JPH114765A - Beverage extraction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely abandon extraction dregs inside a beverage extraction chamber by dropping the extraction dregs onto a paper filter at the time of elevating a cylindrical member by a driving means after beverage extraction is ended. SOLUTION: When beverage extraction time set by a timer is ended, a control part normally drives an extraction motor 24, transmits the driving torque through a reduction gear 25 to output shafts 25a and 25b and normally rotates a cylinder cam 27A and a valve cam 27B. By normally rotating the cylinder cam 27A and the valve cam 27B, a cylinder driving plate 28A and a valve driving plate 28B are elevated and a cylinder 20 and a valve 23 are elevated to a highest position. Thus, the cylinder 20 is rapidly elevated, an extraction chamber 20d which is the cylindrical member provided on the cylinder 20 is elevated and the extraction dregs inside the extraction chamber 20d are dropped onto the paper filter 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage extracting apparatus applied to a cup-type vending machine for extracting coffee, black tea, oolong tea, green tea and the like from beverage raw materials and selling them in cups, and more particularly, to slag in a beverage extracting chamber. The present invention relates to a beverage extracting device that ensures the disposal of the beverage and does not impair the flavor of the beverage to be sold next.

[0002]

2. Description of the Related Art As a conventional beverage extracting device, there is one disclosed in Japanese Utility Model Laid-Open No. 61-118526, for example.
FIG. 19 shows this beverage extraction device 100, which is supported so as to be able to move up and down, and a cylinder 10 for stirring and discharging a mixture of beverage ingredients such as coffee powder and hot water supplied from above.
1, and below the cylinder 101, the cylinder 10
A filter 102 for filtering the mixture discharged from 1;
A beverage container 104 provided with a rubber packing 103 for receiving the beverage extracted by the filtration of the filter 102, a beverage supply tube 105 connected to the beverage container 104 and supplying the beverage to the cup side, and a press for opening and closing the beverage supply tube 105 Cam mechanism 106 including plate 106a and cam 106b
And a control unit (not shown) for controlling each unit of the apparatus 100
It is comprised including.

[0003] A cylinder 101 is provided with a supply port 1 provided above.
A stirring chamber 101b in which a step of stirring the beverage raw material supplied from No. 01a and hot water is performed, and an outlet 1 provided with a mixture below.
Extraction chamber 1 in which the beverage extraction process is performed by discharging from beverage 01c
01d is communicated with the communication port 101e.
The communication port 101e is opened and closed by a valve 107, and an air pump 10
An air pipe 109 for introducing pressurized air from 8 is connected.

[0004] The beverage brewing apparatus 100 configured as described above.
In, when a sales signal is input to the control unit, the control unit drives an extraction drive motor (not shown). As shown in FIG. 19, the cylinder 101 is lowered from the standby position P by the extraction drive motor, and the lower end of the cylinder 101 contacts the beverage receiver 104. Next, the beverage material and hot water are supplied to the supply port 10.
When supplied from 1a, the control unit sends pressurized air from the air pump 108 to the stirring chamber 101b via the air pipe 109, the extraction chamber 101d, and the communication port 101e. The mixture of the beverage ingredient and hot water in the stirring chamber 101b is supplied to the air pump 1
Stirred by pressurized air from 08. When the mixture is sufficiently stirred, the control unit stops driving the air pump 108. The mixture in the stirring chamber 101b flows to the extraction chamber 101d through the communication port 101e. Next, the control unit operates as shown in FIG.
As shown at 0, the extraction drive motor is driven again. The valve 107 is raised by the extraction drive motor and the communication port 10 is raised.
Close 1e. The control unit sends pressurized air from the air pump 108 to the extraction chamber 101d via the air pipe 109.
The mixture in the extraction chamber 101d is pressure-fed to the filter 102 side by pressurized air, and is filtered by the filter 102.
The control unit drives a supply motor (not shown) to
6b is rotated by a predetermined angle, the pressing of the beverage supply tube 105 by the pressing plate 106a is released, and the beverage supply tube 105 is opened.
The beverage filtered by the filter 102 is supplied to a beverage supply pipe 105.
To the cup side. Next, the control unit moves the cylinder 101 to the waste disposal position P '
The slag is removed from the inside of the filter 1 and the slag remaining on the filter 102 is discarded by sliding a slag removing member (not shown). When the beverage brewing operation is completed in this way, the control unit drives the brewing drive motor to raise the cylinder 101, and also raises the valve 107 to return to the standby position P where the communication port 101e is opened.

