JPH02241409A - automatic rice cooker - Google Patents

Abstract

PURPOSE:To prevent rice and water from being left in the mixed state for a long time by providing a control circuit for calculating operation starting time from rice boiling ending time and putting rice and water in a pot when it reaches this starting time. CONSTITUTION:A control circuit part 11 is formed of a control circuit 12 for controlling each part for automatic rice boiling, an operation part 13 for setting rice boiling quantity, degree of water and boiling ending time, and a display part 16 for indicating the boiling ending time. In rice boiling by timer, favorite rice boiling quantity, degree of water and boiling ending time are set through each key of the operation part 13, and a start switch (e) is pushed on, whereby the rice boiling quantity and degree of water set are stored in a memory circuit 14, the necessary quantities of rice and water are determined, the time required for the whole process is calculated, and the rice boiler waits and stands until it becomes the operation starting time obtained by subtracting the required time from the boiling ending time. And, when it reaches the operation starting time, the set quantity of rice is taken out from a rice chest part 3, washed in a rice washing part 5, and placed in a pot 1, and also a water quantity according to the set degree of water is sent into the pot 1 from a water feed part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic rice cooker used in general households.

2. Description of the Related Art The structure of a conventional automatic rice cooker will be explained with reference to FIG. In the figure, 6o is a pot in which water and rice are placed, and this pot 6o is heated by heating means 61. The control circuit section 62 is composed of a control circuit 63 that controls the heating means 61, a memory circuit 54 that stores control sequences, etc., a display section that displays the current time, etc., and an operation section 66 that sets the rice cooking start time and rice cooking end time. was. When the rice cooking end time is set using the operation section 66, the control circuit 63 stores the time in the storage circuit 54 and displays the time on the display section 56. When a predetermined amount of water and rice are placed in the pot 5o and the start is started, the control circuit 63 operates the heating means 51 at a predetermined time earlier than the preset time, and records the temperature data necessary for rice cooking. The therminutor 67 obtains this, controls the heating means 61 according to the rice cooking sequence in the memory circuit 64, and finishes cooking the rice.

Problems to be Solved by the Invention However, in conventional automatic rice cookers, water and rice are left in the pot 5o until it is time to start cooking. I made sure not to leave it unattended for more than an hour.

For this reason, even if the user wanted to eat rice after 13 hours or more, he or she could not eat freshly cooked rice and had no choice but to eat rice that had been kept warm.

The present invention solves a complicated problem and aims to make it possible to start cooking rice after 13 hours or more.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a rice cooking section comprising a pot for cooking rice and a heating means, a rice bin part capable of storing rice and discharging rice in predetermined amounts, and a rice bin part from the rice bin part. A rice washing section that washes discharged rice, a water supply section that supplies water necessary for rice cooking, a control circuit section that controls each of these sections, and an operation section that sets a rice cooking end time, the control circuit comprising: The operation start time is calculated from the rice cooking end time, and when this start time is reached, rice and water are put into the pot.

According to the above-described structure, the present invention sets the operation start time from the rice cooking end time 2, and mixes water and rice for the first time at the starting time, so it takes a long time (13 hours) from the set time to the rice cooking end time. (above), it is possible to set the end time of rice cooking after a long time without leaving the rice and water in a mixed state.

EXAMPLE A practical example of the present invention will be explained with reference to FIGS. 1 to 4.

FIG. 2 explains the structure of the tree example with reference to FIGS. 1 and 2. In the figure, 1 is a pot for cooking rice, 2 is a heating means for heating the pot, 3 is a rice bin for storing rice, 4 is a rice outlet for discharging a predetermined amount of rice, and 5 is a rice discharging port. 6 is a rice washing section that washes rice; 6 is a transfer section that transfers the washed rice to pot 1; 7 is a water tank that stores water necessary for cooking rice;
8 is a water supply pump that supplies water to pot 1, 9 is a water supply pipe that sends water to pot 1, 1o is a water supply nozzle that discharges water to pot 1, and 11 is a rice cooker that controls each of the above parts to automatically cook rice. This control circuit section includes a control circuit 12 for setting the amount of rice to be cooked, an operation section 13 for setting the amount of rice to be cooked, the amount of water, and the time to finish cooking, and a display section 14 for displaying the end time for rice cooking.

The control circuit 12 in the control circuit section 11 calculates the operation start time based on the setting of the rice cooking end time from the operation section 13. When this operation start time comes, the control circuit 12 discharges the rice from the rice pot section 3, washes the rice in the rice washing section 6, and then puts the rice into the pot 1.

Further, the water supply unit 8 is operated to pour water into the pot 1, and at this point, the rice and water are mixed. The above operation start time is determined by calculating the time required for rice cooking based on the rice cooking amount and water amount data set by the operation unit 13, determining the time by subtracting the time required for rice cooking from the rice cooking end time, and starting the operation at that time. Time. In addition, a state in which water and rice are mixed is provided for a predetermined period of time, and the explanation will be given with reference to an actual example of the operating portion.

FIG. 3 shows a display section for setting a 24-hour timer, and FIG. 4 shows a display section for setting a dimer that can be set up to the day of the week.

First, when cooking rice with a timer, set the desired amount of rice to be cooked, the amount of water, and the time when you want to finish cooking the rice as shown in Figure 3 or 4.
Rice cooking amount key a of the operation unit 13 in the figure.

When setting is made through the water amount key 59, hour key C1, and reservation key d, and the start switch e is pressed, the set rice cooking amount and water amount are stored in the memory circuit 14, and the setting contents are displayed on the display 1.
6, the rice cooking amount reduction q, the water amount display area 1, the rice cooking end time display area i, and the day of the week display area j. Then, the amount of rice and water required is determined, the time required for all processes such as water supply process, rice washing process, and rice cooking process is calculated, and the operation starts at the time when the time required for all processes is subtracted from the rice cooking end time. time, and waits until the operation start time arrives. When the operation start time arrives, the set amount of rice is in the rice bin section 3.
The rice is taken out, washed in the rice washing section 6, and put into the pot 1. Also, the amount of water according to the set amount of water is supplied from the water supply part 8 to the pot 1.
Enter.

Until this operation start time, the rice and water are kept separate.
Therefore, there is no problem of spoilage caused by leaving rice and water in a pot for a long time as in the case of conventional methods.

When the set amount of rice and water are prepared in the pot 1, the pot 1 is heated by the heating means 2, and the temperature sensor 16
While detecting the temperature of the pot 1, the heating means 2 is controlled to complete the rice cooking.

All of these series of movements are controlled by the control circuit 12.

Effects of the Invention As is clear from the above embodiments, the present invention has a system in which the rice and water are placed separately during timer rice cooking, and the rice and water are placed in standby mode, and the rice and water are supplied to the pot when the operation start time comes. This solves the problem of spoilage caused by leaving rice and water in a pot for a long time, which is the case when cooking with a timer.

Therefore, it is possible to set the rice cooking end time for 13 hours or more, and even after the week when the timer setting for the day of the week is possible, and the usability can be greatly improved.

[Brief explanation of drawings]

Fig. 1 is a clock diagram of an automatic rice cooker showing an embodiment of the present invention, Fig. 2 is a sectional view showing the overall configuration thereof, and Fig. 3 is a front view of a display section and an operation section showing the first embodiment. Figure 4 is the second
FIG. 6 is a block diagram of a conventional automatic rice cooker. 1... Pot, 2... Heating means, 3...
...Rice bin section, 5...Rice washing section, 8...
・Water supply section, 11... Control circuit section, 13...
...Operation unit, 14...Memory circuit, 1e...
...Display section. Name of agent: Patent attorney Shigetaka Awano and 1 other person1
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Claims (1)

[Claims] a rice cooking section consisting of a pot and heating means for cooking rice;
A rice bin part that stores rice and discharges it in predetermined amounts, a rice washing part that washes the rice discharged from the rice bin part, a water supply part that supplies water necessary for cooking rice, and a control circuit part that controls each of these parts. and an operation unit for setting the rice cooking end time, the control circuit calculates the operation start time from the rice cooking end time,
An automatic rice cooker that fills the pot with rice and water when this start time is reached.