JP2004218904A - Burner for gas range - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase ignition performance and misfire detection performance by increasing the positioning accuracies of an ignition electrode and a thermocouple without obstructing maintainability in a burner for a gas range. <P>SOLUTION: A stop plate 6 having the ignition electrode E and the thermocouple TC is screwed to the mounting surface 124 of a stop plate mounting part 123 installed on a venturi 1 to which a burner body 2 is screwed. The burner body loading surface 122 of the venturi 1 on which the burner body 2 is placed are formed flush with the mounting surface 124 by simultaneous flat surface machining. Machining error between the burner body loading surface 122 and the mounting surface 124 is eliminated, and accordingly the positioning accuracies between the ignition electrode E and thermocouple TC and the burner head 3 are remarkably increased. Also, an insulating part 51 is formed between the burner body loading surface 122 and the mounting surface 124. As a result, boiled liquid dripping on the stop plate 6 can be prevented from entering into the burner body loading surface 122 and such a defect that the burner body 2 becomes difficult to be removed from the venturi 1 can be prevented. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a stove burner used for a gas stove, which improves the positioning accuracy of an ignition electrode and a thermocouple provided therein without hindering the maintainability of the burner, thereby achieving good ignition performance and correct misfire. It relates to a device that exhibits detection performance.
[0002]
[Prior art]
BACKGROUND ART Conventionally, there is a burner for a stove used in a gas stove as shown in FIG. In the conventional burner for a stove shown in FIG. 6, a burner body 602 is mounted on a burner body mounting surface 6122 of a venturi 601 for mixing gas and primary air, and the burner body 602 is screwed with a screw b1. A burner head 603 that forms an external flame type flame outlet 641 is mounted on the upper part of the burner head 603. Then, an L-shaped stop plate 606 to which the ignition electrode E and the thermocouple TC are mounted is attached to a mounting surface 6124 of a stop plate mounting portion 6123 protruding from a side of the venturi 601 at a position lower than the burner body mounting surface 6122. It is fixed with screws b on top. The ignition electrode E and the thermocouple TC are made to face the lower surface of the burner head 603 through a hole 623 (notch in some cases) provided in the burner body 602, and the ignition electrode E is connected to a target TG provided on the lower surface of the burner head 603. Are set, and the distance between the thermocouple TC and the flame port 643 for detecting misfire is set. The burner body mounting surface 6122 and the mounting surface 6124 are each finished to a flat surface by cutting or the like.
[0003]
As described above, the burner body 602, the ignition electrode E, and the stopper plate 606 of the thermocouple TC are screwed to the venturi 601 and directly fixed to the burner body. Positioning with the head 603 can be easily performed. In addition, the discharge gap between the ignition electrode E and the target TG provided on the lower surface of the burner head 603 and the distance between the thermocouple TC and the flame port 643 are set within the specified ranges.
[0004]
[Patent Document 1]
JP-A-11-22973 [Patent Document 2]
JP-A-59-23558 (FIGS. 3 and 5)
[0005]
[Problems to be solved by the invention]
However, in the burner for the stove, since the burner body mounting surface 6122 and the mounting surface 6124 are separately formed into a flat surface in the venturi 601, there is a gap between the burner body mounting surface 6122 and the mounting surface 6124. Causes a processing error. Therefore, even if the ignition electrode E and the thermocouple TC are accurately attached to the stop plate 606, the discharge gap between the ignition electrode E and the target TG or the distance between the thermocouple TC and the flame outlet 643 varies. There was a problem.
[0006]
That is, when the discharge gap between the ignition electrode E and the target TG is not within the specified range, an ignition error occurs and good ignition performance cannot be obtained. If the distance between the thermocouple TC and the flame outlet 643 is not within the specified range, flame detection failure occurs and correct misfire detection performance cannot be obtained.
[0007]
In the above-described burner for the stove, the ignition electrode E and the thermocouple TC are shown as being mounted on one stop plate 606. However, the ignition electrode E and the thermocouple TC are respectively mounted on separate stop plates. In some cases.
The present invention has been made in view of the above circumstances, and realizes a burner for a stove having a structure in which positioning accuracy between the ignition electrode and the thermocouple and the burner head is improved.
