JP3181820B2 - Rice squirt prevention device for 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 squirt prevention device for a rice cooker.

[0002]

2. Description of the Related Art When rice is cooked by a rice cooker, starch-based soup (so-called rice cake) is spilled out together with steam to the outside.

In order to prevent this spill, a top plate is provided in the middle of a steam passage conventionally provided in the lid, the steam passage is bent by the top plate, and the bent portion separates the steam from the steam. There is known a required spout prevention device in which steam is dropped into a pool below a bent portion and steam is discharged from a steam hole above the pool to the outside (for example, Japanese Utility Model Application Laid-Open No. 60-149334). Gazette).

[0004]

However, in the above-mentioned apparatus, separation of the ash and steam is insufficient, and sometimes the ash blows out together with the steam. In addition, there was also a problem that overflowing as the amount of toys accumulated in the tongue pool increased.

SUMMARY OF THE INVENTION Accordingly, a first object of the present invention is to promote the separation of tongue so that the tongue does not blow out, and to prevent the tongue from overflowing from the tongue pool. This is the purpose of 2.

[0006]

In order to achieve the first object, the present invention provides a steam cooker comprising an inner cylinder provided on a lid of a rice cooker and an outer cylinder surrounding the inner cylinder.
Road is formed, thereby forming a steam passage on the hole in the inner cylinder upper end, a steam passage top plate provided on the outer tube upper end, the upper surface of the vapor passage ceiling plate allowed exposure to the lid surface, the outer tube of the upper Symbol In the rice cooking jar prevention device, which is provided with a tongue pool below the inner chamber and a steam hole in the steam passage top plate,
At the upper end of the inner cylinder, a peripheral wall centered on the upper hole of the steam passage
Provided on the lower surface of the steam passage top plate between the double peripheral walls.
A downwardly facing inner peripheral wall fitted at a required interval to the
A downward facing outer peripheral wall is provided outside the heavy peripheral wall.
The upper and lower inner and outer double peripheral walls are in the middle of the steam passage.
Form a bent passage, and connect the steam hole with the downward facing outer peripheral wall.
This is a configuration provided on the outside .

[0007] According to the above configuration, the steam passage top plate is kept at a relatively low temperature because it is in contact with the outside air. For this reason, the steam containing the tongue in contact with the lower surface of the vapor passage top plate is easily condensed, and the water droplets including the tongue generated by the condensation fall into the tongue pool. This prevents the ash from spouting from the steam holes. In addition, upper and lower inner and outer
Since the curved passage is formed by the peripheral wall, the curved passage is formed.
The above-mentioned condensation is further promoted during passing through.

[0008]

Further, when the downwardly facing peripheral wall formed on the lower surface of the steam passage top plate is formed so as to have a length approaching the pool, the peripheral wall extending to the vicinity of the pool will allow the steam containing the steam to flow. Alternatively, the water drop containing the rice cake is surely guided to the rice cake pool, so that the water drop surely falls into the rice cake pool.

[0010] In order to achieve the second object, the present invention provides a rice cooking jar having a bottom discharge hole which is opened inside a rice cooker, and a rice cooker provided on a lower surface of the rice discharge hole. A check valve is provided that is closed when the internal pressure of the jar is high and is opened when the pressure is reduced.
According to this configuration, the internal pressure is high during rice cooking, and the check valve closes the drain hole if necessary. As a result, steam does not escape from the hole, and the cat does not fall. When the rice cooking is completed, the internal pressure drops, so that the check valve is opened by the weight of the rice cake, and the rice cake is discharged into the rice cooker. What
Note that the inner cylinder has a steam passage pilot hole at the steam passage entrance.
A regulating plate is provided, and the lower hole of the steam passage is connected to the upper hole of the steam passage.
A configuration having a smaller diameter can also be employed.

[0011]

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

FIG. 1 shows an entire rice cooker, which is composed of a hinge 2 provided at a rear end of a main body 1.
The cover 3 is attached so as to be openable and closable. A steam passage top plate 5 having a steam hole 4 is exposed at a central portion of the lid 3.

