JP2003299573A - Extraction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an extraction device which is convenient in use for a user. <P>SOLUTION: In the case that a setting switch (SW) is turned on (the extraction device is set such that water is manually fed to a water storing tank) (on at a step S1), when a water feeding solenoid valve is opened at a step S2 and a water level SW is turned on at a step S3 (YES at the step S3), the water feeding solenoid valve is closed (S5 to S6) after 15 seconds from on of water level sensing SW, a hot water heating operation in a hot water storing tank subsequent to a step S7 is carried out. In turn, in the case that the set SW is turned off (it is set such that water is automatically fed to the water storing tank), when the water level sensing SW is turned on (YES at the steps S3 and S4), hot water heating operation in the hot water storing thank subsequent to the step S7 is carried out as it is. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an extraction device,
In particular, it relates to an extraction device for obtaining an extraction liquid by supplying hot water to a container containing a powder raw material and a filter.

[0002]

2. Description of the Related Art Conventionally, there have been devices for automatically obtaining hot water by automatically supplying hot water to a container 600 containing a powder material and a filter, such as a vending machine for coffee drinks. FIG. 26 shows a schematic hot water supply mechanism in such an apparatus.

In the apparatus shown in FIG. 26, the water storage tank 5
03 is supplied to the hot water storage tank 505, heated by the heater 550 in the hot water storage tank 505 to be hot water, and sent to the measure cup 507 having a predetermined capacity. Then, the hot water in the measure cup 507 is sent to the container 600 including the powder raw material and the filter by the air sent from the pump 506 on condition that the temperature sensor 554 detects that the temperature reaches a predetermined temperature. Then, the extract obtained from the container 600 is supplied to the cup 400.

The steam in the hot water storage tank 505 was sent to the water storage tank 503 through the steam pipe 559. Further, when the water level sensor 530 mounted relatively below the water storage tank 503 detects water shortage, the extraction device notifies the user of that fact and stops the operation. Then, based on the notification, the user supplies water to the water storage tank 503, so that the water level sensor 530
Due to this, the detection of water shortage was canceled, and the extraction device was restarted.

[0005]

When the device shown in FIG. 26 is to be constructed so that water is automatically supplied to the water storage tank 503, a design change is required. This depends on whether the water supply to the water storage tank 503 is manual or automatic.
This is because the purpose of detecting the water level sensor 530 in the device is different.

Specifically, when water is supplied manually,
The water level sensor 530 is a level that prevents empty cooking, and the extraction device has been designed so that water shortage is detected when the water level in the water storage tank 503 becomes relatively small.

On the other hand, when water is automatically supplied, the water level sensor is designed to stop the water supply to the water storage tank 503, that is, to detect the water shortage when the water storage tank 503 is almost full. .

It should be noted that when an apparatus designed to supply water manually is used in a situation where water is supplied automatically, the water in the water storage tank 503 will always be at the water level sensor 5.
The amount of water depletion detected in 30, that is, as described above, is maintained in a relatively small amount.
This situation is dangerous because there is always no water in the water storage tank 503, and the water is supplied as soon as it is used, and the water supply is turned on / off. This is not preferable because the number of times the valve that switches is opened and closed increases.

On the other hand, when an apparatus designed to supply water automatically is used in a situation where water is supplied manually, the water level sensor 530 causes the water tank 503 to retain a relatively large amount of water. In order to detect water shortage even when the user is in the
You may feel uncomfortable. That is, a device designed to be suitable for automatic water supply would be unfavorable for use in a manual water supply situation.

As described above, the conventional extraction device is compatible with the one designed to supply water automatically and the one designed to supply water manually. It was hard to say that it was not easy to use.

Further, in the apparatus shown in FIG. 26, when the hot water in the hot water storage tank 505 enters the steam pipe 559, the amount of the hot water entering increases, or the water storage tank 5
When water is added to the vicinity of the connection portion of the steam pipe 559 in 03, it is possible that water circulation occurs between the water storage tank 503 and the hot water storage tank 505. When such a circulation occurs, the heater 550 is connected to the hot water storage tank 50.
5 and the water in the measure cup 507, the water in the water storage tank 503 must be heated. Therefore, the heater 550 is caused to perform unnecessary heating, the running cost is increased, and the time from when water is supplied to the water storage tank 503 until the hot water in the measure cup 507 reaches the above-mentioned predetermined temperature. Since it was unnecessarily prolonged, it was hard to say that it was convenient for the user.

The present invention has been conceived in view of such circumstances, and an object thereof is to provide an extraction device which is convenient for the user.

[0013]

According to an aspect of the present invention, there is provided an extraction device, wherein hot water is supplied to the inside of an extraction container, which is a container containing a powder raw material and a filter, so that the extraction container is outside the extraction container. An extraction device for obtaining an extraction liquid through a filter, wherein a boiling water tank for storing the hot water, a heater provided in the boiling water tank, and water storage for storing water for supplying to the boiling water tank A tank,
A sensor that detects whether or not a specific amount of water is stored in the water storage tank, an introduction signal output unit that outputs a water introduction signal that is a signal for introducing water into the water storage tank, and the introduction It is characterized by including a water introduction setting section for setting whether or not to output the water introduction signal to the signal output section, and a heater control section for controlling the operation of the heater. In addition,
When it is set to output the water introduction signal in the water introduction setting unit, the introduction signal output unit,
After the sensor detects that the water in the water storage tank has reached the specific amount, outputs the water introduction signal until a predetermined time elapses, and then stops the output of the water introduction signal to control the heater. When the water introduction setting unit is set not to output the water introduction signal after the water introduction signal output is stopped, the heater starts heating, and the heater control unit Causes the heater to start heating in response to the sensor detecting that the water in the water storage tank has reached the specific amount.

According to one aspect of the present invention, the extraction device comprises:
Depending on the setting in the water introduction setting unit, after the detection of water shortage in the sensor is canceled, water is automatically supplied for a predetermined time and then heating by the heater is started, or the detection of water shortage in the sensor is canceled. Accordingly, the operation can be performed in one of two ways, that is, the heating by the heater is started.

This allows the brewing device to store the water when the above-mentioned specific amount detected by the sensor is relatively small, that is, when the brewing device is designed to be suitable for manually supplying water. Even when used in a situation where water is automatically supplied to the tank, it is possible to keep the water in the water storage tank in an amount larger than the amount in which the sensor detects water shortage. Therefore, the extraction device can be used safely and comfortably, whether the water is automatically or manually supplied to the water storage tank without any design change.

Further, in the extracting apparatus of the present invention, it is preferable that the heating portion of the heater has a portion having a spiral shape.

As a result, the hot water in the hot water tank can be efficiently heated. An extraction apparatus according to another aspect of the present invention obtains an extraction liquid outside the extraction container through the filter by supplying hot water into the extraction container, which is a container including a powder raw material and a filter. An extraction device for, comprising a boiling water tank for storing the hot water, a water storage tank for storing water for supplying to the boiling water tank, and a pipe connected from the boiling water tank to the water storage tank, A steam pipe for introducing the steam in the boiling water tank into the water storage tank, wherein the steam pipe is partially made smaller in inner diameter on the water storage tank side than on the water boiling tank side. Is characterized by.

According to another aspect of the present invention, even when the hot water in the hot water tank enters the steam pipe, the hot water is present in the portion where the inner diameter is smaller on the water storage tank side than on the hot water tank side. , Is blocked from entering the water tank.

