JPS584518A - Coffee brewer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coffee extractor that starts a coffee extraction operation 15 based on a drive command signal.

This type of conventional coffee extractor issues a drive command signal when the memorized time arbitrarily set and stored in the time limit storage unit and the counting time counted by the clock unit, and based on this, the turtle coffee is brewed. This is a configuration that starts the coffee brewing operation, but even if the coffee brewing operation starts, it usually takes about 20 minutes to complete the m tile extraction, and therefore, the user may If you want to get coffee at a certain time, you need to subtract the predetermined time from that time and set and store the time in the time limit storage section.Setting the time in the time limit storage section is troublesome, and calculation errors may occur. This may make it impossible to get coffee at the desired time.

The present invention has been made in view of the above circumstances, and its purpose is to be able to obtain coffee at the time set in the time limit storage section,
To provide a coffee extractor in which time setting in a time limit storage part is easy.

An embodiment of the present invention will be described below with reference to the drawings.

1 is a single type AC power supply of 100 volts and BO~tsu,
Between both terminals is an electric heater 2, which is the load of the hot water supply mechanism. A series circuit consisting of a thermal switch 3 and four normally open contacts of a drive circuit 4 is connected.

In this case, the hot water supply mechanism includes a water storage tank, water is supplied from the water storage tank, and water is applied to the hot water pipe 4Ikll! by the electric heater 2). Let's do it! 4-,
The boiling pressure pipe of the hot water produced by the heater is used to supply the coffee into the coffee extraction case), and by supplying hot water into the case. The extracted coffee liquid is placed in the heating device and stored in the heating device. It is designed to sense and turn on and off.

Now, 5 is a timer), and I will explain this. This #a stirrup 5 is my! It is composed of Stomach Sunbiae I, but #111 is shown in a diagram of Pustomis ivy separated by horizontal sieve for the sake of convenience. Reference numeral 6 indicates an input terminal connected to both terminals of the single-phase AC power supply M1.
Filter the sy# wave, and from the Isy# wave tube branch output terminal to the 11# leap, the evening stomach ivy pulse r@ of the hair level μ of 1 bond
are output sequentially. 1 is clock setting! When the switch is pressed, it turns on when #pressure is operated and turns on the high V level clock WIk electric equipment 8. eaFim? There is a limit setting switch, which is turned on when suppressed and generates a high Vpeμ clock setting signal 8-. When one of the clock setting switch 7 and the time setting switch 8 is pressed and turned on, the other is automatically turned off and turned off. ! 1 and 10 are when the time setting switch is turned on.
& running switch and separate switch), when the fins are pressed, they will turn on only while the pressure is being operated, and each one will be at a high level! The hourly setting signal fB- and the minute setting signal B1 are generated. 11 is the clock department)
This means rlJ, rlJ, rlJ, −・−“
24J.

24 blindly counting tubes from "1" to "24" like "1"
``o'', rlJ, rl for two strokes of Ountara for the second time
J , -・-r59J , "Sexagesimal division element 1s1t that counts from '0' to r59 like QJ"
Second M power! To have 714 tubes, and when it's time? yri1
2, the output beam of the AND circuit 1B is applied to the input terminal 01 through the OR circuit 11j, and the carry pulse Fll from the output terminal Oa of the dividing element 11H is applied through the OR circuit 16. The clock signal 81 indicates the counting contents.
m is output from output terminal O. In this case, the AND(8) reward 15 is supplied with the clock setting signal BT at the first input terminal, the hour setting signal 8- at the second input terminal, and the clock pulse r at the third input terminal.・
The clock setting signal 8v and hour setting signal sI are both given and passed as a clock pulse PstaS cover at 9 o'clock. Further, the division i1 counter 13 has a quaternary input terminal C.
The output pulse of the AND circuit 17 is applied to K via the OR circuit 18, and the digit values μ, XP1 . is given through the OR circuit 18 to perform an addition counting operation, and a minute counting signal indicating the contents of the counting is sent! 811 is output from the output terminal ob, and when the count changes from "59" to "0", one high V bay carry pulse P1st is also output from the output terminal θ. In this case, the AND circuit 17 receives the clock setting signal 8T at the first input terminal, the minute setting signal 81@ at the second input terminal, and the quarter input terminal P at the input terminal @3. @ is given, and the clock setting signal 87 and minute setting signal 8
1 and 2 are given together, so that when the time is right, the black tsuta pulse P- can be used as an output bias. Furthermore, the transfer input terminal 116 outputs a Kurotsuta pulse to the Tarotsuta input terminal CK. , is given, and the addition and counting operation is performed. When the count changes from "59" to "0", one high level signal is output from output terminal 0! digit pulse P1
4 is output. Then, the hour counter/12 clock count signal 81m and the minute counter 13
The zero minute count signal 81s is applied to the input terminals Ia and 1b of the display $lI21 through the transformer 7 agate circuits 19 and 20, respectively, and A clock setting value t 8 y is given to each gate terminal.

