JPS6314605B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric rice cooker in which a cylindrical inner pot with a bottom is placed inside a square cylindrical outer pot and the inner pot is heated by an annular electric heater. The purpose is to cook food uniformly and in a short time without causing any problems.

In general, an electric rice cooker, such as a jar rice cooker, has a cylindrical frame, a cylindrical outer pot with a bottom attached to the frame, and a cylindrical pot with a bottom that can be inserted into and removed from the outer pot. An electric heater is provided in the space formed between the outer bottom wall of the inner pot and the inner bottom wall of the outer pot when the inner pot is inserted.
This electric rice cooker cooks rice by heating the outer bottom wall and outer wall of the inner pot using radiant heat from an electric heater, and it is well known that the entire rice in the inner pot can be cooked evenly. However, in recent years, the number of so-called kitchen appliances has increased, and the usable space in the kitchen has become narrower, so there has been a need to make effective use of the space and to match it with the kitchen fixtures. That is, not only kitchen furniture but also household furniture, wagons, etc. are all square-shaped, so in order to achieve overall harmony, it is desirable that electrical appliances be square-shaped as well. Based on this purpose, there is a method that heats the inner pot through the space between the frame, the outer pot, and the inner pot using square and annular electric heaters. As shown by the dotted line in Figure 5, the rice located at 1000 ml was cooked unevenly and lacked deliciousness.

The present invention has been made in view of the above drawbacks, and will be described below with reference to the drawings. 1 is a pot body consisting of a frame, an outer pot, an inner pot, etc., which will be described later; 2 is a rectangular cylindrical frame made by bending an oblong steel plate into a frame shape and fitting the end faces together; and 3 is a frame provided within the frame. Square tubular outer pot, 4
is a cylindrical inner pot with a bottom that can be inserted into and removed from the outer pot, and as shown in FIGS. 3 and 4, the upper side wall is shaped like a rectangular tube and the side wall is narrowed from relatively below toward the bottom wall. The bottom wall is formed into a circular shape by forming large curved surfaces 5, 5, 5, 5 through processing. 6 is a small annular space formed between the side walls when the inner pot 4 is housed in the outer pot 3; 7 is a heating space formed between the bottom walls when the inner pot 4 is housed in the outer pot 3; A space 8 is an annular electric heater provided exposed at the inner bottom of the outer pot 3, which is positioned within the heating space, and its terminal portions 9, 9 are disposed on one plane part of the outer pot 3. ing.
10 is a heat insulating material interposed between the frame 2 and the outer pot 3; 11 is a square lid whose one side is pivoted to the pot body 1 and the other side is freely latched; 12 is the frame 2;
and a frame-shaped frame cover into which the periphery of the opening of the outer pot 3 is fitted and fixed, and 13 is an operation panel provided on one side wall of the frame 2.

In the above-described configuration, when an appropriate amount of rice and water are stored in the inner pot 4 and inserted into the outer pot 3 and electricity is supplied to the electric heater 8, the radiant heat of the electric heater is transferred to the inner pot via the heating space 7. The bottom wall of the inner pot 4 is heated, and the annular space 6 of each side wall is also heated.
Cover the bottom and side walls with radiant heat. At this time, since the bottom wall of the inner pot 4 and the electric heater 8 are circular in shape, the bottom wall of the inner pot is of course heated evenly, and the corner side of the inner pot 4 is heated by radiant heat. The heated air smoothly heats the inside of the annular space 6 along the curved surface, eliminating uneven cooking. Therefore, as shown in Figure 5, the top layer of the rice has the same height all over.

As described above, the present invention includes a prismatic cylindrical frame, a prismatic cylindrical outer pot, and a bottomed cylindrical inner pot which is housed in the outer pot and has an upper side wall shaped like a prismatic tube and a bottom wall shaped like a circle. and,
a slight annular space formed between the respective side walls when the inner pot is housed in the outer pot; and a heating space communicating with the annular space and formed between the bottom walls of the outer pot and the inner pot;
It consists of an annular electric heater installed exposed in the heating space, so when serving rice, the inner pot rotates so that the corner of the inner pot comes into contact with the corner of the outer pot. It is easy to use without having to do anything.
In order to heat the circular bottom wall of the inner pot, the necessary part (upper side wall) is adapted to the side wall of the outer pot using a particularly versatile annular electric heater. And the bottom part can be heated efficiently. That is, by making the bottom wall of the inner pot circular, the radiant heat from the electric heater is effectively guided to the annular space, promoting the flow of hot air, and making the flat and corner parts of the inner pot uniformly conductive heat for a short time. It can be cooked.

In addition, by making the bottom wall circular, there is no problem with the bottom wall being squeezed more than necessary, resulting in a thinner wall and lower strength, and by making the pot square, the rice can be served at the corner.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of the electric rice cooker of the present invention, Fig. 2 is a plan sectional view of the pot body, Fig. 3 is a perspective view showing the shape of the inner pot and how it is inserted into the outer pot, and Fig. 4 is a perspective view of the electric rice cooker of the present invention. The bottom view of the inner pot, FIG. 5, is an explanatory view showing the cooking state. 1... Pot body, 2... Frame, 3... Outer pot,
4... Inner pot, 6... Annular space, 7... Heating space,
8...Electric heater.

Claims (1)

[Claims] 1. A prismatic cylindrical frame, a prismatic outer pot, a bottomed cylindrical inner pot that is housed inside the outer pot and has a prismatic upper side wall and a circular bottom wall, and the inner pot as described above. A small annular space formed between the respective side walls when stored in the outer pot, a heating space communicating with the annular space and formed between the bottom walls of the outer pot and the inner pot, and a heating space provided exposed to the heating space. An electric rice cooker consisting of an annular electric heater.