JP2002191507A - Producing device of coffee beverage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a producing device of coffee beverage capable of supplying a proper amount of ground beans precisely in accordance with coffee extracting operation and producing the coffee beverage of a fixed quality by preventing the variation in the supply quantity of the ground beans. SOLUTION: A ground beans canister 50 having storing parts 51L and 51R provided in accordance with the kind of the ground beans supplied from a coffee mill 80 is provided to supply the ground beans from either of the part 51L or the part 51R or both of them in accordance with the extraction operation of coffee beverage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing coffee beverages, and more particularly to a coffee extracting operation which can control the supply amount of ground coffee beans with high accuracy and uses a mixture of a plurality of types of ground beans. The present invention relates to a coffee beverage manufacturing device capable of extracting coffee beverage of stable quality.

[0002]

2. Description of the Related Art Conventionally, a coffee beverage producing apparatus for extracting a coffee beverage by extracting a required amount of coffee beans by a coffee mill to form ground beans during coffee extraction and supplying the ground beans to a coffee extractor. For example, as disclosed in
There is one disclosed in JP-A-7-110216.

[0003] This coffee beverage manufacturing apparatus has a disk-shaped rotating member provided inside a measuring chamber to which ground beans are supplied, and provided with blades at predetermined intervals in a circumferential direction. Into a coffee mill and pulverized to supply the ground beans formed in the peripheral wall of the measuring chamber and the space formed between the two blades to measure the ground beans. The coffee is supplied to the coffee brewing machine based on the rotation of the rotating member.

[0004]

However, according to the conventional coffee beverage manufacturing apparatus, a certain amount of ground beans is measured based on the peripheral wall of the measuring chamber and the area of the space formed between the two blades. , For example, the type of coffee beans,
It is not possible to finely adjust the size of the ground bean on the basis of fluctuations in extraction conditions due to environmental changes such as the type of coffee beverage to be sold, temperature and humidity. In addition, since the supply amount of ground beans fluctuates due to individual differences in the water content and size of the coffee beans put into the coffee mill, stable quality, coffee beverages in an extracted state cannot be supplied, and the extraction condition adjustment range. However, there is a problem that a coffee brewing machine having a small size causes problems such as poor extraction.

Accordingly, it is an object of the present invention to prevent fluctuations in the supply amount of ground beans, to supply an appropriate amount of ground beans with high accuracy in accordance with the coffee extraction operation, and to produce a coffee beverage of a constant quality. An object of the present invention is to provide an apparatus for producing a coffee beverage.

[0006]

According to the present invention, in order to achieve the above object, coffee beans supplied from a coffee bean accommodating section are ground by a coffee mill and supplied as ground beans to a coffee extractor for extraction. An apparatus for producing a coffee beverage for supplying a coffee beverage, comprising: a ground bean storage unit having a supply member for storing the ground beans and supplying the coffee extractor with an amount of the ground beans based on a coffee extracting operation; The present invention provides a coffee beverage manufacturing apparatus having control means for driving the coffee mill to execute a replenishing operation of the ground bean to the ground bean storage unit when the storage amount of the ground is insufficient.

