JP7365606B2 - beverage extraction equipment - Google Patents

Description

BACKGROUND OF THE INVENTION The present invention relates to a beverage brewing device.

BACKGROUND ART Conventionally, a beverage brewing device is known that includes a cylinder into which raw materials and drinking water are input, and a filter block that is provided below the cylinder and is movable up and down.
In this type of beverage extraction device, the filter block is raised to a position where the cylinder and the filter block are sealed via the paper filter or packing during beverage extraction. Further, after extracting the beverage, the filter block is lowered. The raw material extraction residue remaining on the filter block is then discarded. At this time, extraction residue of the raw material may remain in the cylinder, and this needs to be suppressed.
To suppress this, for example, a technique has been disclosed in which, after beverage extraction, rinsing water is poured into the cylinder while the cylinder and the filter block via a paper filter or packing remain sealed (patented). (See Reference 1).

Japanese Patent Application Publication No. 2010-179087

However, even if rinsing water is poured into the cylinder after beverage extraction with the filter block sealed through a paper filter or packing, the extraction residue of the raw material may remain in the cylinder. There was still room for improvement.
The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a beverage brewing device that can prevent extraction slag from remaining in the cylinder.

In order to achieve the above object, the present invention includes a cylinder into which raw materials and drinking water are input, and a cylinder which is provided below the cylinder and is placed in an elevated position where it comes into contact with the cylinder through a paper filter or packing, or A beverage brewing device comprising: a vertically movable filter block disposed at a lowered position where it does not come into contact with the cylinder; a wash water inlet for introducing wash water into the cylinder; and a control unit, the control unit comprising: The filter block is lowered from the raised position to a temporary stop position located above the lowered position, and the wash water is introduced into the cylinder from the wash water inlet, and the temporary stop position is located at the same position as the cylinder. It is characterized in that the height is such that a portion where the filter block abuts through a paper filter or packing and a space portion where the cylinder and the filter block do not abut each other occur.

In order to lower the filter block to the temporary stop position, most of the brewed slag in the cylinder is lowered together with the filter block. Inside the cylinder, a small amount of extraction slag will remain inside the lower side wall of the cylinder. In this state, washing water is poured into the cylinder, so according to the present invention, a small amount of extraction slag remaining on the inside of the side wall of the cylinder can be discharged onto the filter block with a small amount of washing water. Since the filter block is only lowered to the temporary stop position located above, it is possible to prevent this small amount of cleaning water from leaking out of the cylinder.

A front view of a beverage extraction device according to an embodiment of the present invention Perspective view inside the beverage brewing device Schematic diagram of the inside of the beverage brewing device in standby state Diagram showing the beverage extraction process Diagram showing the beverage extraction process Schematic diagram enlarging a part of Figure 5(F) Flowchart showing the operation of the beverage extraction device

The beverage extraction device according to the first invention includes a cylinder into which raw materials and drinking water are input, and the cylinder is provided below the cylinder and is placed in an elevated position where it abuts the cylinder through a paper filter or packing, or A beverage brewing device comprising: a vertically movable filter block disposed in a lowered position where it does not come into contact with the cylinder; a wash water inlet for introducing wash water into the cylinder; and a control section, the control section comprising: The filter block is lowered from the raised position to a temporary stop position located above the lowered position, and the cleaning water is introduced into the cylinder from the cleaning water input port.
In order to lower the filter block to the temporary stop position, most of the brewed slag in the cylinder is lowered together with the filter block. Inside the cylinder, a small amount of extraction slag will remain inside the lower side wall of the cylinder. In this state, washing water is poured into the cylinder, so according to the present invention, a small amount of extraction slag remaining on the inside of the side wall of the cylinder can be discharged onto the filter block with a small amount of washing water. Since the filter block is only lowered to the temporary stop position located above, it is possible to prevent this cleaning water from leaking out of the cylinder. Since the washing water can be prevented from leaking out of the cylinder, the washing water can be included in the extraction slag slightly remaining inside the side wall of the cylinder, and the extraction slag can be easily separated from the cylinder.

In the beverage extraction device according to a second aspect of the invention, in the first aspect, the temporary stop position is a portion where the cylinder and the filter block contact each other via a paper filter or packing, and a portion where the cylinder and the filter block contact each other via a paper filter or packing. It is characterized by the height at which each of the space portions that do not come into contact with each other occurs.
According to this invention, even when the filter block is lowered to the temporary stop position,
Since cleaning water does not leak from the portion where the cylinder and the filter block abut through the paper filter or packing, leakage of cleaning water to the outside of the cylinder can be further suppressed.

