JP2001029226A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable closing of a cover by using a signal for the completion of rice washing. SOLUTION: This rice cooker 1 includes a rice cooker body 2, a cover 3 for covering an opening 2A in the upper side of the rice cooker body 2 in an open/closed manner, a hinge portion 4 for pivotally supporting the cover 3 at one side of the rice cooker body 2 in an open/closed manner, an energizing means 5 for energizing the cover 3 to the direction of opening, and a closed cover holding means 6 almost opposed to the hinge portion 4 for making the rice cooker body 2 and the cover 3 engageable/disengageable. An electric driving means 15 is mounted on a rice cooking device body 12 which executes programs for measurement and rice washing, for canceling the closed cover holding means 6 through a signal from an opening cover communication control 14 of the rice cooking device body 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker, and more particularly, to a rice cooker used in a general household such as an electric type or a gas type.
It relates to one provided with means.

[0002]

2. Description of the Related Art Rice cookers for general household use, whether of electric or gas type, include a rice cooker body, a lid for opening and closing an upper opening of the rice cooker body, and a rice cooker. A hinge portion pivotally supported on one side of the main body so as to be openable and closable, a biasing unit made of a spring material or the like for biasing the lid body in a direction in which the lid body is opened; Further, the rice cooker is provided with a lid closing and holding means such as a manually operable hook or the like which makes the rice cooker body and the lid detachable.

A device in which this rice cooker is incorporated in a rice cooker that programs and executes a rice cooking process such as weighing and washing rice is disclosed in Japanese Patent No. 2815186 and Japanese Patent No. 274006.
No. 6, JP-A-2759026 and the like, each of which is provided with a lid opening device (means for automatically opening the lid).

[0004]

In a conventional lid opening device, a link member is operated by driving a motor of the device main body, and the hook of the lid closing and holding means is disengaged by the link member. No. 2815186, 2
(See Patent No. 740066), or a device in which a lid is provided with a crank-operated opening / closing device and is operated by a drive motor (Japanese Patent No. 27006).
59026), each of which has a complicated mechanism configuration, and when the rice cooker is incorporated in a rice cooker that automatically performs a series of rice cooking operations of measuring rice, washing rice, and cooking rice by program control, it is technically difficult and expensive. There was a problem that it became cost.

[0005] Further, the rice cooker is a so-called bespoke product, and it is inconvenient to handle the rice cooker as a stand-alone unit, like a rice cooker used in ordinary households. An object of the present invention is to provide a rice cooker that solves such a problem.

[0006]

The present invention employs the following technical means to achieve the above object. That is, the rice cooker of the present invention according to claim 1 has a rice cooker main body 2.
A lid 3 that opens and closes the upper opening 2A of the rice cooker main body 2; a hinge 4 that pivotally supports the lid 3 to one side of the rice cooker main body 2; Urging means 5 for urging the rice cooker in the opening direction, and lid closing holding means provided at a position substantially opposite to the hinge part 4 and enabling the rice cooker main body 2 and the lid body 3 to be freely disengaged. And a rice cooker 1 having a rice cooker 6 is mounted on a rice cooker main body 12 for programming and executing weighing, washing and the like, and the lid is kept closed by a signal from a lid opening communication control unit 14 of the rice cooker main body 12. An electric drive means 15 for releasing the means 6 is provided.

By adopting such a configuration,
When the rice cooker 1 is used alone, if the hook (engaging portion) 6C of the lid closing means 6 is manually operated to release the connection, the lid 3 is biased about the hinge portion 4 as a fulcrum as before. Opened at 5. On the other hand, when the rice cooker 1 is incorporated into the rice cooker main body 12 to perform a series of rice cooking operations of weighing, washing and rice cooking, the lid closing / holding means 6 is released by the electric driving means 15 by a signal from the control unit 14. In this case, a low-cost rice cooker 1 that is small, compact, simple, and easy to handle can be provided.

Here, it is recommended that the signal from the lid opening communication control section 14 is transmitted to the electric drive means 15 via the optical coupling 16 (claim 2). As described above, the use of the optical coupling (photocoupler) 16 is advantageous not only in water filling (prevention of electric shock) but also in
The handling of the rice cooker 1 by itself becomes simple. Further, the lid closed holding means 6 is provided with an engaged portion 6A provided on the lid body 3 side and an engaging portion 6C provided on the rice cooker main body 3 side so as to be detachable from the engaged portion 6A. The engagement portion 6
C is operated by the electric drive means 15 for releasing the rice cooker main body 2.
It is recommended that it is built in (claim 3).

