JP2021060185A - Gas cooking stove - Google Patents

Abstract

To provide a gas cooking stove that avoids letting a user feel uneasy as much as possible with a flame overflow when a stove burner is ignited.SOLUTION: A burner head part 21 of a stove burner 2 has a plurality of sectioned head regions 211-214 sectioned in a circumferential direction, and comprises valve means capable of supplying a fuel gas to those sectioned head regions individually. For ignition, the valve means supplies the fuel gas to the sectioned head region 213 present at a rear part of the burner head part 21 first to ignite it. Even if the ignition is done with relatively large flames in the rear sectioned head region 213 owing to ignition delay, no flame overflows toward a front edge of a top plate 4. Therefore, it is possible to avoid the situation where flames approach a user who stands in front of the top plate 4 to cause the user to feel uneasy.SELECTED DRAWING: Figure 2

Description

The present invention comprises a stove burner having a burner head portion on which a large number of flame openings are formed facing the burner opening opened on the top plate, and a trivet installed on the top plate so as to surround the burner opening. Regarding the gas stove to prepare.

Conventionally, in this kind of gas stove, a means for detecting the size of the cooking container placed on the trivet is provided, and when the cooking container has a predetermined diameter or less, the maximum value of the adjustment range of the heating power adjusting means of the stove is lowered. (See, for example, Patent Document 1). According to this, when a small cooking container is placed on the trivet, it is possible to prevent the flame of the stove burner from overflowing from the bottom of the cooking container to the outside, causing anxiety to the user. it can.

However, even in such a gas stove, a relatively large flame may ignite due to a delay in ignition due to a spark failure at the ignition electrode, resulting in a flame overflow. Then, when a flame overflow occurs toward the front edge of the top plate or the lateral side edge of the top plate near the stove burner, the user standing in front of the top plate or the side of the top plate is reached for work. The flame approaches the user who is doing it, giving the user a feeling of anxiety.

Japanese Unexamined Patent Publication No. 9-53827

In view of the above points, it is an object of the present invention to provide a gas stove that can avoid causing anxiety to the user due to overflow of flame when the stove burner is ignited.

In order to solve the above problems, the first invention of the present application surrounds a stove burner having a burner head portion on which a large number of flame ports are formed facing the burner opening opened on the top plate, and the burner opening. In the gas stove provided with the trivet installed on the top plate, the burner head portion has a plurality of compartmentalized head regions divided in the circumferential direction, and fuel gas can be individually supplied to these plurality of compartmentalized head regions. When a single partition head region exists in the part of the burner head portion farthest from the front edge of the top plate with valve means, this partition head region is set as the first ignition partition head region and the front edge of the top plate is used. When there are two compartmentalized head regions laterally adjacent to each other in the part of the burner head portion farthest from the burner head portion, the lateral side edge of the top plate closest to the center of the burner head portion among these two compartmentalized head regions. The division head region farther from the first ignition division head region is used as the first ignition division head region, and at the time of ignition, the fuel gas is first supplied to the first ignition division head region by the valve means to ignite.

Further, in the second invention of the present application, a stove burner having a burner head portion on which a large number of flame openings are formed facing the burner opening opened in the top plate and a stove burner installed on the top plate so as to surround the burner opening. In a gas stove having the five virtues to be used, the stove burner is composed of a child burner head portion and a parent-child burner having an annular parent burner head portion surrounding the child burner head portion as a burner head portion. The parent burner head portion has a plurality of compartmentalized head regions divided in the circumferential direction, and the valve means for the parent burner capable of individually supplying fuel gas to these plurality of compartmentalized head regions, and the fuel gas to the child burner head portion. It is equipped with a valve means for a child burner capable of supplying a fuel and a flame detecting means for detecting a flame in the child burner head portion, and a single partition head area is provided in the portion of the parent burner head portion farthest from the front edge of the top plate. If it exists, this compartmentalized head region is set as the first ignition compartmentalized head region, and if two compartmentalized head regions exist laterally adjacent to the portion of the parent burner head portion farthest from the front edge of the top plate. Of these two compartmentalized head regions, the compartmentalized head region farthest from the lateral side edge of the top plate closest to the center of the burner head portion is set as the first ignition compartmentalized head region, and at the time of ignition, first, the valve means for the child burner is used. Fuel gas is supplied to the child burner head portion to ignite the child burner head portion, and after the flame of the child burner head portion is detected by the flame detecting means, the first of the plurality of divided head regions of the parent burner head portion is detected by the valve means for the parent burner. It is characterized in that the fuel gas is first supplied to the ignition division head region.

