JPH10339442A - Gas cooking stove with rice cooking function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the ease of operation by selecting a rice cooking mode when a heating power adjusting element is slid to a rice cooking position by a signal from a position sensor for detecting the action to facilitate the rice cooking operation. SOLUTION: A cooking stove is provided with a position sensor 22 which detects a sliding action when a heating power adjusting element 9 is slid to a 'rice cooking' position. When the heating power adjusting element 9 is slid to the 'rice cooking' position, a signal from the position sensor 22 is inputted into a control means 23. In this case, the control means 23 recognizes that a rice cooking mode is selected as control mode and turns OFF an extinguishing switch 24 to put out a standard burner 3 when a detection temperature of the temperature sensor 3a rises up to a rice completion temperature (e.g. 140 deg.C). Thus, the cooking of rice is accomplished simply by sliding the heating power adjusting element 9 to the 'rice cooking' position without operating a mode selection switch 10 to facilitate the operation thereby facilitating the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas stove with a rice-cooking function capable of cooking rice in addition to ordinary cooking and cooking.

[0002]

2. Description of the Related Art A gas stove with a rice cooking function is provided with a temperature sensor for detecting the temperature of an object to be heated by a burner and control means for controlling the burner, and a rice cooking mode is selected as a control mode by the control means. At times, the burner is extinguished when rice cooking is completed based on a signal from a temperature sensor.

Conventionally, a rice cooker mode is selected by providing a mode selector. In addition, the gas stove is provided with a flow control valve that regulates the amount of gas supplied to the burner, and the burner's power can be adjusted by operating the flow control valve. If it is too long, the wick will remain or burn, and if the heat is too weak, it will take too much time or the cooking will be too sticky, making it impossible to cook good rice. Therefore, as the operation guide display of the thermal power regulator for adjusting the thermal power of the burner by operating the flow rate regulating valve, a display indicating the rice cooking position at which the thermal power suitable for rice cooking is obtained is provided, and the rice cooking mode is selected with the mode selector, Rice is cooked by adjusting the thermal power control to the rice cooking position.

[0004]

In order to cook rice satisfactorily with the above-mentioned conventional example, two operations, a mode selector operation and a heat power setting by a heat power adjuster, are required, which makes the operation troublesome. I have. In particular, if the display of the rice cooking position is provided as a display for the thermal power regulator, it is misunderstood that rice can be cooked simply by operating the thermal power regulator to the rice cooking position, and rice is cooked without selecting the rice cooking mode with the mode selector. Sometimes.
In this case, even if cooking is completed, the burner is not extinguished and the rice is scorched.

[0005] In view of the above, it is an object of the present invention to facilitate the operation for cooking rice and improve the usability.

[0006]

Means for Solving the Problems In order to solve the above problems,
In the present invention, a temperature sensor that detects the temperature of the object to be heated by the burner, and a control unit that controls the burner,
A gas stove with a rice cooking function that extinguishes a burner when rice cooking is completed based on a signal from a temperature sensor when a rice cooking mode is selected as a control mode by a control means,
An operation guide display of a thermal power regulator for adjusting a thermal power of a burner by operating a flow rate regulating valve provided in a gas supply path to a burner to provide a display indicating a rice cooking position at which a thermal power suitable for rice cooking is obtained. The rice cooking mode is selected by a signal from a position sensor that detects when the adjuster is operated to the rice cooking position.

[0007] According to this, when the heating power adjuster is operated to the rice cooking position, the heating power becomes suitable for rice cooking, the rice cooking mode is selected, the burner is extinguished when the rice cooking is completed, and good rice cooking without scorching occurs. Done. in this way,
For cooking rice, it is only necessary to operate the thermal power adjuster, and the usability is improved.