[0005]

However, according to the conventional beverage brewing apparatus, even if beverage extraction is completed and the cylinder is moved upward to take the slag disposal position, the extraction slag forms the extraction chamber of the cylinder. Because it may adhere to the inner wall,
There is a problem that the extraction residue cannot be reliably removed and discarded.
If the extraction residue remains in the extraction chamber, the components of the extraction residue remaining in the extraction of the next sale beverage are mixed, and the flavor of the next sale beverage may be impaired.

[0006] On the other hand, there is a type in which a taper is formed at a discharge port of a cylinder, or an inner surface below a cylinder is roughened to make it easier to remove extraction slag. When the amount of the raw material used increases, it becomes difficult to remove the raw material, and the above-described problem occurs. In particular, recently, a method has been adopted in which several cups of beverages are extracted at a time in anticipation of the planned number of sales and stored in tanks and sold,
It is a big issue to reliably dispose of the extracted slag.

[0007] Accordingly, an object of the present invention is to provide a beverage extraction apparatus which ensures the disposal of the extracted slag in the beverage extraction chamber and does not impair the flavor of the beverage to be sold next.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in consideration of the above problem. A cylindrical member forming a beverage extraction chamber by being positioned on the paper filter, and moving the cylindrical member up and down on the paper filter so that the opening is in contact with the paper filter and separated from the paper filter. A beverage extracting apparatus comprising a driving means for displacing between positions, and a slag dropping means for dropping slag onto a paper filter when beverage extraction is completed and the cylindrical member is raised by the driving means. is there.

The slag dropping means is preferably comprised of a cam which is included in the driving means and raises the cylindrical member rapidly.

The slag dropping means is preferably constituted by an extruding rod for extruding slag out of the tubular member.

The slag dropping means is preferably constituted by a lever which gives an external impact to the cylindrical member.

It is preferable that the slag dropping means is constituted by a lever which gives an external impact to the extraction slag remaining in the tubular member.

[0013]

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

FIG. 1 shows a beverage brewing apparatus according to a first embodiment of the present invention. The beverage extraction device 1 includes an extraction unit 2 that extracts a beverage from a mixture of powdered raw material such as coffee powder and hot water, a disposal unit 4 that discards slag and the like, and pressurized air to each unit of the device 1. It has an air pump 5 for feeding.

The extraction unit 2 is supported by a guide rail (not shown) so as to be vertically movable, and is a cylinder 20 that agitates a mixture of powdered raw material and hot water supplied from above and discharges the mixture downward.
A paper filter 21 disposed below the cylinder 20 and filtering the mixture discharged from the cylinder 20;
And a beverage receiver 22 for receiving the beverage extracted by the filtration of the paper filter 21.

The cylinder 20 is provided with a supply port 20 provided above.
a mixing chamber 20 for receiving the powder raw material and hot water supplied from a.
b, and a discharge port 2 provided below with a mixture of powdered raw material and hot water
Extraction chamber 20 in which the process of extracting beverages discharged from Oc is performed.
d, and the mixing chamber 20b and the extraction chamber 20d
and e. The communication port 20e is opened and closed by a valve 23, and is connected to the extraction chamber 20e.
d has an inlet 20f for introducing pressurized air from the air pump 5.

The paper filter 21 includes a rotatable shaft 2.
1A is set in the form of a roll, and is configured to be pulled out to the left in FIG. 1 by driving of a disposal motor 40 of the disposal unit 4 described later. The remaining amount of the paper filter 21 is detected by a filter detecting lever 21B whose base end is rotatably supported and whose middle or distal end is always in contact with the roll-shaped paper filter 21; The detection operation is performed by a filter remaining amount detection sensor 21C such as a micro switch that outputs a detection signal indicating that the paper filter 21 has run out to the control unit 6 described below and provides an alarm output or the like by rotating the detection lever 21B and performing a switching operation. .

