JP2006158772A - Coffee beverage-making apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coffee beverage-making apparatus which can offer hot water spraying type and pressurization extraction type coffees in one set and aim at miniaturization of the apparatus and a reduction in a parts cost. <P>SOLUTION: The coffee beverage-making apparatus 1 of this invention, which extracts a coffee liquid from coffee raw material powder, has a drip coffee extraction part 1A which extracts a drip coffee by sprinkling hot water to the coffee raw material powder from a sprinkler 41, an espresso coffee extraction part 1B which extracts an espresso coffee by pressurization supplying the hot water to the coffee raw material powder, a hot water tank 10 which is equipped with a heater 52 and forms the hot water of a temperature suitable for a coffee liquid extraction, a pump 12 which conveys the hot water within this hot water tank 10 to the drip coffee extraction part 1A and the espresso coffee extraction part 1B, and a hot water flowmeter 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a coffee beverage production apparatus for extracting a coffee liquid from a coffee raw material powder composed of ground coffee beans.

  Traditionally, coffee has been an essential menu for soft drinks in restaurants, etc. In recent years, in addition to ordinary sprinkled drip coffee, pressurized extraction (espresso) coffee is also commonly used. It has become to. The above-mentioned drip coffee is a coffee raw material powder made from ground coffee beans crushed to a predetermined particle size in a predetermined chamber, and hot water is sprinkled from an upper sprinkler to extract the coffee liquid. This is the coffee that is usually drunk.

On the other hand, in the case of the pressure extraction type, that is, espresso coffee, the coffee raw material powder crushed to a predetermined particle size is loaded into an extraction chamber having a pressure resistant structure, and hot water pressurized by a pump is applied to the coffee raw material powder. The coffee liquid is extracted by passing it through. In this way, elution of coffee components is promoted by using hot water at the time of coffee liquid extraction, and hot water penetrates into the ground bean structure by supplying such hot water under pressure, so that dark coffee liquid That is, espresso coffee is obtained (see, for example, Patent Document 1).
JP 2001-76244 A

  By the way, conventionally, such drip-type coffee and espresso coffee have been extracted and manufactured by separate devices. For this reason, particularly in fast food restaurants that provide hamburgers, donuts, etc., there is a problem that the space for installing these devices cannot be secured due to the limited area of the kitchen and counter.

  Therefore, a coffee beverage production apparatus that can simultaneously extract espresso coffee and drip coffee with a single device has been developed. In this case, a hot water tank for extracting espresso coffee and an espresso from the hot water tank are being developed. A pump for conveying hot water to the coffee extraction unit, a hot water tank for extracting drip coffee, and a pump for conveying hot water from the hot water tank to the drip coffee extraction unit were separately provided. For this reason, there is a problem in that the apparatus itself becomes large, resulting in an increase in installation space and an increase in the number of parts.

  Accordingly, the present invention has been made to solve the conventional technical problems, and can provide a hot water type and a pressure extraction type coffee with a single unit, as well as downsizing of the apparatus and cost of parts. It is intended to provide a coffee beverage production apparatus that can reduce the amount of waste.

  The coffee beverage production apparatus of the present invention extracts a coffee liquid from a coffee raw material powder, a sprinkling-type coffee extraction unit that extracts hot water from a sprinkler to extract the coffee liquid, and a coffee raw material A pressurized extraction type coffee extraction unit that supplies hot water to powder to extract coffee liquid, a hot water tank that includes a heater and generates hot water at a temperature suitable for coffee liquid extraction, and hot water in the hot water tank. It is characterized by comprising transport means for transporting to a sprinkling coffee extraction unit and a pressurized extraction coffee extraction unit.

  According to a second aspect of the present invention, there is provided the coffee beverage production apparatus according to the first aspect, wherein the conveying means includes a pump for pumping hot water in the hot water tank, and a hot water pumped by the pump. It is comprised from the flow-path switching means for supplying alternatively to either of the pressure extraction type coffee extraction parts, It is characterized by the above-mentioned.