As shown in FIG. 2, the display #h21 is constituted by a segment-shaped gujita μ display NL-.

22 is a time-limited memory section, which contains "IJ, r2.
J, r! SJ, -...r24J, i for 24 decimal numbers counting from "1" to "24Jj" like rIJ
I? 25 and rOJ, rIJ, r2J,
・・・-r59", from "0" to "5" like rOJ
It has a sexagesimal division counter 24 that counts up to 9''. Then, the hour counter 23 receives the output pulse of the AND circuit 25 and the carry pulse P14 from the output terminal Oa of the divider input terminal CI.
is applied via the OR circuit 26 to perform an addition and counting operation, and when indicating the counted content, that is, the stored content, the memory signal Bl & output terminal 0 is also output. Further, the division counter 24 performs an addition counting operation when the output pulse of the AND circuit 27 is applied to its data input terminal OK. The minute memory signal 8!4 indicating the count content, that is, the memory value, is output from the output terminal oh, and one high-level carry pulse PR4 is output every time the memory content changes from "59" to "0". It is designed to be output from output terminal O&. In the above case, the AND circuit 25 receives the time setting signal 8 to the input terminal of Igl, and the time setting signal SI to the input terminal of @2.
is applied, and a clock pulse P- is applied to the third input terminal, and when both the time setting signal 8s and the time setting signal 8 are applied, the clock pulse A/x
P @ is passed through as an output pulse. Additionally, the AND circuit 27 is provided with the time setting signal 8- to the wjil input terminal, the minute setting signal 8□・ to the second input terminal, and the Rita tsuta pulse r, to the fifth input terminal. The time limit setting signal 8. When the minute setting signal 81. and the minute setting signal 81. are both applied, the output pulse r. Then, the hour memory signal S 1 from the hour counter 125 and the minute memory signal 4t from the minute counter 24.
8ma is applied to the input terminal chairs a and Ib of the display 121 through the transverse gate circuits 28 and 29, respectively. The time limit setting signal S is applied to each dart terminal.

Furthermore, the clock number signal jlu from the clock 11jl]! The difference meter minute signal 818 is the input terminal of the comparison section nine ratio # circuit io! & and Ib, respectively, and the hour memory signal f8■ and minute memory signal "14" from the hour @ memory section 22 are subtracted by the subtraction circuit 51.
is applied to input terminals I& and Ib, respectively. In this case, a predetermined period of time is e.g. 20 J from the stored time which is the storage content of the subtraction circuit 31, the hour storage signal 828 and the minute storage signal 814, and these hour start signals SH
& and minute start signal 88. b are applied to input terminals Ia and Id of the comparison circuit 30, respectively. Then, when the count contents of the clock signal 811 and the minute count signal all match the hour start signal 8!1 & and the minute start signal 8sxt* memory contents, the comparison circuit 30 outputs a high level drive signal from the output terminal O as a control signal. It is designed to output a command signal of 81 degrees. Further, this drive command signal 8a is connected to the first input terminal of the AND circuit S2, and the second input terminal of the AND circuit 52! The set output terminal Q of the dust effect Tsude V Tsude diagram 55 is the set output signal of the high level μ, which is the spring signal aS
S is given, and the AND circuit 52 selects the driving command lightning t I when the Shushunbi signal SSa is given.
When s is given, a high-level output signal tube is generated and this is applied to the set input terminal 8 of the IL& type 7 ribs 0 tube circuit s4. When this flip-flop P-tub circuit 34 receives a high-level output signal from the AND circuit 32 to the set force terminal 8, it is inverted to the set state and outputs a high-level μ set output signal 9 drive signal 834 from the set output terminal Q. It is supposed to be done. This drive signal 814 is applied to the input terminal of the drive circuit 4, and the drive circuit 4 performs an open operation to turn on the normally open contact 4ml when the drive signal 8 is applied. It has become. By the way, Fritzdef! Tsupu@*54
The stop value tl of ^iVbeμ of the stop switch 3s or b on the input terminal 1 is sent to Hiro sono l-! When sm is given, the stop switch is turned on and the pressure is turned on. aSSSS power output.