As shown in FIG. 2, the inside of the lid 3 is an inner lid 6.
An inner cylinder 8 constituting a steam passage 7 is attached to the inner periphery of the hole at the center of
, An outer cylinder 11 surrounding the inner cylinder 8 is attached. Outer cylinder 1
The above-mentioned steam passage top plate 5 is integrally provided on the upper end face 1.

A regulating plate 13 having a steam passage pilot hole 12 is provided in the middle of the inner cylinder 8, and an inner cylinder inner chamber 14 is provided above the regulating plate 13. Further, a vapor passage upper hole 16 is provided in the center of the inner cylinder top plate 15 at the upper end of the inner cylinder inner chamber 14.

On the upper surface of the inner cylindrical top plate 15, an upwardly directed inner peripheral wall 17 and an outer peripheral wall 18 surrounding the vapor passage upper hole 16 are formed concentrically at a predetermined interval.

The inner cylinder top plate 15 is opposed to the lower surface of the above-mentioned steam passage top plate 5, and faces downward between the inner peripheral wall 17 and the outer peripheral wall 18 on the lower surface of the steam passage top plate 5. Is formed, and further, a downwardly directed outer peripheral wall 21 surrounding the outer peripheral wall 18 is formed.

The inner cylinder top plate 15 and the steam passage top plate 5 and the upwardly directed inner peripheral wall 17 and outer peripheral wall 18 provided thereon are provided.
A bent passage 22 is formed by the inner wall 19 and the outer wall 21 facing downward.

The downward facing outer peripheral wall 21 faces an outer cylinder inner chamber 23 formed between the outer cylinder 11 and the inner cylinder 8. At the lower part of the outer cylinder inner chamber 23, a pool 24 is provided. Outside the downwardly facing outer peripheral wall 21, the steam hole 4 is provided in the steam passage top plate 5.

As shown in FIG. 3, the bottom of the above-mentioned storage 24 is interposed between an outwardly facing collar 25 at the lower end of the inner cylinder 8 and the collar 25, the outer cylinder 11, the lid intermediate member 9 and the like. The inner cylinder 8 is provided with a drain hole 27 at the bottom of the flange 25 of the inner cylinder 8. In addition, the brim 25
An annular check valve 28 is fastened to the lower surface of the ring by a nut 29 screwed into the flange 25, and the check valve 28 closes the drain hole 27.

The check valve 28 is formed of a plastic or rubber sheet, and usually has a slight gap between the check valve 28 and the lower surface of the flange 25. The discharge hole 27 is closed if it is strongly contacted. When the internal pressure is reduced after the rice cooking, the check valve 28 is opened by the weight of the bed 31 of the bed 24.

Incidentally, as shown in FIG.
A configuration may be adopted in which the downwardly directed outer peripheral wall 21 formed on the lower surface of the inner cylinder 8 is elongated downward and the range of the overlapping portion A with the inner cylinder 8 is increased.

The embodiment of the present invention is as described above. When steam is generated by starting rice cooking by the rice cooker, the steam passes through the lower hole 12 of the steam passage and enters the inner cylinder inner chamber 14 to be depressurized. Is done. Further, it enters the bent passage 22 from the upper hole 16 of the steam passage, and contacts the lower surface of the steam passage top plate 5 while passing through the bent passage 22. The steam passage top plate 5 has a lid 3
The surface is exposed to the surface and is in contact with the outside air, so that the temperature is relatively low, and the vapor that comes in contact with the surface is easily condensed.

When cooking rice proceeds, steam is mixed with steam, but the steam is condensed and the water drops generated by the steam trap the steam to fill the steam. For this reason, separation of the steam and the water droplets containing the wastewater is performed near the outlet of the bent passage 22. The steam rises and is discharged to the outside through the steam holes 4, but the water droplets containing the water fall into the water pool 24.

In this case, since the flow of steam is strong near the outlet of the bent passage 22, light water droplets including the rice cake are discharged from the steam holes 4 to the outside through the downwardly directed outer peripheral wall 21. There is. In order to prevent this, the downwardly directed outer peripheral wall 21 is extended downward as shown in FIG. 4, and the overlap portion A is elongated so that the lower end thereof is closer to the pool 24 with the ash. The water droplets can surely fall into the pool 24 if necessary.