According to the present invention (the first invention and the second invention), the front edge of the top plate and the top plate among a plurality of divided head regions divided in the circumferential direction of the burner head portion (the parent burner head portion in the second invention). The area far away from the lateral side edge close to the burner head portion of the above is the first ignition division head region, and at the time of ignition, fuel gas is first supplied to the first ignition division head region and ignited. Therefore, even if the ignition is delayed and the first ignition division head region is ignited with a relatively large flame, the flame does not overflow toward the front edge of the top plate or the lateral side edge near the burner head portion. Therefore, it is possible to prevent the flame from approaching the user standing in front of the top plate or the user who is working by reaching to the side of the top plate, which causes anxiety to the user.

Further, in the case where the burner head portion has at least three divided head regions divided in the circumferential direction, when a single divided head region exists in the portion of the burner head portion farthest from the front edge of the top plate, the burner head portion has a single divided head region. Of the two compartmentalized head regions adjacent to one side in the lateral direction and the other side of this compartmentalized head region, the compartmentalized head region farthest from the lateral side edge of the top plate closest to the center of the burner head portion is the second ignition compartmentalized head. When there are two compartmentalized head regions laterally adjacent to each other in the portion of the burner head portion farthest from the front edge of the top plate as an region, the most of these two compartmentalized head regions is the most from the center of the burner head portion. The division head region closer to the lateral side edge of the near top plate is used as the second ignition division head region, and at the time of ignition, fuel gas is supplied to the second ignition division head region next to the first ignition division head region by the valve means. It is desirable to do. According to this, the division head region close to the front edge of the top plate among the plurality of division head regions is ignited after the second ignition division head region. Therefore, it is possible to gain time for the user to leave the front edge of the top plate before igniting the dividing head region near the front edge of the top plate. Therefore, even if the flame overflows when igniting in the divided head region near the front edge of the top plate, the flame does not approach the user away from the front edge of the top plate, and the anxiety given to the user can be reduced.

Further, in this case, a flame detecting means for detecting a flame in the first ignition dividing head region is provided, and at the time of ignition, the flame detecting means detects a flame in the first ignition dividing head region and then burns in the second ignition dividing head region. It is desirable to supply gas. According to this, it is possible to prevent ignition by a relatively large flame generated when fuel gas is supplied to the second ignition division head region in a non-ignition state in the first ignition division head region.

Further, in the present invention, it is desirable that a flame port is formed on the upper surface of the burner head portion. According to this, as compared with the case where the flame port is formed on the outer peripheral surface of the burner head portion, the flame overflow is less likely to occur, and it is possible to more effectively avoid giving anxiety to the user.

The perspective view which shows the installation state of the gas stove of 1st Embodiment of this invention. The enlarged plan view of the installation part of the left side stove burner of the gas stove of 1st Embodiment. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. (A) A perspective view seen from diagonally below the upper head member of the left stove burner of the gas stove of the first embodiment, (b) seen from diagonally above the lower head member of the left stove burner of the gas stove of the first embodiment and the burner holder. Perspective view. The enlarged plan view of the installation part of the right side stove burner of the gas stove of 1st Embodiment. FIG. 5 is a cross-sectional view taken along the line VI-VI of FIG. (A) A perspective view seen from diagonally below the upper head member of the right side stove burner of the gas stove of the first embodiment, (b) Seen from diagonally above the lower head member of the right side stove burner of the gas stove of the first embodiment and the burner holder. Perspective view. The perspective view seen from the diagonally lower side of the range hood provided above the installation part of the gas stove of 1st Embodiment. The plan view of the main part of the gas stove of the 2nd Embodiment corresponding to FIG. The plan view of the main part of the gas stove of the 3rd Embodiment corresponding to FIG. The plan view of the main part of the gas stove of 4th Embodiment corresponding to FIG. The plan view of the main part of the gas stove of 5th Embodiment corresponding to FIG. The plan view of the main part of the gas stove of the sixth embodiment corresponding to FIG. The plan view of the main part of the gas stove of the 7th Embodiment corresponding to FIG.

With reference to FIG. 1, the gas stove according to the embodiment of the present invention is a built-in type stove in which the stove body 1 is arranged so as to be dropped into the stove opening CTa formed in the counter top CT of the system kitchen, and two stoves on the left and right are used. It has a few burners. As shown in FIGS. 2 and 3, the left stove burner 2 has a burner head portion 21 facing the burner _{opening 41 1} opened in the left half of the top plate 4 covering the open upper surface of the stove body 1. ing. Right stove burner 3 also, FIG. 5, as shown in FIG. 6, has a burner head portion 31 facing the burner opening 41 ₂ opened to the right half portion of the top plate 4. Further, gas stove has a trivet ₅ 1, _{5 2} installed on the top plate 4 so as to surround each burner openings ₄₁ 1, 41 _2. Incidentally, the top plate 4, a ring member ₄₂ 1, 42 ₂ for closing the gap between the burner head 21, 31 of each burner openings ₄₁ 1, 41 ₂ and the stove burners 2 and 3 are mounted There is. Further, the operation panel 11 on the front surface of the stove body 1 is provided with _{left and right point fire extinguishing buttons 12 1} and 12 _{2 for the left and right stove burners 2 and 3.} Each point fire extinguishing button 12 ₁ and 12 ₂ can also instruct the thermal power of each stove burner 2 and 3 by its rotation operation.

