JPH11230551A - Safety device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obviate the necessity to set a timer for every substance to be cooked, by detecting the heating of a cooker with a cooking sensor, and also, detecting the nonexistence of a user with a person sensor, and making an alarm sound an alarm by means of a control means after passage of a specified time. SOLUTION: An alarm 5 is arranged on a stage 4, and a cooking sensor 6 is arranged on the alarm 5, and a cooking sensor 12 is arranged at one flank of the cooking sensor 6. The direction is adjusted for an oven placed at a cooker so that it may enter the detection range of the cooking sensor 12, and the heating of the cooker is detected. Furthermore, a person sensor 7 is arranged on the cooking sensor 6, and a person sensor 15 is arranged at one flank of the person sensor 7, and the person sensor 15 detects the nonexistence of a user, and after passage of a specified time, a control means 19 makes an alarm 5 sound an alarm. Hereby, there is no necessity to perform timer setting for every substance to be cooked, and even if there is no person, this safety device can prevent the scorching of the oven or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a safety device for a cooking appliance.

[0002]

2. Description of the Related Art A safety device of this type has been disclosed in, for example, Japanese Utility Model Laid-Open No. 6-46202. According to this publication, a gas stove provided with a burner, an electromagnetic valve for opening and closing a gas passage, and a timer is disclosed.

[0003]

In the above-mentioned gas stove, the user determines the set time according to the type of the object to be cooked using a timer, burns the gas, and sounds the buzzer and stops the gas when the set time is reached. . As described above, it is necessary to set the timer for each object to be cooked, and there is a first disadvantage that the operation is complicated. Further, since the gas is stopped when the set time comes, there is a second drawback that if the set time is wrong, cooking is insufficient and the cooking is completed.

[0004] As described above, it is necessary to provide a safety device including a timer, a buzzer, and a solenoid valve in each cooker.
There is a third disadvantage, which is costly. In order to solve the above-mentioned drawbacks, it is conceivable to eliminate the buzzer or the like. There is a fourth disadvantage. Therefore, the present invention takes into consideration such conventional drawbacks, and it is not necessary to set a timer for each object to be cooked, cooking does not end inadequately, the cost is low, and a pot or the like can be used even when no one is present. Provide a safety device that does not cause burning.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cooking sensor for detecting heating of a cooker, a human sensor for detecting the presence or absence of a user, and an alarm unit for issuing an alarm. The cooking sensor detects the heating of the cooker, the human sensor detects the absence of the user, and when a predetermined time has elapsed, the control unit causes the alarm unit to alarm.

The present invention desirably places the safety device separately and separately from the cooker.

[0007] The present invention is preferably such that each of the cooking sensor and the human sensor is capable of adjusting the detection direction.

Preferably, the present invention is provided with a stop switch for stopping the alarm, and when the stop switch is not turned on, the control means continues the alarm.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A safety device 1 according to an embodiment of the present invention will be described below with reference to FIGS. 1 is a perspective view of the safety device 1, FIG. 2 is a block diagram of the safety device 1,
FIG. 3 is a plan view showing a use state of the safety device 1. In these figures, a cooking device 2 is, for example, a gas stove, and a pot 3 and the like are placed on a gotoku (not shown) arranged near the center.

The safety device 1 includes, for example, a table 4, an alarm unit 5,
It comprises a cooking sensor unit 6, a human sensor unit 7, and a main unit 8. The table 4 serves as a base of the safety device 1,
A mounting plate 9 is mounted on one surface thereof, and the mounting plate 9 is fixed to, for example, a wall surface of a kitchen with a double-sided tape or a screw.

The alarm unit 5 is arranged on the base 4 and has a speaker 10 and an amplifier 11 built in the main body.
The alarm unit 5 is configured to issue an alarm. The cooking sensor unit 6 is disposed on the alarm unit 5 and one of the cooking sensor units 6.
A cooking sensor (for example, a stove use detector) 12 is disposed on the side surface. The cooking sensor 12 has a lens disposed on the exposed surface, and includes an infrared light receiving element and a circuit board (both not shown) on which the element is mounted.

The cooking sensor 12 focuses infrared rays (for example, a pot 3 on the heated cooker 2) emitted from a distant object by a lens, detects the infrared rays with an infrared light receiving element, and outputs a detection current on a circuit board. Is converted into an electric signal through the electric component. For example, when the surface temperature of the object becomes a certain temperature or higher, the output terminal of the circuit board of the cooking sensor 12 becomes H
Output the i signal.

