JPH1073256A - Gas cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate a continuous, smooth, and wide thermal power range through simple structure by a method wherein an on-off valve is provided to close a communication hole between lower and upper uniform pressure chambers, and a gas cookere is switched from a state wherein fuel gas is fed to the two uniform pressure chambers to a state wherein fuel gas is fed only to the lower uniform pressure chamber. SOLUTION: A first burner head 32 is provided with a first burner port train 38 and a lower uniform pressure chamber 45 and a second burner head 33 is provided on the upper surface of the outer periphery of a first burner head 32 with an upper uniform pressure chamber 46 and a second burner port train 39. A switch part 27 is provided with a switch shaft 27c extending through a burner body 41 and vertically slidable, and at its upper end with an on-off valve 23 of heat resisting rubber, in the middle of a shaft with a spring support 27a, and at a lower end with an interlocking support plate 27b. The switch shaft 27c closes an opening hole 9 in an upper position and opens the opening hole 9 in a lower position with the aid of the on-off valve 23 through the force of a spring 3 supported at a spring support plate 29. Further, an annular rubber packing 2 is arranged at a slide part between the switch shaft 27c and a mixing pipe 4 to prevent leakage of gas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas cooker provided with a gas amount regulator.

[0002]

2. Description of the Related Art Conventionally, when cooking various dishes by heating, it is necessary to adjust a wide range of heating power according to the cooking.
A single burner cannot cover the wide range of heat power adjustment required for cooking, so it was designed to provide a large burner designed for high heat and a low heat suitable for stewed dishes (hereinafter referred to as low heat). 2 with small burners on left and right
Mouth cookers are known. In other words, when the large burner is squeezing the gas, it cannot extinguish the flame in the flame opening and extinguishes the fire, and when the small burner burns with high heat, incomplete combustion occurs. Different burners are used for different dishes. As shown in FIG. 12, a child burner 35 designed for low heat is provided in the center and a parent burner 31 designed for high heat is provided on the outer periphery of the child burner 35 in combination with each other. Is known.

[0003]

However, it is troublesome and inconvenient for a user to use a large burner or a small burner depending on the cooking in the former two-port cooker. The latter parent-child burner 30 is a combination of independent large burners and small burners, and has a wide adjustment range of thermal power, but independently supplies fuel gas to each burner.
Since one switch and two nozzles are required, the structure is complicated, and each of them has a burner body and a burner head, so that the number of parts is increased and productivity is low. Moreover, cooking by adjusting the heat of the two burners is troublesome and inconvenient for the user. Therefore, there is a method in which the amount of gas is reduced by one operation knob to switch the state in which both the large and small burners are ignited to the state in which only the small burner is ignited, and the thermal power is adjusted, as shown in FIG. At the switching point B1, the supply gas amount suddenly changed from b1 to a1, so that it was not easy to use during cooking. Further, since the flames 31a and 35a of the parent and child burners are separated, both flames 31a and 35a are separated.
The fire between a and 35a is poor. Moreover, since there is no place where the thermocouple 36 of the extinguishing safety device can be detected for both the flames 31a and 35a of the parent and child, the flame 35 of the child burner 35 is not used.
Since it was facing only a, the misfire of the parent burner 31 could not be detected. In order to detect the misfire of the parent burner 31 by ignoring this, there is a problem such that another thermocouple is required for the flame 31a of the parent burner 31.

[0004] The gas cooker of the present invention solves the above problems,
It is an object of the present invention to provide a gas cooker which can continuously and smoothly adjust a wide heating power range with a simple structure.

[0005]

According to a first aspect of the present invention, there is provided a gas cooker comprising: a burner for burning fuel gas; and a gas amount adjusting means for adjusting an amount of gas supplied to the burner. In the gas cooker provided with the above, the burner is provided vertically above and below the lower pressure equalization chamber and the upper pressure equalization chamber, each of which has a plurality of flame ports arranged on the outer peripheral edge thereof, and closes the communication hole. When an on-off valve is provided and the gas amount adjusting means is operated to reduce the gas amount to a predetermined gas amount, the on-off valve is closed and the state is supplied to both the pressure equalizing chambers, and the state is supplied only to the lower pressure equalizing chamber. The gist of the present invention is to provide switching means for switching.