Referring to FIG. 4, the burner head portion 21 of the left side of the stove burner 2 includes a first to fourth four divided head region 21 ₁ to 21 ₄ which are divided in the circumferential direction. Specifically, the burner head portion 21 is composed of an annular lower head member 22 and an annular upper head member 23 installed on the lower head member 22. Four radial ribs 221 are erected on the upper surface of the lower head member 22 at equal intervals in the circumferential direction. Further, four radial ribs 231 are vertically provided on the lower surface of the upper head member 23 at equal intervals in the circumferential direction. Then, by bringing the lower edge of each radial rib 231 of the upper head member 23 into contact with the upper edge of each radial rib 221 of the lower head member 22, the burner head portion 21 is brought into the front first division head region 21 ₁ . , a second divided head region 21 ₂ of the left, the third divided head region 21 ₃ of the rear, are divided into the fourth divided head region 21 _fourth right. On the upper surface of the upper head member 23, a large number of burner ports 24 for air-fuel mixture is ejected from the divided head regions 21 ₁ to 21 ₄ are formed.

Burner head portion 21, a plurality of support holes 131 formed in Banahoruda 13 ₁ to the left half of the fixed in stove body 1, by fitting the lower end portion of the plurality of struts 222 vertically below the head member 22 It is supported on Banahoruda 13 _1. In addition, the lower head member 22, the mixing tube portion 223 extending downward from the center of each dividing head regions ₂₁ 1 to 21 ₄ are vertically. Further, the burner holder 13 ₁ is provided with _{first to fourth} nozzles 25 1 to 254 facing the lower end opening of the mixing pipe portion 223 extending from the _{first to fourth} division head regions 21 1 to 214. ing. Further, the lower head member 22 is provided with a guide plate portion 224 facing the upper end opening of each mixing pipe portion 223 with a slight gap. The fuel gas injected from the nozzles ₂₅ to 253 ₄ is diffused collide to each divided head regions ₂₁ 1 to 21 ₄ in the guide plate 224. Due to the radial venturi effect generated by this, the primary air is sucked from the lower end opening of each mixing pipe portion 223, and an air-fuel mixture is generated.

A safety valve 261 is provided in the gas supply path 26 for the stove burner 2 on the left side. Safety valve 261, the ignition operation by the point-extinguishing button 12 _1, is opened by the control of the controller ₆₁ for the stove burner 2 that the operation signal of the point extinguishing button 12 ₁ is input, the electromotive force of the thermocouple 28 described later when pan bottom temperature sensor 29 to be described later or when lowering to a misfire is detected detects overheating of the cooking container, it is closed by the control of the controller _61. Further, the gas supply path 26 is branched into first to _{fourth branch paths 26 1 to} 264 connected to the first to _{fourth nozzles 25 1 to} 254 on the downstream side of the safety valve 261. The first to _fourth on-off valves 262 _{1 to 262 4} and the first to fourth thermal power control valves 263 _{1 to 263 4 are} interposed in the _first to fourth branch paths 26 1 to 264. It is installed. Then, constitute a valve means capable of supplying individual fuel gas by these off valve ₂₆₂ 1-262 ₄ each divided head regions ₂₁ 1 to 21 _4.

In addition, the stove burner 2 on the left side, the ignition electrode 27 for spark control of the controller ₆₁ at the time of ignition operation by the point-extinguishing button 12 _1, a thermocouple 28, the bottom surface of the cooking container to be placed on the trivet 5 ₁ equivalents A pot bottom temperature sensor 29 that comes into contact with and detects the temperature is attached. Ignition electrodes 27 are provided to face the first ignition divided head region serving third divided head region 21 ₃ flame port 24a from forming on the upper surface inner periphery side corner portion of the portion that matches the (to be described later) of the upper head member 23 ing. Further, the thermocouple 28 is provided to face the third divided head region 21 ₃ and the flame detecting flame hole 24b formed on the upper surface inner periphery side corner portion extending over the fourth divided head region 21 ₄ of the upper head member 23 Has been done. Then, a flame detecting means for detecting the flame in the first ignition dividing head region is configured by the thermocouple 28. Further, the upper head member 23 is formed with a fire transfer flame port 24c located on both sides of the portion near the inner circumference of the hanging portion of each radial rib 231 to transfer the fire to the adjacent dividing head region. There is.