  In the present invention, in a coffee beverage production apparatus for extracting coffee liquid from coffee raw material powder, a hot water is applied to the coffee raw material powder from a sprinkler to extract the coffee liquid, and hot water is supplied to the coffee raw material powder. Pressurized extraction type coffee extraction unit that extracts coffee liquid by supplying pressure, a hot water tank that has a heater and generates hot water at a temperature suitable for coffee liquid extraction, and hot water in this hot water tank Since it is provided with a transport means for transporting to the extraction unit and the pressure extraction type coffee extraction unit, in a single coffee beverage production apparatus, the hot water type coffee beverage, that is, drip coffee, the pressure extraction type coffee beverage, That is, both espresso coffee can be provided.

  Therefore, compared with the case where a beverage production apparatus is installed for each of drip coffee and espresso coffee, it is possible to greatly reduce the installation space and the parts cost.

  In particular, according to the present invention, the hot water tank for supplying hot water to each coffee extraction unit generates hot water at a temperature suitable for coffee liquid extraction, and therefore a hot water tank corresponding to each coffee extraction unit is provided. Without any problem, it becomes possible to send hot water having a temperature suitable for coffee extraction to both extraction units in one hot water tank.

  Therefore, the apparatus can be reduced in size and the number of parts can be reduced, so that the cost can be reduced.

  According to invention of Claim 2, in the said invention, a conveyance means pumps out the hot water in a hot water tank, and the hot water pumped out by this pump is a sprinkling type coffee extraction part, or pressurization. Since it is composed of a flow path switching means for selectively supplying to either of the extraction type coffee extraction units, as described above, the temperature of an appropriate temperature for coffee extraction is set in both extraction units in one hot water tank. It is possible to deliver hot water.

  In addition, since the pump selectively sends hot water in the hot water tank to any one of the coffee extraction parts by the flow path switching means, a large amount of hot water does not flow out at a time. Can be realized.

  Furthermore, since a large amount of hot water does not flow out at a time, the temperature drop of the hot water in the hot water tank can be suppressed, and the time required for reheating in the hot water tank can be shortened. Therefore, the time required until the next coffee extraction can be shortened, and the coffee beverage can be provided smoothly.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a coffee beverage production apparatus 1 of the present invention, a side view of the coffee beverage production apparatus 1 of FIG. 2, and FIG. 3 shows a configuration diagram of the coffee beverage production apparatus 1.

  The coffee beverage production apparatus 1 according to the embodiment is installed in a kitchen or counter of a fast food store, for example, and has a drip coffee extraction unit (sprinkled coffee extraction unit) 1A on the right side and a left side toward the left side. An espresso coffee extraction unit (pressurization extraction type coffee extraction unit) 1B is integrated to form a main body 6. In the drip coffee extraction unit 1A, sprinkled hot coffee that is a coffee liquid extracted by spraying hot water on the coffee raw material powder, that is, drip coffee is manufactured, and in the espresso coffee extraction unit 1B, the coffee raw material powder A pressure extraction type coffee, that is, a coffee liquid extracted by supplying hot water under pressure, that is, espresso coffee is produced.

  In the middle of the front surface of the espresso coffee extraction unit 1B, there is provided a nozzle member 4 integrally provided with a coffee liquid nozzle 2 for discharging the coffee liquid of espresso and a milk foam nozzle 3 for discharging milk foam. Below the nozzle member 4 is provided a cup support 7 on which a cup for receiving the extracted coffee liquid is placed. In addition, the nozzle member 4 is comprised so that height adjustment is possible up and down. In addition, a plurality of operation buttons 5 for selecting the type of beverage to be discharged are provided on the upper front of the espresso coffee extraction unit 1B, and the right side of the nozzle member 4 is used for extracting coffee liquid. There is provided a residue receiving portion 8 that receives the generated residue and is provided so as to be drawn forward. Reference numeral 9 denotes a bean storage container for storing coffee beans.

  On the other hand, a sprinkler 41 is provided at the upper front of the drip coffee extraction unit 1A, and a drip coffee powder chamber 42 is detachably attached to the lower side of the sprinkler 41. Further, a heat retaining pot 43 is provided below the powder chamber 42, and a decanter support base 44 is formed below the heat retention pot 43, and on the decanter support base 44, The heat retention decanter 46 is placed corresponding to the above.

  The heat retaining pot 43 and the heat retaining decanter 46 have, for example, a stainless steel vacuum double structure and have extremely high heat retaining performance. A manual opening / closing valve 47 is provided at the outlet 43 </ b> A of the heat retaining pot 43.

