JPS6036771B2 - Cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooking appliance such as a food processor.

Conventionally, in this type of cooking appliance, there are various types of control circuits for controlling the operating time and operating speed, and most of them include a memory circuit.

In order to ensure safety, some devices are equipped with a safety switch that detects whether the lid is attached to the container in the normal lock position, and enables or disables energization of the motor. However, this safety switch has the same function as a power outlet, and if the safety switch is turned off while driving.
Then, along with the power supply to the motor being stopped, all the contents written in the memory circuit are also cleared. Therefore, when resetting the lid and restarting, the settings must be made again, and the operating time, etc. cannot be set when the lid is removed. The present invention has been developed in view of these points, and allows the OFF of the safety switch to act only on stopping the motor, so that the setting group can be set regardless of the set of the lid.
The object of the present invention is to obtain an easy-to-use cooking device that can display information. The present invention ensures safety by temporarily cutting off power to the motor when the safety switch is in the OFF state, and at the same time, temporarily cutting off the triac to prevent clearing of the memory circuit by turning off the safety switch to maintain the memory contents. The system is configured so that the user-friendliness is not unnecessarily restricted by the safety switch.

An embodiment of the present invention will be described based on the drawings.

This example shows an example of application to a food processor.
First, a container 3 with an upward opening is attached to a mounting portion 2 formed on a main body case 1 . A lid 4 that closes this container 3 is detachably attached. Further, a motor chamber 6 in which a commutator motor 5 is housed is vertically formed next to the mounting portion 2 . A cutout 7 is formed in the upper side of the motor chamber 6 facing the container 3, and a safety switch 8 is provided inside the cutout 7. A switch piece 9 for opening and closing the safety switch 8 is formed on a part of the circumferential side of the lid 4. Here, when the container 3 and the lid 4 are in a normal lock set state, the switch piece 9 is located at the position shown by the solid line in FIG. The safety switch 8 is positioned by a mechanism, and if it deviates from the normal locking position, the safety switch 8 is opened as shown by the dashed line in FIG. Further, a gear 11 is fixed to the motor shaft 1 of the motor 5, and an intermediate gear 12 is fixed to this gear 11.
A drive shaft 14 having a gear 13 that meshes with the drive shaft 14 is provided to protrude from the mounting portion 2 .

A cutting blade 15 for cutting the food to be cooked is provided inside the container 3 and is detachably attached to the drive shaft 14. Various types of cutting blades 15 are selected and used depending on the type of cooking. A display section 16 and an operation section 17 are provided on the bottom front surface of the main body case 1.

First, the display unit 16 is composed of a 4-digit, 7-segment LED 18, the first and second digits from the left display the time in seconds, and the third digit displays the lid by turning on and off the safety switch 8. The fourth digit is displayed in stages of operating speed. Further, as shown in FIG. 5, the structure includes a decorative plate 1 provided to fit the front opening of the main body case
A PC board 20 having the LED 1 8 is fixed to the LED 1 8 , and a transparent display plate 2 1 is fixed to a decorative plate 19 in front of the LED 1 8 so that the lighting state of the LED 18 can be seen through the display section 16 . It's like that. On the other hand, the operation unit 17 has a plurality of keys, from the left, a key 22 for setting the operating time in units of 1 sand ("x10"), and a key 23 for setting the operating time in units of 1 second ("x1"). , a plurality of predetermined operating speeds (in this example, stop "0"
and a key 24 for setting (steps "1" to "6"), an auto pulse key 25 for performing intermittent operation every 2 seconds,
It consists of a clear key 26 and a start/stop key 27 which also serves as a start/stop function. Looking at its specific structure, for example, the start/stop key 27, as shown in FIG. , 30 with an insulating spacer 31 interposed therebetween for maintaining the distance between the conductive parts. The same applies to other keys 22 and the like. And said plaque 1
A flexible cover 32 such as a Bo IJ Estel sheet is provided on the entire front surface of the cover 9 . This cover 32
The parts other than the display part 16 are attached with adhesive,
On its surface are a display section 16 and an operation section 1 as shown in FIG.
Required printing corresponding to 7 has been applied. By providing such a cover 312, it is possible to completely prevent water from entering the precise key group of this type of cooker that uses water, and electrically connect the outside and the inside. It is completely insulated and can prevent short circuit accidents. Next, the control circuit for the motor 5 will be explained with reference to FIG.