Further, the cooking sensor 12 is configured to be adjustable within a predetermined angle in the vertical direction (for example, 45 degrees upward and 10 degrees downward). Further, the cooking sensor unit 6
Is rotatable with respect to the alarm unit 5, and the cooking sensor 12
Is rotatable left and right (direction A in FIG. 1) on a plane perpendicular to the axis 13 of the safety device 1. Thus, the cooking sensor 12 is configured to be able to adjust the detection direction. For example, in FIG. 3, the direction of the cooking sensor 12 is adjusted such that the pot 3 placed on the cooking device 2 falls within the detection range 14 of the cooking sensor 12.

The human sensor 7 is disposed, for example, on the cooking sensor 6, and a human sensor (human detector) 15 is disposed on one side of the human sensor 7. The human sensor 15 has a lens disposed on the exposed surface, and includes an infrared light receiving element and a circuit board (both not shown) on which the element is mounted.

The human sensor 15 collects infrared rays emitted by a user 16 at a remote position by a lens, detects the infrared rays with an infrared light receiving element, and outputs a detected current through an electric component on a circuit board to an electric signal. Has been converted to. Thus, the human sensor 15 outputs a Hi signal when the user 16 is present, and outputs a Lo signal when the user 16 is absent.

The human sensor 7 is rotatable with respect to the cooking sensor 6, and the human sensor 15 is arranged in a direction perpendicular to the axis 13 of the safety device 1 in the left-right direction (direction A in FIG. 1). It is rotatable. Thus, the human sensor 15 is configured to be able to adjust the detection direction. For example, a user 16 standing in front of the cooker 2 detects a detection range 17 of the human sensor 15.
The direction of the human sensor 15 is adjusted so as to enter the inside.

The main part 8 is disposed, for example, on the human sensor part 7 and can rotate in the direction A. An indicator 18 is provided on one side of the main part 8.
Are displayed, and the current time and the like are displayed. Inside the main part 8, a control means 1 composed of, for example, a microcomputer or the like is provided.
9 are arranged. The control means 19 includes, for example, a control unit (C
PU) 20, a timer 21, and a memory 22.

Input switch (condition setting input switch) 2
Reference numeral 3 denotes, for example, a plurality of key switches, which are arranged on the upper surface of the main part 8. The input switch 23 is used for switching between operation modes, inputting the set time of the timer 21, inputting the current time, and the like. The stop switch (warning stop switch) 24 is disposed on the upper surface of the main unit 8, and the control unit 19 controls to stop the warning when the stop switch 24 is pressed (ON) while the warning unit 5 is warning. . As long as the stop switch 24 is not turned on, the control means 19 continues the alarm. The safety device 1 is configured by the above components. The safety device 1 is not incorporated in the cooking device 2,
And are located independently and apart.

As described above, the human sensor 15, the cooking sensor 12, the input switch 23, the stop switch 24, the alarm unit 5, and the alarm signal transmitter 25 are each connected to the control means 19 (see FIG. 1). (See FIG. 2). The alarm signal transmitter 25
Is to output an alarm signal to an external slave unit (portable reception alarm 26 or stationary reception alarm 27).

Next, the operation of the safety device 1 will be described with reference to the flowchart of FIG. The safety device 1 is always energized and used to prevent forgetting to be detected due to forgetting to turn on the power. First, the control unit 20 resets the timer 21 to clear the count value (Step S1).

Next, the cooking sensor 12 detects the heating of the cooker 2 (for example, a gas stove), and it is determined whether the stove is lit or not (YES) (S2), and when the human sensor 15 detects the absence of the user 16, (S3), the timer 21 is monitored (S4). That is, the timer 21 is counted up.

Next, the timer 21 is operated for a predetermined time (for example, 15
If it is determined that the number has exceeded (minutes) (S5), steps S2, S3, S4, and S5 are repeated again. When a predetermined time has elapsed (S5), an alarm is output (S5).
6).

That is, the control section 20 causes the alarm section 5 to output an alarm. Further, the control unit 20 causes the alarm signal generator 25 to output an alarm signal to the portable reception alarm 26 or the stationary reception alarm 27.

As described above, when a predetermined time has elapsed while the cooker (gas stove or the like) 2 is heated (while the fire is on),
If the user 16 is in another room, or if the loud noise makes it difficult to hear the alarm sound of the safety device 1, the stationary reception alarm 27 is installed in another room.