A third aspect of the beverage extraction device according to the first aspect or the second aspect is characterized in that the filter block is arranged in a position where the upper surface of the filter block is inclined compared to the lower surface of the cylinder. .
According to this invention, when the filter block is lowered to a temporary stop position, a portion where the cylinder and the filter block abut through the paper filter or packing, and a space portion where the cylinder and the filter block do not abut, This makes it possible to further suppress leakage of cleaning water to the outside of the cylinder.

The beverage brewing device according to a fourth aspect of the present invention is provided with a tapping mechanism that vibrates the cylinder in the first to third aspects, and the control section is configured to inject the cleaning water into the cylinder from the cleaning water inlet. After this, the cylinder is vibrated by the striking mechanism.
According to this invention, since the cylinder is vibrated by the beating mechanism, it is possible to further suppress the extraction slag from remaining inside the side wall of the cylinder.

A control method for a beverage extraction device according to a fifth aspect of the present invention includes a cylinder into which raw materials and drinking water are introduced, and a raised position which is provided below the cylinder and comes into contact with the cylinder through a paper filter or packing during beverage extraction. A method for controlling a beverage extraction device, comprising: a filter block that can be raised and lowered and placed in a lowered position when the extraction slag of the raw material is being conveyed; and a cleaning water inlet that inputs cleaning water into the cylinder after beverage extraction. After brewing the beverage, the filter block is lowered from the raised position to a temporary stop position located above the lowered position, and the washing water is introduced into the cylinder from the washing water inlet. do.
In order to lower the filter block to the temporary stop position, most of the brewed slag in the cylinder is lowered together with the filter block. Inside the cylinder, a small amount of extraction slag will remain inside the lower side wall of the cylinder. In this state, washing water is poured into the cylinder, so according to the present invention, a small amount of extraction slag remaining on the inside of the side wall of the cylinder can be discharged onto the filter block with a small amount of washing water. Since the filter block is only lowered to the temporary stop position located above, it is possible to prevent this small amount of cleaning water from leaking out of the cylinder. Since the washing water can be prevented from leaking out of the cylinder, the washing water can be included in the extraction slag slightly remaining inside the side wall of the cylinder, and the extraction slag can be easily separated from the cylinder.

Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to this embodiment.

FIG. 1 is a front view of a beverage brewing device 1 according to an embodiment of the present invention. FIG. 2 is a perspective view of the inside of the beverage brewing device 1. FIG. 3 is a schematic diagram of the inside of the beverage brewing device 1 in a standby state.
Based on the front view of the beverage extraction device 1 in FIG. 1, the right side is defined as the right, the left side as the left, the upper side as the upper side, the lower side as the lower side, the back side as the rear, and the near side as the front. Further, the front-rear direction in the beverage extraction device 1 is referred to as the front-back direction, the left-right direction in the beverage extraction device 1 is referred to as the left-right direction, and the up-down direction in the beverage extraction device 1 is referred to as the height direction.

Hereinafter, the configuration of the beverage extraction device 1 according to this embodiment will be explained.
Beverage extraction device 1 according to the present embodiment is a device that extracts coffee beverage by drip. The beverage extraction device 1 is capable of extracting a coffee beverage by dripping it on the filter block 16 via the paper filter 10. After the coffee beverage has been extracted, the paper filter 10 is moved along the transportation path 100 by the transportation section 60. , is accumulated in the storage section 30 provided at the lower part of the beverage brewing device 1.

As shown in FIGS. 1 and 2, the beverage brewing device 1 includes a paper filter accommodating portion 11 at the upper left portion. The paper filter accommodating portion 11 accommodates a paper filter 10 wound into a roll. A filter block 16 is provided on the right side of the paper filter accommodating portion 11 and in the center of the beverage brewing device 1 .

The filter block 16 is equipped with a mechanism that moves up and down.
As shown in FIG. 3, inside the filter block 16, a tapered portion 48 is formed that opens widely upward.
The filter section 18 is provided at the center of the upper surface of the filter block 16, in other words, at the upper end of the tapered section 48. As shown in FIG. 2, a packing 17 is provided around the entire circumference of the filter portion 18 in the circumferential direction.
A discharge port 59 is provided at the lower end of the tapered portion 48 .

