JPH0423464Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to an electric heating container such as an electric rice cooker or an electric pot.

<Prior art> Conventionally, in electric heating containers such as electric rice cookers and electric pots, an inner container is provided inside an outer case, the inner pot is housed in the inner container so as to be able to be heated, and the upper part of the outer case is heated. A lid unit is provided to close the lid. Generally, in such an electrically heated container, a grip for lifting the electrically heated container is provided on the upper side of the lid unit or near the shoulder of the outer case.

<Problem to be solved by the invention> However, in the electric heating container in which the gripping part is provided on the upper side of the lid unit, the gripping part is shaped like a mountain from the top surface of the lid unit so that the central part of the gripping part can be grasped. Since the lid unit protrudes from the top, the height and weight of the lid unit increases accordingly, which poses a problem in that it is not possible to reduce the size and weight of the electric heating container.

In addition, in the case of the electric heating container in which the gripping portion is provided near the shoulder of the outer case, the gripping portion protrudes to the side of the outer case, making it impossible to reduce the outer circumference of the electric heating container. It was not possible to reduce the size and weight. Moreover, since the outer case is usually made of metal and the grip part is made of resin with heat insulation properties, this type of electric heating container requires a mounting member to attach the grip part to the outer case. Ta. Therefore, there was a problem that the number of parts increased and the cost increased.

This invention was made in view of the above-mentioned problems, and aims to provide an electric heating container which can be made smaller and lighter, and which is also inexpensive.

<Means for Solving the Problems> In order to solve the above problems, the electric heating container of this invention is provided with an inner container inside an outer case, an inner pot is housed in the inner container so as to be able to be heated, and the above-mentioned outer case is heated. In an electric heating container in which the upper part of the case is closed with a lid unit, at least the entire shoulder part of the outer case is made of synthetic resin, and the shoulder part is provided with a switch operation part and an operation display part in the front part. In addition, a pair of gripping recesses are formed at opposing positions on the sides to allow the outer case to be lifted.

<Function> In the electric heating container configured as described above, a gripping recess that can lift the outer case is formed on the side of the shoulder of the outer case, so that the gripping recess can be attached to the upper side of the lid unit or the side of the outer case. Since the electric heating container does not protrude, the height of the electric heating container can be reduced and the outer circumference of the electric heating container can be reduced accordingly.

In addition, since the grip recess is integrally formed with the shoulder part whose entire circumference is made of synthetic resin, there is no need for a fixing member to attach the conventional grip to the outer case, which reduces the number of parts. It can be prevented.

Furthermore, the grip recess can be formed simultaneously with the shoulder.

<Example> Hereinafter, an example will be described in detail based on the accompanying drawings showing an example.

FIG. 1 is a perspective view showing an electric rice cooker as an electric heating container according to this invention, and FIG. 2 is a plan view thereof. In these figures, the electric rice cooker includes a side member 2 formed of a thin metal plate, and a bottom member 3 of synthetic resin formed below the side member 2.
and a substantially rectangular parallelepiped-shaped outer case 1 consisting of a shoulder portion 4 formed on the upper side of the side member 2, and a lid unit that is covered on the upper surface of the outer case 1 so as to be openable and closable and is removable from the outer case 1. It is mainly composed of 7.

The entire circumference of the shoulder portion 4 of the outer case 1 is made of synthetic resin, and the front portion of the shoulder portion 4 is provided with an operation switch 20 as a switch operation portion for manually controlling rice cooking conditions, and a heating state. A recess 40 is provided for installing a liquid crystal display section 21 as an operation display section for displaying. A plurality of window holes 20a are provided in this recess 40, and the operation switch 20 is inserted through these window holes 40a. Further, the side portion of the shoulder portion 4 adjacent to the recess 40 is formed to have approximately the same width as the front portion, and a pair of grips that can lift the outer case 1 are provided at opposing positions on this side portion. A recess 10 is formed.

The grip recess 10 has a width into which a plurality of fingertips can be inserted, and a depth into which a first or second joint of the fingertips can be inserted. Further, the upper surface of the grip recess 10 is inclined upward from the entrance side 11 to the inner deep part 12, and
1 is formed in the shape of a flange that somewhat protrudes outward. Furthermore, even when the gripping recess 10 is gripped with the contents fully accommodated, it is formed so that it can be held with good stability.

