JP3588443B2 - Rice cooker lid structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lid structure of a rice cooker, and more particularly to a lid structure suitable for attaching auxiliary parts.
[0002]
[Prior art]
Generally, in a rice cooker, an inner lid heated by a heater is attached to an inner surface of a lid, and is used for keeping warm rice and removing the rice. A steam discharge path is formed in the lid to discharge the steam generated inside the rice cooker to the outside, where Oneva, a viscous vapor containing rice components, spills out of the lid. A component (auxiliary component) is mounted to prevent the occurrence of such a situation (see Japanese Patent Application Laid-Open Nos. 8-38350, 10-201620, and 10-216011).
[0003]
[Problems to be solved by the invention]
However, since the auxiliary component is mounted on the upper surface of the inner lid to form a space for preventing Oneva from spilling out, a gap is formed between the auxiliary component and the inner lid due to an increase in the internal pressure of the rice cooker. Force acts in the direction of Although packing is arranged and sealed between the auxiliary parts and the inner lid, as the elasticity of the packing is lost due to deterioration over time, steam may enter the lid and damage the heater etc. Comes out.
[0004]
Further, when the auxiliary parts are mounted on the upper surface of the inner lid, not only a space for disposing the packing but also a space for mounting the inner lid such as a rivet is required. This makes it difficult to properly transfer heat from the heater to the inner lid.
[0005]
In view of the above, the present invention properly prevents the steam from leaking from the mounting portion of the auxiliary component into the lid according to the rise of the internal pressure, secures the contact area of the inner lid with the heat sink, and transfers heat from the heater. It is an object of the present invention to provide a rice cooker lid structure capable of appropriately performing rice cooking.
[0006]
[Means for Solving the Problems]
The present invention provides, as a means for solving the above-mentioned problem, a method in which the inner surface of a lid that closes an upper opening of a rice cooker main body is formed by a oneva having a viscosity containing a rice component in steam formed on the lid. In a lid structure of a rice cooker configured with an inner lid mounted with an auxiliary component for preventing discharge to the outside through a discharge port,
Forming a recess on the inner surface of the inner lid,
Said auxiliary parts,
A closing plate formed with a steam outlet communicating with the inside of the rice cooker main body, and closing the recess through packing; and
Oneva is attached to the inner surface of the recess when the steam flowing into the body of the rice cooker flows through the steam outlet of the rice cooker body through the steam outlet of the closing plate. It is composed of a partition wall that separates the separation space.
[0007]
With this configuration, rice cooking is started, and even if the pressure in the space formed by the auxiliary component and the concave portion of the inner lid increases, the internal pressure of the rice cooker acts on the auxiliary member. No gap is generated between the portion and the opening edge of the recess. Even if a gap is formed and steam leaks, it will not enter the lid or the inside of the recess or the rice cooker.
[0008]
According to another aspect of the present invention, there is provided, as another means for solving the above-mentioned problem, an inner surface of a lid closing an upper opening of a rice cooker body, the one-side having a viscosity containing a rice component in steam being covered with the lid. In the lid structure of a rice cooker configured with an inner lid mounted with auxiliary parts for preventing discharge to the outside through a steam discharge port formed in
Forming an opening in the inner lid,
Said auxiliary parts,
A closing plate formed with a steam outlet communicating with the inside of the rice cooker main body and closing the opening via packing;
An exterior body that protrudes inside the opening and forms a space that communicates a vapor discharge port of the lid with a vapor discharge port of the lid; and
When the steam flowing into the rice cooker main body flows into the rice cooker main body through the steam discharge port of the closing plate and projects through the steam discharge port of the closing plate, the oneva adheres to the inner surface of the concave portion and separates when the steam flows into the inflow space. It is composed of a partition wall that separates the separation space.
[0009]
With this configuration, when rice cooking is started and an internal pressure acts on the auxiliary component, the outer edge of the auxiliary component presses the packing against the inner surface side edge of the opening to enhance the sealing property, so that steam enters the lid. Never.