Also, the tarokku input terminal of the above-mentioned Trippf Katsude 4-Group 33! Expanded operation switch black 6 high V beμ operation fil No. 8
s@ is now given, and the Amazatsu Tsude bribe Bld operation No. 8 is given, and every 6 it changes to the set state and the g7F state, and the approval judgment is given. No. li■
The output and output stop are executed in line t5Jj. The permission signal aSS of Hinotsu Suga Tsubu @@SS is the above display lll! Close to I21! Arranged point display @sy (
It is now also given to Joy 21I Part II), and that point is indicated -! I7 is equipped so that it lights up when F8SM is turned on.

On the other hand, the vine 8 is a control circuit for an alarm which is connected to the above-mentioned timer device 5), which will be described in detail below.

s9 is an AND circuit), in which the drive signal 8s4 is connected to the control switch 42 &
1') said ? to the second input terminal. Tatsutapa voice!・is given, and the drive signal 8
0 is given and passes Tartuta pulse r @ at 6 o'clock 1
It is now possible to Is the pulse r- from the AND circuit 39 iI? hmm! 40V is applied to the input terminal OI. Power of Jin 9y
140 is for counting from rOJ to r1200J (20 minutes), and its 1g automatic input terminal r1 receives a numerical value signal t 84 t indicating the numerical value "0" from the output terminal of the initial value setting section 41. Each time a numerical signal fLt is given, the first value is added to "@"), and output terminal 0 outputs a count output value tm4・e indicating counting self-harm. input terminal X of the comparison circuit 42
I am preparing to give it to m. Note that the initial value setting unit 41 sets the value *t1 when the stop value +8sm is given to the input terminal.
41 e is output. The comparison circuit 42
is the numerical value r1z from the comparison value setting section 43 to the input terminal Xk.
When the numerical signal 8.1 indicating oOJ is being viewed and the count output value f 8 a. and the WI value signal 8o match the numerical value of suicide (the count of the owner 40 is "1200")
), output terminal O may be high level ~ match signal 8
41 and turns off the control switch 42&. 44 is an AND circuit, and the matching signal 842 is applied to the input terminal of its 1IIi1 via the control switch 468, and #! The above-mentioned Taretsuta pulse is input to the input terminal of No. 2!・ is given, and when the coincidence signal 84 t is given, it is a taretsuta pulse! , can be passed through as an output pulse. 45 is an owner j1%, and the taller pulse P from the AND circuit 44 is applied to the taller input terminal CI thereof, and #!
The above-mentioned stop signal 886 is applied to the clear terminal OL of No. 1, and a count output signal 841 indicating a self-counting alarm for output terminal 0 is applied to the input terminal Ia of the comparator circuit 46. This comparison circuit 46 Hiro, its input terminal Ib &: Numerical value from the output terminal of the comparison value setting section 47.
When the numerical signal 84F indicating ``5'' is given, the count output signal 84B and the numerical signal 84F coincide with each other, and at 9:00 o'clock, a high-level μ alarm stop signal 84 is output from the output terminal 0. At the same time, the control switch 46& is turned off. The alarm stop signal B4 is given to the first input terminal, and the above-mentioned p ivy pulse P is given to the second input terminal. When the alarm stop signal 84 is given, the tarok pulse P is passed as an output pulse. Reference numeral 49 designates a counter p, whose tally input terminal CK is supplied with the tally pulse P- from the AND circuit 48, and its first clear terminal CL is supplied with the stop signal Fi. Output terminal 0 outputs a count output value ``)84*, which indicates the count itself.

50 is a comparator circuit), and its input terminal II is! ! il
A period count output signal 84- is given to the input terminal Ib, and the number 1[r600J(
At 10 minutes, a small value signal 881 indicating the priest's position can be seen), a count output signal 841 and a numerical signal
When the numerical values match, the output terminal 0 also outputs a high level match signal 8s, and the counters 45 and 4!
It is designed to be given to the clear terminal OL of 2 in 4.

