JPH10185201A - Timer for heating/cooking range - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set a desired operating time whenever a timer is started. SOLUTION: When any one of increasing or decreasing operation key 19 or 20 is operated, a timer setting section increases or decreases the operating time of a timer temporarily during use thereof to altering the set time. When any one of increasing or decreasing operation key 19 or 20 is operated after operating both keys 19, 20 simultaneously and then the both keys 19, 20 are operated simultaneously again, timer setting section increases or decreases the operating time of timer temporarily during use thereof to alter the set time and to set an altered operating time as a new operating time in place of a preset operating time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timer for a cooking device for automatically stopping the operation of a heating means when a set operation time has elapsed.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. Hei 3-222920 discloses that a timer starts to operate when an ignition of a grill burner is detected. There is disclosed a timer device of a cooking device for stopping combustion and stopping combustion.

The operation time of this timer is fixed at 8 minutes in advance in consideration of the cooking time of a normal grill (eg, fish dishes). However, since the cooking time varies depending on the type of the object to be cooked, the preference of the user, and the like, there is a case where it is desired to shorten or extend the operation time of the timer from 8 minutes. Therefore, this timer device is provided with increase and decrease keys for temporarily changing the operation time of the timer. By operating these keys while the timer is operating, the operation time of 8 minutes is increased. Alternatively, the operating time can be temporarily arbitrarily changed by decreasing the operating time. But,
When the operation time after the change elapses and the timer ends the operation and then starts the operation of the timer again, the operation time is always set to 8 minutes fixed and set in advance.

[0004]

However, when the contents of cooking frequently performed by the user are determined, the operation time of the timer is changed to the contents of cooking frequently performed instead of the predetermined time fixed and set in advance. There is a case where it is desired that the desired operating time is newly fixed and set so that the desired operating time is always set when the operation of the timer is started.

However, in the above-mentioned device, a new desired operation time cannot be newly fixed and set in place of the predetermined operation time of 8 minutes, and 8 minutes is always set at the start of operation of the timer. Therefore, every time the user uses the timer, the user must operate a key to change the operation time to a desired operation time, which is inconvenient.

The present invention has been made in view of the above-mentioned inconveniences, and has as its object to provide a timer device which can set an operation time always set at the start of operation of a timer to a desired time.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a timer for stopping the operation of a heating means when a predetermined fixed operation time has elapsed, and a timer for stopping the operation of the heating means. A time display unit for displaying the remaining time of the operation time, a setting unit for changing and setting the operation time of the timer, and changing the display time of the time display unit accordingly, and for operating the setting unit. A timer device for a cooking device having an operation unit, wherein the setting unit operates the operation unit to temporarily change and set an operation time of the timer during use of the timer. Also, a new operation time is fixedly set instead of the predetermined operation time.

In the present invention, the operation time of the timer is fixed at a predetermined time in advance, and the predetermined time is set when the timer starts operating. When the predetermined operation time has elapsed, the timer stops operating and the operation of the heating means is stopped. The time display section displays the remaining time of the operation time of the timer, and the display time decreases as the time elapses.

When the timer is in use, the operating section is operated to increase or decrease the operation time of the predetermined time of the timer by the setting section to temporarily change and set, and accordingly, the display time of the time display section is also changed. It is changed, and the operation time of the predetermined time of the timer is shortened or extended. In this case, the timer ends the operation when the changed operation time has elapsed, but when the timer is next used, the operation time of the predetermined time is set again. On the other hand, when the operating unit is operated and the setting unit fixes the new operating time instead of the predetermined operating time, the new operating time is always set when the timer is used thereafter. Then, the timer starts operating.

Therefore, according to the present invention, the operation time, which is always set at the start of the operation of the timer, can be fixedly set to a desired time. Therefore, once the operation time is fixedly set to a desired time, it is convenient that there is no need to change the operation time to the desired time every time the timer is used.

Next, in the timer device for a cooking device according to the present invention, there is provided one operation unit for operating the setting unit.
By operating the operation unit in a predetermined method, the operation unit temporarily changes and sets the operation time of the timer during use of the timer, while operating the operation unit in a method different from the predetermined method. It is preferable that the operation unit is configured to fix and set a new operation time instead of the operation time of the predetermined time.