A cylinder 21 with an open bottom is provided above the filter block 16.
The cylinder 21 includes a body 26 , a head 28 , and a recess 27 provided between the body 26 and the head 28 . When the filter block 16 is raised, the lower end of the body 26 comes into contact with the filter block 16 through the paper filter 10 and the packing 17, and is in close contact with the filter block 16.
The body portion 26 of the cylinder 21 is supported by support arms 22 at two positions on the left and right. The support arm 22 is fixed to a housing 29 located at the rear inside the beverage brewing device 1 .

The head 28 of the cylinder 21 is covered by a cover member 40. The cover member 40 is fixed to a housing 29 disposed at the rear inside the beverage brewing device 1 .
The cover member 40 includes a main cover 41 having a size that covers the entire head 28 of the cylinder 21 in plan view. Further, the cover member 40 includes a sub-cover 49 which is a separate member from the main cover 41 and is detachable. The sub-cover 49 is provided between the main cover 41 and the head 28 of the cylinder 21, and is slidable along the main cover 41 and is detachable.

The main cover 41 has a raw material input port 43 for inputting ground coffee bean powder, which is the raw material 20 for the coffee beverage, into the cylinder 21, and a hot water input port 44 (washing water input port) for inputting hot water into the cylinder 21. , a steam intake port 45 for drawing steam in the cylinder 21, and a circulation stirring inlet 47 used for circulating and stirring a beverage to extract, for example, a coffee beverage. An upper pipe 71 is connected to the circulation stirring input port 47 .

The hot water inlet 44 is disposed at a position outside the outer periphery of the recess 27 of the cylinder 21 and inside the outer periphery of the cylinder 21 when viewed from above. As a result, the hot water poured into the cylinder 21 from the hot water inlet 44 collides with the head 28 of the cylinder 21, and due to the force of the hot water, it flows around the inside of the side wall of the cylinder 21. descend.

A shutter 160 is provided inside the casing 29 to open and close the raw material input port 43 of the main cover 41 and the raw material input hole (not shown) of the sub-cover 49. The shutter 160 is opened and closed by rotationally driving a shutter drive motor (not shown).

The circulation stirring inlet 47 is provided at the center of the cylinder 21 when viewed from above. Further, the circulation stirring input port 47 is located at the upper part of the cylinder 21.
As a result, the extracted coffee beverage is re-injected into the center of the cylinder 21 in a plan view by using circulation stirring which will be described later. Since the extracted beverage is reinjected into the center of the cylinder 21, the entire beverage inside the cylinder 21 can be efficiently stirred.

In order to deposit the raw material 20 input into the cylinder 21 through the raw material input port 43 at the center of the cylinder 21, the raw material input port 43 may be provided with its lower part facing the center of the cylinder 21. .

Note that the extracted coffee beverage may be re-injected into the raw material 20 accumulated in the cylinder 21. In this case, the circulation stirring inlet 47 may be oriented toward the location where the raw material 20 is deposited within the cylinder.

As shown in FIG. 3, the other end of the upper pipe 71 is connected to the circulation stirring inlet 47. One end of the upper pipe 71 is connected to a beverage serving pipe 80, which will be described later.
The upper pipe 71 includes a circulation pinch 72 . The circulation pinch 72 can open and close the upper pipe 71 and adjust the flow rate. For example, a solenoid valve or the like can be used as the circulation pinch 72.

The beverage brewing device 1 includes a pump 46. This pump 46 is arranged at the lower right of the beverage brewing device 1, as shown in FIGS. 1 and 2.
As shown in FIG. 3, a beverage serving pipe 80 is connected to the pump 46.
Beverage serving piping 80 includes a brewing pinch 82 . The extraction pinch 82 can open and close the beverage supply piping 80 and adjust the flow rate. For example, a solenoid valve or the like can be used as the extraction pinch 82.
One end of the above-mentioned upper pipe 71 is connected to the beverage serving pipe 80 between the pump 46 and the extraction pinch 82 .

The other end of the lower pipe 73 is connected to the pump 46 . One end of the lower pipe 73 is connected to the discharge port 59.
A waste liquid pipe 74 is connected to the lower pipe 73 at its lowest point. The waste liquid piping 74 is equipped with a waste liquid pinch 75 . The waste liquid pinch 75 can open and close the waste liquid pipe 74 and adjust the flow rate. For example, a solenoid valve or the like can be used as the waste liquid pinch 75.

The beverage extraction device 1 includes a first stirring and mixing section 150 .
The first stirring/mixing unit 150 according to the present embodiment includes a cylinder 21, a pump 46 that circulates the coffee beverage extracted in the cylinder 21, a beverage serving pipe 80 connected to the pump 46, and one end of which is a beverage serving pipe. 80 and has the other end disposed above the cylinder 21 , and a lower pipe 73 which has one end connected to the discharge port 59 and the other end connected to the pump 46 .

