JPH0157574B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rice cooker that cooks rice by applying pressure inside an inner container.

Conventional structure and its problems Generally, in rice cookers that cook rice by applying pressure to the inner container, foaming inside the inner container is more intense than in rice cookers that cook rice without applying pressure. The water inside tends to boil over, and it is difficult to prevent boiling over by simply providing an inner lid like in the conventional double-lid type.

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned conventional drawbacks, and an object of the present invention is to provide a rice cooker that is less likely to boil over.

Structure of the Invention In order to achieve the above object, the present invention provides a rice cooker which comprises an inner container and an outer lid to form a sealed container and which cooks rice under high pressure. The bottom surface of the inner lid is located below the upper end opening of the inner container, the outer diameter of the inner lid is made slightly smaller than the inner diameter of the upper end of the inner container, and a small gap is created between the upper end of the inner lid and the back surface of the outer lid. It was formed,
This is to prevent foaming inside the inner container.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a metal outer lid, 2 is a metal inner container, 3 is interposed between the outer lid 1 and the inner container 2, and
It is a rubber seal packing that has a sealing effect. Reference numeral 4 designates a cylindrical inner cover with an upwardly opened bottom, which is attached to the back surface of the outer cover 1 by means of a holding shaft 6 and a holding fitting 7, and reference numeral 5 indicates drain holes provided at several locations on the bottom surface of the inner cover 4. . Reference numeral 8 represents a pressure adjustment weight for adjusting the internal pressure within the inner container 2, and reference numeral 9 represents an ejection nozzle for ejecting steam within the inner container 2 to adjust the internal pressure within the inner container 2.

In the above configuration, when rice is cooked in the inner container 2, the upper layer of the inner container 2 becomes intensely bubbling, some of the bubbles come into contact with the inner lid 4, and are crushed; Bubbles try to flow into the lid 4 from the upper gap via the gap A between the inner container 2 and the inner lid 4, but because the gap A between the inner container 2 and the inner lid 4 is small, the bubbles are crushed. Further, the bubbles that have exceeded the limit try to flow into the inner cover 4 from between the outer cover 1 and the inner cover 2, but since the gap between the outer cover 1 and the inner cover 2 is also small, the bubbles are crushed and do not flow into the inner cover 4. The bubble-like substance disappears,
Only steam is ejected from the ejection nozzle installed in the outer lid 1, and there is no boiling over of moisture, etc., and a good pressure state is maintained in the inner container 2, resulting in good rice cooking. The moisture accumulated in the inner lid 2 returns to the inner container 2 through the drain hole 5 and does not remain in the inner lid 4.

Effects of the Invention As is clear from the above explanation, according to the present invention, even if pressure is applied inside the inner container to cook rice, water inside the inner container does not blow out, and a good pressure state is maintained. and can cook rice well.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an electric rice cooker showing an embodiment of the present invention, and FIG. 2 is a perspective view of the main parts thereof. 1...outer lid, 2...inner container, 4...inner lid.

Claims (1)

[Claims] 1. In a rice cooker where an inner container and an outer lid constitute a sealed container and which cooks rice under high pressure, a cylindrical inner lid with a bottom is attached to the lower surface of the outer lid, and the bottom of this inner lid is connected to the top opening of the inner container. The outer diameter of the inner lid is slightly smaller than the inner diameter of the upper end of the inner container.
A rice cooker with a small gap formed between the top of the inner lid and the back of the outer lid.