52 is an AND circuit, the first input terminal of which is an inverted input terminal is given the stop signal 83B, the input terminal of I12 is given the coincidence signal 84M, and the fifth input terminal is given the above-mentioned stop signal 83B. Alarm stop signal s4 is inverted! The stop signal S
When the match signal 841 is given when neither the signal 1 nor the alarm stop signal 846 is present, a high level output signal is output. Reference numeral 54 denotes an alarm drive circuit, which is configured to energize the alarm buzzer 55 only while the AND circuit 52 receives a high level output signal.

Next, to explain the operation of this embodiment, when power is turned on to the timer 5, various *? Njj12-14.25
, 24, 40, 45, and 49 expansion rOJ, and the initial state is set so that the trip-flop 1 circuits 33 and 34 are in the reset state.

First, change the hour display on the display 21 to the current time (for example, 10 a.m.).
15 minutes).

When the clock setting switch 7 is pressed and turned on to output the clock setting signal S1, this clock setting signal 8T is applied to the gate F terminal of the transfer gate circuit 19 and 20. Transfer gate circuits 19 and 20 are turned on. Thereafter, by pressing the minute setting switch 10 and turning it on, the minute setting signal 8 is output.
1., the setting signal 81. is given to the second input terminal of the AND circuit 17 as 1kjl,
At this time, since the forest clock setting signal 8Y is given to the wgl input terminal of the AND circuit 17, the AND circuit 17 passes the taller pulse P and applies it to the taller input terminal OK of the minute counter 13 via the OR circuit 18. It becomes like this. Therefore, the division counter 13 receives the tallest pulse r.
``1'' each time is given.

r2J, Il'', ++...p, and accordingly, the minute display section of the display 21 also displays ro1J, r02J, [054, ++...-...
Changes are displayed as shown below. Then, the count content of the minute collar 7115 becomes "15" and at 9 o'clock, the pressing operation of the minute setting switch 10 is released (1) Then, the hour setting power switch 9 is suppressed and turned on). At this time, the setting signal 8- is given to the second input terminal of the AND circuit 15, and at this time, the #! of the AND circuit 15 is outputted. Since the clock setting signal 81 is given to the input terminal of 1, the AND circuit 15 outputs the tadatuta pulse P@I
The n overwrite signal is applied to the hour counter 12 input terminal 01 via the OR circuit 16. Therefore, the hour counter 12 is r2 every time the tarotsuta pulse r.
4, rlJ, r4J, ---. The time display section of the display 21 also changes accordingly. indicate. And time 1@own! Time setting switch when the count content of 12 becomes "10"! To release the pressing operation of 0 or more, as shown in Figure 3, the display ##
21 will display the current time as "口1Q:15" (10:15 a.m.). Thereafter, the transfer counter 14 performs a counting operation as the tarok pulses r.
” to rOJ, that is, every minute, carry pulse P1 is generated.
Now output 4! kn, 15 companies, digit input terminal OK, OR circuit 18
It performs a counting operation and outputs a carry bus A/s'1m every hour when the count becomes ``59'' or ``0''. , Time Own!
12 is the carry pulse '11 at the Tarotsuta input terminal CK.
The clock section 11 performs a counting operation, and the display 21 displays the counted time.

Now, in the time limit storage section 22, at an arbitrary time of 8 (for example, 7:03 a.m.),
0 minutes) 0 time setting i! which describes the case of memorizing f-settings! When the p time limit setting signal 8m is output by pressing the switch 8 and turning it on, this time limit setting signal 8m
is applied to the gate terminal of the 211.29 circuit 211.29.
8.29 is in the on state. After that, 1 minute was set up! ) Minute setting signal 8 by pressing switch 10 and turning it on.
1., the setting signal B1. is applied to the second input terminal of the azide circuit 27, and at this time, the first input terminal of the azide circuit 27 has a time limit setting signal yi.
! Value number 8. is given, the AND circuit 27 passes the tada tsuta pulse P- and the branch station KARAN! 24 to the clock input terminal CI. Therefore, the 1-minute counter 24 is connected to the input terminal 01 of the 1-minute counter 24.
Each time r- is given, “IJ , r2j , r3j
, -・-・
Accordingly, the minute display section of display-21 also shows rolJ, ro.
Changes are displayed as 2J, r05J, ---. If the minute setting switch 10 is released from the minute setting switch 10 when the counted content of the minute force run I24 reaches the desired minute value "30", the desired minute 1[r30J]
24&: Will be remembered. After that, by pressing the hour setting switch 9 and turning it on, the p hour setting signal 8 is
When I is output, at this time setting signal B・sha AND circuit 2
At this time, since the time setting signal 8 is applied to the input terminal of the circuit 1 of the azide circuit 25, the azide circuit 25 passes the clock pulse Pφ. 4 and the special power t7 is passed through the OR circuit 26.
125's tarok input terminal ON. Therefore, it's time to own! 23 is a clock pulse to the clock input terminal CI! ``1'' every time - is given.