With reference to FIGS. 5 to 7, the stove burner 3 on the right side is a parent-child burner having a child burner head portion 31a and an annular parent burner head portion 31b surrounding the child burner head portion 31a as the burner head portion 31. It is configured. Further, the parent burner head portion 31b has four first to fourth divided head regions 31b _{1 to 31b 4} divided in the circumferential direction. Specifically, the child burner head portion 31a and the parent burner head portion 31b are composed of an annular common lower head member 32 and an annular common upper head member 33 installed on the lower head member 32. Has been done. On the upper surface of the lower head member 32, an annular rib 321a that separates the child burner head portion 31a and the parent burner head portion 31b, and a circumferential direction located on the parent burner head portion 31b side radially outward from the annular rib 321a. Four radial ribs 321 are erected at equal intervals. Further, on the lower surface of the upper head member 33, an annular rib 331a that separates the child burner head portion 31a and the parent burner head portion 31b, and an annular rib 331a located on the side of the parent burner head portion 31b that is radially outward from the annular rib 331a. Four radial ribs 331 are vertically installed at equal intervals in the circumferential direction. Then, the burner head portion 31 is brought into contact with the upper edges of the annular ribs 321a of the lower head member 32 and the radial ribs 321 by bringing the annular ribs 331a of the upper head member 33 and the lower edges of the radial ribs 331 into contact with each other. The child burner head portion 31a on the inner peripheral side and the parent burner head portion 31b on the outer peripheral side are divided, and the parent burner head portion 31b is divided into a front first division head area 31b ₁ and a left second division head area 31b. It is _{divided into 31b 2} , a rear third division head area 31b _3, and a right fourth division head area 31b ₄ . Further, on the upper surface of the upper head member 33, a large number of flame ports 34 from which the air-fuel mixture is ejected from _{each of the division head regions 31b 1 to 31b 4 and the child burner head portion 31a are formed.}

Burner head 31, a plurality of support holes 131 formed in Banahoruda 13 ₂ in the right half of the fixation of the stove body 1, by fitting the lower end portion of the plurality of struts 322 that vertically beneath the head member 32 It is supported on Banahoruda 13 _2. Further, the lower head member 32 is vertically provided with a mixing pipe portion 323 extending downward from one location in the circumferential direction of the central portion of _{each of the division head regions 31b 1 to 31b 4 and the child burner head portion 31a.} Furthermore, the Banahoruda 13 _2, first to fourth first to fourth respective nozzles ₃₅ 1 to 35 ₄ and the child burner facing the lower end opening of the mixing tube portion 323 extending from the respective divided head region _31b 1 ～31B ₄ the fifth nozzle 35 ₅ which faces the lower end opening of the mixing tube portion extending from the head portion 31a is provided. Further, the lower head member 32 is provided with a guide plate portion 324 facing the upper end opening of each mixing pipe portion 323 with a slight gap. Then, similarly to the stove burner 2 on the left side, the radial venturi effect of sucking the primary air from the lower end opening of each mixing pipe portion 323 is obtained.

A safety valve 361 is interposed in the gas supply path 36 for the stove burner 3 on the right side. Safety valve 361, the ignition operation by the point extinguishing button 12 _2, is opened by the control of the controller 6 ₂ hob burners 3 the operation signal of the point extinguishing button 12 ₂ is inputted, the electromotive force of the thermocouple 38 to be described later when pan bottom temperature sensor 39 to be described later or when lowering to a misfire is detected detects overheating of the cooking container, it is closed by the control of the controller 6 _2. The gas supply path 36 is branched into _{first to fifth} branch paths 36 1 to 365 connected to the first to _{fifth nozzles 35 1 to} 355 on the downstream side of the safety valve 361. The first to _fifth on-off valves 362 _{1 to 362 5} and the first to fifth thermal power control valves 363 _{1 to} 363 _{5 are} interposed in the _{first to fifth branch paths 36 1 to 365.} It is installed. Then, the first to fourth on-off valves 362 _{1 to 362 4} constitute valve means for the parent burner capable of individually supplying fuel gas to the _{first to fourth} division head regions 31b 1 to 31b 4. by the opening and closing valve 362 ₅ constitute a child burner valve means capable of supplying fuel gas to the child burner head portion 31a.

