JPH03133409A - Drink dripping device - Google Patents

Abstract

PURPOSE:To drop a temperature of drip hot water dispersed by a hot water dispersing means to a temperature being suitable for generating a drink, and to improve the quality of a drip drink by staring in advance drink hot water from a boiler means in a hot water storage tank, and also, opening vapor pressure in the hot water storage tank. CONSTITUTION:When a first control means 8 sets a hot water pressure feed means and an opening means to an operating state, a temperature of drink hot water in a boiler 1b required for dropping properly a temperature of drip hot water stored in a hot water storage tank 4 to a value being suitable for generating a drink can be secured in advance. Also, in the case a second control means 9 executes the control so that a high pressure vapor pressure feed means 7 is set intermittently to an operating state, power of drip hot water dispersed into a drip container 3a from a hot water dispersing means 2 becomes strong under an intermittent high pressure vapor pressure feed by the high pressure vapor pressure feed means 7, becomes weak under an intermittent high pressure vapor pressure feed stop by the high pressure vapor pressure feed means 7, and dispersion of drip hot water into the drip container 3a from the hot water dispersing means 2 is executed uniformly to a raw material in the drip container 3a in accordance with a variation of its power, therefore, the quality of a drink can be equalized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a machine for producing beverages such as coffee, and more particularly to a beverage dripping device suitable for dripping beverages such as coffee in this machine.

(Prior art) Conventionally, for example, in a coffee drip device, water is supplied from a water tank to a boiler tank, the water in the boiler tank is heated by a heater to make hot water, and the hot water from the boiler tank is used to store coffee grounds. There is a system in which coffee is dripped into a drip container (for example, see Japanese Patent Laid-Open No. 116316/1983).

(Problem to be solved by the invention) However, in such a configuration, hot water from the boiler is directly supplied into the drip container, so if the temperature of the hot water from the boiler is too high, the hot water will penetrate into the coffee grounds. The temperature of the cup also rises, and as a result, there is a problem in that it is not possible to drip delicious, high-quality coffee. In addition, hot water from the boiler is forced into the drip tank by high-pressure steam inside the boiler.
As the amount of hot water in the boiler and the level of the hot water fluctuate, the supply of hot water into the drip container becomes unstable, making it difficult to obtain high-quality coffee.

Therefore, in order to cope with the above-mentioned problems, the present invention attempts to always ensure a high quality beverage in a beverage drip device.

(Means for solving the problem) In solving the problem, the structural features of the present invention are as follows:
As shown by the solid line in FIG. 1, there is a boiler means 1b which is supplied with potable water from a water supply source 1a and produces high-pressure steam and potable hot water; A beverage comprising a hot water sprinkling means 2 for sprinkling hot water, and a drip container 3a which accommodates a raw material for a beverage such as coffee, and drips hot water from the hot water sprinkling means 2 onto the raw material into a pouring tank 3b as a beverage. In the drip device, there is provided a hot water storage tank 4 for storing potable hot water as drip hot water when potable hot water is force-fed from the boiler means 1b, and a hot-water storage tank 4 in which the potable hot water is force-fed from the boiler means 1b to the hot water storage tank 4 in an operating state. Allowable hot water pressure feeding means 5 and hot water storage tank 4
a release means 6 for releasing the steam pressure in the boiler in an operating state; a high-pressure steam pressure sending means 7 for delivering high pressure steam from the boiler means 1b to the hot water storage tank 4 in an operating state; The 111th control device to be activated together.
When the control means 8 and the control of the first control means 8 are completed, both the hot water sprinkling means 2 and the high-pressure steam pressure feeding means 7 are put into operation! ! This is because a second control means 9 is provided.

(Function) By configuring the present invention in this way, the hot water pressure feeding means 5
is activated under the control of the first control means 8, and pressure-feeds potable hot water from the boiler means 1b to the hot water storage tank 4, and the opening means 6 is activated under the control of the first control means 8, and the hot water is stored. The steam pressure in the tank 4 is released, and the second control means 9 puts both the hot water sprinkling means 2 and the high-pressure steam pressure feeding means 7 into operation upon completion of the control by the first control means 8. For this reason, the high-pressure steam feeding means 7 forces the high-pressure steam from the boiler means 1b into the hot water storage tank 4 and causes the drip hot water in the hot water storage tank 4 to flow into the hot water sprinkling means 2. Hot water is sprinkled on the beverage raw material in the drip container 3a and dripped into the pouring tank 3b as a beverage.

(Effects) As described above, potable hot water from the boiler means 1b is stored in the hot water storage tank 4 in advance and the vapor pressure in the hot water storage tank 4 is released, so that the hot water is sprayed by the hot water sprinkling means 2. The temperature of the drip water has been reduced to a temperature suitable for beverage production. Therefore, by sprinkling the drip hot water, the drip beverage from the drip container 3a to the pouring tank becomes delicious and of good quality.

In addition, since the potable hot water from the boiler means 1b is supplied into the drip container 3a via the hot water storage tank 4 as described above, it is independent of the amount of potable hot water in the boiler means 1b and fluctuations in the hot water level. 5. You can get high quality drinks.

Further, in the present invention, as shown by the two-dot chain line in FIG. In the case where the first control means 8 controls the hot water pressure feeding means 5 and the opening means 6 to both be in an operating state in response to the determination by the determination means 8b, In response to the determination by the determining means 8b that the temperature detected by the hot water temperature detecting means 8a has reached the predetermined hot water temperature, the first control means 8 puts both the hot water pressure feeding means 5 and the opening means 6 into an operating state. . Therefore, as mentioned above, the boiler 1 is required to appropriately lower the temperature of drip hot water stored in the hot water storage tank 4 to a value suitable for producing beverages.
The temperature of the drinking hot water in room b can be secured in advance.

Further, in the present invention, when the second control means 9 controls the high-pressure steam pressure feeding means 7 to be intermittently activated, the drip hot water sprayed from the hot water sprinkling means 2 into the drip container 3a is The force becomes strong when the high-pressure steam force feeding means 7 intermittent high-pressure steam pressure feeding, and becomes weak when the high-pressure steam force feeding means 7 intermittent high-pressure steam pressure feeding is stopped. Therefore, the drip hot water from the hot water sprinkling means 2 into the drip container 3a is uniformly sprinkled on the raw material in the drip container 3a according to the above-mentioned change in force, and as a result,
The quality of the beverage can be made uniform, and hot water can be automatically supplied in the same way as hot water is supplied manually by a skilled person in order to fully bring out the flavor and aroma from the raw material powder.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. FIG. VI2 and FIG. 3 show an example in which the present invention is applied to a coffee dispenser.

The coffee dispenser is equipped with a boiler 1o, and this boiler 10 connects a water supply pipe PO from a water supply source (not shown) under selective opening of a water supply valve v1 consisting of a normally closed electromagnetic valve.
Drinking water is pumped through the heater He(
The stored potable water is heated and stored as high-pressure steam and boiling water by the selective heating action of the pump (see Figure 3). Thermal hot water storage tank 2
o is a hot water pipe P extending from the inside of the boiler 1o
L.

Hot water is selectively forced and stored from the boiler 1o through the upstream part of the hot water supply pipe P2, the heat-retaining hot water supply valve V2 (consisting of a normally closed electromagnetic valve), and the downstream part of the hot water supply pipe P2.

The drip device 30 includes a drip hot water storage tank 31,
This drip hot water storage tank 31 is connected to a hot water supply pipe P from the boiler 10.
1. The upstream part of the hot water supply pipe P3, the drip hot water storage valve V3 (consisting of a normally closed electromagnetic valve), the downstream part of the hot water supply pipe P3, and the supply pipe P6
The steam supply valve V5 (consisting of a normally open electromagnetic valve) is located at the upstream part of the air supply pipe P4 through which hot water is selectively pumped from the boiler 10 and stored as drip hot water, and which extends from the inside of the steam in the boiler 1o. , the downstream part of the air supply pipe P4 and the supply pipe P6
High pressure steam is selectively pumped from the boiler 10 through the boiler. At the upper part of the peripheral wall of the drip hot water storage tank 31, an air vent valve v13 (consisting of a normally open solenoid valve) is installed.
The air vent valve V]3 is connected to the drip hot water storage tank 3 through the upstream part of the air vent pipe P7.
The high pressure steam existing in the upper part of the air vent pipe P7 is selectively released through the downstream part of the air vent pipe P7.