r2J, r! 5'', . If the pressing operation of the hour setting switch 9 is released when the count content of the hour counter I2S reaches the desired hour value "7", the desired hour value "7" is stored in the hour counter 2s. 0 or more, display-21 shows "Mu M7:30J (7:00 AM)" as shown in 41i.
hours BO minutes) and the desired time are displayed. Then, when the clock WRyl switch 7 is pressed again to output the clock setting signal 81, the hour hand setting **81 is applied to the gate terminal of the clock F circuit 19.20 and the clock setting signal 81 is outputted. ) Since the circuits 19 and 20 are turned on, the display 21 and the clock section 110 display the total time again. And time limit memory section 220 o'clock memory signal +8m
Since the s and minute memory compensation codes 814 are given to the input terminals Ia and Ib of the subtraction (6) circuit 31, the subtraction circuit 31 calculates "20" from the memory time which is the memory end of the hour memory signal SXS and the minute memory signal 80. Minutes are subtracted, and the hour start signal 81- indicates "7" after the subtraction, and the minute start signal 811 indicates "10".
Output b.

Therefore, if you want to perform the coffee extraction operation when the counting time of the clock section 11 coincides with the start time of the subtracting circuit 31, there is an operation that turns on the operation switch '56 by pressing it. Can output and write signal SSS. This operation signal 8s・
is applied to the tartuter input terminal T of the flap hoop tom B3, so that the flap prop enclosure 3
3 is inverted to the CERA) state and outputs a permission signal 80 from the output terminal Q. This permission f81 is the azide circuit 32
is applied to the second input terminal of point indicator 157 at the same time.
It is also given, so it is displayed as a point! ! s7 lights up as shown in Fig. 4, and when the coffee extraction timer t matches,
The comparator circuit 30 outputs the drive command signal S1 and applies it to the first input terminal of the AND circuit 32.9 At this time, the azide circuit! +2 is the spring signal all to the happy 20 input terminal
is given, so that a high-level μ output signal is outputted and applied to the set input terminal B of the set input terminal 34). Pivoting signal 81 from
Based on this output, the drive circuit 4 turns on the normally open contact 4. This), electricity-
12 times the current is turned on, and the hot water is placed in one brewing case, and the coffee liquid is extracted by the W case and placed on the heater. As a result, the coffee extraction site with single-lot operation is the most important issue.

