JPH0420359Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a rice cooker with a rice washing function.

(Prior art) When cooking rice in a rice cooker at home, the user uses a rice-cooking pot to wash the rice himself in the sink, and then places the pot with the polished rice in the rice cooker. Generally, it is set to .

(Problems to be solved by the invention) Conventionally, the user had to sharpen the rice by himself, which required a lot of effort, and when the rice was sharpened, the outer surface, which is rich in nutrients, was scraped off. There is a problem with the product being washed away.

The present invention was developed in view of the above circumstances, and its purpose is to be able to wash rice automatically, without requiring any effort, and to retain nutrients by eliminating the need to scrape off the outer surface of the rice during washing. There is a rice cooker that can be provided.

[Structure of the invention] (Means for solving the problem) The rice cooker of the invention has an overflow hole in the upper part of the peripheral side wall in the inner frame of the main body, and a plurality of overflow holes located below the overflow hole. A pot having a drainage hole is removably attached, a water level selection means is provided for selectively opening and closing the plurality of drainage holes of the pot according to the amount of rice, a water supply means is provided for supplying water into the pot, and the inner frame A drainage channel for discharging overflow water from the overflow hole or the drain hole to the outside of the main body is formed between the pot and the pot, and a rice-cooking heater is provided to heat the pot via an inner frame. Has characteristics.

(Function) According to the rice cooker of the present invention, when unwashed rice is stored in the pot and water is supplied into the pot by the water supply means,
Due to this water supply, water that overflows into the inner frame from the overflow hole or drain hole of the pot will be drained out of the main body from the drainage channel, and therefore the rice stored in the pot will be automatically drained by the flowing water. After that, the water supply from the water supply means is stopped and the rice is cooked using the rice cooking heater.

