JP2560448Y2 - 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 cooker for cooking rice by heating rice and water stored in a pot.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional rice cooker, wherein 1 is a rice cooker main body, and an annular support frame 2 is provided at the upper end of the rice cooker main body 1 as a support portion. In the rice cooker main body 1, a bottomed cylindrical inner frame 3 is provided. The inner frame 3 has a flange 4 integrally on an upper end edge thereof, and the flange 4 is an upper surface on the inner peripheral side of the support frame 2. The lower end of the inner frame 3 is locked to the rice cooker main body 1 via a locking piece 5.

A rice cooker 6 as a heat source and a temperature sensor 7 for controlling the cooker 6 are provided at the bottom of the inner frame 3. A cooking pot 8 is housed in the inner frame 3 so as to be freely inserted and removed. Then, a required amount of washed rice and water is stored in the pot 8, and the rice and water are heated by the rice cooking heater 6 to cook rice. The rice cooker 6 has a pot 8
In the space between the bottom of the inner frame 3 and the bottom of the pan 8
Radiant heat generated by the rice cooker 6
Is a radiation heating system in which the pan 8 is heated.

The outer periphery of the support frame 2 is exposed on the outer surface side of the rice cooker main body 1, and an operation section 9 is provided on a part of the outer periphery of the support frame 2. Reference numeral 10 denotes a lid pivotally attached to the upper end of the rice cooker main body 1, 11 denotes an inner lid attached to the lower surface of the lid 10, and opens and closes an opening at the upper end of the pot 8, and 12 denotes a lid. This is a handle provided on the upper surface of the lid 10.

The inner frame 3 is formed of a metal such as aluminum, and the support frame 2 supporting the inner frame 3 is formed of a synthetic resin. The inner frame 3 has a high temperature due to the provision of the rice cooker 6
Becomes In particular, the rice cooker 6 is connected to the bottom of the pot 8 and the bottom of the inner frame 3.
Radiation placed in the space between the surface and the pot 8
In the radiant heating configuration, the radiant heat causes the inner frame 3 to reach a high temperature.
And this heat is conducted to the upper flange 4 of the inner frame 3,
Further, the pan 8 is placed on the flange 4 of the inner frame 3 and
Heat is actively conducted, so that the flange 4 of the inner frame 3
This is the high temperature state. Thus the supporting frame 2 is required to have sufficient heat resistance in direct contact with the flange 4 of the inner frame 3, and thus the support frame 2 is formed by using a synthetic resin having excellent heat resistance, such as nylon 6 .

[0006]

However, synthetic resins having excellent heat resistance, such as nylon 6, are expensive and their color tone is limited, so that a desired color tone cannot be selected. For this reason, in the related art in which the support frame 2 is formed of such a synthetic resin, the material cost is high and expensive, and the color tone of the support frame 2 is limited.
The color tone of the lid 11 and the lid 11 are also limited in view of the balance, and it is difficult to make the rice cooker main body 1 and the lid 11 into desired designs of various colors.

[0007] The present invention has been made in view of such a point. The purpose of the present invention is to reduce the material cost and make it possible to construct the rice cooker inexpensively and to select a design of a desired color tone. To provide equipment.

[0008]

According to the present invention, in order to achieve the above object, a metal inner frame provided with a heat source is supported by a support frame provided on a rice cooker main body, and the inner frame is provided in the inner frame. In the thing which stores a cooking pot and cooks rice ,
It is placed on the upper part of the inner frame, the pot is stored inside the inner frame, and a spacer formed of a synthetic resin having excellent heat resistance is provided on the support frame, and the space between the inner frame and the support frame is provided through the spacer. A gap is provided to support the inner frame, and the spacer is
And the bottom of the pan and the bottom of the inner frame
And a space between the pan and the bottom of the pot.
It is those that were in so that providing a heat source to.

[0009]

[Function] The heat of the inner frame is conducted to the spacer which is in direct contact with the inner frame. However, since this spacer is formed of a synthetic resin having excellent heat resistance, it sufficiently withstands the heat to soften or deform. The heat conduction from the inner frame to the support frame is reliably suppressed by the spacer, and therefore, the support frame can be formed of a synthetic resin having low heat resistance. Since synthetic resins with low heat resistance are inexpensive, material costs can be reduced, and in synthetic resins with low heat resistance, the color tone can be selected from a wide range of colors. It is possible to configure a rice cooker of a desired design by selecting various colors in consideration of the balance with the colors of the main body and the lid.
And synthetic resin spacers with excellent heat resistance are supported
Because it is formed in an arc shape that follows the circumference of the frame,
The mounting of the sir to the support frame is stable and the mounting
Is more reliable.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. Note that the same reference numerals are given to portions corresponding to the conventional configuration, and description thereof will be omitted.

The support frame 2 is formed of an inexpensive synthetic resin such as polypropylene having low heat resistance. Spacers 15... Made of synthetic resin such as nylon 6 having excellent heat resistance are provided at, for example, three places on the upper surface of the inner peripheral edge of the support frame 2.