On the right side of the stove burners 3, an ignition electrode 37 for spark control of the controller 6 ₂ upon ignition operation by the point extinguishing button 12 _2, a thermocouple 38, the bottom surface of the cooking container to be placed on the trivet 5 ₂ equivalents A pot bottom temperature sensor 39 that comes into contact with and detects the temperature is attached. Ignition electrodes 37 are provided to face the child burner head area 31 ₅ of the flame port 34a from forming on the upper surface inner periphery side corner portion of the portion that matches the rear portion of the upper head member 33. Further, the thermocouple 38 is provided so as to face the flame detection flame port 34b formed at the inner peripheral side corner of the upper surface slightly distant from the ignition flame port 34a of the upper head member 33 in the circumferential direction. Then, the thermocouple 38 constitutes a flame detecting means for detecting the flame of the child burner head portion 31a. Furthermore, the upper head member 33, positioned near vertical設箇plants annular rib 331a and the radial ribs 331, fire between and between adjacent partitioning head region of each divided head region and child burner head area 31 ₅ A fire transfer flame port 34c for transferring is formed.

Further, gas stove of the present embodiment, as shown in FIG. 8, was placed on the lower surface of the hood RH located above the countertop CT, includes a position detecting means _71, 7 ₂ consisting of a pair of left and right CCD camera There is. Each position detection means _{71, 7 2} captures and overhead installation portion of the stove burners 2 of the right and left, the trivet ₅ 1, _{5 2} placed on the cooking container P (FIG. 2, FIG. 5 The positional correlation with respect to the burner head portions 21 and 31 (see), that is, the positional relationship between the center position of the cooking container P and the center positions of the burner head portions 21 and 31 is detected.

The detection information from the left position detecting means 7 _{1 is transmitted to the controller 6 1} for the left stove burner 2, and the detection information from the right position detecting means 7 _{2 is sent to the controller 6 2} for the right stove burner 3. Will be sent to. Each controller 6 _{1 and} 6 _2, based on the position correlation for each position detecting means 7 _1, 7 ₂ cooking container P of the burner head 21, 31 which is detected by the entire cooking container P is uniformly heated As described above, the thermal power in each division head region 21 _{1 to} 21 ₄ , 31b _{1 to 31b 4} is adjusted by _{each thermal power control valve 263 1 to 263 4} , 363 _{1 to} 363 _4. For example, in the left stove burner 2, when the center of the cooking container P is obliquely left and rearward with respect to the center of the burner head portion 21, the first and first located on the front and right sides. 4 of the sorting head region 21 _1, 21 the heating power at ₄ weaker than thermal instructed by the rotational operation of the point extinguishing button 12 _1, second and third divided head region 21 located to the left and rear _2, 21 ₃ thermal strongly than indicated firepower of, the entire cooking container P is to be uniformly heated. Further, in the stove burner 3 on the right side, for example, when the center of the cooking container P is displaced rearward with respect to the center of the burner head portion 31 as shown in FIG. 5, the second and fourth dividing heads located on the left and right are separated. While maintaining the thermal power of the regions 31b ₂ and 31b _{4 at} the thermal power specified by the rotation operation of the point fire extinguishing button 122 ₂ , the thermal power of the first division head region 31b ₁ located in front is weaker than the indicated thermal power. The heating power of the third division head region 31b ₃ located at the rear is made stronger than the indicated heating power so that the entire cooking container P is heated evenly.

By the way, if the ignition of the left stove burner 2 is delayed, it may be ignited by a relatively large flame, and the flame may overflow to the outside of the bottom surface of the cooking container P. Then, when a flame overflow occurs toward the front edge of the top plate 4 or the lateral side edge of the top plate 4 near the stove burner 2, that is, the left edge, the user or the top plate standing in front of the top plate 4 The flame approaches the user who is working by reaching for the counter top CT portion on the left side of No. 4, which gives the user a feeling of anxiety.

Therefore, in this embodiment, with the sign of the third divided head region 21 ₃ is a single segmented head region existing in the farthest part of the burner head portion 21 from the front edge of the top plate 4 in FIG. 2 # 1 the first ignition partitioning head region, nearest the ceiling from the center of the third divided head region 21 ₃ of the second and fourth two divided head region 21 _2, 21 burner head portion 21 of the ₄ adjacent to the left and right lateral side edges of the plate 4, i.e., the second ignition division head region of the fourth division head region 21 ₄ is divided head region farther from the left edge by symbol in FIG. 2 # 2, the top plate 4 ♯ third ignition partitioning head region, labeled the second division head region 21 ₂ close to the left side edge in FIG. 2 # 3, the first partitioning head region 21 ₁ closest to the front edge of the top plate 4 in FIG. 2 It is selected as the fourth ignition division head region with the reference numeral 4. When the ignition operation by the point-extinguishing button 12 ₁ is performed, first, the third on-off valve 262 _third opening, the fuel gas is supplied to the third divided head region 21 ₃ serving first ignition divided head region To ignite. Then, at the ignition of the third divided head region 21 ₃ is detected by the thermocouple 28, in order the fourth on-off valve 262 ₄ second on-off valve 262 ₂ and _one first on-off valve 262 to exist a time difference is opened, the second ignition divided head region serving fourth divided head region 21 ₄ 3 and the ignition divided head region serving second divided head region 21 ₂ and the fourth ignition divided head region serving first divided head region 21 ₁ Ignite the fire in order.