(Example) An example of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a main body, which consists of a flat base 2 having a bottom plate 2a, a substantially cylindrical outer frame 3 erected on this base 2, and a substantially cylindrical shape with a bottom disposed within this outer frame 3. The inner frame 4 and these inner frames 4 and outer frames 3
a frame 5 connecting the upper ends; and an inner frame 4 supported at the bottom of the inner frame 4 via a heating plate 6 to be described later.
and an approximately bottomed cylindrical heat shielding body 7 positioned between the heat shielding body 7 and the outer frame 3, and a heat insulating material 8 is interposed between the heat shielding body 7 and the outer frame 3. The lower part of the inner frame 4 is formed with a small diameter part 4a that projects inward, and the heating plate 6 is attached to the small diameter part 4a and the bottom part 4b so as to fit with the outer surfaces thereof. An electric heater 9 for cooking rice, which is a heater for cooking rice, is buried in the heating plate 6. Reference numeral 10 denotes a pot having a flange portion 10a at the top opening, which has a substantially bottomed cylindrical shape whose diameter gradually decreases toward the bottom 10b, and the diameter ratio between the bottom 10b and the top opening is is set to 1:1.5 to 2.5, for example. In the circumferential side wall of the pot 10, a plurality of overflow holes 11 are located on the same circumferential line in the upper part.
2 and 3, one auxiliary hole 12 is formed above the overflow hole 11, and one auxiliary hole 12 is formed below the overflow hole 11. Drain holes 13, 14 and 15 are formed in three levels, upper and lower. In this case, pot 10
, the lower edge position of the overflow hole 11 is set to be the water supply level for the maximum amount of rice cooking, and the drain hole 13,
The lower edge positions of 14 and 15 are set to be water supply levels for large, medium, and small amounts of rice cooking, respectively. 1
Reference numerals 6, 17 and 18 are plug members (see FIGS. 2 to 4) which are water level selection means and are made of heat-resistant rubber or the like, and these are connected to the drain holes 13 and 1, respectively.
4 and 15 in a water-tight manner so as to be removably fitted to close each other. The pot 10 is removably inserted into the inner frame 4 so that its flange portion 10a is placed on the upper end of the inner frame 4, and when the pot 10 is attached, the peripheral side wall is attached to the inner frame 4. A predetermined gap 19 is formed between the inner frame 4 and the peripheral side wall of the inner frame 4, and the lower portion including the bottom portion 10b is in contact with the small diameter portion 4a of the inner frame 4, which is the lower portion including the bottom portion 4b. in this case,
A part of the small-diameter part 4a of the inner frame 4 does not protrude inwardly but continues in an inclined manner with its upper part, so that when the pot 10 is attached, there is a gap 19 between it and the lower part. A drainage channel 20 (see FIGS. 1 and 5) communicating with the drain is formed. Further, the bottom 4b of the inner frame 4 is provided with a drain port 21 that communicates with the drain channel 20, and this drain port 21 is connected to a drain pipe 22 attached to the base 2.
It is connected to one end of the drain pipe 22 via a connecting hose 23, and the other end of the drain pipe 22 is connected to the base end of a drain hose 24. 25 is the outer panel 26 and the inner panel 2
7, which is pivoted to the upper opening of the main body 1 so as to be pivotable in the vertical direction via a hinge portion 28 to open and close it. Reference numeral 29 denotes a water supply pipe serving as a water supply means disposed within the lid 25, the base end of which projects outside the lid 25 and is formed into a connecting portion 29a;
The distal end portion is formed into a mounting tube portion 29b bent downward at a substantially right angle, and the mounting tube portion 29b
The tip of the inner plate 27 projects inward from the center of the inner plate 27. Furthermore, the lid body 25 is formed with a steam vent hole 30 that communicates between the inside and outside, and the inner plate 2
7 is equipped with packing 31. One end of a water supply hose 32 is connected to the connecting portion 29a of the water supply pipe 29, and the other end of the water supply hose 32 is connected to a water faucet 33 serving as a water supply source. Reference numeral 34 denotes an inner lid that is removably attached to the upper opening of the pot 10 to close it, and this has a steam vent hole 34a, and a holding member 35 as a water supply means is fitted and attached in the center. has been done. This presser member 35 is formed into a cylindrical shape from heat-resistant rubber or the like, and has an engagement stepped portion 35a formed at its upper end to engage with the engagement protrusion 29c at the tip of the mounting tube portion 29b. The lower end portion is formed into a tapered nozzle portion 35b whose diameter gradually decreases toward the bottom. Reference numeral 36 designates a circuit board disposed within the base 2, and a number of electronic components 37 constituting a control circuit are attached to this circuit board.
In FIG. 1, 38 is a shielding wall integrally formed on the base 2 to partition the drain port 21 side and the circuit board 36 side, and 39 is a heat insulation wall attached to the upper outer periphery of the peripheral side wall of the inner frame 4. 40 is a lid electric heater that is a heat-retaining heater that is attached to the upper surface of the inner plate 27 of the lid 25; 41 is an electric heater that is attached to the outer surface of the center of the bottom 4b of the inner frame 4, and is a thermistor, etc. 42 is a handle attached to the lid body 25; 43
A clamp member is pivotally installed on the handle 42 and holds the lid body 25 in a closed state, and 44 is a power cord wire.

Next, the operation of this embodiment will be explained.

First, the water level (water supply amount) in the pot 10 is selected according to the amount of rice to be cooked. For example, when the maximum amount of rice is to be cooked, the plug members 16, 17, and 18 are fitted into the drain holes 13, 14, and 15 of the pot 10 to close them (see Fig. 3). for,
Remove the upper plug member 16 from the state shown in FIG. 3 to open the drain hole 13, and in the case of medium-cooked rice, remove the middle plug member 17 from the state shown in FIG. 3 to open the drain hole 14. In the case of a small amount of rice to be cooked, the lower plug member 18 is removed from the state shown in FIG. 3 to open the drain hole 15. Incidentally, the removed plug member 16, 17 or 18 is fitted into the auxiliary hole 12 and stored.