  Next, the internal configuration of the coffee beverage manufacturing apparatus 1 will be described with reference to FIG. The espresso coffee extraction unit 1B includes a hot water tank 10 supplied from a water supply pipe 51 via two water supply valves 48 and 49, a pump (gear pump) 12 attached to the bottom of the hot water tank 10, and an espresso extraction mechanism. 13 and a milk former 61 are provided.

  The hot water tank 10 is a tank capable of storing several liters of drinking water, and the water stored in the hot water tank 10 is heated and kept at a temperature suitable for extracting coffee liquid, for example, + 95 ° C. to + 96 ° C. ( An electric heater (equipped with an electric heater for hot water tanks, equipped with a bimetal thermostat for preventing airing) 52 and a water level switch 53 are provided. A thermistor (not shown) for detecting the temperature of the hot water tank 10 is also attached. Based on the temperature detected by the thermistor, the control device 26 provided in the main body 6 energizes the electric heater 52 when the temperature of the stored water decreases to + 95 ° C., and cuts off the energization when it rises to + 96 ° C. Further, the water supply valves 48 and 49 are controlled to open and close by the control device 26 based on the water level switch 53. Below the opening of the water supply pipe 51, a downcomer pipe (not shown) that opens on the water surface and descends to the lower part of the hot water tank 10 is attached.

  Reference numeral 56 denotes a steam pipe through which steam from the hot water tank 10 or overflowed hot water flows out, and a boil prevention bimetal thermostat 57 is attached to the steam pipe 56. If the hot water in the hot water tank 10 is boiled by any trouble in the control, the bimetal thermostat is turned off at the temperature of the steam or hot water coming out of the steam pipe 56 and the electric heater 52 is energized. It is set as the structure which interrupts | blocks.

  The pump 12 provided at the bottom of the hot water tank 10 is a pump for pressurizing and pumping hot water in the hot water tank 10, and the suction port of the pump 12 is in the hot water in the upper part of the hot water tank 10. A hot water flow meter 14 having a function as a flow path switching means is connected to the discharge port. The hot water flow meter 14 is provided with a discharge port connected to the espresso extraction mechanism 13 via the espresso side hot water supply pipe 16 and a discharge port connected to the watering pipe 39 of the drip extraction unit 1A. The espresso side solenoid valve 15 and the drip side solenoid valve 31 are connected to each. In addition, 11 is a relief solenoid valve provided in the espresso side hot water supply pipe 16.

  The hot water flow meter 14 is connected to a circulation pipe 18 provided with a hot water circulation electromagnetic valve 17 constituting a circulation path, and the other end of the circulation pipe 18 is connected to the hot water tank 10. ing.

  On the other hand, the bean storage container 9 is installed above the espresso extraction mechanism 13. Below the bean storage container 9, there is provided a coffee mill 22 for pulverizing the coffee beans stored in the bean storage container 9 to a predetermined particle size by a grinding blade (not shown) that rotates at high speed. Further, below the coffee mill 22, a measuring device 27 for measuring the coffee powder crushed in the coffee mill is provided, and further below the measuring device 27, the coffee powder measured by the measuring device is provided. Is provided in the espresso extraction mechanism 13. An extraction side pipe 24 that constitutes a coffee liquid extraction path is connected to the lower portion of the espresso extraction mechanism 13, and a coffee extraction electromagnetic valve that controls the discharge of the extracted coffee liquid is connected to the extraction side pipe 24. 25 is interposed. The coffee liquid nozzle 2 is connected to an extraction side pipe 24 downstream of the coffee extraction electromagnetic valve 25. As a result, the coffee liquid can be poured into a cup (not shown) arranged on the cup support 7.

  Note that sugar and cream are injected into the cup at the request of the customer along with the injection of the coffee liquid, but the illustration and explanation of these supply systems are omitted.

  The espresso extraction mechanism 13 includes a cylinder that accommodates ground beans supplied from the coffee mill 22 via a measuring device 27 and a chute 23, a piston that can be inserted into and removed from the cylinder, and a piston drive that drives the piston. A cylinder unit is composed of these cylinders, pistons, piston drive motors, etc., and a unit for tilting the entire cylinder unit at a predetermined angle, or when the cylinder unit tilts, A lid member that closes the upper surface opening is provided. Further, the coffee extraction electromagnetic valve 15 includes an adjustment mechanism that adjusts the coffee liquid that has entered the electromagnetic valve 15 so as to have a predetermined pressure or higher.