A gas cooker according to a second aspect of the present invention which solves the above-mentioned problem is characterized in that the rows of flame ports of the two equalizing chambers are formed at vertically adjacent positions.

According to a third aspect of the present invention, there is provided a gas cooker, wherein the row of flame ports of the lower pressure equalizing chamber has an area of each flame port larger than that of the upper pressure equalizing chamber. The gist is to make it smaller.

According to a fourth aspect of the present invention, there is provided a gas cooker, wherein the gas amount adjusting means includes a heating power limiting means for lowering a maximum value of the adjusting range, and the adjusting range is controlled by the heating power limiting means. The point is that the thermal power limiting means and the switching means are linked so that the fuel gas is switched to a state in which the fuel gas is supplied only to the lower pressure equalizing chamber when the maximum value is decreased.

In the gas cooker according to the first aspect of the present invention having the above structure, when the gas supply amount to the burner is reduced to a predetermined gas amount by operating the gas amount adjustment means, the switching valve opens and closes the switching valve. The communication hole is closed to switch from a state in which the fuel gas is supplied to both the pressure equalizing chambers to a state in which the fuel gas is supplied only to the lower pressure equalizing chamber. Therefore, the lower combustion limit gas amount supplied to the burner can be reduced to the lower combustion limit gas amount of one (lower) row of flame ports.

[0010] In the gas cooker according to the second aspect of the present invention having the above structure, the upper and lower pressure equalizing chambers are arranged at the upper and lower adjacent positions of the flame ports, so that a fire transfer at the time of ignition is ensured. Can be done.

[0011] In the gas cooker according to the third aspect of the present invention having the above-described structure, the flame row of the lower pressure equalizing chamber to which the gas is finally supplied has a larger number of flame ports than the flame port row of the upper pressure equalizing chamber. Since the area of the mouth is reduced, the flame holding property is improved and the combustion can be performed with a smaller amount of combustion.

In the gas cooker according to the fourth aspect of the present invention having the above-described structure, the maximum value of the adjustment range of the gas amount adjusting means is reduced by the heating power limiting means, so that the flame of the burner overflows from the side of the cooking pot. It will not burn with a big flame. Therefore, it is possible to prevent a sleeve fire or a burn, such as a fire that overflows from the side of the cooking pot during cooking, which burns the sleeve of the user and burns the sleeve. Further, only when the maximum value of the adjustment range of the gas amount adjusting means is reduced, the state is switched to a state in which the fuel gas is supplied only to the lower pressure equalizing chamber. Therefore, a large amount of gas having a high heating power is supplied to the lower pressure equalizing chamber, and the flame in the row of flame ports does not incompletely burn.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, a preferred embodiment of the gas cooker of the present invention will be described below. FIG. 1 is a schematic configuration diagram of a gas stove as a first embodiment. The gas stove of the present embodiment is roughly divided into an ignition unit 10 for performing an ignition operation and a combustion unit 20 for burning fuel gas. Ignition part 10
Is a front operation panel 17, a push-type operation button 11, and a magnet safety valve 1 for opening and closing a fuel gas flow path.
2 and a main valve 1 that opens and closes a fuel gas flow path downstream thereof
3, a spindle 18 which inserts the main valve 13 in the middle and pushes the magnet safety valve 12 at the tip, and a needle valve 2 which further adjusts the flow rate of the fuel gas to the combustion section 20 downstream thereof.
4, and a heating power adjustment knob 15 for operating the needle valve 24 to adjust the heating power of the burner flame.

