JPH10246443A - Gas cook stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas cook stove which can prevent the verge of an opening of a counter from being overheated and prevent the occurrence of cracks in the counter due to heat stress and the occurrence of fireproof problems. SOLUTION: A gas cook stove has a composition in which the body portion of the gas cook stove 2 containing a gas burner is fitted in an opening 4 of a counter 3, and which the periphery of the body portion of the gas cook stove 2 is mounted at the verge of the opening 4 of the counter 3. In this case, the body of the gas cook stove 2 is provided with a temperature detecting element 5 which detects the temperature of a location near the verge of the opening 4 of the counter 3. When the temperature of the counter 3 rises by detecting the temperature near the verge of the opening 4 of the counter 3 by means of the temperature detection element 5, the combustion of the burner is stopped, or the heating power of the gas burner is reduced, thus preventing the counter 3 from being overheated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called drop-in type gas stove which is dropped into an opening of a counter of a kitchen or the like and a gas stove body is attached thereto.
More specifically, the present invention relates to a structure for preventing abnormal overheating of an edge portion of a counter opening.

[0002]

2. Description of the Related Art In general, when a gas stove is provided in a system kitchen or the like, a gas stove main body is attached to an opening of a counter so as to be dropped. A gas burner, a grill, and the like are mounted in the casing of the gas stove main body, and a peripheral flange at the upper end of the casing is placed on the upper surface of the opening edge. The top plate of the gas stove is in a shallow pan shape, the top plate is housed in the upper part of the casing, and the gas burner is exposed upward through the hole provided on the bottom of the top plate. A peripheral flange is placed on the opening edge of the counter from above the flange of the casing. Gotoku is placed on the top plate.

[0003] By the way, heat may be transmitted from the gas stove main body side to the opening edge of the counter with the above-mentioned structure, and the peripheral edge of the opening of the counter may become high in temperature. However, it is difficult to use wood material such as plywood or marble. If the formed counter is heated to a high temperature, thermal stress is applied, and there is a possibility that cracks may occur over time, and in the case of a wooden counter, there is also a problem in fire prevention.

Conventionally, as a countermeasure against the temperature of the opening edge of the counter, the height of the pit is increased, or the space between the pit and the bottom surface of the top plate is sufficiently increased to radiate heat on the gas stove body side. The current situation is to promote countermeasures so that there is no temperature effect on the counter. However, in the case of a large pot or an iron plate that covers the top plate, heat is not sufficiently released and the counter becomes hot. In response to this, the instruction manual merely calls attention to such handling. In recent years, it has been common practice to lower the top surface of Gotoku so that it is almost flush with the top surface of the counter, but in such a case, the heat dissipation becomes worse, and the temperature effect on the counter is reduced. There is a problem that it occurs more.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above description. Even if a large pot or an iron plate is placed so as to cover a top plate, it may be displaced from the center of the gas burner. Even if the countertop is used or the top of the counter is lowered so that it is almost flush with the top of the counter, the opening edge of the counter can be prevented from being overheated, and the counter stress cracks due to thermal stress It is an object of the present invention to provide a gas stove that can prevent the occurrence of fire or a problem of fire prevention.

[0006]

In order to solve the above-mentioned problems, a gas stove according to the present invention has a gas stove body 2 having a gas burner 1 fitted into an opening 4 of a counter 3 and a peripheral edge of the gas stove body 2. In the gas stove mounted on the edge of the opening 4 of the counter 3, a temperature detecting element 5 for detecting a temperature near the edge of the opening 4 of the counter 3 is provided in the gas stove main body 2. Is controlled. By detecting the temperature near the edge of the opening 4 of the counter 3 with the temperature detecting element 5, when the temperature of the counter 3 becomes high, the combustion of the gas burner 1 is stopped or the heating power of the gas burner 1 is reduced, so that the counter 3 Overheating can be prevented.

It is also preferable that the temperature detecting element 5 is mounted at an appropriate position in the gas stove main body 2 by mounting the temperature detecting element 5 via the heat conductive plate 6.
In this case, even if the temperature detecting element 5 is arranged in an empty space in the gas stove main body 2, the temperature of the edge of the opening 4 of the counter 3 can be detected via the heat conductive plate 6, and the opening 4 of the counter 3 can be detected. Even where the temperature near the edge is detected, there is no restriction on where the temperature detecting element 5 is arranged.

Further, when the temperature detecting element 5 detects that the temperature near the edge of the opening 4 of the counter 3 has become higher than a predetermined temperature, the supply of gas to the gas burner 1 is cut off. Is also preferable. It is also preferable that the temperature detecting element 5 detects the temperature near the edge of the opening 4 of the counter 3 and thereby controls the flow rate of the gas supplied to the gas burner 1.

