JPH0534601Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Purpose of invention] (Industrial application field) The present invention relates to a rice cooker with an improved lid.

(Prior art) This type of conventional rice cooker is shown in Fig. 3.
A pot 2, which is a container, is housed in a container body 1, and a lid 3 is provided to open and close the upper opening of the container body 1. This lid 3 is connected to a lower surface member 5 provided inside an outer lid 4.
A fitting receiving part 6 is formed on the fitting receiving part 6, a fitting part 8 for a gasket 7 that tightly contacts the upper end of the pot 2 is provided on the fitting receiving part 6, and a vertical piece 10 is further formed on the edge of the inner lid 9.
is in contact with the fitting portion 8 of the gasket 7, and the inner cover 9 is fixed to the lower surface member 5 with the gasket 7 interposed therebetween by screws 11 or rivets.

(Problems to be Solved by the Invention) In the prior art described above, the lower surface of the inner lid 9 becomes dirty due to broth generated during rice cooking with the lid 3 closed. When wiping off this sticky residue, the sticky residue can be easily wiped off from flat parts such as the inner lid 9, but the sticky residue attached to the screws 11, especially the grooves carved in the head of the screw 11, can be easily wiped off. There was a problem that the sticky substance adhering to the inner lid 9 could not be easily wiped off, and that the screws 11 and the like were exposed to the inner lid 9, resulting in poor appearance.

Furthermore, in addition to the above-mentioned inner cover that is conventionally provided inside the lid, rice cookers are also known that are equipped with a separate inner cover that directly closes the top opening of the pot. There was a problem that slime rose to the top of the former and the inner lid of the former became similarly dirty.

Furthermore, in Japanese Utility Model Application Publication No. 62-204519, a lid gasket that tightly contacts the upper end of the container is clamped below the outer periphery of the outer lid, and a hanging rod is provided protruding from approximately the center of the lower surface member constituting the outer lid. discloses an electric rice cooker that removably supports a separate inner lid that directly closes the top opening of the container via this hanging rod.

However, electric rice cookers with this structure,
The inner cover is supported at the bottom of the inner plate with the hanging rod protruding from the bottom of the inner cover. Since the hanging rod is supported, the hanging rod is exposed on the lower surface of the inner lid, resulting in poor appearance, and it is not possible to easily wipe off the sticky substance attached to the hanging rod. Moreover, since the lid heater, which is a heating element, is provided on the top of the inner plate, the heat radiated from the lid heater to the top opening of the container is blocked by the inner lid, resulting in a decrease in heating efficiency. , it is not possible to cook the entire container evenly and keep it warm.

Therefore, an object of the present invention is to provide a rice cooker that improves the cleanability and appearance of the lid bottom plate provided on the lid, and that can evenly cook rice and keep the entire container warm.

[Structure of the invention] (Means for solving the problem) The present invention includes a container body 21 that accommodates a container 25,
An outer cover 29 that closes the upper opening 28 of the container body 21, and a lower cover plate 30 that is fixed to the lower part of the outer cover 29 and has a flat portion 30A with no unevenness on the lower surface.
, a lid 27 consisting of the outer lid 29 and a lower lid plate 30, and a gasket 39 attached to the lid 27 and tightly attached to the upper end 26 of the container 25. The gasket 39 is provided near the joint portion with the face plate 30, and a fixing portion 46 between the lid bottom plate 30 and the bottom member 33 of the outer lid 29 is provided inside the lid 27, and the lid bottom plate 30 is A heating element 37 is provided on the upper surface of the lid lower plate 30 to heat the lid during heating or when keeping warm.

Further, in the present invention, a relatively non-adhesive coating layer 38 such as a fluorine coating is provided on the surface of the lid lower plate 30 on the container 25 side.

Furthermore, the present invention provides a container 25 of the lid lower plate 30.
A coating layer 38 made of a material with high far-infrared emissivity, such as ceramic, is provided on the side surface.

(Function) The present invention provides a fixing portion 46 between the lid lower plate 30 and the lower member 33 of the outer lid 29 inside the lid 27, and also provides a flat portion 30 with no unevenness on the lower surface of the lid lower plate 30.
By forming A, the cleanability and appearance of the lid bottom plate 30 provided with the lid 27 can be improved. A heating element 37 that heats the lid lower plate 30 during cooking or keeping warm is provided on the upper surface of the lid lower plate 30 fixed to the lower part of the outer lid 29.
7 can be directly radiated to the rice in the container 25.

