JP6000312B2 - Gas stove device - Google Patents

Description

  The present invention relates to a point fire extinguisher button that performs point fire extinguishing of a gas stove by a pushing operation, and a gas stove device that includes a first contact and a second contact that are turned on according to a push position of the point fire extinguishing button.

  A gas flow control device equipped with an electromagnetic safety valve is known which, when a point fire extinguishing button is pushed in, moves the valve shaft to the back and forcibly opens the valve body of the electromagnetic safety valve at the tip of the valve shaft. ing. In such a gas flow rate control device, a valve body that is a main valve is further attached in the middle of the valve shaft, and when the fire extinguishing button is pushed in, the main valve is opened first, and further pushing in so that the electromagnetic safety valve is opened. (See, for example, Patent Document 1).

  In this device, there are provided two contacts that are turned on when the point fire button is pushed in. The first contact is turned on when the main valve is opened, and the remaining second contact is an electromagnetic safety valve. It is set to turn on when the valve opens.

  Therefore, when the first contact is turned on and the second contact is turned on, the sparker is operated to ignite the gas burner. After that, when the first contact is turned off, the main valve is closed and the gas burner is turned on. It is possible to detect a state in which the supply of gas to the gas generator is stopped, that is, that the gas burner is in a fire extinguishing state.

JP 2010-196937 A (paragraph 0025)

  In the gas stove device incorporating the above gas flow control device, the first contact is turned off by the fire extinguishing operation, the gas supply to the gas burner is stopped, and the user is notified that the gas burner is in a state of extinguishing the fire. It is conceivable to provide notification means such as a buzzer.

  However, if the buzzer is configured to sound when the first contact changes from the on state to the off state, for example, if the user accidentally touches the fire extinguisher button and pushes it in unintentionally, The first contact that was turned on first was turned on but was not pushed in until the last ignition position, so the second contact was not turned on, and therefore the gas burner was not ignited. This causes a problem that the buzzer for notifying the sound of the gas stove causes the usability of the gas stove device to deteriorate.

  Accordingly, in view of the above-described problems, the present invention provides a gas stove device in which an alarm means such as a buzzer is not activated when the fire extinguishing button is inadvertently pushed and the gas burner is not ignited. Is an issue.

  In order to solve the above problems, the gas stove device according to the present invention ignites the gas burner by pushing from the fire extinguishing position to the ignition position, retreats to the combustion position after ignition, and extinguishes the gas burner by pushing again from the combustion position. A first fire point button that returns to the fire extinguishing position is provided, and a first contact that is turned on while being pushed from the fire extinguishing position to the ignition position, and a first contact that is turned on when the fire extinguishing button reaches the ignition position while the first contact is on. When the point-extinguishing button returns from the ignition position to the combustion position, the first contact is kept on but the second contact is turned off. When the point returns from the combustion position to the fire-extinguishing position, the first contact is maintained. The contact point is set to be turned off, and the notifying means for notifying that the fire extinguishing button has returned to the fire extinguishing position is activated by turning the first contact point from on to off. In gas stove apparatus, the first contact is turned on, when the first contact is turned off before the subsequent second contact is turned on, characterized in that it does not operate the alarm means.

  The gas burner is not ignited when the point-extinguishing button is not pushed to the ignition position. Therefore, in such a case, even if the first contact is turned from on to off, the gas burner is changed from the ignition state to the fire extinguishing state. Since it has not changed, the notification means is not activated.

  In addition, a control unit using a battery as an operating power supply is provided, and when the first contact is turned on, energization to the control unit is started. When the first contact is turned off, the control unit performs its own operation after performing a predetermined operation. It can be considered that the present invention is applied to a gas stove device configured to stop energization of the control unit itself by operation.

  As is apparent from the above description, the present invention operates the notification means even if the first contact changes from on to off when the first contact is turned off before the second contact is turned on. Therefore, when the point fire extinguishing button is unintentionally pushed halfway, the notification means does not operate, and the gas stove device is easy to use.

The perspective view which looked at the gas stove by this invention from the front The figure which shows the piping state in a gas stove Perspective view of thermal power control device The figure which shows the operation state of the micro switch which is a position sensor Flow chart showing operation by ON / OFF of first contact and second contact

  With reference to FIG. 1, 1 is an example of the gas stove apparatus by this invention. A glass top plate 11 is provided on the upper surface of the gas stove device 1, and the top plate 11 is provided with three gas burners 11a, 11b, and 11c. On the other hand, the front panel 12 of the gas stove 1 is provided with thermal power control devices 13a, 13b, and 13c for performing point-extinguishing operations and thermal power control operations of the gas burners 11a, 11b, and 11c. In addition, a grill box 14 is provided in the approximate center of the front panel 12, and an upper fire burner 14 a and a lower fire burner 14 b are installed in the grill box 14. Then, the fire extinguishing and the thermal power adjustment of the upper fire burner 14a and the lower fire burner 14b are performed by the thermal power adjusting device 15.