  Next, the milk former 61 of the embodiment includes a hot water supply pipe 62 for taking out hot water from the hot water tank 10, a milk foam electromagnetic pump 63, a milk foam heater block (milk foam electric heater) 64, and a milker. 65 etc. One end of the hot water supply pipe 62 opens into the hot water in the upper part of the hot water tank 10, and a milk foam electromagnetic pump 63 and a milk foam heater block 64 are sequentially provided. A milker 65 is connected to the other end of the hot water supply pipe 62. Further, the hot water supply pipe 62 located between the milk foam electromagnetic pump 63 and the milk foam heater block 64 is provided with a branch pipe 67, and the branch pipe 67 is opened to the outside with a predetermined pressure. A drain electromagnetic valve 68 is provided.

  The milk foam heater block 64 incorporates an electric heater, and heats the hot water supplied from the hot water tank 10 through the hot water supply pipe 62 and the milk foam electromagnetic pump 63 to, for example, about + 170 ° C. to generate steam. The steam is supplied to the milker 65. The milk foam heater block 64 is provided with a temperature sensor (not shown), and the controller 26 controls the temperature so that the steam temperature is set based on the detection of the temperature sensor.

  The milk foamer 61 causes a swirl flow by discharging steam generated by the milk foam heater block 64 to the milker 65, and sucks milk from the milk pack 70 which is cooled in a predetermined cool box 69 from the milk nozzle 66. Then, air is mixed with this and foamed. And it discharges from the said milk foam nozzle 3, and supplies it to the cup etc. which were mounted under the said nozzle 3.

  The hot water tank 10 is connected to a hot water supply pipe 19 having one end opened in the hot water in the upper part of the hot water tank, and the hot water supply pipe 19 includes a hot water supply electromagnetic valve 21. A nozzle 19A attached to the other end of the hot water supply pipe 19 is provided on the front right side of the espresso coffee extraction unit 1B, and discharges only hot water by operating the operation switch 5. A drain pipe 58 is provided on the bottom surface of the hot water tank 10, and a drain valve 59 is provided on the other end of the drain pipe 58.

  On the other hand, the sprinkler 41 is provided in the drip coffee extraction unit 1A. The sprinkler 41 is provided with a sprinkler pipe 39 in which the pump 12, the hot water flow meter 14, and the drip side electromagnetic valve 31 are interposed. The hot water tank 10 is connected via

  The control device 26 includes a memory that stores programs and data, a timer that generates a clock signal, and a CPU that operates based on the clock signal and the program. Further, a hot water flow meter 14, a thermistor, a water level switch 53 and the like are connected to the input side of the control device 26, and the pump 12, espresso side electromagnetic valve 15, drip side electromagnetic valve 31, hot water are connected to the output side. Circulating solenoid valve 17, hot water supply solenoid valve 21, coffee extraction solenoid valve 25, drainage solenoid valve 68, espresso extraction mechanism 13, electric heater 52, milk foam heater block 64 (actually an internal electric heater), for milk foam An electromagnetic pump 63, water supply valves 48, 49, and the like are connected and controlled based on the output of the control device 26.

  With the above configuration, the operation of the coffee beverage manufacturing apparatus 1 of the present embodiment will be described. Before the operation button 5 is operated, any solenoid valve is not energized and is closed or allowed to flow through hot water above a certain pressure.

  After the power is turned on, the control device 26 energizes and opens the water supply valves 48 and 49 to supply water to the hot water tank 10. When the water level switch 53 detects the full water level of the hot water tank 10, the control device 26 closes the water supply valves 48 and 49.

  Next, the control device 26 generates hot water in the hot water tank 10. In this case, the control device 26 controls energization of the electric heater 52 and keeps the temperature of the hot water in the hot water tank 10 at + 95 ° C. to + 96 ° C. The control device 26 controls energization to the milk foam heater block 64 and raises the temperature to the above-described temperature.

  Then, when espresso coffee is selected with the operation button 5 provided on the main body 6, espresso coffee extraction start input is performed to the control device 26. As a result, the control device 26 opens the hot water circulation electromagnetic valve 17 and executes a pipe temperature raising step for performing the low speed operation of the pump 12 for a predetermined time, in the embodiment, for 4 seconds. Thereby, the hot water in the hot water tank 10 is sent out by the pump 12 to the hot water circulation electromagnetic valve 17 and the circulation pipe 18 that constitute the circulation path through the hot water flow meter 14.