The beverage receiver 22 has an opening 22a in the upper part, and a cylinder 20 (discharge port 20c) around the opening 22a.
Is provided with a rubber packing 22A for preventing the mixture from leaking when contacted, a roller 22B for guiding the travel of the paper filter 21 at an end portion, and a beverage supply pipe for supplying a beverage to the cup side at a lower portion. 22C and a waste pipe 22D for discharging the beverage. In addition, the beverage supply pipe 22C
Is provided with a beverage supply solenoid valve 53.

The extraction unit 2 has an extraction motor 24 and output shafts 25a and 25b projecting from both sides, respectively.
4, a speed reducer 25 for reducing the rotation speed to a predetermined rotation speed, a support plate 26 having one end of one output shaft 25a supported by a bearing 26a, a cylinder cam 27A and a valve cam 27B fixed to the one output shaft 25a. And a cylinder driving plate 28A for driving the cylinder 20, and a valve 23
And a cylinder driving plate 28B
A, a cylinder cam follower 29A attached to the valve driving plate 28B, a locking member 28a attached to the cylinder driving plate 28A, and a locking member 28b attached to the valve driving plate 28B. Both ends are respectively locked, and the cylinder drive plate 28A and the valve drive plate 28B are drawn toward each other to cause the cylinder cam follower 29A and the valve cam follower 2
A tension coil spring 30 for bringing the cylinder 9B into contact with the cylinder cam 27A and the valve cam 27B;
Connecting members 3 for connecting the cylinder driving plate 28A
1A, 31B, 31C and the valve 23 with the pin 3
A lever 32 rotatably connected by 2a; a connecting member 33 attached to the valve driving plate 28B and rotatably connecting the lever 32 by a pin 32b;
2, a tension coil spring 34 having both ends locked to the rear end side and a locking member 28c attached to the valve drive plate 28B. The extraction unit 2 includes an output shaft 25
A series of steps of the agitating step, the extracting step, and the slag disposal step are completed by the rotation of the output shaft a, 25b and the output shaft 41a respectively.

On the other output shaft 25b side of the speed reducer 25,
A process detection mechanism for detecting the progress of each process is provided. That is, on the other output shaft 25b of the speed reducer 25,
First, second and third process detection plates 35A, 35B, 3
5C is attached, and the rotational positions of the first, second, and third process detection plates 35A, 35B, 35C are detected around the first, second, and third process detection plates 35A, 35B, 35C (for example, , Second, and third process detection sensors 36A, 36, such as photo sensors that are turned off by light shielding).
B and 36C are arranged.

The air pump 5 is connected to an inlet 20f of the extraction chamber 20d and an air pipe 52 communicating with the beverage receiver 22. The air pipe 52 is connected to the inlet 20f of the extraction chamber 20d.
, An upper air solenoid valve 50 is provided before the beverage receiver 22, and a lower air solenoid valve 51 is provided before the beverage receiver 22.

FIG. 2 is a sectional view taken along line AA of FIG. The cylinder cam 27A and the valve cam 27B are provided with a key 25c.
The cam surfaces of the cylinder cam 27A and the valve cam 27B have a shape that provides a cam radius necessary for displacing the cylinder 20 and the valve 23 to predetermined positions according to each process. And stepped portions 27a and 27b whose cam radius is sharply reduced are formed at positions corresponding to the scrap disposal step on the cam surface of the cylinder cam 27A.

FIG. 3 is a perspective view of the process detecting mechanism. First
In the process detection plate 35A, a protrusion 35a is formed at two locations over about 90 °, and the second process detection plate 35B has
Protrusions 35a are formed in four places at about 70 °, and protrusions 35a are formed in one place on the third process detection plate 35C at about 180 °.

FIG. 4 is a perspective view of a main part of the disposal unit 4.
The disposal unit 4 includes a disposal motor 40 and a reduction gear 41 that reduces the rotation speed of the disposal motor 40 to a predetermined rotation speed.
The waste pipe open detection plate 42A and the waste pipe close detection plate 42B attached to the output shaft 41a of the speed reducer 41, and the waste pipe 22D are shielded (for example, off) by the projection 42a of the waste pipe open detection plate 42A. A closed state of the waste pipe 22D is indicated by a waste pipe open detection sensor 43A such as a photosensor that outputs an OFF signal indicating an open state (standby state) and light blocking (for example, off) by the protrusion 42a of the waste pipe close detection plate 42B. A waste pipe closing detection sensor 43B such as a photo sensor that outputs an OFF signal, and a pair of filter feed rollers 44 that are attached to the output shaft 41a with a notch 44a on the circumference and feed the paper filter 21 by a fixed length. And a pair of guide rollers 4 for pressing the paper filter 21 against the pair of filter feed rollers 44 by a spring (not shown).
5, a pressing plate 46, which is rotatably supported by a support shaft 46a and presses and closes the waste pipe 22D between a fixed plate (see FIG. 1) 47 and the like, and is attached to the output shaft 41a. And a pressing cam 48 having a projection 48a on the circumference for rotating the pressing plate 46.