[0007] According to the above-described apparatus for producing a coffee beverage, the ground bean storage unit stores the ground beans in an amount required for the operation of extracting the coffee beverage, and when the storage amount is insufficient, the ground beans ground by the coffee mill. Will be replenished. The supply of the ground beans to the coffee extractor is provided by a supply member. In this way, it is possible to prevent a change in the supply amount of the ground beans due to individual differences of the coffee beans, and to supply an appropriate amount of the ground beans according to the extraction conditions with high accuracy.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for producing a coffee beverage according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an apparatus for producing a coffee beverage according to an embodiment of the present invention. A cistern 2 connected to an intake pipe 1, a float switch 2A for outputting a water level lowering signal of the cis turn 2, and an intake pipe 1 Intake valve 1 provided in
A, a hot water tank 10 for storing hot water obtained by heating drinking water supplied from a cistern 2 via a pipe 3A, and a pipe 3A
An electromagnetic valve 20, a pump 60 fixed to the outer periphery of the hot water tank 10 and supplying hot water under pressure, and a pump 6
0, a bypass pipe 60A connected to the hot water tank 10, a valve 60B for returning hot water in the pump 60 to the hot water tank 10 by opening the bypass pipe 60A, a coffee bean storage unit 40 for storing coffee beans, A coffee mill 80 that pulverizes coffee beans supplied from the bean container 40 through the bean chute 80A to a predetermined particle size, and a coffee mill provided at the lower portion of the coffee bean container 40 and rotates the coffee beans to the coffee mill 80. Coffee bean auger (bean supply means) 43 to be sent out, and rotating shaft 43 of coffee bean auger 43
A, a coffee bean auger drive motor 44 for transmitting a rotational torque to the A through a speed reducer 45, a box-shaped ground bean canister (ground bean storage unit) 50 for receiving and storing the ground beans ground by the coffee mill 80; , A ground bean shoot 80 for dropping ground beans supplied from a ground bean canister 50 downward
B, a coffee extractor 30 that extracts coffee beans by extracting the ground beans supplied via the ground bean shoot 80B with hot water, and a beverage supply that supplies the coffee beverage extracted by the coffee extractor 30 to the cup 9. Tube 30A and pump 60
6A for supplying hot water to the coffee extractor 30 from the container, a pressure sensor 25 provided in the pipe 6A for outputting a pressure signal corresponding to the pressure in the pipe, and a flow rate corresponding to the flow rate of the hot water provided in the pipe 6A A flow sensor 19 for outputting a signal, a check valve 21 provided on the pipe 6A for preventing backflow of hot water to the upstream side, and branching from the pipe 6A upstream of the check valve 21 and connecting to the hot water tank 10 Pipe 6B, an extraction hot water valve 22 provided in the pipe 6B, and a sack bucket 1 for receiving solid ground bean extract slag (extract slag A) generated in the coffee extractor 30.
7, a drain bucket 18 arranged at the lower part of the cup 9,
A sugar container 11 for storing sugar, a cream container 12A for storing cream ingredients, a cream container 12B for storing cream ingredients for cappuccino, and sugar and cream received via a chute 13 and dissolved in a predetermined amount of hot water And
Mixing bowl 14 for supplying to cup 9 via supply pipe 14A, and pipe 15 for supplying hot water from hot water tank 10 to mixing bowl 14 arranged at the lower part of the cream container.
A, a hot water valve 23A provided on a pipe 15A, a pipe 15B for supplying hot water from a hot water tank 10 to a mixing bowl 14 disposed below the sugar container 11, a hot water valve 23B provided on a pipe 15B, 6A pipe downstream of valve 21
And a pipe 6C for discharging the waste liquid to the drainage bucket 18 via the hot water valve 24.

A hot water tank 10 is provided with a heater H for heating drinking water.
A power supply unit 10A for supplying a current to the power supply ₁ , a float switch 10B for detecting a change in the water level of the hot water in the tank and outputting a water level lowering signal when the water level falls below a predetermined water level, Hot water temperature sensor 10 that outputs a temperature detection signal
D. Water amount of the hot water tank 10 is 5 liters output of the heater H ₁ is kept at about 97 ° C. water temperature of the hot water tank 10 with 1 kw. The check valve 21 is formed by housing a ball formed of fluoro rubber and a spring for urging the ball in a predetermined direction in a housing. In the present embodiment, the flow direction of hot water from hot water tank 10 to coffee extractor 30 is set to the forward direction, and the ball is urged in the upstream direction by a spring.

The pump 60 holds the hot water stored in the hot water tank 10 in a space formed between the side wall of the set of gears and the inner wall of the main body, and moves the hot water along the inner wall of the main body toward the outflow portion to maintain a constant pressure. This is a gear pump that continuously delivers a volume of hot water. The amount of hot water delivered can be adjusted by controlling the rotational speed of a set of gears. One set of gears is rotated by driving a shaft of one of the gears with a motor.

The coffee brewing machine 30 includes a coffee mill 80.
32, to which the ground beans are supplied via a ground bean chute 80B, a piston drive motor 33 for raising and lowering a piston 39 in the cylinder 32, a piston drive motor 33
Transmitting section 3 for transmitting the driving torque of the piston to the piston 39
4, a motor 35 driven based on the extracting operation to tilt the cylinder unit D to a predetermined angle via a gear 36, and a cylinder 32 when the cylinder unit D tilts based on the rotation of the motor 35. Has a cap 37 to be inserted into. The cap 37 supplies a predetermined high-temperature hot water into the cylinder 32 via the pipe 6A when extracting the coffee beverage. The coffee beverage extracted by the cylinder 32 is supplied to the cup 9 via the beverage supply pipe 30A.