First, the motor 5 is connected to a commercial AC power source 33 together with the safety switch 8, bimetal switch 34, and triac 35. In addition, these safety switches 8
, motor 5, bimetal switch 34, triax 3
A diode 36, resistors 37 and 38, and a diode 39 are connected in parallel to the transistor 5. A smoothing capacitor 40 is connected in parallel to the Zener diode 39, and a smoothing capacitor 41 is also connected in parallel to the Zener diode 39 and the resistor 38. Power supply voltage V for the microcomputer CPU42, which serves as a memory circuit. . is made. Here, the motor 5 is provided with a brake coil 43, and this brake coil 4
3 is connected to the OFF terminal A of the safety switch 8, and the other end is connected to an intermediate point between the armature 44 and the field coil 45.

The end of this field coil 45 is connected to the triac 35 via another field coil 46. Further, the remaining brushes of the armature 44 are connected to the common terminal C of the safety switch 8. An ON terminal B of the safety switch 8 is connected to an AC power source 33. On the other hand, a resistor 47 and diodes 48 and 49 are connected to the common terminal C of the safety switch 8, and the power supply frequency signal V
s,.

has been taken out. This power supply frequency signal Vslc is passed through a diode 50 to the ACPU of the 4-bit chip.
42 is input to the terminal. That is, from the voltage waveform of the AC power supply 33 shown in FIG. 8a, a negative side power supply voltage is extracted from the voltage waveform of the AC power supply 33 as shown in FIG. The positive side power supply voltage is taken out and both are combined to produce a power supply frequency signal Vs, as shown in d of the figure. This is the result. Then, the voltage drop of the diode 48 on the positive side of the diode voltage Vss is canceled and inputted to the & terminal of the CPU 42 to adjust it so as not to exceed the power supply voltage of the CPU 42. Also, French CPU4
2, first, a built-in oscillator is caused to oscillate by a capacitor 51 between the Vss terminal and the OSC2 terminal and a semi-fixed resistor 52 between the OSC terminal and the VoD terminal, and a clock signal is given to the French CPU 42.

The INIT terminal is used to clear the ACPU 42 at H level with respect to the power supply voltage Voo, and to execute a program at L level. Therefore, when the power is turned on,
While holding the level, the program counter is preset and the output is set to L level, and the INIT terminal Vss
An electrolytic capacitor 53 is connected between the terminals. This electrolytic capacitor 53 provides a power supply voltage Vo. This prevents unexpected programs from running during startup. The collector of a PNP type transistor 54 is connected to the negative side of the electrolytic capacitor 53, its emitter is connected to the Vss terminal, and the collector of a PNP type transistor 55 is connected to its base. The collector of this transistor 5 is connected to the VoD terminal via a resistor 56, and the base side has the voltage (V) between the resistors 37 and 38.
Resistors 57 and 58 are connected to divide the voltage ('-Vss). Then, as an input relation of the ACPU 42, K
Signals from keys 22, 23, and 24 are input to the , terminals, and signals from the key 25, clear key 26, and start key are input to the K2 terminal.
A signal from the stop key 27 is inputted, and a signal from the changeover switch 59 for 50th day 2 and 60th day 2 is also inputted to the K4 terminal. This cut-off switch 59 is 50Hz
When this is closed and voltage Vss is input, 50H
It executes a program for Z. Also, ACP
As for the output relationship of U42, the signals from the 0o to 06 terminals are connected to the transistors 60, 61, 62, 63, 64, 65, 6.
It is added to the emitter side of 6. As a result, the transistors 60 to 66 are driven to appropriately flow current to the seven segments of the LED 18, and the transistors 67, 68, 69, 7 are driven by the output from the Ro to R3 terminals of the French CPU 42.
By drawing each digit of current through 0 one after another, LE
This is to light up D18 for each digit. The signal at the Ro terminal is also applied to the keys 22 and 25, and similarly to the R. The terminal signal is given to the key 23 and the start/stop key 27, and the R2 terminal signal is given to the key 24 and the clear key 26, respectively. Furthermore, the R5 terminal generates an output for the piezoelectric buzzer 71, and when a key is pressed or the timer ends, this piezoelectric buzzer 71 is output via a transistor 72.
1 for a short period of time. The signal from the R7 terminal is input as a gate signal to the gate of the triac 35 via the transistor 73. In this circuit, a transformer is not used to generate the power supply voltage Voo, and the voltage is stepped down by resistors 37 and 38, so that the circuit can be made smaller.