FIG. 5 shows a control system of the beverage extracting apparatus 1.
The beverage brewing apparatus 1 has a control unit 6 for controlling each part of the present apparatus 1, and the control unit 6 includes the waste pipe open detection sensor 43A, the waste pipe close detection sensor 43B, the first, second, and 3, the process detection sensors 36A, 36B, 36C, the filter remaining amount detection sensor 21C, the air pump 5, the upper air solenoid valve 50, the lower air solenoid valve 51, the beverage supply solenoid valve 53, the extraction motor 24, and the disposal motor 40 are respectively connected. And
Further, a main controller 7 for controlling sales of the extracted beverage is connected.

The main control unit 7 outputs a sales signal to the control unit 6 every time the extracted beverage is sold. When the sales signal is input from the main control unit 7, the control unit 6 outputs the extraction motor 24, the disposal motor 40 And the air pump 5 to control beverage extraction,
That is, a series of steps including a stirring step, an extraction step, and a slag disposal step are performed.

Next, the operation of the beverage extracting device 1 will be described with reference to FIGS. FIG. 6 is a diagram showing output signals of the first, second and third process detection sensors 36A, 36B and 36C. FIGS. 7 to 13 are diagrams showing the operation of the present apparatus 1. FIG. 7 (a) shows the position of the main part (cylinder 20, valve 13, etc.), and FIG. 7 (b) shows the waste pipe open detection plate. 4
FIG. 2C shows the positions of a waste pipe closing detection plate 42B and a filter feed roller 44, and FIG.
FIG. 7D shows the positions of 7A and the valve cam 27B, and FIG.
Are the first, second and third process detection plates 35A, 35B,
It is a figure which shows the position of 35C.

[0028] In (1) a standby state (see FIG. 7) the standby state, the main part of the apparatus 1 is in the standby position P ₁ shown in FIG. 6, in the state shown in FIG. That is, the first, second and third process detection sensors 36A, 36A
6B and 36C are turned on, and the waste pipe open detection sensor 43A
Is off, and the waste pipe closing detection sensor 43B is on. There is a slight gap between the filter feed roller 44 and the guide roller 45 so that the paper filter 21 does not move at all even if the filter feed roller 44 rotates. The pressing plate 46 is in contact with the pressing cam 48 by the elastic force of the waste pipe 22D.

(2) Stirring Step (See FIGS. 8 and 9) When the sales signal is input from the main control section 7, the control section 6
When the second process detection sensor 36B is on, the first and third
Step detection sensor 36A, based on the ON 36C, performs a moving operation from the standby position P ₁ to the stirring position P _2. That is, the control unit 6 drives the disposal motor 40 to rotate in the normal direction (drive in which the output shaft 41a rotates to the left in FIG. 8A).
The drive torque of the disposal motor 40 is transmitted to the output shaft 41a via the speed reducer 41, and the output shaft 41a rotates forward by about 60 ° (left rotation in FIG. 8 (a)), as shown in FIG. 8 (a). As described above, when the protrusion 48a of the pressing cam 48 presses the pressing plate 46, the waste pipe 22D is closed between the pressing plate 46 and the fixed plate 47. The waste pipe closed detection sensor 43B is shielded from light by the protrusion 42a of the waste pipe closed detection plate 42B, and outputs an OFF signal to the control unit 6. The control unit 6 stops driving the disposal motor 40 based on the OFF signal from the disposal pipe closed detection sensor 43B.