According to this, even if ignited by a relatively large flame in the third divided head region 21 ₃ in a delay of the ignition, overflow flame does not occur towards the front edge and the left edge of the top plate 4. Therefore, the flame approaches the user standing in front of the top plate 4 or the user working by reaching on the counter top CT on the left side of the top plate 4, giving the user anxiety. Can be avoided. Also, it will be ignited later than other partitioning head region in the first divided head region 21 ₁ closest to the front edge of the top plate 4. Therefore, the user until the ignition of the first division head region 21 ₁ can make time away from the front edge of the top plate 4. Therefore, even if the overflow flame upon ignition of the first division head region 21 _1, the flame is not approach the user away from the front edge of the top plate 4 can be reduced anxiety given to the user.

Furthermore, in order to provide a fourth division head region 21 ₄ to the fuel gas serving as a second ignition divided head region after detecting the ignition of the first ignition divided head region serving third divided head region 21 _3, third divided head region the ignition of a relatively large flame generated when supplying the fuel gas to the fourth division head region 21 ₄ Not ignition state 21 ₃ can be prevented. Further, since the flame port 24 is formed on the upper surface of the burner head portion 21, the flame overflow is less likely to occur as compared with the case where the flame port is formed on the outer peripheral surface of the burner head portion 21, and the user feels uneasy. Can be avoided more effectively.

_{In the stove burner 3 on the right side, the third division head region 31b 3} , which is a single division head region existing in the portion of the parent burner head portion 31b farthest from the front edge of the top plate 4, is designated by reference numeral # 1 in FIG. first ignition partitioning head region marked with the most from the center of the burner head portion 31 of the second and fourth two divided head region 31b _2, 31b ₄ adjacent to the left and right side of the third divided head region 31b ₃ The lateral side edge of the near top plate 4, that is, the second division head region 31b ₂ , which is the division head region far from the right edge, is designated as # 2 in FIG. The fourth division head region 31b ₄ near the right edge of 4 is the third ignition division head region designated with # 3 in FIG. 5, and the first division head region 31b ₁ closest to the front edge of the top plate 4 is shown in FIG. It is selected in the 4th ignition division head region marked with # 4.

When the ignition operation by the point extinguishing button 12 ₂ is performed, first, the fuel gas is ignited by supplying the child burner head portion 31a at the opening of the fifth on-off valve 362 _5. After that, when the ignition of the child burner head portion 31a is detected by the thermocouple 38, the third on-off valve 362 ₃ and the second on-off valve 362 ₂ and the fourth on-off valve 362 ₄ and the first on-off valve 362 ₁ are opened in order. The third division head area 31b _{3 which} is the first ignition division head area and the second division head area 31b _{2 which} is the second ignition division head area and the fourth division head area 31b ₄ and the fourth which is the third ignition division head area. The ignition is ignited in order with the first division head region 31b _{1, which is the ignition division head region.} As a result, it is possible to avoid giving anxiety to the user due to the overflow of flame at the time of ignition, as in the case of the left stove burner 2 described above.

In the above-described first embodiment, the third divided head region 21 ₃ is present alone in the most distant parts of the burner head portion 21 from the front edge of the top plate 4, a second embodiment shown in FIG. 9 as, at the farthest part of the burner head portion 21 from the front edge of the top plate 4, second and third two divided head region 21 laterally adjacent to _2, even as 21 ₃ exists Good. In this case, the two divided head region 21 _2, 21 nearest the top plate 4 in the lateral side edge from the center of the burner head portion 21 of the _three, i.e., towards the third divided head region 21 ₃ far from the left edge Is selected as the first ignition division head region (the division head region in which the fuel gas is first supplied and ignited at the time of ignition) with the reference numeral # 1. Furthermore, selecting the second division head region 21 ₂ closer to the left side edge of the top plate 4 to the second ignition division head region, labeled # 2 (divided head region for supplying the fuel gas to the second-time ignition) and, with the sign of the first and fourth two divided head region 21 _1, 21 fourth division head region 21 ₄ farther from the left edge of the top plate 4 of ₄ ♯3 close to the front edge of the top plate 4 _{The first division head region 214 near the left edge of the top plate 4} is designated as the third ignition division head region (the division head region that supplies the fuel gas third at the time of ignition) and is designated by # 4. 4 Select as the ignition division head area (the division head area that finally supplies fuel gas at the time of ignition).

