JPH06129A - Rice cooking method and its rice cooker - Google Patents

Abstract

PURPOSE:To eliminate the dispersion of the cooked-up state of rice caused by the error in the water quantity, and to always stabilize the dispersion of the cooked-up state, in a rice cooker. CONSTITUTION:The cooker is constituted of a feed water circuit 1b which is provided in a cover body 6 and communicated with the inside of a rice cooking pot 20, a flow meter 12 which is provided on this feed water circuit 1b and measures the feed water quantity, a feed water valve 13 for opening/closing the feed water circuit 1b, a necessary water quantity setting means corresponding to the rice cooking rice quantity, and a comparator 11 for comparing the detected water quantity by the flow meter 12 with a set value by the necessary water quantity setting means. Also, the cooker is provided with a water quantity setting device in which the feed water valve 13 is opened by a feed water signal, and the feed water valve 13 is closed by the output comparator 11 at the time when the detected output by the flow meter 12 coincides with the set value by the necessary water quantity setting means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooking method and a rice cooking apparatus, and more particularly to a rice cooking method using purified water and a rice cooking apparatus for carrying out the method.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open No. 3-90110 discloses a rice cooker equipped with an automatic water supply device for washing rice, feeding rice into a rice cooker, and supplying water in an amount suitable for the amount of rice. Has been proposed to. These have the advantage that the preparatory work before cooking rice can be automated. In addition, since the amount of water suitable for the amount of cooked rice can be accurately set, there is an advantage that it is possible to prevent a situation in which the water amount ratio is set inappropriately and the result of poor cooking is poor.

On the other hand, when the cooked rice is cooked, factors other than the above water amount ratio also influence, one of which is the problem of water quality. When using odorous water, like city tap water,
Even if the water ratio is set appropriately as described above, it will not be delicious rice. The present invention has been made in view of the above points, and an object thereof is to improve cookability by cooking rice using purified water. [Invention of Claim 1]

[0004]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to "store rice that does not require washing rice in a rice cooker (20) and add purified water in an amount suitable for the amount of cooked rice. I tried to cook the rice later. "

[0005]

The above technical means operates as follows. Rice cooker
(20) Rice that does not require rice washing (hereinafter referred to as rice that does not require rice washing) is stored, and purified water is added to cook rice. As a result, all the water contained in this rice becomes purified water and rice is cooked by this purified water.

If the rice is soaked for a certain period of time before the start of rice cooking, the water content of the rice before the start of rice cooking increases, so that the rice can be cooked well without adding a special water content promoting step.

[0007]

[Effect] In all the processes from the dipping process to the rice cooking process, the water contained in the rice and the water that comes into contact with the rice in the rice cooking are only purified water, so that no smell is given in the cooked state. Moreover, since the rice is cooked with purified water from which components that have an adverse effect on the cooked rice are removed, the cooked rice is improved.

It is possible to wash ordinary rice with non-purified water, soak it in purified water, and cook the rice with this purified water. In this case, the water to be purified will be contained at the time of washing the rice. . Further, when the rice is washed with purified water, the purified water is wasted, but the above method does not cause such inconvenience because it does not require washing rice. [Invention of Claim 2] In the invention of Claim 1 described above, an immersion step with purified water is provided for a certain time before the start of rice cooking. With this rice, the water content of rice before the start of rice cooking increases, so that the rice can be cooked well without adding a special water content promoting step. [Invention of Claim 3] The present invention relates to a rice cooker for carrying out the invention of Claim 2 above.

[0009]

[Technical Means] The technical means of the present invention adopted for this purpose is "a water supply device for automatically supplying an amount of water suitable for the amount of rice stored in the rice cooker (20), and the water supply device connected to the water supply device. It is provided with a water purification source and a timer device (T) which outputs a rice-cooking operation start signal to the rice-cooking control device after a lapse of a set time after the water is supplied by the water supply device.

[0010]

According to the above-mentioned technical means, when the rice which does not need to be washed is stored in the rice cooker (20) and a predetermined operation is performed, the water supply device supplies water in an amount suitable for the amount of rice. At this time, since a water purification source is connected to this water supply device,
Only purified water will be supplied to the rice stored in the rice cooker (20).