Furthermore, by providing a relatively non-adhesive coating layer 38 such as a fluorine coat on the surface of the lid bottom plate 30 on the container 25 side, the lid bottom plate 30
You can easily wipe off dirt stuck on the 0.

Furthermore, a coating layer 38 made of a material with high far-infrared emissivity, such as ceramic, provided on the surface of the lid bottom plate 30 on the container 25 side,
Thermal efficiency can be improved when cooking rice or keeping it warm.

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2. Reference numeral 21 denotes a container main body, and this container main body 21 consists of an outer case 23 and an inner case 24 whose upper ends are joined by an upper frame 22, and a pot 25 serving as a container is housed in the inner case 24. A flange is formed at the upper end 26 of this pot 25. Reference numeral 27 denotes a lid that is pivotally mounted via a hinge (not shown) so that the upper opening 28 of the container body 21 can be freely opened and closed.
9, and an inner cover 30 which is a lower cover plate fixed to the lower part of the outer cover 29. And on the inner lid 30,
A flat portion 30A with no unevenness is formed on the lower surface thereof. The outer cover 29 has a lower surface member 33 fixed to the inner end of the outer cover main body 32 having a handle 31 on the upper surface at a spaced interval inside the outer cover main body 32. This lower surface member 33 is curved inwardly and upwardly to form a horizontal portion 34.
A groove-shaped fitting receiving portion 35 is provided on the lower surface of this horizontal portion 34, and a first through hole 36 is provided at an appropriate position on the upper surface of this fitting receiving portion 35.
is installed vertically. Further, the inner lid 30 is made of metal, for example, alumite-treated aluminum,
A heating element 37 such as a cord-shaped heater is provided on the upper surface, and enamel, fluorine coat, etc. are provided on the lower surface.
A coating layer 38 of a relatively non-tacky material such as ceramic is provided. 3
Reference numeral 9 denotes an annular gasket attached to the lid 27, and the gasket 39 is connected to the lower surface member 33 and the inside so that when the lid 27 is closed, the cavity 40 side formed in the lower part of the gasket 9 comes into close contact with the upper end of the pot 25. It is provided near the joint with the lid 30, and a fitting part 41 that fits into the fitting receiving part 35 is integrally molded on the inside upper part, and the fitting part 41 has an open bottom surface. A groove 42 is provided, and a second through hole 43 facing the first through hole 36 is vertically provided on the upper surface of the groove 42. The inner lid 30 is provided with a horizontal flange 44 that comes into contact with the inner lower end of the fitting part 41.
A vertical piece 45 that contacts the upper surface of the groove 42 is provided on the edge of the groove 42, and a vertical piece 45 that faces the first and second through holes 36, 43 is provided on the edge of the groove 42.
The first and second through holes 36, 4 are located at
3. A bending piece 46 serving as a fixed part is bent to pass through the
are integrally formed.

To explain the assembly with this configuration, first, the second through hole 43 is made to face the first through hole 36, and the packing 3 is attached to the fitting receiving portion 35 of the lower surface member 33.
9 is fitted into the fitting portion 41. After that, the vertical piece 45 is brought into contact with the upper surface of the groove 42 of the packing 39, and at the same time, the bent piece 46 is penetrated through the first and second through holes 36, 43, and the bent piece 46 is placed on the upper surface of the lower surface member 33. expose it. and the bent piece 4
6 is bent and caulked on the upper surface of the lower surface member 33, and the inner cover 30 is fixed to the lower surface member 33 with a gasket 39 interposed therebetween. Thereafter, the outer lid main body 32 and the lower surface member 33 are joined together.

Next, the operation of the above configuration will be explained. Pot 25
When an appropriate amount of rice and water are put into the rice cooker and an operation switch (not shown) is operated, the rice cooking heater (not shown) and the heating element 37 generate heat to cook the rice, and sticky rice adheres to the inner lid 30. When the rice cooking is completed, the rice is kept warm by the heat-retaining heater (not shown) and the heating element 37. At this time, the heat from the heating element 37 instantly heats the coating layer 38, so that far infrared rays are emitted, allowing efficient heating during cooking and keeping warm.

