JP2007167300A - Drink extracting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drink extracting apparatus which eliminates the occurrence of defects such as steam generated by hot water proceeds into a stock chute causing powder fixing/accumulating inside the stock chute or the powder of grained beans sucked together with steam from an exhaust opening attaching on and clogging an exhaust filter. <P>SOLUTION: An extracting container 41 is made in a tubular shape with opening on top and bottom end sides. A constricted section 41b between a top end opening 41a and a bottom end opening 41c is formed in a drum shape and the inner radius is expanded and open from the constricted section 41b towards both the ends. A steam suction opening 41e is provided on a side wall 41d of the extracting container 41 for sucking and exhausting from an exhausting opening 41f steam generated from a mixture of grained beans and hot water supplied into the extracting container 41. A powder attaching plate 42 is mounted at a position opposite to the steam suction opening 41e on to which as much powder of the grained beans sucked together with steam attached as possible to eliminate clogging of a stock chute 43. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a beverage extraction apparatus that supplies ground beans and hot water obtained by grinding coffee beans to an extraction container and extracts coffee beverages by stirring with air blown into the mixture.

  For example, vending machines and beverage dispensers that sell coffee beverages extracted from ground coffee beans are provided with a beverage extraction device in the machine. As this type of beverage extraction apparatus, an apparatus including an extraction container, a filter, a filter block, and a valve mechanism is generally used. The extraction container is called a so-called cylinder, and has a shape in which both upper and lower end surfaces are opened. Above the extraction container, a raw material chute for supplying ground beans obtained by drawing coffee beans supplied from the coffee bean canister to the extraction container and hot water stored in a hot water tank and heated to a predetermined temperature by a heater. A hot water inlet for supplying steam and an exhaust port for exhausting the steam in the extraction container are disposed, and the vapor sucked from the exhaust port by the exhaust fan is removed from the powder containing fine powder by the exhaust filter. Exhausted. A filter is arrange | positioned in the aspect which obstruct | occludes the lower end opening of an extraction container, for example, the thing made from paper is applied. The filter block is a bottomed cylindrical container attached to the lower end opening of the extraction container with the filter interposed therebetween, and has a passage for supplying air to the inner bottom portion and a delivery passage for the extracted beverage. The valve mechanism opens and closes the upper opening of the extraction container.

  In this beverage extraction device, first, the lower end opening of the extraction container is attached to the filter block with the filter interposed therebetween, and then the raw material chute provided at the upper end opening of the extraction container with the valve mechanism opening the upper opening of the extraction container. The ground beans are charged, hot water stored in a hot water tank and heated by a heater is supplied from the hot water inlet to make a mixture of ground beans and hot water. When air is blown into this mixture, It is forcibly agitated by the erupting wave, and the coffee component oozes from the ground beans into the hot water. Steam generated from the hot water supplied to the extraction container rises in the extraction container and is sucked and exhausted from the exhaust port. Thereafter, the valve mechanism closes the upper opening of the extraction container and supplies air to the upper part of the mixture in the extraction container from this state. As a result, the coffee beverage filtered by the filter is poured from the filter block to the cup through the delivery passage by the pressure of the air supplied to the extraction container.

  When the extraction of the coffee beverage is finished, the supply of air is stopped, and then the extraction container is separated from the filter block, and the filter is sent out to discard the beverage extraction basket, and is ready for the next beverage extraction ( For example, see Patent Document 1).

  In the beverage extraction device having such a configuration, steam generated from the hot water supplied to the extraction container may enter the raw material chute.

  As a countermeasure against the vapor intrusion into the raw material chute, a shutter mechanism that opens and closes at the raw material chute outlet is provided (for example, see Patent Document 2), or the raw material chute itself is configured to be movable so that the hot water is supplied when the raw material chute is supplied. There is also a method for preventing steam from entering the raw material chute by separating from the hot water (for example, see Patent Document 3).

  However, parts for a shutter mechanism and a raw material chute moving mechanism are required and the cost is high. Further, it is inevitable that the sliding part touches the powder or vapor, so that the operation may be unstable. Furthermore, even if the shutter mechanism or the raw material chute moving mechanism prevents the vapor from entering the raw material chute, since the vapor itself is generated, it may have an adverse effect on the peripheral parts.