[0008] The heating power suitable for rice cooking is medium heat, and a heating power suitable for rice cooking can be obtained at an intermediate position of the operation range of the thermal power adjuster. The rice cooking mode is selected even when medium heat is set. On the other hand, the heating power suitable for rice cooking can be obtained even at the end of the operation range of the thermal power adjuster. When cooking is performed over medium heat, the rice cooking mode is not selected, which is advantageous.

[0009]

FIG. 1 shows a gas stove having a grill 1, a large burner 2 on the right side and a standard burner 3 on the left side. A temperature sensor 3a for detecting the temperature by contacting the bottom of the pot is provided. On the front panel 4 of the stove, a fire extinguishing button 5 for a burner (not shown) for the grill 1, a fire extinguishing button 6 for the large burner 2, and a heating power regulator 7 for the large burner 2 thereon.
And a fire extinguishing button 8 for the standard burner 3, a heating power adjuster 9 for the standard burner 3 thereon, and a mode selector 10.

[0010] Cooking rice is performed using a standard burner 3. As shown in FIG. 2, the gas supply path for the standard burner 3 includes an electromagnetic safety valve 11 and a main valve 12 in order from the upstream side.
, A flow regulating valve 13, and a temperature regulating solenoid valve 14 with a bypass orifice 14a are interposed. Electromagnetic safety valve 1
1, the main valve 12, and the flow regulating valve 13 are incorporated in a valve casing 15 of the valve unit shown in FIG.
A movable element 16 is provided at the front end of the valve casing 15 and urged forward (to the left in FIG. 3) by a spring 16 a that abuts against the back surface of the point fire button 8. Is inserted into the valve casing 15 to face the valve body 11a of the electromagnetic safety valve 11, and the rod 17
The valve element 12a of the main valve 12 is attached to an intermediate portion of the main valve 12.

The mover 16 is locked at a middle position by a heart cam type push / push mechanism 18 in a return operation from a rear push-off position. When the point fire extinguishing button 8 is pressed, the rod 17 is pushed rearward through the mover 16, the main valve 12 is opened, and the electromagnetic safety valve 1 is opened.
1 is pressed and opened (the state shown in FIG. 3), and at the same time, an ignition switch (not shown) is turned on to ignite the standard burner 3. When the standard burner 3 is ignited, the electromagnetic safety valve 11 is kept open by the electromotive force of the thermocouple 19 (see FIG. 2) facing the standard burner 3. In this state, the push operation of the fire extinguishing button 8 is released, and the mover 16 is returned to the intermediate position locked by the push-push mechanism 18. In this intermediate position, the electromagnetic safety valve 1
Although the pressing of 1 is released, the main valve 12 is maintained in the open state, and the burner 3 is maintained in the ignited state. Fire extinguishing button 8
Is pressed again, the lock of the mover 16 at the intermediate position is released, and the release of the push operation returns the mover 16 to the forward position, closes the main valve 12, and extinguishes the standard burner 3.

The flow regulating valve 13 includes a valve casing 15
And a needle valve rotatably and vertically inserted into an upper end portion of a rising portion 15a extending upward. A cap 20 is mounted on the upper end of the rising portion 15a, and a slanted guide hole 20a is formed in the cap 20, and the pin 13a attached to the flow control valve 13 is
0a. Then, a lever 21 is pivotally mounted on the upper surface of the cap 20 by a shaft 21a, and a pin 13 is attached to the lever 21.
a fork portion 21b sandwiching the a is formed, and the flow control valve 13 is guided by the guide hole 20a while rotating by the rotation of the lever 21 to move up and down, so that the amount of gas supplied to the burner 3 is increased or decreased. I have. The lever 21 is a spring joint 2
A connecting portion 21d extending forward through 1c.
The thermal power adjuster 9 is attached to the front end of the connecting portion 21d. When the thermal power regulator 9 is slid rightward in FIGS. 1 and 2, the flow regulating valve 13 moves downward, the gas amount decreases, the thermal power of the burner 3 decreases, and the thermal power regulator 9 moves to the left. When sliding, the flow control valve 13 moves upward, the amount of gas increases, and the heat of the burner 3 increases, and the heat is arbitrarily adjusted between a high heat (for example, 2300 Kcal / h) and a low heat (for example, 500 Kcal / h). I am trying to get it.