Further, FIG. 10, a third illustrated in FIG. 11, as in the fourth embodiment, to partition the burner head portion 21 circumferentially to the first to third three divided head region _{21 1,} 21 2, 21 ₃ Is also possible. Then, as in the third embodiment shown in FIG. 10, at the farthest part of the burner head portion 21 from the front edge of the top plate 4, second and third two divided head region 21 laterally adjacent to ₂ , 21 ₃ if exists, two divided head region 21 _2, 21 nearest the top plate 4 in the lateral side edge from the center of the burner head portion 21 of the _three, namely, the third remote from the left side edge selects the divided head area 21 ₃ in the first ignition partitioning head region, labeled # 1, selects the second division head region 21 ₂ in the second ignition division head region, labeled # 2, the top plate _{The first division head region 21 1} closest to the front edge of 4 is selected as the third ignition division head region designated by # 3.

Also, as in the fourth embodiment shown in FIG. 11, when the second dividing head region 21 ₂ is present alone in the farthest part of the burner head portion 21 from the front edge of the top plate 4, the second divided head region 21 ₂ is selected as the first ignition division head region designated by # 1, and the first and third division head regions 21 adjacent to one side and the other side in the lateral direction of _{the second division head region 21 2 are selected. 1,} 21 lateral side edge of the nearest top plate 4 from the center of the burner head portion 21 of the _three, i.e., a second ignition third divided head region 21 ₃ is further from the left side edge by symbol of ♯2 The division head is selected, and the first division head region 21 ₁ closer to the left edge of the top plate 4 is selected as the third ignition division head region designated by # 3.

Further, as in the fifth to seventh embodiments shown in FIGS. 12 to 14, the burner head portion 21 can be divided into _{two divided head regions 21 1} and 212 in the circumferential direction. is there. Then, as in the fifth embodiment shown in FIG. 12, when the second dividing head region 21 ₂ is present alone in the farthest part of the burner head portion 21 from the front edge of the top plate 4, the second divided head region 21 ₂ is selected as the first ignition division head region with _{the reference numeral # 1, and the remaining first division head region 21 1} is selected as the second ignition division head region with the reference numeral # 2.

In the fifth embodiment, the front half portion of the first divided head region 21 ₁ the burner head 21, the second divided head region 21 ₂ is positioned at the second half portion of the burner head portion 21, the burner head portion 21 a first part of divided head region 21 ₁ and the second part of the sorting head region 21 ₂ may be present in the second half of the. In this case, if the peripheral length of one dividing head region located in the latter half of the burner head portion 21 is longer than the peripheral length of the other dividing head region located in the latter half of the burner head portion 21, the sky is heaven. It is considered that one of the dividing head regions exists alone in the portion of the burner head portion 21 farthest from the front edge of the plate 4. For example, as in the sixth embodiment shown in FIG. 13, the first divided head circumference of the second divided head region 21 ₂ of the portion located in the second half portion of the burner head portion 21 is located in the second half portion of the burner head portion 21 is longer than the circumferential length of the region 21 ₁ part, the second divided head region 21 ₂ is present solely at the farthest part of the burner head portion 21 from the front edge of the top plate 4 considered. Then, the second division head region 21 ₂ is selected as the first ignition division head region designated by # 1, and the remaining first division head region 21 ₁ is selected as the second ignition division head region designated by # 2. To be selected.

Further, as in the seventh embodiment shown in FIG. 14, _{the peripheral length of the first division head region 21 1} located in the latter half of the burner head portion 21 and the second division head located in the latter half of the burner head portion 21 If the peripheral lengths of the regions 21 _{2 are equal, the first and second compartmentalized head regions 21 1} and 21 are laterally adjacent to the portion of the burner head portion 21 farthest from the front edge of the top plate 4. _{It is considered that 2} exists. Then, the two divided head regions 21 _1, lateral side edge of the nearest top plate 4 from the center of the burner head portion 21 out of 21 _2, i.e., the second division head region 21 ₂ is further from the left side edge ♯1 _{The first ignition division head region 21 1} is selected as the first ignition division head region designated by # 2, and the first ignition division head region 21 1 is selected as the second ignition division head region designated by # 2.

