JPH0740883Y2 - Gas stove temperature sensor actuation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a temperature sensor operating device for a gas stove.

[Conventional technology]

When the temperature sensor senses the set temperature, the gas burner is extinguished to prevent overheating, and in a stove burner with improved safety, economy, convenience, etc., the center of the burner is in contact with the pot bottom, etc. It is necessary that the temperature sensor that detects the temperature of, etc. protrudes above the upper surface of Gotoku. Therefore, when placing a pot etc. on Gotoku, if the pot etc. is not dropped down from above and placed, the pot etc. will catch on the temperature sensor and it will be difficult to set the pot etc. Further, when the stove is not used, the temperature sensor is projected upward, which causes a problem in appearance.

Therefore, in order to solve the above problems, a temperature sensor actuating device has been proposed which moves the temperature sensor up and down in synchronization with the flashing operation of the gas stove. As a conventional technique of this temperature sensor actuating device, for example, JP-A-62-69021
As disclosed in Japanese Patent Laid-Open Publication No. 2003-242242, there is one in which a blinking operation means and a temperature sensor are provided so as to interlock with each other via a rack and pinion mechanism.

[Problems to be solved by the device]

In the above-mentioned conventional technology, since the rack and pinion is incorporated in the interlocking mechanism of the blinking operation means and the temperature sensor, especially in the case of the cock type blinker, unless the rack and pinion are disengaged, the burner heat power adjustment is performed. However, there is a problem in that the structure and the operation are complicated because it cannot be performed.

The present invention has been made in view of such problems of the conventional technology,
By incorporating an operating body equipped with a temperature sensor operating part, a thermal power adjusting part, and a pilot gas passage closing part in the interlocking mechanism of the blinking operation means and the temperature sensor, the thermal power of the burner can be adjusted easily and reliably regardless of the operation of the temperature sensor. The object is to provide a gas stove temperature sensor actuation device that can be operated.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the invention of the temperature sensor operating device of the gas stove according to the present invention is the flashing of the temperature sensor operating device of the gas stove in which the temperature sensor moves up and down in synchronization with the blinking operation. The operating means and the temperature sensor are provided so as to interlock with each other via an operating body having a temperature sensor operating zone, a thermal power adjusting zone, and a pilot gas passage closing zone, and the invention of claim 2 Is a cam plate having a temperature sensor operating zone, a thermal power adjusting zone, and a pilot gas passage closing zone.

[Action]

According to the invention of the temperature sensor actuating device of the gas stove according to the present invention having the above-mentioned constitution, in the interlocking mechanism of the blinking operation means and the temperature sensor, the temperature sensor operating zone, the heat adjustment zone and the pilot gas passage are closed. Since the actuating body with the zone is incorporated, only by operating the blinking operation means according to a predetermined program, the temperature sensor is moved up and down in accordance with the ignition or extinction of the burner in the temperature sensor actuating zone of the actuating body. The thermal power adjustment during burner combustion is performed in the thermal power adjustment zone of the operating body, and the return of the operating body associated with the pilot extinguishing after the completion of ignition at the initial stage of ignition is reliably performed by the pilot gas passage closing zone. According to a second aspect of the present invention, a cam plate is used as the actuating member, and the temperature sensor operating zone moves up and down with the ignition or extinguishing of the burner within a predetermined rotation angle range of the cam plate. During the burning of the burner, the thermal power is adjusted on the cam surface of the thermal power adjustment zone, and the cam plate is returned on the pilot surface of the pilot gas passage closed zone after the ignition is completed after the ignition is completed.

[Embodiment] An embodiment of a temperature sensor operating device for a gas stove according to the present invention will be described below with reference to the drawings.

The embodiment is an example in which the temperature sensor actuating device of the present invention is applied to a gas stove equipped with a cock type blinking device, and a cam plate is used as an actuating body, and 1 is a cock type blinking device (not shown). When the stove is used (when igniting), the operating knob provided on the operating shaft 4 of the control knob 1 rotates the operating knob 1 in a predetermined direction in a predetermined direction by a predetermined angle. Open the gas passage and the main gas passage, operate the piezoelectric device, first ignite the pilot burner,
Further, the stove burner 5 is ignited by a pilot flame, and then the thermocouple type electromagnetic safety valve is held by adsorption. After the ignition of the stove burner 5 is completed, when the turning power of the operating knob 1 is released,
The pilot gas passage is closed to extinguish the pilot flame (at this time, the operation knob 1 returns slightly), but the stove burner 5 continues to burn. At the time of extinguishing the fire, when the operating knob 1 is rotated clockwise to the original position, the main gas passage is closed, the stove burner 5 is extinguished, and the thermocouple type electromagnetic safety valve is also closed.