The combustion section 20 includes a comb burner 40 for burning the fuel gas, a nozzle 21 for ejecting the fuel gas to the comb burner 40, and an interlocking section 25 for interlocking a switching shaft 27c and a heating power adjustment knob 15 described later. And an electrode 26 that ignites the mixed gas by applying a high voltage and discharging, and a thermocouple 28 that monitors the flame of the stove burner 40.

The stove burner 40 is a hot forged product such as a brass body 41 for mixing a fuel gas and primary air, and a brass or the like which forms a first flame port row 38 when mounted on the burner body 41. An annular first burner head 32 composed of a first burner head 32 and a second burner port row 39 mounted on the first burner head 32
A second disc burner head 33 made of a hot forged product such as brass and the like, and a switching section 27 provided vertically at the center of both burner heads.

The burner main body 41 has a Venturi-shaped L-shaped mixing pipe 4 for mixing the fuel gas supplied from the nozzle 21 and the primary air sucked by the jet of the nozzle 21, and the mixing pipe 4. An annular head receiver 6 is formed in an umbrella shape around the lower part of the upper end. Further, a plurality of locking portions 8 a having round holes for locking the first burner head 32 are provided on the upper surface of the head receiver 6.

The first burner head 32 is formed in a disk shape, has a number of comb-shaped grooves on the periphery, and has a burner body 41.
By mounting on the upper surface of the annular head receiver 6, a large number of first flame port rows 38 are formed on the peripheral edge, and the passage holes 5 and the lower pressure equalizing chamber 45 are formed. A cylindrical portion 4 having a central opening hole 9 having the same diameter as the inner diameter of the upper end of the mixing pipe 4 is provided at the center.
7 is opposed to the upper end face of the mixing tube 4 via the passage hole 5. Also, a plurality of bar-shaped locking pieces 7a for positioning with the burner main body 41 are provided on the lower surface at a plurality of positions, and the locking portions 8a of the burner main body are provided.
Plugged in. A plurality of locking portions 8b having round holes for locking the second burner head are provided on the upper surface thereof.

The second burner head 33 is formed in a disk shape, has a number of comb-shaped grooves on the periphery, and is mounted on the outer peripheral upper surface of the first burner head 32 to form an upper pressure equalizing chamber 46.
And a number of second flame port arrays 39 are formed on the periphery. Also,
A plurality of bar-shaped locking pieces 7b for locking the second burner head are provided on the lower surface inside the flame port. Also, the first
Comparing the individual flame outlets of the burner array 38 and the second burner array 39, as shown in FIG.
It is set smaller than the flame port of the flame port array 39. In addition, the total flame area is set to be smaller in the first flame row 38 than in the first flame row.

The switching section 27 is provided with a switching shaft 27c which is slidable up and down through the burner main body 41, an opening / closing valve 23 made of heat-resistant rubber at the upper end thereof, and a spring provided in the middle of the shaft. It is composed of a receiver 27a and an interlocking support plate 27b provided at the lower end, and is urged upward by the spring 3 supported by the spring support plate 29. Therefore, the switching shaft 27
The opening / closing valve 23 can be set to close the opening 9 when c is in the upper position, and to open the opening 9 in the lower position. Also, the switching shaft 27c
A ring-shaped rubber packing 2 is provided on the sliding portion between
Is provided to prevent gas leakage.

The interlocking section 25 has the interlocking lever 1 set to swing about a fulcrum 48, one end of which is fixed to the heating power adjustment knob shaft 15a and the other end of which is connected to the interlocking shaft support plate 27b of the switching section 27. It is placed. Thermal power adjustment knob shaft 15a
A knob shaft fulcrum 49 is provided at an intermediate position thereof, and the tip portion is set so as to rotate in the vertical direction with the fulcrum 49 as a base point. The other end is fixed to the needle valve 24 and is set so as to rotate in the left-right direction together with the needle valve 24. As shown in FIG. 2, the heating power adjustment knob 15 formed at the tip of the heating power adjustment knob shaft 15a is set so that it can be moved up, down, left and right along a slit 42 provided on the operation panel 17 in two stages. ing.