Subsequently, the control unit 6 drives the extraction motor 24 to rotate in the normal direction (drive in which the output shaft 25b rotates to the left in FIG. 9D). The driving torque of the extraction motor 24 is transmitted to the output shafts 25a and 25b via the speed reducer 25,
When the cylinder cam 27A and the valve cam 27B rotate forward as shown in FIG. 9C, the cylinder driving plate 28a and 25b rotate forward (to the left in FIG. 9D).
A and the valve drive plate 28B descend. When the cylinder driving plate 28A is lowered, the plurality of connecting members 31A, 31A
B, 31C, the cylinder 20 descends, and the extraction chamber 20
The lower end of d presses the paper filter 21 against the beverage receiver 22. On the other hand, when the valve driving plate 28B is lowered, the valve 32 is also lowered via the connecting member 33 and the lever 32. The first process detection sensor 36A includes a first process detection plate 35A.
, And outputs an off signal to the control unit 6. Subsequently, the second process detection sensor 36B outputs an ON signal to the control unit 6. The control unit 6 controls the second process detection sensor 3
When 6B is ON, the driving of the extraction motor 24 is stopped based on the OFF of the first process detection sensor 36A. This device 1
Main part of the reaches the stirring position P ₂ shown in FIG. 6, a state shown in FIG. In the state shown in FIG. 9, as shown in FIG. 9D, the second and third process detection sensors 36B, 36C
Are the protrusions 35 of the second and third process detection plates 35B and 35C.
a, the ON signal is output to the control unit 6.
Output to each.

The control unit 6 includes a second process detection sensor 36B
Is ON, the stirring process is performed based on the OFF of the first process detection sensor 36A and the ON of the third process detection sensor 36C. That is, the control unit 6 outputs a supply request signal of the powder raw material and the hot water to the main control unit 7. Under the control of the main controller 7, the powder raw material and the hot water are supplied to the supply port 20a of the mixing chamber 20b. The control unit 6 adjusts the supply of the powder raw material and hot water,
The beverage supply solenoid valve 53 is closed, and the lower air solenoid valve 51 is further closed.
Is opened, and the air pump 5 is driven. The air pump 5 sends pressurized air to the beverage receiver 22 via the air pipe 52.
The pressurized air passes through the paper filter 21 and flows into the extraction chamber 20d. When the pressurized air passes through the mixture in the extraction chamber 20d, the flow of the bubbles acts to agitate the mixture. By supplying pressurized air from below the paper filter 21, the elution of the powder raw material component into the hot water is promoted, and the beverage can be extracted in a short time.

(3) Extraction Step (See FIG. 10) When the stirring time set by the timer elapses, the control section 6 drives the extraction motor 24 to rotate forward. The driving torque of the extraction motor 24 is output via the reduction gear 25 to the output shafts 25a, 25b.
And the cylinder cam 27A and the valve cam 27B rotate forward. As shown in FIG.
Since the cam radius of A does not change, the cylinder 20 does not move up and down, but since the cam radius of the valve cam 27B increases, the valve 23 rises and closes the communication port 20e as shown in FIG. The third process detection sensor 36C includes:
The light is shielded by the third process detection plate 35 </ b> C and outputs an off signal to the control unit 6. Subsequently, the second process detection sensor 36
B outputs an ON signal to the control unit 6. When the second process detection sensor 36B is on, the control unit 6 stops driving the extraction motor 24 based on the off of the third process detection sensor 36C. The main part of the device 1 reaches the extraction position P ₃ shown in FIG. 6, a state shown in FIG. 10. In the state shown in FIG. 10, the first and second process detection sensors 36A and 36B are turned on, as shown in FIG.

The control unit 6 includes a second process detection sensor 36B
Is ON, the extraction process is performed based on ON of the first process detection sensor 36A and OFF of the third process detection sensor 36C. That is, the control unit 6 opens the upper air electromagnetic valve 50, closes the lower air electromagnetic valve 51, opens the beverage supply electromagnetic valve 53, drives the air pump 5, and sends the pressurized air from the air pump 5 through the air pipe 52. The water is supplied from the inlet 20f above the extraction chamber 20d. The mixture in the extraction chamber 20 d is pumped downward by pressurized air from the air pump 5 and filtered by the paper filter 21. The beverage filtered by the paper filter 21 is supplied to the cup via the beverage receiver 22 and the beverage supply pipe 22C. Extraction room 20d
, The pressure in the extraction chamber 20d is increased and the mixture is pushed down to the paper filter 21 side, so that the mixture is separated into beverages and scum in a short time, and the filtration can be performed efficiently. it can.