2 is a temperature sensor, and the temperature sensor 2 is located at the center of the stove burner 5 and moves up and down in synchronization with the blinking operation by the operation knob 1. For example, when the stove is used,
When the stove burner 5 is ignited, it rises to come into contact with the bottom surface of a pot or the like, and when the stove burner 5 is extinguished, it descends to separate from the bottom surface of the pot or the like. That is, a guide cylinder 7 also serving as a spring receiver for the burner mount 6 is positioned vertically at the center of the central air hole 5a of the stove burner 5, and the guide cylinder 7 is provided with the heat sensitive element 2a at the tip thereof. When the tubular body 2b is slidably attached and the spring 8 is interposed between the tubular body 2b and the guide tube 7 and the tubular body 2b descends against the spring 8, the tip heat-sensitive element 2a does not move. When the cylindrical body 2b rises due to the elastic force of the spring 8 when it is immersed in the heat shield cover 5c provided on the burner cap 5b of the filter burner 5, the tip end heat-sensitive element 2a is exposed from the heat shield cover 5c. It is provided so as to project slightly upward.

Reference numeral 3 denotes a cam plate as an actuating body, which is a thermal power adjustment zone b for adjusting the thermal power of the stove burner 5 irrespective of the vertical movement of the temperature sensor 2 and the cam surface 3a of the temperature sensor operating zone a for vertically moving the temperature sensor 2. Cam surface 3b and stove burner 5
When the pilot gas passage is closed after ignition to the cam plate 3
Is provided with a cam surface 3c of the pilot gas passage closing zone c for slightly returning, and is provided so as to be fixed to the operation shaft 4 and to cooperate with the operation knob 1.

The cam plate 3 and the temperature sensor 2 are supported at their base ends by a support shaft 10, and a spring rod (torsion spring) 11 biased upwardly is pressed against the cam surface of the cam plate 3 so that the tip of the spring rod 11 is in contact. Axis 12
By associating with the base end of the interlocking lever 13 which is free to swing about the fulcrum, and by associating the tip of the interlocking lever 13 with the pin 15 provided on the leg rod 14 that can be fixed to the tubular body 2b of the temperature sensor 2. It is provided to work together.

The relationship between the spring 8 and the spring rod 11 is as follows.
It is the spring force of the spring rod 11. In the figure, 5d is a burner body of the stove burner 5, 5e is a mixing tube, and 16 is a pot placed on the Gotoku 9.

In the above configuration, the unused position (fire extinguishing position) (second
(See FIG. 4 and FIG. 4 (a)) The cam plate 3 in FIG.
That is, when the temperature sensor operating zone a is rotated,
Since the cam rod 3a pushes the spring rod 11 downward with the support shaft 10 as a fulcrum, the lifting of the interlocking lever 13 on the base end side by the spring rod 11 is released, and the interlocking lever 13 and the temperature sensor 2 are released.
Since the cylindrical body 2b of the temperature sensor 2 is in a free state, the cylindrical body 2b of the temperature sensor 2 is lifted by the elastic force of the spring 8 and rises, and the heat sensitive element 2a at its tip is exposed from the heat shield cover 5c of the stove burner 5. And project slightly above Gotoku 9. Then,
The heat-sensitive element 2a is in close contact with the bottom surface of the pan 16 or the like placed on the Gotoku 9 in advance or thereafter (see the solid line in FIG. 1 and the state in FIG. 4B from the state of FIG. 2 and FIG. 4A). Then the cam plate 3
When is rotated from the thermal power adjustment zone b to the pilot gas passage closing zone c, the pilot gas passage and the main gas passage are opened to operate the piezoelectric device, and first, the pilot burner is ignited and the stove burner 5 is ignited by the pilot flame. Then, the thermocouple type electromagnetic safety valve is adsorbed and opened. After confirming that the stove burner 5 has ignited, if the turning power of the operating knob 1 is released (the operating knob 1 is released), the cam plate 3 reverses only the pilot gas passage closing zone c with the closing of the pilot gas passage. Then, the pilot flame is extinguished by closing the pilot gas passage, but the stove burner 5 continues to burn (see FIG. 4C). When the cam plate 3 is in the position shown by the solid line in FIG. 4C, the gas cock of the blinking device is fully opened, and the heating power of the stove burner 5 is at the maximum value.
Therefore, when the cam plate 3 is rotated clockwise from the position shown in FIG. 4C to the position shown in FIG. 4B in the drawing, the gas cock is gradually throttled and the heating power of the stove burner 5 becomes the minimum value. In the heating power adjustment zone b, the spring rod 11 moves up and down without contacting the interlocking lever 13, so that the heating power can be adjusted regardless of the vertical movement of the temperature sensor.