[0010]
It is preferable that the auxiliary component is sandwiched and mounted between the inner lids formed of two plate-like bodies, since the number of components can be reduced and a configuration excellent in appearance can be obtained.
[0011]
It is preferable that the auxiliary component is detachably attached to the inner lid, because the cleaning capability of the auxiliary component can be improved.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings.
[0013]
(1st Embodiment)
FIG. 1 shows a rice cooker 1 according to the first embodiment. The rice cooker 1 includes a rice cooker main body 3 in which the inner pot 2 is housed so as to be able to be taken out, and a lid 4 rotatably attached to the rice cooker main body 3.
[0014]
The rice cooker main body 3 includes a protective frame 6 for accommodating the inner pot 2 in a bottomed cylindrical body 5, and an induction heating coil 7 and an inner pot temperature sensor 8 between the body 5 and the protective frame 6. Etc. are well-known configurations.
[0015]
The lid 4 includes an upper plate 9, a lower plate 10, and an inner lid 11, and is attached to the rice cooker main body 3 so as to be openable and closable.
[0016]
A first steam discharge port 12 is formed in the upper plate 9, and a cylindrical rib 13 extends downward from the inner peripheral side thereof. A first packing 14 is provided at the tip of the rib 13.
[0017]
The lower plate 10 is formed with a housing recess 15 that is directed upward at a substantially central portion, and has an opening 16 through which the first packing 14 is inserted. A radiator plate 18 having a lid heater 17 on the upper surface is attached to the lower surface of the lower plate 10 so that the inner lid 11 can be heated.
[0018]
A second packing 19 is provided on the outer peripheral portion of the inner lid 11 to press the upper end edge of the inner pot 2 to seal the inside. A recess 20 is formed at a substantially central portion of the inner lid 11 so as to extend upward along the housing recess 15 of the lower plate 10. A step 21 is formed at the opening edge of the recess 20, and a communication port 22 is formed in the ceiling surface. The first packing 14 provided on the rib 13 of the upper plate 9 is pressed against the periphery of the communication port 22 to prevent steam from leaking.
[0019]
An exhaust duct member 23, which is an auxiliary component according to the present invention, is attached to the recess 20. The exhaust duct member 23 has a structure in which a substantially semicircular partition wall 25 is formed on the upper surface of a substantially elliptical closing plate 24 as shown in FIGS. 1 and 2A and 2B. The exhaust duct member 23 is fixed by a rivet 27 (see FIG. 3) with a third packing 26 interposed between the outer edge portion and the step portion 21 of the concave portion 20. In this fixed state, the partition wall 25 divides the inside of the recess 20 into an inflow space 29 and a separation space 30 that communicate with each other through a communication passage 28 (see FIG. 2B). The inflow space 29 is a small space located on the right side in FIG. 2B, and the steam in the rice cooker 1 flows in through the second steam discharge port 31 formed in the closing plate 24. The separation space 30 is a large space located on the left side in FIG. 2B, and contains rice components contained in the steam when the steam flowing into the inflow space 29 turns through the communication passage 28. Oneva is attached to the inner surface of the recess 20 and separated.
[0020]
Next, an operation of discharging steam generated in the rice cooker 1 having the above-described configuration will be described.
At the time of cooking rice, the internal pressure of the inner pot 2 increases, and steam is generated. The generated steam flows into the inflow space 29 of the exhaust duct member 23 through the second steam discharge port 31 of the inner lid 11, is changed direction in the inflow space 29, and heads toward the communication passage 28. Since the opening area of the communication passage 28 is small, the flow velocity of the steam increases, and as shown in FIG. 2B, the steam spirals substantially spirally along the recess 20 and the wall surface of the partition wall 25. At this time, the oneva having a large specific gravity adheres to the recess 20 and the wall surface of the partition wall 25. The steam from which the oneva has been removed is exhausted to the outside of the lid 4 from the first steam outlet 12 via the communication port 22, the first packing 14 and the rib 13.