Since the electric driving means 15 is built in the rice cooker main body 2 as described above, the electric drive means 15 can be easily and bulky incorporated into the rice cooker main body 12 which programs and executes weighing, washing and the like. The versatility to the system kitchen is improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a rice cooker according to the present invention and a rice cooker main body incorporating the rice cooker will be described with reference to the drawings. In FIG. 1 showing a cross section of a rice cooker and FIG. 2 showing a plan view, a rice cooker 1 according to the present invention is capable of opening and closing a rice cooker main body 2 and an upper opening 2A of the rice cooker main body 2. A cover 3, a hinge 4 for pivotally supporting the cover 3 to one side of the rice cooker main body, an urging means 5 for urging the cover 3 in the opening direction, and the hinge And a lid closing and holding means 6 which is provided on a substantially opposite side (opposite side) of the rice cooker 4 and makes the rice cooker main body 2 and the lid 3 detachable.

The rice cooker body has a body 7 serving as an outer cover.
An inner pot (rice cooker) 8 is removably inserted into the body 7, and a heating element 9 for heating rice and a thermostat 10 for detecting completion of rice cooking are provided at the inner bottom. The lid 3 is
The outer lid 3A and the inner pot 3B are connected by a spring 3C.
A is pivotally supported by the body 7 via the hinge 4, and the biasing means 5 winds the coil spring 5 </ b> A around the shaft 4 </ b> A of the hinge 4 so that the cover 3 is always opened (the direction in which the cover is opened). It is energizing.

The lid closing and holding means 6 is provided with a hook-shaped engaged portion 6A provided on the inner surface of the outer lid 3A, and is rotatable via a pin or a shaft 6B so as to be detachable from the engaged portion 6A. Hook-shaped engaging portion 6 pivotably mounted in body 7 so as to be movable.
C, and the lid 3 can be opened by the urging means 5 with the hinge 4 as a fulcrum when the button operating portion 6D of the engaging portion 6C is operated by the finger A or the like to release the engagement. is there. On the front side of the body 7, a control unit 11 is provided.
Equipped with rice cooker on / off, heat retention, timer, etc.

The rice cooker 1 has a weighing device shown in FIG.
It is incorporated in a stand 13 and the like of a rice cooker main body 12 that programs and executes a series of steps such as rice washing, colander raising, and rice cooking. That is, the rice cooker 1 is mounted on the rice cooker main body 12 that programs and executes weighing, rice washing, and the like, and the lid-closed holding unit 6 is released by a signal from the lid opening communication control unit 14 of the rice cooker main body 12. A signal from the control unit 14 is transmitted to the electric driving means 15 and the motor of the lid closing means 50A shown in FIGS.

The electric drive means 15 is built in the body 7, and a solenoid 15A is provided on the lever portion of the engagement portion 6C.
Are connected to each other via a pin 15C or the like. The pin 15C is pressed with the finger A to the button operation unit 6D.
Has a play (e.g., a long hole) so that the player can operate the. In the present embodiment, the signal from the control unit 14, for example, the end of the rice cooking preparation process such as the completion of rice washing and the completion of raising the colander is communicated to the solenoid 15A by time processing, sensor detection, and the like by a microcomputer or the like. When the solenoid is excited and the solenoid rod 15B is retracted against the spring, the hook of the engaging portion 6C is disengaged from the hook of the engaged portion 6A, so that the lid 3 is automatically opened with the hinge 4 as a fulcrum. Then, the rice washing can be received in the inner pot 8, and its opening is confirmed by the sensor 50 shown in FIGS.

Further, the opening signal from the control unit 14 can be directly transmitted to the solenoid 15A, but is transmitted to the electric driving means 15 via the optical coupling 16 and the signal. The optical coupling (photocoupler) 16 is a non-contact type sensor including a light emitting unit 16A provided on the gantry 13 and a light receiving unit 16B provided on the body 7, and includes two electric circuits including a photoelectric conversion element and a light beam. Alternatively, a signal is transmitted by coupling with an optical fiber, thereby detecting whether or not the rice cooker 1 is set at a predetermined position of the gantry 13, and determining whether or not the inner pot 8 is set, and starting the rice cooking. Completion of the process up to heat retention
The communication with the control unit 14 is performed by the optical coupling 16.