When the internal pressure is reduced after the rice cooking is completed, the check valve 28 is opened, and the rice ball 31 of the rice pool 24 falls from the rice drain hole 27 into the rice cooking jar by its own weight.

FIG. 5 shows another modification. In this case, the inner cylinder 8 'is formed to have the same diameter as the inner diameter of the upper hole 16 of the steam passage, and the downward facing peripheral wall 21' of the top plate 5 of the steam passage is also made single. It was done. The check valve 28 is provided at the lower end flange 32 of the inner cylinder 8 '.
Attached to

Even with such a configuration, the vapor passage top plate 5 is exposed on the outer surface of the lid 3, so that the vapor condensation is promoted. Further, the downward facing peripheral wall 21 ′ extends long downward to the vicinity of the storage 24, and overlaps with the inner cylinder 8 ′.
Is sufficiently long, it is possible to prevent the steam containing the waste from the inner cylinder 8 ′ from being directly discharged to the outside through the steam hole 4.

[0028]

The present invention has the effect of promoting the condensation of steam containing tongue and preventing the tongue from being ejected to the outside.

Further, according to the present invention, it is possible to prevent overflow from occurring by automatically dropping the tongue collected in the tongue pool into the rice cooker at the end of rice cooking.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rice cooker according to an embodiment.

FIG. 2 is a sectional view of a lid part of the above.

FIG. 3 is a cross-sectional view of a portion of the stagnant pool according to the first embodiment.

FIG. 4 is a cross-sectional view of a modified example of the bed collecting part of the embodiment.

FIG. 5 is a cross-sectional view of another modification of the bed collecting part according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Hinge 3 Lid 4 Steam hole 5 Steam passage top plate 6 Inner lid 7 Steam passage 8, 8 'Inner cylinder 9 Lid intermediate member 11 Outer cylinder 12 Steam passage pilot hole 13 Regulator plate 14 Inner cylinder inner chamber 15 Inner cylinder top Plate 16 Steam passage upper hole 17 Inner peripheral wall 18 Outer peripheral wall 19 Inner peripheral wall 21 Outer peripheral wall 21 'Downward peripheral wall 22 Curved passage 23 Outer cylinder inner chamber 24 Annex pool 25 Collar section 26 Seal member 27 Annex discharge hole 28 Check valve 29 Nut 31 Needle 32 Collar

Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A47J 27/00 103

Claims (4)

(57) [Claims] 1. A steam passage is formed by an inner cylinder provided on a lid of a rice cooker and an outer cylinder surrounding the inner cylinder. A steam passage upper hole is formed at an upper end of the inner cylinder, and a steam passage upper hole is formed at an upper end of the outer cylinder. Providing a steam passage top plate, exposing the upper surface of the steam passage top plate to the lid surface, and providing a sleep pool below the outer cylinder inner chamber,
In the rice cooker squirt prevention device having the steam passage top plate provided with a steam hole, a peripheral wall centering on a steam passage upper hole is provided at an upper end surface of the inner cylinder in an inner and outer portion, and the steam passage is provided. A downward facing inner peripheral wall which is fitted on the lower surface of the top plate at a required interval between the double peripheral walls, and a downward outer peripheral wall which is disposed outside the double peripheral walls, is provided. A rice cooker squirt prevention device, wherein a peripheral passage forms a bent passage in the middle of the steam passage, and the steam hole is provided outside the downward facing outer peripheral wall. 2. The rice cooker according to claim 1, wherein the downwardly facing peripheral wall formed on the lower surface of the steam passage top plate is formed to have a length approaching the rice cake pool. 3. A rice drainage hole opened inside the rice cooker on the bottom of the rice bowl, and the lower surface of the rice drainer is closed when the internal pressure of the rice cooker is high, and the pressure drops. The rice cooker according to claim 1 or 2, further comprising a check valve which is opened when the rice cooker is opened. 4. A steam flow control device according to claim 1, wherein a regulating plate having a steam passage lower hole is provided at a steam passage inlet portion of said inner cylinder, and said steam passage lower hole is formed to have a smaller diameter than said steam passage upper hole. 4. The rice squirt prevention device for a rice cooker according to any one of items 1 to 3.