In addition, as a measure against fine powder, there is a method of providing fine powder removal means upstream of the raw material chute, and removing the fine powder by attaching and depositing it by generating static electricity on the inner wall side face. Since a large-scale apparatus for removing fine powder is required, the cost becomes high, and the removed fine powder needs to be periodically cleaned, which increases the burden of maintenance (for example, see Patent Document 4). ).
Japanese Patent Laid-Open No. 11-4769 JP 2001-67547 A JP 2002-157463 A JP-A-6-20149

  In such a beverage extraction device, when steam generated from the hot water supplied to the extraction container enters the raw chute, dew is generated on the inner wall, and the ground bean powder tends to adhere to the inner chute inner wall. If the powder sticks and accumulates due to repeated drying and clogs the raw material chute, there is a risk of causing the problem of destabilizing the supply of ground beans. In addition, since the ground beans contain fine powder that adheres to the raw material chute due to static electricity, it is necessary to prevent this fine powder from adhering. Further, the ground bean powder sucked together with the steam from the steam exhaust port adheres to the exhaust filter and causes clogging.

  In view of the above circumstances, the present invention relates to a beverage extraction apparatus for extracting beverage by blowing air into a mixture of ground beans and hot water supplied to an extraction container, and steam generated from hot water enters a raw material chute. Beverage extraction eliminates problems such as powder sticking / depositing in the raw chute and ground bean powder sucked together with steam from the exhaust outlet adheres to the exhaust filter and causes clogging An object is to provide an apparatus.

In order to achieve the above object, a beverage extraction device according to claim 1 of the present invention includes an extraction container, a filter, and a filter block for extracting a coffee beverage from ground coffee beans, and has a lower end opening of the extraction container. Attached to the filter block with a filter in between, the mixture of ground beans and hot water supplied from the upper end opening of the extraction container through the raw material chute is stirred with the air supplied from the filter block to extract coffee, In a beverage extraction device that sends out coffee beverage filtered by a filter,
A steam suction port for sucking steam generated from the hot water and discharging it from the extraction container is provided on a side wall of the extraction container.

Moreover, the beverage extraction apparatus according to claim 2 of the present invention includes an extraction container, a filter, and a filter block for extracting a coffee beverage from ground coffee beans, and the lower end opening of the extraction container is sandwiched by a filter. Coffee that is attached to a block and extracted from the agitated mixture of ground beans and hot water supplied from the upper end opening of the extraction container via a raw chute with the air supplied from the filter block, and filtered through the filter In a beverage extraction device for delivering beverages,
A steam suction port for sucking the steam generated from the hot water and discharging it from the extraction container is provided on the side wall of the extraction container, and a powder adhering plate for attaching the ground bean fine powder is disposed in the vicinity of the steam suction port. It is characterized by that.

  In addition, the beverage extraction device according to claim 3 of the present invention is characterized in that, in claim 2 described above, the powder adhering plate has a lower portion immersed in the mixture of ground beans and hot water. .

  In addition, the beverage extraction device according to claim 4 of the present invention is the above-described claim 2 or 3, wherein the powder adhering plate is provided with a recess, a protrusion or an unevenness on the back surface of the surface facing the vapor suction port. Features.

  A beverage extraction device according to claim 5 of the present invention is the beverage extraction device according to any one of claims 2 to 4, wherein a hot water supply container having a plurality of hot water supply holes is provided above the upper end opening of the extraction container, The powder adhering plate is arranged so that the hot water flowing out from the hot water supply hole flows down the back surface of the surface of the powder adhering plate facing the vapor suction port.

  The beverage extraction device according to claim 6 of the present invention is the beverage extraction apparatus according to any one of claims 2 to 5, wherein the powder adhering plate is above the rinse water surface when the rinse water for cleaning the extraction container is full. A steam hole through which steam generated from the rinse water passes is provided at a position where

  The beverage extraction device according to claim 7 of the present invention is characterized in that, in any of claims 2 to 6, a claw piece is provided on the vapor suction port side of the upper end portion of the vapor hole. .

  According to the invention of claim 1, it is possible to prevent the vapor from entering the raw material chute by directly sucking and discharging the vapor from the vapor suction port of the extraction container, and the ground bean powder adheres to the raw material chute. Can be prevented. Further, by releasing the sucked steam to the outside of the apparatus, it is possible to eliminate the adverse effects of moisture on parts other than the raw material chute.

  According to the second aspect of the present invention, the ground bean fine powder adheres to the powder adhering plate, so that clogging of the material chute and exhaust filter dirt can be reduced, and the maintenance frequency of the exhaust filter is reduced. Can do.

