Alarm device for kitchen

Abstract

To provide an alarm device for a kitchen, which is simply constructed, can be manufactured at low cost, and can accurately and momentarily inform people in the vicinity of change in a situation accompanying a combustion of a gas stove, thereby preventing a fire accident.SOLUTION: A gas stove 3 equipped with an appliance valve 6 is installed in a kitchen 1, alarming a fire in the kitchen 1 by an alarm device. An alarm lamp 8 and an alarm buzzer 9 are installed on partition walls 6 and 7 near the gas stove 3. When cooking using combustion on the gas stove 3 starts, the alarm lamp 8 is turned on. After the gas stove 3 is continuously used and the alarm lamp 8 is turned on for a predetermined time, a blinking actuation of the alarm lamp 8 can be carried out.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an alarm device for a kitchen which has a simple structure, can be manufactured at low cost, and can accurately and continuously inform people in the vicinity of changes in the situation accompanying the combustion of a gas stove, thereby preventing fire accidents. [Background technology]

[0002] Conventionally, there has been a kitchen timer with an alarm that can prevent fires when the kitchen is left unattended for an extended period of time with the gas stove on. This involves a flame sensor and a human body detection sensor monitoring the gas stove flame and the person cooking, calculating the time difference between when each is active and inactive, and emitting a sound using a warning device and an alarm device to let people around know that the kitchen will be unattended for an extended period of time while the gas stove is in use, so that people nearby or family members who have just returned home can extinguish the fire, thereby preventing fires (see, for example, Patent Document 1).

[0003] However, this conventional kitchen timer requires other components such as a flame sensor, a human body sensor, an alarm device, and an alarm device, making it expensive. In addition, the operation of these components is complicated, making them difficult to use.

[0004] To solve such problems, there is a safety device for gas stoves that is equipped with a human body detection sensor that detects the presence of a person cooking and immediately automatically extinguishes the flame if the person leaves the stove for a certain period of time (see, for example, Patent Document 2). However, this conventional safety device had a human body detection sensor attached to the gas stove, which required the cook to be constantly restrained by the gas stove, depriving the cook of proper and free movement.

[0005] In addition, there are gas stoves equipped with a human detection device that have a human detection sensor installed in front of them, and only when the human detection sensor detects a person, the burner is allowed to burn, and the burner stops burning after a certain period of time has passed since the sensor no longer detects a person (see, for example, Patent Document 3).

[0006] However, while this conventional device ensures the safety of using the gas stove, it has the drawback of making the use of the gas stove rigid and losing the appropriate degree of freedom.

[0007] To solve this problem, there is a cooking counter alarm device that includes a sensor, such as a temperature sensor, light sensor, or electromagnetic wave sensor, which detects that the cooking counter is in operation (heating), a device that converts the output of the sensor into a desired electrical signal, and a cooking counter alarm device that responds to the output of the conversion device to intermittently emit an alarm while the cooking counter is detected to be in operation, or emits a single or multiple alarms after detection or after a certain period of time, thereby making the user aware that the cooking counter is in operation (see, for example, Patent Document 4).

[0008] However, this conventional device required a sensor to detect whether the cooking table was in operation, and during the detection period, the alarms issued regardless of changes in the cooking table's operating status generally had little change, which caused distraction and slowed the response of the detection sensor. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2001-134867 A [Patent Document 2] Japanese Patent Application Publication No. 6-2840 [Patent Document 3] Japanese Patent Application Publication No. 6-109244 [Patent Document 4] Japanese Patent Application Publication No. 9-229370 Summary of the Invention [Problem to be solved by the invention]

[0010] To solve such problems, and it is an object of the present invention to provide an alarm device for a kitchen which has a simple structure, can be manufactured at low cost, and can accurately and continuously inform people in the vicinity of changes in the situation accompanying the combustion of a gas stove, thereby preventing fire accidents.

[0011] The invention of claim 1 is a kitchen alarm device in which a gas stove with an appliance valve is installed in the kitchen and which can warn of open flames in the kitchen. An alarm lamp and alarm buzzer are installed on a partition wall near the gas stove, and the alarm lamp is turned on when cooking begins using combustion on the gas stove. After the gas stove is continued to be used and the alarm lamp is turned on for a predetermined period of time, the alarm lamp is made to flash. When the gas stove has just been used, the alarm lamp is turned on in the normal state to notify the user that the kitchen is in a normal operating condition, and after the gas stove is continued to be used, the alarm lamp is made to flash to notify the user that the kitchen environment requires some caution.