However, instead of the optical coupling 16, communication may be performed by electric wiring or the like. However, by employing the optical coupling 16, the number of wirings is reduced (eliminated), and water is stored (prevention of electric shock accident, etc.). Not only becomes better, but also the rice cooker 1 can be more easily handled by itself. Referring to FIGS. 3 to 6, an example of a rice cooker main body 12 incorporating (equipped with) the rice cooker 1 according to the present invention is shown. FIG. 5 is a first embodiment conceptually illustrating the entire rice washing supply device (rice cooker main body 12) incorporating the rice cooker 1 according to the present invention.

In FIG. 5, a rice discharge port 1 which can be opened and closed at the bottom is provided.
7 and a rice storage tank 20 having a weighing means 19 in the lower part are arranged side by side in the left-right or front-back horizontal direction, and both tanks 18 and 20 are provided below the cylindrical body with a funnel 18A. , 20A. Rice storage tank 20
Has a lid 21 which can be opened and closed at its upper part, and the whole or a part of the lid 21 can be opened to supply rice from above and the funnel portion 20A has a rice storage amount (not shown). The sensor is provided, for example, as a two-tiered configuration.

Measuring means 1 provided at the lower part of rice storage tank 20
Reference numeral 9 designates a cylindrical measuring drum 23 having a rice cutout 23A in a part of the circumference thereof rotatably driven by a drive motor 24 shown in FIG. 3 inside a box-shaped airtight chamber body 22 around a horizontal axis. The measuring drum 23
Is a volumetric weighing means that can receive rice from the cutout 23A by rotation of the cutout 23A and discharge the weighed rice through the chute 25 when the cutout 23A faces downward.
The weighing value is set according to the number of rotations.

The upper portion of the rice washing tank 18 and the chute 25 of the rice storage tank 20 are connected to each other by a metered rice pumping means 26, which is connected to the rice washing tank 18.
And a pressurized airflow generator 28 for feeding metered rice under pressure by a pressurized airflow. The pressurized air flow generator 28 is constituted by a turbo-type or capacity-type blower (fan, blower) or a compressor. In the figure, a radial fan 28A is horizontally driven by a drive motor 29 shown in FIG. By rotating around the axis in the direction of the arrow A in FIG. 5, the metered rice flowing down through the chute 25 is subjected to airflow in the direction of the arrow B in FIG. Through the upper part of the rice washing tank 18 as shown by arrow C.

The chute 25 is directed downward in the direction of the arrow B with respect to the first conduit 27 so that a part of the metered rice adhered to the chute 25 or the like is first airflow B. This is advantageous in that it can be introduced into the pipe 27, but of course,
This directivity is not a problem if the inclination of the chute 25 is equal to or greater than the angle of repose. The first conduit 27 between the communication portion between the chute 25 and the first conduit 27 and the generator 28 is provided with a damper 30 for adjusting the air volume (wind pressure). Numeral 30 is movable in the radial direction of the first conduit 27.

The rice washing tank 18 has a stirring means 31 therein. The metering is performed by driving (starting) the stirring means 31 and supplying water through the water supply means 32 to the rice washing tank 18 by pressure. Rice can be washed (washed). In the illustrated example, the stirring means 31 includes a plurality of stirring rods (blades) 35 having a radially extending portion and an axially (vertically) extending portion on a drive shaft 34 which is rotated about a vertical axis by a drive motor 33. Although it is shown that the rice washing tank 18 is attached by the jet water flow,
The washing may be performed by circulating rice grains in the inside.

The rice discharge port 17 is provided in the funnel 1 of the rice washing tank 18.
8A, there is provided a drain box 37 having a detachable funnel 36 having a large number of holes (mesh) through which water, bran and the like can pass and rice grains cannot pass through. The drain pipe 38 is connected to the drain pipe 37 to discharge washing water containing sugar and the like to the outside of the machine.
9 is connected to the on-off valve 4 provided in the pipe 39.
The rice is washed by the pressure difference as shown by arrows D and E in the inner pot 8 of the electric or gas type rice cooker 1 having the lid 3 opened above the rice discharge port 17 through the pressure D as shown by arrows D and E. (Washed rice) can be pumped.