In other words, the counting time of 1 clock 11111 is #pulse log @11122
The coffee brewing operation will start 20 minutes before the scheduled time. On the other hand, the drive atB is also applied to the AND circuit s9 via the control switch 41 &@;
So, I'm going to compile a lie and a bribe! teeth? Stomach ivy μxP・e passage 1 and 4 o glue stomach ivy input terminal C! ), *? What about Nta 40? Buy it, I&/X!・
is given and ink correction is performed from "O" to rl , r2J , rlJ
, --, the total operating cost starts to be determined sequentially, and the operating cost of the comparator circuit 42 is outputted to the input terminal XIh&-. After that, when the water in the water tank of the Ryoyu steel structure is completely consumed, the extraction of coffee will be completed.Therefore, the coffee extraction process 11 will be completed and the heat expansion movement will be completed. By turning on/off switch 5-jX, electric heater 2 is controlled to be switched on and off, so that it heats the photoμ on the heater, thus Ii! in μ). 1. Keep warm with liquid? ? Toki gets M#1. In addition, as mentioned above, coffee extraction? The time required for the T field to end at t varies depending on the amount of hot coffee to be extracted, the outside temperature, etc., but it has been experimentally shown that it is a maximum of 20 minutes. Therefore, under any circumstances, if 20 minutes have passed from the start of the coffee brewing operation, the coffee will finish cooling and the temperature will start to heat up.
That will happen. When the internal count of the owner 40 reaches 1200J, that is, 20
When the minute elapses, the count output signal 84・ and the numerical signal −4s
Compare the numerical values with the comparison path 42 is the match signal 8
4 snow is output and the control switch 42m1 is turned on (1).By turning off the control switch 42&), the drive lI signal "84" is not given to the AND enclosure i9, and the control switch 42m1 is turned off. is held in the state of 12011. Since the coincidence IF f 'l 4 m is given to the unyvm path 44 through the control switch 46, the AND path 44 is not able to exceed the tarotsuta pulse r. so that it is given to the tamed input terminal CK of Okun jf4s.
b. Cuckoo! 45 is evening! Every time Tsutaba~xP@ is given, rIJ, r2J, r! lj,...
・Start counting operation as in -. On the other hand, the coincidence signal 841 from the comparator circuit 42 is applied to the second input terminal of the AND circuit 52, and in the case of a coincidence, the inverting input terminal is the input terminal of the circuit 1 of the AND circuit 52. Since the stop signal 8■ is not given to the comparator circuit 46, the third input terminal receives a signal from the comparator circuit 46. 1 circuit 53's output signal of Hey V Be μ is given, and the AND circuit 52 is at a high level! The output signal tube is outputted from the signal tube and given to the alarm drive circuit 54 by '1 to 9, and the buzzer 55 is energized and sounds by 1 or more), and the counted time of the clock part 11 is stored in the time storage part 22. The buzzer 55 sounds at 9 o'clock when the memorized time is reached, and the coffee liquid is extracted and stored in the upper photoμ. In other words, the time limit storage section 22
If the user simply memorizes the time of the new value, the coffee brewing will be completed at that time (1k), and the user will be able to start brewing the coffee from the desired time of the coffee liquid in the time storage section 22. This does not require any trouble on the screen side, such as setting the time after subtracting the required time. Then power! When the internal count of the counter 45 reaches "5", that is, after 5 seconds have elapsed, the comparator circuit 46 that compares the numerical value of the count output signal 848 and the numerical signal 84γ outputs the notification-stop signal 84 and also outputs the control switch. ? 441), the output signal of the inverter circuit 5s becomes low level due to the output of the alarm stop signal No. 84, and the buzzer 55 stops ringing, and the me switch 46& is turned off.
The coincidence signal 84 is no longer applied to the AND fence 44, and the dice in the count of the owner 45Fi are kept in the state of "S". In addition, alarm stop signal 84, company and national bribe 4
Since it is given to 8, the AND enclosure 4I is passed through the Tatatsuta pulse r tube and the Oken 149 glue ytsu! Input terminal CI
Now, own 149 gives rlJ, rlJ, rlJ, rlJ, rlJ,
Perform a counting operation like "5", ++, etc., and then power! When the count value of 49 reaches r600, that is, 10 minutes have elapsed since the output of the alarm stop signal 114, the comparison circuit 50 that compares the count output signal t84 and the numerical value signal 881 outputs a coincidence signal t8ss.
The counters 45 and 49 are charged to "0" by outputting the signal and applying it to the data terminals OL of the counters 45 and 49. Therefore, the comparison circuits 46 and 49 stop outputting the notification-stop signal 84 and the coincidence signal 811, and the comparison circuit 46 turns on the control switch 46&. As a result, the output of the alarm stop signal 84@ is stopped and p invert! The output signal of the circuit 5B becomes high level μ, the buzzer 55 starts to sound again, and the control switch 46& is turned on, causing a coincidence signal 84! is now given to the AND circuit 44, and the data of T! is passed through the AND circuit 44. Tsutapulse P@ has a counter of 45! It will be applied to the ivy input terminal 0. After that, Rikkun I45
When the counted self-harm reaches "5", the comparator circuit 46 outputs the alarm stop signal 84 again, the buzzer 55 stops sounding, and the counter 49 starts counting. Thereafter, in the same manner, the buzzer 55 will sound for a fixed period of time 5e every time the set time of 10 minutes has elapsed. In this way, the predetermined time period of 20 minutes starts from the start of the coffee extraction operation.
When the minute elapses, the buzzer 55 first sounds for 5 seconds, and then every 10 minutes, the buzzer 55 sounds for 5 seconds. #You can know that the extraction has been completed and is in the warming process, and you can also know that the buzzer 55 sounds regularly for a short period of 5 seconds every 10 minutes as described above, so The buzzer 55 does not ring for an unnecessarily long time, thereby preventing the user from feeling uncomfortable.