In the cup-type vending machine having the above-described structure, for the sake of simplicity, the cup supply unit for supplying the cup 9, the power supply unit for supplying the current to the pump 60, and the current for the mill motor of the coffee mill 80 are supplied. The configuration of a power supply unit to be supplied, a stirrer to stir the beverage in the cup 9, a pipe for cold beverage, a raw material storage unit, and the like are not shown.

FIG. 2 is a front view from the coffee bean accommodating section 40 to the ground bean canister 50, and shows two coffee bean accommodating sections 40A for accommodating different types of coffee beans.
And 40B are provided, and the coffee bean accommodating section 40 is provided.
A and 40B each have a lid 40a which is opened and closed when replenishing coffee beans. The bean chute 80A guides the coffee beans supplied from the coffee bean storage unit 40A or 40B to the coffee mill 80. Ground bean canister 5
0 has storage units 51L and 51R for storing ground beans corresponding to the coffee bean storage units 40A and 40B, and the storage unit 51L crushes the coffee beans supplied from the coffee bean storage unit 40A to the coffee mill 80. Store the ground beans. The storage unit 51R is provided with a coffee bean storage unit 40B.
Crushed coffee beans supplied to the coffee mill 80 are stored. In the ground bean canister 50,
Distribution of the ground beans from the coffee mill 80 to the storage unit 51L or 51R is performed by a distributor described later.

FIG. 3 shows the coffee mill 80 and the ground bean canister 50 shown in FIG. 2. The ground bean canister 50 shown in FIG. 3A is partially open at the front for ease of explanation. This canned bean canister 50 is
Light guide member 52 disposed between optical sensors 52L, 52M, and 52R for detecting sold-out of ground beans stored in 1L and 51R and storage units 51L and 51R.
C and ground beans ground in the coffee mill 80 in the storage unit 5
It has a distributor 53 for distributing to 1L or 51R, and a solenoid 54 for driving the distributor 53. Optical sensor 52L,
52M and 52R are composed of a light receiving element 52A and a light emitting element 52B.

Optical sensors 52L, 52M and 52R
Transmits light emitted from the light emitting element 52B to the light receiving element 52A.
And detects the sold-out of the ground beans stored in the storage units 51L and 51R based on the ON signal output when the light is received. When the ground beans stored in the storage portion 51L or 51R decrease to a level below the height level at which the light guide member 52C is provided, the light emitted from the light emitting element 52B is adjacent to the optical sensor via the light guide member 52C. Light receiving element 52A
Incident on. The storage unit 51L detects sold out of the ground beans by receiving the light emitted from the light emitting element 52B of the optical sensor 52L by the light receiving element 52A of the optical sensor 52M. The storage unit 51R detects sold out of the ground beans by receiving the light emitted from the light emitting element 52B of the optical sensor 52M by the light receiving element 52A of the optical sensor 52R.

The distributor 53 includes a switching plate 53A for switching the supply direction according to the type of the ground beans and the like, and a switching plate 53A.
Shaft 53B for rotatably supporting the motor, and a switching plate 53A
And a chute 53 a provided in the distributor 53. In the figure, the switching plate 53A is set in a direction to supply the ground beans to the storage unit 51L.

FIG. 3B shows the distributor 53 and the solenoid 54 from above, and includes a link 53D fixed to the drive shaft 53B, a spring member 53E attached to one end of the link 53D, and a spring member 53E. ON / OFF of the fixing pin 53F fixed to the distributor 53 and the solenoid 54
It has a plunger 54A driven based on the operation, a pin member 54B for attaching a link 53D to the tip of the plunger 54A, and a fixing member 54C for fixing the solenoid 54 in the ground bean canister 50.

FIG. 3C shows the back of the distributor 53.
When the solenoid 54 is OFF, the plunger 54A protrudes from the solenoid 54. Also, the switching plate 53A
Is rotated in the direction of the stopper 53C by the tension of the spring member 53E attached to the link 53D, and is stopped in contact with the stopper 53C.