As a result, it is possible to avoid a situation in which water circulates between the boiling water tank and the water storage tank by filling the steam pipe with hot water, and the water in the water storage tank is not heated. The situation in which efficient heating is performed can be avoided. Therefore, the extraction device becomes easy to use and can avoid a decrease in heating efficiency.

Further, in the extraction apparatus of the present invention, it is preferable that the steam pipe has a smaller inner diameter on the side of the water storage tank than on the side of the boiling water tank at the connection portion to the water storage tank.

Thus, it is possible to effectively prevent water in the steam from being boiled into the water storage tank while the water in the steam is separated from the air in the steam pipe.

Further, in the extraction apparatus of the present invention, it is preferable that at least a part of the water storage tank is constructed so that the amount of water in the water storage tank can be visually recognized from the outside of the extraction apparatus.

As a result, the amount of water in the water storage tank can be detected easily and at low cost without using other members.

An extraction apparatus according to still another aspect of the present invention supplies hot water into an extraction container, which is a container containing a powder raw material and a filter, so as to pass outside the extraction container via the filter. An extraction device for obtaining an extraction liquid, comprising: a boiling water tank for storing the hot water; and a heater provided in the boiling water tank, wherein the heating portion of the heater has a portion having a spiral shape. It is characterized by

According to the present invention, the hot water in the boiling water tank can be heated earlier than when a linear heater is provided.

As a result, the extraction liquid can be provided early after the heating of the hot water in the boiling water tank is started, and the extraction device becomes convenient for the user.

Further, in the extraction apparatus of the present invention, the boiling water tank is provided with an outlet for discharging the stored hot water in order to supply the hot water to the extraction container, and the heating portion of the heater is It is preferable that a portion having the spiral shape is provided near the outlet of the boiling water tank.

As a result, even among the hot water in the boiling water tank, the hot water at the position used for extraction can be efficiently heated. Therefore, after the heating of the hot water in the boiling water tank is started,
The extract can be provided even earlier.

An extraction apparatus according to another aspect of the present invention is that the hot water is supplied to the inside of an extraction container, which is a container containing a powder raw material and a filter, so that the extraction is performed outside the extraction container through the filter. An extraction device for obtaining a liquid, a boiling water tank for storing the hot water, a heater provided in the boiling water tank, a pump for sucking the hot water in the boiling water tank and sending it to the extraction container And a suction pipe for flowing hot water from the boiling water tank to the pump, and a rectifying member that is a member that vertically faces the opening of the suction pipe on the boiling water tank side.

According to the present invention, the air bubbles generated by the water heated by the heater in the boiling water tank are blocked by the rectifying member and cannot enter the suction pipe.

Thus, it is possible to prevent bubbles from being mixed in the hot water sucked by the pump, and to suppress the change in the amount of hot water supplied to the extraction container, so that the concentration of the extraction liquid is constant and the extraction device However, it is convenient for the user.

The extraction apparatus of the present invention further includes an opening / closing unit connected to the boiling water tank, for opening and closing the boiling water tank in order to switch whether to discharge the hot water in the boiling water tank, The water heating tank has a discharge hole formed in a portion connected to the opening / closing portion, and includes a nut for connecting to the opening / closing portion, and the nut is the discharge portion from the outer peripheral portion of the nut in the water heating tank. It is preferable that a notch connecting to the hole is formed.

As a result, when the hot water in the boiling water tank is discharged, the hot water near the nut flows from the outer peripheral portion of the nut to the discharge hole along the notch, so that it can be prevented from remaining near the nut.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION An extraction apparatus according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an extraction device according to an embodiment of the present invention, FIG. 2 is a front view of the extraction device, and FIG.
It is a right view of the extraction device. FIG. 4 is a perspective view of the lower portion of the extraction device.

The extractor 1 is covered with the exterior part 2 on the outer surface thereof, has an operation panel 20 at the upper left portion of the front surface thereof, has a drawer 29 at the upper right portion of the front surface thereof, and has a tray 4 attached to the lower portion of the front surface thereof. There is. The extraction device 1 includes an extraction container (extraction cup 1 described later) that is a container including a powder raw material and a filter.
(00) is set in the drawer 29 to supply hot water to the extraction container and supply the extraction liquid of the powder raw material in the extraction container. In the state shown in FIG. 1, the tray 4
A cup base 40 is further attached on the top of the cup base 4
A cup 400 is placed on the top of the 0. In this state, the cup 400 is located below the drawer 29. And
The extraction device 1 can supply the above-mentioned extraction liquid to the cup 400.

On the operation panel 20, the start button 2
1, 22, a window 23, and lamps 24-27 are provided. The start button 21 is a key for executing the above-mentioned powder material extraction operation in order for the user to drink the extraction liquid in a hot state. Hereinafter, the extract that can be drunk hot is referred to as "hot extract". The start button 22 is a key for the user to execute the above-described powder material extraction operation (hereinafter simply referred to as extraction operation) in order to drink the extraction liquid in a cold state by adding ice or the like. Hereinafter, the extract for drinking in the cold state is referred to as "ice extract". In addition, the amount of the extraction liquid for ice by one extraction operation is smaller than that of the extraction liquid for hot. This is because when it is mixed with ice, it is intended to be the same amount as the hot extract.

The extraction device 1 has a tank (a water storage tank 3 described later) housed inside the exterior 2. The water storage tank 3 is covered with a tank lid 41, and a part of the water storage tank 3 is covered by the window 2
It is visible from outside the extraction device via 3. In addition,
Since the tank is made of a transparent or translucent material, the user can visually check the remaining amount of water in the tank through the window 23. The water storage tank 3 is supplied with water from the outside without being taken out from the exterior part 2 by opening the tank lid 41.

A dust cover 28 is attached to the lower front portion of the extraction device 1. As shown in FIG. 4, a dust box 42 is housed inside the exterior portion 2 and inside the dust cover 28. The extraction cup 100
The dust box 42 is replaced after each extraction operation, and the dust box 42 is provided in the exterior portion 2 to accommodate the extraction cup 100 after being used for the extraction operation. The upper end of the dust cover 28 is fixed to the front surface of the exterior part 2. Then, by rotating the dust cover 28 around its upper end, as shown in FIG. 3 or 4, the dust box 42 can be taken out of the exterior part 2.

The lamp 24 is turned on when the extraction device 1 is in a state of preparation for an extraction operation. The lamp 25 is turned on when the extraction device 1 is in a state capable of executing the extraction operation. The lamp 26 is turned on when water needs to be supplied to the water storage tank 3 (when a water level sensor 30 described later detects water shortage). The lamp 27 is lit when a predetermined sensor detects that the dust box 42 is full.

FIG. 5 schematically shows the internal structure of the extraction device 1. In the extraction device 1, the water supplied to the water storage tank 3 is introduced into the hot water storage tank 5 via the pipe 51. The water introduced into the hot water storage tank 5 is heated by the heater 50. The temperature of the hot water located in the upper part of the hot water storage tank 5 is detected by the temperature sensor 54. And the temperature sensor 5
When the detected temperature of No. 4 reaches a predetermined temperature and the start button 21 or 22 is pressed, the gear pump 6 is driven, so that the hot water in the hot water storage tank 5 is discharged.
It is guided to the gear pump 6 via the tube 2, the tube 53, and the three-way solenoid valve 60, and is further supplied to the extraction cup 100 via the tube 63 and the introduction needle 65. The steam in the hot water storage tank 5 is sent to the water storage tank 3 via the steam pipe 59.