In this case, by dividing the resistors 37 and 38 into two and connecting the capacitors 40 and 41, the power supply voltage Vo
The ripple can be reduced more than when the capacitor 40 is inserted only in this. Since the voltage at the voltage dividing point of resistors 37 and 38 (Voo'-Vss) is used as a signal for the discharge circuit formed by transistors 54 and 55, etc., it is possible to perform a reliable and quick reset when the power is turned off, allowing for instantaneous resetting. Even if the power is turned on, malfunction of the ACPU 42 can be reliably prevented. As a result, even in the event of an instantaneous grounding accident such as during a power outage, the motor 5, which had been rotating at a low speed, will not suddenly rotate at a high speed. That is, according to this power supply circuit, the voltage Voo' is normally maintained at a more negative voltage than the power supply voltage Voo with respect to the voltage Vss, and the resistors 57 and 58 make the divided voltage slightly lower than the base-emitter saturation voltage of the transistor 55. By setting a low voltage to
3 is electrically disconnected from this transistor 54, but the AC power source 33
Since the voltage of oo' starts to decrease first, the base voltage of the transistor 55 approaches the voltage Vss, the transistor 55 turns FF, the transistor 54 turns N, and the electric charge of the electrolytic capacitor 53 is instantly discharged. , French CP
The INIT terminal of U42 is pulled up to voltage Vss to perform a clearing operation. Therefore, the power turns on instantly.
・If the ACPU 42 is repeatedly turned off, for example, if the cooking is finished and the power outlet is unplugged, and then the cooking is resumed immediately, the ACPU 42 will be cleared in an instant, so the French CPU 42 will not malfunction. The program will be executed without any problem. Regarding the safety switch 8, if the lid 4 is locked in the normal position, the motor 5 can be energized, and even if the lid 4 is energized, if the lid 4 is removed or moved from the normal position, the safety switch 8 is turned off. When switched to the terminal A side, the brake coil 43 and armature 44 are connected in series without intervening field coils 45 and 46, forming a closed circuit, a kind of short-circuited generator, and the cutting blade is activated under a large braking force. Immediately stop the rotation of 15.

Also, from a circuit perspective, the safety switch 8 is connected to the French CPU 4.
When the safety switch 8 is turned FF, the power to the motor 5 is cut off, the gate signal to the gate of the try hook 35 is stopped, and the French CPU 42
The timer time and driving speed stored at that point remain as they are. In other words, even if the safety switch 8 is in the OFF state with the lid 4 removed, the cooking time and speed can be set, and the operation procedure is not limited and is easy to use. If the cooker is in the middle of cooking, even if you remove the lid 4 and add more food to the cooker, all you have to do is lock the lid 4 again and press the start/stop key 27.
It is possible to restart cooking with the previous setting information, the total time of the cooker can be known without calculating, and cooking can be done using data without relying on intuition. The result is always the best cooked food. Furthermore, the ON/OFF signal of the safety switch 8 is taken out from the common terminal C on the energized side of the motor 5, and a power supply frequency signal Vs, which is used as a timer. Since this is also used as the ON/OFF signal for the safety switch 8, the power supply frequency signals Vs and G, which are susceptible to adverse effects such as surge noise and high frequency noise based on the AC power supply 33, are turned off when the safety switch 8 is turned OFF. This eliminates malfunctions, prevents the cook from being injured, and prevents the cutting blade 15 from rotating against the cook's will and damaging the food, making it safe. Next, the program of this embodiment will be explained according to the flowcharts of FIGS. 9 to 11.