  According to the invention of claim 3, since the lower part of the powder adhering plate is immersed in the mixture during the coffee extraction, the fine powder passes under the powder adhering plate during the extraction and becomes an exhaust filter. Adhesion can be prevented and the maintenance frequency of the exhaust filter can be reduced.

  According to the invention of claim 4, more fine powder can be adhered by providing an appropriate concave, convex or irregular surface on the surface to which the powder is adhered.

  According to the invention of claim 5, the hot water for extracting coffee flows down the surface of the powder adhering plate to which the powder adheres, and the adhering ground beans are allowed to flow for each beverage extraction. Since the ground beans that have flowed into the mixture can be reduced, variation in the amount of ground beans for each beverage extraction can be reduced, and the concentration of the coffee beverage can be kept constant.

  Further, according to the invention of claim 6, since the steam hole is provided above the surface of the rinsing hot water in which the powder adhering plate is immersed, it becomes possible to suck in the steam even during the full water rinse for cleaning the extraction container. It is possible to prevent the vapor from entering the raw material chute during the full water rinse and prevent the ground bean powder from adhering to the raw material chute.

  According to the invention of claim 7, by providing a claw piece for guiding hot water to the upper end of the steam hole, the powder can be adhered to the lower side of the claw piece. Because the surface tension can be transmitted to the lower surface of the nail piece, the powder attached to the lower side of the nail piece can be flowed into the mixture for each beverage extraction, and the coffee beverage is caused by the variation in the amount of ground beans The problem of density variation and maintenance frequency can be solved.

  Exemplary embodiments of a beverage extraction device according to the present invention will be described below in detail with reference to the accompanying drawings. The beverage extraction device exemplified here is provided in a vending machine or a beverage dispenser that pours and sells a coffee beverage extracted from ground coffee beans.

  Based on FIG. 1, the circuit structure of the cup-type drink vending machine 1 which provided the drink extracting device which is embodiment of this invention in the machine is demonstrated.

  The diluent supply circuit 5 is for supplying a diluent such as cold water, carbonated water, and hot water to the cup 3 placed on the bend stage 2, and has a water reservoir 10, a water pump 11, and a water supply valve 12. ing. When the water supply valve 12 is opened, tap water is stored in the water reservoir 10 and is pumped by driving the water pump 11. The water pumped by the water pump 11 is supplied to the cold water circuit 13 or the hot water circuit 14. The water supplied to the cold water circuit 13 is cooled by passing the water cooling coil 16 immersed in the cooling water stored in the cooling water tank 15.

  A water supply valve 17 and a cold water pipe 18 are connected to the water cooling coil 16. A carbonator 19 for supplying carbonated water to the cup 3 is connected to the water supply valve 17. When the water pump 11 is driven to open the water supply valve 17, cold water is supplied to the carbonator 19.

  A chilled water dispensing nozzle 21 is connected to the chilled water pipe 18 via a chilled water valve 20. When the cold water is sold, when the cold water valve 20 is opened by driving the water pump 11, the chilled water dispensing nozzle 21 opens the cup 3. Pour cold water into

  The carbonator 19 is immersed in the cooling water tank 15. Carbonate gas is supplied from the carbon dioxide gas cylinder 22 to the carbonator 19, and the carbon dioxide gas is dissolved in cold water, and the cold water becomes carbonated water. A carbonated water pouring nozzle 24 is connected to the carbonator 19 via a carbonated water valve 23. When the carbonated water valve 23 is opened, the carbonator 19 is pushed out of the carbonator 19 by the pressure of carbon dioxide supplied from the carbon dioxide gas cylinder 22. Carbonated water is poured into the cup 3.

  In addition, a plurality of syrup cooling coils 32 are immersed in the cooling water tank 15, and a plurality of syrup containers 30 each storing various syrups as a syrup beverage stock solution are connected via a syrup selling device 36. It is. Carbon dioxide gas is supplied to each syrup container 30 from a carbon dioxide cylinder 22, and a syrup pouring nozzle 34 is connected to the syrup cooling coil 32 via a syrup valve 33. When the syrup valve 33 is opened, the syrup stored in the syrup container 30 is pushed out by the pressure of carbon dioxide gas supplied from the carbon dioxide gas cylinder 22, and the syrup flowing from the syrup selling device 36 through the syrup cooling coil 32 is It is cooled and poured out into the cup 3 from the syrup pouring nozzle 34.