The introduction needle 65 is a hollow needle. The extraction cup 100 is fixed by being fitted into the cup receiver 32 in the cup holder 31. Cup holder 3
1 is detachably fixed in the drawer 29. Introduction needle 6
A fixing member 64 is attached to the unit 5. The cup holder 31 has pins 31A and 31B formed on both left and right ends, and the pins 31A and 3B are provided in holes appropriately provided in the drawer 29.
By hooking or fitting 1B, it is possible to rotate the drawer 29 about the pins 31A and 31B as axes. This rotation of the cup holder 31 with respect to the drawer 29 allows the extraction cup 100
Are thrown into the dust box 42.

The hot water is supplied to the extraction cup 100 as described above, in which the introduction needle 65 and the fixing member 64 are fixed to the cup holder 31 by a predetermined mechanism.
00, and the extraction operation is performed with the introduction needle 65 inserted in the extraction cup 100.

The three-way solenoid valve 60 connects the pipe 62 to the pipe 53 or the intake hole 61. If the pipe 62 is connected to the pipe 53, the hot water of the hot water storage tank 5 can flow from the pipe 62 to the pipe 53 as described above. On the other hand, the pipe 62 is connected to the intake hole 6
When connected to 1, the air is blown into the extraction cup 100 via the gear pump 6, the pipe 63, and the introduction needle 65. Since the three-way solenoid valve 60 is located on the upstream side of the gear pump 6 with respect to the flow of hot water or air sent to the extraction cup 100, both the hot water and the air flow to the extraction cup 100 from the gear pump 6. Can be sent.

At the bottom of the hot water storage tank 5, the drain cock 5
7 and the drain pipe 56 are connected. The drain cock 57 is attached to the bottom of the hot water storage tank 5 with a nut 58. The drain cock 57 has a valve function, and the opening / closing of the valve is switched by the operation lever 55. That is, the drain cock 57 is opened by operating the operation lever 55, and the hot water (or water) in the hot water storage tank 5 is discharged through the drain pipe 56 via the drain cock 57.

The internal structure of the extraction device 1 will be described below. FIG. 6 is a front view of the extraction device 1 with the front surface portion of the exterior part 2 removed, and FIG.
It is a top view in the state where the upper surface part of exterior part 2 was removed. FIG. 8 is a right side view of the extraction device 1 with the right side surface portion of the exterior part 2 removed. In FIG. 6, a member in front of the hot water storage tank 5 is partially broken, and a longitudinal section thereof is shown in order to explain the inside of the hot water storage tank 5 in detail. Further, in FIG. 8, in order to show the internal structure of the extraction chamber 70, the extraction chamber 70 is shown partially broken, and the drawer 29 is also shown partially broken.

With reference to FIGS. 6 to 8, inside the extraction device 1, the water storage tank 3 is arranged on the upper left side, and the extraction chamber 70 is arranged on the front side on the upper right side. A partition plate 85 is installed between the dust box 42 and the extraction chamber 70. A hot water storage tank 5 is installed in the lower rear part of the extraction device 1, and a steam pipe 59 extending from the hot water storage tank 5 is connected to a rear end portion of the water storage tank 3. Also,
A three-way solenoid valve 60 is installed behind the water storage tank 3. Furthermore, at the top of the water storage tank 3, a tank lid 4
A filter 43, which is capped at 1, is provided. The user opens the tank lid 41 and, via the filter 43,
Water is added to the water storage tank 3.

The extraction chamber 70 is a casing having an upper surface, a rear surface, and left and right side surfaces. Slide rails 71 and 72 are attached to the left and right side surfaces inside the extraction chamber 70, respectively. The drawer 29 has arms 29 on each side.
A and 29B are attached, and the arms 29A and 29B are attached to slide rails 71 and 72, respectively. The slide rails 71 and 72 are configured to be extendable and retractable,
The slide rails 71 and 72 extend by pulling the drawer 29 forward. In this way, the drawer 29
Moves in the front-back direction of the extraction device 1. The state in which the drawer 29 is pulled out will be described in detail with reference to FIG. FIG. 9 is a diagram showing the vicinity of the drawer 29 in the state where the drawer 29 is drawn out in the extraction device 1.

The pins 31A and 31B of the cup holder 31 described above are fitted into the arms 29A and 29B. Thereby, between the arms 29A and 29B,
The cup holder 31 is detachably fixed. The slide rails 71 and 72 are configured to be extendable and contractible, and in the state shown in FIG. 9, they extend in a state where the arms 29A and 29B are fitted, and in the state shown in FIG.

A funnel 33 is provided below the extraction chamber 70 so as to penetrate the partition plate 85. When the slide rails 71 and 72 are contracted, the cup holder 31 is housed in the exterior part 2, and the extraction operation is performed, the funnel 3 is
3 is located below the extraction cup set in the cup holder 31. Then, when hot water is supplied into the extraction cup 100, the extraction liquid flowing from the extraction cup 100 is provided to the container such as the cup 400 via the funnel 33. Specifically, the funnel 33 is provided with an extraction port 33A below, and the extraction liquid is provided to a container such as the cup 400 via the extraction port 33A.

A rail 69 is attached to the central portion of the top surface of the extraction chamber 70 so as to run in the front-rear direction. Further, the tooth plate 75 has a notch formed on the upper surface, and the lower side surface is fitted into the rail 69. Further, in the tooth plate 75, the notched upper surface is located above the extraction chamber 70,
The lower side surface fitted into the rail 69 is located inside the extraction chamber 70. One end of an arm 79 is attached to the rear end of the tooth plate 75 inside the extraction chamber 70. Arm 79
The other end of is attached to the fixing member 64.

Rails 68 and 67 extending in the vertical direction are attached to the left and right side surfaces inside the extraction chamber 70. The fixing member 64 is configured to be movable in the vertical direction along the rails 68 and 67 by fitting the members appropriately attached to the left and right side surfaces of the fixing member 64 into the rails 68 and 67.

A gear motor 73 and a gear 74 connected to the gear motor 73 are attached to the upper portion of the extraction chamber 70. By driving the gear motor 73,
The gear 74 rotates. The gear 74 meshes with the notch on the upper surface of the tooth plate 75. Then, as the gear 74 rotates, the toothed plate 75 moves in accordance with the rotation direction of the gear 74.
It slides forward or backward with respect to the gear 74.
As the tooth plate 75 moves forward or backward, the extension angle of the arm 79 changes. The height of the fixing member 64 changes as the angle at which the arm 79 extends changes.

Referring now to FIGS. 10 and 11, the fixing member 6 according to the rotation of the gear 74 is rotated.
The change in height 4 will be described. 10 shows the state where the fixing member 64 is in the standby position in the extraction device 1, and FIG. 11 shows the state where the fixing member 64 is in the position during the extraction operation.

The other end of the arm 79 is attached to the fixing member 64, and further, one end of the tube 63 is attached.
An introduction needle 65 is attached to one end of the tube 63. The extraction cup 100 is set in the cup receiver 32 of the cup holder 31. In the state shown in FIG.
The front end of the tooth plate 75 is engaged with the gear 74. And
By rotating the gear motor 73 in a certain direction (the direction in which the gear 74 is rotated counterclockwise in FIG. 10), the tooth plate 7 is rotated.
5 is advanced to the right in FIG. 10 (forward in the extraction device 1). As the tooth plate 75 is moved to the right in FIG. 10, one end of the arm 79 (the end attached to the tooth plate 75) also moves to the right in FIG. 10 without changing its height. The other end of the arm 79 is fixed by the
4 is moved downward along the rails 68 and 67.