[0012] The invention of claim 2 is a gas stove that starts cooking. 、 The appliance tap is turned to open the gas valve, and the alarm lamp is turned on so that it can be lit when ignition is performed by the ignition device; the kitchen alarm reference time is set to the start of cooking, and this cooking start time is set to normal operation when ignition is performed by the ignition device, by turning the appliance tap and opening the gas valve when the gas stove is in use; this can be naturally and reliably set by normal operation of the gas stove, without relying on the operation of a flame detection sensor, human body detection sensor, warning device or alarm device as in the past; and the configuration is simplified and the number of parts is reduced, making it possible to manufacture at low cost. The invention of claim 3 flashes the alarm lamp, then continues to use the gas stove, and after flashing the alarm lamp for a predetermined period of time, turns off the alarm lamp and activates an alarm buzzer instead to notify that the kitchen usage environment has transitioned from a slightly cautionary situation to a cautionary situation, switches from a visual alarm to an auditory alarm to call attention to the area around the kitchen, and notifies that the kitchen usage environment has transitioned from a cautionary situation to an alert situation.

[0013] The invention of claim 4 increases the volume of the alarm buzzer when the gas stove is continued to be used after a predetermined time has elapsed since the alarm buzzer was activated, strengthens the auditory warning, and notifies the user that the kitchen environment has transitioned from a cautionary state to a dangerous state, thereby notifying those in the vicinity of the kitchen that a dangerous situation is imminent. Effect of the Invention

[0014] The invention of claim 1 has an alarm lamp and an alarm buzzer installed on a partition wall near the gas stove, and the alarm lamp is turned on when cooking begins using the gas stove, and after the gas stove is continued to be used and the alarm lamp is turned on for a predetermined period of time, the alarm lamp can be made to flash.Therefore, when the gas stove is first used, the alarm lamp is turned on in the normal state to notify the user that the kitchen is in a safe state of use, and after the gas stove is continued to be used, the alarm lamp is made to flash to notify the user that the kitchen environment requires some caution.

[0015] The invention of claim 2 is a gas stove that starts cooking. 、 Since the alarm lamp can be turned on and lit when the ignition device is activated by turning the appliance tap and opening the gas valve, the kitchen alarm reference time can be set to the start of cooking, and this cooking start time can be set to the normal operation when the ignition device is activated by turning the appliance tap and opening the gas valve while the gas stove is in use, and this can be naturally and reliably set by normal operation of the gas stove, without relying on the operation of a flame detection sensor, human body detection sensor, warning device or alarm device as in the past.In addition, the configuration is simplified and the use of precise and expensive parts is eliminated, making it inexpensive to manufacture.

[0016] In the invention of claim 3, after the alarm lamp is flashed, the gas stove is continued to be used, and after the alarm lamp is flashed for a predetermined period of time, the alarm lamp is turned off and an alarm buzzer is activated instead, thereby switching from a visual alarm to an auditory alarm to call attention to the surroundings of the kitchen and notifying the user that the kitchen usage environment has shifted from a slightly cautionary state to a cautionary state.

[0017] The invention of claim 4 increases the volume of the alarm buzzer when the gas stove is continued to be used after a predetermined time has elapsed since the alarm buzzer was activated, thereby strengthening the auditory warning to notify that the kitchen environment has shifted from a cautionary state to a dangerous state, and widely notifying those around the kitchen that a dangerous state of a fire is imminent. [Brief description of the drawings]

[0018] [Figure 1] 1 is a perspective view showing a state in which a gas stove according to an embodiment of the present invention is used; [Diagram 2] FIG. 4 is an explanatory diagram showing the operating state of the alarm device of the present invention over time. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] An illustrated embodiment in which the present invention is applied to a gas stove installed in a kitchen will now be described. In Figs. 1 and 2, reference numeral 1 denotes a kitchen in which a gas stove 3 is installed on a cooking counter 2 thereof. A trivet 4 is placed on the gas stove 3, and a gas burner 5 is disposed in the center of the trivet. A rotatable appliance valve 6 is provided on the side of the gas stove 3, and when the appliance valve 6 is rotated, a gas valve (not shown) opens to introduce gas into the gas burner 5, which can be ignited via an ignition device (not shown).