The water supply means 32 is for supplying washing water and cooked rice water (water amount suitable for the amount of cooked rice) to the rice washing tank 18, and a pressure water source such as a tap having a cock or the like, a water storage tank, or the like. A water supply hose (pipe) 42 connected to a water source 41 is provided with a flow sensor 43 and an on-off valve 44.
A water supply device 45 such as a nozzle or a shower is provided at an end portion of the device so as to be detachable. The metering motor 24, the blower motor 29, the rice washing motor 33, each open / close valve (solenoid valve) 38A,
40, 44, the flow sensor 43, and the like can be automatically remotely controlled by a rice cooking program (control unit 14) set by a microcomputer or the like from the start of rice cooking to the completion of rice cooking, such as the amount of rice, rice cooking time.

Next, a series of operations (operations) according to the first embodiment shown in FIG. 5 will be described. A predetermined amount of rice is stored in the rice storage tank 20, and when an operation signal (work start signal) such as a start button or a start button is turned on, the amount of rice corresponding to a requested and requested rice cooking amount is measured by the metering means 1.
9, the metered rice is pumped to the rice washing tank 18 through the first conduit 27 as indicated by arrows B and C by the activation of the pressurized air flow generator 28 (at this time, the rice washing tank 18 Is closed by closing the on-off valve 40).

During the pressure feeding of the metered rice, the pressure loss caused by the metering drum 23 or the like is caused by setting the cutout 23A of the drum 23 to the rice storage tank 20 side (the state shown in FIG. 5). It is rarely sucked by the flow. When the metered rice is pumped by the pressurized air flow by the metered rice pumping means 26, the rice washing tank 18 is pressurized by the pressurized air flow and the like. Turbulence, etc., which is the cause of broken rice. Therefore, part of the pressure (air) in the rice washing tank 18 is released outside the machine by opening the on-off valve 38 appropriately, and a pressure difference is generated there.
The internal pressure of the rice washing tank 18 can be prevented from rising, and the on-off valve 38 and the like serve as pressure reducing means.

The pressure-feeding of the metered rice to the rice washing tank 18 by the pressurized air flow is performed by adjusting the opening of the damper 30 at an air volume (wind pressure) suitable for the size of the metered rice. When a predetermined metered rice is pumped into the rice washing tank 18, the generator 2
8 is stopped, that is, in a state where the pressurization of the pressurized air flow is stopped, the rice washing tank 18 is shifted to the washing (washing) step of the metered rice. During this rice washing process,
As described above, in a state in which the pressurized air flow is stopped, the metered rice is washed through the rotational drive of the stirring means 31 and the supply of the washing water from the water supply means 32.

In this rice washing step, the on-off valve 38 is closed, the dirt is circulated through an overflow pipe (not shown) communicating the drain box 37 and the upper part of the rice washing tank 18, and rice washing is performed a plurality of times. By fully opening the drain valve 38, the wastewater containing the bran and the like is discharged at once from the machine through the drain pipe 38. When the rice washing step is completed, the rice washing step (wet rice washing is carried out by stirring means 15) as necessary.
After grinding through the slow rotation of the
Move to the colander raising process (wash the wet rice in tank 18
Making the rice grains swell and soften by storing it in the inside for a certain period of time is called a colander raising.
In some cases).

When the rice washing process is completed (after the colander raising process is completed when the colander raising process is included), the on-off valve 38A,
The valve 40 is closed, the rice washing tank 18 is kept in a sealed state, and the pressurized air flow is restarted from the top of the rice washing tank 18 through the first pipe 27 by restarting the pressurized air flow generator 28. By pressurizing, the upper part of the rice washing tank 18 is pressurized (pressurized) by the pressurized air flow, and after the pressurization, the rice discharging valve 40 is fully opened, whereby the rice washing tank 1 is opened.
The rice washed in the inside 8 is pressure-fed to the rice cooker 8 by the above-mentioned pressurization and pressurized air flow through the second conduit 39 as shown by arrows D and E (since the rice washes are in a wet state). , Rice cooker 8
It is also possible to raise the monkey within).

As described above, when the rice washing process is completed, the rice cooker 1 is set to the normal position via the optical coupling 16 by the control communication from the control unit 14 of the rice cooker main body 12, or the rice cooker 1 is in the rice cooking standby state. After confirming whether it is in a state, that is, whether the empty inner pot 8 is set, whether it is the previous rice cooking process, or the like, the solenoid 15A is excited to release the engaging portion 6C, and the engaged portion is disengaged. When the engagement with the portion 6A is released, the lid 3 is opened around the hinge portion 4 by the urging means 5 and stands by in a state in which rice can be washed.