3 and 4 are longitudinal sectional views showing the internal structure of the electric rice cooker. A more detailed explanation will be given based on these figures.

The outer case 1 has a cylindrical inner container 5 inside.
An inner pot 6 for cooking rice is removably housed inside the inner container 5. Further, a side heater 50 for heating the inner pot 6 from the side is provided on the outer periphery of the side of the inner container 5, and a heat insulating material 51 is provided outside the side heater 50 to prevent heat radiation. It is set up. moreover,
A center sensor 52 is attached to the penetration part formed in the center of the bottom of the inner container 5, and a hot plate 53 is provided between the bottom of the inner pot 6 and the inner container 5, so that the heat A bottom heater 54 that directly heats the inner pot 6 is embedded in the plate 53 so as to surround the center sensor 52 .

In the lid unit 7, a locking mechanism 70 that can be engaged with the outer case 1 is arranged above the recess 40 of the shoulder 4, and at a position opposite to the locking mechanism 70, the outer case 1 A hinge mechanism 71 that can be freely connected to is provided. Further, a steam exhaust port 72 is provided in the center of the lid unit 7, and a one-touch gasket 73 is attached below the steam exhaust port 72. Furthermore, an inner lid 9 that covers the inner pot 6 is provided on the lower surface of the lid unit 7.

The inner lid 9 is entirely made of a material with high thermal conductivity, for example, a metal such as aluminum,
A one-touch pin 75 containing a built-in pressure regulator 74 is fixed to the center of the upper surface of the inner lid 9 by a fixing member such as a screw. The inner lid 9 is detachably attached to the one-touch gasket 73 of the lid unit 7. In addition, the inner lid 9
The peripheral edge 9a is the upper surface of the shoulder 4 and is suspended near the mouth edge 5a of the inner container 5. Note that the space between the lid unit 7 and the inner lid 9 is sealed by a gasket 76 attached to a predetermined position on the bottom surface of the lid unit 7 to prevent steam from leaking outside from sources other than the pressure regulator 74. ing.

An annular heating element 8 for heating the inner lid 9 is provided on the upper surface of the shoulder 4, and a peripheral edge 9a of the inner lid 9 is attached to a metal outer layer 81 that covers the heating element 8. The inner lid 9 is indirectly heated by contacting with the inner lid 9. Further, directly below the shoulder portion 4 and between the outer case 1 and the inner container 5, a box body 23 is provided for housing electrical components such as a power supply board 22 as a unit.

The inner pot 6 is made of metal with high thermal conductivity,
The mouth edge 60 projects higher than the upper surface of the shoulder 4. When the inner pot 6 is covered with the inner lid 9, the annular gasket 9b attached to the predetermined position of the inner pot 9 is brought into contact with the rim 60 of the inner pot 6, and the rim of the inner pot 6 is closed. This is to prevent steam from escaping between the portion 60 and the inner lid 9.

The heating element 8 is covered with a metal cylindrical body 80 with good heat conduction, and this cylindrical body 80 is
It is protected by being wrapped in a metal outer layer 81.
The outer layer 81 has its center separated from the shoulder 4 in order to minimize the influence of heat on the grip recess 10, and only both ends of the outer layer 81 are placed on the upper surface of the shoulder 4. It's embedded. Furthermore, a shoulder ring 82 made of a synthetic resin having heat insulating properties is disposed on the inner peripheral side of the shoulder portion 4.
is the side of the outer layer body 81 that is close to the inner pot 6 (inner peripheral side)
The outer layer body 81 is sandwiched between the shoulder portion 4 and the outer layer body 81 . The upper surfaces of the cylindrical body 80 and the outer layer body 81 are each formed flat in order to enhance the heat transfer effect to the peripheral edge 9a of the inner lid 9.

With the above configuration, since the grip recess 10 is formed in the shoulder 4 of the outer case 1, the grip does not protrude to the upper side of the lid unit or to the side of the outer case as in the conventional case. The height of the electric rice cooker can be reduced, or the outer circumference of the electric rice cooker can be reduced. Therefore, it is possible to reduce the size of the electric rice cooker, and at the same time, it is possible to reduce the weight of the electric rice cooker.