  Referring to FIG. 2, in the present embodiment, the gas supply lines are branched into four in parallel, and thermal power control devices 13a, 13b, 13c, 15 are provided in the branched supply lines. ing. The thermal power control device 13a will be described as an example. The thermal power control device 13a includes an on-off valve portion 2 for performing point-extinguishing and a flow rate adjusting portion 3 for performing thermal power control.

  In the on-off valve portion 2, a main valve 21a that is opened by a manual operation and a valve body 22a of an electromagnetic safety valve are provided in series. On the other hand, a motor 31 is connected to the flow rate adjusting unit 3 as an electric actuator, and the flow rate is increased or decreased by driving the motor 31. Although both the thermal power control devices 13b and 13c have the same structure as the thermal power control device 13a, the thermal power control device 15 has the same structure as the on-off valve unit 2, but the structure of the flow rate control unit 3 is different from the other.

  The flow rate control unit 3 of the thermal power control device 15 is branched into two parallel systems, each of which is provided with on / off valves 15a and 15b that open and close by electromagnetic force, and an orifice 16 that bypasses both the on / off valves 15a and 15b. It has been. Therefore, for example, when the on-off valve 15a is opened, the heating power of the upper fire burner 14a becomes high fire, and when the on-off valve 15a is closed, the gas passing through the orifice 16 makes low fire.

  With reference to FIG. 3 and FIG. 4, the structure of the thermal power control device 13a will be described by taking the thermal power control device 13a as an example.

  Reference numeral 4 denotes an operation knob which is pushed in when extinguishing a point and is rotated while holding the outer peripheral surface when adjusting the heating power. The operation knob 4 is always urged toward the front side. When the operation knob 4 is pushed against the urging force from the fire extinguishing position, the dog 6 provided on the member housed in the rectangular tube-shaped guide member 5 is pushed together with this member and moves to the back side. . Then, the member provided with the dog 6 moves toward the back to forcibly open the original valve housed in the on-off valve portion 2 and the valve body of the electromagnetic safety valve. The valve element is pressed against an electromagnet housed in the safety valve.

  When DC power is supplied to the electromagnet from a control unit (not shown), the electromagnet is excited to attract and hold the valve body in the valve open state. If the pushing force with respect to the operation knob 4 is released in this state, the operation knob 4 protrudes to the heating power adjustment position on the near side by the urging force. When extinguishing the fire, once the operation knob 4 is pushed in until the fire extinguishing position is exceeded and the pushing force is released, the main valve and the electromagnetic safety valve are closed, and the operation knob 4 is returned to the fire extinguishing position and held in that position. The

  When the operation knob 4 is rotated with the operation knob 4 protruding to the heating power adjustment position, the rotation shaft of the rotary encoder 41 as a rotation sensor rotates through the gear train, and is proportional to the rotation amount of the operation knob 4. A pulse signal is output to the control unit. When the control unit receives this pulse signal, the control unit is configured to drive the motor 31 of the thermal power control unit 3 to adjust the flow rate.

  On the left side as viewed from the front of the guide member 5, a micro switch 51 having two contacts that are turned on and off depending on the front and rear positions of the dog 6 is attached. The microswitch 51 is provided with two contacts SW1 and SW2. The first contact SW1 is a position sensor for detecting the position at which energization to the control unit is started, and the second contact SW2 is a position sensor for detecting that the ignition switch is pushed to the ignition position.

  As shown in FIG. 4, when the dog 6 moves from the front toward the back, the first contact SW1 is first turned ON. When the operation knob 4 is further pushed in and the operation knob 4 reaches the ignition position, the second contact SW2 is turned on. When the pushing force on the operation knob 4 is released at the ignition position, the operation knob 4 protrudes backward to the heating power adjustment position as described above, but the member on which the dog 6 is formed is a stopper mechanism (not shown). Thus, the first contact SW1 is held in a state where the first contact SW1 is returned to the position where it is turned on.

  As shown in the figure, the microswitch 51 is fixed so as to be held by three claws 5 a formed on the side surface of the guide member 5. The microswitch 51 is positioned by inserting the two protrusions 5 b through the mounting holes formed in the microswitch 51. Therefore, no screws are used when attaching the microswitch 51 to the guide member 5.