The same structure as that of the second to seventh embodiments can be adopted for the divided head region of the parent burner head portion 31b of the stove burner 3 which is a parent and child burner.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited thereto. For example, in the above embodiment, at the time of ignition, first, fuel gas is supplied to the first ignition division head region to ignite, and then fuel gas is sequentially supplied to the division head regions after the second ignition division head region one by one. However, after igniting the first ignition division head region, fuel gas is simultaneously supplied to the two division head regions on both sides of the first ignition division head region, and then fuel gas is supplied to the front division head region. May be good. Further, in the above embodiment, the number of the burner head portion 21 and the parent burner head portion 31b divided is 2 to 4, but it can be 5 or more. Further, although the gas stove of the above embodiment is a built-in type stove, the present invention can be similarly applied to a tabletop type stove installed on a gas stove.

2,3 ... stove burner, 21,31 ... burner head part, 31a ... child burner head part, 31b ... parent burner head part, 21 _{1 to} 21 ₄ , 31b _{1 to 31b 4} ... division head area, # 1 ... first Ignition division head area, # 2 ... 2nd ignition division head area, 24, 34 ... Flame port, 263 _{1 to 263 4} ... On-off valve (valve means), 363 _{1 to} 363 ₄ ... On-off valve (valve means for parent burner) , 363 ₅ ... On-off valve (valve means for child burner), 28, 38 ... Thermocouple (flame detection means), 4 ... Top plate, 41 ₁ , 41 ₂ ... Opening for burner, 5 ₁ , 5 ₂ ... Gotoku.

Claims (5)

In a gas stove equipped with a burner head portion having a large number of flame openings formed on the burner opening opened on the top plate and a trivet installed on the top plate so as to surround the burner opening.
The burner head portion has a plurality of compartmentalized head regions divided in the circumferential direction, and includes valve means capable of individually supplying fuel gas to the plurality of compartmentalized head regions.
When a single partition head area exists in the part of the burner head portion farthest from the front edge of the top plate, this section head area is set as the first ignition partition head area, and the burner farthest from the front edge of the top plate. When there are two compartmentalized head areas adjacent to each other in the head portion in the horizontal direction, the division of the two compartmentalized head regions farther from the lateral side edge of the top plate closest to the center of the burner head portion. The head area is used as the first ignition division head area.
A gas stove characterized in that, at the time of ignition, fuel gas is first supplied to the first ignition division head region by a valve means to ignite. The gas stove according to claim 1, wherein the burner head portion has at least three divided head regions divided in the circumferential direction.
When a single partition head region exists in the portion of the burner head portion farthest from the front edge of the top plate, the two partition head regions adjacent to one side and the other side in the lateral direction of the partition head area. The partitioning head region farthest from the lateral side edge of the top plate closest to the center of the burner head portion is set as the second ignition partitioning head region, and the portion of the burner head portion farthest from the front edge of the top plate is laterally located. If there are two compartmentalized head regions adjacent to each other, the compartmentalized head region closest to the lateral side edge of the top plate closest to the center of the burner head portion of these two compartmentalized head regions is the second ignition compartmentalized head. As an area
A gas stove characterized in that, at the time of ignition, fuel gas is supplied to the second ignition division head region next to the first ignition division head region by the valve means. A flame detecting means for detecting a flame in the first ignition dividing head region is provided, and a combustion gas is supplied to the second ignition dividing head region after detecting a flame in the first ignition dividing head region by the flame detecting means at the time of ignition. The gas stove according to claim 2, wherein the gas stove is characterized in that. The gas stove according to any one of claims 1 to 3, wherein a flame port is formed on the upper surface of the burner head portion. It is a gas stove equipped with a stove burner having a burner head part on which a large number of flame ports are formed facing the burner opening opened on the top plate, and Gotoku installed on the top plate so as to surround the burner opening. The stove burner is composed of a child burner head portion and a parent-child burner having an annular parent burner head portion surrounding the child burner head portion as a burner head portion.
The parent burner head portion has a plurality of compartmentalized head regions divided in the circumferential direction, and a valve means for the parent burner capable of individually supplying fuel gas to these plurality of compartmentalized head regions, and a fuel gas to the child burner head portion. It is equipped with a valve means for the child burner that can supply the fuel and a flame detecting means for detecting the flame of the child burner head.
When a single partition head area exists in the part of the parent burner head portion farthest from the front edge of the top plate, this section head area is set as the first ignition partition head area and is the farthest from the front edge of the top plate. If there are two compartmentalized head areas laterally adjacent to each other in the parent burner head portion, the one of these two compartmentalized head regions that is farthest from the lateral side edge of the top plate closest to the center of the burner head portion. The division head area of is used as the first ignition division head area.
At the time of ignition, first, fuel gas is supplied to the child burner head portion by the valve means for the child burner to ignite, the flame of the child burner head portion is detected by the flame detecting means, and then the parent burner head portion is detected by the valve means for the parent burner. A gas stove characterized in that fuel gas is first supplied to the first ignition division head region among the plurality of division head regions.

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