The drip container 32 is closed at its upper end opening by a lid 33, and a filter (not shown) into which coffee powder is introduced is provided inside the drip container 32. The rotating nozzle 34 is connected to the drip hot water storage tank 3
The rotary nozzle 34 is rotatably supported within the lid 33 at the tip of a sprinkling pipe P8 extending from the bottom wall of the lid 33 into the lid 33. Under selective opening of the interposed drip v11 (consisting of a normally closed solenoid valve),
Drip hot water is pumped from the drip hot water storage tank 31 through the hot water sprinkling pipe P8 and is sprayed onto the coffee grounds in the filter while rotating at nine speeds. This means that the drip container 32 drips coffee into a pouring tank 41, which will be described later. In addition, in FIG. 2, the reference numeral 35 indicates the drip container 32.
Shows the handle.

The pouring device 40 includes a pouring tank 41 and a pouring tank 4.
It has a heat insulating tank 42 coaxially provided on the outside of the coffee machine 1, and the pouring tank 41 stores coffee dripped from the drip container 32 as described above. The pouring valve V17 is composed of a normally closed electromagnetic valve, and by selectively opening the pouring valve V17, the coffee in the pouring tank 41 is transferred to the pouring pipe P.
9 into a coffee cup (not shown).

The heat retention tank 42 is connected to the supply pipe PL from the heat retention hot water storage tank 20.
Upstream part of O, heat retention valve V7 (consisting of a normally closed solenoid valve)
Then, hot water is selectively supplied through the downstream part of the supply pipe PLO and stored as warm water. About this.

The heat-retaining tank 42 is heated to the pouring tank 41 by its stored warm water.
This means keeping the coffee inside warm.

However, the heat retention tank 42 is located on the side of the heat retention hot water storage tank 20, and the surface level of the warm water in the heat retention tank 42 is maintained at the same horizontal plane as the surface level of the hot water in the heat retention hot water storage tank 20. It has become.

Next, the electric circuit configuration of the coffee dispenser will be explained with reference to FIG. 3.1! The power switch 50 is operated upon startup of the coffee dispenser to provide a power-on signal. This means that power supply from the power supply to the electric circuit elements of the coffee dispenser is started by operating the power switch 50. Each water level switch 60u,
601 are normally open type float switches, and the water level switch 601 is closed when the drinking water stored in the boiler 10 falls to a predetermined lower limit water level to generate a lower limit water level detection signal, while the water level switch 60u is closed when the potable water stored in the boiler 10 rises to a predetermined upper limit water level, and generates an upper limit water level detection signal. However, the predetermined upper limit water level is determined so as to form a steam accommodation space portion 10a above the surface of the drinking water within the boiler 1o. The hot water temperature sensor 70 detects the actual temperature of hot water in the boiler 10 and generates a hot water temperature detection signal. The A-D converter 80 digitally converts the hot water temperature detection signal from the hot water temperature sensor 70 into a hot water temperature digital signal.

The hot water level switch 90 is a normally open type float switch, and this hot water level switch 90 closes when the surface level of the hot water in the hot water storage tank 20 reaches a predetermined level and detects the hot water level. generate a signal. However, the predetermined hot water level corresponds to the amount of hot water in the heat retaining tank 42 necessary to properly keep the coffee in the pouring tank 41 warm.

Each drip scene switch 110u, 110m, 1lo1
Both are normally open type float switches, and the drip hot water level switch 1101 closes when the surface level of drip hot water in the drip hot water storage tank 31 is at a predetermined lower limit level to generate a lower limit level detection signal. The drip hot water level switch 110m closes when the surface level of drip hot water in the drip hot water storage tank 31 is at a predetermined intermediate level, and generates an intermediate level detection signal. Further, the drip hot water level switch 110U is closed when the surface level of drip hot water in the drip hot water storage tank 31 is at a predetermined upper limit level, and generates an upper limit level detection signal. However, the predetermined upper limit level is
A vapor space communicating with the upstream part of the air vent pipe P7 is formed above the surface of the drip hot water in the drip hot water storage tank 31, and the amount of the drip hot water is determined to correspond to the amount of coffee poured out for 10 cups. It is being Further, the predetermined intermediate level is determined to correspond to the time when the amount of drip hot water in the drip hot water storage tank 31 reaches the amount equivalent to five cups of coffee. The dispensing switch 120 is operated when dispensing coffee from the dispensing tank 41 and generates a dispensing request signal.

The microcomputer 130 operates the power switch 50, both water level switches 60u, 601 . Warm water level switch 90. Drip switch 100. Each drip hot water level switch 110u, 1
10m, 1101 and the A-D converter 80, and during this execution, the water supply valve Vl, the heater He, the heat retention hot water supply valve V2.
Drip hot water storage valve V3. Heat retention hot water storage valve V7. Drip valve ■11° Steam supply valve V5. Performs arithmetic processing necessary for drive control of each of the drive circuits 150 to 220 respectively connected to the air vent valve V13. On the other hand, microcomputer 1
40 executes the second computer program in cooperation with the power switch 5o and the pouring switch 120 according to the flowchart shown in FIG. , 240 and performs calculation processing necessary for drive control. However, the first computer program described above is stored in the ROM of the microcomputer 130 in advance, while the second computer program is stored in the ROM of the microcomputer 140 in advance. Note that the microcomputers 130 and 140 start executing the first and second computer programs, respectively, in response to a power-on signal from the power switch 50.

In this embodiment configured as described above, when a power-on signal is generated from the power switch 50, the microcomputer 130 starts executing the first computer program at step 3o○ according to the flowchart of FIG. At the same time, microcomputer 140 starts executing the second computer program at step 500 according to the flowchart of FIG. Therefore, the first computer program executes the boiler control processing routine 310.
, the microcomputer 130 starts the drive circuit 15.
0 to perform the arithmetic processing necessary to open the water supply valve v1, and to cause the heater He to exert a heating effect via the drive circuit 160 under the generation of the water level detection signal from the water level switch 601. Perform calculation processing. Then, water supply valve v1
By opening the water supply pipe P, drinking water from the water supply source is
While feeding the boiler 10 through O, the heater He
heats the potable water in the boiler 10. Note that, in step 500a, the microcomputer 140 repeats the determination of "NOJ" based on the non-occurrence of the dispensing request signal (referred to as dispensing request signal Ka) from the dispensing switch 120.

After that, a water level detection signal is generated from the water level switch 60u, and (1! (hereinafter referred to as water temperature T) of the water temperature digital signal from the A-D converter 80 reaches a predetermined high temperature To (T
R of microcomputer 130 as O=110℃
(previously stored in OM), the microcomputer 130 determines rYESJ in step 320. At this time, an amount of hot water specified by the predetermined water level and high pressure steam floating in the steam space 10a are present in the boiler 1o. After the above determination, the microcomputer 130 closes the water supply valve v1 and closes the heater He.
Performs various control processes for stopping the. As a result, the pressure feeding of drinking water to the boiler 10 and the heating of hot water in the boiler 10 are stopped.

At this stage, if the warm water level detection signal is not generated from the warm water level switch 90, the microcomputer 1
30 is determined to be "N○" in step 330, and in step 330a, a warming hot water supply valve opening signal and a warming hot water storage valve opening signal are generated. Then, the thermal hot water supply valve v2 responds to the thermal hot water supply valve opening signal from the microcomputer 130, is driven by the drive circuit 170 and opens, and the hot water in the boiler 10 is passed through the hot water supply pipes PL and P2 into the thermal hot water storage tank 20. At the same time, the hot water storage valve v7 responds to the hot water storage valve opening signal from the microcomputer 130, and the drive circuit 3
00, the hot water tank 20 is opened and the hot water in the hot water storage tank 20 is forced into the pouring tank 42 through the supply pipe P10. In such a state, when a warm water level detection signal is generated from the warm water level switch 90, the microcomputer 130
is determined to be rYEsJ in step 340, and step 3
At step 40a, the warming hot water supply valve v2 is closed due to disappearance of the warming hot water supply valve opening signal. At this time, the surface level of the hot water in the heat retention tank 42 matches the surface level detected by the heat retention phase switch 90 of the hot water in the heat retention tank 20 .