A timer device is provided after the clean water supply is completed.
The rice is soaked for the time set by (T), and the purified water is impregnated in the meantime, and the rice cooking control device is started by the output of this timer device (T) to start the rice cooking operation. In this way, just add rice that does not require washing in the rice cooker (20),
The invention of claim 2 is automatically executed. [Invention of Claim 4] This invention is intended to prevent mistaken addition of rice in the invention of Claim 3 above.

[0012]

[Technical Means] The technical means of the present invention adopted for this purpose is, for example, "a rice storage unit storing rice that does not require washing, and a rice discharge channel for introducing rice from this rice storage unit into a rice cooker (20). It was equipped with.

[0013]

[Operation / Effect] According to the above technical means, the rice that does not require washing is stored in the rice storage unit, so that only the rice that does not need washing is put into the rice cooker (20) through the rice discharge passage. It Therefore, the rice cooker (20)
It is possible to eliminate the inconvenience of throwing into.

[0014]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. [Embodiment 1] Embodiment 1 of the present invention corresponds to the invention of claim 3, and, as shown in FIG. 1, a gas cooked rice in which a main body case (2) is configured in a substantially rectangular parallelepiped shape with an upward opening. The auxiliary chambers (30) (3
1) is provided.

Specifically, an operation panel (3) is arranged at the upper end of the top surface of the auxiliary chamber (30) on the front side of the main body case (2), and a gas valve device (33) and Comparator (11)
A control device (C) including the above is housed, and these are electrically connected to the operation panel (3). Body case (2)
A rice cooker (20) is housed therein so that it can be taken out freely, and a heat insulating insulating cylinder (25) surrounding the outer periphery thereof and a gas burner (B) for heating the rice cooker (20) from below are housed.

Then, the auxiliary chamber (3
1) includes a flow meter (12), a water supply valve (13), and the water supply valve (1
A water supply circuit (1b) extending from 3) to the lid (6) is provided.
In addition, the water supply valve (13) has a water purifier (J
Incoming water circuit from ₁₎ (1a) is connected. The auxiliary room (3
The gas valve device (33) in (0) corresponds to the gas burner (B) arranged at the bottom of the main body case (2), and the control device (C)
Corresponds to the flow meter (12) and the water supply valve (13) in the auxiliary chamber (31).

As shown in the figure, the upper end (60) of the lid (6) is located above the main body case (2) so that the rear end of the upper lid (60) can be opened upward. 31) It is pivotally supported at the rear end of the main cover (60), and in the closed state, the engaging piece (6a) provided at the lower front end of the upper lid (60) protrudes at the upper front end of the body case (2). The structure is such that it is locked by the provided engagement piece (6b). Then, when the engaging piece (6a) is operated to release the locking device, the upper lid (60) is opened with the rear end portion as a fulcrum.

As shown in FIG. 2, an inner lid (61) is provided inside the upper lid (60), and when the upper lid (60) is closed, the inner lid (61) is turned into a rice cooker ( The upper part of 20) will be closed in a sealed state. The shape of the saucer part (21) of the inner lid (61) has a mounting hole (24) for the shaft holding body (22) formed at the center and the mounting hole (24 A plurality of through holes (7) and (7) are formed in the vicinity of the peripheral portion of (). And the lid (60)
The mounting hole (24) in the fitting groove (26) formed in the protrusion (25) provided near the lower end of the shaft holder (22) continuously provided in the center of the lower surface of the
It is integrated by forcibly fitting the peripheral portion of the. A connecting shaft (23) projecting from the center of the lower surface of the upper lid (60) can be detachably fitted to the shaft holding body (22).

In this embodiment, the connecting shaft (23) is formed with a through hole (10) for penetrating the water supply circuit (1b) and is extended into the upper lid (60). , Is connected to the water supply circuit (1b). This water circuit (1b)
Consists of a flexible tube with a flow meter (12) at the upstream end
Also, the water supply valve (13) is provided, and the downstream end of the water supply valve (13) coincides with the lower end opening of the through hole (10) formed in the connecting shaft (23).