Next, when the cam plate 3 returns to the original position by the fire extinguishing operation by the operation knob 1, that is, the position shown in FIG. 4A, the spring rod 11 moves upward with the support shaft 10 as a fulcrum by the cam surface a of the temperature sensor operating zone a. To move by the urging force of the navel and to raise the base end side of the interlocking lever 13 at the tip of the spring rod 11, the interlocking lever 13 rotates clockwise around the pivot 12 in the figure, and the pin 15 and the leg rod at its tip end side. The pair of cylinders 2b of the temperature sensor 2 is pulled down and lowered against the spring 8 via 14 and the tip end heat-sensitive element 2a is immersed in the heat shield cover 5c of the stove burner 5 (from the state shown in FIG. Refer to the state of the figure).

[Effect of device]

The invention according to claim 1 of the temperature sensor actuation device for a gas stove according to the present invention is a gas stove in which the temperature sensor is projected or retracted in synchronization with the ignition or fire extinguishing operation by the flashing operation means. Incorporating an operating body with a temperature sensor operating part, a thermal power adjustment part, and a pilot gas passage closing part into the interlocking mechanism of the burner allows easy adjustment of the burner thermal power regardless of the vertical movement of the temperature sensor due to ignition or extinguishing of the burner. Since it has a structure that can be surely done,
The structure and operation can be simplified as compared with the conventional technology, and the series of operations of the vertical movement of the temperature sensor, the adjustment of the thermal power, and the closing of the pilot gas passage can be performed smoothly simply by operating the blinking operation means according to a predetermined program. Because it is performed, it is easy to use.

The invention according to claim 2 uses a cam plate for the actuating member,
Since the cam surface of the temperature sensor operating zone, the thermal power adjustment zone and the pilot gas passage closing zone provided on the cam plate is configured to perform a series of operations of vertical movement of the temperature sensor, thermal power adjustment and pilot gas passage closing, The operation of can be performed smoothly and surely under a simple structure.

[Brief description of drawings]

The drawings show an embodiment of a temperature sensor actuation device for a gas stove according to the present invention. FIGS. 1 and 2 are overall sectional views of the operating state, and FIG. 3 is an enlarged sectional view of only the temperature sensor portion. 4B, 4A, 4B, and 4C are explanatory views showing the operating state of the operating body (cam plate). 1 ... Blinking operation means, 2 ... Temperature sensor, 3 ... Actuator, a ... Temperature sensor operating zone, b ... Thermal power adjustment zone, c ... Pilot gas passage closing zone.

Claims (2)

[Scope of utility model registration request] 1. A gas stove temperature sensor operating device in which a temperature sensor moves up and down in synchronization with a blinking operation, in which a blinking operating means (1) and a temperature sensor (2) have a temperature sensor operating zone, a thermal power adjusting zone and a pilot. A temperature sensor actuation device for a gas stove, which is provided so as to interlock with each other via an actuating body (3) having a gas passage closing zone. 2. The temperature of a gas stove according to claim 1, wherein the operating body (3) is a cam plate having a temperature sensor operating zone (a), a thermal power adjusting zone (b) and a pilot gas passage closing zone (c). Sensor actuation device.