JPS5915645B2 - Kanetsuchiyourikigu - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating cooking utensil used for boiling, cooking rice, etc.

General heating cooking appliances are configured to automatically stop the heating action or switch to warm heating by temperature detection or timer control when cooking is complete, but all of these are gas combustion type, electric heating type, etc. Regardless of the heating type, such as a type or an oil-burning type, the heating capacity per unit time from the start of heating to the completion of cooking is always constant.

However, what is actually required in boiling, cooking, etc. is to maintain the temperature above a certain level for a substantially certain period of time. However, when heating with a constant heating capacity as described above, especially near the completion of cooking, although the temperature reaches a certain level required for the process, it exceeds the level at which a constant temperature can be maintained. It is in an excessive boiling state due to overheating, and the extra 5
Heating is an energy loss because it actively dissipates into the air as water vapor without contributing to the actual boiling or cooking of rice, etc., and also causes boiling bubbles caused by excessive boiling. This has caused the inconvenience that the food being cooked, such as rice, is stirred vigorously and the surface of the rice becomes too soft, resulting in the inconvenience of not being able to prepare delicious boiled food, rice, etc.

In view of these points, the present invention aims to provide a heating cooking utensil that not only saves energy but also can cook delicious boiled foods, rice, etc.

Hereinafter, an embodiment in which the present invention is applied to a gas rice cooker will be described based on illustrative drawings. As shown in FIGS. 1 and 2, this gas rice cooker has a gas combustion mechanism housed in a casing 4. A cylindrical casing B in which a lower heating part A20 and a pot B2 with a lid B1 are fitted and placed on the casing 4.
3, and an upper heated part B which can be heated from below and can be extracted from above. The gas combustion mechanism in the lower heating section A is interposed between the main 25 burner MV, pilot burner PV), a pilot ignition discharge plug P, and a fuel gas supply pipe (heating energy supply system) a to both burners MV and PV. The first stage rotational operation supplies fuel gas to the pilot burner Pv, and the second stage rotational operation at 30°C supplies fuel gas to the main burner MV. At the same time, the cock 2 for adjusting the supply amount) is rotated in the first stage by the first stage rotation operation, the discharge plug P is discharged 35 and the pilot burner PV is ignited, and the pilot burner PV is ignited by the second stage rotation operation. A heating start operation mechanism 1 is provided to cause the cock 2 to rotate in a second stage and ignite the main burner MV. The heating start operating mechanism 1 connects a rotational operation knob 1A located laterally outward of the casing 4 to a rotational operation shaft 1B of the pot 2, and also connects a rotational operation knob 1A located on the outer side of the casing 4 to a rotational operation shaft 1B. A piezoelectric device 1C that generates a discharge voltage for the discharge plug P is connected in an interlocked manner, and the pot 2 is automatically adjusted so that the heating capacity is maximum at the beginning of heating and gradually decreases as time passes. The structure includes a mechanism 3.

As shown in FIG. Kotoku 2 to reduce fuel gas supply amount (heating capacity)
When the motor 7 is rotated in the clockwise direction, which is the closing direction, and the rotary operation shaft 1B is rotated counterclockwise to enable fuel gas supply to the main burner MV in the Kotoku 2, the motor 7 is operated, A switch mechanism is provided which stops the operation of the motor 7 when the rotary operation shaft 1B rotates clockwise due to the operation of the motor 7 and returns to the rotational position where the supply of fuel gas to the main burner M in the cooker 2 is stopped. It is configured as follows.

(The clockwise and counterclockwise directions are directions when the drawing is viewed from the front.) This switch mechanism is connected to the rotary operation shaft 1B.
a switch operating piece 8 that protrudes in the radial direction from the shaft and rotates together with the rotary operating shaft 1B; and a switch operating piece 8 that is interposed in the power supply circuit E for the motor 7 and that connects the operated portion 9A to the switch operating piece 8.
A switch 9 of a normally 0ff type is provided to turn the motor 7 into an ON state and operate the motor 7 by the pressing action of the switch 9.

The operated part 9A of the switch 9 is configured to control the amount of fuel gas supplied (heated) to the main burner M by the motor 7. In order to maintain the switch 9 in the 0N state by the pressing action of the switch operation piece 8, which rotates clockwise together with the rotary operation shaft 1B, until the supply is finally stopped while decreasing the volume (capacity), the switch operation piece is It is formed in an arcuate shape with a pressed surface along the rotation locus of 8.

In addition, in the bottomed casing 4 portion located around the rotary operation knob 1A, the rotary operation shaft 1B is connected to the main burner MV in the pot 2 with the mark 10 attached to the rotary operation knob 1A as a guide. A display section 4A is provided to display the time required for rotation return from the maximum position of the fuel gas supply amount (required heating amount).