  In the state where the operation knob 4 is in the fire extinguishing position, the dog 6 does not push down the plunger portion 51a, so that the first contact SW1 and the second SW2 built in the micro switch 51 are both turned off (FIG. 4 ( a)). From this state, when the operation knob 4 is pushed in, the dog 6 moves rearward, that is, to the left in FIG. 4, so that the dog 6 pushes down the plunger portion 51a and turns on the first contact SW1 as shown in FIG. To. At this time, the second contact SW2 remains off.

  When the operation knob 4 is further pushed to the ignition position, the dog 6 further pushes the plunger portion 51a and turns on the second contact SW2 as shown in (c).

  When the first contact SW1 is turned on, energization is started in a control unit (not shown). The gas stove 1 of the present embodiment incorporates a dry battery as a power source for operation. In a state where all the operation knobs 4 are in the fire extinguishing position, it is not necessary to operate the control unit, and thus energization to the control unit is stopped. When one of the operation knobs 4 is pushed to ignite, before reaching the ignition position, as shown in FIG. 4B, the first contact SW1 is turned on to start energizing the control unit. Subsequently, when the second contact SW2 is turned on, the control unit detects that the operation knob 4 has been pushed to the ignition position. If one of the operation knobs 4 is already in the thermal power adjustment position and the other control knob 4 is pushed in while the control unit is energized, and the first contact SW1 is newly turned on, the control unit Is already energized, the control unit detects that the first contact SW1 is newly turned on.

  Referring to FIG. 5, when the ignition operation is performed with the above-described configuration, and the first contact SW1 is turned on as described above and energization to the control unit is started, the control unit immediately starts the electromagnetic safety valve (SV). Energization of a holding current is started to the electromagnet (S1). Then, the operation knob 4 is continuously pushed to the ignition position to wait for the second contact SW2 to be turned on (S2), but if the first contact SW1 is turned off before the second contact SW2 is turned on ( S3), the holding current to the electromagnet is stopped. And a control part stops the electricity supply to self, after performing a predetermined | prescribed process, without operating alerting | reporting means, such as a buzzer.

  On the other hand, when the second contact SW2 is turned on, it is assumed that the operation knob 4 is pushed to the ignition position, and the igniter is operated and the buzzer is operated to generate a notification sound at the time of ignition. The notification sound at this time, for example, sounds a single sound twice in succession.

  Although it is confirmed that the gas burner has been ignited (S6), if the fire is extinguished until the ignition is confirmed and the first contact SW1 is turned off (S7), energization to the electromagnet is stopped and the igniter is stopped ( S8) Further, a notification sound at the time of fire extinguishing, for example, one long sound is generated (S9), the control unit performs predetermined processing, and then stops energizing itself.

  On the other hand, if the first contact SW1 is not turned off before the ignition is confirmed, the igniter is stopped (S10), and the ignition is completed.

  After the ignition is completed, cooking is performed by adjusting the thermal power, but when the fire is extinguished and the first contact SW1 is turned off (S11), the energization to the electromagnet is stopped and a notification sound at the time of fire extinguishing is also generated as described above. Pronunciation (S9), the control unit performs predetermined processing, and then stops energizing itself.

  In the above embodiment, one operation knob is provided with both the point fire extinguishing function and the thermal power adjustment function. However, the point extinguishing function is performed by the operation knob, and the thermal power adjustment function is a separate operation such as a tactile switch. You may make it carry out by a part.

  In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Gas cooker 2 On-off valve part 3 Flow control part 4 Operation knob 5 Guide member 13a Thermal power control apparatus 13b Thermal power control apparatus 15 Thermal power control apparatus 31 Motor 41 Rotary encoder 51 Micro switch 6 Dog SW1 1st contact SW2 2nd contact

Claims (2)

  It is equipped with a point fire extinguishing button that ignites the gas burner by pushing from the fire extinguishing position to the ignition position, retreats to the combustion position after ignition, and extinguishes the gas burner by pushing again from the combustion position and returns to the above fire extinguishing position. A first contact that is turned on while being pushed to the ignition position, and a second contact that is turned on when the fire extinguishing button reaches the ignition position while the first contact is on. When returning to the combustion position, the first contact is kept on but the second contact is turned off, and when returning from the combustion position to the fire extinguishing position, the first contact is set to turn off. In the gas stove device in which the notifying means for notifying that the fire extinguishing button has returned to the fire extinguishing position by turning off from on, the first contact is turned on, and thereafter Before 2 contacts is turned on when the first contact is turned off, the gas stove apparatus characterized by not operate the alarm means.   A control unit using a battery as an operating power supply is provided. When the first contact is turned on, energization to the control unit is started. When the first contact is turned off, the control unit performs a predetermined operation and then performs its own operation. The gas stove device according to claim 1, wherein the gas stove device is configured to stop energization of the control unit itself.

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