(4) Slag disposal process (see FIGS. 11 and 12) When the extraction time set by the timer elapses, the control unit 6
Drives the extraction motor 24 to rotate forward. As a result, the driving torque of the extraction motor 24 is reduced via the reduction gear 25 to the output shaft 2.
5a and 25b, and the cylinder cam 27A and the valve cam 27B rotate forward, thereby causing the cylinder driving plate 28 to rotate.
A and the valve drive plate 28B rise, and the cylinder 20 and the valve 23 rise to the highest position. Here, when the cylinder cam follower 29A passes through the step portions 27a and 27b of the cylinder cam 27A, it is rapidly pulled up by the tension coil spring 30, whereby the cylinder 30 rises rapidly. At this time, an impact is applied to the cylinder 20,
The slag 7 in the extraction chamber 20d falls. The first and third process detection sensors 36A and 36C are provided on the first and third process detection plates 3.
The light is shielded by 5A and 35C and outputs an off signal to the control unit 6. Subsequently, the second process detection sensor 36B outputs an ON signal to the control unit 6. When the second process detection sensor 36B is on, the control unit 6 stops driving the extraction motor 24 based on the off of the first and third process detection sensors 36A and 36C. The main part of the device 1 reaches the dregs discarding position P ₄ shown in FIG. 6, a state shown in FIG. 11. FIG.
In this state, the second process detection sensor 36B is turned on, and the residue 7 remains on the paper filter 21.

The control unit 6 includes a second process detection sensor 36B
Is ON, the first and third process detection sensors 36A, 36A
The slag disposal process is performed based on the turning off of 6C. That is, the control unit 6 drives the disposal motor 40 to rotate forward. The drive torque of the disposal motor 40 is transmitted to the output shaft 41a via the speed reducer 41, the output shaft 41a rotates forward, and the filter feed roller 44 rotates to draw out the paper filter 21. When the slag 7 on the paper filter 21 passes through the roller 22B, the slag 7 breaks off as shown by the imaginary line in FIG. 12A, separates from the paper filter 21, and falls into a waste bucket (not shown). The waste pipe open detection sensor 43A is shielded from light by the waste pipe open detection plate 42A and outputs an OFF signal to the control unit 6.
Output to The control unit 6 stops driving the disposal motor 40 based on the OFF signal from the disposal pipe open detection sensor 43A. The main part of the device 1 is in the state shown in FIG.

(5) Return Operation to Standby State When the slag disposal process is completed, the control unit 6
And the disposal motor 40 is driven to rotate forward. The main part of the device 1 returns to the standby state shown in FIG. Thereafter, each time a sales signal is input to the control unit 6, the above operations (1) to (5) are repeated.

According to the above-described embodiment, since the cam radius of the cylinder cam 27A for moving the cylinder 20 up and down is formed at a position corresponding to the slag disposal step, the cam radius is sharply reduced. 20 rises sharply and an impact is applied to the cylinder 20, and the extraction chamber 20d
Can be dropped. As a result, it is possible to surely dispose of the slag, and to prevent the flavor of the beverage to be sold from being adversely affected.

FIG. 13 shows a beverage brewing apparatus 1 according to a second embodiment of the present invention. In this figure, the same parts as those in FIG. 1 are denoted by the same reference numerals and symbols, and therefore, duplicate description will be omitted. This beverage brewing apparatus 1 includes a cylinder cam 2
The T-shaped push rod 60 is provided at the tip of the valve 23 in the extraction chamber 20d without forming a portion where the cam radius suddenly decreases on the cam surface of 7A.

Next, the operation of the beverage extracting apparatus 1 will be described with reference to FIGS. 14 shows a standby state, FIG. 15 shows a stirring step, FIG. 16 shows a state after extraction in an extraction step, and FIG. 17 shows a slag disposal step. As in the embodiment, each step is sequentially performed, and in each step, the same operation as in the first embodiment is performed. However, the operation from the extraction step to the slag disposal step is performed as follows.