Alternatively, when the user 16 wears a portable reception alarm 27 which can be carried in a pendant type, a wristwatch type, a card type or the like, for example, a radio alarm signal is received from the safety device 1, Converts to alarm sound or voice and alerts third parties.

For the hearing-impaired user 16, the portable reception alarm 26 may also use a vibrator for warning, and the stationary reception alarm 27 may also use a flashing lamp for warning. In FIG. 4, if step S2 is determined to be NO or step S3 is determined to be YES, the process returns to immediately before step S1. The predetermined time (for example, 15
Change) can be registered by operating the input switch 23.

By operating the input switch 23, the mode is switched to the kitchen timer mode, and for a certain period of time (for example, 30 minutes).
After the elapse of (minutes), an alarm is output regardless of the presence or absence of the user 16 to perform the function as a kitchen timer. Thereafter, when the user 16 presses the stop switch 24, the system automatically returns to the monitoring mode shown in FIG.
It is possible to automatically monitor the cooking device 2 and the user 16 during cooking to provide more safety.

It should be noted that the table 4 shown in FIG.
Although the cooking sensor unit 6, the human sensor unit 7, and the main unit 8 are configured by stacking cylindrical blocks, they may not be particularly cylindrical but may be cubes. It is sufficient that the directions of the human sensor 15, the cooking sensor 12, the display 18, and the speaker 10 can be adjusted independently. Also, the order of stacking the components 5, 6, 7, 8 may not be as shown in FIG. Further, the main unit 8 provided with the display 18
Alternatively, the alarm unit 3 provided with the speaker 10 may be integrated.

[0029]

As described above, according to the first aspect of the present invention, the cooking sensor detects the heating of the cooker (during heating), the human sensor detects the absence of the user (there is no user), and When the time has elapsed, the control means causes the alarm unit to make an alarm. As described above, when cooking is performed for a predetermined time without a user, a warning is issued to alert the user. As a result, there is no danger of burning of the pot or the like or fire.

In this way, since the predetermined time is determined uniformly, it is not necessary to set a timer for each object to be cooked as in the related art. Then, only the alarm is issued as described above, and thereafter, it is left to the discretion of the user, so that it is possible to prevent the cooker from automatically stopping and cooking to be insufficiently completed as in the related art.

According to the second aspect of the present invention, the present safety device is not incorporated in the cooking device, but is disposed independently of and separate from the cooking device. As a result, if one safety device is installed for a plurality of cookers, the safety of each cooker can be ensured, so that the cost as a whole system is reduced.

According to the third aspect of the present invention, the cooking sensor and the human sensor are each configured so that the detection direction can be adjusted. As a result, even if various types of cookers are placed and the distance between the cooker and the user is different, the detection direction of the cooking sensor is adjusted substantially at the center of the cooker, and the detection of the human sensor is substantially at the center of the user. The direction can be adjusted. Therefore, the detection accuracy of the cooking sensor and the human sensor increases. In addition, the present safety device can adjust the detection directions of the cooking sensor and the human sensor to one cooking device, so that it can be applied to any type of cooking device and has high versatility.

According to the fourth aspect of the present invention, when an alarm starts sounding, the alarm continues to sound until the stop switch is pressed (turned on). I have to go to where the bowl is. As a result, it is useful for preventing burning of pots and the like and fire.

[Brief description of the drawings]

FIG. 1 is a perspective view of a safety device 1 according to a first embodiment of the present invention.

FIG. 2 is a block diagram of the safety device 1.

FIG. 3 is a plan view showing a use state of the safety device 1.

FIG. 4 is a flowchart showing an operation of the safety device 1.

[Explanation of symbols]

 5 alarm unit 12 cooking sensor 15 human sensor 19 control means

Claims (4)

[Claims] A cooking sensor for detecting heating of the cooking device;
A human sensor for detecting the presence or absence of a user, an alarm unit for issuing an alarm, and control means, wherein the cooking sensor detects heating of the cooker, and the human sensor detects the absence of the user. The safety device, wherein when a predetermined time has elapsed, the control means causes the alarm unit to alarm. 2. The safety device according to claim 1, wherein the safety device is arranged separately and separately from the cooker. 3. The safety device according to claim 1, wherein each of the cooking sensor and the human sensor is configured to be able to adjust a detection direction. 4. The safety device according to claim 1, further comprising a stop switch for stopping the alarm, wherein the control unit continues the alarm when the stop switch is not turned on.