  The ice making machine 6 has an ice making unit and an ice storage, ice is made from water supplied from the water reservoir 10 and stored in the ice storage, and ice stored in the ice storage when selling iced beverages. Is supplied to the cup 3 through an ice duct (not shown).

  The water supplied to the hot water circuit 14 through the water supply valve 25 is stored in the hot water tank 60 and heated by a heater (not shown) in the hot water tank 60 to become hot water. The hot water tank 60 is provided with a plurality of hot water valves 61. Each hot water valve 61 is connected to the mixing balls 63 and 68 or the beverage extraction device 40 by the hot water pipe line 62. By opening the hot water valve 61, the mixing ball 63, 68 or the Hot water is supplied to the beverage extraction device 40.

  The mixing ball 63 has a raw material canister 64 for supplying a powder raw material. In the mixing ball 63, the powder raw material supplied from the raw material canister 64 and hot water supplied from the hot water tank 60 are stirred to form a hot beverage, and then poured out from the hot beverage dispensing nozzle 65 into the cup 3.

  The beverage extractor 40 extracts coffee by stirring a mixture of ground beans obtained by grinding the coffee beans supplied from the coffee bean canister 66 with the mill 67 and hot water supplied from the hot water tank 60, and filters the mixture. The coffee beverage filtered in step 1 is sent out, and the extracted rice cake is discarded in the coffee bucket 71.

  A mixing ball 68 is connected to the beverage extraction device 40. The mixing ball 68 includes a raw material canister 69 that supplies powder raw materials such as sugar and cream. After the powder raw material and the coffee beverage supplied from the raw material canister 69 are stirred, the mixing ball 68 is poured into the cup 3 from the coffee beverage dispensing nozzle 70. Put out.

  2 and 3 are conceptual diagrams showing a beverage extraction device according to an embodiment of the present invention. FIG. 2 is a side sectional view of the beverage extraction device 40, and FIG. 3 is an arrow for the beverage extraction device 40 of FIG. It is the sectional side view seen in the AA direction.

  The extraction container 41 has a cylindrical shape with both upper and lower end surfaces opened, and a constricted portion 41b between the upper end opening 41a and the lower end opening 41c is formed in a drum shape, and the inner diameter increases from the constricted portion 41b toward both ends. Expanded and opened. A steam suction port 41e is provided in the side wall 41d of the extraction container 41, and when an exhaust fan (not shown) is driven, steam generated from the hot water supplied to the extraction container 41 is sucked and discharged from the discharge port 41f. Passes through the exhaust filter and is exhausted outside the machine. A powder adhering plate 42 provided with dimples (concaves) or protrusions 42a on the surface thereof is disposed at a position relative to the steam inlet 41e, and a larger amount of ground bean powder sucked together with steam is attached to the raw material chute. 43 is less clogged and dirt on the exhaust filter, and the maintenance frequency of the exhaust filter is reduced. A steam hole 42b through which steam generated from the rinse water passes is provided between the steam suction port 41e and the discharge port 41f, and a claw piece 42c is provided at the upper end of the steam hole 42b.

  Above the extraction container 41, a raw material chute 43 for feeding ground beans obtained by grinding coffee beans supplied from the coffee bean canister 66 with a mill 67 into the extraction container 41, and a hot water supply container 44 having a plurality of hot water supply holes 44 a. And a cover 45 covering the hot water supply container 44 is mounted. The hot water supply container 44 opens the hot water valve 61 to open hot water that is stored in the hot water tank 60 and heated by a heater (for example, 95 ° C.). When supplied via the pipe line 62, the supplied hot water flows down into the extraction container 41 from the hot water supply hole 44a.

  The filter block 46 has a bottomed cylindrical shape having a beverage receiving port 46a at the upper end, is supported by an elevating means 47 so as to be movable up and down, and is separated from the extraction container 41 when moving downward. On the other hand, when it moves upward, it fits into the extraction container 41 with the filter 48 in between, and closes the lower end opening 41c. In addition, an air supply and delivery pipe line 51 is communicated and connected to a mixing ball 68 (see FIG. 1). A tube pump (air supply, negative pressure generating means) 52 is provided in the middle of the air supply / delivery pipeline 51. When the tube pump 52 rotates in one direction (for example, counterclockwise direction), air is passed to the filter block 46. And the mixture of ground beans and hot water is stirred and rotated in the other direction (for example, clockwise direction), a negative pressure is generated, and the filtered beverage after passing through the filter 48 is aired through the filter block 46. It is supplied to the mixing ball 68 from the supply / delivery pipe line 51.

  The filter 48 is a filter paper made of paper wound in a roll shape, and is sequentially drawn out between the extraction container 41 and the filter block 46, and the mixture of ground beans and hot water is filtered under a negative pressure. And make a coffee drink.

  As shown in, for example, JP-A-10-141237, the tube pump 52 includes a tube guide in which an arc surface is formed on an inner peripheral surface, and a rotor in which a plurality of rollers are arranged at equal intervals on the periphery. When the rotor is rotated by placing the tube along the arc surface formed on the inner peripheral surface of the tube guide so that it is sandwiched between the rollers and rotating the rotor, the roller will squeeze the tube It is a pump that works to move the contents in the direction of movement of the roller.

  4-7 is a conceptual diagram for demonstrating extraction operation | movement of the drink extraction apparatus 40 mentioned above. Hereinafter, the extraction operation of the beverage extraction device 40 will be described with reference to FIGS. 1 to 7 as appropriate.

  First, when the cup-type beverage vending machine is in a sales standby state, the extraction container 41 is in a state of being separated from the filter block 46 and the filter 48 as shown in FIGS. Further, in this sales standby state, the hot water valve 61 is kept closed.

  When a coin is inserted by the user or the like from the above-described sales standby state and an arbitrary product selection button is pressed, a signal is output from a control unit (not shown) to drive the lifting / lowering means 47, as shown in FIG. Thus, the filter block 46 is fitted to the lower end opening 41 c of the extraction container 41 with the filter 48 interposed therebetween, and the coffee beans supplied from the coffee bean canister 66 are ground by the mill 67 to obtain ground beans from the raw material chute 43. The inside of the extraction container 41 is opened, the hot water valve 61 is opened and hot water is supplied to the hot water supply container 44 to flow down from the hot water supply hole 44a. The ground beans that have flowed down are flown for each beverage extraction, and the maintenance frequency of the powder-attached plate 42 is reduced. In addition, since the ground beans that have flowed into the mixture, the variation in the amount of ground beans for each beverage extraction can be reduced, and the concentration of the coffee beverage can be kept constant. Further, since the claw piece 42c for guiding the hot water is provided at the upper end of the steam hole 42b, the powder can be adhered to the lower side of the claw piece 42c, and the hot water guided to the claw piece 42c is clawed by the surface tension. Since the lower surface of the piece 42c can be transmitted, the powder adhered to the lower side of the claw piece 42c can be flowed into the mixture every time the beverage is extracted, and the coffee beverage concentration variation is caused by the variation in the amount of ground beans. And the problem of maintenance frequency can be solved.

  When the supplied hot water reaches a preset amount, the controller closes the hot water valve 61 and drives the tube pump 52 as shown in FIG. 5 (in the embodiment, it is driven to rotate counterclockwise in the figure). Then, air is supplied from the filter block 46 to the inside of the extraction container 41 through the air supply / delivery pipe 51, thereby stirring the mixture of ground beans and hot water stored in the extraction container 41. As a result, flavor and umami are extracted from the ground beans into hot water, and a coffee beverage is generated inside the extraction container 41. The steam generated from the supplied hot water is directly sucked and discharged from the steam suction port 41e of the extraction container 41 to prevent the steam from entering the raw material chute 43, and the ground bean powder adheres to the raw material chute 43. Can be prevented. Further, by releasing the sucked vapor to the outside of the machine, it is possible to eliminate the adverse effects on the parts other than the raw material chute 43 due to moisture. Moreover, since the lower part of the powder adhesion plate 42 is immersed in the mixture during the coffee extraction, it is possible to prevent fine powder from passing through the lower side of the powder adhesion plate and adhering to the exhaust filter during the extraction. The maintenance frequency of the exhaust filter can be reduced.

  Thereafter, as shown in FIG. 6, when the tube pump 52 is driven (in the embodiment, it is driven to rotate in the clockwise direction in the drawing), the inside of the beverage receiving port 46a of the filter block 46 has a negative pressure, and the control unit becomes negative pressure. The coffee beverage generated inside 41 passes through the filter 48 and is filtered, and is supplied from the filter block 46 to the mixing bowl 68 through the air supply and delivery line 51.

  When the extraction of the coffee beverage is completed, the elevating means 47 is driven to move the filter block 46 downward, and a predetermined amount of the filter 48 is fed out, and the used filter 48 and the extracted soot adhering thereto are discarded in the straw bucket 71. . Further, the waste liquid valve 53 is opened, and the waste liquid is discharged into the soot bucket 71.