In this rice cooker, a rice cooked rice amount setting button (33) displaying a numerical value corresponding to the rice cooked rice amount as shown in FIG. 3 is provided on the operation panel (3), and the rice cooker (20 ) Based on the amount of cooked rice stored in
4 any of the above, as shown in FIG. 4, from the rice cooked rice amount setting button (33), the rice cooked rice amount setter in the water supply control circuit (C ₁ )
It is input to the switch circuit (35) via the OR circuit. Then, the output from the switch circuit (35) is input to the water supply switch (15), and the output contact of the water supply switch (15) is closed. In this way, the required water volume setting means (1
4), flow meter (12), comparator (11), water supply valve (13) are in the operating state, the water supply valve (13) is opened and the water inlet circuit from the faucet (J) and the water purifier (J ₁ ). (1a), water injection is started into the rice cooker (20) via the water supply circuit (1b), and the flow rate is measured by the flow meter (12). On the other hand, the required water amount setting means (14) calculates the required water amount according to the amount of cooked rice selected by the rice cooking rice amount setting button (33), and outputs it to the comparator (11). When this output value and the output from the flow meter (12) match, a signal is sent from the comparator (11) to the switch circuit (36) in series with the water supply valve (13), and the switch circuit ( 36) Normally closed water supply valve (13)
The normally closed output contact (36a) is opened, the water supply valve (13) is closed, and water supply is stopped.

That is, in this embodiment, a predetermined amount of pre-measured rice that does not require washing is contained in the rice cooker (20),
Closing the upper opening of the body case (2) with the lid (6)
At the same time, the locking pieces (6a) (6b) are locked, and the upper opening of the rice cooker (20) is hermetically closed by the inner lid (61).
After this, the operation button (3
When you press (0) and operate the specific rice-rice setting button (33) that matches the measured value, the water supply valve (13) is turned on, and the water purified by the water purifier (J ₁ ) is supplied to the water supply circuit. (1b)
Is supplied to the rice cooker (20) via the
When the amount of water corresponding to the amount of cooked rice selected in (33) is poured into the rice cooker (20), the water supply is stopped, and then the rice cooking operation is started.

As the water supply circuit (1b), the connecting shaft (23) is not provided with the through hole (10), and the lower end of the water supply circuit (1b) is covered with an upper lid as shown by the chain double-dashed line in FIG. It may be configured so as to project into the gap between the (60) and the inner lid (61). In this case, the water supply circuit
The set amount of water output from the lower end of (1b) is stored in the inner lid (61).
Will be stored in the saucer part (21) of the
Since the through holes (7) and (7) are opened around the center of the, the water accumulated in the saucer part (21) can be discharged from the through holes (7) and (7) into the rice cooker.
(20) It will flow into the inside.

In this embodiment, as shown in FIG. 4, the switch circuit (36) is connected to the water supply control circuit (C ₁ ) for executing the above operation.
Circuit of the timer (T) with the normally open output contact (36b) of
Also, a rice cooking control circuit (C ₀ ) is added to insert the output contact of the timer (T) and to control from the start of rice cooking to the end of rice cooking. Then, the set time of the timer (T) is matched with the proper immersion time of rice that does not require washing.

Therefore, after the appropriate amount of water is supplied, a certain dipping time is secured, and then rice cooking is automatically started. [Embodiment 2] In the above embodiment, the pre-measured rice that does not need to be washed is put directly into the rice cooker (20). However, as shown in FIGS. 5 and 6, this is the rice container (40). It is configured to be equipped with a weighing rice box (4) equipped with
By operating (33), the amount of rice that does not need to be washed may be added in a quantity corresponding to the selected setting button.

In this embodiment, a rice cooker similar to that in the above-mentioned Embodiment 1 has a drawer having a front plate (64) at the front end.
It is mounted on (67) and is built into the cabinet (K) so that it can be pulled out freely, the weighing rice box (4) is built in, and the opening and closing device (65) that opens and closes the lid (6) of the rice cooker is built in. It is configured to do. Then, when the rice cooker is inserted into the cabinet at the predetermined position and the start operation is performed and the cooked rice amount setting button is pressed, the opening / closing device (65) operates and the lid (6) is opened to the predetermined opening. Then, the above-described rice operation is executed, and then the rice cooking operation is executed after a predetermined immersion time.