The spacers 15 are formed in a circular arc shape along the circumferential direction of the inner periphery of the support frame 2 and are fitted in recesses 16 formed on the upper surface of the inner peripheral edge of the support frame 2.
The height of the spacers 15 is slightly larger than the depth of the recesses 16. Therefore, the upper surfaces of the spacers 15 project slightly upward from the upper surface of the inner peripheral edge of the support frame 2. . And these spacers 1
The flanges 4 of the inner frame 3 made of metal such as aluminum are locked on the upper surfaces of the spacers 5.
As a result, a certain gap is secured between the inner frame 3 and the support frame 2, and direct contact between the two is avoided.

The spacers 15 are fixed to the support frame 2 by screws 17 which are screwed from the upper surface of a substantially middle portion thereof to the support frame 2. Protrusions 20, 20 are integrally formed near both ends of the lower surface of the spacers 15, and these protrusions 20, 20 are fitted into concave grooves 21, 21 formed on the bottom surface of the concave portion 16, whereby the spacers 15 are formed. Are prevented from shifting with respect to the horizontal direction. Further, engaging claws 23, 23 having an L-shaped cross section are integrally formed near both ends of the lower surface of the spacer 15.
The spacers 3 and 23 are engaged with the lower surface of the inner peripheral edge of the support frame 2, and the engagement prevents the spacer 15 from rising upward at both ends.

In such a configuration, the heat of the inner frame 3 is conducted to the spacers 15 which are in direct contact with the inner frame 3, but since these spacers 15 are formed of a synthetic resin having excellent heat resistance, It does not soften or deform sufficiently against the heat. Although the support frame 2 is formed of a synthetic resin having low heat resistance, the inner frame 3 does not directly contact the support frame 2, so that heat conduction from the inner frame 3 to the support frame 2 is suppressed, and Support frame 2 has low heat resistance
It can withstand even synthetic resin.

The synthetic resin having low heat resistance is inexpensive. Therefore, in the rice cooker according to the present invention in which the support frame 2 is formed of such a synthetic resin, it is necessary to reduce the cost of the frame material and to make it cheap. Can be. In the case of a synthetic resin having low heat resistance, the color tone can be selected in a wide variety of ranges, so that the limitation on the color tone of the support frame 2 is greatly relaxed. Various colors can be selected in consideration of the balance with the color of the body 11. Also, made of synthetic resin with excellent heat resistance
The spacers 15 are formed in an arc shape along the peripheral shape of the support frame 2.
Since they are formed, the support frame of these spacers 15...
2 The installation is stable, and the reliability of the installation is
Increase.

In general, rice cookers are available for cooking 1.0 liter and for cooking 1.5 liter. Depending on the specifications, the inner diameter of the support frame 2, the outer diameter of the inner frame 3, and the outer diameter of the pot 8 are different. In contrast, each size is smaller for cooking 1.0 liter, and larger for cooking 1.5 liter.

Here, in the spacer 15 of the present embodiment, as shown in FIG.
Is the dimension corresponding to the inner diameter of the support frame 2 for cooking 1.0 liter, and the radius of curvature R2 inside thereof is set to the dimension corresponding to the outer diameter of the inner frame 3 for cooking 1.5 liter. I have.

With such a spacer 15, this spacer 15 can be used in common for both sizes of rice cookers. That is, since the outer radius R1 of the spacer 15 is formed so as to correspond to the size of the small supporting frame 2 with reference to the small supporting frame 2, it is needless to say that the mounting to the small supporting frame 2 is possible. In other words, it is possible to attach to the support frame 2 having a large size. Since the inner radius R2 of the spacer 15 is formed so as to correspond to the outer diameter of the inner frame 3 having a large size, the spacer 15 is attached to the support frame 2 having a large size. However, even when attached to the support frame 2 of a small size,
The inner frame 3 having a larger size or the inner frame 3 having a smaller size can be arranged on the inner peripheral side thereof, and thus can be commonly used for rice cookers having different sizes.

[0019]

As described above, according to the present invention, only the spacers may be formed of a synthetic resin having excellent heat resistance. The advantage that a mild synthetic resin can be used, so that an inexpensive rice cooker can be constructed by reducing material costs, and a rice cooker of a desired design can be constructed by adjusting the color tone of the support frame to the desired color tone. There is.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a rice cooker according to an embodiment of the present invention.

FIG. 2 is a plan view of a spacer used in the rice cooker.

FIG. 3 is a sectional view taken along the line AA in FIG. 2;

FIG. 4 is a sectional view taken along the line BB in FIG. 2;

FIG. 5 is a plan view of a support frame used for the rice cooker.

FIG. 6 is an overall sectional view of the rice cooker.

FIG. 7 is a sectional view of a conventional rice cooker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rice cooker main body 2 ... Support frame 3 ... Inner frame 6 ... Rice cooker (heat source) 8 ... Pot 15 ... Spacer.

Claims (1)

(57) [Scope of request for utility model registration] The method according to claim 1] metal inner frame with a heat source, in which is supported by the support frame provided in the cooker body, the cooker accommodating the pot for cooking rice in the inner frame, the upper portion of the pot On the top of the inner frame and place the pot inside the inner frame
Housed, a spacer formed of a synthetic resin excellent in heat resistance to said support frame is provided, the inner frame supporting a gap is provided between the inner frame and the support frame via the spacer, the spacer
Is circular along the circumference of the support frame, and
A space is provided between the bottom of the inner frame and the pot.
A rice cooker characterized by providing a heat source at a distance from the bottom surface .