JPS6020966Y2 - pressure cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pressure cooker typified by a pressure cooker.

Generally, pressure cookers are often set to have a regular gauge pressure of 1.0 and about 9/d, and the temperature inside the pot at this time is maintained at a high temperature of about 120°C.

It is well known that cooking time can be shortened by high-temperature cooking, and this means that the time it takes to maintain high temperatures has a large effect on the quality of the food, and maintaining high temperatures due to residual heat after heating is also a big factor. It is.

Conventionally, pressure cookers with a pot placed on a heating element have a relatively long preheating time, and if left to naturally heat after heating, dishes that require a short preheating time (for example, vegetable dishes) may overheat. There was a drawback that.

The present invention has a simple structure and eliminates the above-mentioned drawbacks of the conventional art.One embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is an outer frame, 2 is a heating element that heats the pot 3, 4 is a protective frame to which the heating element 2 is attached, 5 is a lid that covers the opening of the pot 3, and a gasket 7 is fitted into the inner periphery of the lid 5. , is brought into contact with the upper edge of the pot 3.

6 is a lid knob provided on the lid 5, and in the case of the pressure cooker of this example, it also has the function of a bundle when rotating the lid 5.

The seal 7 also has a sealing effect that increases the pressure inside the pot 3.

8 is a weight type pressure regulating valve that keeps the pressure inside the pot 3 constant, and 9 is a melting type safety valve using a eutectic alloy.

Reference numeral 10 denotes an outer frame handle attached to both sides of the upper part of the outer frame 1, and a recess 10a is formed in the mounting surface.

Reference numeral 11 denotes a pot handle attached to both sides of the upper part of the pot 3, and is provided with a convex portion 11a that corresponds to and engages with the concave portion 10a of the outer frame handle 10, and a concave portion 11b is formed at the tip of the convex portion 11a.

Reference numeral 12 denotes a sensor equipped with a temperature sensing element for sensing the temperature of the pot 3, and is normally pressed against the bottom of the pot by a support 13 having spring properties.

14 is a safety switch that opens and closes in conjunction with the support 13 of the sensor 12.

15 is a heating control circuit, the details of which will be omitted.

In the pressure cooker of this embodiment, during normal use, the safety switch 14 is set to A (closed) by placing the pot 3 on the heating element 2 as shown in FIG. It is done.

At this time, the pot handle 11 and the outer frame handle 10 engage with each other on the outside of the outer frame 1, as shown in FIG. 3, to prevent the pot 3 from rotating.

In the case of dishes that require residual heat for a long time after heating by the heating element 2 is completed, that state is maintained.

After heating is complete, if the dish requires a short residual heat, use the second
As shown in FIG. 4, by placing the pot handle 11 on the outer frame handle 10, a space is created between the pot bottom and the heating element 2,
Shorten the high temperature maintenance time due to residual heat.

At the same time, the safety switch 14 becomes B (open), and in this state, even if the heating control circuit 15 is erroneously set, the heating element 2 is not energized.

As is clear from the above examples, the present invention has a simple configuration of changing the engagement state of the outer frame handle and the pot handle, and can shorten the high temperature maintenance due to residual heat after heating is completed by cutting off conductive heat from the heating element. At the same time, it is possible to provide a pressure cooker that improves operability by preventing the pot from rotating and improves safety by using a safety switch.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a pressure cooker in normal use, showing an embodiment of the present invention, Fig. 2 is a sectional view of the pressure cooker showing the state when measuring the residual heat reduction after heating, and Fig. 3 is the same as in Fig. 1. FIG. 4 is a side view of the main part of the handle, FIG. 4 is a side view of the main part of the handle in FIG. 2, and FIG. 5 is a diagram showing the relationship between the maintenance switch and the heating control circuit (details omitted). 2... Heating element, 3... Pot, 10...
...outer frame handle, 11...pan handle, lla...
...Convex part, llb...Concave part, 14...
・Security switch.

Claims (1)

[Scope of utility model registration request] A heating element installed inside the outer frame through a protective frame, a pot placed on the heating element, and a sensor equipped with a temperature sensing element that detects the temperature of the pot are engaged with each other outside the outer frame. In a pressure cooker equipped with a pot handle and an outer frame handle that prevent rotation,
A convex portion 11a having a concave portion 11b is provided between the outer frame handle 10 and the pot handle 11 so that the heating element 2 connected to the safety switch 14 is not energized even when the pot 3 is placed on one of the handles 10 and 11. A pressure cooker characterized in that a pressure cooker is formed on one side.