The opening of the lid 3 is confirmed by an opening suncer 50 shown in FIGS. When the upper part of the rice washing tank 18 is pressurized, it is also possible to pressurize the upper part of the rice washing tank 18 by sending a pressurized air flow to the upper part of the rice washing tank 18 with the on-off valve (rice discharging valve) 40 opened. However,
Once (temporarily), the on-off valve 40 is closed as described above, and the pressurized air flow is fed into the rice washing tank 18 once (temporarily), that is, the upper part of the rice washing tank 18 is pressurized (pressurized) in advance. ), And then opening the rice discharge valve 40 is advantageous in terms of pumping the wet washed rice with a pressurized air flow.

Further, after the above-mentioned rice washing step, it is also possible to feed the rice cooked water together with the rice washing by a pressurized air flow through the second conduit 39 together.
That is, after the rice washing step (after passing through the colander raising step), the flow rate sensor 43 of the water supply means 32 measures the water addition / reduction amount as set, and the cooked water is supplied to the rice washing tank 18 via the water supply tool 45. As described above, the rice cooker and the rice-washing water with the pressurized air supplied to the rice-washing tank 18 by the pressurized air flow and the opening / closing valve 40 are opened through the second conduit 39 by the pressurized air flow. 8 can also be pumped.

When the rice cooked water is pumped together with the rice washing, the stirring means 31 is intermittently rotated (meaning repetition of rotation and stop), so that the rice washing in the rice washing tank 18 can be pumped in a well-balanced manner. Becomes Further, a part of the cooked rice water is supplied to the rice washing tank 18 so that the rice washing 80-
90% (most of the washed rice) and a part of the cooked water are pumped from the rice discharge port 17 by the above-described pressurization and pressurized air flow (at this time,
(It is desirable that the stirring means 31 be rotated intermittently.) Thereafter, once the driving of the generator 28 is stopped, the generator 28 is restarted and the remaining cooked water and the remaining rice are added from the rice washing tank 18. It is also possible to feed by pressure and a pressurized air flow. According to this, the rice cooked water is fed by the pressurized air flow prior to the rice washing, which is advantageous in that residual rice can be prevented.

The amount of cooked rice or the amount of water added (cooked water) requires fine adjustment of the air flow (wind pressure). This can be achieved by adjusting the opening of the damper 30. After predetermined rice washing and rice cooking water are supplied to the rice cooker 8, the lid closing means 50A having a hook 50C that moves up and down as shown by an arrow F in FIG. The body 3 is automatically closed against the urging means 4 with the hinge 4 at the fulcrum, and this closing is performed by operating the control unit 11 while holding by the closing and holding means 6 (the control communicated with the control unit 14). However, the process proceeds to the rice cooking process using the electric or gas rice cooker 1.

The lid 3 can be closed manually. FIG. 6 shows a second embodiment of the rice cooker main body 12, in which the basic configuration and operation are common to those of the first embodiment described above with reference to FIG. The points will be described. In a state where the rice discharge port 17 of the rice washing tank 18 is closed, the metered rice
As a means for partially releasing the pressure in the rice washing tank 18 when the pressure is sent to the upper part of the rice washing tank 18 by a pressurized air flow,
Pressure relief means (pressure reduction means) 5 to upper lid 18B or cylindrical upper part 18C which can be opened and closed in the sealed state of rice washing tank 18
1 is provided.

That is, as shown in FIG. 6 (B), the tank 18 is provided with a group of pores 51A (a mesh is also possible), and a shutter 51B for opening and closing the group of pores 51A is provided. This shutter 51B has a mesh 51
It is covered with an exhaust box 51E having an exhaust port 51D with C. Therefore, when the measured rice is pressure-fed to the rice washing tank 18, the shutter 51B is fully opened, half-opened, etc., and a part of the pressure in the tank 18 is released through the group of fine holes 51A and the exhaust port 51D. Later (after raising the colander), when rice is fed to the rice cooker 8 by pressurization of the tank 18 and pressure feeding by a pressurized air flow, the shutter 51B is fully closed so that the inside of the rice washing tank 18 can be sealed.