When the extraction time set by the timer elapses in the extraction step of FIG.
4 is driven forward. The drive torque of the extraction motor 24 is transmitted to the output shafts 25a and 25b via the speed reducer 25, the cylinder cam 27A and the valve cam 27B rotate forward, and the cylinder drive plate 28A and the valve drive plate 28B rise, and FIG.
As shown in FIG. 7, the cylinder 20 and the valve 23 rise to the highest position. At this time, the valve 23 has a rising amount that does not hinder the waste 7 from being sent on the paper filter 21 and discarded.
Since the amount of rise of the cylinder 20 is very large with respect to the amount of rise of
Pushes out the slag 7 that has clogged with the discharge port 20c of the cylinder 20 and rises together with the slag 7. When the cylinder 20 moves up in this manner, the first, second, and third process detection sensors 36A to 36C detect the first process based on the detection results.
In the same manner as in the embodiment, the slag disposal step is performed, and the slag 7 is discarded.

According to the second embodiment, the slag 7 in the extraction chamber 20d of the cylinder 20 is dropped by the push rod 60 when the cylinder 20 is lifted after the extraction step. The slag 7 can be surely discarded, and the same effect as in the first embodiment can be obtained. The push rod 60 may be configured integrally with the valve 23, or may be separately connected with a screw or the like.

FIG. 18 shows a beverage brewing apparatus 1 according to a third embodiment of the present invention. In this figure, the same parts as those of the first and second embodiments are denoted by the same reference numerals and symbols, and the duplicate description will be omitted. The beverage brewing apparatus includes a lever 71 supported by a link pin 70 near an outer surface of a lower end of a brewing chamber 20d of a cylinder 20, and a spring for pulling one end of the lever 71 upward to urge the lever 71 counterclockwise. 72, and a solenoid 73 for turning one end of the lever 71 clockwise by pulling one end of the lever 71 downward by being energized and excited at a predetermined timing.

Next, the operation of the beverage extracting device 1 will be described. Here, only the operation from the extraction step to the waste disposal step will be described.

When the extraction time set by the timer elapses in the extraction step, the control unit 6 drives the extraction motor 24 to rotate forward. The driving torque of the extraction motor 24 is transmitted to the output shafts 25a and 25b via the speed reducer 25, and the cylinder cam 27A and the valve cam 27B rotate forward, so that the cylinder driving plate 2
8A and the valve drive plate 28B rise, and as shown in FIG. 17, the cylinder 20 and the valve 23 rise to the highest position. At this time, the control unit 6 causes the solenoid 73 to be energized to excite the solenoid 73. Solenoid 7
When 3 is excited, one end of the lever 71 is pulled downward against the urging force of the spring 72, whereby the lever 71 rotates clockwise and the other end collides below the extraction chamber 20d of the cylinder 20. I do. For this reason, cylinder 2
Zero is shocked. This operation is repeated by repeating the energization and de-energization of the solenoid 73,
When the cylinder 20 is raised, the push rod 60 is
The slag 7 clogged with the discharge port 20c is dropped. When the cylinder 20 rises in this way,
First, second, and third process detection sensors 36A-36
Based on the detection result of C, the slag disposal step is performed in the same manner as in the first embodiment, and the slag 7 is disposed.

According to the third embodiment, when the extraction process is completed and the cylinder 20 is raised, the lever 71 collides with the outer periphery of the lower end of the extraction chamber 20d of the cylinder 20 to give an external impact. Therefore, the slag 7 can be reliably discarded, and the same effect as in the first and second embodiments can be obtained. In addition, the support position of the lever 71 is lowered, and the other end of the lever 71 is jumped into the extraction chamber 20d of the cylinder 20 to directly impact the slag 7 in the extraction chamber 20d to drop the slag 7. May be.

Further, the first to third embodiments may be appropriately changed.
When combined, disposal of the slag 7 can be further ensured.

[0047]

As described above, according to the beverage extraction device of the present invention, when beverage extraction is completed and the cylindrical member is displaced to a position away from the paper filter by the driving means, the extraction residue is placed on the paper filter. Since the slag dropping means for dropping the slag is provided, the extracted slag in the beverage extraction chamber can be securely discarded, and the flavor of the beverage to be sold next can be prevented from being spoiled.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a beverage extraction device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of a process detection mechanism according to the first embodiment.

FIG. 4 is a perspective view of a main part of a disposal unit according to the first embodiment.