[0021]
During the steam discharging operation, an upward force acts on the closing plate 24 of the exhaust duct member 23 which is an auxiliary component due to an increase in the internal pressure of the inner pan 2. Since this force acts in the direction of compressing the third packing 26, steam does not enter the separation space 30 from between the stepped portion 21 and the closing plate 24. Accordingly, the swirl flow of steam is not hindered, and the oneva is reliably removed.
[0022]
By the way, the Oneva removed in the separation space 30 can be easily washed by removing the inner lid 11 from the lid 4. That is, since the concave portion 20 and the exhaust duct member 23 that constitute the separation space 30 are both formed in the inner lid 11, if the inner lid 11 is removed from the lid 4, it is possible to wash the whole.
[0023]
(2nd Embodiment)
FIG. 7 shows a rice cooker 1 according to the second embodiment. The rice cooker 1 is different from the rice cooker 1 according to the first embodiment only in the structure of the inner lid 11 and the exhaust duct member 23, and the other portions have substantially the same configuration (see the following description). In the description, the same reference numerals are given to the same components as those of the first embodiment, and the description is omitted.)
[0024]
An opening 32 is formed in the inner lid 11 instead of the recess 20.
The exterior body 33 of the exhaust duct member 23 is formed so as to cover the partition wall 25 except for the outer edge on the upper surface of the closing plate 24. Then, by partitioning the internal space formed by the exterior body 33 and the closing plate 24 with the partition wall 25, as in the first embodiment, the internal space is divided into the inflow space 29 and the separation space 30 communicating with each other by the communication passage 28. I have. Further, on the upper surface of the exterior body 33, a cylindrical portion 34 reaching the first steam exhaust port 12 of the upper plate 9 is formed so that steam can be discharged from the separation space 30 to the outside. Further, a through hole 34 is formed in the upper surface of the exterior body 33, and can be opened and closed by screwing a cap 35 as shown in FIG.
[0025]
According to this configuration, the internal pressure of the inner pan 2 rises upon the start of rice cooking, and the force acting on the closing plate 24 causes the outer edge of the closing plate 24 to move through the third packing 26 to the lower surface side edge of the opening 32. Acts as a force to press against the part. Therefore, the steam generated in the inner pan 2 does not enter the lid 4 from between the closing plate 24 of the exhaust duct member 23 and the lower side edge of the opening 32.
[0026]
In each of the above embodiments, the exhaust duct member 23 is fixed to the inner lid 11 using the rivet 27. However, the exhaust duct member 23 may be fixed by the configuration shown in FIGS.
[0027]
In FIG. 4, the plate-like members 11a and 11b are integrated by a rivet 27 while the exhaust duct member 23 is sandwiched between the two plate-like members 11a and 11b (even if they are integrated by crimping, bonding or the like). Good.) Further, the plate-like bodies 11a and 11b are integrated by crimping or the like, or, instead of crimping or the like, the outer edges of the plate-like bodies 11a and 11b are bent into a substantially U-shape as shown in FIG. May be engaged with the ring 36 and integrated by screwing. In this case, the third packing 26 may be integrated with the plate members 11a and 11b.
[0028]
In FIG. 6, a hook 37 is provided on the exhaust duct member 23, and the claw portion 37 a is engaged with and disengaged from the locking hole 11 a of the inner lid 11. The hook 37 is rotatable about a support shaft 37b, and is urged by a spring 38 wound around the support shaft 37b so that the claw portion 37a is locked in the locking hole 11a of the inner lid 11. An end of the hook 37 (on the side opposite to the claw portion 37a) is an operation portion 37c protruding from the inner lid 11 to the inner surface side, and the claw portion 37a is moved from the engagement hole 11a through the operation portion 37c. The exhaust duct member 23 can be detached from the inner lid 11 by being dropped.
[0029]
According to this configuration, not only can the inner lid 11 be removed from the lid 4, but also the exhaust duct member 23 can be removed from the inner lid 11, which facilitates cleaning and is convenient.
[0030]
Further, in each of the above embodiments, the example of the exhaust duct member 23 is shown as an auxiliary component. However, even in the case of a pressure adjusting mechanism employed in a pressure type rice cooker such as a pressure adjusting ball or a solenoid, the exhaust duct member 23 is Similarly, the configuration according to the present invention can be adopted.