  The hot water staying in the pipe located between the pump 12 and the hot water flow meter 14 is pumped to the circulation pipe 18 via the hot water circulation electromagnetic valve 17 and returned to the hot water tank 10. Thereby, the temperature of the pipe located between the pump 12 and the hot water flow meter 14 can be increased with hot water of about + 95 ° C. to + 96 ° C. supplied from the hot water tank 10.

  After the predetermined time has elapsed since the start of the pipe temperature raising step, the control device 26 stops the operation of the pump 12, then closes the hot water circulation electromagnetic valve 17, and ends the pipe temperature raising step. On the other hand, the espresso extraction mechanism 13 is subjected to the next extraction preparation process after the end of the previous coffee liquid supply process. That is, in the extraction preparation step, first, the control device 26 puts the cylinder of the espresso extraction mechanism 13 in an upright state, pulverizes the coffee beans in the bean storage container 9 in advance in the coffee mill 22, and then grinds the ground beans (coffee raw material powder). In such a state, the weight is reduced by the measuring instrument 27 and supplied into the cylinder via the chute 23.

  Thereafter, when the supply of the ground beans is completed, the control device 26 energizes and operates the piston drive motor, rotates the entire cylinder unit downward about the lower end, and tilts the cylinder at a predetermined angle. Thereafter, the control device 26 seals the upper end opening of the cylinder with a lid member. At this time, the control device 26 lowers the lid member in synchronization with the inclination of the cylinder unit, inserts it into the cylinder, and stops the drive of the piston drive motor. Further, the control device 26 operates the piston drive motor to push up the piston and compress the ground beans in the cylinder.

  In this state, the control device 26 proceeds to the coffee liquid extraction process, opens the espresso side electromagnetic valve 15 and drives the pump 12. Thereby, the hot water in the upper part of the hot water tank 10 heated to about + 95 ° C. to + 96 ° C. at a pressure of 0.3 MPa is supplied to the cylinder of the espresso extraction mechanism 13.

  Thereafter, the control device 26 supplies hot and pressurized hot water to the cylinder sealed with the lid member via the hot water supply side pipe 16 to extract the coffee liquid from the compressed ground beans. At this time, high-temperature and high-pressure hot water is supplied into the cylinder, so that a dark coffee liquid, that is, espresso coffee from which the coffee components are sufficiently eluted from the beginning of extraction is extracted.

  Then, the coffee liquid extracted by the cylinder of the espresso extraction mechanism 13 is discharged to the coffee liquid nozzle 2 through the extraction side pipe 24 and the coffee extraction electromagnetic valve 25. Here, the coffee extraction electromagnetic valve 25 is controlled by the control device 26 so that the coffee liquid is allowed to flow at a constant pressure, for example, 0.3 MPa or more, so that the coffee liquid to be extracted has a constant pressure (this embodiment). Then, since the pressure of 0.3 MPa is applied by the pump 12 and the pressure is further applied by the ground beans swollen in the cylinder, the pressure of 0.4 MPa or more can actually be applied. . As a result, fine fine bubbles can be generated on the surface of the coffee liquid, and a coffee liquid with a rich and mellow taste and aroma can be obtained, so that the quality of the coffee liquid can be improved. Become.

  When the control unit 26 energizes the milk foam electromagnetic pump 63 while the coffee liquid is being extracted from the cup or the like, the milk foamer 61 is operated as described above, and the upper surface of the extracted coffee liquid The frothed milk will be poured.

  Here, when the water level of the hot water tank 10 is lowered by the production and extraction of espresso coffee (about 150 ml for one cup) and the control device 26 detects the lower limit water level with the water level switch 53, the water supply valves 48 and 49 are opened. The hot water tank 10 is replenished with drinking water. The replenished water flows into the lower part of the hot water tank 10 through a downcomer (not shown). Then, the control device 26 closes the water supply valves 48 and 49 at a predetermined full water level.

  In this case, the hot water flowing from the hot water tank 10 into the pump 12 is hot water in the upper part of the hot water tank 10 (the replenished water flows into the lower part of the hot water tank 10 through the downcomer). The decrease in the hot water supply temperature to the espresso extraction mechanism 13 and the sprinkler 41 due to the replenishment of hot water to 10 can be minimized.