An extended hole portion 20b which is bent in a V-shape from the upper end of the guide hole 20a and extends obliquely downward is formed.
When the thermal power adjuster 9 is slid to the left from the high heat position where the pin 13a engages with the upper end of the guide hole 20a, the pin 13a engages with the extension hole 20b and the flow regulating valve 13 is moved downward. , Medium heat suitable for cooking rice (for example, 1100k
cal / h). As shown in FIGS. 1 and 2, the operation panel of the thermal power adjuster 9 is displayed on the front panel 4 as an operation guide of the thermal power adjuster 9. Is displayed as "cooked rice". Further, a slide guide groove 20c as shown in FIG. 4 for inserting a guide piece 21e extending rearward from the connecting portion 21d is formed in the front wall portion of the cap 20, and the heating power adjuster 9 is inserted into the guide groove 20c. When the thermal power adjuster 9 is lifted at the "strong" position, the spring joint 2 is formed.
The guide piece 21e is disengaged from the step 20d by the tilting of the connecting portion 21d in 1c, so that the heat power adjuster 9 can be slid to the "rice cooking" position.

An extension hole which is bent in a V-shape from the lower end of the guide hole 20a and extends obliquely upward is formed, and when the thermal power adjuster 9 is further slid rightward from the "weak" position. Medium heat may be set, and a "cooking" position may be provided to the right of the "low" position. In this case, “rice cooking” is displayed on the right side of “weak”, and “weak” is displayed on the right side of the slide guide groove 20c.
A step is formed as a boundary between the position and the “rice cooking” position.

Further, the stove is provided with a position sensor 22 for detecting when the thermal power adjuster 9 is slid to the "rice cooking" position. In this embodiment, the position sensor 22 is connected to the pin 13 a by the extension hole 2.
Although the limit switch is mounted on the cap 20 so as to be pressed and turned on when it shifts to 0b, the position is determined by the limit switch mounted so as to be pressed and turned on by the thermal power adjuster 9 and the lever 21. The sensor 22 may be configured.

Signals from the position sensor 22, the mode selector 10, and the temperature sensor 3a are input to control means 23 comprising a microcomputer. The mode selector 10 includes a tempura button 10a, a water heater button 10b, and a cooked button 10c. When these buttons 10a, 10b, 10c are pressed, the control means 23 executes control in a corresponding mode among the tempura mode, the water heater mode, and the boiled mode, and the temperature sensor 3a
Is a temperature suitable for each mode, for example, 180 ° C in the tempura mode, 100 ° C in the water heater mode,
In the cooking mode, the temperature control solenoid valve 1
4 is controlled to open and close. Also, which button 10a, 10
When neither b nor 10c is pressed, control in the overheat prevention mode is executed. When the temperature detected by the temperature sensor 3a rises excessively (for example, 250 ° C.) due to empty cooking, the thermocouple 19 and the electromagnetic safety valve 11 are connected. The normally closed fire extinguishing switch 24 intervening in the connected safety valve circuit is turned off, the electromagnetic safety valve 11 is closed, and the standard burner 3 is extinguished. Even if any of the buttons is pressed, if the temperature continues to rise with the temperature adjusting solenoid valve 14 kept closed while the air conditioner is being cooked, control in the overheat prevention mode is performed.

When the heat power adjuster 9 is slid to the "rice cooking" position, a signal from the position sensor 22 is transmitted to the control means 23.
Is input to In this case, the control unit 23 recognizes that the rice cooking mode has been selected as the control mode, and the temperature sensor 3a
When the detected temperature rises to the rice cooking completion temperature (for example, 140 ° C.), the fire extinguishing switch 24 is turned off and the standard burner 3 is extinguished. In this manner, rice can be cooked simply by sliding the thermal power adjuster 9 to the “rice cooking” position without operating the mode selector 10, thereby facilitating the operation.