[0031]
【The invention's effect】
As is apparent from the above description, according to the present invention, the auxiliary component is mounted on the inner surface edge of the concave portion or opening formed in the inner lid via the packing, so that the packing increases as the internal pressure of the rice cooker increases. Also, the pressing force of the auxiliary component pressed against the inner lid via the inner lid increases. For this reason, the sealing performance in the mounting portion of the auxiliary component is enhanced, and it is possible to prevent the steam from leaking into the lid and prevent the heater and the like from being damaged.
[0032]
Further, since the auxiliary component is sandwiched and mounted between the inner lids formed of two plate-shaped members, the number of components can be reduced and the device can be manufactured at low cost.
[0033]
In addition, since the auxiliary parts are detachably provided, it is possible to improve the cleaning property.
[Brief description of the drawings]
FIG. 1 is a sectional view of a rice cooker according to a first embodiment.
FIG. 2 is a perspective view (A) of the exhaust duct member shown in FIG. 1 and a plan view (B) thereof.
FIG. 3 is a cross-sectional view illustrating an example of a mounting structure of the exhaust duct member illustrated in FIG.
FIG. 4 is a cross-sectional view showing another example of the mounting structure of the exhaust duct member shown in FIG.
5 is a cross-sectional view showing another example of the mounting structure of the exhaust duct member shown in FIG.
6 is a sectional view showing another example of the mounting structure of the exhaust duct member shown in FIG.
FIG. 7 is a sectional view showing a rice cooker according to a second embodiment.
8 is a perspective view (A) of the exhaust duct member shown in FIG. 7 and a partial plan view (B) thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rice cooker 2 ... Inner pan 3 ... Rice cooker main body 4 ... Lid body 9 ... Upper plate 10 ... Lower plate 11 ... Inner lid 12 ... 1st steam discharge port 13 ... Rib 14 ... 1st packing 15 ... Housing recess 16 ... Insertion port 17 lid heater 19 second packing 20 recess 22 communication port 23 exhaust duct member 24 closing plate 25 partition wall 27 rivet 28 communication path 29 inflow space 30 separation space 31 opening 32 ... exterior body 36 ... ring 37 ... hook 38 ... spring

Claims (3)

The inner surface of the lid closing the upper opening of the rice cooker body is prevented from having the viscous Oneva containing the rice component in the steam discharged to the outside through the steam outlet formed in the lid. In the lid structure of a rice cooker composed of an inner lid with auxiliary parts attached,
Forming a recess on the inner surface of the inner lid,
Said auxiliary parts,
A closing plate formed with a steam outlet communicating with the inside of the rice cooker main body, and closing the recess through packing; and
Oneva is attached to the inner surface of the recess when the steam flowing into the body of the rice cooker flows through the steam outlet of the rice cooker body through the steam outlet of the closing plate. A lid structure for a rice cooker, characterized by comprising a partition wall for partitioning into a separated space. The inner surface of the lid closing the upper opening of the rice cooker body is prevented from having the viscous Oneva containing the rice component in the steam discharged to the outside through the steam outlet formed in the lid. In the lid structure of a rice cooker composed of an inner lid with auxiliary parts attached,
Forming an opening in the inner lid,
Said auxiliary parts,
A closing plate formed with a steam outlet communicating with the inside of the rice cooker main body and closing the opening via packing;
An exterior body that protrudes inside the opening and forms a space that communicates a vapor discharge port of the lid with a vapor discharge port of the lid; and
When the steam flowing into the rice cooker main body flows into the rice cooker main body through the steam discharge port of the closing plate and projects through the steam discharge port of the closing plate, the oneva adheres to the inner surface of the concave portion and separates when the steam flows into the inflow space. A lid structure for a rice cooker, characterized by comprising a partition wall for partitioning into a separated space. 3. The rice cooker lid structure according to claim 1, wherein the auxiliary part is detachably attached to the inner lid.

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