Note that when the first computer program proceeds to step 400 (see FIG. 5) via step 350, if the drip request signal (hereinafter referred to as drip request signal Da) from the drip switch 100 has not been generated, the microcomputer 130 repeats the determination of "N○" in step 410.

When a drip request signal is generated from the drip switch 100, the microcomputer 130 determines rYEsJ in step 410, determines rYEsJ in step 420 as in step 320, and determines drip hot water in step 421 as rYEsJ. Valve open signal Ea
and generates an air vent valve opening signal Fa. Then, the drip hot water storage valve v3 responds to the drip hot water storage valve opening signal Ea from the microcomputer 130, is driven by the drive circuit 180 and opens, and the hot water in the boiler 10 is transferred to each hot water pipe P.
Drip hot water storage tank 3 through I, P3 and supply pipe P6
At the same time, the air vent valve V13 is driven and opened by the drive circuit 220 in response to the air vent valve opening signal Fa from the microcomputer 130, and the air in the drip hot water storage tank 31 is released through the air vent pipe P7.

Thereafter, when a first hot water level detection signal (hereinafter referred to as first hot water level detection signal Ga1) is generated from the drip hot water level switch 110u, the microcomputer 130 performs step 43.
0, it is determined that rYEsJ, and in step 431, when the drip hot water storage valve opening signal Ea and the air vent valve opening signal Fa disappear, both the drip hot water storage valve v3 and the air vent valve V13 are closed. As a result, the drip hot water storage tank 31
Inside, drip hot water at about 95 degrees Celsius under atmospheric pressure is stored enough to pour out 10 cups. In such a case, the supply of hot water from the boiler 1o to the drip hot water storage tank 31 is performed at step 420 as described above.
It is possible to secure in advance the temperature of the hot water in the boiler 10 necessary for lowering the temperature of the drip water in the drip hot water storage tank 31 to a value suitable for producing good quality and delicious coffee, which is always done after the determination of EsJ. .

After the arithmetic processing in step 431, the microcomputer 130 sequentially generates the drip valve opening signal Ha and the steam supply valve opening signal Ia in steps 432 and 433.

The drip valve Vll is driven and opened by the drive circuit 210 in response to the drip valve opening signal Ha, and
The steam supply valve v5 is driven by the drive circuit 190 to open in response to the steam supply valve opening signal ra. Therefore, the high-pressure steam in the boiler 1o is forced into the drip hot water storage tank 31 through the air supply pipe P4 and the supply pipe P6 after the steam supply valve v5 is opened. Drip hot water is force-fed to the rotary nozzle 34 through the hot water distribution pipe P8 when the drip valve Vll is opened.

Then, the rotary nozzle 34 receives the pressure-fed drip hot water from the hot water distribution pipe P8 and rotates, distributing the same drip hot water to the drip container 3.
Spray hot water onto the coffee powder in 2 to uniformly penetrate the coffee powder. In such a case, drip hot water storage tank 3
As mentioned above, the temperature of the drip water in the drip container 32 is around 95°C, so the coffee powder undergoes a good chemical change due to the temperature of the hot water sprinkled on the coffee grounds. The coffee that drips into the pouring tank 41 is stored in the pouring tank 41 as delicious coffee without bitterness.Furthermore, since the drip container 32 is closed by the lid 33, the coffee aroma is transferred to the outside. It's hard to escape.

After that, when the second hot water level detection signal (hereinafter referred to as second hot water level detection signal Ga2) disappears from the drip hot water level switch 110m, the microcomputer 130 determines that the remaining amount of drip hot water in the drip hot water storage tank 31 is 5 cups. rYES at step 440 based on the judgment that the dispensing amount has decreased to .
J, and in steps 441 and 442, the steam supply valve v5 and the drip valve Vll are sequentially closed by the disappearance of the steam supply valve opening signal Ia and the drip valve opening signal Ha, and the hot water sprinkling by the rotary nozzle 34 is stopped. . Therefore, dripping of coffee by the drip container 32 is stopped.

After the arithmetic processing in step 442, when the microcomputer 130 resets and starts its built-in first timer Xa in step 443, the first timer Xa starts counting at the same time as the reset. However, the first timer
When the time measured in step a reaches a predetermined rest time (pre-stored in the ROM of the microcomputer 130 as the time required to obtain the effect of steaming coffee grounds by sprinkling hot water), the microcomputer 130 selects "YES" in step 450.
J, and in steps 451 and 452, the drip valve Vll and the steam supply valve v5 are opened in the same manner as described above by generating the drip valve opening signal Ha and the steam supply valve opening signal Ia. Therefore, similarly to the above, drip hot water in the drip hot water storage tank 31 from the boiler 10 when the steam supply valve V5 is opened is injected into the coffee grounds in the drip container 32 through the rotary nozzle 34 when the drip valve Vll is opened. The dripping of coffee into the pouring tank 41 is started again. When the third hot water level detection signal Ga3 from the drip hot water level switch 110u disappears due to such coffee dripping, the microcomputer 130 Step 460
In step 461, the first timer Xa is reset and started. Therefore, this first
Timer Xa starts counting at the same time as it is reset again. After that, the time measured by the first timer
When the time required for the drip hot water in the drip hot water tank 31 to be completely sprayed (which is stored in advance in the ROM of the microcomputer 130) is reached, the microcomputer 130 completely sprays the drip hot water in the drip hot water storage tank 31. In step 470, rYEsJ
In each step 471, 472, the steam supply valve v5 and the drip valve Vll are closed by the disappearance of the steam supply valve opening signal Ia and the drip valve opening signal Ha, and in step 473, the count data Ca is changed to " 10”. In such a case, the count data Ca represents the number of cups of coffee in the pouring tank 41. Therefore, Ca=10 means that 10 cups of coffee are stored in the pouring tank 41. Note that the coffee in the brewing tank 41 is maintained at an appropriate temperature by the hot water in the heat-retaining tank 42.

At this stage, when a dispensing request signal (hereinafter referred to as dispensing request signal Ka) is generated from the dispensing switch 120, the microcomputer 140 determines rYEsJ at step 500a, and executes step 510 at step 510. Upon receiving the information that Ca=10 in step 473 from the microcomputer 130, the second computer program advances to step 520 via step 511. At this time, if the dispensing request signal Ka is generated from the dispensing switch 120, the microcomputer 140 performs step 52.
0, it is determined to be rYEsJ, and in step 521, an extraction valve opening signal Ma is generated, and in step 522, the built-in second timer Ya is reset and started. For this reason,
This second timer Ya starts counting at the same time as it is reset. Then, the spout valve V17 is activated by the microcomputer 1.
In response to the spout valve opening signal Ma from 40, the drive circuit 23
0 to open and pour out the coffee in the pouring tank 41 into the coffee cup through the pouring pipe P9.

Thereafter, when the time measured by the second timer Ya reaches the 'fi1 dispensing time (pre-stored in the ROM of the microcomputer 140 as the time required to dispense a cup of coffee when Ca>5), the microcomputer 140 is determined as "rYES" in step 530, and step 531
At step 532, the spout valve V17 is closed due to disappearance of the spout valve opening signal Ma, and at step 532, the count data Ca (= 1
0) by "IJ", update this fA calculation result as Ca, and in step 540, rYESJ is calculated based on Ca=9.
It is determined that Hereinafter, if the dispensing request signal Ka is repeatedly generated from the dispensing switch 120, the microcomputer 1
40 is the second computer program step 520~
The cyclic calculation process of 540 is repeated. Therefore, coffee is poured into each coffee cup sequentially in the same manner as described above.

In this state, the determination in step 540 is “N○
”, the microcomputer 140 performs step 5.
At 41, a warning signal Ja is generated, and in response to this, a warning lamp L is turned on. Therefore, in the pouring tank 41,
It can be visually confirmed that only 5 cups of coffee remain.

Furthermore, when the dispensing request signal Ka is generated from the dispensing switch 120, the microcomputer 140 executes step 550.
In step 551, the extraction valve V17 is opened by generating the extraction valve opening signal Ma, and in step 552, the second timer Ya is reset and started. Then, with the pouring valve V17 opened, coffee is poured into the next coffee cup in the same manner as described above. Also,
The second timer Ya starts counting at the same time as it is reset.