[0020] The periphery of the cooking counter 2 is divided by partition walls 6, 7, and an alarm lamp 8 and an alarm device 9 are attached to the partition walls 6, 7 at eye level of the cook. The alarm lamp 8 is activated when cooking on the gas stove 3 starts. 0、 That is, the gas valve (not shown) is opened by rotating the appliance valve 6, and when ignition is performed by a piezoelectric ignition device (not shown), the gas valve is turned on, enabling lighting.

[0021] The alarm lamp 8 operates as shown in Figure 2 at the beginning of cooking. 0 After a certain time has elapsed since t 1 The gas stove 3 and the partition walls 6, 7 are heated as the gas stove 3 burns. Therefore, at the start of cooking t0 is formed naturally by the ignition operation of the gas stove 3, and does not require a precise and expensive flame detection sensor or a temperature detector such as a thermistor as in the conventional method, so that the structure is simple, easy and inexpensive to manufacture, and the cooking start time t 0 can be obtained accurately and quickly.

[0022] Said t 1 After that, the gas stove 3 continues to burn, and when the heating has progressed to one stage, the current of the alarm lamp 8 is turned on and off via a circuit kit (not shown) to make it blink. After a certain time has passed since the start of cooking, 2 The blinking can be continued until (t 0< t 1< t 2 ). Therefore, the visual warning from the warning device is changed from a static warning lamp 8 to an auditory sound, to notify those around the kitchen that the environment in the kitchen 1 requires some caution.

[0023] Said t 2 Thereafter, the combustion in the gas stove 3 continues, and when the heat level rises further, the flashing of the warning lamp 8 is stopped and the warning buzzer 9 is turned on instead. The alarm buzzer 9 vibrates a vibrator (not shown) by electric current, changes its tone according to the frequency of the vibration, and the volume can be adjusted by increasing or decreasing the electric current passing through it. Then, the operation of the alarm device switches from flashing the alarm lamp 8 to sounding the alarm buzzer 9, changing the static visual alarm into a dynamic auditory alarm, which is widely announced around the kitchen.

[0024] In the embodiment, the alarm buzzer 9 sounds after a certain time t has elapsed since the start of cooking. 2 It is turned on automatically and operates at a constant frequency and volume that is initially set so as not to disturb the living environment. After the alarm buzzer 9 starts to operate, a certain time t 3As time passes, the area around the cooking counter 2 becomes noticeably heated, and leaving the gas stove 3 burning poses a greater risk of causing a fire. Therefore, the current flowing through the alarm buzzer 9 is increased, increasing the volume of the sound it makes, and notifying those in the vicinity of the dangerous situation surrounding the gas stove 3.

[0025] After this, the cook is startled by the alarm buzzer 9 and turns off the gas stove 3, or the family member returns home and turns off the gas stove 3. 4 The alarm buzzer 9 sounds at a high volume until the gas supply is stopped. In the figure, 10 is a gas pipe, one end of which is connected to a gas supply source and the other end of which is connected to a gas stove 3.

[0026] The kitchen alarm device of the present invention configured in this manner comprises an alarm lamp 8 and an alarm 9 that can sound, which are installed at eye level of the cook across one or both of the partition walls 6, 7 that divide the kitchen 1, and are connected to an AC power source. Therefore, since there is no need for the conventional precise and expensive flame detection sensors, human body detection sensors, alarm devices, etc., the device can be manufactured cheaply and easily, and the installation work can be easily performed.

[0027] The present invention also determines the start time t 0 is determined as the time when gas combustion by the gas stove 3 starts, and this start time is precisely determined structurally by the ignition operation during the normal operation of the gas stove 3 as described above. Therefore, there is no need to install an operation sensor on the cooking counter or to use measuring devices such as a flame detection sensor or thermistor as in the conventional system, resulting in a simple configuration and ensuring the accuracy of the alarm operation.

[0028] Next, when using the device of the present invention, the alarm lamp 8 and the alarm 9 are operated at different times. Among them, the alarm lamp 8 is operated from the start of cooking with the gas stove 3 t 0、 That is, when the appliance valve 6 is rotated to open the gas valve (not shown), and during normal operation when piezoelectric ignition is performed by an ignition device (not shown), the valve is automatically turned on by the displacement of the valve, and the alarm lamp 8 can be lit.