When the gear 74 is rotated until the rear end (left end in FIG. 10) of the tooth plate 75 reaches the position where the gear 74 fits with the gear 74, as shown in FIG. The extraction cup 100 is brought into contact with the upper surface of the extraction cup 100 and the extraction cup 100 is pressed downward. In the state shown in FIG. 11, the introduction needle 65 is inserted inside the extraction cup 100 from the upper surface.

At the bottom of the cup holder 31, a hollow extraction needle 31C and an extraction passage 31D connected to the extraction needle 31 are provided. In the state shown in FIG. 10, the extraction cup 100 is set so as to float from the extraction needle 31C. Then, in the state shown in FIG. 11, the extraction cup 100 is pressed downward to be pressed against the cup holder 31 together with the cup receiver 32. This causes the extraction needle 31 to move to the extraction cup 1
It is inserted in the bottom of 00. Then, in the state shown in FIG. 11, the extraction cup 100 from the tube 63 through the introduction needle 65.
When hot water is introduced into the inside, the extraction liquid generated in the extraction cup 100 flows to the funnel 33 via the extraction needle 31C and the extraction passage 31D and is provided to the container such as the cup 400 via the extraction port 33A. To be done.

As described above, when the extraction operation is performed, the rotation of the gear motor 73 causes the fixed member 64 to move downward and the introduction needle 65 to move toward the extraction cup 100.
And the extraction needle 31C is inserted into the bottom of the extraction cup 100. When the extraction operation ends, the gear motor 73 rotates in the direction opposite to the certain direction described above, and the state shown in FIGS. 11 to 10 is restored. Thereby, the introduction needle 65 and the extraction needle 31C are
Leave the extraction cup 100.

A switch 86 is fixed to the fixing member 64. The switch 86 includes a lever 86A, and is configured to switch between opening and closing of the circuit by pushing the lever 86A upward.
In the state shown in FIG. 10, the lever 86A is not pressed, but in the state shown in FIG. 11, the lever 86A is pressed upward by the extraction cup 100 and is housed in the main body of the switch 86. This allows the extraction cup 10
If 0 is set in the cup receiver 32, when the fixing member 64 is moved downward as shown in FIG. 11, the extraction cup 100 is caused to have the switch 86 switch between opening and closing of the circuit.

Although not shown in FIGS. 10 and 11, the arm 29A of the drawer 29 is attached to the fixing member 64.
Is provided. FIG. 12 is a diagram showing a state in which the fixing member 64 and the drawer 29 partially contact each other when the extracting operation is performed. 10 and 11 are views of the inside of the extraction chamber 70 viewed from the left,
Although the arm 29A is omitted in order to show the inside of the extraction cup 100, FIG. 12 is a view of the inside of the extraction chamber 70 as viewed from the left side, which is viewed from the left side of the arm 29A. Is shown. Further, in the state shown in FIG. 12, the fixing member 64 is at the position when the extracting operation is performed, that is, the position moved to the lowest position, as in the state shown in FIG.

The fixing member 64 has a pin 64A extending downward at the left end thereof. Further, the drawer 29 includes a convex portion 290 on the left side surface of the arm 29A. When the drawer 29 is housed in the extraction chamber 70 and the extraction cup 100 is in a position suitable for the extraction operation, the protrusion 290 is located rearward of the pin 64A (see FIG. 1).
It is located on the left in 2). And in this state,
Even if the drawer 29 is to be pulled forward (to the right in FIG. 12), the protrusion 290 is caught by the pin 64A,
The drawer is blocked. That is, in the extraction device 1, the drawer 29 is prevented from being drawn out while the extraction operation is being performed. This prevents the hot water introduced from the introduction needle 65 from splashing.

Although not shown in FIGS. 10 to 12, the extraction device 1 is provided with a switch (a door switch described later) for detecting that the drawer 29 is in a position suitable for the extraction operation. . By the detection output of the switch, the drawer 29 is in a position suitable for the extraction operation (the position where the extraction cup 100 set in the cup receiver 32 is inserted with the introduction needle 65 and the extraction needle 31C as shown in FIG. 11). Whether or not it can be detected.

Referring again to FIGS. 6 to 8, inside the exterior part 2, the dust box 42 and the partition plate 85 are provided.
A partition plate 82, which is a water-repellent member such as plastic, is provided in the rear of the, and a pump case 80 is installed above the partition plate 82. The gear case 6 is housed in the pump case 80. Also,
A circuit board 66 is attached to the lower surface of the partition plate 82. The positional relationship between the partition plate 82, the pump case 80, and the circuit board 66 is shown in FIG.

Still referring to FIG. 13, a partition plate 83 is provided between the circuit board 66 and the hot water storage tank 5. A partition plate 84 is provided in front of the hot water storage tank 5. Various circuit components such as a circuit for driving the gear pump 6 in the extraction device 1 are mounted on the circuit board 66. Inside the exterior part 2 of the extraction device 1, pipes through which hot water flows, such as the pipes 62 and 63, are arranged in the upper part, and a circuit board 66 is arranged in the lower part. Thereby, even if hot air leaks from the tubes 62 and 63, the hot air can be prevented from being transmitted to the circuit board 66. Also, the circuit board 6
The upper part of 6 is covered with a partition plate 82. Thereby, even if dew condensation is formed on the outer surfaces of the pipes 62 and 63, or even if a crack occurs in the pipes 62 and 63, it is possible to prevent water droplets from being directly attached to the circuit board 66.
Further, since the partition plates 83 and 84 are provided, it is possible to prevent the steam generated near the hot water storage tank 5 from spreading into the exterior portion 2.

The gear case 6 is housed in the pump case 80, and the motor 81 for driving the gear pump 6 is attached to the gear pump 6, and most of it is the case 8.
It projects out of 0. FIG. 14 shows the internal structure of the pump case 80 shown in FIG. Note that FIG. 14 shows a state in which the cross section of the pump case 80 is viewed from above.

With further reference to FIG. 14, tubes 62, 63
Penetrates the pump case 80 in order to connect to the gear pump 6 in the pump case 80. A sound absorbing member 80A for absorbing a sound generated when the gear pump 6 sends hot water is attached to an inner wall of the pump case 80. This suppresses noise when the extraction operation is performed in the extraction device 1. Further, since at least a part of the motor 81 is exposed to the outside of the pump case 80, even if the motor 81 is driven, the heat dissipation of the motor 81 is sufficiently performed.

Referring again to FIGS. 6 to 8, a heater 50 is provided in hot water storage tank 5. Heater 50
Has a helical structure in a part thereof. Since the heater 50 has the spiral structure as described above, the hot water in the hot water storage tank 5 can be heated more powerfully and faster than the heater having the linear structure alone, and thus the preparation time for extraction can be shortened. The spiral structure is located in the upper part of the hot water storage tank 5, for example, in the upper half region of the hot water storage tank 5. In this way, by bringing the spiral portion close to the outflow passage 52, hot water having a high temperature can be efficiently supplied to the extraction cup 100.

Next, the structure near the bottom of the hot water storage tank 5 is
Description will be made with further reference to FIG. FIG. 15 shows a vertical cross section of the hot water storage tank 5 and a nut 58 attached to the bottom of the hot water storage tank 5, and the side surfaces of the drain cock 57 and the operating lever 55. Drain cock 57
Connects the drain pipe 56 to the connection cylinder 57A.