Thereafter, an amount of unwashed rice corresponding to the selected amount of rice to be cooked is stored in the pot 10 as described above, and the inner lid 34 is placed on the back side of the lid body 25 in the open state, and the presser The member 35 is fitted into and engaged with the mounting tube portion 29b. In this state, when the top opening of the main body 1 is closed with the lid 25 and the lid 25 is held in the closed state with the clamp member 43, the inner lid 3
4 closes the upper surface opening of the pot 10, and the mounting tube portion 29b comes to press the inner lid 34 via the presser member 35, so that the peripheral edge of the inner lid 34 closes the upper surface opening of the pot 10.
is pressed against the flange portion 10a.

When the water faucet 33 is opened, the water from the faucet 33 is supplied to the water supply pipe 29 via the water supply hose 32, and the water is received by the presser member 35 through the attachment pipe portion 29b and is applied to the presser foot. It comes to be supplied into the pot 10 from the nozzle portion 35b of the member 35. In this case, since the nozzle portion 35b of the holding member 35 is formed in a tapered shape, the nozzle portion 35b
The water from b becomes a jet with a high velocity and collides with the rice stored in the pot 10, so that
Coupled with the fact that the pot 10 has an inclined shape that gradually becomes smaller in diameter toward the bottom 10b, the water flows from the top to the bottom, and then from the bottom to the top, as if by convection. As the rice ages, it will begin to be stirred, and the washing process will begin. By supplying water into the pot 10 in this manner, the water level in the pot 10 gradually rises, but when the water level reaches the lower edge of the overflow hole 11, the excess water overflows from the overflow hole 11 and is filled with the inner frame. 4, the overflow water flows down the gap 19 and reaches the drain port 21 via the drain channel 20, and further flows through the connecting hose 23, the drain pipe 15, and the drain hose 24.
is discharged to the outside of the main body 1 through. As a result, dirt adhering to the outer surface of the rice is washed off and washed away with overflowing water. When such rice washing has been carried out for a predetermined time (for example, 5 minutes), the faucet 33 is closed to stop the water supply, thereby stopping the rice washing operation. In this case, the drain hole 13 of the pot 10
When the plug members 16 to 15 are respectively closed, the water supply level in the pot 10 reaches the maximum water level (maximum amount of rice cooked), which is the water level up to the lower edge of the overflow hole 11, but the drain hole 13 is open. When the rice washing operation described above is stopped, the water in the pot 10 gradually overflows and is discharged from the drain hole 13.
Similarly, when the drain hole 14 is open, the water level becomes a medium water level (medium rice cooking amount) at the lower edge of the drain hole 14.
When the drain hole 15 is open, the water level at the lower edge of the drain hole 15 is small (a small amount of cooked rice).

Thereafter, when the rice cooking operation section is operated to set the control circuit, the rice cooking electric heater 9 operates to generate heat based on the control of the control circuit. Electric heater for rice cooking 9
When the heater operates to generate heat, the heating plate 6 is heated, and the small diameter part 4a and the bottom part 4b of the inner frame 4 are heated. (including the bottom part 10b), the water and rice in the pot 10 are heated, and rice cooking is started. After that, when the rice cooking is completed, the temperature of the bottom part 4b of the inner frame 4 rises rapidly due to almost no water in the pot 10, so the control circuit uses the temperature detection signal from the temperature sensor of the heat sensitive part 41 to detect this, and the control circuit completes the rice cooking. It is determined that the rice cooking electric heater 9 stops generating heat. After that, the control circuit operates the body electric heater 39 and the lid electric heater 4.
0 to generate heat and perform a heat-retaining operation.