[0009]

Embodiments of the present invention will be described below. As shown in FIG. 3, the system kitchen has a counter 3 mounted on the upper surface of a kitchen cabinet 7. In the upper part of the cabinet 7a for cooking appliances among the cabinets 7 for the kitchen, there is provided a cooking stove storage space having an open front, and a rectangular opening 4 is formed in the counter 3 so as to penetrate vertically. The opening 4 communicates with the cooking space. An oven can be stored as needed below the stove storage space of the cabinet 7a.

The casing 8 of the gas stove main body 2 is formed in the shape of a rectangular box whose upper surface is opened by a side plate 8a on both sides, a front crosspiece, a rear crosspiece, and a bottom plate 8b. A plurality of gas burners 1, grills and the like are provided in the interior of the apparatus. In this example, the gas burner 1 includes a standard thermal gas burner 1a, a large thermal gas burner 1b, and a small thermal gas burner 1c. The casing 8 containing the gas burner 1 and the grill etc. is dropped into the hob housing space from the opening 4 of the counter 3 and held in the hob housing space. It is placed and attached to the four edges of the opening 3. As shown in FIG. 1, the lower surface of the flange 9 is provided with a projection 10 projecting downward as necessary, and when the flange 9 is placed on the four edges of the opening, the lower surface of the flange 9 is partially The heat conduction from the casing 8 side to the counter 3 side is suppressed by making contact. A front plate 11 is attached to the front crosspiece of the casing 8, and the front plate 11 is exposed from an opening on the front surface of the stove storage space. Front panel 11
Is provided with an operation knob 12 and a front door 40 of the grill.

As shown in FIG. 4, the top plate 13 of the gas stove main body 2 is formed in the shape of a rectangular shallow pan, and has a flange 13a on the periphery of the upper end. A hole 14 corresponding to the gas burner 1 is provided at a position corresponding to the gas burner 1 in a bottom plate portion 13b of the top plate 13, and a rising edge 4 slightly rising upward is provided at the edge of the hole 14.
5 is provided over the entire circumference. Top plate 13
Of the front and both side walls 13c of the four side walls 13c
Is provided so as to directly descend from the inner peripheral side of the flange 13a, and the rear side wall portion 13c is provided via the inclined surface portion 15. A step 16 is provided at the upper end of the side wall 13c so as to cover the entire circumference.
7 is provided. An exhaust opening 46 corresponding to an exhaust port in the casing 8 is provided in the inclined surface portion 15 of the top plate 13. The top plate 13 is dropped into the opening 4 from the opening 4 on the upper surface of the counter 3, and the flange 13a
Is mounted on the edge of the opening 4 of the counter 3 from above the flange 9, and the bottom plate 1 of the top plate 13 is mounted.
Burner head 1 of gas burner 1 from hole 14 of 3b
8 is projected upward. The gas burner 1 may be provided on the edge of the hole 14 in the bottom plate 3b of the top plate 13 if necessary.
And a cover ring 19 covering the space between the two.
A thermocouple 20 for detecting the combustion of the gas burner 1 is provided near the burner head 18 of the gas burner 1, and generates a thermoelectromotive force when the combustion is detected. Further, the burner head 18 is provided with a temperature detecting section 21 for detecting the temperature of the bottom of the pot, and when the temperature of the bottom of the pot becomes equal to or higher than a predetermined temperature, the supply of gas to the gas burner 1 is stopped to stop the combustion of the gas burner 1. It has become.

The heat shield frame member 22 mounted along the inner periphery of the side wall 13c of the top plate 13 blocks radiation heat to the side wall 13c, and as shown in FIG. 5, the inner periphery of the side wall 13c. And a flange 22 a is provided at the upper end of the heat shielding frame member 22.
The heat shield frame member 22 is fitted along the inside of the side wall portion 13c, and the flange 22a is
The heat shield frame member 22 is mounted by placing the heat shield frame member 22 on the third step 16. At this time, since the projections 17 are provided on the step portions 16, the flanges 22 a partially come into contact with each other, and a gap is formed between the step portions 16 and the flanges 22 a. Heat conduction to the side is suppressed. With the heat shield frame member 22 attached, the heat shield frame member 22
A gap S is provided so as to cover the entire circumference between the inner periphery of the side wall 13c of the top plate 13 and a large number of air holes 23 communicating with the gap S are formed in the upper part of the side wall 13c in the circumferential direction. I have. An air hole 24 is provided in the upper part of the casing 8 as needed. A step 25 having a substantially L-shaped cross section is provided on the upper part of the heat shield frame member 22 over the entire length in the circumferential direction, and the protrusions 26 are provided on the horizontal and vertical surfaces of the step 25 at appropriate intervals in the circumferential direction. , 27 are provided. Gotoku 30 is Gotoku frame 31
Are formed integrally with the sword 32. In the case of the present example, the Gotoku 30 is composed of a first Gotoku 30a and a second Gotoku 30b. The virtues 30 are mounted on the upper surface opening of the top plate 13 with the virtues frame 31 placed on the step 25. When the virtues frame 31 is placed on the step 25, the virtues frame 31 only partially contacts the projections 26 and 27, so that heat conduction from the virtues 30 to the heat shield frame member 22 can be reduced. An exhaust grill 41 is attached to the exhaust opening 46 of the top plate 13.