When the time measured by the second timer reaches the second dispensing time, the microcomputer 140 selects rYESJ in step 560.
Then, at step 561, the spout valve V17 is closed due to disappearance of the spout valve opening signal Ma, and at step 562, "1" is subtracted from the count data Ca, and this subtraction result is set as Ca.
and in step 570, based on Ca=4, rY
It is identified as EsJ. However, the second pouring time mentioned above is the same as the first pouring time.
The microcomputer 1 is determined to be longer than the pouring time.
40 ROM in advance. In this way, the second
The reason why the pouring time is made longer than the first pouring time is to make the amount of coffee poured in the pouring tank 41 as uniform as possible over the same time period. Below, pouring switch 12
If the dispensing request signal Ka is repeatedly generated from 0, the microcomputer 140 repeats the cyclic operations of steps 550 to 570. Therefore, pouring coffee into each subsequent coffee cup is repeated in the same manner as described above. Second
Since the pouring time is made longer than the first pouring time as described above, there is no variation in the pouring amount for each cup depending on the amount of coffee remaining in the pouring tank 41. In such a case, start dripping after storing 10 cups of drip hot water in the drip hot water storage tank 31, and switch the pouring time from the first pouring time to the second pouring time around Ca=5. Based on this assumption, all the coffee can be poured out while making the amount of coffee poured out uniform for each cup of coffee without providing an extra sensor in the pouring tank 3a.

Thereafter, when the determination in step 570 becomes "NO", the microcomputer 140 clears Ca=O in step 571. Also, based on Ca=O in step 562, the determination in step 570 is rY
After becoming ESJ.

If the determination in step 550 is "NO", the microcomputer 140 determines in step 510 that Ca=
O, and the second computer program executes step 5.
Advance to 80.

Next, a modification of the first embodiment will be explained. In this modification, the flowchart of FIG. 5 for specifying a part of the first computer program described in the first embodiment is As shown in Fig. 8, its structural feature lies in the fact that it has been partially modified. The rest of the structure is the same as that of the first embodiment.

In this modified example configured in this way, step 431 of the first computer program is similar to the first example.
When the arithmetic processing in microcomputer 1 is completed, microcomputer 1
30 opens the drip valve Vll by generating the drip valve opening signal Ha (see FIGS. 5 and 7) in step 432, and simultaneously resets the first timer Xa in step 432a (see FIG. 7). Let it be timed. Thereafter, when the time measured by the first timer Xa reaches a predetermined waiting time (for example, 10 seconds, which is stored in the ROM of the microcomputer 130 in advance), the microcomputer 130
is determined to be rY'EsJ in step 432b, and in step 433 the steam supply valve v5 is opened by generation of the steam supply valve opening signal Ia, and in step 433a, the first timer Xa is caused to time simultaneously with its reset. When the time measured by the first timer Xa reaches a predetermined supply time (for example, 0°3 seconds, which is stored in the ROM of the microcomputer 130 in advance), the microcomputer 13
0 is determined to be rYEsJ in step 433b, "NO" is determined in step 440, and the steam supply valve v5 is closed by disappearance of the steam supply valve opening signal Ia in step 440a. In other words, after the drip valve Vll is opened, the steam supply valve V5 is opened when a predetermined waiting time (10 seconds) has elapsed, and this opening is then maintained for a predetermined supply time (0.3 seconds). Only while the steam supply valve v5 is open while Vll is open, hot water is sprayed from the drip hot water storage tank 31 into the drip container 32 via the rotary nozzle 34 by force-feeding high-pressure steam from the boiler 10 to the drip hot water storage tank 31. It will be done.

Below, the microcomputer 130 controls the drip valve Vll.
The cyclic arithmetic processing of each step 4328 to 440a is repeated under the control of . Therefore, drip hot water is injected into the drip container 32 for a predetermined supply time (0°3 seconds) every time a predetermined waiting time (10 seconds) elapses.

Therefore, the jet of drip hot water from the rotating nozzle 34 is only vigorously emitted during each predetermined dispensing time and mainly reaches the peripheral portion of the coffee grounds in the drip container 32, and becomes weaker during each predetermined waiting time. It is directed towards the center of the coffee powder and stops. As a result, while maintaining a sufficient steaming effect on the coffee by intermittent sprinkling of drip hot water into the drip container 32, an expert can manually powder the coffee in order to fully bring out the taste and aroma of the coffee. The same effect as pouring drip hot water spirally from the periphery to the center can be automatically ensured.

Thereafter, as in the first embodiment, when the determination in step 450 is rYEsJ, the microcomputer 130 generates the drip valve opening signal Ha in step 451 (see FIGS. 5 and 8) to open the drip valve Vll.
After opening, at each step 451a to 460a until the determination with rYEsJ at step 460,
By repeating the calculation process substantially similar to the calculation process in each step 432a to 440a, it is possible to achieve the eyebrow shaping effect by intermittent injection of drip hot water from the rotary nozzle 34 as described above.

Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10. In addition to the configuration of the drip device 30 described in the first embodiment, the drip device 30A includes Hot water distribution pipe P8. Drip valve v11. Drip container 32. A sprinkling pipe P 8a corresponding to the lid 33 and the rotary nozzle 34 and having the same configuration as these;
Drip valve v12° drip container 32a, lid 33a2
It includes a rotating nozzle 34a and a handle 35a. However, the hot water sprinkling pipe P8a branches from the upstream portion of the hot water sprinkling pipe P8.

The drip device 30B has the same configuration as the drip device 30A, and the drip hot water storage tank 31a (corresponding to the drip hot water storage tank 31) of the drip device 30B is connected from the boiler 10 to the hot water pipe P1, the upstream part of the hot water pipe P3a, Drip hot water storage valve V4. Hot water is selectively force-fed and stored through the downstream part of the hot water supply pipe P3a and the supply pipe P6a, and also from the boiler 10 to the upstream part of the air supply pipe P4, the air supply pipe P4a.
Upstream of natural air supply valve V6. High pressure steam is selectively fed through the downstream part of the M trachea P4a and the supply valve Pea.

Further, the air vent pipe pH and the air vent valve V16 of the drip device 30B correspond to the air vent pipe 7 and the air vent valve V13 of the drip device 30A, respectively, and each hot water sprinkler pipe P12. P 12a, each drip valve V 14. V 15, each drip container 32b.

32c, each lid body 33b, 33c, each rotating nozzle 34b, 34c, and handle 35b, 35c,
Each hot water distribution pipe P8 of the drip device 30A. P8a, each drip valve V11. ．． V12, each drip container 32.32a,
This corresponds to each lid body 33, 33a, each rotary nozzle 34.34a, and handle 35.35a, respectively.

Further, each of the pouring devices 40A, 40B, and 40C has the same configuration as the pouring device 40, and each of these pouring devices 4
Pour tanks 41a, 41b of 0A, 40B and 40G,
and 41c (corresponding to the pouring tank 41) are located directly below each drip container 32a, 32b, and 32c, respectively.

In addition, the heat retention tanks 42 a, 42 b, and 42 c of each pouring device 40A, 40B, and 40G correspond to the heat retention tank 42 of the pouring device 40, and each of the pouring devices 40A, 40G corresponds to the heat retention tank 42 of the pouring device 40.
0B and 40C spout pipe P13. PI3 and PI3
corresponds to the pouring pipe P9 of the pouring device 40, and each pouring device 40
A, 40B and 40C spout valves V18°VIO and V2
O corresponds to the pouring valve V17 of the pouring device 40, and the hot water supply pipe P16. of each pouring device 40A, 40B, and 40C. PI3
and PI3 corresponds to the hot water supply pipe P10 of the pouring device 40, and the hot water storage valve V of each pouring device 40A, 40B, and 40C.
8. V9 and VIO correspond to the hot water storage valve v7 of the pouring device 40.

Next, the electric circuit configuration in this second embodiment will be explained with reference to FIG. 10. Each drip switch 100
a, 100b, and 100c are similar to the drip switches 100 described in the first embodiment, and these drip switches 100a, 100b, and 100c drip coffee from the respective drip containers 32a, 32b, and 32c. When the output voltage is set, each of the output terminals is closed to generate a drip request signal. Each drip hot water level switch 110ua
, 110ma, and 1101a are the drip water level switches 110u described in the first embodiment.