[0008]
[Means for Solving the Problems]
(1) The stove burner of the invention according to claim 1 is
A venturi having an upper surface of a head for discharging a mixed gas of fuel gas and primary air with a burner body mounting surface,
A burner body fixed on the burner body mounting surface of the venturi and having an annular portion having an upper surface as a burner head mounting surface;
On the lower surface, a number of teeth for forming a flame outlet are provided around, and teeth for forming a flame outlet for a flame applied to a target and a thermocouple that cause a spark discharge between the ignition electrode and the ignition electrode are provided. A burner head mounted on the burner head mounting surface of the burner body,
A stop plate on which the ignition electrode or the thermocouple is mounted is fixed on a mounting surface of a stop plate mounting portion provided on the venturi so that the ignition electrode and the thermocouple and the burner head are positioned, and The burner body mounting surface and the mounting surface of the stop plate mounting portion are formed to be flush with each other by simultaneous planar processing.
[0009]
In this device, since the burner body mounting surface and the mounting surface of the stopper plate are formed to be flush with each other by simultaneous flattening, the burner body mounting surface and the mounting surface of the stopper plate in the venturi are located between the burner body mounting surface and the mounting surface of the stopper plate. No processing error occurs. Therefore, since there is no machining error between the mounting surface of the burner body and the mounting surface of the stop plate, the discharge plate between the ignition electrode and the target of the burner head is fixed by fixing the stop plate to the mounting surface of the venturi. The gap or the distance between the thermocouple and the flame outlet can be set so as to be surely within the specified range.
[0010]
(2) A burner for a stove of the invention according to a second aspect of the present invention is the burner for the stove (claim 1), wherein an edge cut portion is provided between the burner body mounting surface and the mounting surface. It is characterized.
In this device, in addition to the above-mentioned operation, even if boiling drops dripping onto the stopper plate from a hole or a notch of the burner body facing the ignition electrode or the thermocouple, the boiling drops are placed on the burner body by the marginal portion. It can be prevented from entering the placing surface. Therefore, it is possible to prevent a problem that the boil-in spills into and adheres to the contact surface between the burner body and the venturi, and the burner body hardly comes off the venturi.
[0011]
【The invention's effect】
As described above, according to the stove burner according to the first aspect of the present invention, since the machining error does not occur between the burner body mounting surface and the mounting surface of the stop plate, the stop plate is attached to the mounting surface of the venturi. By being fixed, the discharge gap between the ignition electrode and the target of the burner head or the distance between the thermocouple and the flame outlet can be set to be surely within the specified range, and as a result, the good There is an effect that a proper ignition performance and a correct misfire detection performance can be exhibited.
[0012]
According to the second aspect of the present invention, in addition to the above-mentioned effects, in addition to the above-described effects, it is possible to prevent a problem that the burner body hardly comes off from the venturi due to the sticking of the boiler between the contact surfaces of the burner body and the venturi. As a result, there is an effect that the disassembling and assembling work can be performed satisfactorily without hindering maintenance such as disassembling and cleaning the burner.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is an exploded perspective view of a stove burner according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the stove burner. The cross-sectional view of FIG. 2 is a view in which a vertical cross section in the longitudinal direction of the Venturi horizontal portion 11 and a vertical cross section from the mounting portion 123 of the Venturi head 12 are combined.
[0014]
<Overall configuration>
As shown in FIGS. 1 and 2, the burner for a stove includes a venturi 1, a burner body 2, a burner head 3, an ignition electrode E, and a thermocouple TC. The burner for the stove is installed on a gas stove (not shown). The venturi 1 is disposed in the stove body, and the burner body mounting surface 122 of the venturi 1 faces the opening of the top plate. The burner body 2 is screwed onto the body mounting surface 122, and the burner head 3 for forming the flame outlet 41 (42, 43) is mounted on the burner body 2. The ignition electrode E and the thermocouple TC are screwed to the venturi 1 through the stopper plate 6 and the respective ends thereof are formed through holes (through holes 23 and window holes 24) provided in the burner body 2 through the burner head 3. So that it faces the lower surface. Hereinafter, the configuration of each unit will be described.