A heat conductive plate 6 as shown in FIG. 6 is disposed between the side plates 8a on both sides of the casing 8 and the top plate 13, and the heat conductive plate 6 has a good heat conductivity such as aluminum. It is formed of metal. The horizontal piece 6a at the upper end of the heat conductive plate 6 is mounted on the flange 9 of the casing 8 so as to be overlapped, and the mounting piece 6b on the side of the heat conductive plate 6 is mounted on the casing 8. An element attachment piece 33 is provided at a lower end of the heat conductive plate 6, and a thermostat 5 a as an example of the temperature detection element 5 is attached to a lower surface of the element attachment piece 33. This makes Counter 3
The heat near the edge of the opening 4 is transferred by the heat conducting plate 6, the temperature near the element mounting piece 33 becomes equal to the temperature near the edge of the opening 4, and the temperature near the edge of the opening 4 is detected by the thermostat 5a. Is done. In this manner, the temperature near the edge of the opening 4 can be detected by attaching the temperature detecting element 5 such as the thermostat 5a using the empty space in the casing 8. In the case of this example, the heat conductive plate 6 is a wide plate as shown in FIG. 6, and also functions as a heat shield plate that reflects radiant heat. The heat conduction plate 6 is provided with a plurality of air holes 34 so as not to hinder the flow of air. The heat conduction plate 6
May be a thin band-shaped plate as long as it can transmit heat.

The gas stove body 2 is provided on the counter 3 as described above, and as shown in FIGS.
The upper surface of 2 is almost flush with the upper surface of the counter 3 or the upper surface of the gotoku nail 32 slightly protrudes from the upper surface of the counter 3. The workability of kitchen work can be improved because the height of the pot or the like does not become high and the step of movement between the counter 3 and the upper surface is small. When the height of the gotoku claws 32 is reduced as described above, the surroundings are overheated by the heat generated when the gas burner 1 is burned.
Since the heat-shielding frame member 22 is provided as described above, it is possible to prevent the side-wall portion 13c of the top plate 13 from being overheated due to heat-shielding by this member. At this time, the pressure in the top plate 13 decreases due to the draft action of combustion, and the air in the casing 8 passes through the air holes 23 between the heat shield frame member 22 and the inner periphery of the side wall 13 c of the top plate 13. And flows into the top plate 13 from the gap S. This portion is cooled by the inflow of the air, and the air is smoothly supplied as the secondary air for combustion.
At this time, air is also introduced from the air holes 24 of the casing 8.

When the gas burner 1 is burned and cooked as described above, the temperature near the edge of the opening 4 of the counter 3 (the flange 9 in this example) is detected via the heat conducting plate 6. Detected by element 5. 1 and 7, a thermostat 5a is provided as the temperature detecting element 5, and the switch of the thermostat 5a is turned on when the temperature to be detected exceeds a predetermined temperature (for example, 100 ° C. or more). . Burner head 18 of gas burner 1
The thermocouple 20 is disposed in the vicinity of the thermocouple 20, and a safety valve 36 such as a solenoid valve of the thermocouple 20 and the instrument stopper 35 is provided.
And are connected by a lead wire 37. When the gas burner 1 is burning, the thermocouple 20 is heated by the combustion heat.
The safety valve 36 is opened by the electromotive force to supply gas and continue burning. The lead wire 42 of the thermostat 5a is connected in parallel to the lead wire 37 of the thermocouple 20. When the thermostat 5a becomes higher than a predetermined temperature and the switch is turned on, the thermocouple 2 is turned on.
The electromotive force of 0 is short-circuited and the safety valve 36 is not energized, and the safety valve 36 is shut off, the supply of gas is shut off, and the combustion is stopped.

In the example shown in FIG. 8, a thermistor 5b is used as the temperature detecting element 5, and the temperature detected by the thermistor 5b can be inputted to the control unit 38. The controller 38 can control the flow control valve 39 of the instrument plug. The thermistor 5b may be attached to the heat conducting plate 6 to detect the temperature at which heat is transferred, or to measure the ambient temperature near the opening 4. Thus, for example, when the temperature of the opening 4 of the counter 3 reaches a predetermined temperature as shown in FIG.
The heating power is reduced to keep the temperature of the opening 4 of the counter 3 constant, and even if the heating power is reduced, if the temperature still rises, the supply of gas is completely shut off. Further, as shown in FIG. 9 (b), it is possible to control so that the heating power is reduced to a small value when the temperature of the counter 3 reaches a predetermined temperature, and the heating power is increased when the temperature becomes lower than the predetermined temperature.