The pump 46 circulates the coffee beverage extracted through the paper filter 10 into the first stirring and mixing section 150 through the lower pipe 73, the pump 46, the beverage serving pipe 80, the upper pipe 71, and the cylinder 21 in this order.
In this way, a coffee beverage is extracted through the paper filter 10, and the extracted coffee beverage is circulated to the first stirring and mixing section 150 to be re-injected into the cylinder 21, and the re-injected coffee beverage causes the cylinder 21 to be re-injected. The method of stirring and mixing the raw materials inside and hot water is called circulation stirring (stirring and mixing by circulating the beverage).
The first stirring/mixing section 150 can be used when performing cyclical stirring.

The first stirring and mixing section 150 according to the present embodiment utilizes the existing beverage serving piping 80 by connecting one end of the upper piping 71 to the beverage serving piping 80 .
However, the first stirring/mixing unit 150 is not necessarily limited to this form, and may be any type that re-injects the extracted coffee beverage into the cylinder 21. For example, one end of the upper pipe 71 may be connected to the pump 46.
That is, for example, the first stirring/mixing section 150 includes a cylinder 21 , a pump 46 that circulates the coffee beverage extracted within the cylinder 21 , and an upper pipe whose one end is connected to the pump 46 and whose other end is disposed above the cylinder 21 . 71 and a lower pipe 73 having one end connected to the lower part of the cylinder 21 and the other end connected to the pump 46.

The beverage extraction device 1 includes a second stirring and mixing section 200 .
The second stirring/mixing section 200 includes a cylinder 21, a pump 46 that conveys air, and a lower pipe 73 that has one end connected to the discharge port 59 and the other end connected to the pump 46.

The pump 46 transports air into the cylinder 21 via the lower pipe 73, the discharge port 59, and the filter section 18.
In this way, air is conveyed into the cylinder 21 by the pump 46 via the lower pipe 73, and the raw material and hot water in the cylinder 21 are agitated and mixed by the air conveyed into the cylinder 21. mixture).
The second stirring/mixing section 200 can be used when performing air stirring.

In this embodiment, the first stirring and mixing section 150 and the second stirring and mixing section 200 are realized by the same component. That is, the cylinder 21, the pump 46, and the lower pipe 73, which is connected at one end to the lower part of the cylinder 21 and at the other end to the pump 46, used in the second stirring and mixing section are also used in the first stirring and mixing section 150. .
Thereby, the first stirring and mixing section 150 and the second stirring and mixing section 200 can be provided in the beverage extraction device 1 without increasing the number of parts of the beverage extraction device 1.

As shown in FIG. 3, the beverage extraction device 1 includes a tapping mechanism 90 that vibrates the cylinder 21 on the side of the cylinder 21. The tapping mechanism 90 is arranged such that the height of the lower end of the tapping mechanism 90 is approximately equal to the height of the lower end of the cylinder 21. The tapping mechanism 90 is provided with a tapping portion 91 at the lower end thereof, which is a portion that hits the cylinder 21. The height of the tapping portion 91 is approximately equal to the height of the lower end of the cylinder 21. The tapping section 91 can tap the lower end of the cylinder 21 by operating the hitting mechanism 90.

The beverage brewing device 1 includes a control unit 300 including a CPU or the like as a control component. The control unit 300 comprehensively controls each unit of the beverage extraction device 1 by having the CPU read and execute a control program installed in advance.

4 and 5 are diagrams showing the beverage extraction process. FIG. 6 is an enlarged schematic diagram of a part of FIG. 5(F). FIG. 7 is a flowchart showing the operation of the beverage brewing device 1.
The control unit 300 controls the pump 46.
When performing circulation stirring, the control unit 300 can vary and set the flow rate of the extracted coffee beverage to be reinjected into the cylinder 21 by varying the rotation speed of the motor of the pump 46.
Further, when performing air agitation, the control unit 300 can vary and set the volume of air conveyed into the cylinder 21 by varying the rotation speed of the motor of the pump 46.
The rotational speed of the motor of these pumps 46 can be varied by, for example, PWM control or voltage control.