4A and 4B show the ground bean canister 50 from the side. FIG. 4A shows a state in which the inside of the ground bean canister 50 is partially opened, and FIG. 4B shows a state in which the storage unit 51L is partially opened. The storage unit 51L has an inlet 51 for introducing the ground beans supplied from the distributor 53 into the storage space 51A.
B, a ground bean auger 55 that is provided in the housing space 51A and moves the ground bean to the left in the drawing by rotating in the direction of the arrow, and a grind delivered from the housing space 51A based on the feeding operation of the ground bean auger 55. A supply port 51C for dropping beans downward, and a rotating shaft 55 of a ground bean auger 55
A has a ground bean auger drive motor 56 for transmitting a rotating torque to A via a speed reducer 57, and the accommodation space 51A has a volume capable of accommodating an amount of ground bean capable of extracting coffee about three times. The ground bean auger 55 is provided to be inclined at a predetermined angle with respect to the horizontal direction. In the housing space 51A, a light guide member 52C is provided at a predetermined height position on the side wall, and light emitted from a light emitting element (not shown) of the optical sensor 52L receives a light receiving element of the adjacent optical sensor 52M. (Not shown), the receiving space 51A
It outputs a sold-out signal to the extraction control unit described later, assuming that the ground beans inside are sold out. Further, the inside of the storage section 51R (not shown) is similarly formed.

FIG. 5 shows the control block of the ground bean canister 50, with optical sensors 52L, 52M and 52R.
The extraction control unit 70 that inputs a sold-out signal based on the sold-out of the ground beans from the light-receiving element 52B, and the solenoid 54 and the mill motor 8 that input a driving signal based on the sold-out signal.
1, a drive control unit 71 that supplies electric power to the ground bean auger drive motor 56 and the coffee bean auger drive motor 44. The drive control unit 71 also controls the drive of the motor 35, the piston drive motor 33, the pump 60, and the like of the coffee brewing machine 30 illustrated in FIG.

Hereinafter, the operation of the coffee beverage manufacturing apparatus of the present invention will be described. (A) Initial Operation When the power of the coffee beverage manufacturing device is turned on after the installation of the equipment, since the ground bean is not supplied to the ground bean canister 50, the light receiving elements 5 of the optical sensors 52M and 52R are turned off.
2B outputs a sold-out signal to the extraction control unit 70. The extraction control unit 70 controls the drive control unit 71 based on the sold-out signal.
And outputs a control signal requesting the supply of ground beans. The drive control unit 71 receives the control signal, and
The operation of filling the ground bean into the L and the storage unit 51R is performed.

In the present embodiment, the drive control section 71 first executes the operation of supplying the ground beans to the storage section 51L, and then executes the operation of supplying the ground beans to the storage section 51R. Drive control unit 7
1, the switching plate 53A is connected to the storage 51R as shown in FIG.
When inclined to the side, power is supplied to the coffee bean auger drive motor 44 of the coffee bean storage unit 40A. The coffee bean auger drive motor 44 supplies coffee beans from the coffee bean storage unit 40A to the coffee mill 80 by rotating based on the supply of electric power. The drive control unit 7
1 supplies power to the mill motor 81. Mill motor 8
1 crushes the coffee beans by rotating based on the supply of electric power to form ground beans, and supplies the ground beans to the distributor 53 via the chute portion 53a. The switching plate 53A guides the ground beans supplied to the distributor 53 to the storage unit 51L. The light receiving element 52A of the optical sensor 52M is turned off when light is blocked by the ground beans filled in the storage unit 51L. The extraction control unit 70 outputs a motor drive stop signal to the drive control unit 71 based on the stop of the output of the sold-out signal. The drive control unit 71 stops the coffee bean auger drive motor 44 based on the motor drive stop signal. Drive control unit 71
Stops the energization of the mill motor 81 after a certain time (for example, 5 seconds) has elapsed after the coffee bean auger drive motor 44 is stopped.