Next, the operation of the gas cooker of this embodiment will be described. When the operation button 11 is depressed, the button shaft 16 is depressed via the ignition lever 14 behind the operation button 11 and the spindle 1 is pushed.
8 slides to open the main valve 13 and the magnet safety valve 12 in the fuel gas passage, and turns on an igniter (not shown) interlocked with the movement of the button shaft 16. Then, electricity is supplied from a dry battery (not shown), and discharge is performed at the electrode 26 by the function of the igniter. Further, the mixed gas of the fuel gas and the primary air passes through the mixing pipe 4 and the lower pressure equalizing chamber 45,
It is supplied to the upper pressure equalizing chamber 46 and is ejected from the first flame port row 38 and the second flame port row 39. Then, the first igniter row 38 is ignited by the discharge of the igniter, and the fire is transferred to the second flame port row 39.
After that, even if the operation button 11 is released, the button shaft 16 is locked in the middle of the retreat, and the main valve 13 is kept open. At the same time, the magnet safety valve 12 is opened and held by the electromotive force of the thermocouple 28 due to the combustion heat, so that the fuel gas is continuously supplied and the combustion continues.

Then, if necessary for cooking, the heating power adjusting knob 15 is operated left and right to adjust the fuel gas flow rate by the needle valve 24. For example, as shown in FIG. Make adjustments. Heat adjustment knob 1
5 is set to the high flame C at the upper stage of the slit 42, the interlocking lever 1 interlocked with the heating power adjustment knob 15
As shown by the dotted line, the interlocking shaft support plate 27b is pushed downward to support the open / close valve 23 in the open state. Accordingly, gas is supplied to both the first burner port array 38 and the second burner port row 39, and as shown in FIG. When the heating power adjusting knob 15 is set from the upper stage of the slit 42 of the middle fire B1 to the lower stage of the middle fire B2, the interlocking lever 1 swings and the end mounted on the interlocking shaft support plate 27b rotates upward, and the spring The switching shaft 27c moves upward by the urging force of 3, and the on-off valve 23 closes the opening 9 of the upper pressure equalizing chamber 46, so that gas is supplied only to the first flame port row 38. In other words, the flame row of the burner 40 is switched from two rows to one row in conjunction with the heating power adjustment knob 15, so that the flame is extinguished even if the supply gas amount is reduced from a high flame to a toro flame with one burner 40. It does not happen. Therefore, it is not necessary to adjust the heating power such as switching by providing a plurality of burners and nozzles, and it is possible to continuously adjust the gas amount from high heat to toro fire with one operation knob.

Next, the transition of the amount of air-fuel mixture supplied to each row of flame ports at the time of adjusting the thermal power will be described with reference to FIG. When the gas supply adjusting knob 15 is operated to reduce the supply gas amount to the burner from the maximum supply gas amount c to the minimum supply gas amount a as shown in transition (a), the gas is supplied to the upper pressure equalizing chamber 46. As shown in the transition (b), the amount of gas to be supplied decreases uniformly until the middle fire B of the knob is reached, but when the middle fire B position is reached, the on-off valve 23 closes and the air-fuel mixture becomes lower equalized. The mixture flows only into the chamber 45, the mixture flow into the upper pressure equalizing chamber 46 is stopped, and the combustion flame in the second flame row 39 is extinguished. on the other hand,
As shown in a transition (C), the gas amount supplied to the lower pressure equalizing chamber 45 gradually decreases the supplied gas amount, and when the knob reaches the middle fire B position, the gas supply to the upper pressure equalizing chamber 46 is reduced. Since the operation stops and all of the supply gas from the nozzle 21 flows in, the supply gas amount of the first flame port row 38 increases from the point a to the point b. Therefore, by operating the gas amount adjusting knob 15 from the point B to the point A to further reduce the supply gas amount, the gas amount of the combustion flame in the first flame port row 38 is reduced to the extinguishing limit gas amount, that is, the minimum supply gas amount a. be able to. Further, the position of the gas amount adjustment knob 15 at that time is set to the minimum low heat position A.
Since the flame is not extinguished due to excessive squeezing, the amount of gas that can be cooked can be reduced.