In this way, according to this embodiment, the water faucet 33
Since the water is flowed through the water supply pipe 29 to the presser member 35 and sprayed into the pot 10 from the nozzle portion 35b, the water stream washes away dirt on the outer surface of the rice in the pot 10. In addition, 10 pots
Excess water inside the main body 1 overflows from the overflow hole 11 into the gap 19 and is discharged to the outside of the main body 1 via the drainage channel 20, so that the washed-off dirt is washed away by the running water, that is, the overflow water. Therefore, in recent years,
With improvements in rice polishing and storage technology, it has become increasingly known that commercially available non-glutinous rice does not need to be polished, as it is sufficient to simply wash away the dirt on its outer surface. According to the configuration in which rice is washed by the rice cooker, the rice can be washed automatically using running water, and the rice washing does not require any effort from the user.Moreover, unlike the conventional method, the outer surface of the rice is not scraped by sharpening. , nutrients can be secured.

In particular, according to this embodiment, drain holes 13, 14, and 15 are formed in three stages, which are located below the overflow hole 11, on the peripheral side wall of the pot 10, and these drain holes 13, 14, and 15 are connected to the plug members 16, 17, and 15. Since the drain holes 13 to 15 are selectively opened and closed by the plug members 16 to 18, when the drain holes 13 to 15 are all closed by the plug members 16 to 18, the drain holes 1
As if opening 3, 14 or 15,
The amount of water supplied into the pot 10 can be set to four levels: maximum, large, medium, and small. Therefore, even if the rice is washed automatically by supplying water into the pot 10, the maximum, The water level (water supply amount) in the pot 10 can be automatically adjusted to four levels: maximum, large, medium, and small depending on the amount of rice to be cooked (large, medium, and small).

According to this embodiment, since the auxiliary hole 12 is formed in the peripheral side wall of the pot 10 above the overflow hole 11, the drain hole 13, 14 or 15
The plug member 16, 17 or 18 taken out from the auxiliary hole 12 can be attached and stored.
There is an advantage that the removed plug member 16, 17 or 18 will not be lost.

In the above embodiment, three drainage holes 13 to 15 are formed in the peripheral side wall of the pot 10, but two of these drainage holes may be formed, or four drainage holes may be formed. More than one drainage hole may be formed.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but can of course be implemented with appropriate modifications within the scope of the gist.

[Effects of the invention] As explained above, the rice cooker of the present invention supplies water into the pot by the water supply means and drains excess water from the overflow hole at the top of the peripheral side wall of the pot to the inner frame and the pot. The water was allowed to overflow into the drainage canal between the
Rice can be washed automatically, requiring no effort, and the outer surface of the rice is not scraped off during washing, ensuring nutrients. Moreover, there is a water hole located below the overflow hole on the peripheral side wall of the pot. A plurality of drain holes are formed at the top of the pot, and a water level selection means for selectively opening and closing them is provided, so even if water is supplied into the pot to wash rice, the pot will be adjusted according to the amount of rice to be cooked. This has the excellent effect of automatically adjusting the water level within the tank in multiple stages.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which FIG. 1 is an overall longitudinal sectional front view, FIG. 2 is a perspective view of a pot, FIG. 3 is a partial sectional view of the pot, and FIG. 4 is a perspective view of a plug member. FIG. 5 is a partial sectional view of the inner frame and pot. In the drawing, 1 is the main body, 2 is the base, 3 is the outer frame, 4
is the inner frame, 9 is the electric heater for cooking rice (heater for cooking rice),
10 is a pot, 11 is an overflow hole, 12 is an auxiliary hole, 13 to 15 are drain holes, 16 to 18 are plug member water level selection means, 20 is a drainage channel, 25 is a lid body, 29 is a water supply pipe (water supply means), 34 is an inner lid, and 35 is a holding member (water supply means).

Claims (1)

[Scope of utility model registration request] A main body including an outer frame and an inner frame, and a main body that is removably attached to the inner frame of the main body and has an overflow hole in the upper part of the circumferential wall, and a plurality of drainage holes located below the overflow hole. a water level selection means for selectively opening and closing a plurality of drainage holes of the pot according to the amount of rice; a water supply means for supplying water into the pot; A rice cooker comprising: a drainage channel for discharging overflow water from an overflow hole or a drain hole of a pot to the outside of the main body; and a rice cooking heater provided to heat the pot via an inner frame. .