The nut 58 has a horizontal surface 58A and a cylindrical portion 58B extending in the vertical direction. In the horizontal plane 58A, the disk is partially notched from the outer peripheral portion toward the inside.
X has a formed shape. In FIG. 16, nut 5
8 shows a plan view of FIG. The nut 58 has a hole penetrating in the vertical direction by forming a notch 58X in the horizontal surface 58A so as to be connected to the hollow portion in the tubular portion 58B. The wall surface of the lower portion of the hot water storage tank 5 has an inclination. The operation lever 55 is opened, and the hot water storage tank 5
When the hot water is discharged from the drain pipe 57 to the drain pipe 56, the hot water is collected at the center of the bottom of the hot water storage tank 5 due to the inclination of the lower wall surface. And at the bottom center,
The hot water collected in the vicinity of the nut 58 is guided to the drain cock 57 from the cavity inside the tubular portion 58B through the notch 58X. Accordingly, when the operation lever 55 is opened, the hot water in the hot water storage tank 5 does not remain, and the drain pipe 56 passes through the drain cock 57.
Will be led to.

FIG. 17 shows an enlarged view of the connecting portion between the steam pipe 59 and the water storage tank 3. The steam pipe 59 is used for the water storage tank 3.
The inner diameter of the portion 59A connected to the water storage tank 3 side is made smaller. As a result, even if the hot water in the hot water storage tank 5 enters the steam pipe 59, the hot water is stored in the hot water storage tank 3
You can avoid flowing in. Therefore, even if a large amount of hot water is mixed in the steam pipe 5 even temporarily, the steam pipe 5 serves as a hot water circulation path, or water enters the water storage tank 3 up to the vicinity of the connection with the steam pipe 5. Even when the water is stored, it is possible to avoid the situation where hot water (or water) is circulated between the water storage tank 3 and the hot water storage tank 5. As a result, water circulates between the water storage tank 3 and the hot water storage tank 5,
It is possible to avoid a situation in which the extraction is not started unless the heater 50 of the hot water storage tank 5 heats the water in the water storage tank 3 to the same temperature as the hot water in the hot water storage tank 5. Steam pipe 5
In order to guide a large amount of steam in the water storage tank 3, the portion of the steam pipe 59 where the inner diameter changes, such as the portion 59A, is preferably located near the water storage tank 3.
The position where the steam pipe 59 and the steam pipe 59 are connected is more preferable.

FIG. 18 shows an enlarged view of the outflow passage 52 provided in the upper part of the hot water storage tank 5. The outflow path 52 is the pipe 5
It is connected with 3. In the vicinity of the outflow passage 52, a sensor hole 54A in which the temperature sensor 54 is set is formed. The temperature sensor 54 is not shown in FIG.

Since the outflow passage 52 is connected to the pipe 53, the lower end of the outflow passage 52 is an opening on the hot water storage tank 5 side of a pipe through which hot water flows to the gear pump 6. A rectifying member 52A is attached to the lower portion of the outflow passage 52 so as to face the opening at the lower end of the outflow passage 52 in the vertical direction at a distance from the opening. By mounting the rectifying member 52A, when the hot water in the hot water storage tank 5 is sucked from the lower end of the outflow passage 52, the hot water is not introduced into the outflow passage 52 from the vertical direction (the arrow P direction in FIG. 18). Specifically, the hot water is mainly introduced into the outflow passage 52 from a direction along the inner wall of the rectifying member 52A (direction of arrow Q in FIG. 18).
As a result, even if bubbles are generated in the hot water storage tank 5 when the hot water is heated, the bubbles will be discharged from the outflow path 52 and the pipe 53.
It is possible to avoid being sucked by the gear pump 6 via the.
In the extraction device 1, the gear pump 6 is used to introduce a predetermined amount of hot water into the extraction cup 100. Then, the extraction device 1 includes the rectifying member 52A.
By providing the air pump, it is possible to prevent the air from being sent to the gear pump 6, and thereby a predetermined amount of hot water can be accurately introduced into the extraction cup 100.

Next, the control contents of the overall operation performed in the extraction device 1 will be described. 19 and 20, the CPU (central processes) included in the extraction device 1 is shown.
The flowchart of the control process of the general operation performed by (singunit) is shown. In addition, the said CPU can electrically control operation | movement of all the members in the extraction apparatus 1.

In the following description of the control process, the setting switch (setting SW) is used in the extraction device 1 so that the water supply to the water storage tank 3 can be manually fed by the user.
The switch is a switch provided on the circuit board 66 for setting whether or not to correspond to an automatic system for connecting a predetermined water supply device.

A water level detection switch (water level detection SW)
Is a switch that is turned on when the water level sensor 30 is detecting water, and the detection output is output to a predetermined circuit on the circuit board 66. It is possible to detect whether or not the water level in the water storage tank 3 is up to the height at which the water level sensor 30 is installed, based on the detection output of the water level detection switch. In addition, the water level sensor 30 is installed in the water storage tank 3 at a relatively lower portion in the present embodiment.

Further, the door switch (door SW) is a switch for detecting that the drawer 29 is in the position suitable for the extracting operation, and the drawer 29 is housed in the extracting chamber 70 and is in the position suitable for the extracting operation. Turns on when there is, and turns off when the drawer 29 is pulled out from the appropriate position.
To be done.

The front switch (front SW) is the switch 78, and the rear switch (rear SW) is the switch 77. Here, the operation of the switches 77 and 78 will be described in detail with reference to FIG. 7 again in association with the movement mode of the tooth plate 75. The switch 78 connects the plate 78A with the arrow RB.
By pressing in the direction, ON-OFF is switched. The switch 77 is switched on and off by pressing the plate 77A in the direction of arrow RA. The tooth plate 75 is provided with a convex portion 76 on the side surface on the switch 77, 78 side.

A start switch (start SW)
Is a switch that is turned on by pressing the start button 21 or the start button 22.

When the gear motor 73 rotates in a certain direction and the tooth plate 75 moves in the direction of arrow RB, the front end of the convex portion 76 presses the plate 78A in the direction of arrow RB.
Is turned on. As a result, the power supply to the gear motor 73 is stopped. Note that when the tooth plate 75 moves in the direction of the arrow RA from this state and the pressing of the plate body 78A by the convex portion 76 is released, the switch 78 is turned off.

On the other hand, when the gear motor 73 rotates in the opposite direction to the above direction and the tooth plate 75 moves in the direction of arrow RA, the rear end of the convex portion 76 presses the plate 77A in the direction of arrow RA ( 7), the switch 77 is turned on. As a result, the power supply to the gear motor 73 is stopped. In addition, when the tooth plate 75 moves in the direction of the arrow RB from this state and the pressing of the plate body 77A by the convex portion 76 is released,
The switch 77 is turned off.

That is, when the gear plate 73 moves due to the rotation of the gear motor 73, the switch 77,
ON-OFF of 78 is switched. The tooth plate 75
From the position where the projection 76 presses the plate 77A.
It will move within a range up to the position where A is pressed.

Further, the cup detection switch (cup detection S
W) is a switch that is turned on when the lever 86A is housed in the main body of the switch 86. That is, the presence or absence of the extraction cup 100 and the extraction cup 100
Is a switch for detecting whether or not is in a position suitable for the extraction operation.

Referring again to FIG. 19, when power is externally applied to the extraction device 1, the CPU firstly executes step S
1 (hereinafter, step will be omitted), setting switch ON /
Detects OFF. Whether or not to apply electric power to the extraction device 1 from outside can be switched by operating a power switch 99 (see FIG. 3 etc.) attached to the rear portion of the extraction device 1. Then, if the setting SW is ON (the extraction device 1 is set to manually supply water to the water storage tank 3), the process proceeds to S3. On the other hand, if the setting SW is OFF (the extraction device 1 is set to automatically supply water to the water storage tank 3), the process proceeds to S2.