According to this embodiment, the packing 39
forming first and second through holes 36 and 43 in the fitting 41 and the fitting receiving portion 35 of the lower surface member 33, respectively;
By inserting and locking the bent piece 46 into the first and second through holes 36 and 43, the inner cover 30 can be attached to the outer cover 29 with the gasket 39 interposed.
The slime can be wiped off from every corner of the inner lid 30 using a cloth or the like. Furthermore, when the lid 27 is opened, the inner lid 30 forms a flat portion 30A without any screws, so the condensed water that has adhered to the inner lid 30 flows smoothly toward the hinge, allowing the condensed water to be quickly collected. The appearance can also be improved.

Furthermore, by providing a relatively non-adhesive coating layer 38 such as enamel or fluorine coating on the lower surface of the inner lid 30, dirt stuck to the inner lid 30 can be easily wiped off, thereby improving hygiene. Furthermore, by making the coating layer 38 a material such as ceramic which has a high emissivity of far infrared rays, the radiant heat from the heating element 37 is efficiently radiated to the rice during cooking or keeping the rice warm, thereby improving thermal efficiency. can.

Moreover, in the embodiment, since there is no separate inner lid that directly closes the upper opening of the pot 25, the number of parts can be reduced, and the radiant heat can be radiated directly to the food, so the capacity of the heating element 37 can be reduced. It can be made smaller and save energy, and
By improving heating efficiency, it is possible to cook the entire container evenly and keep it warm.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made to the material of the lower lid plate, such as processing a material that has been previously coated with fluorine or the like into a component.

[Effects of the invention] The present invention consists of a container body that houses a container, an outer lid that closes the upper opening of the container main body, and a flat part that is fixed to the lower part of the outer lid and has no unevenness on the lower surface. a lid consisting of the outer lid and the lid lower plate; a gasket attached to the lid and tightly attached to the upper end of the container; The gasket is provided near the lid, and a fixing portion between the lid bottom plate and the bottom member of the outer lid is provided inside the lid, and a heating element for heating the lid bottom plate during cooking or keeping warm is provided under the lid. This is installed on the top of the face plate, and improves the cleanability and appearance of the bottom plate on the lid.
It is possible to provide a rice cooker that can evenly cook the entire container and keep it warm.

In addition, the present invention provides a relatively non-adhesive coating layer such as a fluorine coating on the container side surface of the lid bottom plate, making it possible to easily wipe away dirt stuck to the lid bottom plate. can.

Further, in the present invention, by providing a coating layer made of a material with a high far-infrared emissivity such as ceramic on the container-side surface of the lower lid plate, the thermal efficiency during cooking or keeping rice warm can be improved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a sectional view of another part of FIG. 1, and FIG. 3 is a sectional view of the conventional example. 21... Vessel body, 25... Pot (container), 26...
...Top end, 27...Lid, 28...Top opening, 29
...Outer lid, 30...Inner lid (bottom lid plate), 30A...
... flat part, 33 ... bottom member, 37 ... heating element,
38...Coating layer, 39...Patzkin, 4
6...Bent piece (fixed part).

Claims (1)

[Claims for Utility Model Registration] (1) A container body that houses a container, an outer lid that closes the upper opening of the container body, and a flat part that is fixed to the lower part of the outer lid and has no unevenness on the lower surface. A lid is provided with a lid that is formed of a lower lid plate, the outer lid and the lid lower plate, and a gasket that is attached to the lid and tightly contacts the upper end of the container, and the lid is made up of a lower lid plate and a lid lower plate. The gasket is provided near the connecting portion, a fixing portion between the lid bottom plate and the bottom member of the outer lid is provided inside the lid, and a heating element that heats the lid bottom plate during cooking or keeping warm is attached to the lid. A rice cooker characterized by being installed on the top surface of the bottom plate. (2) The rice cooker according to claim 1, characterized in that a relatively non-adhesive coating layer such as a fluorine coating is provided on the container side surface of the lid bottom plate. (3) The rice cooker according to claim 1, characterized in that a coating layer comprising a material having a high far-infrared emissivity such as ceramic is provided on the container-side surface of the lower lid plate.