The weighing rice box (4) comprises a rotary valve type rice metering device (41) driven by a motor (M), and a rice discharging path (42) is connected to the discharge port. Further, the downstream end of the rice discharge channel (42) is set to be located above the peripheral edge of the rice cooker (20) when the lid (6) is opened by the opening / closing device (65). In order to automate the above-mentioned rice-metering operation, a structure may be adopted in which a rice-metering control circuit (C ₂ ) is added to the control circuit of FIG. 4, and for example, the structure of FIG. 7 can be adopted.

The rice control circuit (C ₂ ) is the rice cooked rice amount setting device (34)
The signal from is input to the drive amount setter (44) for each cooked rice amount setting button (33). Therefore, in the control circuit having the above-mentioned rice-rice control circuit (C ₂ ), when any one of the rice-cooked rice amount setting buttons (33) is pressed, the signal is sent.
A signal corresponding to the amount of cooked rice is input to (34) and is output from the rice cooked amount setter (34), which is input to the drive amount setter (44) of the motor (M). As a result, the rotary valve rotation amount corresponding to the amount of cooked rice is set, and the amount of rice set by the cooked rice amount setting button (33) is automatically output from the rice storage section (40) to the rice discharge channel. It is put into the rice cooker (20) via (42).

Further, since the water supply control circuit (C ₁ ) for automatically supplying the water amount suitable for the amount of cooked rice is equipped,
Simultaneously with the above-mentioned rice operation, the automatic water supply operation by the water supply control circuit (C ₁ ) is executed, and a predetermined amount of water is automatically supplied as in the above embodiment. For this reason, like the first embodiment, the flow meter (12) and the water supply valve (13) are inserted in the water supply circuit, and these are controlled by the water supply control circuit (C ₁ ). Needless to say.

As described above, according to the second embodiment, when the rice cooked rice amount setting button (33) is pressed, the amount of rice which does not need to be washed is automatically set from the weighed rice bin (4) to the rice cooker. The amount of water suitable for this amount of rice is automatically supplied, and then the rice cooking operation automatically proceeds after a certain immersion time. In the second embodiment,
The amount of water is set based on the amount of rice set by the rice cooked rice setting button (33), but the amount of rice in the rice cooker (20) is measured and the amount of water is set based on this measured value. Alternatively, the water level may be controlled by detecting the water level on the upper surface of the rice layer in the rice cooker (20) regardless of the amount of rice, and setting the detected water level to a constant value. Good.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an enlarged explanatory view of a lid (6).

FIG. 3 is an explanatory diagram of an operation panel (3).

FIG. 4 is an electric circuit diagram of an embodiment of the present invention.

5 is an external view of Example 2. FIG.

FIG. 6 is a sectional view of the second embodiment.

FIG. 7 is an explanatory diagram of a control device used for this.

[Explanation of symbols]

 (1b) ・ ・ ・ Water supply circuit (11) ・ ・ ・ Comparator (12) ・ ・ ・ Flow meter (13) ・ ・ ・ Water supply valve (14) ・ ・ ・ Necessary water amount setting means (2) ・ ・ ・ Main body case (20) ・ ・ ・ Rice cooker (6) ・ ・ ・ Lid body (60) ・ ・ ・ Upper lid (61) ・ ・ ・ Inner lid (7) ・ ・ ・ Through hole

Claims (4)

[Claims] 1. A rice cooking method in which rice that does not need to be washed is stored in a rice cooker (20) and the amount of purified water suitable for the amount of cooked rice is added to cook rice. 2. The rice cooking method according to claim 1, wherein after the purified water is added, rice that does not need to be washed is immersed in the purified water for a certain period of time and then cooked. 3. A water supply device for automatically supplying an amount of water suitable for the amount of rice stored in the rice cooker (20), a water purification source connected to the water supply device, and a set time elapsed after water is supplied by the water supply device. A rice cooker equipped with a timer device (T) which later outputs a rice cook operation start signal to the rice cooker control device. 4. The rice cooker according to claim 3, further comprising a rice storage unit storing rice that does not require washing and a rice discharge passage for introducing rice from the rice storage unit to the rice cooker (20).