In S2, the CPU outputs a signal to open the solenoid valve for water supply, and advances the processing to S3. The electromagnetic valve for water supply is a valve connected to the water storage tank 3 and is opened to introduce water into the water storage tank 3 and closed to stop the introduction of water into the water storage tank 3.

At S3, the CPU continues at S4 until the detection output of the water level detection SW is turned on, that is, until the presence of water at the position of the water level sensor 30 is detected. Is turned on, and the process proceeds to S5.

In S5, as in S1, the setting SW is turned ON.
/ OFF is detected, and if it is ON, the process proceeds to S8, and if it is OFF, the process proceeds to S6. In FIG. 19, the case where the setting SW is ON is described as the case where the CPU determines YES.

In S6, by referring to a predetermined timer, the process waits for 15 seconds after the process of S5. Then, after 15 seconds have elapsed, a signal for closing the solenoid valve for water supply described above is output in S7, and the process proceeds to S8.

In S8, the CPU determines whether or not the water temperature detected by the temperature sensor 54 exceeds 97 ° C., and the water temperature is 9 ° C.
If the temperature is 7 ° C. or lower, the heater 50 is turned on to start heating in S9, and the preparing LED (lamp 24) is turned on in S10. The heating in S9 is continued until it is determined in S11 that the water temperature has reached 97 ° C. Then, the water temperature is 97 in S11.
When it is determined that the temperature reaches ℃, the CPU determines in step S12 that the heater 5
0 is turned off, and the process proceeds to S13.

From the above, in the extraction device 1, S
In the processing of 1 to S12, the water storage tank 3 in the setting SW
The control content changes according to the setting content of the water supply mode to the. That is, when the setting SW is set to ON, heating is started in response to the detection of water at the position where the water level sensor 30 is installed. On the other hand, when the setting SW is set to OFF, the water level sensor 3
1 after detecting that there is water at the position where 0 is installed
After the solenoid valve for water supply is opened for 5 seconds to supply water, the solenoid valve for water supply is closed and heating is started. From this, in the present embodiment, the CPU configures the introduction signal output unit, and the setting SW configures the water introduction setting unit. Further, the case where the setting SW is set to OFF corresponds to the case where the water introduction setting unit is set to output the water introduction signal.

Then, in S13, the CPU causes the lamp 25
Is lit, and in S14, it is detected whether or not the door SW is turned off. If it is OFF, the process proceeds to S15,
If it has not been detected that it has been turned off even once from the previous extraction operation, the process returns to S8.

In S15, the CPU waits for the door SW to be turned ON, and advances the processing to S16. CP in S16
U blinks the lamp 25 and advances the process to S17.
In S17, the CPU detects whether or not the start SW is turned on. The CPU repeats the processing of S16 to S17 until it detects that the start SW is turned on, and when it detects that the start SW is turned on, advances the processing to S18.

In S18, the gear motor 73 is driven in the normal direction. The forward rotation means rotating the tooth plate 75 in a direction to move it forward. As a result, the tooth plate 75 is moved to the position shown in FIG.
The state shown in 0 changes to the state shown in FIG.

Then, in step S19, the CPU turns on the previous SW.
When it is detected that the gear has been turned N, in S20, the gear motor 73
Is stopped and the process proceeds to S21.

In S21, the CPU determines whether or not the cup detection SW is ON, and if it is ON, S2
After executing the extraction operation in 2, the process proceeds to S24. S
Details of the processing content of the extraction operation 22 will be described later with reference to FIG. On the other hand, if the cup detection SW is not turned on, the CPU notifies an error by a buzzer or the like in S23, and advances the processing to S24.

In S24, the CPU drives the gear motor 73 in the reverse direction until the rear SW is turned on (when YES is determined in S25), the rotation of the gear motor 73 is stopped in S26, and the process proceeds to S27.

In S27, it is determined whether or not the water level detection SW is turned on, and if it is turned on, the process proceeds to S8, and if not turned on, the process proceeds to S1.

In the processing described above, the drive of the gear motor 73 is stopped by turning on the front SW or the rear SW. In the present embodiment, the driving of gear motor 73 is stopped in two stages. Gear motor 7
The stop of driving of No. 3 will be described with reference to FIG.
FIG. 22 is a circuit diagram of a portion related to driving the gear motor 73 in the circuit provided on the circuit board 66.

In the circuit diagram shown in FIG. 22, the gear motor 7
3, switches 77 and 78, discharge resistors 177 and 178,
The relay 170 and the integrated circuit (integrated circuit)
(t: IC) 175 is connected. Switch 77,7
8 is configured to close the circuit when the plate members 77A and 78A are pressed by the convex portion 76 and open the circuit when the pressing is released. Relay 170
Is a switch 1 for changing the rotation direction of the gear motor 73.
71, 172 are included. The switches 171 and 172 are
Three contact points 171A-171C, 172A-
172C. The IC 175 is the gear motor 73.
Controls ON / OFF of driving. The rotation direction of the gear motor 73 is controlled by controlling the opening / closing of the circuit by the switches 171 and 172 according to a control signal from a circuit (not shown).

When the gear motor 73 is driven in the normal rotation direction, the switch 171 has contact points 171A and 171B.
And the switch 172 connects the contact 172A and the contact 172B. On the other hand, when the gear motor 73 is driven in the reverse direction, the switch 171, the contact 17
1B and contact 171C are connected, and in switch 172,
The contact point 172B and the contact point 172C are connected. The contacts P1 and P2 in the circuit shown in FIG. 22 are connected to a circuit capable of supplying DC power. That is, the gear motor 73
The driving direction of the gear motor 73 is reversed by reversing the direction of the current flowing through the gear motor 73.

When the drive of the gear motor 73 is stopped, the output from the IC 175 is turned off. In addition,
In the present embodiment, in addition to this, opening / closing of the circuit by the switches 77 and 78 can be switched.

Specifically, when the drive of the gear motor 73 in the normal direction is stopped, the convex portion 76 presses the plate member 78A so that the switch 78 closes the circuit. As a result, in the gear motor 73, the supply of electric power is stopped by the IC 175, and the current remaining around the gear motor 73 is consumed by the discharging resistor 178. In the circuit shown in FIG. 22, when the gear motor 73 is driven in the normal rotation direction,
A current flows through the gear motor 73 in the direction of arrow L2 in the figure. Therefore, when the switch 78 closes the circuit, the diode 178A prevents the current remaining around the gear motor 73 from being efficiently consumed by the discharging resistor 178 and flowing into the gear motor 73.

On the other hand, when the driving of the gear motor 73 in the reverse direction is stopped, the convex portion 76 presses the plate 77A so that the switch 77 closes the circuit. This allows
In the gear motor 73, the supply of electric power is stopped by the IC 175, and the current remaining around the gear motor 73 is consumed by the discharging resistor 177. In the circuit shown in FIG. 22, when the gear motor 73 is driven in the reverse direction, a current flows through the gear motor 73 in the direction of arrow L1 in the figure. Therefore, when the switch 77 closes the circuit, the diode 1
Due to 77A, the electric current remaining around the gear motor 73 is efficiently consumed by the discharging resistor 177,
It can be prevented from flowing into 3.

As described above, in the present embodiment, the driving of the gear motor 73 is stopped by using the IC 175.
It is carried out in two stages, one using switches 77 and 78. As a result, the gear motor 73 can be reliably stopped when it should be stopped.
Is reliably stopped at the standby position shown in FIG. 10 or FIG. 11 or the position at the time of extraction operation.

FIG. 21 is a flow chart of the subroutine of the extraction operation process of S22. Hereinafter, the content of the extraction operation process will be described in detail.