The state of the flame is as shown in FIG.
When the gas amount adjustment knob 15 is at the point C of the high heat position, the first
Both the flame row 38 and the second flame row 39 burn with a large flame, and when the knob 15 is squeezed, the flames of both the flame ports gradually decrease until just before the predetermined point B, but until the point B. When squeezed, the flame in the second row of flame ports 39 extinguishes, and at the same time, the flame in the first row of flame ports 38 increases. Then, when the knob 15 is further squeezed to the low-fire gas amount at the point A, the flame in the first flame row 38 gradually decreases while the flame in the second flame row 39 is extinguished.

Conversely, when the gas amount adjusting knob 15 is adjusted from the low fire point A to the high fire side, the on-off valve 23 opens at the middle fire position B and flows into the upper pressure equalizing chamber 46, so that the second flame port row 39 From the first flame port row 38 and ignite. In addition, the first burner port row 38 and the second burner port row 39 are vertically close to each other, so that the fire is satisfactorily performed. Then, the flames of both the flame outlets gradually increase to the point C of the high flame.

As described above, according to the gas cooker of the first embodiment, the amount of gas supplied to the stove burner 40 is adjusted from the large amount to the small amount by the gas amount adjusting knob 15 to achieve the predetermined amount b of supplied gas. When the temperature reached, the supply of the air-fuel mixture to the upper pressure equalizing chamber 46 was stopped, and the air-fuel mixture was supplied only to the lower pressure equalizing chamber 45. Therefore, as shown in FIG. Over a wide range (maximum c to minimum a) obtained by combining the adjustment ranges of the combustion amounts of the first flame port row 38 and the second flame port row 39,
Adjustable from high heat to low heat. Moreover, the lower pressure equalizing chamber 4
The first burner row 38 of No. 5 reduces the entire burner area to the second burner row 39.
Since the flame area is smaller than that of the above, and each flame port is formed by a small flame port, the combustion limit gas amount can be further reduced. Therefore, even a high-performance burner can squeeze to a low heat, and can be cooked on the same burner from stir-fried noodles such as fried noodles and Chinese food that require strong heat, to simmered food using a low heat. Therefore, it is not necessary to combine large and small burners as in the prior art and use them individually, and the supply gas amount can be adjusted continuously and smoothly with one heating power adjustment knob 15, so that cooking can be performed. The required heating power can be reliably obtained, and the usability is good.

The flame igniting the air-fuel mixture ejected from the first burner array 38 ignites over the entire circumference of the first burner array 38, and also transfers to the second burner array 39, thereby igniting the flame. Form.
The fire transfer at this time is very good because two upper and lower rows of flame ports are formed, and the flames of each flame port are adjacent to each other vertically, horizontally and vertically. Further, two independent switches and nozzles, such as a parent and child burner, are not required, and the number of parts may be reduced with a simple configuration, thereby improving productivity.

Next, a gas stove as a second embodiment will be described with reference to FIG. This embodiment is common to the first embodiment except for the interlocking portion, the gas amount adjustment restriction lever, and the heating power adjustment knob. The interlocking section 25A includes a gas amount restriction knob 19 for lowering the maximum value of the gas amount adjustment range of the thermal power adjustment knob 15, a first lever 1A, and a second lever 1B. The gas amount control knob 19 is formed integrally with the first lever 1A and fitted in a slit 42A provided in the operation panel 17. The first lever 1A is
It is set so as to swing about the fulcrum 49A, a knob 19 is formed at one end, and the other end is located below the end of the second lever 1B. Further, a stopper 22 for restricting the movement of the heating power adjustment knob shaft 15a is provided vertically near the knob 19. The slit 42A provided on the operation panel 17 has horizontal grooves at the upper and lower ends of the vertical groove, as shown in FIG. The second lever 1B has one end mounted on the first lever 1A and the other end mounted on the switching shaft support plate 27b.