110m, 1101 and 9 are similar, and each of these drip water level switches 110 ua, 110ma
, 1101a are closed when the surface level of drip hot water in the drip hot water storage tank 31a is at the upper limit level, intermediate level, and lower limit level, respectively. A second and a third hot water level detection signal are generated, respectively. Each pouring switch 120a
, 120b, 120c are similar to the dispensing switch 120 described in the first embodiment, and each dispensing switch 120a, 120b, 120c is connected to each dispensing tank 41.
When coffee is to be dispensed from a, 4lb, and 41c, each of them is closed to generate each dispensing request signal.

In the microcomputer 130, the first computer program described in the first embodiment executes the flowcharts shown in FIGS.
As shown in Figures 1 and 12, the first
It is stored in advance as a modified computer program. Therefore, this microcomputer 130 executes the first modified computer program in FIGS. 4 and 10A.

Power switch 50 according to each flowchart shown in FIGS. 11 and 12. Both water level switches 60u.

601, A-D converter 80. heat retention phase switch 90,
Drip switch 100. 100a, 100b
, 100 Q, each drip level switch 110
U.

110m, 1101, 110ua, 110um.

During this execution, each drive circuit 150-220. Drip hot water storage valve V4. Steam supply valve V6. Each thermal insulation hot water storage valve V8. V9°vlo, each drip valve V12. V14. V15. air vent valve v1
Each drive circuit 180a, 190a, connected to
200a ~ 200c, 210a ~ 210c, 220
Performs calculation processing necessary for drive control of a.

The microcomputer 140 includes the second computer program described in the first embodiment.

The flowchart of FIG. 6 is modified as shown in FIGS. 13 to 16 and stored in advance as a second modified computer program. The microcomputer 140 executes the first changing computer program in cooperation with the power switch 50, the dispensing switches 120 to 120c, and the microcomputer 130 according to the flowcharts shown in FIGS. 13 to 16. During execution, each drive circuit 230, 240, pouring valve V
18. V19. V2O, each warning lamp L a-
Each drive circuit 230a to 240 connected to Lc
performs arithmetic processing for driving c. The other configurations are the same as those of the first embodiment.

In the second embodiment configured as described above, the first
Similarly to the embodiment, when the determination in step 330 of the first modified computer program is NO3, the microcomputer 130 sends a thermal hot water supply valve open signal and each thermal hot water storage valve open signal in step 330b (corresponding to step 330a in FIG. 4). The signal Ba=Bd is generated. Then, as in the first embodiment, when the hot water supply valve v2 is opened,
The hot water in the boiler 10 is fed under pressure into the hot water storage tank 20 through the re-heating water supply pipes PL and P2, and each hot water storage valve V7
．． V8. V9. VIO responds to each hot water storage valve opening signal Ba''Bd from the microcomputer 130 and is driven by each drive circuit 200 to 200c to open and supply hot water in the hot water storage tank 20 to each supply pipe P10.P.
16. P17. Each thermal tank 4 through P18
2 to 42c. Thereafter, when the determination in step 340 becomes rYEsJ, the microcomputer 130 closes the heat retention hot water supply valve v2 by eliminating the heat retention hot water supply valve opening signal in step 340b. At this time, the surface level of the hot water in each of the heat retention tanks 42 to 42c matches the surface level detected by the hot water level switch 90 of the hot water in the heat retention tank 20. Next, when the first modified computer program proceeds to step 400 as in the first embodiment, when a drip request signal is generated from the drip switch 100, the microcomputer 130 determines rYESJ in step 410a.

After that, the microcomputer 130 performs each step 4.
At steps 20 to 480, the same arithmetic processing as in each step 420 to 480 of the flowchart of FIG. 5 described in the first embodiment is performed, and the same operation and effect as described in the first embodiment achieve the effect.

Also, as described above, when the first change computer program reaches step 400, the drip switch 100a
When a drip request signal (hereinafter referred to as drip request signal Db) is generated, the microcomputer 130 determines "YESJ" in step 410a.Thereafter, as in the first embodiment, the microcomputer 130 determines "YESJ" in step 431 (FIG. 5 and FIG. 1
1), the microcomputer 130 opens the drip valve V12 via the drive circuit 210a in response to generation of the drip valve opening signal Hb in step 432c (corresponding to step 432 in FIG. 5). At step 433 (see FIGS. 5 and 11), the steam supply valve v5 is opened by generating the steam supply valve opening signal Ia, as in the first embodiment. For this reason, boiler 10
When the steam supply valve v5 is opened, the high-pressure steam inside the drip hot water storage tank 31 will be fed under pressure through the air supply pipe P4 and the supply pipe P6.
When the drip valve V12 is opened, the drip hot water inside is force-fed to the rotary nozzle 34a through the hot water distribution pipe P8a.

Then, the rotary nozzle 34a receives the pressure-fed drip hot water from the sprinkling pipe P8a and rotates while spraying the drip hot water toward the coffee grounds in the drip container 32a to uniformly permeate the coffee grounds. This drip container 32 achieves the same effect as that of sprinkling drip hot water into the drip container 32 described in the first embodiment.
In the case of coffee dripping from the drip container 32 into the spouting container 41 described in the first embodiment, in response to coffee dripping from the drip container 32a into the spouting container 41a as hot water is sprinkled on the drip container 2a. The same effect can be achieved.

Next, step 440 (fifth step) is performed as in the first embodiment.
11), the microcomputer 130 performs step 451c.
At step 451 (corresponding to step 451 in FIG. 5), the drip valve V12 is opened by generating the drip valve opening signal Hb, and at step 452 (see FIGS. 5 and 11), the same operation as in the first embodiment is performed. The steam supply valve v5 is opened by generation of the steam supply valve opening signal Ia. Therefore, in the same manner as in the case of injecting drip hot water into the drip container 32 and restarting dripping of coffee from the drip container 32 into the pouring tank 41, the inside of the drip container 32a is The injection of drip hot water into the drip container 32a and the dripping of coffee from the drip container 32a into the pouring tank 41a are restarted.

Next, step 470 (fifth step) is performed as in the first embodiment.
11), the microcomputer 130 closes the steam supply valve v5 in step 471 by eliminating the steam supply valve opening signal Ia, as in the first embodiment, Step 472a
In step 473a (corresponding to step 472 in FIG. 5), the drip valve V12 is closed due to disappearance of the drip valve opening signal Wb, and in step 473a (corresponding to step 473 in FIG. 5)
Set the count data cb to "10" at . As a result, the drip hot water in the drip hot water storage tank 31 is completely sprinkled into the drip container 32a, and the drip hot water in the drip tank 41a
It can store 10 cups of coffee inside.

Further, after the first modified computer program proceeds to step 400 as described above, if the determination in step 410a is "NO", a drip request signal (hereinafter referred to as drip request signal Dc) is sent from the drip switch 100b. occurs, or the drip switch 1
When a drip request signal (hereinafter referred to as drip request signal Dd) is generated from 00c, the microcomputer 13
O is determined to be rYEsJ in step 410b.

Next, step 420 (fifth step) is performed as in the first embodiment.
12), the drip hot water storage valve opening signal Eb is detected in step 421a.
and generates an air vent valve opening signal Fb. Then, the drip hot water storage valve v4 responds to the drip hot water storage valve opening signal Eb from the microcomputer 130 and is driven by the drive circuit 180a to open, and the hot water in the boiler 10 is transferred to the drip hot water storage through the hot water supply pipes PI, P3a and the supply pipe P6a. At the same time, the air vent valve V16 receives the air vent valve opening signal F from the microcomputer 130.
In response to step b, the drive circuit 220a opens the drip hot water tank 31a to release the air inside the drip hot water storage tank 31a through the air vent pipe pH.

After that, j1 from drip scene switch 110ua
When the first hot water level detection signal (hereinafter referred to as the first hot water level detection signal Gbl) is generated, the microcomputer 130 determines that it is rYEsJ in step 430a, and in step 431b it outputs the drip hot water storage valve opening signal Eb and the air vent valve opening signal Fb. With each disappearance, both the drip hot water storage valve v4 and the air vent valve V16 are closed. As a result, drip hot water of about 95° C. under atmospheric pressure is stored in the drip hot water storage tank 31a so as to secure the pouring amount for 10 cups.