[0029] The alarm lamp 8 operates as shown in Figure 2 at the beginning of cooking. 0 After a certain time has elapsed since t 1 The gas stove 3 and the partition walls 6, 7 in the kitchen 1 are heated as the gas stove 3 burns.

[0030] The time t 1 After that, if the gas stove 3 continues to burn, the kitchen 1 will heat up further and the temperature situation of the kitchen 1 will change. Therefore, the current of the alarm lamp 8 is turned on and off via a circuit kit (not shown) to make it blink. This blinking operation is stopped after a certain time t has passed since the start of cooking. 2 Allow to continue until (t 0< t 1< t 2 ).

[0031] The flashing operation of the alarm lamp 8, compared to a normal lighting state, visually notifies the user of an abnormal situation and that the kitchen 1 is in a cautionary state. And the time t 2 After that, if the gas stove 3 continues to burn and the kitchen 1 heats up further, it is expected that the kitchen 1 will fall into a situation requiring some caution.

[0032] For this reason, the blinking operation of the alarm lamp 8 is stopped, and instead the operation of the alarm buzzer 9 is switched to, the alarm rank is raised by one level, the warning is strengthened and switched from a visual warning to an audible warning, and this is announced in a wide area around the kitchen.

[0033] That is, the warning area of ​​the flashing alarm lamp 8 is limited to the area around the gas stove 3, and is merely a static warning, but the warning area of ​​the alarm buzzer 9 is wider than that of the alarm lamp 8 through the alarm sound, and the alarm sound notifies the user that something is not normal in the kitchen 1. The alarm buzzer 9 of the embodiment vibrates a vibrator (not shown) by electric current, changes the tone according to the frequency of the vibration, and can adjust the volume by increasing or decreasing the current flowing through the vibrator.

[0034] In the embodiment, the alarm buzzer 9 sounds after a certain time t has elapsed since the start of cooking. 2 It is turned on automatically and operates at a constant frequency and volume that is initially set so as not to disturb the living environment. After the alarm buzzer 9 starts to operate, a certain time t 3 As time passes, the area around the cooking counter 2 becomes noticeably heated, and it is assumed that leaving the gas stove 3 burning poses a greater risk of causing a fire in the kitchen 1. Therefore, the current flowing through the alarm buzzer 9 is increased, and the volume of the sound is raised to notify those in the vicinity of the dangerous situation with the gas stove 3.

[0035] After this, the cook is startled by the alarm buzzer 9 and returns to the kitchen 1, turns off the gas stove 3, or the family member returns home and turns off the gas stove 3. 4 Until then, the alarm buzzer 9 sounds at a loud volume to notify of a dangerous situation in the kitchen 1. [Industrial Applicability]

[0036] In this way, the kitchen alarm device of the present invention has a simple structure and can be manufactured inexpensively, and it can accurately and momentarily notify people in the vicinity of changes in the situation associated with combustion in a gas stove, thereby preventing fire accidents. [Explanation of symbols]

[0037] 1 Kitchen 3 Gas stove 5. Appliance stopper 6,7 Partition wall 8. Alarm lamp 9. Warning Buzzer

Claims

1. This kitchen alarm device is characterized in that a gas stove equipped with an appliance valve is installed in the kitchen and an alarm lamp and an alarm buzzer are installed on a partition wall near the gas stove, and the alarm lamp is turned on when cooking begins due to combustion on the gas stove, and after the gas stove is continued to be used and the alarm lamp is turned on for a predetermined period of time, the alarm lamp can be made to flash.

2. When starting cooking on a gas stove 、 2. The alarm device for a kitchen according to claim 1, wherein the alarm lamp is turned on and can be lit when the appliance valve is turned on to open the gas valve and the ignition device is ignited.

3. 2. An alarm device for a kitchen according to claim 1, wherein after the alarm lamp is made to flash, the gas stove is continued to be used, and after the alarm lamp has been made to flash for a predetermined period of time, the alarm lamp is turned off and the alarm buzzer is activated.

4. 4. The kitchen alarm device according to claim 3, wherein the volume of the alarm buzzer is increased when the gas stove is continued to be used after a predetermined time has elapsed since the alarm buzzer was activated.

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