Further, when the rice-washing (which may include rice-cooking water is the same as described above in some cases) is pressure-fed through the second conduit 39, the rice-washing and rice-cooking water may be scattered. A scatter prevention means 52 for preventing scatter is provided at the end of the second conduit 39 in a detachable manner. This scattering prevention means 5
As shown in FIG. 6 (C), a skirt-shaped or non-lens-shaped, preferably elastic ring 52A can be adopted as the second member 2, and an umbrella is attached to the female screw 52B of the support tool 52C having the female screw 52B. A male screw 52E of the valve body 52D is screwed in such a way that it can move forward and backward.

FIGS. 3 and 4 show the rice cooker 1 according to the present invention incorporated in the rice cooker main body 12 conceptually shown in FIGS. 5 and 6, and for home use, for example, a system kitchen stand, At this time, the device is mounted on a table 13 such as an under table, and the parts common to those described above (the configuration and operation of FIGS. 5 and 6) are denoted by common reference numerals. The rice washing tank 18 and the rice storage tank 20 are housed side by side in front and rear or left and right on a horizontal plane or on a surface having a slight vertical difference in one housing 53.
A rice cooker 13 is provided, on which the electric or gas-type rice cooker 1 is mounted.

The lid 3 of the rice cooker 1 can be opened and closed by manual operation as described above, and can be closed by a communication signal from the control unit 14. The end 39A of the second conduit 39 is rotatable around the vertical axis, and the rice washing (with or without rice cooking water) may be performed with the lid 3 opened. 3) is rotatable between a position where the same is supplied to the rice cooker 8 (dotted line in FIG. 3) and a position where the rice cooker 8 is off the rice cooker 1 (solid line in FIG. 3) during cooking.

It should be noted that various controls of the rice cooker 1 and various controls of the rice washing machine (devices in the housing 53 such as the rice washing tank 18) can be controlled by the remote information transmitting means 16 such as a photocoupler. According to the rice washing machine shown in FIGS. 3 and 4, since the rice cooker 1 and the like are provided outside the housing 53, the inside of the housing 53 is not dewed by steam, hot air or the like during cooking. . The pressurized air flow generator 28 may be a blower, a compressor, or various pressurized pumps (a type of compressor).

The closing signal of the lid closing holding means 6 and the closing signal of the lid closing means 50A are transmitted to the control unit 11 of the rice cooker 1.
The opening sensor 50 can also be provided on the hook of the lid closing means 50A.

[0041]

As described above in detail, according to the present invention, a rice cooker body capable of automatically controlling a series of operations from weighing to washing and discharging rice in a compact design regardless of whether it is for business or home use. In addition, a rice cooker that can be incorporated can be provided.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the rice cooker according to the present invention.

FIG. 3 is a front view showing a specific arrangement of a rice cooker main body into which the rice cooker according to the present invention can be incorporated.

FIG. 4 is a side view showing a specific arrangement of FIG. 3;

FIG. 5 is a conceptual diagram showing a rice cooker main body and a rice cooker.

FIG. 6 is another example of FIG. 5, where (A) is an overall configuration diagram,
(B) shows a pressure relief portion, and (C) shows a rice discharging portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice cooker 2 Rice cooker main body 3 Lid 4 Hinge part 5 Energizing means 6 Lid closing holding means 14 Lid opening communication control part 15 Electric drive means

Claims (3)

[Claims] 1. A rice cooker main body (2), a lid (3) for opening and closing an upper opening (2A) of the rice cooker main body (2), and a lid (3) comprising the rice cooker main body ( 2) a hinge part (4) pivotally supported on one side so as to be openable and closable, and the lid (3);
Urging means (5) for urging the rice cooker in the opening direction and the rice cooker main body (2) and the lid (3) provided at a position substantially opposite to the hinge part (4). The rice cooker (1) having the lid closing holding means (6) which can be detached is weighed,
Rice cooker main body that programs and executes rice washing etc. (12)
And an electric driving means (15) for releasing the lid closing holding means (6) by a signal from the lid opening communication control section (14) of the rice cooker main body (12). And rice cooker. 2. The electric drive means (1) relays a signal from the lid opening communication control section (14) through an optical coupling (16).
The rice cooker according to claim 1, wherein the rice cooker is transmitted to (5). 3. A rice cooker body (6) in which a lid closing and holding means (6) is detachable from an engaged portion (6A) provided on the side of the lid (3) and the engaged portion (6A). 3) The electric drive means (15) which comprises an engaging portion (6C) provided on the side and which releases the engaging portion (6C) is built in the rice cooker main body (2). 3. The rice cooker according to claim 1, wherein the rice cooker is a rice cooker.