After the arithmetic processing in step 431b, the microcomputer 130 performs step 432d and step 4.
When the drip valve opening signal HC (or Hd) and the steam supply valve opening signal Ib are sequentially generated at 33c, the drip valve v
14 (or v15) in response to the drip valve opening signal He (or Hd), the drive circuit 210b (or 210
c) and opens the steam supply valve v6.
is the driving circuit 181 in response to the steam supply valve opening signal Ib.
90a to open the opening. Therefore, after the steam supply valve v6 is opened, the high pressure steam in the boiler 1° is
Since the drip hot water in the drip hot water storage tank 31a is forced to be fed into the drip hot water storage tank 31a through each air supply pipe P4a and the supply pipe P6a, the drip hot water in the drip hot water storage tank 31a is transferred to the drip valve v14 (
or v15), the hot water distribution pipe P12 (or P12) is opened.
a) and is fed under pressure to the rotating nozzle 34b (or 34c).

Then, the rotating nozzle 34b (or 34c) connects to the hot water distribution pipe P1.
The drip container 32b (or 32c) receives the pressure-fed drip hot water from P12a and rotates to transfer the same drip hot water to the drip container 32b (or 32c).
) Spray hot water onto the coffee powder inside the container to allow it to penetrate the coffee powder evenly. When using drip hot water tank 3
Since the drip hot water in 1a has a temperature of around 95° C. as described above, the coffee powder undergoes a good chemical change at the temperature of the hot water as described above. Therefore, the coffee dripped from the drip container 32b (or 32c) into the pouring tank 41b (or 41c) is stored in the pouring tank 41b (or 41c) as delicious coffee without bitterness. Also, the drip container 32b (or 32C) has a lid 33b (or 33C).
Since it is closed by c), it is difficult for the coffee aroma to escape to the outside.

Thereafter, when the second phase detection signal (hereinafter referred to as second hot water level detection signal Gb2) disappears from the drip phase switch 110ma, the microcomputer 130 determines that the remaining amount of drip hot water in the drip hot water storage tank 31a is equivalent to 5 cups. Based on the determination that the output amount has decreased, in step 440a
YESJ, and the steam supply valve opening signal Ib and the drip valve opening signal He(
or Hd), the steam supply valve v6 and drip valve v14 (or v15) are closed and the rotating nozzle 3 is closed.
4b (or 34c) is stopped. Therefore, dripping of coffee by the drip container 32b (or 32c) is stopped.

After the arithmetic processing in step 442b, the microcomputer 130 sets its built-in first timer xb in step 443.
When a reset is started at a, this first timer xb
starts counting at the same time as it is reset. When the time measured by the first timer xb reaches the predetermined rest time, the microcomputer 130 issues a message "YE" in step 45o.
S'', and in each step 451d and 452c, the drip valve V14 (or V15) and the steam supply valve v6 are operated in the same manner as described above by generating the drip valve opening signal Hc (or Hd) and the steam supply valve opening signal Ib. to be opened.

Therefore, as described above, when high-pressure steam is forced from the boiler 10 to the drip hot water storage tank 31a with the steam supply valve v6 open, the drip hot water in the drip hot water storage tank 31a flows through the drip valve v14 (or v15). ), the coffee powder in the drip container 32b (or 32c) is sprayed with hot water through the rotating nozzle 34b (or 34c), and the coffee drips into the pouring tank 41b (t is 41c) again. will be started.

When the third hot water level detection signal Gb3 from the drip hot water level switch 110ua disappears due to such dripping of coffee, the microcomputer 130 performs step 46.
rYESJ is determined at step 0a, and the first timer xb is reset and started at step 461a. Therefore, this first timer xb starts counting time again at the same time as it is reset. After that, when the time measured by the first timer xb reaches the predetermined delay time, the microcomputer 130.

Based on the judgment that the sprinkling of drip hot water in the drip hot water storage tank 31a has been completely completed, rY is determined in step 470.
ESJ is determined, and in each step 471a and 472b, the steam supply valve v6 and the drip valve v14 (or v15) are closed by disappearance of the steam supply valve opening signal Ib and the drip valve opening signal He (or Hd). , and step 473b
The count data Cc (or Cd) is set to "1o". Therefore, ten cups of coffee are stored in the pouring tank 41b (or 41c). Note that the coffee in this pouring tank 41b (or 41c) is
The temperature is maintained at an appropriate temperature by the hot water in the heat retaining tank 42b (or 42c).

At this stage, when the dispensing switch 120 generates the dispensing request signal Ka, the microcomputer 140
However, in step 500b (see FIG. 13), it is determined that the dispensing request signal Ka has been generated, and the second modified computer program is advanced to step 510, where the count data Ca is determined in the same manner as in the first embodiment. Thereafter, when the determination of "No" is made in step 520 or 550 as in the first embodiment, the microcomputer 140 changes the second modified computer program to step 550A (
(See Figure 13) and proceed to the dispensing switch 1 at the current stage.
From 20 onwards, the generation of the pouring request signal Ka is based on the extinction rY.
After determining EsJ or “N○”, press the pouring switch 12.
If the generation of the dispensing request signal (hereinafter referred to as dispensing request signal Kb) from 0a disappears, the microcomputer 1
40 is rYESJ or "N○" at step 550B.
Then, the second modified computer program proceeds to step 510a (see FIG. 14) or step 50ob (see FIG. 13).

When the second modified computer program proceeds to step 510a (corresponding to step 510 in FIG. 16) as described above, the microcomputer 140 executes step 473a.
The information that Cb=10 in microcomputer 1
30, the second modified computer program proceeds to step 520a via step 511a. At this time, if the dispensing request signal Kb is generated from the dispensing switch 120a, the microcomputer 140 determines rYEsJ in step 520a, generates the dispensing valve opening signal Mb in step 521a, and in step 522 Then, the built-in second timer Ya is reset and started. Then, the spout valve V18 is driven and opened by the drive circuit 230a in response to the spout valve opening signal Mb from the microcomputer 140, and the coffee in the spout tank 41a is poured into the coffee cup through the spout pipe P18. Pour out. Further, the second timer Ya starts counting at the same time as the second timer Ya is reset.

Thereafter, when the time measured by the second timer Ya reaches the first pouring time, the microcomputer 140 executes step 53.
0, it is determined that rYEsJ, and in step 531a, the extraction valve V17 is closed due to disappearance of the extraction valve opening signal Mb,
At step 532a, "1" is subtracted from count data Cb' (=10), this subtraction result is updated as cb, and at step 540a, rYESJ is determined based on Cb=9. Hereinafter, the dispensing request signal Kb from the dispensing switch 120a
If repeatedly occurs, the microcomputer 140 executes steps 520a to 520a of the second modification computer program.
The cyclic calculation process of 540a is repeated.

Therefore, coffee is poured into each coffee cup sequentially in the same manner as described above.

In this state, the determination in step 540a is rN
When OJ is reached, the microcomputer 140 generates a warning signal Jb in step 541a, and in response to this, the warning lamp La lights up.

Therefore, it is visually confirmed that only five cups of coffee remain in the pouring tank 41a. Furthermore, when the dispensing request signal Kb is generated from the dispensing switch 120a, the microcomputer 140 performs step 550a.
rYESJ is determined in step 551a, and the spout valve V18 is opened by the spout valve opening signal Mb in step 551a.
At 52, the second timer Ya is reset and started. Name and.

With the pouring valve V18 opened, coffee is poured into the next coffee cup in the same manner as described above. Further, the second timer Ya starts counting at the same time as the second timer Ya is reset.

When the time measured by the second timer Ya reaches the second dispensing time, the microcomputer 140 returns rYE in step 560.
sJ, and the spout valve opening signal M is determined in step 561a.
When b disappears, the spout valve V18 is closed, and step 562
At step a, "1" is subtracted from the count data cb, and this subtraction result is updated as cb, and at step 570a, Cb=4,
Based on this, it is determined as ``YESJ.'' Below, the dispensing switch 12
If the dispensing request signal Kb is repeatedly generated from 0a, the microcomputer 140 performs each step 550a to 57.
Repeat the circular operation of 0a. Therefore, pouring coffee into each subsequent coffee cup is repeated in the same manner as described above. Since the second pouring time is made longer than the first pouring time as described above, there is no variation in the pouring amount for each cup depending on the amount of coffee remaining in the pouring tank 41a. After that, when the determination in step 570a is rNOJ,
The microcomputer 140 performs c in step 571a.
Clear b=o. Also, step 520a or 55
If the determination at step 0a is "NO", the microcomputer 140 similarly determines "N" at step 550G.
O”. Therefore, at this stage, a dispensing request signal (hereinafter, dispensing request signal Kc) is sent from the dispensing switch 120b.
) has occurred, the microcomputer 14
0 is determined to be rYEsJ in step 550D, and the second modification computer program is changed to step 510b (fifteenth
(see figure), the count data Cc in step 473b is received from the microcomputer 130 and determined.