In the extraction operation process, the CPU S221
Then, it is determined whether or not the start SW is turned on because the start button 21 corresponding to hot is pressed, and if so, the process proceeds to S222. On the other hand, if not, the process proceeds to S224.

In S222, the CPU causes the extraction cup 10
After the hot water is fed to the gear pump 6 in 0, a predetermined amount of hot water is introduced for 20 seconds,
In S223, by switching the valve of the three-way solenoid valve 60, the introduction needle 65 and the intake hole 61 are connected, the air is sent to the extraction cup 100 by the gear pump 6 for 10 seconds, and the process returns.

On the other hand, in S224, the CPU starts the start S
W was turned on by the start button 2 for ice cream
It is determined whether or not 2 is pressed. If so, the process proceeds to S225. In addition, S
If it is not determined in 224 that the start button 22 is pressed, the CPU returns the process to S221 again.

At S225, in the extraction cup 100,
By sending hot water to the gear pump 6 to introduce a predetermined amount of hot water for 6 seconds, S2
At 26, wait 2 seconds. Then, after introducing a predetermined amount of the rest of the hot water into the extraction cup 100 for 12 seconds, the valve of the three-way solenoid valve 60 is switched to connect the introduction needle 65 and the intake hole 61. Then, the gear pump 6 is caused to send air to the extraction cup 100 for 10 seconds, and the process is returned.

The extraction apparatus 1 can be set so that different amounts of hot water are introduced into the extraction cup 100 for each of hot and ice. FIG. 23 shows a circuit diagram of a part of the circuit provided on the circuit board 66 in the extraction device 1 for setting the amount of hot water to be introduced.

The circuit shown in FIG. 23 includes a motor 81 for driving the gear pump 6, an IC 10 and a transistor 9.
0, 98, switches 91-97, resistors 11-17, and resistors 18, 19 are included. Transistor 9
0 and 98 are connected to a circuit (ICE control circuit) for controlling the extraction operation for ice and a circuit (HOT control circuit) for controlling the extraction operation for hot, respectively. Further, the IC 10 is connected to a circuit (extraction control circuit) for controlling the entire extraction operation.

The transistor 90 includes switches 91 to 9
3 and resistors 11 to 13 are connected in series. The transistor 98 includes switches 94 to 97 and a resistor 14
.About.17 are connected in series. The resistors 11 to 17 are connected in parallel with the resistor 18 and in series with the resistor 19.

In the extraction device 1, the transistor 90 is turned on when the ice extraction operation is performed. Further, the voltage supplied to the motor 81 at this time is a combined resistance of any one of the resistors 11 to 13 and the resistor 18, the resistor 19,
Determined by being divided by. Motor 8
The voltage value supplied to No. 1 is a voltage value that drives the gear motor 6, and therefore corresponds to the amount of hot water introduced into the extraction cup 100. That is, when the ice extraction operation is performed, the circuit is closed by any of the switches 91 to 93 to set the extraction amount in the ice extraction operation. In the extraction device 1, the transistor 98 is turned on when the hot extraction operation is performed. And
Similar to the ice extraction operation, the extraction amount in the hot extraction operation is set by closing the circuit of any of the switches 94 to 97. The extraction amount in each case is determined by appropriately adjusting the resistance values of the resistors 11 to 17.

That is, the switches 91 to 97 constitute a hot water amount designating unit for designating the amount of hot water to be sent to the gear pump 6 in one hot water supply operation. It is preferable that the user can set which of the switches 91 to 97 is to close the circuit.

Further, timing charts in the extraction operation processing shown in FIG. 21 are shown in FIGS. 24 and 25. Note that FIG. 24 corresponds to the hot extraction operation, and FIG.
Corresponds to the extraction operation for ice cream. 24 and 25, the drive mode of the gear motor 73 and the three-way solenoid valve 60 are shown.
The driving mode and the driving voltage of the gear pump 6 are shown.

Referring to FIG. 24, when the hot extraction operation process is started, gear motor 73 is driven in the forward direction for about 1 second. As a result, the fixing member 64 descends to a position suitable for the extraction operation. After that, the three-way solenoid valve 60
The pipe 63 is connected to the pipe 53, and the gear pump 6 is driven with a drive voltage of 18 V for 20 seconds. As a result, S222
Hot water is supplied to the extraction cup 100 for 20 seconds as described above.

Thereafter, the three-way solenoid valve 60 connects the pipe 63 to the intake hole 61, and the gear pump 6 is driven at a drive voltage of 22 V for 10 seconds. Thereby, as described in S223, air is sent into the extraction cup 100 for 10 seconds. After that, the gear motor 73 is driven in the reverse direction for about 1 second, so that the fixing member 64 is raised to the standby position.

Referring to FIG. 25, when the ice extraction operation process is started, the gear motor 73 is driven in the forward direction for about 1 second. As a result, the fixing member 64 descends to a position suitable for the extraction operation. After that, the three-way solenoid valve 60
The pipe 63 is connected to the pipe 53, and the gear pump 6 is driven with a drive voltage of 12 V for 6 seconds. Thereby, the hot water is supplied to the extraction cup 100 for 6 seconds as described in S225. After that, the drive of the gear pump 6 is stopped for 2 seconds so as to correspond to the processing of S226, and the drive is again performed at the drive voltage of 12 V for 12 seconds so as to correspond to the processing of S227.

After that, the three-way solenoid valve 60 connects the pipe 63 to the intake hole 61, and the gear pump 6 is driven at a drive voltage of 22 V for 10 seconds. Thereby, as described in S223, air is sent into the extraction cup 100 for 10 seconds. After that, the gear motor 73 is driven in the reverse direction for about 1 second, so that the fixing member 64 is raised to the standby position.

In each of the hot or ice brewing operations described above, the brewing operation is performed 30 seconds after the fixing member 64 is lowered to the position suitable for the brewing operation, and in the last 10 seconds of the brewing operation. , Extraction cup 100
Air is sent to. In the last 10 seconds, the drive voltage of the gear pump 6 when sending air to the extraction cup 100 is higher than the drive voltage when sending hot water. Thereby, the air is strongly sent to the extraction cup 100. Therefore, a larger amount of the extraction liquid remaining in the extraction cup 100 can be supplied to the cup 400 or the like.

Further, the extraction amounts for hot and ice are the same as the gear pump 6 when hot water is supplied within the same time.
It can be changed by changing the voltage value for driving. The drive voltage of the gear pump 6 is changed as described with reference to FIG. As described above, in the present embodiment, the extraction operation is performed within the same time whether it is for hot or ice, or when the extraction amount changes.

In the ice extracting operation shown in FIG. 25, the supply of hot water is stopped by stopping the drive of the gear pump 6 for 2 seconds during the extracting operation. With this, for example, when obtaining the coffee extract, the coffee beans in the extraction cup 100 can be steamed in these 2 seconds, and the flavor of the obtained extract can be improved.

In the above-described embodiment, the gear pump is used as the pump for supplying hot water to the extraction cup 100, but any other type of pump may be used as long as it is a pump for supplying a specified amount of hot water. Good.

The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

[Brief description of drawings]

FIG. 1 is a perspective view of an extraction device according to an embodiment of the present invention.

2 is a front view of the extraction device of FIG. 1. FIG.

3 is a right side view of the extraction device of FIG. 1. FIG.

FIG. 4 is a partial perspective view of the extraction device of FIG.

5 is a diagram schematically showing the internal structure of the extraction device of FIG.

FIG. 6 is a front view of the extraction device of FIG. 1 with a front surface portion of an exterior part removed.