The control unit 300 also controls a filter block drive motor (not shown). The filter block 16 is raised and lowered by the control unit 300 controlling the filter block drive motor.
The control unit 300 also controls a shutter drive motor (not shown). The shutter 160 opens and closes when the control unit 300 rotates the shutter drive motor.
Further, the control unit 300 adjusts the opening/closing and opening degree of the circulation pinch 72, the extraction pinch 82, and the waste liquid pinch 75.
The control unit 300 also controls whether and the amount of the raw material 20, whether or not hot water (drinking water) can be added, and the amount thereof, and whether and the amount of rinsing water (washing water) can be added.
The control unit 300 also controls a beating mechanism drive motor (not shown). The beating mechanism 90 operates as the control unit 300 controls the beating mechanism drive motor.

An example of a process of extracting a coffee beverage in the beverage extraction device 1 is shown.
When the user of the beverage extraction device 1 presses the purchase switch and issues a sales signal (ST1), initial processing is first performed (ST2).

Next, the control unit 300 raises the filter block 16 by controlling the filter block drive motor (ST3). At this time, the lower end of the cylinder 21 contacts and closely contacts the filter block 16 via the paper filter 10 and the packing 17. This state is the raised position of the filter block 16 in which the cylinder 21 and the filter block 16 are in contact with each other via the paper filter 10 or the packing 17 during beverage extraction.
In this embodiment, the lower end of the cylinder 21 is brought into contact with the filter block 16 through the paper filter 10 and the packing 17, but the lower end of the cylinder 21 is brought into contact with the filter block 16 through the paper filter 10 or the packing 17. If the lower end portion and the filter block 16 are in contact with each other, they are in contact with each other.

Next, the control unit 300 opens the shutter 160 by controlling the shutter drive motor, and charges the raw material 20 into the cylinder 21 from the raw material input port 43, as shown by the arrow in FIG. 4(A). ST4). Further, hot water (potable water) is poured into the cylinder 21 from the hot water inlet 44 (ST4).
As a result, the raw material 20 is deposited in the hot water poured into the cylinder 21, and the coffee beverage is extracted within the cylinder 21.
At this time, the control unit 300 opens the circulation pinch 72. Further, the control unit 300 closes the extraction pinch 82. The control unit 300 closes the waste liquid pinch 75.

Next, as shown in FIG. 4(B), the control unit 300 operates the pump 46 in the forward direction. At this time, the circulation pinch 72 is opened. Further, the extraction pinch 82 is closed. Further, the waste liquid pinch 75 is closed. Further, the shutter 160 is closed.
The coffee beverage extracted in the cylinder 21 flows from the inside of the cylinder 21 through the lower piping 73, the pump 46, the beverage supply piping 80, and the upper piping 71 by the pump 46, and is then thrown into the cylinder 21 again from the circulation stirring inlet 47. Ru.
This step shown in FIG. 4(B) is cyclic stirring (ST5).

Next, when the circulation stirring is completed, as shown in FIG. 4(C), the control unit 300 reverses the pump 46 so that the extracted coffee beverage accumulated in the upper pipe 71 is returned into the cylinder 21 from the discharge port 59. The circulation piping is returned to operate in the direction (ST6).
By returning the extracted coffee beverage accumulated in the upper pipe 71 into the cylinder 21 by returning the circulation pipe, remaining of the extracted coffee beverage in the upper pipe 71 is suppressed. This improves hygiene caused by coffee beverage remaining in the upper pipe 71.
At this time, the circulation pinch 72 is opened. Further, the extraction pinch 82 is closed. Further, the waste liquid pinch 75 is closed. Further, the shutter 160 is closed.

Next, when the return of the circulation pipe is completed, as shown in FIG. Air is conveyed inside (ST7).
As a result, after the raw material 20 and the extracted coffee beverage are sufficiently stirred in the cylinder 21 by circulation stirring, the raw material 20 and the extracted coffee beverage are further stirred, so that the raw material 20 is deposited unevenly, etc. Even in this case, efficient stirring of the entire inside of the cylinder 21 can be promoted.
Furthermore, by performing air agitation after cyclic agitation, even if there are gaps in the paper filter 10, the beverage passes through the paper filter 10 once due to cyclic agitation, so air can be uniformly ejected into the cylinder 21. . Therefore, variations in the mixture of the raw material 20 and hot water in the cylinder 21 can be reduced.
At this time, the circulation pinch 72 is opened. Further, the extraction pinch 82 is closed. Further, the waste liquid pinch 75 is closed. Further, the shutter 160 is closed.
The process shown in FIG. 4(D) is air stirring.

The order and number of times of circulating stirring and air stirring can be changed as appropriate.

When the air stirring is completed, the control unit 300 then injects hot water (potable water) into the cylinder 21 from the hot water inlet 44 (ST8). As a result, the raw material 20 scattered due to circulation stirring and air stirring is washed away.

Next, when the coffee beverage extraction process is completed, the circulation pinch 72 is closed and the extraction pinch 82 is opened, as shown in FIG. 4(E). Note that the waste liquid pinch 75 is closed. Further, the shutter 160 is closed.
The control unit 300 operates the pump 46 in the forward direction, and provides the beverage in the cylinder 21 to the user of the beverage extraction device 1 via the beverage provision piping 80 (ST9). This is the first extraction.

When selling a large volume of beverages, an amount of hot water (potable water) exceeding the capacity of the cylinder 21 may be required. In this case, following the first extraction, the control unit 300 injects additional hot water (drinking water) into the cylinder 21 from the hot water inlet 44 (S10). The amount of additional hot water is the amount that does not fit into the cylinder during the first extraction.

Next, the control unit 300 operates the pump 46 in the forward direction to provide the beverage in the cylinder 21 to the user of the beverage extraction device 1 via the beverage provision piping 80 (ST11). At this time, the circulation pinch 72 is closed and the extraction pinch 82 is opened. Note that the waste liquid pinch 75 is closed. Further, the shutter 160 is closed.
In this way, it is also possible to pump the beverage in multiple doses.

Next, as shown in FIG. 5F, the control unit 300 controls the filter block drive motor to lower the filter block 16 to the temporary stop position and stop the filter block 16 (ST12). The temporary stop position is a position located above the lowered position shown in FIG. 5(H), which will be described later.
At this time, the circulation pinch 72 is closed. Further, the extraction pinch 82 is opened. Further, the waste liquid pinch 75 is opened. Further, the shutter 160 is closed.

As shown in FIG. 6, the hollow cylindrical cylinder 21 has a lower surface 93 (lower surface of the cylinder) connecting the lower ends of the cylinder. The filter block 16 is arranged at a position where the upper surface 16A of the filter block 16 is inclined compared to the lower surface 93.

In this embodiment, when the filter block 16 is stopped at the temporary stop position, the portion 94 where the cylinder 21 contacts the filter block 16 via the paper filter 10 and the packing 17, and the cylinder 21 and the filter block 16 A space portion S1 that does not come into contact is generated.
That is, at a portion 94 where the cylinder 21 contacts the filter block 16 via the paper filter 10 and the packing 17, the cylinder 21 and the packing 17 are sealed. In the space S1 where the cylinder 21 does not come into contact with the filter block 16 via the paper filter 10 and the packing 17, the cylinder 21 and the packing 17 are not sealed.

When the filter block 16 is lowered to the temporary stop position, most of the extraction slag 20A accumulated in the filter block 16 descends together with the filter block 16 due to gravity, and only the extraction slag 20A stuck to the inside of the side wall of the cylinder 21 is removed. , will remain inside the cylinder 21.

In this embodiment, the height H1 of the extraction dregs 20A accumulated in the filter block 16 is higher than the height H2 of the space S1.
Thereby, when rinsing water, which will be described later, is poured into the cylinder 21, the rinsing water is prevented from scattering out of the cylinder 21 from the space S1.
The raw material 20 to be used is adjusted so that the height H1 of the extraction slag 20A accumulated in the filter block 16 is higher than the height H2 of the space S1 where the cylinder 21 and the paper filter 10 or the filter block 16 do not come into contact with each other via the packing 17. The temporary stop position can be determined in relation to the amount of .

In addition, in the raised position according to this embodiment, the lower part of the cylinder 21 is sealed by biting into the upper surface 16A of the filter block. The height H2 of the space S1 where the cylinder 21 does not come into contact with the filter block 16 via the paper filter 10 and the packing 17 is 1 to 2 mm.

Next, as shown in FIG. 5(G), the control unit 300 injects rinsing hot water (cleaning water) into the cylinder 21 from the hot water inlet 44 (ST13).
At this time, the circulation pinch 72 is closed. Further, the extraction pinch 82 is opened. Further, the waste liquid pinch 75 is opened. Further, the shutter 160 is closed.

The rinsing hot water introduced into the cylinder 21 from the hot water inlet 44 collides with the head 28 of the cylinder 21 . The rinsing water descends while flowing around the inner side wall of the cylinder 21 due to the force of the injection. The rinsing water descends along the side wall inside the cylinder 21, and this rinsing water causes the extraction slag 20A stuck to the inside of the side wall of the cylinder 21 to fall onto the filter block 16.
Thereby, the extraction dregs 20A slightly remaining inside the side wall of the cylinder 21 can be discharged onto the filter block 16 using a small amount of rinsing water. In addition, since the height H1 of the extraction slag 20A accumulated in the filter block 16 is higher than the height H2 of the space S1 where the cylinder 21 does not come into contact with the filter block 16 via the paper filter 10 and packing 17, the rinsing water is Leakage outside the cylinder 21 is suppressed. Since the rinsing water can be prevented from leaking out of the cylinder 21, the rinsing water can be included in the extraction slag 20A slightly remaining inside the side wall of the cylinder 21, and the extraction slag 20A can be easily separated from the cylinder 21.

Next, as shown in FIG. 5H, the control unit 300 operates the beating mechanism 90 by controlling a beating mechanism drive motor (not shown) (ST14). At this time, the circulation pinch 72 is closed. Further, the extraction pinch 82 is opened. Further, the waste liquid pinch 75 is opened. Further, the shutter 160 is closed.

The tapping mechanism 90 is controlled so that its lower portion moves toward the cylinder 21 , and a tapping section 91 provided at the lower end of the tapping mechanism 90 hits the lower end of the cylinder 21 . In this embodiment, this operation is repeated three times.
As a result, even if the extraction slag 20A remains inside the side wall of the cylinder 21 after the rinsing water is added (ST13), the extraction slag 20A can be dropped onto the filter block 16, and the extraction slag 20A can be dropped into the cylinder 21. Remaining of extraction dregs 20A is further suppressed.

Next, as shown in FIG. 5(H), the control unit 300 lowers the filter block 16 to the lowered position (ST15).
Next, the extraction slag 20A on the filter block 16 is transported together with the paper filter 10 by the transport section 60, and is disposed of in the storage section 30 (ST16).

As described above, the beverage extraction device 1 according to the present embodiment includes a cylinder 21 into which raw material 20 and hot water (drinking water) are input, and a cylinder 21 provided below the cylinder 21, a paper filter 10, and a packing. A filter block 16 that can be raised and lowered is disposed in a raised position where it comes into contact with the cylinder 21 or a lowered position where it does not come into contact with the cylinder 21; (rinsing water inlet) and a control unit 300, the control unit 300 lowers the filter block 16 from the raised position to a temporary stop position located above the lowered position, and pours rinsing water from the hot water inlet 44. The liquid is charged into the cylinder 21.
In order to lower the filter block 16 to the temporary stop position, most of the extraction slag 20A in the cylinder 21 is lowered together with the filter block 16. Inside the cylinder 21, a small amount of extraction slag 20A remains inside the lower side wall of the cylinder 21. In this state, rinsing water is poured into the cylinder 21, so the extraction slag 20A can be discharged onto the filter block 16 using a small amount of rinsing water, and the filter block 16 can be moved up to the temporary stop position located above the lowered position. Since the rinsing water is only lowered, leakage of the rinsing water to the outside of the cylinder 21 can be suppressed. Further, since the rinsing water can be prevented from leaking out of the cylinder 21, the rinsing water can be included in the extraction slag 20A slightly remaining inside the side wall of the cylinder 21, and the extraction slag 20A can be easily separated from the cylinder 21.

Further, according to the present embodiment, the temporary stop position is a portion 94 where the cylinder 21 contacts the filter block 16 via the paper filter 10 and the packing 17, and a space where the cylinder 21 and the filter block 16 do not contact each other. This is the height at which each of the portions S1 and S1 occurs.
According to this, even when the filter block 16 is lowered to the temporary stop position,
Since the rinsing water does not leak from the portion 94 where the cylinder 21 contacts the filter block 16 via the paper filter 10 and the packing 17, leakage of the rinsing water to the outside of the cylinder 21 can be further suppressed.

Further, according to the present embodiment, the filter block 16 is arranged at a position where the upper surface 16A of the filter block 16 is inclined compared to the lower surface 93 (lower surface of the cylinder).
According to this, when the filter block 16 is lowered to the temporary stop position, the portion 94 where the cylinder 21 contacts the filter block 16 via the paper filter 10 and the packing 17, and the cylinder 21 and the filter block 16 A space portion S1 that does not come into contact with each other can be created, and leakage of the rinsing hot water to the outside of the cylinder 21 can be further suppressed.

Further, according to the present embodiment, the tapping mechanism 90 that vibrates the cylinder 21 is provided, and the control unit 300 causes rinsing water (cleaning water) to be introduced into the cylinder 21 from the hot water inlet 44 (cleaning water inlet). Afterwards, the cylinder 21 is vibrated by the striking mechanism 90.
According to this, since the cylinder 21 is vibrated by the beating mechanism 90, it is possible to further suppress the extraction slag 20A from remaining inside the side wall of the cylinder 21.