Accordingly, the microcomputer 140 executes the second modified computer program in step 51 based on Cc=10.
1b to step 520b. At this time, if the dispensing request signal Kc is generated from the dispensing switch 120b, the microcomputer 140 performs step 520b.
rYESJ is determined in step 521b, the spout valve opening signal Me is generated in step 521b, and the second timer Ya is reset and started in step 522. Then, the spout valve V19
is opened by the driving circuit 230b in response to the pouring valve opening signal Mc from the microcomputer 140, and the coffee in the pouring tank 41b is poured into the coffee cup through the pouring pipe P14. Further, the second timer Ya starts counting at the same time as the second timer Ya is reset.

Thereafter, when the time measured by the second timer Ya reaches the first pouring time, the microcomputer 140 executes step 53.
0, it is determined that rYESJ, and in step 531b, the extraction valve V19 is closed due to disappearance of the extraction valve opening signal Me.In step 532b, "1" is subtracted from the count data Cc (=10), and this The subtraction result is updated to Cc, and rYEsJ is determined based on Cc=9 in step 540b. Hereinafter, the dispensing request signal Kc is sent from the dispensing switch 120b.
When repeatedly generated, the microcomputer 140 changes steps 520b to 520b of the second modification computer program.
The cyclic calculation process of 540b is repeated.

Therefore, coffee is poured into each coffee cup sequentially in the same manner as described above.

In this state, the determination in step 540b is rN
When OJ is reached, the microcomputer 140 generates a warning signal Jc in step 541b, and in response to this, the warning lamp Lb is turned on by the drive circuit 240b. Therefore, it can be visually confirmed that only five cups of coffee remain in the pouring tank 4, 1b. Furthermore, when the dispensing request signal Kc is generated from the dispensing switch 120b, the microcomputer 140 operates in step 55.
0b is determined as rYESJ, and in step 551b, the spout valve V19 is opened by the generation of the spout valve opening signal Me,
In step 552, the second timer Ya is reset and started. Then, with the pouring valve V19 opened, coffee is poured into the next coffee cup in the same manner as described above.

Further, the second timer Ya starts counting at the same time as the second timer Ya is reset.

When the time measured by the second timer reaches the second dispensing time, the microcomputer 140 selects rYESJ in step 560.
Then, at step 561a, the spout valve V19 is closed due to disappearance of the spout valve opening signal Mc, and at step 562a, "1" is subtracted from the count data Cc, and this subtraction result is updated as Cc. At 570b, it is determined that "rYES" based on Cc=4. Below, the pouring switch 120b
If the dispensing request signal Kc is repeatedly generated from 550b to 570b, the microcomputer 140
Repeat the wi ring operation. Therefore, pouring coffee into each coffee cup of the cup is repeated in the same manner as described above.

Since the second pouring time is made longer than the first pouring time as described above, there is no variation in the pouring amount for each cup depending on the amount of coffee remaining in the pouring tank 41b. After that,
If the determination in step 570b is "No", the microcomputer 140 determines the Cc in step 571b.
Clear with =O. Also, step 52ob or 5
If the determination in step 50b is "NO", the microcomputer 140 similarly determines "in step 550E".
“NO” is determined. Therefore, at this stage, a dispensing request signal (hereinafter, dispensing request signal K) is sent from the dispensing switch 120C.
d) has occurred, microcomputer 1
40 is determined to be rYESJ at step 550F, and the second
Modify the computer program to step 510C (first
6), the count data Cd in step 473b is received from the microcomputer 130 and determined.

Therefore, the microcomputer 140 executes the second computer program in step 511c based on Cd=10.
The process then proceeds to step 520c.

At this time, a dispensing request signal Kd is sent from the dispensing switch 120c.
has occurred, the microcomputer 140 determines rYEsj in step 520c, and proceeds to step 52.
A spout valve opening signal Md is generated at step 1C, and step 522
Then, the second timer Ya is reset and started. Then, the spout valve V20 is driven and opened by the drive circuit 230c in response to the spout valve opening signal Md from the microcomputer 140, and the coffee in the spout tank 41c is poured into the coffee cup through the spout pipe P15. Pour out. Further, the second timer Ya starts counting at the same time as the second timer Ya is reset.

Thereafter, when the time measured by the second timer Ya reaches the first pouring time, the microcomputer 140 executes step 53.
0, it is determined that it is rYEsJ, and in step 531c, the spout valve V20 is closed by '/f4 extinction of the spout valve opening signal Mcl, and in step 532c, the count data Cd (=1
0), the subtraction result is updated as Cd, and rYEsJ is calculated based on Cd=9 in step 540c.
It is determined that Thereafter, if the dispensing request signal Kd is repeatedly generated from the dispensing switch 120c, the microcomputer 140 repeats the cyclic calculation process of steps 520c to 540c of the second modified computer program.

Therefore, coffee is poured into each coffee cup sequentially in the same manner as described above.

In this state, the determination in step 540c is "N
O'', the microcomputer 140 generates a warning signal Jd in step 541c, and in response, the warning lamp Lc is turned on by the drive circuit 240c. Therefore, it can be visually confirmed that only five cups of coffee remain in the pouring tank 41c. Furthermore,
When the dispensing request signal Kd is generated from the dispensing switch 120c, the microcomputer 140 determines rYESJ in step 550c, opens the dispensing valve V20 by generating the dispensing valve opening signal Md in step 551c, and opens the dispensing valve V20 in step 552. Then, the second timer Ya is reset and started. Then, with the pouring valve V20 opened, coffee is poured into the next coffee cup in the same manner as described above. Also,
The second timer Ya starts counting at the same time as it is reset.

When the time measured by the second timer Ya reaches the second dispensing time, the microcomputer 140 returns rYE in step 560.
SJ, and the spout valve opening signal M is determined in step 561c.
When d disappears, the spout valve V20 is closed, and step 562
At step 570C, "1" is subtracted from the count data Cd, and this subtraction result is updated as Cd. At step 570C, "YESJ" is determined based on Cd=4.

Thereafter, if the dispensing request signal Kd is repeatedly generated from the dispensing switch 120c, the microcomputer 140 repeats the cyclic calculations of steps 550c to 570G. Therefore, pouring coffee into each primary coffee cup is repeated in the same manner as described above. Since the second pouring time is made longer than the first pouring time as described above, there is no variation in the pouring amount for each cup depending on the amount of coffee remaining in the pouring tank 41c. Thereafter, when the determination in step 570c becomes "NO", the microcomputer 140 clears Cd=O in step 571G. Further, after the determination in step 520C or 550C is "NO", if the determination in step 550G is "NO",
Microcomputer 140 returns the second modified computer program to step 500b. Other effects are similar to those of the first embodiment.

In the above operation description, each drip switch 100 to 100 c ll [[[[[Next operation] and each pouring switch 120 to 120c I! [Although we have described the case where the following operations are performed, this is not limited to the case where each pouring tank 4
The order of operation of each drip switch 100-100C and the order of operation of each pouring switch 120-120C may be changed as appropriate depending on the state of pouring coffee from 1-41c. In such a case, both microcomputers 130
, 140 are configured so that operations can be performed independently, the operation of any one of the drip switches 100 to 100c and the operation of any one of the pouring switches 120 to 120c If drip control and pouring control are performed in parallel by performing one operation at the same time, each pouring tank 41 to 41
It is possible to seamlessly and smoothly pour out comprehensive coffee from c.

Next, a modification of the second embodiment will be explained. In this modification, FIG. 11 and the first
A feature of the structure is that the flowchart in FIG. 2 is partially modified as shown in FIGS. 17 to 20. The rest of the structure is the same as that of the second embodiment.