If you wish to stop the buzzer 55 from ringing, press the stop switch 35 to turn it on) to output the stop signal SSS. Since the signal is applied to the input terminal of signal 1 of signal 12, the output signal of signal 52 is changed to 1k), and the buzzer 55 stops ringing.

Also, the stop signal 8 is input terminal 1. Initial value setting! Since the input terminal of the unit 41 is applied to the input terminal of the drive signal 145 and the terminal layer OL of '49, the 7ψ output S4 changes to the ν Sera) state and the output of the drive signal -1 stops. As you do, get off 4ml of driving garden road 4all points, then coffee extraction line I
Stop the boat departure from the warming process. l
! Then, the initial value output 41 outputs the numerical value t841 (1) by turning on the stop signal 81&, and rOJ is set in the counter 40, thereby causing the comparator circuit 42 to output a signal t841. II 4 g's output is stopped and the control switch 42a is turned on.
When the stop signal III is applied to the terminal OL of the terminal 5, p is set to "0", which causes the comparator circuit 44
stops the output of the alarm stop value f84@ and turns on the control switch 44m, and the stop signal 8■ is given to the terminal CL of the counter 49. 1 or higher), the user uses the buzzer 5
By pressing the stop switch 6S to stop the buzzer 5, the coffee extraction operation is also stopped simultaneously. However, problems such as operating the buzzer stop switch, forgetting the operation stop switch operation tube, and then continuing the coffee extraction operation even though there is no 1III# liquid in μ will not occur. be.

In the above-mentioned embodiment, the timer 5 is provided with an alarm control path 38, but it is possible to provide the alarm control path 38 as necessary.

In addition, Zero MI @ is IJI shown in the five drawings above! Kuma yl only for vagina! It goes without saying that the invention may be modified and implemented as appropriate without departing from the scope of the invention.

As explained above, the present invention is provided with a clock unit that counts the time, a time limit memory unit that stores an arbitrarily selected time, and a predetermined time required to complete coffee extraction from the time stored in the time limit memory unit. A subtraction circuit is provided to set the start time by calculating the start time of the subtraction circuit, and the start time of the subtraction circuit is compared with the count time of the clock section, and when they match, a round drive command signal is provided to start the coffee extraction operation. Since the configuration is equipped with a comparison section that outputs coffee, the user does not have to perform calculations such as subtracting the travel time from the desired time of coffee, and can set it in the time storage section and automatically start coffee at 9 o'clock. As a result, it is possible to provide a coffee extractor which is extremely convenient for use in Harushima, where the time can be set in the time limit storage section.

[Brief explanation of drawings]

The drawings are of the present invention! l! 1 is an electrical configuration diagram, FIG. 2 is a front view of a magnifying display, and FIG. 5 and FIG. 4 are diagrams of monks in different display configurations. In the drawing, 2 is 1 for electricity! , 3 is a thermal switch, 4 is a drive circuit, 4a is a normally open contact, 5 is a timer, 6 is a frequency dividing circuit,
7 is a clock setting switch, 8 is a time limit setting switch, 9 is an hour setting switch, 10 is a minute setting switch, 11 is a clock section,
12 is time P@own! , 13 is a minute counter, 14 is a seconds counter, 21 is a display, 22 is a time limit storage section, 25 is an hour *fynter, 24 is a minutes counter 1130 is a comparison circuit, 51 is a subtraction circuit, and 34 is a flip-flop. circuit, 35
is the stop switch, 38 is the alarm control circuit, and 40 is the power! hmm! , 42 is a comparison circuit, 45 is a force, 46 is a comparison circuit, 49 is a callan! , 5o is a comparison circuit, 55 is a buzzer (
alarm). Applicant Tokyo Shibaura Electric Co., Ltd. Agent Patent attorney Moe Sahara” “-s-mo-ji;

Claims (1)

[Claims] 1. In a device that starts coffee extraction operation based on a drive command signal, there is a clock unit that counts the time, a time limit memory unit that stores a set arbitrary time, and a device that starts coffee extraction operation based on the time stored in the time limit memory unit. A subtraction circuit that sets a start time by subtracting a predetermined time required for extraction operation, and a comparison that compares the start time of this subtraction circuit with the counting time of the clock section and outputs a drive command signal at 9:00 when they match. A coffee extractor comprising: