JP3295382B2 - Rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker capable of easily and savoryly milling rice.

[0002]

2. Description of the Related Art In recent years, three minutes have been polished for five minutes,
Milled rice such as 7-minute milling (polished rice after 10-minute milling) has become more preferred than brown rice. In addition, household rice mills compatible with milled rice have been put into practical use and are becoming popular. However, the conventional rice cooker is provided with a rice flow for white rice and brown rice, and can cook white rice and brown rice separately, but cannot cook separately ground rice.

[0003]

Therefore, in order to cook, for example, 7-minute polished rice with a conventional rice cooker, a little more water than the water line of the white rice is selected, a white rice menu is selected, and the white rice cooking flow is selected. Was running. In addition, in order to cook three-minute polished rice, a little less than the water flow line of the brown rice was added, the brown rice menu was selected, and the brown rice cooking flow was performed. As described above, it is necessary to devise a method for cooking rice with a conventional rice cooker, and to have a skill to cook delicious rice.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to provide a rice cooker that can easily cook finely polished rice.

[0005] As means for solving the above problems, a rice cooker according to the present invention comprises an inner pot containing rice and water according to the amount of the rice, a heating device for heating the inner pot, and the heating device. In the rice cooker equipped with a control device that sequentially executes each step of preheating, medium heating, boiling maintenance, dry-up, spotting, and keeping warm by controlling the rice cooking, the rice milling degree of rice is selected. Provide a panel to do, indicate the amount of water according to the amount of the rice to be cooked, regardless of the degree of milling, provide the same water flow line in the inner pot, regardless of the degree of milling, as the degree of milling decreases, the time of the preheating step It is possible to cook the same amount of milled rice with the same amount of water regardless of the degree of milling by increasing the length, reducing the power and time of the boiling maintenance process, increasing the time, and lowering the dry-up temperature. .

[0006] According to the above means, milling for 3 minutes, milling for 5 minutes,
Depending on the degree of milling of rice, such as 7-minute milling, rice can be easily and deliciously cooked without failure.

[0007] Further, since an inner pot having the same water volume line is provided regardless of the degree of milling, rice with three minutes, rice with five parts, rice with seven parts,
Any one of the milled rice can use one water line, there is no need to finely adjust the water amount, and the water line of the inner pot becomes simple. In addition, since a panel for selecting the degree of milling of the milled rice is provided, the user can select the milled rice to be cooked and easily cook deliciously without confusing between white rice and brown rice.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a rice cooker 1 according to the present invention, which comprises a container body 2 and a lid 3 attached to the container body 2 so as to be openable and closable. The container body 2 has an inner pan 4
And a heating device 5 for heating the inner pan 4 is provided, and a temperature sensor 6 for contacting the outer surface of the inner pan 4 and detecting the temperature of the inner pan 4 is provided. I have.

The container main body 2 is provided with an operation display panel 7 as shown in FIG. A liquid crystal display panel 8 is provided at the center of the operation display panel 7, and a rice cooker /
There are provided a reheating operation button 9, a reservation operation button 10, a heat / night rest heat operation button 11, a start operation button 12, a menu selection operation button 13, and hour and minute setting operation buttons 14a and 14b. On the liquid crystal display panel 8, in addition to the time display, "normal", "soft",
General menu display of "rapid cooking" and "porridge",
There are provided minute grinding menu displays of "3 minutes", "5 minutes" and "7 minutes". The menu display and the minuted menu display can be selected by sequentially pressing the menu selection operation button 13 to sequentially display each display. A specific menu selection method will be described later in detail.

In place of the liquid crystal display panel 8 of the operation display panel 7 shown in FIG. 2, a liquid crystal display panel 8 as shown in FIG.
It is also possible to use a and 8b. That is, FIG.
The liquid crystal display panel 8a shown in (A) is provided with a three-minute, five-minute, and seven-minute minute polishing menu display outside the liquid crystal display panel 8a, and a liquid crystal corresponding to these minute polishing menu displays is provided. A triangular arrow is displayed at a position in the display plate 8a, and the triangular arrow is displayed by sequentially operating the menu selection operation button 13 so that a minute polishing menu corresponding to the position of the triangular arrow can be selected. It has become. The liquid crystal display panel 8b shown in FIG. 3B is almost the same as the liquid crystal display panel 8 of FIG.
This is printed by emphasizing the display of “minutes menu” below the minuted menu display of “minutes” and “7 minutes”.

Water flow lines as shown in FIGS. 4A and 4B are engraved at two opposing locations on the inner surface of the inner pan 4, respectively. That is, in one place, in order from the left in FIG.
a, 0.1 g, 1 g, 2 g of water line 15 of "fractioned rice"
b 、 Water volume line 1 of 0.1, 1, 2, 3
5c (including cooking) is provided. In the other part, as shown in FIG.
In addition, a water flow line 15b for "fractioned rice" and a water flow line 15c for "white rice" are similarly provided in addition to the water flow line 15d for one go. The water flow line 15d of “spread rice” is the same regardless of the degree of milling.

The rice cooker 1 has a CPU, a RAM,
A control device 16 including a ROM memory, a timer, and the like is provided, and a menu selection operation button 1 on the operation display panel 7 is operated according to a program stored in the ROM memory in advance.
The rice cooking operation is executed based on an operation signal from the third or the like and a detection signal from the temperature sensor 6.

Next, the operation of the rice cooker 1 having the above configuration will be described. In addition, "normal", "soft",
The general menus of “rapid cooking” and “porridge” are not directly related to the present application, and therefore, the following description will be given only of the minute-milling menu.

First, put a desired amount of milled rice in inner pot 4,
Using the water flow line 15d of the fractionated rice shown in FIG. 4, water is added according to the amount of the fractionated rice to be cooked. Next, turn on the power and select the minute rice menu.

Here, the selection of the rice-milled menu will be described. First, when the power is turned on, the previous menu is turned on. At this time, if the previous menu is “rapid cooking” and “porridge”, the previous menu is turned on. To change the lit menu, the menu selection operation button 13 is pressed once. As a result, the previously lit menu changes from lit to blinking, and all other menus of the general menu and the minute polishing menu are lit. And
Each time the menu selection operation button 13 is pressed, the adjacent menu changes from lighting to blinking, so that a desired menu can be selected by blinking.

In this way, when the menu selection is completed and the rice cooker switch 9 is pressed, the display of the selected menu is changed from blinking to lighting, and the display of other menus is turned off. Thereby, only the selected menu is lit during the rice cooking, so that it is possible to confirm which menu the rice is being cooked.

When the rice cooker switch 9 is turned on, the controller 1
6 executes the rice cooking process of the selected minute rice menu. In other words, as shown in FIG. 5, the preheating step, the medium filling, the boiling maintaining step, the dry-up, the spotting, and the heat retaining steps are sequentially performed. In the spotting process, in order to remove excess water, the heating device is turned on about twice and so-called twice cooking is performed.

[0019] Here, the minute grinding of the selected minute grinding menu
The rice cooking process is changed depending on the cooking time. That is, Table 1
As shown in the figure, in the preheating process,
Therefore, it takes a long time to absorb water.
Preheating process time T for 7 minutes polishing _{y α}, T_{y β}, T_{y γ}To

[Number 1] and _{T y α> T y β>} T y γ.

Further, in the boiling maintaining step, as the degree of milling decreases, it takes time to completely convert the inside of the rice into a pregelatinized form. _{rate) W F α, W F β} , and W _{F γ,} time T _F
α , T _{F β} , T _{F γ} ,

[Number 2] and _{W F α <W F β <} W F γ T F α> T F β> T F γ. In addition, in this embodiment, the boiling maintenance process of the 3-minute grinding and the 5-minute grinding shifts to the next dry-up process with the boiling maintenance time of 26 minutes, respectively. Instead, when the temperature reaches a predetermined temperature (127 ° C. in the present embodiment), the process proceeds to the dry-up process. This is in order to promptly shift to the next step depending on the volume of rice.

[0021] Furthermore, when the rice is cooked, the becha remains in the bottom layer, and when the rice is cooked with the same amount of water,
Those with a high degree of milling leave excess water. For this reason, the twice cooking power (conductivity) W _{M α} , W _{M β} ,
W _{M γ} and twice cooking time time T _{M α} , T _{M β} , T _{M γ}

[Number 3] and _{W M α <W M β <} W M γ T M α <T M β <T M γ.

[0022]

[Table 1]

As described above, the rice cooking process is changed according to the degree of milling of the selected milling menu, so that it is not necessary to adjust the amount of water and judge the menu for each degree of milling of the milled rice. In addition, you can easily cook the polished rice easily and deliciously.

As is apparent from the above description, according to the present invention, as the degree of milling decreases, the time of the preheating step is increased, the power of the boiling maintaining step is reduced and the time is increased, and the dry-up temperature is reduced. It is possible to cook rice with the same amount of water regardless of the degree of milling, so that it can be easily cooked without fail according to the degree of milling for 3 minutes rice, 5 parts rice, and 7 parts rice. We can cook deliciously. In addition, since an inner pot having the same flow rate line was provided regardless of the degree of splitting, a single flow rate line could be used for any of three-milled rice, five-milled rice, and seven-milled rice. There is no need to make subtle adjustments, and the water curve of the inner pot is simplified. Further, since a panel for selecting the degree of milling of the milled rice is provided, the user can easily select the milled rice to be cooked and easily cook it deliciously without hesitating between white rice and brown rice.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a rice cooker according to the present invention.

FIG. 2 is a front view of an operation display panel of the rice cooker of FIG. 1;

FIG. 3 is an exemplary front view showing another example of the liquid crystal display panel of the operation display panel in FIG. 2;

FIG. 4 is a front view showing a water flow line of an inner pot of the rice cooker of FIG. 1;

FIG. 5 is a flowchart showing a rice cooking operation performed by the rice cooker control device of FIG. 1;

[Description of Signs] 1 Rice cooker 4 Inner pan 7 Operation display panel 13 Menu selection operation button 15b Water flow line 16 Control device

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-167115 (JP, A) JP-A-7-265199 (JP, A) JP-A-10-94481 (JP, A) (58) Field (Int. Cl. ⁷ , DB name) A47J 27/00 109

Claims (2)

(57) [Claims] 1. An inner pot containing rice and water according to the amount of the rice, a heating device for heating the inner pot, and a preheating, a medium temperature, a boiling maintenance and a dry-up by controlling the heating device. , A rice cooker equipped with a control device for sequentially performing each step of spotting and warming, and a rice cooker provided with a panel for selecting a degree of crushing of the polished rice, and controlling a quantity of the polished rice to be cooked. Indicate the amount of water, regardless of the degree of milling, provide the same water flow line in the inner pot, as the degree of milling decreases, lengthen the time of the preheating step,
Rice cooking characterized by making the same amount of milled rice possible with the same amount of water regardless of the degree of milling by lowering the power and increasing the time of the boiling maintenance process and lowering the dry-up temperature. Cooking device. 2. The cooking process according to claim 2, wherein a double cooking step of turning on the heating device twice is provided in the spotting step, and the power of the double cooking step is reduced and the time is lengthened as the grinding degree decreases. The rice cooker according to claim 1, wherein