According to the present invention, by changing the operation method of one operation section, the setting section temporarily changes and sets the operation time of the timer while the timer is in use, and the operation time of the predetermined time of the timer is changed. Instead of fixedly setting the new operation time, the setting is switched. Therefore, only one operation unit is required to be provided in the cooking device, so that space efficiency is good. Current cooking devices such as gas tables and built-in stoves have an operation unit for temporarily changing and setting the operation time of the timer and an operation unit for fixing and setting the new operation time. Since it is often difficult to provide them separately in terms of space, the present invention is preferable in such a case.

Further, in the present invention, the operating section comprises an operating key for increasing and an operating key for decreasing, and by operating only one of the operating keys for increasing or decreasing, the setting section is configured to be operated by the operating section. While the operation time of the timer is temporarily increased or decreased while the timer is in use to change and set, while simultaneously operating both the increase and decrease operation keys, the increase or decrease operation key is used. By operating either one of the above, and then simultaneously operating the increase and decrease operation keys, the setting unit changes and sets the operation time of the timer by increasing or decreasing respectively while the timer is in use. In addition, it is preferable that the operating time after the change is newly fixed and set instead of the operating time of the predetermined time.

According to the above configuration, a new desired operating time is fixedly set instead of the predetermined operating time of the timer, and the new desired operating time is always set when the timer is used. Only in such a case, both the increase and decrease operation keys are operated, then one of the operation keys is operated to change to the desired operation time, and then both keys are operated. On the other hand, when the operation time is temporarily shortened or extended while the timer is in use, simply operating only one of the increase or decrease operation keys changes the operation time by increasing or decreasing respectively. It is easy to change the operation time of the timer during cooking.

In the present invention, it is preferable that the setting section has an upper limit in the range of the operation time that can be changed and set. Accordingly, it is possible to prevent the heating cooker from being overheated due to the operation time of the timer being carelessly changed and set to a long time.

[0016]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a gas circuit diagram of a heating cooker provided with a timer device according to one embodiment of the present invention, FIG. 2 is a functional block diagram for explaining control contents of the heating cooker, and FIG. FIG. 4 is a flow chart showing the operation of the above embodiment.

In FIG. 1, a cooking device 1 includes a burner 2 serving as a heating means, an igniter 3 for performing spark discharge for ignition, and a thermocouple 4 for detecting electromotive force by detecting combustion heat. A fuel supply pipe 5 for supplying gas fuel to the burner 2 is provided. The fuel supply pipe 5 is provided with a valve mechanism 6 integrally formed for shutting off fuel gas and adjusting the gas amount. The valve mechanism 6 is the burner 2
Fuel control valve 7, main valve 8, electromagnetic safety valve 9
Consists of The degree of opening of the fuel control valve 7 is changed by operating a gas amount control lever (not shown), and the amount of fuel supplied to the burner 2 is adjusted. The main valve 8 is alternately switched between an open state and a closed state in response to a push operation of a point fire extinguishing button (not shown). The electromagnetic safety valve 9 is opened / closed in connection with the opening / closing operation of the main valve 8, is maintained in a closed state when the main valve 8 is in a closed state, and is a fire extinguishing when the main valve 8 is changed from a closed state to an open state. If the ignition push operation of the button is continued as it is, the open state is maintained. If the ignition push operation is released (stopped) and the main valve 8 is maintained in the open state, a separately provided coil is provided. The open state is maintained only when a current equal to or more than a certain level is supplied from the thermocouple 4 to the closed state, and when the current value is small, the state is closed and the gas supply is stopped. In addition, the valve mechanism 6 is provided with an ignition switch 11 that closes the contact only while the ignition push operation of the point fire button is performed when the main valve 8 is changed from the closed state to the open state. Further, a signal switch 12 for closing a contact when the main valve 8 is in an open state is provided.

In the cooking device 1 having the above configuration, the burner 2 is controlled by a burner control section 13 provided in the cooking device 1. The burner control unit 13 is mainly composed of a microcomputer. In FIG. 2, the burner control unit 13 causes the igniter 3 to perform spark discharge while the ignition switch 11 closes the contact by pressing the point fire extinguishing button, and starts burning the burner 2. While the burner 2 is burning, the coil of the electromagnetic safety valve 9 is energized by the output from the thermocouple 4 to attract the valve body, and the electromagnetic safety valve 9 is kept open. If the burner 2 is misfired due to boiling over and the output of the thermocouple 4 drops, the current supplied to the electromagnetic safety valve 9 decreases and the valve element cannot be adsorbed. Then, the supply of the fuel gas to the burner 2 is stopped.