Further, according to the present embodiment, a cylinder 21 into which the raw material 20 and hot water (drinking water) are charged, and a cylinder 21 provided below the cylinder 21, and which are connected to each other via the cylinder 21, the paper filter 10, and the packing 17 during beverage extraction. A filter block 16 that can be raised and lowered is placed in a raised position in contact with the raw material 20 and is placed in a lowered position when the extraction slag 20A of the raw material 20 is transported, and a hot water inlet 44 (for pouring rinse water into the cylinder 21 after beverage extraction) A control method for lowering the filter block 16 from the raised position to a temporary stop position located above the lowered position and injecting rinsing water into the cylinder 21 from the hot water inlet 44 after beverage extraction. is taking.
In order to lower the filter block 16 to the temporary stop position, most of the extraction slag 20A in the cylinder 21 is lowered together with the filter block 16. Inside the cylinder 21, a small amount of extraction slag 20A remains inside the lower side wall of the cylinder 21. In this state, rinsing water is poured into the cylinder 21, so the extraction slag 20A can be discharged onto the filter block 16 using a small amount of rinsing water, and the filter block 16 can be moved up to the temporary stop position located above the lowered position. Since the rinsing water is only lowered, leakage of the rinsing water to the outside of the cylinder 21 can be suppressed. Further, since the rinsing water can be prevented from leaking out of the cylinder 21, the rinsing water can be included in the extraction slag 20A slightly remaining inside the side wall of the cylinder 21, and the extraction slag 20A can be easily separated from the cylinder 21.

Although the present invention has been described above based on the present embodiments, the present invention is not limited to these embodiments.
For example, pouring in rinsing water (ST13) and operating the beating mechanism 90 (ST15) may be repeated. Also, for example, at the same time as filter block lowering (ST12). You may start adding rinsing water (ST13). Further, for example, the operation of the beating mechanism 90 (ST14) may be started at the same time as the rinsing water is poured.

Also, for example, the temporary stop position can of course be set so that the height H2 of the space S1 where the cylinder 21 and the filter block 16 do not come into contact is higher than the height H1 of the extraction slag 20A that accumulates in the filter block 16. It is possible.

1 Beverage extraction device 16 Filter block 16A Upper surface of filter block 20 Raw material 20A Extraction slag 21 Cylinder 28 Head 43 Raw material inlet 44 Hot water inlet 90 Tapping mechanism 91 Tapping part 93 Lower surface (lower surface of cylinder)
94 Part where the cylinder and filter block come into contact 300 Control part H1 Height of extraction slag accumulated on the filter block H2 Height of space S1 Space part where the cylinder and filter block do not come into contact

Claims (4)

a cylinder into which raw materials and potable water are input;
a vertically movable filter block provided below the cylinder and placed in a raised position where it contacts the cylinder via a paper filter or packing, or placed in a lowered position where it does not come into contact with the cylinder;
a wash water inlet for introducing wash water into the cylinder;
A beverage brewing device comprising a control unit,
The control unit lowers the filter block from the raised position to a temporary stop position located above the lowered position, and causes the cleaning water to be introduced into the cylinder from the cleaning water input port,
The temporary stop position is a height at which a portion where the cylinder and the filter block come into contact with each other via a paper filter or packing, and a space portion where the cylinder and the filter block do not come into contact with each other. A beverage extraction device featuring : 2. The filter block is arranged in a position where an upper surface of the filter block is inclined compared to a lower surface of the cylinder when the filter block is in the temporary stop position. beverage extraction equipment. comprising a beating mechanism that vibrates the cylinder,
3. The control unit causes the cylinder to vibrate using the beating mechanism after the cleaning water is introduced into the cylinder from the cleaning water inlet. beverage extraction equipment. a cylinder into which raw materials and potable water are input;
a filter block that is provided below the cylinder and is movable up and down, and is placed in a raised position where it comes into contact with the cylinder through a paper filter or packing during beverage extraction, and placed in a lowered position when the extraction dregs of the raw material are conveyed;
A method for controlling a beverage extraction device, comprising: a cleaning water inlet for introducing cleaning water into the cylinder after beverage extraction;
After brewing the beverage, the filter block is moved from the raised position to a temporary stop position located above the lowered position, and a portion where the cylinder and the filter block come into contact with each other via a paper filter or packing; and a space portion where the filter block does not come into contact with the beverage brewing device. Control method.

Images