  The controller 26 energizes the electric heater 52 to raise the temperature when the temperature of the hot water in the hot water tank 10 is lowered to + 95 ° C. as described above, but the time for raising the temperature to + 96 ° C. is short. This eliminates as much as possible the period of lower than + 85 ° C., which is the appropriate temperature, and prevents sales loss.

  Next, when extracting drip coffee, first, a predetermined amount (for example, 8 to 10 cups) of ground beans for drip is put into the flour chamber 42 and set below the sprinkler 41. . When drip coffee is selected with the operation button 5 provided on the main body 6, drip coffee extraction start input is performed to the control device 26. As a result, the control device 26 opens the hot water circulation electromagnetic valve 17, performs the low speed operation of the pump 12 for a predetermined time, in the embodiment, for 4 seconds, and executes the pipe temperature raising step as described in detail above. Thereby, the hot water in the hot water tank 10 is sent out by the pump 12 to the hot water circulation electromagnetic valve 17 and the circulation pipe 18 that constitute the circulation path through the hot water flow meter 14.

  Thereafter, the control device 26 operates the pump 12 for a predetermined time and opens the drip side solenoid valve 31 to spray water from the hot water tank 10 through the pump 12, the hot water flow meter 14, the drip side solenoid valve 31, and the sprinkling pipe 39. Supply 8 to 10 cups of hot water to the vessel 41. Then, the hot water is sprayed from the sprinkler 41 to the powder chamber 42.

  At this time, the hot water supplied from the hot water tank 10 is hot water having a high temperature of about + 96 ° C. in the upper part of the hot water tank 10, so that the ground beans are sufficiently steamed in the powder chamber 42 and the coffee liquid is smoothly extracted. Will be done.

  The coffee liquid extracted in the powder chamber 42 flows down into the heat retaining pot 43 from the lower end and is stored. The heat-insulating pot 43 has a capacity of 1 to several liters and has a vacuum double structure and high heat-retaining ability. Therefore, the drip coffee extracted without a heat-retaining heater is appropriately heated for a predetermined period. Can keep warm. When the drip coffee is provided, the coffee extraction manual valve 47 of the heat retaining pot 43 is opened, and the drip coffee in the heat retaining pot 43 is discharged into the heat retaining decanter 46 disposed below it. Will be poured into the cup.

  Since this heat retention decanter 46 is also of a vacuum double structure and has a high heat retention capacity, the internal drip coffee can be kept at a suitable temperature for a predetermined period without a heat retaining heater. In this way, by keeping the drip coffee warm without the heater by the heat-insulating pot 43 and the heat-retaining decanter 46, it becomes possible to provide high-quality drip coffee without impairing the aroma of the coffee.

  Here, when the water level of the hot water tank 10 is lowered by the production and extraction of drip coffee (about 1.7 liters once) and the control device 26 detects the lower limit water level with the water level switch 53, the water supply valve 48, 49 is opened to replenish the hot water tank 10 with drinking water. The replenished water flows into the lower part of the hot water tank 10 through a downcomer (not shown). Then, the control device 26 closes the water supply valves 48 and 49 at a predetermined full water level.

  The control device 26 extracts the espresso coffee and the drip coffee by operating the operation button 5 provided on the main body 6 as described above, but when one of the extractions is started, the other It is assumed that no extraction is performed. That is, the espresso side solenoid valve 15 or the drip side solenoid valve 31 is alternatively opened to supply hot water in the hot water tank 10 to the espresso extraction mechanism 13 or the water heater 41.

  This makes it possible to extract both coffee liquids with a single hot water tank 10 without providing a hot water tank for espresso extraction or a hot water tank for drip extraction, thereby reducing the size of the apparatus. it can. In particular, in the hot water tank 10, since hot water having a temperature suitable for extraction of both coffee liquids, for example, + 95 ° C. to + 96 ° C. is generated, the hot water tank 10 can be made into one. One pump 12 for pumping hot water from the tank 10 and one hot water flow meter 14 can be provided. Since the number of parts can be reduced, cost reduction can be realized.

  In the present embodiment, when one of the coffee liquids is being extracted and the operation button 5 for extracting the other coffee liquid is operated, the control device 26 controls the coffee liquid. It is assumed that the extraction is suspended and the extraction of the coffee liquid that has been suspended is started after the extraction of the coffee liquid currently being extracted is completed. In addition, you may display to the user by the display means etc. which are not shown in figure in the said pending | holding state.