The cooking device 1 ensures safety against overheating by limiting the heating time, and is provided with a timer device 14 for that purpose. The timer device 14 includes a timer 15 and a timer setting unit 17 included in the burner control unit 13, an operation unit 18 including an increase operation key 19 and a decrease operation key 20, and a time display unit 16.

The timer 15 is in the ignition detection state of the burner 2 when the ignition push operation of the fire extinguishing button is performed and the burner 2 is ignited and the output from the thermocouple 4 becomes a predetermined value or more. Start operation. The operation time of the timer 15 is fixed at 8 minutes in advance in this embodiment, and is set in advance.
When the operating time of 8 minutes has elapsed, the electromagnetic safety valve 9 is automatically closed, the supply of fuel gas to the burner 2 is stopped, and the combustion of the burner 2 is stopped.

The time display section 16 displays the remaining time of the operation time of the timer 15 with two digits in Arabic numerals using seven segments. While the timer 15 is operating, the remaining operating time is displayed in minutes, and when it becomes less than 30 seconds, it is displayed in seconds. For example, the timer 15 is set to a predetermined 8
When the operation is started with the minute operation time set, “8” indicating the remaining 8 minutes of the operation time is lit on the time display section 16. Thereafter, as the time elapses, the display time is reduced and displayed in the unit of “7”, “6”,..., “1” in minutes, and when the remaining operation time becomes 30 seconds or less, “30” is displayed. , "29", ..., "2", "1",
It is illuminated and displayed in “0”, decreasing in seconds. Then, when the set operation time has elapsed, the display time of the time display section 16 is lit and displayed as “0”.

The operation of the timer 15 of the present embodiment is as follows.
The operation is started after the ignition of the burner 2 is detected. If the ignition fails, for example, the timer 15 does not operate, and the operation time is not displayed on the time display unit 16.

The timer setting section 17 changes the operation method of the operation section 18 to temporarily change and set the operation time of the timer 15 while the timer is in use, and the timer 15 is fixed and set in advance. Instead of the predetermined 8-minute operation time, a new desired operation time is fixedly set. In each case,
Any time in minutes can be set as the operation time within a range of 15 minutes or less. When the operation time is changed and set by the timer setting unit 17, the display time of the time display unit 16 is changed accordingly.

The method of setting the operation time of the timer according to the present embodiment will be further described with reference to FIG. First, when the increase or decrease operation keys 19 and 20 of the operation unit 18 are individually pressed, the operation time increases or decreases by one minute each time the push operation is performed, and is temporarily set. Accordingly, the display time of the time display section 16 is increased or decreased by one minute, and is lighted and displayed.

For example, in FIG. 3A, when the ignition of the burner 2 is detected and the timer 15 starts operating, a predetermined fixed operating time of 8 minutes is set.
At the same time, “8” indicating the remaining 8 minutes of the operation time is lit on the time display section 16. At this time, if only the increase operation key 19 is pressed once, the operation time is temporarily changed to 9 minutes and set as shown in FIG. 3B, and the display time is set to “9” indicating 9 minutes. change. Further, if only the increasing operation key 19 is pressed, the operating time and the display time are advanced by one minute each time the pressing operation is performed.
You can set up to 5 minutes. Conversely, when only the decrease operation key 20 is pressed, the display time is reduced by one minute for each push operation.

On the other hand, increase and decrease operation keys 19, 2
When both 0s are simultaneously pressed for 2 seconds or more, the display time of the time display section 16 blinks. Subsequently, when only one of the increase and decrease operation keys 19 and 20 is pressed, the display time is changed by increasing or decreasing by one minute each time the push operation is performed. Then, after pressing one of the operation keys 19 and 20 to change the display time to a desired operation time, if both the operation keys 19 and 20 are pressed simultaneously, the display time returns from the blinking display to the lit display, The display time after the change is temporarily set as the remaining operation time during use of the timer, and the display time after the change is fixed as a new operation time instead of the predetermined 8-minute operation time. Is set.