Furthermore, since the grip recess 10 is integrally formed with the shoulder portion 4 whose entire circumference is made of synthetic resin,
Compared to the conventional case in which the outer case and the gripping part are formed separately, there is no need for parts for attaching the gripping part to the outer case, and the number of parts can be reduced.

Further, since the gripping recess 10 is provided on the side portion having approximately the same width as the front portion of the shoulder portion 4, when molding the gripping recess 10, the liquid crystal display portion 2
1 and a recess 4 for installing the operation switch 20
This can be done simultaneously with the molding of 0. Therefore, compared to the case where the recess 40 and the gripping recess 10 are molded separately, the molding process can be significantly simplified and manufacturing costs can be reduced. Furthermore, it is possible to speed up the manufacturing process.

In addition, since the grip recess 10 is provided on the outer case 1 side, the outer case 1 can be lifted and moved even when the lid unit 7 is removed from the outer case 1. Therefore, compared to, for example, a lid unit with a grip, there is no need to cover or engage the lid unit with the outer case each time the electric rice cooker is moved, making handling easier. It's very convenient.

Then, the side of the outer layer body 81 that is close to the inner pot 6 is
The outer layer body 81 housing the heating element 8 is not exposed near the mouth edge 60 of the inner pot 6 because it is covered with a shoulder ring 82 made of synthetic resin, and when the inner pot 6 is taken out from the inner container 5. In addition, it is possible to prevent fingertips and the like from coming into contact with the outer layer body 81 and getting burned.

In addition, electrical components such as the power supply board 22 are placed in the box 23.
Since the box body 23 is provided between the outer case 1 and the inner container 5 and is directly below the shoulder portion 4 that operates the operation switch 20 when housed in the case, the box body 23 is provided near the bottom of the outer case. This eliminates the need for storage space for electrical components, allowing the height of the outer case to be reduced by that much, thereby further promoting miniaturization of the electric rice cooker.

In the above embodiments, an electric rice cooker has been described, but this invention is not limited to the above embodiments, and can also be implemented in, for example, electric pots and other electric heating containers.

Furthermore, the present invention can also be applied to an electrically heated container that is provided with a lid heater for heating the inner lid 9, a heat sink, etc. on the lid unit 7 side without providing the heating element 8 on the upper surface of the shoulder portion 4 of the outer case 1. That is, the lid unit 7 is attached to the outer case 1.
It may also be carried out in an electrically heated container that cannot be removed from the container.

In the outer case 1, not only the entire circumference of the shoulder portion 4 is made of synthetic resin, but also the side member 2 is formed from the shoulder portion 4.
It may be formed integrally with synthetic resin.

In addition, various design changes can be made without changing the gist of the invention.

<Effects of the invention> As described above, since the electric heating container according to the invention has the grip recess formed in the shoulder of the outer case, the electric heating container can be made smaller and lighter due to the recess in the shoulder. can be achieved. In addition, since the above-mentioned grip recess is integrally formed on the shoulder of the synthetic resin, there is no need for parts for attaching the conventional grip to the outer case, which reduces the number of parts and suppresses increases in cost. I can do it.

Moreover, by molding the gripping recesses at the same time as molding the shoulders necessary for providing the switch operation part and the operation display part, the manufacturing process of the electrically heated container can be simplified and the manufacturing cost can be further reduced. It has the unique effect of being able to reduce

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an electric rice cooker which is an embodiment of the electric heating container according to this invention;
The figure is a plan view thereof, FIG. 3 is a cross-sectional view taken along the line -- in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line -- in FIG. 1... Outer case, 4... Shoulder, 5... Inner container,
6... Inner pot, 7... Lid unit, 10... Grip recess, 20... Operation switch as a switch operation section, 21... Liquid crystal display section as an operation display section.

Claims (1)

[Scope of utility model registration request] An electric heating container in which an inner container is provided inside an outer case, an inner pot is housed in the inner container in a heatable manner, and the upper part of the outer case is closed with a lid unit,
At least the entire shoulder part of the outer case is made of synthetic resin, and the shoulder part has a switch operation part and an operation display part on the front part, and lifts the outer case to the opposite position on the side part. An electrically heated container, characterized in that it forms a pair of gripping recesses.