  In this embodiment, the extraction of espresso coffee takes about 40 seconds after the operation button 5 is operated, and the extraction of drip coffee takes about 3 minutes after the operation button 5 is operated. However, since about 1700 ml of hot water is supplied to the water sprinkler 41, the amount of water replenished to the hot water tank 10 is about 1700 ml, which is the same amount. By replenishing the water, the temperature in the hot water tank 10 decreases, and it takes about 10 minutes after the operation button 5 is operated to reheat the temperature to + 95 ° C. to + 96 ° C. However, when the extraction of espresso coffee is put on hold during the extraction of drip coffee as in this embodiment, a predetermined amount of hot water is supplied to the sprinkler 41 without waiting for the time required for the reheating. The espresso coffee can be extracted by opening the espresso side electromagnetic valve 15 immediately after the supply is completed.

  Thereby, the hot water flow meter 14 which detects the flow volume of the hot water supplied from the hot water tank 10 can be made into one. Furthermore, since the solenoid valves 15 and 31 are not opened at the same time, it is possible to prevent a large amount of hot water from flowing out of the hot water tank 10 at one time, and to suppress a temperature drop in the hot water tank 10. Therefore, the time required for reheating in the hot water tank 10 can be shortened, and the time required until the next coffee liquid extraction can be shortened. A coffee beverage can be provided smoothly. Further, since a large amount of hot water does not flow out at a time as described above, it can be realized with a small pump.

  As described in detail above, according to the present invention, a single coffee beverage production apparatus 1 provides both a sprinkled coffee beverage, i.e., drip coffee, and a pressure extraction coffee beverage, i.e., espresso coffee. Will be able to.

  Therefore, compared with the case where a beverage production apparatus is installed for each of drip coffee and espresso coffee, it is possible to greatly reduce the installation space and the parts cost.

  In this embodiment, the amount of hot water supplied to the espresso extraction mechanism 13 or the water sprinkler 41 is controlled by the hot water flow meter 14, but in addition to this, the amount of hot water supplied is controlled by the operation time of the pump 12. It may be acceptable.

  In the embodiment, drip coffee and espresso coffee have been described as examples. However, the hot water type coffee and the pressure extraction type coffee are not limited to these, and include any name of coffee of each extraction method. .

It is a front view of the coffee drink manufacturing apparatus of a present Example. It is a side view of the coffee drink manufacturing apparatus of FIG. It is an internal block diagram of the coffee drink manufacturing apparatus of FIG.

Explanation of symbols

1 Coffee beverage production equipment 1A Drip coffee extraction unit (sprinkled coffee extraction unit)
1B Espresso coffee extraction unit (Pressure extraction type coffee extraction unit)
2 Coffee Liquid Nozzle 3 Milk Foam Nozzle 6 Main Body 10 Hot Water Tank 12 Pump 13 Espresso Extraction Mechanism 15 Espresso Side Solenoid Valve 16 Espresso Side Hot Water Supply Piping 26 Controller 31 Drip Side Solenoid Valve 41 Sprinkler 48, 49 Water Supply Solenoid Valve 51 Water Supply Pipe 52 Electric heater (electric heater for hot water tank)
53 Water level switch 61 Milk former

Claims (2)

In a coffee beverage production apparatus that extracts coffee liquid from coffee raw material powder,
A sprinkling-type coffee extraction unit that extracts coffee liquid by spraying hot water from a sprinkler on the coffee raw material powder,
A pressure extraction type coffee extraction unit that pressurizes and supplies hot water to the coffee raw material powder to extract a coffee liquid;
A hot water tank that has a heater and generates hot water at a temperature suitable for coffee liquid extraction;
An apparatus for producing a coffee beverage, comprising: conveying means for conveying hot water in the hot water tank to the sprinkled coffee extraction unit and the pressurized extraction coffee extraction unit.   The conveying means selects a pump for pumping hot water in the hot water tank, and hot water pumped by the pump is selected as either the sprinkling coffee extraction unit or the pressure extraction type coffee extraction unit. 2. The coffee beverage production apparatus according to claim 1, further comprising a flow path switching means for supplying the coffee beverage.

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