First, when you turn on the power plug, the RA in the French CPU42
M is automatically cleared. The time setting is set to "C" which means continuous operation, and the operating speed is set to "0" among the speeds of "IJ" to "6" and "0" which means no operation. Next, the K terminal input is 50H
Check whether it is Z or 60HZ, and if it is set to 5 dishes Z,
Set up the 50HZ flag. In this way, the initialization operation is performed. Subsequently, it is determined whether the lid 4 is locked, that is, whether the safety switch 8 is in the ○N position, and if the safety switch 8 is in the ○N position, the process moves to the 48hs counter.

And the count content of these 4 shoes S power unta is 45ms
If it is not 4 shoes or more, the power supply frequency signal Vs to the & terminal is determined. is the power supply voltage Vo
It is determined whether the signal o is at H level or L level.
Here, whether it is H level or L level, the H level
It is determined whether the level and L level are the first ones.
That is, the zero crossing of the power supply waveform is detected as switching from H level to L level and from L level to H level for the K8 terminal. In this case, if the state with no level change continues, the first determination result as to whether it is H level or L level is NO, and the count up by the 45hs counter continues beyond the 50Hz half cycle 1st hs and the 60Hz half cycle 83hs. , the start flag is cleared when the time is 45hS or more, and the no-lid line is displayed while the time and speed are memorized. On the other hand, there was a level change, the first H level,
When the determination as to whether it is at L level becomes YES, after clearing the 48hs counter, it is determined whether the start flag is 1 or not, and if the start flag is not set, the program moves to the display program for LED18. That is, a dynamic display operation is performed in which the output is output from the ○o to 06 terminals and the output is output from the Ro to R3 terminals depending on the digit. In this case, the input signal to the K terminal or the K2 terminal corresponding to the output of the Ro to R2 terminals in this dynamic display operation is stored in the RAM, and if there is a signal, the process moves to the key processing routine in Fig. 10 described later. . In addition to this dynamic display operation, the display section using the LED 18 performs a lighting operation for four digits within a half cycle of the AC power supply 33 by carrying up the lighting digit and performing a routine for determining whether four digits are completed. by the way,
When the safety switch 8 is OFF, it enters the 9.2hs counter and displays 4 digits within 9.2hs, which is the intermediate value between 50Hz half cycle 1 hs and 60Hz half cycle 8.3hs. When the 4-digit display has finished, the input prohibition counter counts as the routine continues, and if the interval between key inputs is 0.1 seconds or more, a flag is set to remove the input prohibition, and the input prohibition counter is set. If the piezoelectric buzzer 71 that sounds in response to the input is not