In this modified example configured in this way, step 4 of the first modified computer program is similar to the second embodiment.
When the arithmetic processing in step 31 is completed, the microcomputer 130 outputs the drip valve opening signal H in step 432C.
a (or Hb) (see FIGS. 11 and 17), the drip valve Vll (or V12) is activated, and the first timer Xa is activated in step 432e (see FIG. 17).
time at the same time as the reset. After that, the time measured by the first timer Xa is set to a predetermined waiting time (for example, 10 seconds).
When the microcomputer 130 reaches step 4,
32f is determined as "YES", and in step 433, the steam supply valve v5 is opened by generating the steam supply valve opening signal Ia, and in step 433d, the first timer Xa is reset and timed at the same time. However, this first timer
When the measured time of a reaches the predetermined supply time (for example, 0.3 seconds), the microcomputer 130 determines rYEsJ in step 433e, determines "N○" in step 440, and determines "N○" in step 440a. When the steam supply valve opening signal Ia disappears, the steam supply valve v5 is closed. In other words, after opening the drip valve v11 (or v12), the steam supply valve v is opened when a predetermined waiting time (10 seconds) has elapsed.
Since drip valve V11 (or V12) opens and then maintains this open state for a predetermined supply time (0.3 seconds).
Boiler 1 is opened only during the opening of steam supply valve v5.
By force-feeding high-pressure steam from the drip hot water storage tank 31 to the drip hot water storage tank 31, hot water is sprayed from the drip hot water storage tank 31 into the drip container 32 (or 32a) via the rotating nozzle 34 (or 34a).

Below, the microcomputer 130 controls the drip valve Vll.
(or v12) under the development of each step 4320 to 44
Repeat the cyclic calculation process of 0a. Therefore, drip hot water is sprayed into the drip container 32 (or 32a) for a predetermined supply time (0, 3 seconds) every time a predetermined waiting time (10 seconds) elapses.
seconds). Therefore, the rotating nozzle 34
The injection of drip hot water from (or 34a) is made vigorously only during each predetermined supply time and mainly reaches the peripheral portion of the coffee grounds in the drip container 32, and is weakened during each predetermined waiting time. It stops at the center of the coffee grounds. As a result, while maintaining a sufficient steaming effect on the coffee by intermittent sprinkling of drip hot water into the drip container 32, an expert can manually powder the coffee in order to fully bring out the taste and aroma of the coffee. The same effect as pouring drip hot water spirally from the periphery to the center can be automatically ensured.

After that, step 450 (1) is performed as in the second embodiment.
(See Fig. 11) When the NIOKEL determination becomes "YES", the microcomputer 130 executes step 451c (11th
18), the drip valve v11 (or v12) is opened by the generation of the drip valve opening signal Ha (or Hb).
After opening , until the determination with rYEsJ in step 460.

In each step 451c to 460a, each step 432
By repeating the arithmetic processing substantially similar to the arithmetic processing in steps 0 to 440a, it is possible to achieve the same effect as described above by intermittent injection of drip hot water from the rotary nozzle 34.

Further, as in the second embodiment, when the arithmetic processing in step 431b of the first modified computer program is completed, the microcomputer 130 outputs the drip valve opening signal He (or Hd) (FIGS. 12 and 19) in step 432b. (see), the drip valve v14 (or v
15) and step 432e (see Figure 19).
At this time, the first timer xb is caused to count time simultaneously with its reset. Thereafter, when the time measured by the first timer xb reaches a predetermined waiting time (for example, 10 seconds), the microcomputer 13o determines that the x step 432fi: is rYEsJ,
In step 433a, the steam supply valve v6 is opened due to the generation of the steam supply valve opening signal Ib, and in step 433e, the first timer xb is caused to time simultaneously with its reset. When the time measured by the first timer xb reaches a predetermined supply time (for example, 0°3 seconds), the microcomputer 130 determines rYEsJ in step 433f, rNOJ in step 440a, and 440
At step c, the steam supply valve v6 is closed due to disappearance of the steam supply valve opening signal Ib. In other words, after the drip valve v14 (or v15) is opened, the steam supply valve V6 is opened when the predetermined waiting time (10 seconds) has elapsed, and this opening is then continued for a predetermined supply time (0.3 seconds). Maintain the drip valve v
14 (or v15) and only while the steam supply valve v6 is open, the rotary nozzle 34b (or 34c) is transferred from the drip hot water storage tank 31a to the drip hot water storage tank 31a by force-feeding high-pressure steam from the boiler 10 to the drip hot water storage tank 31a. Hot water is sprinkled into the drip container 32b (or 32c) through the drip container 32b (or 32c).

Below, the microcomputer 130 operates the drip valve v14.
Each step 432b to 44 under the development of (or v15)
Repeat the cyclic calculation process of 0c. Therefore, the drip hot water is sprayed into the drip container 32b (or 32c) for a predetermined supply time '(
0.3 seconds). Therefore, the drip hot water from the rotary nozzle 34b (or 34c) is vigorously sprayed only during each predetermined supply time, and mainly reaches the peripheral portion of the coffee powder in the drip container 32b (or 32C), and each During a predetermined waiting time, it becomes weaker and stops at the center of the coffee powder.

As a result, it is difficult for an expert to fully bring out the taste and aroma of coffee while maintaining a sufficient steaming effect on the coffee by intermittent sprinkling of drip hot water into the drip container 32b (or 32C). The same effect as manually pouring drip hot water spirally from the periphery to the center of coffee grounds can be achieved automatically.

Thereafter, as in the second embodiment, when the determination in step 450 (see FIG. 12) is rYEsJ, the microcomputer 130 executes step 451b (see FIG. 12).
20), the drip valve v14 (or vl5) is opened by the generation of the drip valve opening signal He (or Hd).
After opening, substantially the same arithmetic processing as that in each step 432b to 440c is repeated in each step 451b to 460C until the rYESJ is determined in step 460a, and the same rotary nozzle 34 as described above is The effect can be achieved by intermittent spraying of drip hot water from the tank.

Note that in carrying out the present invention, the present invention is not limited to a coffee dispenser, and may be applied to a dispenser for beverages such as black tea and green tea.

[Brief explanation of the drawing]

FIG. 1 is a diagram corresponding to the claims, FIGS. 2 and 3 are overall configuration diagrams showing a first embodiment of a coffee dispenser to which the present invention is applied, and FIGS. A flowchart showing the operation of the microcomputer in Figure 3;
FIGS. 7 and 8 are flowcharts of main parts showing a partial modification of the first embodiment, and FIGS. 9 and 10 are main parts configurations showing a second embodiment of the coffee dispenser to which the present invention is applied. 10A to 16 are flowcharts of essential parts showing the operation of the microcomputer shown in FIG. 10, and FIGS. 17 to 20 are flowcharts of main parts showing partial modifications of the second embodiment. Computer, He... Heater, vl... Water supply valve, V3
．． V4...Drip hot water storage valve, V5. V6...
: *1 air supply valve, Vll, vl2. vl4.
vl5... drip valve, vl3. vl6...
Air bleed valve.

Claims (3)

[Claims] (1) A boiler means that is supplied with potable water from a water supply source and generates high-pressure steam and potable hot water; a hot water spraying means that is supplied with potable hot water under pressure and sprays hot water in an operating state; In the beverage dripping device, the beverage dripping device is equipped with a drip container that accommodates a beverage raw material and drips the hot water onto the raw material from the hot water sprinkling means into a pouring tank as a beverage, the hot water for drinking is being pumped from the boiler means. a hot water storage tank that stores this potable hot water as drip hot water when
hot water pressure feeding means for allowing pressure feeding of the potable hot water from the boiler means to the hot water storage tank in an operating state; a release means for releasing vapor pressure in the hot water storage tank in an operating state; A high-pressure steam force-feeding means for force-feeding high-pressure steam to the hot water storage tank in an operating state, a first control means for controlling the hot water pressure-feeding means and the opening means to be in an operating state, and termination of the control of the first control means. 2. A beverage dripping device characterized in that a second control means is provided for controlling both the hot water sprinkling means and the high-pressure steam feeding means to be in an operating state. (2) A hot water temperature detecting means for detecting the actual temperature of the drinking hot water, a determining means for determining when the temperature detected by the hot water temperature detecting means reaches a predetermined hot water temperature, and a determining means for determining the actual temperature of the hot water for drinking; 2. The beverage dripping device according to claim 1, wherein in response, said first control means controls said hot water pressure feeding means and said opening means to both be in an activated state. (3) The beverage drip device according to claim 1, wherein the second control means controls the high-pressure steam feeding means to be intermittently activated.