A description will be given of a gas supply state to the stove burner 40 and a gas amount adjustment state when the gas amount restriction knob 19 is set at the standard heating power position above the slit 42A. Since the force from the second lever 1B is not applied to the interlock lever support plate 27b, the switching shaft 27c
Is pressed upward by the urging force of the spring 3, and the on-off valve 2
3 closes the entrance of the upper pressure equalizing chamber 46 and gas is supplied only to the first flame port row 38. Further, as for the heating power adjustment knob 15A, the stopper 22 of the gas amount control knob 19 is fixed at a position above the heating power adjustment knob shaft 15B, and as shown in FIGS. 9 and 10, the heating power adjustment knob 15A is positioned within the gas amount adjustment range. It is set to a state where it does not move beyond the position. That is, the gas amount adjustment range by the thermal power adjustment knob 15A is limited to a range from medium to weak, and the on-off valve 23 is
An excessive amount of gas is prevented from being supplied to the cooking stove burner 40 when the inlet of the air conditioner is closed. Conversely, a case will be described in which the gas amount restriction knob 19 is set to the position at the time of high heat power in order to perform a stir-fry dish or the like that requires a high heat gas amount. The interlocking shaft support plate 27b is pushed downward by the second interlocking lever 1B rotated by the first lever 1A against the urging force of the spring 3, and the switching shaft 27c and the on-off valve 23
Moves downward to support the opening hole 9 in an open state. Since the gas is supplied to both the first flame port array 38 and the second flame port array 39, even if the heating power adjustment range is maximized, the flame of the high heating power is formed and burned without any trouble. Further, in the heating power adjustment knob 15A, the stopper 22 of the gas amount restriction knob 19 is fixed at a position below the heating power adjustment knob shaft 15B, and the movement of the heating power adjustment knob 15A is not restricted as shown in FIGS. The heating power adjustment knob 15A can be adjusted over the entire adjustment range from strong to weak.

As described above, according to the gas stove of the second embodiment, the heating power adjustment knob 15A is provided with the gas amount restriction knob 19 for lowering the maximum value of the adjustment range. It is set so that high heat cannot be used unless switched. Therefore, it is possible to prevent a sleeve fire or a burn in which the sleeve is scorched by the flame of the high heat which overflows from the cooking pot due to lack of user's attention. Further, since the gas amount control knob 19 and the switching shaft 27c are linked, the maximum value of the gas amount adjustment range is limited at the same time as switching to the lower flame port row, and only the one (lower) flame port row has a strong heating power. Is prevented from being supplied.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention. It is.

[0032]

As described in detail above, claim 1 of the present invention
According to the described gas cooker, the fuel gas is switched from the state in which the fuel gas is supplied to both the pressure equalizing chambers to the state in which the fuel gas is supplied only to the lower pressure equalizing chamber with the on-off valve, so that the gas cooker is independent like the parent-child burner The need for two switches and nozzles is eliminated and the usability is improved, and a wide heating power adjustment range can be continuously obtained with a simple configuration.

According to the gas cooker of the second aspect of the present invention, the upper and lower pressure equalizing chambers are arranged at the upper and lower positions in the vicinity of the upper and lower pressure equalizing chambers. Is improved.

According to the gas cooker according to the third aspect of the present invention, the flame array of the lower pressure equalizing chamber reduces the area of each flame and burns with a smaller amount of combustion. Cooking performance of boiled food etc. is improved.

Further, according to the gas cooker according to the fourth aspect of the present invention, since the maximum value of the adjustment range can be reduced by providing the heating power limiting means, by setting the heating power limiting means, Sleeve fire or burns, which burns the sleeves due to strong flames overflowing from the cooking pot due to lack of user attention, can be prevented, and safety can be improved. Further, since the thermal power limiting means and the switching means are linked, it is possible to prevent an excessive amount of gas from being supplied to only one of the flame port rows, and it is safe.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a gas stove as a first embodiment.