ringing, it will pass through as is, but if it is in the middle of ringing, the ringing of the piezoelectric buzzer 71 will be cleared in one shoe s. Next, it is determined whether the start flag is 1, and if it is not standing, it is determined whether it is the end buzzer. If the end buzzer is not sounding, it is determined whether the initial safety switch 8 is ON. Return to the determination. These routines form a constant processing routine loop. Next, the key processing routine will be explained with reference to FIG. In the above-mentioned constant processing routine, after storing the input signal to the K terminal or the K2 terminal corresponding to the output from the Ro to R2 terminals during dynamic display operation, if there is a signal, the process moves to this key processing routine. First, when the lid 4 is locked, the power frequency signals Vs and G, which are always input to the K8 terminal, are omitted, the lid flag is set to 1, and then the process returns to carrying up the lit digit.
When there is an input to the K terminal or the K2 terminal, the key interval is 0.1 to determine whether the input prohibition counter is released.
It is determined whether the input is greater than or equal to s, and if the input is prohibited, the input prohibition counter is cleared. On the other hand, if the input prohibition counter has been cleared, it is determined whether the number of key press operations is 3 hs or more. This determination, along with the function of the input prohibition counter, is effective in preventing key input chattering, uncertain key input, or noise entering the AC power supply 33. If there is, a signal is output from the R5 terminal and the transistor 72
The drive causes the piezoelectric buzzer 71 to sound. Next, K2
It is determined whether the input is to the terminal or the input to the K terminal. Here, if the input is to the K2 terminal, it is determined whether it is the key 25 for auto pulse. In the case of this key 25, after the pulse signal is stored in the RAM, the process returns to the carry-up of the lit digit in the regular processing routine. Also, key 2
If the signal is not from 5, press the start/stop key 27.
If it is the start/stop key 27, it is further determined whether it is a start signal or a stop signal. If it is for a stop, clear the start flag, memorize the time, speed, auto pulse signal, etc. as they are, and return to carrying the lit digit. If the signal is for a start, the start flag is set to 1 after confirming that continuous operation "C" or the timer is set. In addition, to determine whether it is for start or stop, use the start/stop key 2.
This is done by distributing 7 signals alternately. Furthermore, if it is not the start/stop key 27,
It is determined whether it is the clear key 26, and if it is the clear key 26, the program is returned to the start, the RAM is cleared, and the continuous operation is set to "C" and the speed is set to "0". On the other hand, if there is an input to the K terminal, "xio" for time setting.
If it is the key 22, the first digit on the display section 16 is highlighted.