For example, in FIG. 3C, the timer 15 starts operating with a preset operation time of 8 minutes,
The display time of the time display section 16 is displayed as "8". At this time, if the increase and decrease operation keys 19 and 20 are simultaneously pressed for 2 seconds or more, the display time “8” changes to a blinking display as shown in FIG. Next, decrease operation key 2
When only 0 is pressed three times, the number decreases in order of “7”, “6”, and “5”, and “5” of the display time blinks as shown in FIG. When “5” is blinking, FIG.
When both operation keys 19 and 20 are pressed again as shown in (f), "5" returns to a lighted display, the operating time during use is changed to 5 minutes, and the preset 8 is used. Instead of minutes, 5 minutes is fixedly set as the operation time of the timer 15. When the timer is used next time, the operation time is always set to 5 minutes, and the timer starts to operate.

Next, the operation of the timer device of the heating cooker according to the present embodiment will be described with reference to FIG. In the figure, Tm indicates the operation time set by the timer 15, the + key 19 indicates the operation key 19 for increase, and the-key 20 indicates the operation key 20 for decrease.
Is shown.

First, when the user pushes the fire extinguishing button, the main valve 8 is opened and the electromagnetic safety valve 9 is opened, and fuel gas is supplied to the burner 2. At this time, while the point fire extinguishing button is pressed and operated, the ignition switch 11 closes the contact, the igniter 3 performs spark discharge, and the fuel gas supplied to the burner 2 is ignited. When the supplied fuel gas is ignited and ignited, the thermocouple 4 is heated, and the temperature of the thermocouple 4 rises and the output of the thermocouple 4 increases.

When the output of the thermocouple 4 exceeds a predetermined value, the ignition of the burner 2 is detected. In the timer device 14, when the desired operation time is fixedly set by the timer setting section 17, the desired operation time is set. Is read and set, and the timer 15 starts operating. If the desired operation time is not fixedly set, a predetermined fixed 8 minutes is set as the operation time, and the timer 15 starts operating. However, the main valve 8
When the output of the thermocouple 4 is less than a predetermined value when a predetermined time has elapsed since the signal switch 12 closes the contact point in the open state, the timer 15 does not operate and the electromagnetic safety valve 9 is closed. Then, the supply of the fuel gas to the burner 2 is stopped.

When the timer 15 starts operating, the remaining time of the operating time of the timer 15 is lit on the time display section 16. The operating time gradually decreases with the passage of time, and the time display section 16 displays the remaining time in minutes, and displays the remaining time in seconds when it becomes less than 30 seconds.

During the operation of the timer 15, it is determined whether or not the increase and decrease operation keys 19 and 20 are simultaneously pressed for two seconds or more. Operation keys 19 and 2 for increasing and decreasing
When 0 is simultaneously pressed for 2 seconds or more, the display time of the time display section 16 changes to a blinking display. Thereafter, when only the increasing operation key 19 is pressed, the display time increases by one minute each time the pressing operation is performed, and the operating time increases by one minute. When only the decrease operation key 20 is pressed, the display time decreases by one minute each time the push operation is performed, and the operation time decreases by one minute. Then, when the increase and decrease operation keys 19 and 20 are simultaneously pressed again, the display time returns to the lighting display again, and the operation time during use of the timer is changed to the display time. At the same time, the display time is fixedly set as a new operation time instead of the predetermined operation time of 8 minutes and stored. Then, returning again to the process of A in FIG.
It is determined whether or not 20 has been simultaneously pressed for 2 seconds or more.

On the other hand, if the increase / decrease operation keys 19 and 20 are not simultaneously pressed for more than 2 seconds while the timer 15 is operating, the increase / decrease operation keys 19 are used each time the increase / decrease operation keys 19 are pressed. The operation time of the middle timer 15 increases by one minute, and the operation time is temporarily extended.
When the increase operation key 19 is not pressed and the decrease operation key 20 is pressed, the operation time of the timer 15 in use is reduced by one minute for each press operation, and the operation time is temporarily reduced. Is done. Operation keys 19 and 2 for increasing and decreasing
If none of the zeros is pressed, the operating time is not changed.

The operation time fixedly set by the timer 15 or, if the operation time is temporarily changed while the timer 15 is being used and set, whether or not the operation time after the change has elapsed is determined. If it is determined that the operating time has elapsed, the electromagnetic safety valve 9 is closed, the supply of fuel to the burner 2 is stopped, and the combustion of the burner 2 is stopped. At this time, when the fire extinguishing button is operated to extinguish the fire, the main valve 8 is closed and the signal switch 12 is turned off.
The display on the time display section 16 disappears.