By the way, the middle position between the "weak" position and the "strong" position may be set to the "cooking" position. Since the rice cooking mode is selected, an operation for canceling the rice cooking mode is required, and the usability deteriorates. On the other hand, if the position of the end of the operation range beyond the “weak” position or the “strong” position as described above is set as the “rice cooking” position, cooking other than rice cooking at the intermediate position can be performed over medium heat. Is advantageous.

In the above embodiment, the safety valve circuit for connecting the thermocouple 19 to the electromagnetic safety valve 11 is provided. The output of the thermocouple 19 is input to the control means 23, and the output from the thermocouple 19 and the temperature sensor are provided. Control means 2 according to the output from 3a
3 may control the energization of the electromagnetic safety valve 11.

If the control mode is only the rice cooking mode, the temperature sensor 3a is constituted by a bimetal switch that turns off at the rice cooking completion temperature, and the safety valve circuit places the bimetal switch and the thermal power adjuster 9 in the "rice" position. The control means may be configured by intervening in parallel a normally closed switch as a position sensor that is turned off when operated. in this case,
When the heat power adjuster 9 is operated to the “cooking” position, the thermocouple 19 is operated.
Is supplied to the electromagnetic safety valve 11 only through the bimetal switch, and when the rice cooking is completed, when the bimetal switch is turned off, the electromagnetic safety valve 11 is closed and the burner 3 is extinguished.

Although the stove provided with the base valve 12 and the flow control valve 13 has been described above, the present invention can be similarly applied to a stove using a rotary gas cock which also serves as the base valve and the flow control valve. In this case, as shown in FIGS. 5 (A) and 5 (B), the gas cock closeer 25 is formed with a reducing groove 25b continuous with the main gas hole 25a, and a cock knob 26 serving as a thermal power adjuster connected to the closer 25 is provided. When further rotated from the "high" position, the weight reduction groove 25b matches the gas inlet 27 of the gas cock, so that the heating power is reduced from high heat to medium heat suitable for rice cooking. And "cooked rice" at a position beyond the "strong" position
Is provided, and a position sensor similar to that of the above-described embodiment for detecting when the cock knob 25 is rotated to the "rice cooking" position is provided, and the rice cooking mode is selected by a signal from the sensor. .

[0022]

As is apparent from the above description, according to the present invention, good rice can be cooked only by setting the heating power adjuster to the rice cooking position, and the operation for cooking rice is facilitated. Usability is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a gas stove according to an example of the present invention.

FIG. 2 is a circuit diagram showing a gas circuit of a burner and its control system.

FIG. 3 is a sectional view of a valve unit provided in a gas circuit.

FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3;

5A is a cross-sectional view of a gas cock according to another embodiment of the present invention, and FIG.

[Explanation of symbols]

 Reference Signs List 3 burner 3a temperature sensor 9 thermal regulator 13 flow regulating valve 22 position sensor 23 control means 25 picking cock (thermal regulator)

Claims (2)

[Claims] 1. A temperature sensor for detecting a temperature of an object to be heated by a burner, and control means for controlling the burner, wherein when a rice cooking mode is selected as a control mode by the control means, a signal from the temperature sensor is used. This is a gas stove with a rice cooker function that extinguishes the burner when cooking rice is completed, and an operation guide for a thermal power adjuster that adjusts the heat power of the burner by operating a flow control valve interposed in the gas supply path to the burner. In the case where a display indicating a rice cooking position at which a heating power suitable for rice cooking is obtained is provided as a display, a rice cooking mode is selected by a signal from a position sensor that detects this when the heating power adjuster is operated to the rice cooking position. A gas stove with a rice cooking function. 2. The gas stove with a rice cooking function according to claim 1, wherein an end of an operation range of the thermal power adjuster is a rice cooking position.