In other words, if the second digit is x, the key 22
Depending on the operation, the characters will become "Melon", "Lx", "Koichi", etc., "Same", and after "Scale" there will be only "C" which is a continuous operation display, and the second digit) will be stored in RAM. Then, when the next key 22 is input, this second digit is called back and becomes "melon". Furthermore, if the key 23 is "x1" for time setting, the second digit (x1" digit) on the display section 16 is pressed in sequence. Further, if the key 24 is for speed setting, the speed is set by operating the key 24 in the order of "0", "1" to "6", "0", and so on. In this case, the firing angle constant corresponding to the set speed step is stored in the RAM. In this way, a loop of key handling routines is formed. Further, the ignition processing routine will be explained with reference to FIG. 9 together with the timer processing routine shown in FIG. 11.

First, when the start flag is set, a determination is made as to whether pulse setting is being performed or not based on the determination of the start flag in the regular processing routine. Then, if the pulse setting is not set, it is determined whether the speed is "r6", and if the speed is "6", it is 0.
．． Give a trigger pulse of 36hS to the triac 35,
The timer processing routine shown in FIG. 11 is called. This timer processing routine uses the commercial power supply frequency of 50Hz or 60Hz, and if it is 50Hz, 50 pulses are counted and 1 second is counted, and if it is 60Hz, 6 boxes of pulses are counted and 1 second is used. shall be. First, the levels of the power supply frequency signals Vs and G are selected, and timer processing is not performed at L level, but timer processing is performed only at H level. In the case of H level, it is determined whether the 50HZ flag is set, and if it is set, it is 50HZ and 50HZ is set.
It goes into the counter, and if it is not standing, it means 60 days 2, so it goes into the 60 counter and is counted. When this count increases, it is counted by a 4-second repeat counter used for auto pulse or end buzzer. The process up to this point is carried out in the same way even if "continuous operation" is set to "C", but if the timer is set, it is determined whether the end buzzer is being sounded. If the end buzzer is on, return to the original routine; otherwise, change the time by 1 from the current time.
Subtract seconds. After the subtraction, it is determined whether the set time has elapsed and the number has reached 0. If there is still time left, return to the original routine, and if the time is 0, set the end buzzer, clear the start flag, and return to the original routine.
If the speed is set to something other than "6", the set speed is changed to "1" or "5" after determining whether the start flag is up and determining whether the speed is "6" or pulse setting.
The corresponding point fox angle is called from RAM. Here, in the case of 5-dish Z or 60HZ, the firing angle will be different even if the firing time is the same from the point of zero cross, so it is determined whether the 50HZ flag is set and one consumption is determined according to 50 days 2 and 60 days 2, respectively. Count with a 50Hz firing angular force counter selected to obtain electric power, and a 2-point firing angular force counter for 60 days.
A firing angle pulse having a set speed is applied to the gate of the triax 35. Then, the timer is called and the process moves to the timer processing routine. Here, if the timer has ended and the end buzzer is sounding, it is determined whether the end buzzer is sounding, it is further determined whether the end buzzer is within 2 seconds, and the timer processing routine is started. Examine the contents of the 4-second repeat counter. If it is 2 seconds or more, the end buzzer is stopped and the process returns to the initial determination of whether the safety switch 8 is ON in the regular processing routine.

If it is within 2 seconds, the process moves to a timer processing routine to advance the 4-second repetition counter.

In the case of pulse setting, the display on the display unit 16 will be "x, x, 1, P", but the operation will be repeated at speed "6" with two shifts and a two second pause.

Therefore, if the pulse setting is set, it is determined whether the pulse counter, that is, the 4-second repetition counter, indicates the operating time or the rest time. If it is a running time, an ignition pulse is given as in the case of speed "6", and if it is a rest time, a timer processing routine is called to advance the timer.
Cooking according to the settings is performed by these constant processing routine, key processing routine, ignition processing routine, and timer processing routine.

Next, specific operations and their displays will be explained. First, when the power plug is turned on as a preparation step, the display is automatically cleared and continuous operation "C" and speed "0" are displayed on the display section 16 as shown in FIG. 12a. At this stage, the lid display may be turned on or off depending on whether the safety switch 8 is turned on or off. Next, keys 22 and 23
Set the time by operating . This setting range is 00~
9 mirror sand, and if it is not operated, it will be continuous operation "C".
For example, if you want to set 3 aids after displaying "00" seconds, press the "x10" key 22 three times and the "x1" key 23 nine times, and the display will appear as shown in Figure 12b. It will be displayed. If it is desired to change the time set in this way, it can be done by continuing to operate the keys 22 and 23 or by clearing the time using the clear key 26 and resetting it. Then, the speed is set by operating the key 24. In other words, "0" to "6" depending on the number of times you press it.
Speed setting is performed in stages. For example, 5 times key 2
When 4 is pressed, a speed of "5" is displayed on the setting display as shown in FIG. 12c. This speed change is also performed in the same way as the time change. After setting the time and speed as described above, operation begins by operating the start/stop key 27.