FIG. 6 shows a state in which the solenoid 54 is driven to switch the switching plate 53A.
Power is supplied to the solenoid 54. The solenoid 54 is
The plunger 5 is turned on based on the supply of electric power.
4A is driven to the solenoid 54 side as shown in FIG. The switching plate 53A rotates toward the storage section 51L around the drive shaft 53B based on the driving of the plunger 54A. Next, the drive control unit 71 sets the coffee bean storage unit 40B
Is supplied to the coffee bean auger drive motor 44.
The coffee bean auger drive motor 44 supplies coffee beans from the coffee bean storage unit 40B to the coffee mill 80 by rotating based on the supply of electric power. Further, the drive control unit 71 supplies electric power to the mill motor 81. The mill motor 81 rotates based on the supply of electric power to pulverize the coffee beans to form ground beans, and the chute portion 53
A is supplied to the distributor 53 through a. The switching plate 53A is
The ground beans supplied to the distributor 53 are guided to the storage unit 51R. The light receiving element 52A of the optical sensor 52R is
It turns off when light is blocked by the ground beans filled with R. The extraction control unit 70 outputs a motor drive stop signal to the drive control unit 71 based on the stop of the output of the sold-out signal.
The drive control unit 71 stops the coffee bean auger drive motor 44 based on the motor drive stop signal. After the coffee bean auger drive motor 44 is stopped, the drive control unit 71 stops energizing the mill motor 81 after a lapse of a fixed time (for example, 5 seconds). Further, the supply of power to the solenoid 54 is stopped. When the power supply is stopped, the solenoid 54 rotates toward the storage section 51R based on the tension of the spring member 53E, and contacts the stopper 53C. Thus, the storage section 51L and the storage section 51R are filled with the ground beans.

(B) Ground Bean Supply Operation When a purchaser selects a coffee beverage based on coffee beans (hereinafter referred to as coffee beans A) stored in the coffee bean storage unit 40A, the extraction control unit 70 drives The controller 71 causes the coffee beans A to perform a ground bean supply operation. The drive control unit 71 supplies power to the ground bean auger drive motor 56 of the storage unit 51L. Ground bean auger drive motor 56
Rotates the ground bean auger 55 by rotating based on the supply of electric power. The ground bean auger 55 sends out the ground bean from the storage space 51A of the storage unit 51L by rotating in the direction of the arrow shown in FIG.
And supplied to the coffee extractor 30. The drive control unit 71 drives the ground bean auger drive motor 56 for a drive time according to the supply amount of the ground bean.

(C) Coffee Extraction Operation The coffee extraction machine 30 receives the ground bean supplied from the ground bean canister 50 via the ground bean chute 80B into the cylinder 32 of the cylinder unit D which stands by in an upright state. Next, the drive control unit 71 supplies electric power to the motor 35. The motor 35 is supplied with electric power and rotates to transmit a driving force to the gear 36. Cylinder unit D
Is based on the driving force transmitted through the gear 36,
It rotates counterclockwise around 4A and stops in a state of being inclined. Next, the cap 37 is inserted into the cylinder 32 of the cylinder unit D in the inclined state. The cap 37 moves in the insertion direction by transmitting the driving force of the motor 35 via a driving force transmitting member (not shown). Next, the drive control unit 71 controls the piston drive motor 3
3 to supply power. The piston drive motor 33 is supplied with electric power and rotates, thereby moving the piston 39 in the cylinder 32 in the ascending direction. Thereby, the piston 39 cooperates with the cap 37 to compress (tamping) the ground beans contained in the cylinder 32. Next, the drive control unit 71 supplies electric power to the motor of the pump 60. The motor of the pump 60 supplies high-temperature hot water into the cylinder 32 through the pipe 6A by being rotated by being supplied with electric power. Hot water extracts coffee components as it passes through the compressed ground beans to form a coffee beverage. The extracted coffee beverage is supplied to the cup 9 via the beverage supply pipe 30A. The drive control unit 71 determines the type of beverage (containing sugar,
Supplementary materials such as sugar, cream, etc. according to black, cream, etc.) are supplied to the cup 9. The coffee beverage prepared in this way is sold to the buyer.

The drive controller 71 supplies power to the piston drive motor 33 after the end of the extraction operation. The piston drive motor 33 is supplied with electric power and rotates, thereby moving the piston 39 in the cylinder 32 in the ascending direction.
Accordingly, the piston 39 cooperates with the cap 37 to compress and solidify the ground coffee from which coffee has been extracted. The coffee liquid squeezed out during compression is discharged to a drain bucket via a pipe 6C. Next, the drive control unit 71
Power is supplied to the motor 35. The motor 35 transmits a driving force to the gear 36 by rotating based on the supply of electric power. The cap 37 is detached from the cylinder 32 by transmitting the driving force of the motor 35 via a driving force transmitting member (not shown). The drive control unit 71 includes the cap 3
After the cylinder 7 is detached from the cylinder 32, the energization of the motor 35 is stopped to temporarily stop the cap 37. Next, the piston 39 pushes up the extracted slag A obtained by solidifying the ground beans so as to be exposed to the outside of the cylinder 32.
The drive control unit 71 supplies power to the motor 35 again.
The cylinder unit D rotates clockwise about the shaft 34A based on the driving force transmitted via the gear 36, and shifts from the inclined state to the upright state. In the process, the extracted slag A exposed to the outside of the cylinder 32 falls into the slag bucket 17 by being wiped by a wiper (not shown). The drive control unit 71 stops energizing the motor 35 when the cylinder unit D returns to the upright state. In addition, electric power is supplied to the piston drive motor 33. The piston drive motor 33 is supplied with electric power and rotates to move the piston 39 to a lowermost position in the cylinder 32. Thus, a standby state is set.

(D) Ground bean replenishment operation After the ground bean is supplied to the coffee extractor 30, the storage 51
The amount of ground bean L decreases and the light receiving element 5 of the optical sensor 52M
When the sold-out signal is output from 2A, the extraction control unit 70
Outputs a control signal requesting the drive control unit 71 to replenish the ground beans based on the sold-out signal. Drive control unit 71
Supplies electric power to the coffee bean auger drive motor 44 of the coffee bean storage unit 40A. The coffee bean auger drive motor 44 supplies coffee beans from the coffee bean storage unit 40A to the coffee mill 80 by rotating based on the supply of electric power. In addition, the drive control unit 71 controls the mill motor 8
1 to supply power. The mill motor 81 rotates based on the supply of electric power to pulverize the coffee beans to form ground beans, and supplies the ground beans to the distributor 53 via the chute portion 53a. The switching plate 53A guides the ground beans supplied to the distributor 53 to the storage unit 51L. The light receiving element 52A of the optical sensor 52M is turned off when light is blocked by the ground beans. The extraction control unit 70 outputs a motor drive stop signal to the drive control unit 71 based on the stop of the output of the sold-out signal. The drive control unit 71 stops the coffee bean auger drive motor 44 based on the motor drive stop signal. After the coffee bean auger drive motor 44 is stopped, the drive control unit 71 stops the mill motor 8 after a lapse of a predetermined time (for example, 5 seconds).
The energization to 1 is stopped.

When the amount of ground beans in the storage unit 51R decreases and a sold-out signal is output from the light receiving element 52A of the optical sensor 52R, the extraction control unit 70 sends a signal to the drive control unit 71 based on the sold-out signal. And outputs a control signal requesting replenishment. The drive control unit 71 supplies power to the solenoid 54. The solenoid 54 turns on the plunger 54 </ b> A based on the supply of electric power, thereby turning the plunger 54 </ b> A into the solenoid 5.
Drive to the 4 side. The switching plate 53A includes a plunger 54A.
Storage unit 51L with drive shaft 53B as the axis based on the drive of
Rotate to the side. Next, the drive control unit 71 supplies electric power to the coffee bean auger drive motor 44 of the coffee bean storage unit 40B. The coffee bean auger drive motor 44 is rotated based on the supply of electric power to rotate the coffee bean auger 4.
The coffee beans are supplied from 0B to the coffee mill 80. Further, the drive control unit 71 supplies electric power to the mill motor 81. The mill motor 81 rotates based on the supply of electric power to pulverize the coffee beans to form ground beans, and supplies the ground beans to the distributor 53 via the chute portion 53a. The switching plate 53A stores the ground beans supplied to the distributor 53 in the storage unit 51.
Lead to R. The light receiving element 52A of the optical sensor 52R is
It turns off when light is blocked by ground beans. The extraction control unit 70 outputs a motor drive stop signal to the drive control unit 71 based on the stop of the output of the sold-out signal. Drive control unit 71
Stops the coffee bean auger drive motor 44 based on the motor drive stop signal. After the coffee bean auger drive motor 44 is stopped, the drive control unit 71 stops energizing the mill motor 81 after a lapse of a fixed time (for example, 5 seconds).

(E) Simultaneous supply operation of ground beans The coffee bean A and the coffee bean accommodating section 40 are purchased by the purchaser.
When a coffee beverage blended with the coffee beans contained in B (hereinafter, referred to as coffee beans B) is selected, the extraction control unit 70 causes the drive control unit 71 to output the ground coffee beans A and the coffee beans B To supply the ground bean. The drive control unit 71 supplies power to the ground bean auger drive motor 56 of the storage unit 51L. The ground bean auger drive motor 56 rotates the ground bean auger 55 by rotating based on the supply of electric power. The ground bean auger 55 is rotated in the direction of the arrow shown in FIG.
The coffee extractor 3 feeds the ground coffee beans A from the storage space 51A and drops the coffee beans A from the supply port 51C.
Supply 0. At the same time, the drive control unit 71 supplies power to the ground bean auger drive motor 56 of the storage unit 51R. The ground bean auger drive motor 56 rotates the ground bean auger 55 by rotating based on the supply of electric power. The ground bean auger 55 is stored in the storage 51R based on the rotation.
The coffee beans B are sent out from the inside and are dropped from the supply port 51C and supplied to the coffee extractor 30. The coffee extractor 30 performs an operation of extracting a coffee beverage based on the coffee beans A and B supplied as described above.

According to the above-described embodiment, the following operations and effects can be obtained. (A) The amount of ground beans required for the coffee extraction operation is stored in the storage unit 51L and the storage unit 51R, and the ground bean auger 55 is stored.
Since the ground bean canister 50 that supplies ground beans from the storage units 51L and 51R based on the rotation of the ground bean is provided, highly accurate ground beans can be supplied based on the rotation control of the ground bean auger 55, and coffee beans can be supplied. Variations in beverage quality due to variations in paying out coffee beans due to individual differences such as grain size and water content can be prevented. In addition, this makes it possible to supply high-precision ground beans without causing a problem such as poor extraction even in a pressurized extraction coffee extractor such as an espresso machine in which the adjustment range of the extraction condition is small. . In addition, several cups of ground beans stored in the storage units 51L and 51R are supplied when the amount of ground beans is reduced, so that a decrease in the aroma and taste of coffee can be minimized. (B) The ground bean canister 50 stores the ground bean in the storage unit 51.
By providing the distributor 53 having the switching plate 53A for distributing the coffee beans to the L and the storage unit 51R, different types of coffee beans supplied from the plurality of coffee bean storage units can be ground by one coffee mill, and the coffee mill is shared. The cost can be reduced by the conversion. (C) Since the ground bean canister 50 can simultaneously supply different types of ground beans to the coffee extractor 30 from the storage unit 51L and the storage unit 51R, the coffee extraction can be performed by blending the ground beans. The supply amount of the ground beans can be adjusted with high accuracy in accordance with the type of coffee beverage (for example, blend, American, espresso) based on the rotation control of the ground bean auger 55. From this, even in the coffee brewing machine 30 in which the adjustment range of the brewing condition is small, stable coffee brewing according to the type of the coffee beverage can be performed without causing poor brewing and the like. (D) Coffee beans stored in the storage unit 51L and the storage unit 51R are detected by the optical sensor 52, and when the sold-out signal is output, the coffee mill is driven to replenish the ground beans. Can be supplied to the storage unit 51L and the storage unit 51R independently of the coffee extracting operation, and the delay in the sales time of the coffee beverage can be prevented.

In the above-described coffee beverage manufacturing apparatus, the configuration of the ground bean canister 50 provided with the storage units 51L and 51R for storing the ground beans of different types of coffee beans has been described. A grain size adjusting mechanism for adjusting the grain size of the ground beans is provided, and the same type of coffee beans are used to form ground beans of different grain sizes, and the storage unit 5
You may make it store in 1L and 51R. Also,
The storage unit 5 is provided by switching means different from the above-mentioned switching plate.
A configuration in which the ground beans are distributed to 1L and 51R may be provided, and it is possible to provide two or more storage units.

[0033]

As described above, according to the apparatus for producing a coffee beverage of the present invention, the required amount of ground beans for the operation of extracting the coffee beverage is stored, and when the stored quantity is insufficient, the ground coffee is ground by the coffee mill. A ground bean storage unit that replenishes ground beans prevents fluctuations in the amount of ground beans supplied, and can supply an appropriate amount of ground beans with high precision in accordance with the coffee extraction operation, while providing coffee beverages of a certain quality. Can be manufactured.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a coffee beverage manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a front view from a coffee bean accommodating section to a ground bean canister according to the embodiment of the present invention.

3 shows a coffee mill and a ground bean canister according to an embodiment of the present invention, (a) is a partially open front view, (b) is a top view showing a distributor and a solenoid,
(C) is a rear view showing the distributor and the solenoid.

FIG. 4 shows a ground bean canister according to an embodiment of the present invention, wherein (a) is a partially open side view, and (b) is a partially open side view of a storage unit.

FIG. 5 is a control block diagram of a ground bean canister according to the embodiment of the present invention.

6 shows a coffee mill and a ground bean canister according to an embodiment of the present invention, wherein (a) is a partially open front view, (b) is a top view showing a distributor and a solenoid,
(C) is a rear view showing the distributor and the solenoid.

[Explanation of symbols]

1, intake pipe 1A, intake valve 2, cistern 2A, float switch 3A, piping 6A, piping 6B, piping 6C, piping
9, cup 10B, float switch 10A, power supply unit 10, hot water tank 10D hot water temperature sensor 11, sugar container 12A, cream container 12B, cream container 13, chute 14, mixing bowl 14A, supply pipe 15A, pipe 15B, pipe 17,
Slag bucket 18, Drain bucket 19, Flow sensor 20, Solenoid valve
21, check valve 22 extraction hot water valve 23A, hot water valve 23B, hot water valve 2
4, hot water valve 25, pressure sensor 30, coffee extractor 30A, beverage supply pipe 32, cylinder 33, piston drive motor 34, torque transmitting section 34A, shaft 35, motor 36, gear 37, cap 39, piston 40, coffee beans Accommodating section 40a, lid 40A, coffee bean accommodating section 40B, coffee bean accommodating section 43, coffee bean auger 43A, rotating shaft 44, coffee bean auger drive motor 45, reducer 50, coffee bean measuring instrument 50, ground bean canister 51A, Storage space 51B, introduction port 51C, supply port 51L, storage unit 51R, storage unit 52, optical sensor
52A, light receiving element 52B, light emitting element 52C, light guide member 52L, optical sensor 52M, optical sensor 52R, optical sensor 53, distributor 53a, chute 53A, switching plate 53B, drive shaft 53C, stopper 53D, link 53E, Spring member 53F, fixed pin 54, solenoid 54A, plunger 54B, pin member 54C, fixed member 55, bean auger 55A, rotating shaft 56, ground bean auger drive motor 57, reducer 60,
Pump 60A, bypass pipe 60B, valve 70, extraction control unit
71, drive control unit 80, coffee mill 80A, bean chute 80B, ground bean chute 81, mill motor

Claims (5)

[Claims] 1. A coffee beverage manufacturing apparatus for supplying a coffee beverage by crushing coffee beans supplied from a coffee bean accommodating section with a coffee mill and supplying the coffee beans as ground beans to extract the coffee beans. A ground bean storage unit having a supply member for storing beans and supplying the ground coffee in an amount based on the coffee brewing operation to the coffee brewing machine, and driving the coffee mill when the stored amount of the ground bean is insufficient. An apparatus for producing a coffee beverage, comprising: control means for executing an operation of replenishing the ground bean to the ground bean storage unit. 2. The coffee beverage manufacturing apparatus according to claim 1, wherein the ground bean storage unit includes a remaining amount sensor that detects the sold out of the ground bean and outputs a sold out signal. 3. The ground bean storage unit is supplied from a plurality of ground bean storage units corresponding to a plurality of coffee bean storage units provided according to the types of the coffee beans, and the plurality of coffee bean storage units. One coffee mill that pulverizes coffee beans to form a plurality of types of ground beans, and a distributor that distributes the plurality of types of ground beans to the plurality of ground beans storage units for each type. The apparatus for producing a coffee beverage according to claim 1, wherein: 4. The controller according to claim 3, wherein the controller drives the distributor so that the ground beans corresponding to the type of the ground beans storage unit to which the sold-out signal has been output are refilled. An apparatus for producing a coffee beverage according to any one of the preceding claims. 5. The coffee beverage according to claim 3, wherein the control means simultaneously supplies a plurality of types of ground beans from the plurality of ground bean storage units in accordance with the coffee extraction operation. manufacturing device.