7 is a plan view of the extraction device of FIG. 1 with an upper surface portion of an exterior portion removed.

FIG. 8 is a right side view of the extraction device of FIG. 1 with the right side surface portion of the exterior part removed.

FIG. 9 is a view showing the vicinity of the drawer in a state where the drawer is drawn out in the extraction device of FIG.

FIG. 10 is a diagram for explaining a change in height of the fixing member according to rotation of the gear in the extraction device of FIG. 1.

FIG. 11 is a diagram for explaining a change in height of the fixing member according to rotation of the gear in the extraction device of FIG. 1.

FIG. 12 is a view for explaining a state in which the fixing member drawer partially contacts the extraction device of FIG. 1;

13 is a diagram showing a positional relationship among a partition plate, a pump case, and a circuit board in the extraction device of FIG.

14 is a diagram showing the internal structure of the pump case of FIG.

FIG. 15 is a view for explaining the structure near the bottom of the hot water storage tank of FIG.

16 is a plan view of the nut of FIG.

FIG. 17 is an enlarged view of a connection portion between the steam pipe and the water storage tank of the extraction device of FIG. 1.

18 is an enlarged view of the vicinity of the outflow passage provided in the upper part of the hot water storage tank of the extraction device of FIG. 1.

FIG. 19 is a flowchart of a general operation control process executed by a CPU included in the extraction device of FIG. 1.

FIG. 20 is a flowchart of a general operation control process executed by a CPU included in the extraction device of FIG. 1.

21 is a flowchart of a subroutine of the extraction operation process of FIG.

22 is a circuit diagram of a portion related to driving of the gear motor in the circuit provided on the circuit board of the extraction device of FIG. 1. FIG.

23 is a circuit diagram of a portion of the circuit provided on the circuit board of the extraction device of FIG. 1 for setting the amount of hot water introduced.

FIG. 24 is a timing chart in the extraction operation process of the extraction device of FIG.

25 is a timing chart in the extraction operation process of the extraction device of FIG.

FIG. 26 is a diagram schematically showing a hot water supply mechanism in a conventional extraction device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 extraction device, 2 exterior part, 3 water storage tank, 5 hot water storage tank, 6 gear pump, 11-17 resistance, 20 operation panel, 21 and 22 start button, 23 window, 29
Drawer, 30 Water level sensor, 31 Cup holder, 3
2 cup receivers, 50 heaters, 51, 53, 62, 6
3 pipe, 52 outflow passage, 52A rectifying member, 58 nut, 59 steam pipe, 60 three-way solenoid valve, 64 fixing member, 64A pin, 65 introducing needle, 66 circuit board, 7
0 extraction chamber, 73 gear motor, 74 gear, 75 tooth plate, 76 convex part, 77, 78, 91-97, 171, 1
72 switches, 81 motors, 100 extraction cups, 177,178 discharge resistors.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shunji Shiono             No. 1 Shoda, Shoji-cho, Seika-cho, Kyoto Prefecture             Ground 2 Sanyo Home Tech Co., Ltd. (72) Inventor Koji Itakura             No. 1 Shoda, Shoji-cho, Seika-cho, Kyoto Prefecture             Ground 2 Sanyo Home Tech Co., Ltd. (72) Inventor Yasunori Imaizumi             No. 1 Shoda, Shoji-cho, Seika-cho, Kyoto Prefecture             Ground 2 Sanyo Home Tech Co., Ltd. (72) Inventor Tatsuhisa Fukuda             No. 1 Shoda, Shoji-cho, Seika-cho, Kyoto Prefecture             Ground 2 Sanyo Home Tech Co., Ltd. (72) Inventor Fumio Shibayama             7-7 Minatojima Nakamachi, Chuo-ku, Kobe-shi, Hyogo               UCC Uejima Coffee Co., Ltd. (72) Inventor Kiyoshi Matsuo             7-7 Minatojima Nakamachi, Chuo-ku, Kobe-shi, Hyogo               UCC Uejima Coffee Co., Ltd. F-term (reference) 4B004 AA11 BA04 BA06 BA09 CA30

Claims (9)

[Claims] 1. An extraction device for obtaining an extraction liquid through the filter by supplying hot water into an extraction container, which is a container including a powder raw material and a filter, A boiling water tank for storing the hot water, a heater provided in the boiling water tank, a water storage tank for storing water to be supplied to the boiling water tank, and whether a specific amount of water is stored in the water storage tank A sensor that detects whether or not, an introduction signal output unit that outputs a water introduction signal that is a signal for introducing water to the water storage tank, and whether or not to output a water introduction signal to the introduction signal output unit And a heater control unit that controls the operation of the heater. When the water introduction setting unit is set to output the water introduction signal, the introduction signal is set. Output unit,
After the sensor detects that the water in the water storage tank has reached the specific amount, outputs the water introduction signal until a predetermined time elapses, and then stops the output of the water introduction signal to control the heater. The unit controls the heater to start heating after the output of the water introduction signal is stopped, and when the water introduction setting unit is set not to output the water introduction signal, the heater control unit Is an extraction device that causes the heater to start heating in response to the sensor detecting that the water in the water storage tank has reached the specific amount. 2. The extraction device according to claim 1, wherein the heating portion of the heater includes a portion having a spiral shape. 3. An extraction device for obtaining an extraction liquid through the filter by supplying hot water to the inside of an extraction container which is a container containing a powder raw material and a filter, A boiling water tank for storing the hot water, a water storage tank for storing water for supplying to the boiling water tank, and a pipe connected from the boiling water tank to the water storage tank, the steam in the boiling water tank is A steam pipe for introducing into a water storage tank, wherein the steam pipe is partially made smaller in inner diameter on the water storage tank side than on the water boiling tank side. 4. The extraction apparatus according to claim 3, wherein the steam pipe has a smaller inner diameter on the side of the water storage tank than on the side of the boiling water tank at a portion connected to the water storage tank. 5. The water storage tank according to claim 1, wherein at least a part of the water storage tank is configured so that the amount of water in the water storage tank can be visually recognized from the outside of the extraction device. Extractor. 6. An extraction device for obtaining an extraction liquid outside the extraction container by supplying hot water into the extraction container, which is a container containing a powdered raw material and a filter, An extraction device comprising: a boiling water tank for storing the hot water; and a heater provided in the boiling water tank, wherein a heating portion of the heater includes a portion having a spiral shape. 7. The boiling water tank is provided with an outlet for letting out the stored hot water in order to supply the hot water to the extraction container, and the heating portion of the heater is the outlet of the boiling water tank. The extraction device according to claim 6, further comprising a portion having the spiral shape in the vicinity thereof. 8. An extraction device for obtaining an extraction liquid through the filter by supplying hot water to the inside of an extraction container, which is a container containing a powder raw material and a filter, A boiling water tank for storing the hot water, a heater provided in the boiling water tank, a pump that sucks the hot water in the boiling water tank and sends it to the extraction container, and a hot water from the boiling water tank to the pump An extraction device comprising: a suction pipe for flowing; and a rectifying member that is a member that vertically faces an opening of the suction pipe on the side of the boiling water tank. 9. The hot water tank further includes an opening / closing unit that is connected to the hot water tank and opens / closes the hot water tank in order to switch whether or not to discharge hot water in the hot water tank. A discharge hole is formed in a portion to be connected to, and a nut for connecting to the opening / closing portion is provided, and the nut has a notch connected to the discharge hole from the outer peripheral portion of the nut in the boiling water tank. The extraction device according to any one of claims 1 to 8, which is formed.