On the other hand, if the operation time set by the timer 15 has not elapsed, it is determined whether or not the fire extinguishing button has been pressed to extinguish the fire. The safety valve 9 is closed, and the display on the time display section 16 is turned off. If the fire extinguishing button has not been pressed, the process returns to A in the figure, and it is determined whether the increasing and decreasing operation keys 19 and 20 have been simultaneously pressed for 2 seconds or more, and the subsequent operations are repeated. .

In this embodiment, when the output from the thermocouple 4 exceeds a predetermined value and ignition is detected, the timer 15
Starts the operation, but is not limited to this. When the ignition is performed by pressing the fire extinguishing button, the timer 1 is detected by the ignition detection.
5 may start operating.

Further, in this embodiment, the remaining time of the operation time of the timer 15 is displayed on the time display section 16 from the time when ignition is detected, and the time is displayed on the time display section 16. By doing so, ignition can be confirmed. However, the present invention is not limited to this, and the operating time may be displayed on the time display section 16 when the ignition is performed by pressing the point fire extinguishing button. In that case, it is preferable to provide an ignition lamp, which is turned on when the ignition of the burner 2 is detected, to confirm the ignition, separately from the time display section 16.

In this embodiment, a new operation time can be fixed and set by performing a special operation while the timer 15 is operating.
That is, a new operation time may be fixedly set by operating before the operation of the heating unit.

As a power source, a trademark power source or a dry battery is used. When a new operation time is fixedly set instead of a predetermined operation time fixed and set in advance, a power failure or battery When the supply of power is cut off due to replacement or the like, a timer may be configured so that the new operation time is reset. The new operation time may be read from the storage unit when power supply is restored due to a power recovery or the like, so that it is possible to save the trouble of changing the operation time after the power is restored.

In this embodiment, a burner is shown as the heating means. However, an electric heater or the like may be used.

[Brief description of the drawings]

FIG. 1 is a gas circuit diagram of a heating cooker provided with a timer device according to one embodiment of the present invention.

FIG. 2 is a functional block diagram for explaining control contents of the heating cooker.

FIG. 3 is an explanatory diagram of a method of setting an operation time of a timer according to the embodiment.

FIG. 4 is a flowchart showing the operation of the embodiment.

[Explanation of symbols]

1. Heating cooker, 2. Burner, 14. Timer device, 15. Timer, 16. Time display section, 17.
Timer setting part, 18 operation part, 19 operation key for increase, 20 operation key for decrease

Claims (4)

[Claims] A timer for stopping the operation of the heating means when an operation time of a predetermined time fixed and set in advance has elapsed; a time display section for displaying a remaining time of the operation time of the timer; A timer device for a heating cooker, comprising: a setting unit that changes and sets an operation time of a timer and changes a display time of the time display unit in accordance with the operation time, and an operation unit for operating the setting unit. By operating the operation unit, the setting unit temporarily changes and sets the operation time of the timer during use of the timer, and sets a new operation time in place of the operation time of the predetermined time. A timer device for a cooking device characterized by setting a fixed time. 2. An operation unit for operating the setting unit, wherein the operation unit operates the operation unit in a predetermined manner so that the operation unit temporarily operates the timer during use of the timer. By changing the setting and operating the operating unit in a different manner from the predetermined method, the setting unit fixes and sets a new operating time instead of the operating time of the predetermined time. The timer device for a heating cooker according to claim 1, wherein: 3. The operation section comprises an increase operation key and a decrease operation key, and operating only one of the increase or decrease operation key causes the setting section to operate the timer. While the timer is temporarily increased or decreased while the timer is in use, and then changed and set, and after simultaneously operating both the increasing and decreasing operation keys, one of the increasing or decreasing operation keys is changed. By operating the increase and decrease operation keys simultaneously, the setting unit changes and sets the operation time of the timer by increasing or decreasing the timer while using the timer, respectively, and 3. The timer device for a heating cooker according to claim 2, wherein the changed operation time is newly fixed and set instead of the operation time of the time. 4. An apparatus according to claim 1, wherein said setting section has an upper limit for a range of operation time which can be changed and set.
The timer device for a cooking device according to any one of claims 1 to 3.