  When the coffee beverage extraction operation is repeated a predetermined number of times in this manner, as shown in FIG. 7, the filter block 46 is fitted to the lower end opening 41c of the extraction container 41 with the filter 48 interposed therebetween, and the hot water valve 61 is opened. Then, hot water is supplied to the hot water supply container 44 and is caused to flow down from the hot water supply hole 44a, and rinsing for cleaning the extraction container 41 is performed. Since the steam hole 42b is provided above the surface of the rinse water even during the full water rinse, the steam can be sucked and exhausted from the discharge port 41f even during the full water rinse for cleaning the extraction container 41. Can be prevented from entering the material chute 43, and ground beans can be prevented from adhering to the material chute 43.

  As described above, in the beverage extraction apparatus according to the present embodiment, steam generated from hot water enters the raw material chute, and the powder adheres and accumulates in the raw material chute or is sucked together with the vapor from the exhaust port. It is possible to realize a beverage extraction device that eliminates the occurrence of defects such as clogging of ground beans powder that adheres to the exhaust filter.

It is a conceptual diagram explaining the circuit structure of the cup-type drink vending machine to which the drink extracting device which is embodiment of this invention is applied. It is a sectional side view of the beverage extraction apparatus which is embodiment of this invention. It is a sectional side view of the drink extracting device shown in FIG. It is a conceptual diagram which shows the extraction operation | movement of the drink extracting device shown in FIG. It is a conceptual diagram which shows the extraction operation | movement of the drink extracting device shown in FIG. It is a conceptual diagram which shows the extraction operation | movement of the drink extracting device shown in FIG. It is a conceptual diagram which shows the extraction operation | movement of the drink extracting device shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cup-type drink vending machine 40 Beverage extraction apparatus 41 Extraction container 41e Vapor suction inlet 42 Powder adhesion plate 42a Concavity and convexity 42b Steam hole 42c Claw piece 43 Raw material chute 44 Hot water supply container 46 Filter block 48 Filter 51 Air supply, delivery pipe line 52 Tube pump 60 Hot water tank 61 Hot water valve 62 Hot water pipeline 66 Coffee bean canister 67 Mil

Claims (7)

An extraction container for extracting a coffee beverage from ground coffee beans, a filter, and a filter block, the lower end opening of the extraction container being attached to the filter block with the filter interposed therebetween, and the upper end of the extraction container via a raw chute In the beverage extraction device for extracting the coffee by stirring the mixture of ground beans and hot water supplied from the opening with the air supplied from the filter block and sending the coffee beverage filtered by the filter,
A beverage extraction apparatus, wherein a vapor suction port for sucking vapor generated from the hot water and discharging it from the extraction container is provided on a side wall of the extraction container. An extraction container for extracting a coffee beverage from ground coffee beans, a filter, and a filter block, the lower end opening of the extraction container being attached to the filter block with the filter interposed therebetween, and the upper end of the extraction container via a raw chute In the beverage extraction device for extracting the coffee by stirring the mixture of ground beans and hot water supplied from the opening with the air supplied from the filter block and sending the coffee beverage filtered by the filter,
A steam suction port for sucking the steam generated from the hot water and discharging it from the extraction container is provided on the side wall of the extraction container, and a powder adhering plate for attaching the ground bean fine powder is disposed in the vicinity of the steam suction port. A beverage extraction device characterized by the above.   The beverage extraction device according to claim 2, wherein a lower part of the powder adhering plate is immersed in the mixture of ground beans and hot water.   The beverage extraction device according to claim 2 or 3, wherein the powder adhering plate is provided with a recess, a protrusion or an unevenness on the back surface of the surface facing the vapor suction port.   A hot water supply container having a plurality of hot water supply holes is provided above the upper opening of the extraction container so that the hot water flowing out of the hot water supply holes flows down the back surface of the surface of the powder adhering plate to the vapor suction port. The beverage extraction apparatus according to any one of claims 2 to 4, further comprising a powder adhering plate.   The said powder adhesion board provided with the steam hole which allows the vapor | steam which generate | occur | produces from the said rinse water to pass in the position which becomes above the rinse water surface when the rinse water which wash | cleans the said extraction container is full. The drink extraction apparatus in any one of thru | or 5.   The beverage extraction device according to any one of claims 2 to 6, wherein a claw piece is provided on the vapor suction port side of the upper end portion of the vapor hole.

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