In this case, it is checked whether the third digit grid display on the display section 16 is lit. That is, if the lid 4 is locked in the normal position, the safety switch 8 is turned on and the display section 16 displays the lid as shown in FIG. 12d. On the other hand, if the lid 4 is removed or not in the normal lock position, the lid display will not be performed and the start/stop key 2 will not be displayed.
7 does not work. Since the lid display is performed in this way, and the time and speed are also displayed on the same display section 16, for example, if the power outlet is disconnected, the entire display section 16 will be dimmed and no display will be made. On the other hand, if the lid 8 is removed, only the lid display will be dimmed and no display will be displayed, allowing the two to be distinguished even if they do not operate in the same way. After all, it is possible to know all the settings and the status of the cooker just by looking at the display contents of the display section 16, and the cooker procedure can be improved and the cooking time can be shortened. After confirming the lid display in this manner, when the start/stop key 27 is pressed, the motor 5 is started and cooking begins. At this time, the time displayed on the display unit 16 is displayed by subtracting one second at a time as time passes. and,
When the remaining time reaches 00 seconds, the piezoelectric buzzer 71 stops sounding. By the way, when such a time is set or when continuous operation is set to "C", and if you want to stop the motor 5 during operation, just press the start/stop key 27 again. This operation causes the start/stop key 27 to function as a stop key, causing the start/stop key 27 to function as a stop button.
stops, and the remaining time (or "C") and speed at that point are fixedly displayed on the display section 16. Then, if you want to resume operation, press the start/stop key 27.
Just press once. After all, even if the continuous operation is set to "C" or the time is set, if you want to stop the operation depending on the cooking status etc. during operation, operate the start/stop key 27 that started the operation. You can stop the cooking process without any confusion, and you can get food in the optimal cooking state. Further, if intermittent operation is desired, pulse setting may be performed using the key 25 instead of setting the speed using the key 24.

That is, when the key 25 is pressed, the display section 16 displays "P" instead of the speed, as shown in FIG. 12e. At this time, even if the time is continuous operation "C",
The time setting may be from "00" to "99" (this time is the total time of operation and rest). Therefore, when the start/stop key 27 is pressed, intermittent operation is performed, but the speed is in 6J stages, and the operation repeats 2 seconds of operation and 2 seconds of rest. - By repeating starting and stopping by operating the stop key 27, intermittent operation can be performed even at speeds other than speed "6". In this respect as well, the specifications can be expanded by providing a start/stop key 27 that also serves as a start/stop function. Furthermore, motor 5
If you want to run only the timer regardless of the
As shown in FIG. 2F, while setting the required time (for example, 6 seconds), set the speed to "0" and press the start/stop key 27.

As a result, as time elapses, the display section subtracts one second at a time, and when it reaches zero, the piezoelectric buzzer 71 sounds to notify that the time is up. Such a function can be used as a reference for preparation time. As described above, the present invention connects a safety switch in series with a triac to the outside of the motor, and when this safety switch is turned off, the power to the motor is briefly cut off, and if the triac is turned off, the safety switch is turned off.
Since the clearing operation of the memory circuit by the switch is prohibited, while maintaining the safety function of the safety switch,
You can display current information continuously and perform setting operations regardless of whether the lid is set, so there are no restrictions on cooking procedures.
It is easy to use.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a vertical sectional view, FIG. 3 is a plan view of the safety switch, FIG. 4 is a front view of the decorative plate, and FIG. 5 is a vertical cross-sectional view of the display section, FIG. 6 is a vertical side view of the operating section, FIG. 7 is a circuit diagram, FIGS. 8 a to d are voltage waveform diagrams, FIGS. 9 to 11 are flow charts, and FIG. 12a to 12f are front views showing display examples. 3.... ...Container, 4...Lid, 5...Motor, 8...
...Safety switch, 15... Cutting blade, '6...
... Display section, 35 ... Triac, 42
...French CPU (memory circuit). Nasal voice /' Figure J room Z Figure 0 Figure J plan U Figure 5 Hayabusa angle 6 Figure bundle / is Figure J plan Wa figure body note 8 Figure Hayate note //'/ figure member bow ? Figure J Lotus River

Claims (1)

[Claims] 1. A container that has a built-in cutting blade for cutting the food to be cooked and is closed with a removable lid, a motor that rotates the cutting blade, and a memory that stores set times, set speeds, etc. to control the operation of this motor. A control circuit including a circuit, and a display section that displays the set time, set speed, etc. stored in this memory circuit are provided, and a safety switch that is closed when the lid is placed in the lock position is connected in series with the motor together with a try-out switch. , and when the safety switch is turned off, electricity is cut off to the motor and a gate trigger of the triax is cut off, thereby prohibiting clearing of the memory circuit.