specified, and the gauge pressure is an atmospheric pressure at which the atmospheric pressure is 0 atmospheric pressure. The atmospheric pressure refers to the atmospheric pressure around the extraction container 9 or the atmospheric pressure of the beverage manufacturing apparatus. For example, when the beverage manufacturing apparatus is installed at a position at an altitude of 0 m above sea level, the international civil aviation organization (= “International Civil Aviation Organization”) Aviation Organization" [[omitted] ICAO]) is the standard atmospheric pressure (1013.25 hPa) at 0 m above sea level of the International Standard Atmosphere [[omitted] ISA] established in 1976.

  The fluid supply unit 7 includes pipes L1 to L3. The pipe L1 is a pipe through which air flows, and the pipe L2 is a pipe through which water flows. The pipe L3 is a pipe through which both air and water can flow.

  The fluid supply unit 7 includes a compressor 70 as a pressure source. The compressor 70 compresses the atmosphere and sends it out. The compressor 70 is driven using, for example, a motor (not shown) as a drive source. The compressed air sent from the compressor 70 is supplied to the reserve tank (accumulator) 71 via the check valve 71a. The air pressure in the reserve tank 71 is monitored by the pressure sensor 71b, and the compressor 70 is driven so as to be maintained at a predetermined air pressure (7 atm (6 atm in gauge pressure) in this embodiment). The reserve tank 71 is provided with a drain 71c for drainage, and water generated by compression of air can be drained.

  Hot water (water) that constitutes a coffee drink is accumulated in the water tank 72. The water tank 72 is provided with a heater 72a for heating the water in the water tank 72 and a temperature sensor 72b for measuring the temperature of the water. The heater 72a maintains the temperature of the accumulated hot water at a predetermined temperature (120 degrees Celsius in this embodiment) based on the detection result of the temperature sensor 72b. The heater 72a is turned on when the temperature of the hot water is 118 degrees Celsius, and turned off when the temperature of the hot water is 120 degrees Celsius, for example.

  The water tank 72 is also provided with a water level sensor 72c. The water level sensor 72c detects the water level of the hot water in the water tank 72. When the water level sensor 72c detects that the water level has dropped below a predetermined water level, water is supplied to the water tank 72. In the case of this embodiment, water is supplied via a water purifier (not shown). An electromagnetic valve 72d is provided in the middle of the pipe L2 from the water purifier, and when the water level sensor 72c detects a decrease in the water level, the electromagnetic valve 72d is opened and water is supplied. The valve 72d is closed to cut off the water supply. In this way, the hot water in the water tank 72 is maintained at a constant water level. Water may be supplied to the water tank 72 each time hot water used for manufacturing a coffee beverage is discharged.

  The water tank 72 is also provided with a pressure sensor 72g. The pressure sensor 72g detects the atmospheric pressure in the water tank 72. The water tank 72 is supplied with the atmospheric pressure in the reserve tank 71 via a pressure regulating valve 72e and a solenoid valve 72f. The pressure regulating valve 72e reduces the atmospheric pressure supplied from the reserve tank 71 to a predetermined atmospheric pressure. In the case of this embodiment, the pressure is reduced to 3 atm (2 atm in gauge pressure). The electromagnetic valve 72f switches between supply and cutoff of the atmospheric pressure adjusted by the pressure adjusting valve 72e to the water tank 72. The electromagnetic valve 72f is controlled to open and close so that the atmospheric pressure in the water tank 72 is maintained at 3 atmospheric pressure except when water is supplied to the water tank 72. At the time of supplying water to the water tank 72, the air pressure in the water tank 72 is lower than the water pressure of the water by the solenoid valve 72h so that the water tank 72 is smoothly replenished with water (for example, 2. Depressurize to less than 5 atmospheres. The solenoid valve 72h switches whether to open the inside of the water tank 72 to the atmosphere, and opens the inside of the water tank 72 to the atmosphere when the pressure is reduced. Further, the solenoid valve 72h releases the inside of the water tank 72 to the atmosphere and maintains the inside of the water tank 72 at 3 atm when the atmospheric pressure in the water tank 72 exceeds 3 atm except when the water is supplied to the water tank 72. To do.

  The hot water in the water tank 72 is supplied to the extraction container 9 via the check valve 72j, the electromagnetic valve 72i and the pipe L3. The hot water is supplied to the extraction container 9 by opening the electromagnetic valve 72i, and the hot water supply is shut off by closing the electromagnetic container 72i. The amount of hot water supplied to the extraction container 9 can be controlled by the opening time of the solenoid valve 72i. However, the opening/closing of the solenoid valve 72i may be controlled by measuring the supply amount. The pipe L3 is provided with a temperature sensor 73e for measuring the temperature of the hot water, and the temperature of the hot water supplied to the extraction container 9 is monitored.

  The atmospheric pressure of the reserve tank 71 is also supplied to the extraction container 9 via the pressure regulating valve 73a and the electromagnetic valve 73b. The pressure regulating valve 73a reduces the atmospheric pressure supplied from the reserve tank 71 to a predetermined atmospheric pressure. In the case of the present embodiment, it is possible to reduce the pressure to 5 atm (4 atm in gauge pressure) or less. The electromagnetic valve 73b switches between supply and cutoff of the atmospheric pressure adjusted by the pressure adjusting valve 73a to the extraction container 9. The pressure inside the extraction container 9 is detected by the pressure sensor 73d. At the time of pressurizing the inside of the extraction container 9, the electromagnetic valve 73b is opened based on the detection result of the pressure sensor 73d, so that the inside of the extraction container 9 has a predetermined atmospheric pressure (in the present embodiment, a maximum of 5 atmospheric pressure (a gauge pressure of 4 atmospheric pressure). )) Pressurize. The air pressure in the extraction container 9 can be reduced by the solenoid valve 73c. The electromagnetic valve 73c switches whether to open the inside of the extraction container 9 to the atmosphere, and opens the inside of the extraction container 9 to the atmosphere when the pressure is abnormal (for example, when the inside of the extraction container 9 exceeds 5 atmospheric pressure).

  After the production of one coffee beverage is finished, in the present embodiment, the inside of the extraction container 9 is washed with water. The electromagnetic valve 73f is opened during cleaning and supplies water to the extraction container 9.

  Next, the switching unit 10 will be described. The switching unit 10 is a unit that switches the delivery destination of the liquid delivered from the extraction container 9 to either the pouring portion 10c or the waste tank T. The switching unit 10 includes a switching valve 10a and a motor 10b that drives the switching valve 10a. The switching valve 10a switches the flow path to the pouring portion 10c when the coffee beverage in the extraction container 9 is delivered. The coffee beverage is poured from the pouring portion 10c into the cup C. When discharging the waste liquid (water) and the residue (ground beans) at the time of cleaning, the flow path is switched to the waste tank T. The switching valve 10a is a 3-port ball valve in this embodiment. Since the residue passes through the switching valve 10a during cleaning, a ball valve is suitable for the switching valve 10a, and the motor 10b switches its flow path by rotating its rotation shaft.

<3. Bean processing equipment>
The bean processing apparatus 2 will be described with reference to FIGS. 1 and 2. The bean processing device 2 includes a storage device 4 and a crushing device 5.

<3-1. Storage device>
The storage device 4 includes a plurality of canisters 40 in which roasted coffee beans are stored. In the case of this embodiment, three canisters 40 are provided. The canister 40 includes a tubular main body 40a that houses roasted coffee beans, and a handle 40b provided on the main body 40a, and is configured to be detachable from the beverage manufacturing apparatus 1.

  Each canister 40 may store different types of roasted coffee beans, and the type of roasted coffee beans used for manufacturing a coffee beverage may be selected by an operation input to the information display device 12. Roasted coffee beans of different types are, for example, roasted coffee beans of different types of coffee beans. The roasted coffee beans of different types are coffee beans of the same type, but may be roasted coffee beans of different roasting degrees. The roasted coffee beans of different types may be roasted coffee beans of different types or roasting degrees. Further, at least one of the three canisters 40 may contain roasted coffee beans in which roasted coffee beans of a plurality of types are mixed. In this case, the roasted coffee beans of each variety may have the same degree of roasting.

  Although the plurality of canisters 40 are provided in the present embodiment, the configuration may be such that only one canister 40 is provided. When a plurality of canisters 40 are provided, the same type of roasted coffee beans may be stored in all or a plurality of canisters 40.

  Each canister 40 is detachably attached to the weighing and conveying device 41. The weighing/conveying device 41 is, for example, an electric screw conveyor, and automatically weighs a predetermined amount of roasted coffee beans contained in the canister 40 and sends it to the downstream side.

  Each weighing and conveying device 41 discharges roasted coffee beans to the collecting and conveying section 42 on the downstream side. The collective conveying unit 42 is formed of a hollow member and forms a conveying passage for roasted coffee beans from each conveyor 41 to the crushing device 5 (in particular, the grinder 5A). The roasted coffee beans discharged from each of the metering/conveying devices 41 move inside the collecting/conveying part 42 by their own weight and flow down to the crushing device 5.

  A guide portion 42a is formed in the collective conveying portion 42 at a position corresponding to the bean insertion port 103. The guide portion 42a forms a passage for guiding the roasted coffee beans input from the bean input port 103 to the crushing device 5 (in particular, the grinder 5A). As a result, in addition to the roasted coffee beans stored in the canister 40, it is possible to manufacture a coffee beverage made from roasted coffee beans that is fed through the bean feeding port 103.

<3-2. Crusher>
The crushing device 5 will be described with reference to FIGS. 2 and 4. FIG. 4 is a partial perspective view of the separation device 6. The crushing device 5 includes grinders 5</b>A and 5</b>B and a separating device 6. The grinders 5A and 5B are a mechanism for grinding roasted coffee beans supplied from the storage device 4. The roasted coffee beans supplied from the storage device 4 are ground by the grinder 5A, then further ground by the grinder 5B to be powdered, and charged into the extraction container 9 from the discharge pipe 5C.

  The grinders 5A and 5B have different grain sizes for grinding beans. The grinder 5A is a grinder for coarse grinding, and the grinder 5B is a grinder for fine grinding. Each of the grinders 5A and 5B is an electric grinder, and includes a motor that is a drive source, a rotary blade that is driven by the motor, and the like. The size (grain size) of the roasted coffee beans to be ground can be changed by changing the number of rotations of the rotary blade.

  The separating device 6 is a mechanism for separating unnecessary substances from ground beans. The separating device 6 includes a passage portion 63a arranged between the grinder 5A and the grinder 5B. The passage portion 63a is a hollow body that forms a separation chamber through which ground beans that freely fall from the grinder 5A pass. The passage portion 63a is connected to a passage portion 63b extending in a direction (in the present embodiment, the left-right direction) intersecting with the passage direction of the ground beans (in the present embodiment, the vertical direction). The suction unit 60 is connected to the portion 63b. The suction unit 60 sucks the air in the passage 63a, so that a lightweight object such as chaff or fine powder is sucked. As a result, unnecessary substances can be separated from the ground beans.

  The suction unit 60 is a centrifugal separation mechanism. The suction unit 60 includes a blower unit 60A and a collection container 60B. In the case of this embodiment, the blower unit 60A is a fan motor, and exhausts the air in the collection container 60B upward.

  The collection container 60B includes an upper portion 61 and a lower portion 62 that are separably engaged. The lower portion 62 has a bottomed cylindrical shape with an open upper portion, and forms a space for accumulating unnecessary substances. The upper portion 61 constitutes a lid portion that is attached to the opening of the lower portion 62. The upper portion 61 includes a cylindrical outer peripheral wall 61a and an exhaust pipe 61b formed coaxially with the outer peripheral wall 61a. The blower unit 60A is fixed to the upper portion 61 above the exhaust pipe 61b so as to suck the air in the exhaust pipe 61b. A passage portion 63b is connected to the upper portion 61. The passage portion 63b opens to the side of the exhaust pipe 61b.

  By driving the blower unit 60A, airflows indicated by arrows d1 to d3 in FIG. 4 are generated. Due to this air flow, air containing unnecessary substances is sucked from the passage portion 63a into the collection container 60B through the passage portion 63b. Since the passage portion 63b is opened to the side of the exhaust pipe 61b, the air containing the unwanted matter swirls around the exhaust pipe 61b. The unwanted matter D in the air falls due to its weight and is collected in a part of the collection container 60B (deposited on the bottom surface of the lower portion 62). The air is exhausted upward through the inside of the exhaust pipe 61b.

  A plurality of fins 61d are integrally formed on the peripheral surface of the exhaust pipe 61b. The plurality of fins 61d are arranged in the circumferential direction of the exhaust pipe 61b. Each fin 61d is inclined with respect to the axial direction of the exhaust pipe 61b. By providing such fins 61, the swirling of the air containing the unwanted matter D around the exhaust pipe 61b is promoted.

  In the case of the present embodiment, the lower portion 62 is formed of a translucent material such as acrylic or glass, and the entire lower portion 62 constitutes a transparent container having a transmissive portion. The lower portion 62 is a portion covered by the cover portion 102 (FIG. 2). A manager or a consumer of the beverage can see the unwanted matter D accumulated in the lower portion 62 through the cover 102 and the peripheral wall of the lower portion 62. It may be easy for the manager to confirm the cleaning timing of the lower portion 62, and it is possible for the consumer of the beverage to visually recognize that the unwanted matter D has been removed, which increases the sense of expectation for the quality of the coffee beverage being manufactured. There are cases.

  As described above, in the present embodiment, the roasted coffee beans supplied from the storage device 4 are first coarsely ground by the grinder 5A, and when the coarse ground beans pass through the passage portion 63a, the separation device 6 removes unnecessary substances. Are separated. The coarsely ground beans from which unnecessary substances are separated are finely ground by the grinder 5B. The unnecessary substances separated by the separation device 6 are typically chaff and fine powder. These may deteriorate the taste of the coffee drink, and the quality of the coffee drink can be improved by removing chaff or the like from the ground beans.

  The crushing of roasted coffee beans may be performed with one grinder (single-step crushing). However, as in the present embodiment, by performing the two-stage pulverization by the two grinders 5A and 5B, the grain size of the ground beans can be easily made uniform, and the extraction degree of the coffee liquid can be made constant. When crushing beans, heat may be generated due to friction between the cutter and the beans. By the two-step crushing, heat generation due to friction during crushing can be suppressed and deterioration of ground beans (for example, deterioration of flavor) can be prevented.

  In addition, by passing through the steps of coarse grinding→separation of unnecessary substances→fine grinding, the mass difference between the unnecessary substances and the ground beans (required part) can be increased when separating unnecessary substances such as chaff. This can improve the separation efficiency of the unwanted matter and prevent ground beans (necessary portion) from being separated as unwanted matter. In addition, the heat treatment of the ground beans can be suppressed by air cooling by interposing the separation process of the unwanted matter using the suction of air between the coarse grinding and the fine grinding.

<4. Drive unit and extraction container>
<4-1. Overview>
The drive unit 8 and the extraction container 9 of the extraction device 3 will be described with reference to FIG. FIG. 5 is a perspective view of the drive unit 8 and the extraction container 9. Most of the drive unit 8 is surrounded by the main body 101.

  The drive unit 8 is supported by the frame F. The frame F includes upper and lower beam portions F1 and F2 and a column portion F3 that supports the beam portions F1 and F2. The drive unit 8 is roughly divided into three units, an upper unit 8A, a middle unit 8B, and a lower unit 8C. The upper unit 8A is supported by the beam portion F1. The middle unit 8B is supported by the beam portion F1 and the column portion F3 between the beam portion F1 and the beam portion F2. The lower unit 8C is supported by the beam portion F2.

  The extraction container 9 is a chamber including a container body 90 and a lid unit 91. The extraction container 9 may be called a chamber. The middle unit 8B includes an arm member 820 that detachably holds the container body 90. The arm member 820 includes a holding member 820a and a pair of left and right shaft members 820b. The holding member 820a is an elastic member such as a resin formed in a C-shaped clip shape, and holds the container body 90 by its elastic force. The holding member 82a holds the left and right side portions of the container body 90, and the front side of the container body 90 is exposed. This makes it easier to visually recognize the inside of the container body 90 in a front view.

  The container body 90 is attached to and detached from the holding member 820a by a manual operation, and the container body 90 is attached to the holding member 820a by pressing the container body 90 to the holding member 820a rearward and rearward. Further, the container body 90 can be separated from the holding member 820a by pulling out the container body 90 from the holding member 820a to the front side in the front-rear direction.

  The pair of shaft members 820b are rods extending in the front-rear direction, and are members that support the holding member 820a. Although the number of the shaft members 820b is two in the present embodiment, it may be one, or three or more. The holding member 820a is fixed to the front ends of the pair of shaft members 820b. By a mechanism described later, the pair of shaft members 82b are moved forward and backward, the holding member 820a is moved forward and backward, and the container main body 90 can be moved in parallel in the forward and backward directions. The middle unit 8B can also perform a turning operation to turn the extraction container 9 upside down, as described later.

<4-2. Extraction container>
The extraction container 9 will be described with reference to FIG. FIG. 6 is a view showing the closed state and the open state of the extraction container 9. As described above, the extraction container 9 is turned upside down by the middle unit 8B. The extraction container 9 in FIG. 6 shows a basic posture in which the lid unit 91 is located on the upper side. In the following description, the vertical positional relationship means the vertical positional relationship in the basic posture unless otherwise specified.

  The container body 90 is a bottomed container, and has a bottle shape having a neck portion 90b, a shoulder portion 90d, a body portion 90e, and a bottom portion 90f. A flange portion 90c that defines an opening 90a that communicates with the internal space of the container body 90 is formed at the end of the neck portion 90b (upper end portion of the container body 90).

  Both the neck portion 90b and the body portion 90e have a cylindrical shape. The shoulder portion 90d is a portion between the neck portion 90b and the body portion 90e, and has a tapered shape such that the cross-sectional area of the internal space thereof gradually decreases from the body portion 90e side toward the neck portion 90b side. ing.

  The lid unit 91 is a unit that opens and closes the opening 90a. The opening/closing operation (elevating operation) of the lid unit 91 is performed by the upper unit 8A.

  The container body 90 includes a body member 900 and a bottom member 901. The main body member 900 is a tubular member that forms the neck portion 90b, the shoulder portion 90d, and the body portion 90e and is open at the top and bottom. The bottom member 901 is a member that forms the bottom portion 90f, and is inserted and fixed to the lower portion of the main body member 900. A seal member 902 is interposed between the main body member 900 and the bottom member 901 to improve airtightness inside the container main body 90.

  In the case of the present embodiment, the main body member 900 is formed of a translucent material such as acrylic or glass, and the entire body constitutes a transparent container having a transmissive portion. An administrator or a consumer of beverage can see the extraction status of coffee beverage in the container body 90 through the cover 102 and the body member 900 of the container body 90. It may be easy for the manager to confirm the extraction operation, and for the beverage consumer, the extraction situation may be enjoyed.

  A convex portion 901c is provided at the center of the bottom member 901. The convex portion 901c is provided with a communication hole for communicating the inside of the container body 90 with the outside and a valve (valve 903 in FIG. 8) for opening and closing the communication hole. It is provided. The communication hole is used for discharging a waste liquid and a residue when cleaning the inside of the container body 90. A seal member 908 is provided on the convex portion 901c, and the seal member 908 is a member for maintaining an airtight space between the upper unit 8A or the lower unit 8C and the bottom member 901.

  The lid unit 91 includes a hat-shaped base member 911. The base member 911 has a convex portion 911d and a flange portion 911c that overlaps the flange portion 90c when closed. The convex portion 911d has the same structure as the convex portion 901c of the container body 90, and is provided with a communication hole for communicating the inside of the container body 90 to the outside and a valve (valve 913 in FIG. 8) for opening and closing the communication hole. Has been. The communication hole of the convex portion 911d is mainly used for injecting hot water into the container body 90 and delivering a coffee beverage. A seal member 918a is provided on the protrusion 911d. The seal member 918a is a member for keeping the space between the upper unit 8A or the lower unit 8C and the base member 911 airtight. The lid unit 91 is also provided with a seal member 919. The sealing member 919 improves the airtightness between the lid unit 91 and the container body 90 when the lid unit 91 is closed. The lid unit 91 holds a filter for filtration.

<4-3. Upper unit and lower unit>
The upper unit 8A and the lower unit 8C will be described with reference to FIGS. 7 is a front view showing a part of the configuration of the upper unit 8A and the lower unit 8C, and FIG. 8 is a vertical sectional view of FIG.

  The upper unit 8A includes an operation unit 81A. The operation unit 81A performs an opening/closing operation (elevation) of the lid unit 91 with respect to the container body 90 and an opening/closing operation of the valves of the convex portions 901c and 911d. The operation unit 81A includes a support member 800, a holding member 801, a lifting shaft 802, and a probe 803.

  The supporting member 800 is fixedly provided so that the relative position with respect to the frame F does not change, and accommodates the holding member 801. The support member 800 also includes a communication portion 800a that connects the pipe L3 and the inside of the support member 800. Hot water, water, and atmospheric pressure supplied from the pipe L3 are introduced into the support member 800 via the communication part 800a.

  The holding member 801 is a member that can detachably hold the lid unit 91. The holding member 801 has a cylindrical space into which the convex portion 911d of the lid unit 91 or the convex portion 901c of the bottom member 901 is inserted, and is provided with a mechanism for detachably holding these. This mechanism is, for example, a snap ring mechanism, which is engaged by a constant pressing force and released by a constant separation force. Hot water, water, and atmospheric pressure supplied from the pipe L3 can be supplied into the extraction container 9 through the communication portion 800a and the communication hole 801a of the holding member 801.

  The holding member 801 is also a movable member that is provided so as to be vertically slidable in the support member 800. The lifting shaft 802 is provided so that its axial direction is the vertical direction. The elevating shaft 802 penetrates the ceiling of the support member 800 in the vertical direction in an airtight manner, and is vertically movable with respect to the support member 800.

  The top of the holding member 801 is fixed to the lower end of the elevating shaft 802. The holding member 801 slides in the vertical direction as the lifting shaft 802 moves up and down, so that the holding member 801 can be attached to and detached from the protrusions 911d and 901c. Further, the lid unit 91 can be opened and closed with respect to the container body 90.

  A screw 802 a forming a lead screw mechanism is formed on the outer peripheral surface of the elevating shaft 802. A nut 804b is screwed onto the screw 802a. The upper unit 8A includes a motor 804a, and the nut 804b is rotated in place (without moving up and down) by the driving force of the motor 804a. The lifting shaft 802 moves up and down by the rotation of the nut 804b.

  The elevating shaft 802 is a tubular shaft having a through hole in its central axis, and a probe 803 is vertically slidably inserted into this through hole. The probe 803 vertically and airtightly penetrates the top of the holding member 801, and is provided to be vertically movable with respect to the support member 800 and the holding member 801.

  The probe 803 is an operator that opens and closes the valves 913 and 903 provided inside the convex portions 911d and 901c. The probe 803 lowers the valves 913 and 903 from the closed state to the open state, and the probe 803 raises the valve. The open state can be changed to the closed state (due to the action of a return spring (not shown)).

  A screw 803a forming a lead screw mechanism is formed on the outer peripheral surface of the probe 803. A nut 805b is screwed onto the screw 803a. The upper unit 8A includes a motor 805a, and the nut 805b is provided so as to rotate on the spot (without moving up and down) by the driving force of the motor 805a. The probe 803 moves up and down by the rotation of the nut 805b.

  The lower unit 8C includes an operation unit 81C. The operation unit 81C has a configuration in which the operation unit 81A is turned upside down, and opens and closes the valves 913 and 903 provided inside the convex portions 911d and 901c. The operation unit 81C is also configured to open and close the lid unit 91, but in the present embodiment, the operation unit 81C is not used to open and close the lid unit 91.

  Although the operation unit 81A is substantially the same as the description below, the operation unit 81C will be described. The operation unit 81C includes a support member 810, a holding member 811, a lifting shaft 812, and a probe 813.

  The supporting member 810 is fixedly provided so that the relative position with respect to the frame F does not change, and accommodates the holding member 811. The support member 810 also includes a communication portion 810a that allows the switching valve 10a of the switching unit 10 and the inside of the support member 810 to communicate with each other. Residues of coffee drink, water, and ground beans in the container body 90 are introduced into the switching valve 10a via the communication portion 810a.

  The holding member 811 has a cylindrical space into which the convex portion 911d of the lid unit 91 or the convex portion 901c of the bottom member 901 is inserted, and includes a mechanism for detachably holding these. This mechanism is, for example, a snap ring mechanism, which is engaged by a constant pressing force and released by a constant separation force. Residues of coffee drink, water, and ground beans in the container body 90 are introduced into the switching valve 10a via the communication portion 810a and the communication hole 811a of the holding member 811.

  The holding member 811 is also a movable member that is provided so as to be vertically slidable inside the support member 810. The lifting shaft 812 is provided so that its axial direction is the vertical direction. The elevating shaft 812 penetrates the bottom portion of the support member 800 in a vertical direction in an airtight manner, and is vertically movable with respect to the support member 810.

  The bottom of the holding member 811 is fixed to the lower end of the lifting shaft 812. The holding member 811 slides in the vertical direction as the lifting shaft 812 moves up and down, so that the holding member 811 can be attached to and separated from the protrusions 901c and 911d.

  A screw 812a forming a lead screw mechanism is formed on the outer peripheral surface of the elevating shaft 812. A nut 814b is screwed onto the screw 812a. The lower unit 8C includes a motor 814a, and the nut 814b is rotated in place (without moving up and down) by the driving force of the motor 814a. The lifting shaft 812 moves up and down by the rotation of the nut 814b.

  The elevating shaft 812 is a tubular shaft having a through hole in the center axis, and the probe 813 is vertically slidably inserted into the through hole. The probe 813 penetrates the bottom of the holding member 811 in an airtight manner in the vertical direction, and is provided so as to be vertically movable with respect to the support member 810 and the holding member 811.

  The probe 813 is an operator that opens and closes the valves 913 and 903 provided inside the convex portions 911d and 901c. The probe 813 moves the valves 913 and 903 from the closed state to the open state when the probe 813 moves upward, and the valve 813 moves when the probe 813 descends. The open state can be changed to the closed state (due to the action of a return spring (not shown)).

  A screw 813a forming a lead screw mechanism is formed on the outer peripheral surface of the probe 813. A nut 815b is screwed onto the screw 813a. The lower unit 8C includes a motor 815a, and the nut 815b is provided so as to be rotated in place (without moving up and down) by the driving force of the motor 815a. The rotation of the nut 815b moves the probe 813 up and down.

<4-4. Chubu Unit>
The middle unit 8B will be described with reference to FIGS. 5 and 9. FIG. 9 is a schematic diagram of the middle unit 8B. The middle unit 8B includes a support unit 81B that supports the extraction container 9. The support unit 81B includes a unit body 81B′ that supports the lock mechanism 821 in addition to the above-described arm member 820.

  The lock mechanism 821 is a mechanism that keeps the lid unit 91 closed with respect to the container body 90. The lock mechanism 821 includes a pair of gripping members 821a that vertically clamps the flange portion 911c of the lid unit 91 and the flange portion 90c of the container body 90. The pair of gripping members 821a have a C-shaped cross section in which the flange portion 911c and the flange portion 90c are sandwiched and fitted, and are opened and closed in the left-right direction by the driving force of the motor 822. When the pair of gripping members 821a is in the closed state, as shown by the solid line in the surrounding view of FIG. 9, each gripping member 821a fits the flange part 911c and the flange part 90c by vertically sandwiching them, The unit 91 is hermetically locked to the container body 90. In this locked state, the lid unit 91 does not move (the lock is not released) even if the holding unit 801 is lifted by the elevating shaft 802 to open the lid unit 91. That is, the locking force of the lock mechanism 821 is set to be stronger than the force of opening the lid unit 91 using the holding member 801. As a result, it is possible to prevent the lid unit 91 from being opened with respect to the container body 90 in the event of an abnormality.

  Further, when the pair of gripping members 821a is in the open state, as shown by the broken line in the surrounding view of FIG. 9, the gripping members 821a are separated from the flange portion 911c and the flange portion 90c, and the lid unit 91 and the container body 90 are separated. And are unlocked.

  When the holding member 801 holds the lid unit 91 and the holding member 801 is raised from the lowered position to the raised position, the lid unit 91 is removed from the container body 90 when the pair of gripping members 821a is in the open state. To be separated. Conversely, when the pair of gripping members 821a is in the closed state, the holding member 801 for the lid unit 91 is released, and only the holding member 801 moves up.

  The middle unit 8B also includes a mechanism that horizontally moves the arm member 820 in the front-rear direction using the motor 823 as a drive source. As a result, the container body 90 supported by the arm member 820 can be moved between the rear extraction position (state ST1) and the front bean insertion position (state ST2). The bean charging position is a position at which ground beans are charged in the container body 90, and ground beans ground by the grinder 5B are charged from the discharge pipe 5C into the opening 90a of the container body 90 from which the lid unit 91 is separated. In other words, the position of the discharge pipe 5C is above the container body 90 located at the bean charging position.

  The extraction position is a position where the container body 90 can be operated by the operation unit 81A and the operation unit 81C, is a position coaxial with the probes 803 and 813, and is a position for extracting the coffee liquid. The extraction position is a position on the back side of the bean charging position. 5, 7, and 8 all show the case where the container body 90 is in the extraction position. As described above, the position of the container body 90 is changed between the addition of ground beans, the extraction of coffee liquid, and the supply of water, so that the steam generated during coffee liquid extraction is the discharge pipe that is the ground bean supply unit. It can be prevented from adhering to 5C.

  The middle unit 8B also includes a mechanism that rotates the support unit 81B around a shaft 825 in the front-rear direction using a motor 824 as a drive source. As a result, the posture of the container body 90 (extraction container 9) can be changed from the upright posture (state ST1) in which the neck portion 90b is upward to the inverted posture (state ST3) in which the neck portion 90b is downward. While the extraction container 9 is rotating, the lock mechanism 821 keeps the lid unit 91 locked to the container body 90. The extraction container 9 is turned upside down in the upright posture and the inverted posture. In the upright posture, the convex portion 911d is located at the position of the convex portion 901c in the upright posture. Further, the convex portion 901c is located in the inverted posture at the position of the convex portion 911d in the upright posture. Therefore, in the inverted posture, the operation unit 81A can perform the opening/closing operation on the valve 903, and the operation unit 81C can perform the opening/closing operation on the valve 913.

<5. Controller>
The control device 11 of the beverage manufacturing device 1 will be described with reference to FIG. 10. FIG. 10 is a block diagram of the control device 11.

  The control device 11 controls the entire beverage manufacturing device 1. The control device 11 includes a processing unit 11a, a storage unit 11b, and an I/F (interface) unit 11c. The processing unit 11a is a processor such as a CPU. The storage unit 11b is, for example, a RAM or a ROM. The I/F unit 11c includes an input/output interface that inputs and outputs signals between the external device and the processing unit 11a. The I/F unit 11c also includes a communication interface capable of data communication with the server 16 and the mobile terminal 17 via the communication network 15 such as the Internet. The server 16 can communicate with a mobile terminal 17 such as a smartphone via the communication network 15, and can receive information such as a beverage manufacturing reservation and impressions from the mobile terminal 17 of a beverage consumer, for example. .. The beverage production apparatus 1, the server 16, and the mobile terminal 17 are included to configure a system for extracting the coffee beverage liquid from the extraction target.

  A beverage consumer (user) can set a profile for beverage production from the mobile terminal 17. FIG. 18 is a diagram showing an example of a profile setting screen displayed on the mobile terminal 17. The user can adjust the amount of hot water to be extracted or the like on the mobile terminal 17 by the screen 1801 of FIG. The screen 1801 of FIG. 18 is basically the same as the setting items displayed on the information display device 12, and the user can set the extracted hot water amount on the mobile terminal 17 to a desired value, for example, before visiting the cafe. Can be adjusted to.

  The display area 1802 allows the user to arbitrarily adjust and set the amount of coffee beans. Further, the display area 1803 allows the user to arbitrarily adjust and set the grinding grain size. Further, the display area 1804 allows the user to arbitrarily adjust and set the amount of boiling water. Further, the display area 1805 allows the user to arbitrarily adjust and set the steaming time. Further, the display area 1806 allows the user to arbitrarily adjust and set the amount of hot water to be extracted. Further, the display area 1807 allows the user to arbitrarily adjust and set the extraction pressure. In addition, the display area 1808 allows the user to arbitrarily adjust and set the extraction time.

  The button 1809 is a button for confirming the contents of the display areas 1802-1808. In the case of FIG. 18, when the button 1809 is pressed, the contents of the display areas 1802-1808 are saved and the two-dimensional code is displayed. The user can tell the information display device 12 the contents of the display areas 1802-1808 by visiting the cafe and holding the two-dimensional code displayed on the mobile terminal 17 over the imaging unit of the information display device 12, for example. .. The button 1809 does not have to be the button for displaying the two-dimensional code. For example, a button for confirming and saving the contents of the display areas 1802-1808 may be used, and the contents of the display areas 1802-1808 are transmitted to the information display device 12 via the short-range wireless communication I/F. You can

  By allowing the mobile terminal 17 to adjust the parameters for extracting the coffee beverage as shown in FIG. 18, the user may be able to easily enjoy the feeling of the coffee extracting operation like a barista. In the present embodiment, the parameter for extracting a coffee beverage as shown in FIG. 18 is referred to as an extraction profile or recipe.

  The processing unit 11a executes the program stored in the storage unit 11b, and controls the actuator group 14 based on an instruction from the information display device 12 or a detection result of the sensor group 13 or an instruction from the server 16. The sensor group 13 is various sensors (for example, hot water temperature sensor, mechanism operating position detection sensor, pressure sensor, etc.) provided in the beverage manufacturing apparatus 1. The actuator group 14 is various actuators (for example, a motor, a solenoid valve, a heater, etc.) provided in the beverage manufacturing apparatus 1.

  Next, the liquid feed rate adjusting device for the water tank 72 will be described. In the present embodiment, the supply (pouring) of hot water from the water tank 72 to the extraction container 9 is performed by the liquid feed rate adjusting device in which the water tank 72 is configured as shown in FIG. FIG. 12 is a schematic view of the liquid delivery amount adjusting device 720, and FIG. 13 is a cross-sectional view taken along the line IV-IV of FIG. Like the water tank 72, the liquid delivery amount adjusting device 720 is a device that stores hot water (water) that composes a coffee beverage and that has a function of sending a fixed amount of hot water. As a result, the hot water required for one cup of coffee beverage is sequentially delivered. Moreover, the amount of hot water to be delivered can be changed. In the following description, components having the same functions as the components related to the water tank 72 are designated by the same reference numerals.

  The liquid delivery amount adjusting device 720 has a tank 720a for accumulating hot water. The outer wall of the tank 720a includes a peripheral wall 721, an upper wall 723 joined to the upper end of the peripheral wall 721, and a bottom wall 724 joined to the lower end of the peripheral wall 721. As shown in the cross-sectional view of FIG. Has a cylindrical shape as a whole. A partition wall 722 is provided in the tank 720a, and the internal space thereof is partitioned by the partition wall 722 into an outer cylindrical space 725 and an inner cylindrical space 726A. In the case of the present embodiment, the partition wall 722 is a cylindrical wall body arranged concentrically with the peripheral wall 721, but even if the partition wall 722 is eccentric with respect to the peripheral wall 721 as shown in the configuration example EX31 of FIG. Good.

  The space 725 constitutes a storage unit that stores hot water. The space 725 is also referred to as a storage section 725. A movable member 727c is disposed above the space 726A, and the space 726 below the movable member 727c constitutes a storage unit that stores hot water. The space 726 is also called a storage section 726. By partitioning the storage section 725 and the storage section 726 with the partition wall 722 that is a common wall body, the tank 720a can be downsized as compared with the case where the storage wall is partitioned by separate wall bodies.

  The reservoir 725 is provided with a heater 72a that heats the water in the reservoir 725 and a temperature sensor 72b that measures the temperature of the water. The heater 72a maintains the temperature of the accumulated hot water at a predetermined temperature (120 degrees Celsius in this embodiment) based on the detection result of the temperature sensor 72b. The heater 72a is turned on when the temperature of the hot water is 118 degrees Celsius, and turned off when the temperature of the hot water is 120 degrees Celsius, for example.

  A pipe for supplying the atmospheric pressure in the reserve tank 71 (see FIG. 3) is connected to a portion of the upper wall 723 that defines the storage portion 725, and a solenoid valve 72f is provided here. The liquid delivery amount adjusting device 720 includes a sensor (not shown; for example, a sensor corresponding to the pressure sensor 72g in FIG. 3) that detects the atmospheric pressure in the storage portion 725, and the solenoid valve 72f is a pressure regulating valve 72e (see FIG. 3). Switching between supply and cutoff of the regulated atmospheric pressure to the storage unit 725. The solenoid valve 72f is controlled to be opened and closed so that the atmospheric pressure in the storage section 725 is maintained at a predetermined atmospheric pressure, for example, 3 atmospheric pressure, except when water is supplied to the storage section 725.

  A pipe that connects the reservoir 725 to the atmosphere is connected to a portion of the upper wall 723 that defines the reservoir 725, and a solenoid valve 72h is provided here. When water is supplied to the reservoir 725, the solenoid valve 72h reduces the atmospheric pressure of the reservoir 725 to less than 2.5 atm so that tap water is smoothly supplied to the reservoir 725 by the water pressure of the water. The solenoid valve 72h switches whether to open the inside of the water tank 72 to the atmosphere, and opens the inside of the storage portion 725 to the atmosphere when the pressure is reduced. Further, the electromagnetic valve 72h releases the storage portion 725 to the atmosphere and maintains the storage portion 725 at 3 atmospheric pressure when the atmospheric pressure inside the storage portion 725 exceeds, for example, 3 atmospheric pressure, except when the water is supplied to the storage portion 725. ..

  A pipe L2 for supplying water to the storage portion 725 is connected to a portion of the bottom wall 724 that defines the storage portion 725, and an electromagnetic valve 72d is provided here. The solenoid valve 72d is controlled to open and close based on the detection result of a water level sensor 72c, which will be described later, to control the water level of the hot water in the storage section 725.

  A pipe L2' for discharging hot water in the storage portion 725 is connected to a portion of the bottom wall 724 that defines the storage portion 725, and an electromagnetic valve 72d' is provided therein. The electromagnetic valve 72d' is opened when the hot water in the storage portion 725 is discarded, and the hot water in the storage portion 725 is discharged to the pipe L2'.

  The storage portion 726 is a space whose volume can be changed by moving the movable member 727c. Hot water is supplied to the reservoir 726 from the reservoir 725 via the pipe 728a, the solenoid valve 728, and the pipe 728b. The pipe 728a connects the portion of the bottom wall 724 that defines the storage portion 725 and the solenoid valve 728. The pipe 728b connects the portion of the bottom wall 724 that defines the storage portion 726 and the solenoid valve 728.

  In the case of the present embodiment, the solenoid valve 728 is a three-way valve, and can switch communication and cutoff between the pipe 728b and the pipe 728a and communication and cutoff between the pipe 728b and the pipe 728c. Further, the solenoid valve 728 can shut off any of the pipes. The pipe 728c is a pipe for delivering the hot water in the storage unit 726 to the extraction container 9.

  By switching between communication and cutoff between the pipe 728b and the pipe 728a, communication and cutoff between the storage portion 725 and the storage portion 726 can be switched. By switching connection and disconnection between the pipe 728b and the pipe 728c, it is possible to switch between delivery and storage of hot water in the storage section 726.

  When the pipe 728b and the pipe 728a communicate with each other, the solenoid valve 728 shuts off the pipe 728b and the pipe 728c. Conversely, when the pipe 728b and the pipe 728c are in communication with each other, the pipe 728b and the pipe 728a are cut off. The arrow shown by the solenoid valve 728 in the drawing indicates the operating state of the solenoid valve 728. In the example of FIG. 12, the pipe 728b and the pipe 728c are communicated with each other, and the pipe 728b and the pipe 728a are cut off. It shows the state.

  In the present embodiment, the solenoid valve 728 is a three-way valve, and one solenoid valve 728 is used to switch between them. However, a configuration is also adopted in which the pipe 728b is divided into two, and a valve that switches communication and cutoff between the one pipe 728b and the pipe 728a and a valve that switches communication and cutoff between the other pipe 728b and the pipe 728c are provided. It is possible.

  The liquid delivery volume adjustment device 720 includes a drive unit 727. The drive unit 727 is controlled according to the amount of hot water delivered from the storage section 726, and changes the volume of the storage section 726. The amount of hot water required for one cup varies depending on the size of the coffee cup. The drive unit 727 adjusts the volume of the storage section 726 so that an appropriate amount of hot water is delivered from the storage section 726 according to the size of the coffee cup or the like.

  The drive unit 727 of the present embodiment is a mechanism that changes the volume of the storage portion 726 by moving the movable member 727c up and down. The movable member 727c is a piston-shaped member that is inserted into the space 726A and configured to slide in the vertical direction, and the bottom surface 727d forms the upper wall of the storage section 726. As the bottom surface 727d moves up and down, the volume of the storage portion 726 changes.

  The volume of the storage part 726 is not changed by moving the position of the upper wall body as in the present embodiment, but is changed by moving the positions of the lower and side wall bodies. A configuration can also be adopted.

  The movable member 727c includes a seal member (not shown) that forms a seal with the inner surface of the partition wall 722, and slides liquid-tightly on the inner surface of the partition wall 722. However, a groove 727e extending in the up-down direction is formed on the peripheral surface of the movable member 727c, and the groove 727e has a gap with the inner surface of the partition wall 722.

  The groove 727e is formed so as to communicate with the opening 722a penetrating the partition wall 722 in the thickness direction. The opening 722a is an air communication portion that is formed at a position above the highest water level of hot water in the storage portion 725 (the position of the sensor 731b described below) and that connects the storage portion 725 and the space 726A. Air communicates with the storage section 725 and the storage section 726 through the opening 722a and the groove 727e, and the atmospheric pressures in these spaces are the same. In addition, when the storage portions 725 and 726 are always kept at atmospheric pressure, a passage communicating with the atmosphere may be provided separately.

  The drive unit 727 includes a motor 727a supported by the upper wall 723 as a drive source, and a screw shaft 727b as a moving mechanism that moves the movable member 727c. The screw shaft 727b extends in the vertical direction and rotates by the driving force of the motor 727a. The movable member 727c has a screw hole 727f opened on the upper surface thereof, and the screw shaft 727b is engaged with the screw hole 727f. The movable member 727c is provided with a rotation stopper (not shown), and moves in the vertical direction by rotation of the screw shaft 727b. The whirl-stop may be, for example, a concave portion and a convex portion extending in the up-down direction provided on the inner surface of the partition wall 722 and the peripheral surface of the movable member 727c.

  In the present embodiment, as the moving mechanism for moving the movable member 727c, the screw mechanism including the screw shaft 727b and the screw hole 727f is used, but the present invention is not limited to this, and another mechanism such as a rack-pinion mechanism can be adopted. is there.

  The water level sensor 72c is a measurement unit that measures the water level of the hot water in the storage section 725. The water level sensor 72c includes a hollow cylindrical storage portion 729 extending vertically, a float 730 provided in the storage portion 729, and a lower sensor 731a and an upper sensor 731b that detect the float 730.

  The storage section 729 communicates with the storage section 725 at a communication section 729a at a position lower than the sensor 731a, and communicates with the storage section 725 at a communication section 729b at a position higher than the sensor 731b. Hot water in the storage section 725 flows into the storage section 729 via the communication section 729a. The communication part 729b is an air communication part that connects the storage part 725 and the storage part 729, and air communicates between the storage part 725 and the storage part 729 via the communication part 729b. Therefore, the water level of the hot water in the reservoir 729 becomes equal to the water level of the hot water in the reservoir 725.

  In the case of this embodiment, the storage section 729 is made of a transparent member such as glass or acrylic. Accordingly, the water level of the hot water in the storage section 729 can be visually recognized from the outside, and as a result, the user can check the water level of the hot water in the storage section 725. Of course, it is also possible to adopt a configuration in which a transparent part is provided on a part of the peripheral wall (721) of the storage part 725 to make the water level visible.

  The float 730 may be of any type as long as it floats in hot water in the storage section 729.

  The sensors 731a and 731b are, for example, optical sensors (photo interrupters), and detect the float 730 from the outside of the storage unit 729. When the float 730 is detected by the sensor 731a, the electromagnetic valve 72d is opened and water is supplied to the reservoir 725. That is, the sensor 731a monitors the lower limit of the water level of the hot water in the storage section 725. The lower limit of the water level is set to a position higher than that of the heater 72a, so that it is possible to prevent the heater 72a from heating the empty space.

  When the float 730 is detected by the sensor 731b, the electromagnetic valve 72d is closed to stop the supply of water to the reservoir 725. That is, the sensor 731b monitors the upper limit of the water level of the hot water in the storage section 725.

  It is also possible to construct a structure equivalent to the water level sensor 72c inside the storage part 725. However, by constructing the water level sensor 72c outside the storage section 725 as in the present embodiment, it becomes easier to confirm the water level in the storage section 725 from the outside.

<6. Operation control example>
An example of the control processing of the beverage manufacturing apparatus 1 executed by the processing unit 11a will be described with reference to FIGS. 11A(A) and (B), FIG. 12, FIG. 14, FIG. 15, FIG. 16, and FIG. FIG. 11(A) shows an example of control relating to one coffee beverage manufacturing operation. The state of the beverage production device 1 before the production instruction is called a standby state. The state of each mechanism in the standby state is as follows. 14 and 15, the solenoid valve 728 is shown as a solenoid valve 728-1 and a solenoid valve 728-2 for the purpose of explaining the operation. The state in which the pipe 728b and the pipe 728a communicate with each other in FIG. 12 corresponds to the state in which the solenoid valve 728-1 is opened and the solenoid valve 728-2 is closed in FIGS. 14 and 15. On the other hand, the state in which the pipe 728b and the pipe 728c communicate with each other in FIG. 12 corresponds to the state in which the solenoid valve 728-1 is closed and the solenoid valve 728-2 is opened in FIGS. 14 and 15.

  The extraction device 3 is in the state shown in FIG. The extraction container 9 is in an upright posture and is located at the extraction position. The lock mechanism 821 is in the closed state, and the lid unit 91 closes the opening 90a of the container body 90. The holding member 801 is in the lowered position and is attached to the convex portion 911d. The holding member 811 is in the raised position and is attached to the convex portion 901c. Valves 903 and 913 are closed. The switching valve 10a connects the communication portion 810a of the operation unit 8C to the waste tank T.

  In the standby state, if there is a coffee beverage manufacturing instruction, the process of FIG. 11(A) is executed. In S1, preheat treatment is performed. This process is a process of pouring hot water into the container body 90 to heat the container body 90 in advance. First, the valves 903 and 913 are opened. As a result, the pipe L3, the extraction container 9, and the waste tank T are in communication with each other.

  At this time, the movable member 727c is located at a predetermined initial position, as shown in FIG. Then, as shown in FIG. 14B, the movable member 727c is moved upward so that the amount of hot water for one cup can be stored in the storage portion 726. Then, the electromagnetic valve 728 is switched so that the pipe 728b and the pipe 728a are communicated with each other, and a small amount of hot water (amount smaller than the amount of hot water for steaming) predetermined for preheating is stored in the storage portion 726. Then, as shown in FIG. 14C, the electromagnetic valve 728 is switched so that the pipe 728b and the pipe 728c are communicated with each other, and a small amount of hot water for preheating is injected into the extraction container 9.

  The water tank 72 is supplied with the atmospheric pressure in the reserve tank 71 via the pressure regulating valve 72e and the electromagnetic valve 72f, and the pressure regulating valve 72e reduces the atmospheric pressure supplied from the reserve tank 71 to a predetermined atmospheric pressure. In the case of this embodiment, the pressure is reduced to 3 atm (2 atm in gauge pressure). In the process of reducing the pressure, as shown in FIG. 14D, boiling of water in the water tank 72 is promoted, and steam is supplied to the extraction container 9 through the opening 722a, the storage section 726, and the pipe 728c. .. At this time, the solenoid valve 728 is controlled so that the pipe 728b and the pipe 728c communicate with each other for a predetermined period. By sending the steam from the tank 720a to the extraction container 9, the pressure in the tank 720a is lowered, the hot water in the tank 720a is agitated, and the upper hot water and the lower hot water are mixed. As a result of the averaging, when the target temperature is not reached (for example, when the temperature is lower than 118 degrees Celsius), the heater 72a is turned on to boil the hot water in the tank 720a. Even after the pipe 728b and the pipe 728c are cut off, the boiling in the water tank 72 continues until the pressure is reduced to 3 atm as shown in FIGS. 14(e) and 14(f).

  Then, as shown in FIG. 14G, the electromagnetic valve 728 is switched so that the pipe 728b and the pipe 728a are communicated with each other, and the amount of steam (for example, 30 cc) of hot water is stored in the storage portion 726. Then, as shown in FIG. 14(h), the pipe 728b and the pipe 728a are cut off. By the above process, the inside of the extraction container 9 is preheated, and it is possible to reduce the cooling of the hot water in the subsequent production of the coffee beverage.

  In step S2, grind processing is performed. Here, the roasted coffee beans are crushed and the ground beans are put into the container body 90. First, the lock mechanism 821 is opened and the holding member 801 is raised to the raised position. The lid unit 91 is held by the holding member 801, and rises together with the holding member 801. As a result, the lid unit 91 is separated from the container body 90. The holding member 811 descends to the descending position. The container body 90 is moved to the bean charging position. Then, the storage device 4 and the crushing device 5 are operated. As a result, one cup of roasted coffee beans is supplied from the storage device 4 to the grinder 5A. The roasted coffee beans are ground in two stages by the grinders 5A and 5B, and unnecessary substances are separated by the separating device 6. Ground beans are put into the container body 90.

  The container body 90 is returned to the extraction position. The holding member 801 is lowered to the lowered position, and the lid unit 91 is attached to the container body 90. The lock mechanism 821 is closed and the lid unit 91 is airtightly locked to the container body 90. The holding member 811 rises to the raised position. Of the valves 903 and 913, the valve 903 is opened and the valve 913 is closed.

  In S3, extraction processing is performed. Here, the coffee liquid is extracted from the ground beans in the container body 90. FIG. 11B is a flowchart of the extraction process of S3. In the present embodiment, the atmospheric pressure in the extraction container 9 is changed in each hot water injection operation in the extraction process of S3. FIG. 16 is a diagram showing changes in the atmospheric pressure in the extraction container 9 in the extraction process of S3. The extraction process of S3 will be described below with reference to FIGS.

  In S11, since the ground beans in the extraction container 9 are steamed, a smaller amount of hot water (for example, 30 cc) than one cup of hot water is injected into the extraction container 9. Here, as shown in FIG. 15( i ), the electromagnetic valve 728 is switched so that the pipe 728 b and the pipe 728 c are communicated with each other, and hot water for steaming is injected into the extraction container 9. At that time, the electromagnetic valve 73b is opened for a predetermined time and then closed. Thereby, as shown in a period 1601 of FIG. 16, the air in the extraction container 9 is pressurized from, for example, 1 atm to 1.7 atm. Thereafter, as shown in FIG. 15(j), the pipe 728b and the pipe 728c are shut off, and as shown in a period 1602 in FIG. By this process, ground beans can be steamed. By steaming the ground beans, carbon dioxide gas contained in the ground beans can be released and the subsequent extraction effect can be enhanced. In addition, in FIG. 16, the solid line indicates changes in the atmospheric pressure in the extraction container 9, and the broken line indicates changes in the amount of hot water in the extraction container 9. In the period 1601, 30 cc of hot water is supplied along with the change in the atmospheric pressure. During the period 1602, the hot water remains at 30 cc.

  In S12, as shown in FIG. 15(k), the solenoid valve 728 is switched so that the pipe 728b and the pipe 728c communicate with each other, and a predetermined amount of hot water (for example, 40 cc) out of one cup is poured into the extraction container 9. Here, the electromagnetic valve 73b is opened for a predetermined time and then closed. Thereby, as shown in the period 1603 of FIG. 16, the air in the extraction container 9 is pressurized from, for example, 1.7 atm to 3 atm.

  By the process of S12, the inside of the extraction container 9 can be brought into a state of a temperature exceeding 100 degrees Celsius (for example, about 110 degrees Celsius). In S13, with the pipe 728b and the pipe 728c communicating with each other, the remaining hot water (for example, 30 cc) of one cup is poured into the extraction container 9. Furthermore, in S13, the inside of the extraction container 9 is pressurized. Here, the electromagnetic valve 73b is opened and closed for a predetermined time (for example, 1000 ms), and as shown in a period 1604 in FIG. 16, an atmospheric pressure (for example, about 5 atm (about 4 atm in gauge pressure) in which the hot water does not boil in the extraction container 9 )) Pressurize. The total pouring amount of the steaming pouring amount in the period 1601, the pouring amount in the period 1603, and the pouring amount in the period 1604 in FIG. 16 can be adjusted to be a predetermined amount (for example, 100 cc). Then, the pipe 728b and the pipe 728c are shut off, and the valve 903 is closed. FIG. 15(l) corresponds to this time point, and while the state of FIG. 15(l) is maintained, the following processes of S14 and S15 are performed.

  Then, in the process of S14, immersion extraction (S141) and chamber decompression (S142) are performed. When the inside of the extraction container 9 is pressurized to, for example, 5 atm by S13, this state is maintained for a predetermined time (for example, 1000 ms) as shown in a period 1605 in FIG. 16, and then from 5 atm to 1.5 atm, for example. Sudden decompression. Here, the atmospheric pressure in the extraction container 9 is switched to the atmospheric pressure at which the hot water boils. Specifically, the inside of the extraction container 9 is opened to the atmosphere by opening the valve 913 and opening and closing the electromagnetic valve 73c for a predetermined time (for example, 1000 ms). Then, the valve 913 is closed again.

  The inside of the extraction container 9 is rapidly depressurized to a pressure lower than the boiling point pressure, and the hot water in the extraction container 9 boils at a dash. Hot water and ground beans in the extraction container 9 explosively scatter in the extraction container 9. Thereby, the hot water can be boiled uniformly. Further, it is possible to promote the destruction of the cell wall of ground beans and further accelerate the subsequent extraction of coffee liquor. Moreover, since the ground beans and hot water can be stirred by this boiling, extraction of the coffee liquid can be promoted. Thus, in this embodiment, the extraction efficiency of coffee liquid can be improved. After the sudden pressure reduction, this state is maintained for a predetermined time (for example, 3000 ms) as shown in a period 1606 of FIG. After that, the electromagnetic valve 73c is opened for a predetermined time and then closed to further reduce the pressure from 1.5 atm to 1 atm. Then, as shown by a period 1607 in FIG. 16, this state is maintained for a predetermined time (for example, 1000 ms).

  In the present embodiment, by the processing of S14 as described above, the extraction of the coffee liquid by the immersion method under high temperature and high pressure is performed. The following effects can be expected in the immersion type extraction under high temperature and high pressure. First, by applying a high pressure, hot water can easily penetrate into the ground beans and the extraction of coffee liquid can be promoted. Second, high temperature accelerates extraction of coffee liquor. Third, the high temperature lowers the viscosity of the oil contained in ground beans and accelerates the oil extraction. This makes it possible to produce a coffee drink with a high aroma. In addition, in S14, for example, the pressure reduction is performed in two steps from 5 atm to 1.5 atm, and 1.5 atm to 1 atm. In some cases, it is possible to suppress the pressure fluctuation inside the container 9, and it is not necessary to provide the extraction container 9 with a structure for alleviating the pressure fluctuation, and as a result, it is possible to prevent the structure from becoming large.

  The temperature of hot water (high-temperature water) may be higher than 100 degrees Celsius, but higher temperature is more advantageous in extracting coffee liquid. On the other hand, increasing the temperature of the hot water generally increases the cost. Therefore, the temperature of the hot water may be, for example, 105 degrees Celsius or higher, 110 degrees Celsius or higher, or 115 degrees Celsius or higher, and may be 130 degrees Celsius or lower, or 120 degrees Celsius or lower, for example. The pressure may be any pressure that does not boil the hot water. After maintaining at 1 atm for 1 second in S14, the solenoid valve 73b is opened for a predetermined time and then closed to pressurize to a predetermined atmospheric pressure (for example, 1.5 atm). Further, in the period 1607, due to such pressurization, an extremely small amount of liquid (about 5 cc) in the pipe connected to the inside of the extraction container 9 may be pushed into the extraction container 9.

  In S15, the extraction container 9 is inverted from the upright posture to the inverted posture. Here, the holding member 801 is moved to the raised position and the holding member 811 is moved to the lowered position. Then, the support unit 81B is rotated. Then, the holding member 801 is returned to the lowered position, and the holding member 811 is returned to the raised position. The neck portion 90b and the lid unit 91 of the extraction container 9 in the inverted posture are located on the lower side. The period of S15 corresponds to the period 1608 of FIG. After reversing the extraction container 9, the electromagnetic valve 73c is opened for a predetermined time and then closed to reduce the pressure to 1 atmosphere. Then, as shown in a period 1609 of FIG. 16, this state is maintained for a predetermined time (for example, 2000 ms). In addition, in the present embodiment, pouring into the extraction container 9 is performed after the extraction container 9 is inverted. Specifically, as shown in FIG. 15( m ), the electromagnetic valve 728 is switched so that the pipe 728 b and the pipe 728 c communicate with each other, and a predetermined amount of hot water (for example, 80 cc) is poured into the extraction container 9.

  In S16, transparent coffee liquid extraction is performed, and the coffee beverage is delivered to the cup C. Here, the switching valve 10a is switched so that the pouring portion 10c communicates with the passage portion 810a of the operation unit 81C. Further, the valves 903 and 913 are both opened. In the present embodiment, in the coffee liquid extraction of S16, the coffee liquid is delivered by steam and the coffee liquid is delivered by air from the reserve tank 71. As the delivery of the coffee liquid by the steam, first, after pouring the extraction container 9 into the extraction container 9 after reversing it (FIG. 15(m)), water is supplied to the water tank 72 (FIG. 15(n)). After waiting for a predetermined period of time 1609, the inside of the water tank 72 is pressurized from 1 atm to 2.0 atm via the pressure regulating valve 72e and the electromagnetic valve 72f. Here, since the pipe 728b and the pipe 728c are in communication with each other, as the steam in the water tank 72 is supplied to the extraction container 9, the atmospheric pressure in the water tank 72 is lowered and boiling is promoted. When the vapor is sent from the tank 720a to the extraction container 9, the pressure inside the tank 720a decreases, and when the target temperature is not reached (for example, below 118 degrees Celsius), the heater 72a is turned on and the tank 720a is turned on. You will be boiling the hot water. The pressure of the steam at this time brings the atmospheric pressure in the extraction container 9 to about 1.6 atmospheric pressure, and the coffee beverage in which the coffee liquid is dissolved in the hot water passes through the filter provided in the lid unit 91 and is delivered to the cup C. This period corresponds to the period 1610 in FIG. The filter controls the leakage of ground bean residues. With the above-described configuration, the inside of the water tank 72 may be stirred by being boiled to have a uniform temperature distribution, and the coffee liquid may be extracted at a high temperature in some cases. Then, as shown in FIG. 15(o), the pipe 728b and the pipe 728c are cut off.

  Next, in order to deliver the coffee liquid by supplying the pressure from the reserve tank 71, the electromagnetic valve 73b is opened for a predetermined time and then closed, so that the inside of the extraction container 9 is heated to a predetermined atmospheric pressure (for example, 2.0 atmospheric pressure). Press. As a result, the coffee beverage in which the coffee liquid is dissolved in the hot water is transmitted to the cup C through the filter provided in the lid unit 91. This period corresponds to the period 1611 in FIG. The filter controls the leakage of ground bean residues. With the above configuration, the coffee beverage is delivered by the plurality of pressure sources. Further, since the coffee beverage is delivered by the highest pressure among the plurality of pressure sources at the end, it may be possible to reduce the residue of the coffee beverage in the delivery structure portion.

  In the present embodiment, the extraction efficiency of coffee liquid can be improved by using the immersion extraction in S14 and the permeation extraction in S16 together. When the extraction container 9 is in the upright posture, ground beans are accumulated from the body portion 90e to the bottom portion 90f. On the other hand, when the extraction container 9 is in the inverted posture, ground beans are accumulated from the shoulder portion 90d to the neck portion 90b. The cross-sectional area of the body portion 90e is larger than the cross-sectional area of the neck portion 90b, and the ground bean pile thickness in the inverted posture is thicker than that in the upright posture. That is, the ground beans are relatively thin and widely deposited when the extraction container 9 is in the upright posture, and relatively thick and narrowly deposited when the extraction container 9 is in the upright posture.

  In the case of the present embodiment, since the extraction container 9 in S14 is performed with the extraction container 9 in the upright posture, the hot water and the ground beans can be brought into contact with each other over a wide range, and the extraction efficiency of the coffee liquid can be improved. However, in this case, the hot water tends to partially contact the ground beans. On the other hand, since the transparent extraction in S16 is performed with the extraction container 9 in the inverted posture, the hot water passes through the accumulated ground beans while contacting more ground beans. The hot water comes into contact with the ground beans evenly, and the extraction efficiency of the coffee liquid can be further improved.

  Returning to FIG. 11A, after the extraction process of S3, the discharge process of S4 is performed. Here, a process related to cleaning the inside of the extraction container 9 is performed. Cleaning of the extraction container 9 is performed by returning the extraction container 9 from the inverted posture to the upright posture and supplying water (purified water) to the extraction container 9. Then, the inside of the extraction container 9 is pressurized, and the water in the extraction container 9 is discharged to the waste tank T together with the residue of ground beans.

  As described above, one coffee beverage manufacturing process is completed. After that, the same processing is repeated for each manufacturing instruction. The time required to manufacture one coffee beverage is, for example, about 60 to 90 seconds.

  FIG. 17 is a diagram showing an example in which the information of FIG. 16 is displayed on the information display device 12. FIG. 17 shows an example in which the results of actual measurement of the pressure and the amount of hot water in the extraction container 9 during extraction are plotted and displayed in real time as the extraction progresses. In FIG. 17, a thin solid line shows a target change in pressure in the extraction container 9 when extracting a cup of coffee (pressure change graph), and a thin broken line is a target when extracting a cup of coffee. The change of the amount of hot water in the extraction container 9 is shown (liquid amount change graph). Also, the thick solid line shows a state in which the pressure change in the extraction container 9 that changes in real time during actual coffee extraction is plotted in real time, and the thick broken line shows the extraction container that changes in real time during actual coffee extraction. It shows that the change in the amount of hot water in 9 is plotted in real time. The pressure or the amount of hot water in the extraction container 9 may be obtained by providing a pressure sensor or a water level sensor in the extraction container 9 or based on the measurement values obtained by the pressure sensor 72g and the water level sensor 72c. It may be obtained by acquiring.

  In FIG. 17, plots are made up to the middle of the periods 1601 to 1605 and 1606, the current extraction process proceeds to the middle of the period 1606, the pressure in the extraction container 9 is 1.2 atm, and the amount of hot water in the extraction container 9 is 100 cc. Is shown. That is, as the extraction process proceeds after the middle of the period 1606 as it is, the results of actually measuring the pressure and the amount of hot water in the extraction container 9 are sequentially plotted and displayed. Further, FIG. 17 shows that the target pressure and amount of hot water cannot be actually reached in each period due to malfunctions of various valves, paths of hot water and pressure, leaks in the extraction container 9, and the like. That is, the display in FIG. 17 enables the user to compare the target value with the actual value.

  In FIG. 17, a change in the target pressure in the extraction container 9, a change in the target amount of hot water in the extraction container 9, a change in the measured pressure in the extraction container 9, a change in the measured amount of hot water in the extraction container 9, Was shown. However, the target change in pressure in the extraction container 9 and the measured change in pressure in the extraction container 9 may be displayed. Alternatively, the target change in the amount of hot water in the extraction container 9 and the measured change in the amount of hot water in the extraction container 9 may be displayed.

  Although the lengths of the periods 1601 to 1611 are shown uniformly in FIG. 17, the graph is displayed on the information display device 12 at intervals corresponding to the actual length of time of each period. May be. Although the periods 1601 to 1611 have been described as periods in the above, it is possible to use steps, for example, the periods 1601 to 1611 are, in order, the pouring step for steaming, the steaming step, the first pouring step, the pressurizing step, and the high pressure immersion. Rapid depressurization process after (pressure atmospheric release process 1), rapid decompression process after standby state (pressure atmospheric release process 2), standby process 1, container attitude changing process (container inversion process), standby process 2, beverage delivery The process 1 and the beverage delivery process 2 may be used.

  Further, a plurality of graphs of the pressure and hot water amount in the extraction container 9 and the length of each period shown in FIG. Alternatively, a cup of coffee may be extracted by controlling the pressure and amount of hot water in the extraction container 9 and the length of each period so that the selected pattern is obtained.

  In addition, as shown in FIG. 17, a change in the target pressure in the extraction container 9, a change in the target amount of hot water in the extraction container 9, a change in the measured pressure in the extraction container 9, a measured amount of hot water in the extraction container 9 Is displayed over the entire period of extracting one cup of coffee, and changes in the target pressure in the extraction container 9, changes in the target amount of hot water in the extraction container 9, and the measured pressure in the extraction container 9 are shown. And the measured change in the amount of hot water in the extraction container 9 may be stored in the storage means, and may be displayed again in response to a user operation on the operation unit such as the information display device 12.

  FIG. 19 is a diagram showing a state in which the plot display in FIG. 17 ends up to the period 1611. That is, as shown in FIG. 19, the target pressure change in the extraction container 9 (pressure information) is displayed over the entire period for extracting one cup of coffee, and the change in the target hot water amount in the extraction container 9 is displayed. (Liquid amount information), the measured change in the pressure in the extraction container 9 (pressure information), and the measured change in the amount of hot water in the extraction container 9 (liquid amount information) are stored in the storage unit (for example, the storage unit 11b). Further, the information may be displayed again in response to a user operation on the operation unit of the information display device 12. With such a configuration, for example, when the user corrects the recipe so that the taste of the extracted coffee and the graph as shown in FIG. 19 displayed on the information processing device 12 have different tastes and flavors. May be useful as a reference.

  In the present embodiment, on the screen showing the information of FIG. 16 displayed on the information display device 12, the user adjusts the time width of each period (each step) and the target value of the pressure/hot water amount by a touch operation on the graph. It is possible to

  FIG. 20 is a diagram showing how the user has adjusted the target value of the pressure in the period 1602 (steaming process) on the screen of FIG. In FIG. 20, when the user touches a position on the graph of the period 1602 desired to be adjusted and performs a downward flick operation, the processing unit 11a reflects the operation and sets the target value of the pressure in the period 1602 to 1.8. The information display device 12 is controlled so that the atmospheric pressure is changed to 1.5 atmospheric pressure for display.

  FIG. 21 is a diagram showing how the user has adjusted the time width of the period 1602 on the screen of FIG. In FIG. 21, when the user touches a place in the period 1602 desired to be adjusted and flicks leftward, the processing unit 11a changes the period 1602 time from 15 seconds to 10 seconds by reflecting the operation. The information display device 12 is controlled to display. Further, as shown in FIG. 21, as the time width of the period 1602 is adjusted, the graph of the pressure and the amount of hot water is also matched with the change in the adjacent period. In this way, by adjusting the time width, it may be possible to change the increase rate of the pressure or the amount of hot water.

  FIG. 22 is a diagram showing a state in which the user has adjusted the target value of the amount of hot water in the period 1605 (high pressure immersion step) on the screen of FIG. In FIG. 22, when the user touches a position on the graph of the period 1605 desired to be adjusted and performs a downward flick operation, the processing unit 11a reflects the operation and changes the amount of hot water in the period 1605 from 100 cc to 90 cc. The information display device 12 is controlled to display the information.

  20 and 22, the user adjusts the target value of the pressure/hot water amount. However, the user may adjust the measured value of the pressure/hot water amount. Further, on the screen of FIG. 19, the user may be allowed to adjust at least one of the target value of pressure/hot water amount, the measured value of pressure/hot water amount, and the period.

  In this embodiment, as shown in FIG. 19, the pressure in the extraction container 9 and the measured values of the amount of hot water in the extraction container 9 are plotted and displayed on the information display device 12 in real time. Here, the measured values of the other parameters such as the pressure and the amount of hot water, for example, the hot water temperature, may be plotted and displayed on the information display device 12 in real time.

  FIG. 23 is a diagram showing a state (temperature change graph) in which the plot display of the hot water temperature in the extraction container 9 is completed until the period 1611. When the plot display up to the period 1611 ends, the processing unit 11a stores the measured change (temperature information) in the hot water temperature in the extraction container 9 in the storage unit. Then, the information may be displayed again in response to a user operation (for example, a touch operation on the touch panel) on the operation unit of the information display device 12. The temperature of the hot water in the extraction container 9 may be measured, for example, by providing a temperature sensor (an example of a temperature acquisition unit) in the extraction container 9, or acquired based on the measurement value of the temperature sensor 72b. It may be done. In response to a user operation on the operation unit of the information display device 12, display is made possible again, so that the user can check the taste of the extracted coffee and the graph as shown in FIG. 23 displayed on the information display device 12. In some cases it can be used as a reference when modifying a recipe to give it a different taste or flavor. Further, on the screen of FIG. 23, the user may be able to adjust at least one of the hot water temperature and the period by flicking or the like.

  In addition to the hot water temperature, the temperature of the air in the extraction container 9 and the pressure of the hot water in the extraction container 9 can be measured, for example, a temperature sensor or a pressure sensor (an example of a pressure acquisition unit in the extraction container 9). ) May be configured, and the measured values may be plotted and displayed on the information display device 12 in real time. Further, at least one of pressure/hot water amount/hot water temperature in the pipe from the liquid sending amount adjusting device 720 or the extraction container 9 to the coffee beverage sending outlet (pouring port) to the cup C, pressure at the sending outlet/hot water amount/hot water temperature. Alternatively, the measurement value may be measured, and the measured value may be plotted and displayed on the information display device 12 in real time.

  Further, as other parameters, target values such as the grain size of ground beans by the grinder 5A, the grain size of ground beans by the grinder 5B, and chaff separation degree may be displayed on the information display device 12. For example, a sensor for measuring the size of ground beans may be provided at a passing portion that freely falls from the grinder 5A and the grinder 5B, and the measurement value of the grain size may be acquired. Further, the measured value may be stored in the storage means, and may be displayed again in response to a user operation on the operation unit of the information display device 12.

  When the user makes an adjustment on the screens of FIGS. 19 to 23 and gives an instruction to produce a coffee beverage, the processing unit 11a causes various actuators (for example, various actuators) provided in the beverage production apparatus 1 to be based on the adjustment result. , The motor, the solenoid valve, the heater, etc.) to execute the processing of FIG. Here, the adjustment of the hot water temperature is performed, for example, by supplying water to the hot water of 120° C. in the storage portion 725 of the liquid delivery amount adjusting device 720.

  In the present embodiment, an example is shown in which the time from the start of extraction and the actual measured value of the pressure at each actual location (for example, in the extraction container 9) are displayed as a measured pressure value graph. , And changes in the intensity of various tastes may be displayed as a graph. For example, the pressure in the extraction container 9 is actually measured, and from the measured value, for example, a level indicating the intensity of sourness (sourness level) is estimated. Then, the state of change in the sourness level from the start of extraction to the completion of extraction may be graphed to display an estimated taste value graph.

  Further, the time from the start of extraction, the target value of taste based on the setting of various tastes, and the measured value or predicted value or calculated value or estimated value of that taste may be displayed. For example, the extraction is completed in 70 seconds from the start of extraction, and at that time, the sourness level is set to be increased to level 10, and the way of changing in the middle stage is to change the sourness level to level 5 20 seconds after the start of extraction. It is assumed that the setting is made so that the temperature of the hot water is changed, the temperature is raised to the level 8 in the next 20 seconds, and the level is raised to the level 10 in the remaining 30 seconds. The graph of the change may be displayed as a taste target value graph. Then, as in the case of the pressure, the taste target value graph is displayed in advance, and the taste estimated value graph is displayed in real time while being overlaid on the taste target value graph during extraction. good. Although it has been described above that the actual measurement value of the pressure is used to obtain the estimated value of the taste, in addition to the pressure, the hot water temperature, the additional amount of hot or cold water, the way of moving the extraction container 9, the particle size of the beans, the aroma, the color, etc. It is also possible to actually measure and estimate using those measured values, or to derive the measured value using a taste sensor.

  Moreover, although acidity is shown as an example of taste, any taste such as bitterness, sweetness, richness, freshness, umami, and saltiness may be used. Further, it is not limited to taste, and a graph of estimated value or actually measured value of flavor intensity may be displayed. Further, not only one target value, estimated value, or measured value graph of taste, but a graph of target values, estimated values, or measured values of a plurality of taste intensities may be displayed. Further, a taste chart showing a plurality of taste balances may be displayed, and the manner in which the plurality of taste balances change in the extraction step may be displayed to the user by changing and displaying the taste chart.

  FIG. 20 shows an example in which the target value of the pressure during the period is changed by the user performing an operation such as flicking on a position on the graph during the period for which adjustment is desired. The target value of the taste intensity during the period may be changed by the user performing an operation such as flicking on a portion on the graph during the period for which adjustment is desired. In addition, as in the case of FIG. 21, as for the graph of the taste target value, the user may change the target value of the taste intensity during the period by adjusting the time width of the period desired to be adjusted. good.

  FIG. 20 shows an example in which the target value of the pressure during the period changes by the user performing an operation such as flicking on the position on the graph during the period for which adjustment is desired, but it is extracted with the change. The change in taste of the beverage (coffee) may be indicated. For example, a taste chart showing the balance of a plurality of tastes of the beverage extracted when the displayed pressure change is performed in the extraction step is displayed together with the pressure target value graph as shown in FIG. Then, the user performs a flick operation or the like on a portion of the graph during the period for which adjustment is desired to display a state in which the target value of the pressure during the period changes, and at the same time, a plurality of points are displayed depending on the change in the target pressure value. The user may be shown how the taste balance is changed by changing and displaying the taste chart. At that time, the taste chart may be changed and displayed according to the change of the corresponding line of the graph of the target pressure value in accordance with the flick operation by the user. Here, the plurality of tastes may include any taste such as sourness, bitterness, sweetness, richness, freshness, umami, saltiness, etc., and is not limited to taste, and may include flavor strength. good. Further, the present invention is not limited to dealing with the change in the target value of pressure, and for example, the amount of hot water as shown in FIG. 22, the hot water temperature as shown in FIG. A change in the balance of taste may be displayed in response to a change in the length of the period of various steps in the extraction step.

  The configuration for displaying a graph on the information display device 12 has been described with reference to FIGS. 19 to 23. However, the display format is not limited to the graph and may be another format.

  FIG. 24 is a diagram showing an example displayed in a table format instead of the graph format in FIG. In FIG. 24, T1 to T11 correspond to periods 1601 to 1611. As shown in FIG. 24, the target value in each period (process) is displayed as a numerical value. In FIG. 24, since the measurement has not been performed yet, the “measurement” column is displayed as “not yet”. Further, the table of FIG. 24 may be displayed so that each numerical value can be edited by the user. With such a configuration, it becomes possible to change the target value as described in FIGS. 20 to 22 on the table of FIG. The change of the target value received in the table of FIG. 24 is registered as a recipe in the beverage manufacturing apparatus 1, and when the manufacturing instruction of the coffee beverage is instructed similarly to the above, the processing unit 11a, based on the adjusted result. , Various actuators (for example, a motor, a solenoid valve, a heater, etc.) provided in the beverage manufacturing apparatus 1 are controlled to execute the processing of FIG. 11(A).

  27, 28, 29, and 30 are diagrams showing examples of registered recipes. FIG. 27 is an example of a recipe in which the target value displayed as shown in FIG. 24 as a default is adjusted and registered by the user so that the pressure during extraction is low. FIG. 28 is an example of a recipe in which the target value displayed as shown in FIG. 24 as a default is adjusted and registered by the user so as to omit the steaming process. FIG. 29 is an example of a recipe in which the target value displayed as shown in FIG. 24 as a default is adjusted and registered by the user so that the degree of decompression after high-pressure immersion becomes small. FIG. 30 is an example of a recipe in which a target value displayed as a default, for example, as shown in FIG. 24 is adjusted and registered by the user so that the pressure during high-pressure immersion becomes high. In this way, various recipes may be registered based on the table displayed as shown in FIG.

  FIG. 25 is a diagram showing an example in which the measurement values of FIG. 17 are displayed in a table format instead of the graph format. In FIG. 25, T1 to T11 correspond to periods 1601 to 1611. As shown in FIG. 25, the target value in each period (process) is displayed as a numerical value. Furthermore, as shown in FIG. 25, as the acquired pressure/hot water amount measurement values are acquired, they are sequentially displayed in the “measurement” column.

  FIG. 26 is a diagram showing an example in which the measurement values of FIG. 19 are displayed in a table format instead of the graph format. As shown in FIG. 26, the measured values of the acquired pressure/hot water amount are displayed over the entire period of extracting one cup of coffee. Further, the measured value displayed in FIG. 26 may be stored in the storage means, and may be displayed again in response to a user operation on the operation unit of the information display device 12. At this time, the display format may be selectable according to the user operation, such as a graph format or a table format. Further, in FIGS. 24 to 26, the target value/measured value for the pressure and the amount of hot water are displayed, but the target value/measured value for the other parameters such as the hot water temperature already described are displayed and edited by the user. It may be possible.

  In the above description, the screens of FIGS. 17 and 19 to 30 are described as being displayed on the information display device 12. However, the information may be displayed on a device different from the beverage manufacturing device 1 instead of the information display device 12. For example, the screens of FIGS. 17 and 19 to 30 may be displayed on the mobile terminal 17 shown in FIG. In that case, the processing unit 11a transmits data (for example, an HTML file) for displaying the screens in FIGS. 17 and 19 to 30 to the mobile terminal 17 in the system via the communication network 15. In addition, the mobile terminal 17 not only displays the screens of FIGS. 17 and 19 to 30, but also changes the graph display reflecting the user's operation and the target values in the tabular display as described above. It may be possible to edit the measurement value. With such a configuration, the following cases can be dealt with. For example, the user makes an order by changing the recipe registered in the beverage manufacturing apparatus 1 on his/her mobile terminal 17 and transmitting the content of the changed recipe to the beverage manufacturing apparatus 1. Then, after the beverage is provided, the clerk improves the content of the recipe on the information display device 12, and transmits the improved recipe to the mobile terminal 17. In such a case, the user can change the recipe or the like on his/her own mobile terminal 17, which is accustomed to use, so that convenience may be improved. In addition, it may be possible to obtain an improved recipe by a store clerk.

<Summary of Embodiments>
The extraction device of the above-described embodiment includes an extraction container (extraction container 9) for extracting a beverage liquid from an extraction target, a supply unit that supplies a liquid to the extraction container (FIG. 3), and the liquid by the supply unit. Means for controlling the supply of the liquid (amount adjusting device 720), a display means for displaying the state in the extraction container when extracting the beverage based on the control by the control means (the information display device 12). ) Is provided. Further, the state in the extraction container is the liquid amount in the extraction container, the display means, when extracting the beverage liquid, displays a change in the liquid amount in the extraction container as a liquid amount change graph. It is characterized by

  With such a configuration, when extracting the beverage liquid, for example, a change in the amount of liquid in the extraction container can be displayed.

  Further, the supply means, when extracting the beverage liquid, is configured to be able to sequentially perform a plurality of extraction steps, the extraction device, the liquid amount in the extraction container in each of the plurality of extraction steps A storage unit (storage unit 11b) that stores the liquid amount information is provided, and the display unit displays the liquid amount change graph based on the liquid amount information read from the storage unit.

  With such a configuration, the user can change the recipe, for example, with reference to the read liquid amount change graph.

  In addition, the display means reflects and displays the operation on the mode of change of the liquid amount represented by a part of the liquid amount change graph according to the user's operation, and the storage means performs the reflection. The liquid amount information corresponding to the liquid amount change graph is newly stored, and the control unit reads the liquid amount information newly stored in the storage unit and corresponds to the read liquid amount information. The liquid amount is controlled to be the liquid amount in the extraction container in each of the plurality of extraction steps. Further, the extraction device includes a liquid amount acquisition unit that acquires the liquid amount in the extraction container, and the display unit displays the liquid amount change graph based on the liquid amount acquired by the liquid amount acquisition unit. It is characterized by doing.

  With such a configuration, the user can change the measured and displayed liquid amount change graph by flicking or the like.

  Further, the supply means is capable of supplying air pressure to the extraction container, the state in the extraction container is the air pressure in the extraction container, the display means, when extracting the beverage liquid, the extraction It is characterized in that a change in air pressure in the container is displayed as a pressure change graph. Further, the storage means can store the air pressure in the extraction container in each of the plurality of extraction steps as pressure information, and the display means displays the pressure based on the pressure information read from the storage means. It is characterized by displaying a change graph.

  With such a configuration, the user can change the recipe by referring to the read pressure change graph, for example.

  Further, the display unit reflects and displays the operation in a mode of pressure change represented by a part of the pressure change graph in accordance with a user's operation, and the storage unit displays the operation. The pressure information corresponding to the pressure change graph is newly stored, the control unit reads the pressure information newly stored in the storage unit, and the air pressure corresponding to the read pressure information is extracted from the plurality of extraction units. It is characterized in that the air pressure in the extraction container in each step is controlled to be the same. In addition, the extraction device includes a pressure acquisition unit that acquires the air pressure in the extraction container, and the display unit displays the pressure change graph based on the air pressure acquired by the pressure acquisition unit. To do.

  With such a configuration, the user can change the measured and displayed pressure change graph by flicking or the like.

  Further, the display means is capable of displaying the liquid amount change graph and the pressure change graph as one screen. With such a configuration, the liquid amount change graph and the pressure change graph can be displayed on one screen.

  Also, the state in the extraction container is the hot water temperature in the extraction container, the display means, when extracting the beverage liquid, to display the change in the hot water temperature in the extraction container as a temperature change graph. Is characterized by. Further, the storage means is capable of storing the hot water temperature in the extraction container in each of the plurality of extraction steps as temperature information, and the display means is based on the temperature information read from the storage means. It is characterized by displaying a temperature change graph.

  With such a configuration, the user can change the recipe with reference to the read temperature change graph, for example.

  In addition, the display unit reflects and displays the operation in a mode of temperature change represented by a part of the temperature change graph in accordance with a user operation, and the storage unit displays the operation in which the reflection is performed. The temperature information corresponding to the temperature change graph is newly stored, the control unit reads the temperature information newly stored in the storage unit, and the hot water temperature corresponding to the read temperature information is the plurality of hot water temperatures. The hot water temperature in the extraction container in each extraction step is controlled to be the same. Further, the extraction device includes a temperature acquisition unit that acquires the hot water temperature in the extraction container, and the display unit displays the temperature change graph based on the air pressure acquired by the temperature acquisition unit. And

  With such a configuration, the user can change the measured and displayed temperature change graph by flicking or the like.

  Further, the display means is capable of displaying the liquid amount change graph, the pressure change graph, and the temperature change graph as one screen. With such a configuration, the liquid amount change graph, the pressure change graph, and the temperature change graph can be displayed on one screen.

  1 Beverage Manufacturing Equipment: 9 Extraction Container: 71 Reserve Tank: 72 Water Tank: 720 Liquid Delivery Volume Control Device: 727 Drive Unit: 72f, 72h, 73c, 73b, 728 Solenoid Valve

Claims (5)

An extraction container for extracting coffee from coffee beans,
When extracting the coffee, supply means for supplying a liquid to the extraction container,
Control means for controlling the supply of the liquid by the supply means,
Storage means for storing the liquid volume of the extraction container as liquid volume information,
When extracting the coffee based on the control by the control means, display means for displaying a time-series change of the liquid volume of the extraction container as a liquid volume change graph,
The display unit displays the liquid amount change graph based on the liquid amount information read from the storage unit,
The display means displays the operation by reflecting the operation on the mode of change in the liquid amount represented by a part of the liquid amount change graph in accordance with the operation of the user,
The storage means newly stores liquid amount information corresponding to the reflected liquid amount change graph,
The control unit reads the liquid amount information newly stored in the storage unit, and controls the liquid amount corresponding to the read liquid amount information to be the liquid amount of the extraction container.
An extraction device characterized by the above. An extraction container for extracting coffee from coffee beans,
When extracting the coffee, supply means for supplying a liquid to the extraction container,
Control means for controlling the supply of the liquid by the supply means,
Storage means for storing the hot water temperature of the extraction container as hot water temperature information;
When extracting the coffee based on the control by the control means, display means for displaying a time-series change of the hot water temperature of the extraction container as a hot water temperature change graph,
The display means displays the hot water temperature change graph based on the hot water temperature information read from the storage means,
The display means displays the operation by reflecting the operation on the change mode of the hot water temperature represented by a part of the hot water temperature change graph according to the user's operation,
The storage unit newly stores hot water temperature information corresponding to the reflected hot water temperature graph,
The control means reads the hot water temperature information newly stored in the storage means, and controls the hot water temperature corresponding to the read hot water temperature information to be the hot water temperature of the extraction container.
An extraction device characterized by the above. A display method executed in an extraction device, comprising:
When extracting coffee, a supply step of supplying a liquid to an extraction container for extracting the coffee from coffee beans,
A control step of controlling the supply of the liquid in the supply step,
A storage step of storing the liquid volume of the extraction container as liquid volume information,
When extracting the coffee based on the control in the control step, a display step of displaying a time-series change of the liquid amount of the extraction container as a liquid amount change graph,
In the display step, the liquid amount change graph is displayed based on the liquid amount information stored in the storage process,
In the display step, in response to a user operation, the operation is reflected and displayed in a mode of change in the liquid amount represented by a part of the liquid amount change graph,
In the storing step, liquid amount information corresponding to the reflected liquid amount change graph is newly stored,
In the control step, the liquid volume information newly stored in the storage step is read out, and the liquid volume corresponding to the read out liquid volume information is controlled to be the liquid volume of the extraction container.
A display method characterized by the above. A system including an extraction device for extracting coffee from coffee beans and a mobile terminal,
The extraction device is
An extraction container for extracting coffee from the coffee beans,
When extracting the coffee, supply means for supplying a liquid to the extraction container,
Control means for controlling the supply of the liquid by the supply means,
Storage means for storing the liquid volume of the extraction container as liquid volume information,
When extracting the coffee based on the control by the control unit, a transmitting unit that transmits information for displaying a time-series change in the liquid amount of the extraction container as a liquid amount change graph to the mobile terminal. Prepare,
The mobile terminal is
Receiving means for receiving information for displaying a time series change of the liquid volume of the extraction container transmitted by the transmitting means as a liquid volume change graph,
Display means for displaying a time-series change in the liquid volume of the extraction container as a liquid volume change graph based on the information received by the receiving means,
The display unit displays the liquid amount change graph based on the liquid amount information read from the storage unit,
The display means displays the operation by reflecting the operation on the mode of change in the liquid amount represented by a part of the liquid amount change graph in accordance with the operation of the user,
The storage means newly stores liquid amount information corresponding to the reflected liquid amount change graph,
The control unit reads the liquid amount information newly stored in the storage unit, and controls the liquid amount corresponding to the read liquid amount information to be the liquid amount of the extraction container.
A system characterized by that. A display method executed in an extraction device, comprising:
When extracting coffee, a supply step of supplying a liquid to an extraction container for extracting the coffee from coffee beans,
A control step of controlling the supply of the liquid in the supply step,
A storage step of storing the hot water temperature of the extraction container as hot water temperature information;
When extracting the coffee based on the control in the control step, a display step of displaying a time-series change of the hot water temperature of the extraction container as a hot water temperature change graph,
In the display step, the hot water temperature change graph is displayed based on the hot water temperature information stored in the storage step,
In the display step, the operation is reflected and displayed in a mode of change in hot water temperature represented by a part of the hot water temperature change graph according to a user's operation,
In the storing step, hot water temperature information corresponding to the reflected hot water temperature graph is newly stored,
In the control step, the hot water temperature information newly stored in the storage step is read, and the hot water temperature corresponding to the read hot water temperature information is controlled to be the hot water temperature of the extraction container.
A display method characterized by the above.

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