Reference numeral 11 in the figure is a release operation piece that can act on the switch mechanism, which stops the rotary operation shaft 1B, which returns to rotation due to the operation of the motor 7, at an arbitrary position, and opens the switch 2 at a constant opening. This is used when heating is performed at a constant heating capacity by maintaining the condition.

Next, to explain the operation of the automatic adjustment operation mechanism 3 in detail, A in FIG. 3 shows the state before the main burner MV and pilot burner PV are ignited, and Through the first-stage rotation operation and the second-stage rotation operation, the pilot burner PV is ignited by being fully rotated counterclockwise and fuel gas is supplied from the cooker 2, and the main burner M is ignited at its maximum heating capacity. It shows the state in which

In this open state, the switch operating piece 8 is pressing against the operated portion 9A of the switch 9, so the switch 9 is in the ON state and the motor 7 rotates. This rotation of the motor 7 causes the rotary operation shaft 1B to rotate clockwise via the gears 5 and 6, and the amount of fuel gas supplied (heating capacity) to the main burner M in the cooker 2 is reduced. The tip thereof presses and slides on the operated portion 9A of the switch 9 while rotating clockwise. And Kotoku 2
At the time when the fuel gas supply to the main burner M is stopped, the tip of the switch operating piece 8 is removed from the operated part 9A of the switch 9, and the switch 9 is in the 0ff state.
The motor 7 stops, and the gas rice cooker enters a warm state where only the pilot burner P is ignited. Therefore, the heating state of the gas rice cooker constructed in this way is shown in FIG. 4.

That is, at the heating start time T, the pilot burner PV and the main burner M heat with a gas flow rate Vl, and as time elapses after the heating start, heating is performed while gradually decreasing the gas flow rate until the heating start time t1. When time t has elapsed since then, at T2, the pilot burner PV heats and insulates with a heat insulating gas flow rate V2. As shown in FIG. 5, the switch 9 rotates the rotary operation knob 1A fully counterclockwise until the fuel gas supply amount (heating capacity) to the main burner MV in the cooker 2 reaches the maximum position. When the switch operation piece 8 comes into contact with the
When rotated clockwise by the motor 7 and returned to the position where fuel gas supply to the main burner MV in the cooker 2 is stopped, it comes into contact with this and swings to the 0ff state, for example, the main burner MV and the pilot It may be constructed by including a seesaw-shaped operated portion 9A as shown in A, which shows the state before the burner P is ignited.

Other configurations and operations are the same as in the previous embodiment. In summary, the heating cooking appliance according to the present invention has a mechanism 3 interposed in the heating start operation mechanism 1 of the heating cooking appliance for automatically adjusting and operating the heating energy supply amount adjusting tool 2 interposed in the heating energy supply system. The device is characterized in that the heating capacity is maximum at the beginning of heating, and the heating capacity is gradually reduced as time passes. Its effects include the following advantages.

In other words, the heating capacity at the beginning of heating is maximized, and the
For cooking rice, etc., heating is carried out rapidly to a certain level or higher, and conversely, the adjustment mechanism gradually reduces the heating capacity over time. It is possible to shorten the cooking time, and by keeping the temperature above a certain level without excessive boiling after it reaches a certain temperature, it is possible to reduce the loss of energy that escapes as water vapor, thereby saving energy. .

Furthermore, by preventing excessive boiling, boiling with boiling bubbles,
To make it possible to calm the intense stirring of rice while cooking, etc., and to cook delicious boiled food or rice without softening the surface of the boiled food too much.

In the examples, a gas combustion type was used, but an electric heating type or an oil combustion type could also be used.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the heating cooking appliance according to the present invention, and FIG. 1 is an overall front view, FIG. 2 is an enlarged partially cutaway front view of the main part, and FIG. 3 is a diagram showing the operation of the main part. FIG. 4 is an enlarged front view showing a diaphragm showing a change in combustion heating capacity, and FIG. 5 is an enlarged front view showing main part operation in another embodiment. 1... Heating start operation mechanism, 2... Heating energy supply amount adjustment tool, 3... Automatic adjustment operation mechanism.

Claims (1)

[Claims] 1 A mechanism 3 that automatically adjusts and operates a heating energy supply amount adjusting device 2 interposed in a heating energy supply system is inserted in the heating start operation mechanism 1 of the heating cooking appliance to adjust the heating capacity at the initial stage of heating start. A heating cooking appliance characterized in that the heating capacity is at a maximum and is configured to gradually reduce the heating capacity as time passes.