FIG. 2 is an explanatory diagram showing a movement of a heating power adjustment knob as the first embodiment.

FIG. 3 is an explanatory diagram showing a relationship between a position of a heating power adjustment knob and a flame as the first embodiment.

FIG. 4 is an explanatory diagram showing a relationship between a position of a heating power adjustment knob and a supply gas amount as the first embodiment.

FIG. 5 is a side view of a flame outlet as the first embodiment.

FIG. 6 is a schematic configuration diagram of a gas stove as a second embodiment.

FIG. 7 is an explanatory diagram showing a relationship between a heating power adjustment knob and a stopper according to a second embodiment.

FIG. 8 is an explanatory diagram showing a heating power adjustment range of a heating power adjustment knob as a second embodiment.

FIG. 9 is an explanatory diagram showing a relationship between a thermal power adjustment knob and a stopper as a second embodiment.

FIG. 10 is an explanatory diagram showing a heating power adjustment range of a heating power adjustment knob as a second embodiment.

FIG. 11 is an explanatory diagram showing the movement of a gas amount limiting knob as a second embodiment.

FIG. 12 is a schematic configuration diagram of a gas stove burner (parent-child burner) as a conventional example.

FIG. 13 is an explanatory diagram showing a relationship between a position of a heating power adjustment knob and a supply gas amount as a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Interlocking lever 1A ... 1st lever 1B ... 2nd lever 4 ... Mixing pipe 5 ... Passage hole 6 ... Head receiving 7a, 7b ... Locking piece 8a, 8b ... Locking part 9 ... Opening hole 10 ... Ignition part 15, Reference numeral 15A: Thermal power adjustment knob 15a, 15B: Thermal power adjustment knob shaft 17: Operation panel 19: Gas amount restriction knob 20: Combustion unit 22: Stopper 23 ... Open / close valve 24 ... Needle valve 25 ... Interlocking unit 27 ... Switching unit 27a ... Spring receiver 27b ... Interlocking shaft support plate 27c ... Switching shaft 29 ... Spring support plate 32 ... First burner head 33 ... Second burner head 38 ... First burner row 39 ... Second burner row 40 ... Burner burner 41 ... Burner body 45: Lower pressure equalizing chamber 46: Upper pressure equalizing chamber 48: Lever fulcrum 48A: First lever fulcrum 48B ... Second lever fulcrum 49 ... Knob shaft fulcrum

Claims (4)

[Claims] 1. A gas cooker comprising: a burner for burning fuel gas; and gas amount adjusting means for adjusting an amount of gas supplied to the burner, wherein each of the burners has a large number of flame ports arranged on an outer peripheral edge thereof. The lower pressure equalization chamber and the upper pressure equalization chamber are communicated with the communication holes through the communication holes and provided vertically, and provided with an opening / closing valve that closes the communication holes, when the gas amount adjusting means is operated to reduce the gas amount to a predetermined gas amount. A gas cooking device comprising a switching means for switching from a state in which the on-off valve is closed to supply the pressure to both of the pressure equalizing chambers to a state in which the gas is supplied to only the lower pressure equalizing chamber. 2. The gas cooker according to claim 1, wherein the rows of the flame ports of the pressure equalizing chambers are formed in vertically adjacent positions. 3. The gas cooking apparatus according to claim 1, wherein the area of each of the flame ports of the lower pressure equalizing chamber is smaller than the area of the flame ports of the upper pressure equalizing chamber. vessel. 4. The gas amount adjusting means includes thermal power limiting means for lowering the maximum value of the adjustment range, and when the maximum value of the adjustment range is lowered, fuel gas is supplied only to the lower pressure equalizing chamber. 2. The heating power limiting unit and the switching unit are linked so as to switch to a state.
The gas cooker according to any one of to 3 above.