FIG. 5 is a block diagram showing a control system according to the first embodiment.

FIG. 6 is an explanatory diagram showing output signals of first, second, and third process detection sensors according to the first embodiment.

FIG. 7 is an explanatory diagram illustrating a standby state according to the first embodiment.

FIG. 8 is an explanatory diagram showing a closed state of the waste pipe according to the first embodiment.

FIG. 9 is an explanatory view showing a stirring step according to the first embodiment.

FIG. 10 is an explanatory diagram showing an extraction step according to the first embodiment.

FIG. 11 is an explanatory view showing a slag disposal process according to the first embodiment.

FIG. 12 is an explanatory diagram showing an end state of the slag disposal process according to the first embodiment.

FIG. 13 is an explanatory view showing a beverage extraction device according to a second embodiment of the present invention.

FIG. 14 is an explanatory diagram illustrating a standby state according to the second embodiment.

FIG. 15 is an explanatory view showing a stirring step according to the second embodiment.

FIG. 16 is an explanatory diagram showing an end state of an extraction step according to the second embodiment.

FIG. 17 is an explanatory view showing a slag disposal process according to the second embodiment.

FIG. 18 is an explanatory diagram showing a beverage extraction device according to a third embodiment of the present invention.

FIG. 19 is an explanatory view showing a stirring step of the conventional beverage extraction device.

FIG. 20 is an explanatory view showing an extraction process of a conventional beverage extraction device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Beverage extraction apparatus 2 Extraction part 3 Air pump 4 Waste treatment part 5 Air pump 6 Control part 20 Cylinder 20a Supply port 20b Mixing chamber 20c Discharge port 20d Extraction chamber 20e Communication port 20f Inlet 21 Paper filter 21A shaft 21B Filter detection lever 21C Filter residue Quantity detection sensor 22 Beverage receiver 22A Rubber packing 22B Roller 22C Beverage supply pipe 22D Waste pipe 22a Opening 23 Valve 24 Extraction motor 25 Reducer 25a, 25b Output shaft 25c Key 26 Support plate 26a Bearing 27A Cylinder cam 27B Valve cam 27a, 27b Step 28A Cylinder drive plate 28B Valve drive plate 28a, 28b Locking member 29A Cylinder cam follower 29B Valve cam follower 30 Extension coil spring 31A, 31B, 31C Connecting member 2 lever 32a, 32b pin 33 connecting member 34 extension coil spring 40 disposal motor 41a output shaft 35A first process detection plate 35B second process detection plate 35C third process detection plate 35a protrusion 36A first process detection sensor 36B Second process detection sensor 36C Third process detection sensor 40 Disposal motor 41 Reduction gear 41a Output shaft 42A Waste pipe open detection plate 42B Waste pipe close detection plate 42a Projection 43A Waste pipe open detection sensor 43B Waste pipe closed detection Sensor 44 Filter feed roller 45 Guide roller 46 Pressing plate 46a Support shaft 47 Fixing plate 48 Pressing cam 48a Projection 50 Upper air solenoid valve 51 Lower air solenoid valve 52 Air pipe 53 Beverage supply solenoid valve 60 Push rod 70 Link pin 71 Lever 72 Spring 73 solenoid

Claims (5)

[Claims] 1. A tubular member having an opening at a lower end and forming a beverage extraction chamber by being positioned on a paper filter; and said tubular member being moved up and down on said paper filter to open said opening. A drive unit for displacing between a position in contact with the paper filter and a position away from the paper filter; and, when beverage extraction is completed and the cylindrical member is raised by the drive unit, the extraction residue is dropped onto the paper filter. A beverage extraction device comprising slag dropping means. 2. The beverage brewing apparatus according to claim 1, wherein the slag dropping means is included in the driving means, and is constituted by a cam for rapidly raising the tubular member. 3. The beverage brewing apparatus according to claim 1, wherein the slag dropping means is constituted by an extruding rod for extruding the slag out of the tubular member. 4. The beverage brewing apparatus according to claim 1, wherein said slag dropping means is constituted by a lever which gives an external impact to said cylindrical member. 5. The beverage brewing apparatus according to claim 1, wherein the slag dropping means is constituted by a lever for externally applying an impact to the slag remaining in the tubular member.