When a predetermined temperature is detected, control is performed to reduce the amount of gas so that the heating power is reduced. The time at this time is set as a reference time and a certain time from the reference time (this certain time is a temperature rise gradient from the reference time to the reference time). The temperature after the elapse is detected, the combustion is continued when there is almost no temperature rise from the reference time, and when the temperature rise is large, the gas is discharged. It is also possible to control so as to shut off and stop the combustion, and to return the thermal power to the original state when the temperature is lowered.

In the above embodiment, the temperature detection element 5 is arranged on the side (left side in FIG. 2) of the gas burner 1a of the standard thermal power. However, the side of the gas burner 1b of the large thermal power is shown. (Right side of FIG. 2) is also provided with a temperature detecting element 5 as described above. Further, the temperature detecting element 5 may be provided on the side of the small heat gas burner 1c.

[0019]

According to the first aspect of the present invention, a temperature detecting element for detecting a temperature near an opening edge of a counter is provided in a gas stove main body, and a gas burner is controlled by the temperature detected by the temperature detecting element. When the temperature of the counter rises by detecting the temperature near the opening edge of the counter with a temperature detection element, the combustion of the gas burner is stopped or the heating power of the gas burner is reduced, and the counter is overheated. Therefore, even if a large pot or iron plate is placed on the top plate to cover the top plate, or if they are used off the center of the gas burner, the top surface of the gotoku is placed on the top surface of the counter. Even if it is lowered so that it is almost the same as the surface, it is possible to prevent the opening edge of the counter from being overheated, cracks may occur in the counter due to thermal stress, It is those that can be prevented from or resulting fire of the problem.

In the invention of claim 2 of the present invention,
By mounting the temperature detection element via the heat conduction plate, the temperature detection element is arranged in the proper place in the gas stove main body,
Even if the temperature detecting element is arranged in an empty space in the gas stove main body, the temperature near the opening edge of the counter can be detected through the heat conducting plate, and the temperature near the opening edge of the counter is detected. Even in the case of the device, the temperature detecting element can be easily provided without being restricted by the place where the temperature detecting element is arranged.

Further, according to the invention of claim 3 of the present invention, when the temperature detecting element detects that the temperature near the opening edge of the counter has reached a predetermined temperature or higher, the supply of gas to the bus burner is performed. Because it shuts off, when the temperature of the counter rises, combustion can be stopped to protect the counter. Furthermore, in the invention of claim 4 of the present invention, the temperature detecting element detects the temperature near the opening edge of the counter and controls the flow rate of the gas supplied to the gas burner accordingly. ,
The counter can be protected by preventing overheating of the counter without stopping the combustion of the gas burner.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view in which main parts showing an example of an embodiment of the present invention are enlarged.

FIG. 2 is an overall cross-sectional view of the same with a part thereof omitted;

FIGS. 3A and 3B show a state of being assembled in the system kitchen, in which FIG. 3A is a partially cutaway plan view and FIG.

4A and 4B show a top plate of the above, wherein FIG. 4A is a plan view, FIG. 4B is a front view, and FIG. 4C is a side view.

5A and 5B show the same heat shielding frame member, and FIG.
(B) is a sectional view seen from the front, and (c) is a sectional view seen from the side.

FIG. 6 is a perspective view of the heat conductive plate.

FIG. 7 is a schematic diagram illustrating an electric system according to the embodiment.

FIG. 8 is a schematic diagram illustrating another example of the electric system of the above.

FIGS. 9 (a) and 9 (b) are explanatory diagrams for explaining the above control.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas burner 2 Gas stove main body 3 Counter 4 Opening 5 Temperature detection element 6 Heat conduction plate

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masahisa Sawamura 1-152 Oka, Minami-shi, Minato-ku, Osaka-shi Harman Co., Ltd.

Claims (4)

[Claims] 1. A gas stove in which a gas stove body having a gas burner is fitted into an opening of a counter and a peripheral edge of the gas stove body is placed on an opening edge of the counter.
A gas stove, wherein a temperature detecting element for detecting a temperature near an opening edge of a counter is provided in a gas stove main body, and a gas burner is controlled by the temperature detected by the temperature detecting element. 2. The gas stove according to claim 1, wherein the temperature stabilizing element is mounted at an appropriate position in the main body of the gas stove by mounting the temperature detecting element via a heat conducting plate. 3. The supply of gas to a gas burner is shut off when the temperature detecting element detects that the temperature near the opening edge of the counter has exceeded a predetermined temperature. The gas stove according to claim 1 or 2. 4. The flow rate of a gas supplied to a gas burner is controlled by detecting a temperature near an opening edge of a counter by a temperature detection element. Gas stove.