[0015]
<Venturi>
The venturi 1 is entirely made of a metal casting and has a hollow interior. The venturi 1 mixes fuel gas and primary air, and has a laterally extending portion 11 extending long in the lateral direction. It has a head 11 connected to the part 11 and directed upward. A fuel gas supply nozzle is inserted into the tail end portion 13 of the horizontal portion 11, and a primary air introduction hole is provided (not shown). The head 12 has a large opening 121 from which a mixed gas of fuel gas and primary air is discharged. The upper surface of the head 12 is flattened by cutting or the like to form a burner body mounting surface 122 for mounting the burner body 2. On this burner body mounting surface 122, two screw holes h1 for fixing the burner body 2 with screws b1 are provided. Further, two stop plate mounting portions 123 for screwing the stop plate 6 of the ignition electrode E and the thermocouple TC with screws b are provided on the side of the head 12. The upper surfaces of the retaining plate mounting portions 123 are flattened by cutting or the like to form the mounting surface 124 of the retaining plate 6. Screw holes h for screwing the stopper plate 6 are provided in these mounting surfaces 124. The mounting surface 124 is formed flush with the burner body mounting surface 122 at the same time.
[0016]
After the casting, the upper surface of the head 12 and the upper surface of the stopper plate mounting portion 123 are simultaneously processed into a flat surface by cutting or the like after casting, so that the burner body mounting surface 122 on the upper surface of the head 12 and the stopper plate mounting surface The mounting surface 124 on the upper surface of the portion 123 can be finished flush. Thus, no processing error occurs between the burner body mounting surface 122 and the mounting surface 124 of the stopper plate 6. The plane processing of the burner body mounting surface 122 and the mounting surface 124 at the same time is not limited to cutting, but may be, for example, grinding or polishing.
Further, each of the continuous portions 5 between the venturi head 12 and each of the retaining plate mounting portions 123 is provided with an edge cut portion 51 whose upper portion is opened upward and left and right in the lateral direction. That is, the rim 51 is provided between the burner body mounting surface 122 and the mounting surface 124. Thus, even if the spills drop onto the stopper plate 6, if the spills attempt to move to the burner body mounting surface 122 side, the spills will fall into the marginal cutout 51, and the spills will occur. It is possible to prevent entry into the mounting surface 122.
The edge cutting portion 51 may be formed, for example, at the time of casting the venturi 1, or may not be formed at the time of casting the venturi 1, and may be attached to the burner body mounting surface 122 and the stopper plate 6. The surface 124 may be formed by cutting off the upper portion of the continuous portion 5 after the surface 124 is subjected to the planar processing finish.
[0017]
<Burner body>
The burner body 2 is made of a metal such as brass, ceramics, or the like, and is combined with the burner head 3 to form a flame port 41 (42, 43). The burner body 2 has an upper surface slightly inclined inward. An annular portion 21 serving as a head mounting surface 211 and a disk-shaped skirt portion 22 extending outward from a side portion of the annular portion 21 are provided. The burner body 2 has a substantially rectangular through hole 23 facing the ignition electrode E and a circular window hole 24 facing the thermocouple TC. Referring to FIG. 2, a bottom portion 212 of annular portion 21 has a gas inlet 25 for introducing a mixed gas from venturi 1 and a guide rod 26 for supporting and guiding burner head 3 at the center thereof. Is erected.
Then, the burner body 2 is fixed to the venturi 1 by placing the outer peripheral edge of the annular portion bottom portion 212 provided with the screw through hole h2 on the burner body mounting surface 122 of the venturi 1 and screwing it with the screw b1. Like that. When the burner body 2 is fixed to the venturi 1 facing the top of the gas stove (not shown), the skirt portion 22 covers the opening of the top of the gas stove and spills into the stove body from the opening of the top. Prevents intrusion.
[0018]
<Burner head>
The burner head 3 is made of a metal such as brass or ceramics, is mounted on the burner body 2, closes an upper opening 27 of the annular portion 21 of the burner body 2, and has an outer flame type flame on its outer peripheral edge. The mouth 41 is formed. The burner head 3 has an umbrella shape as a whole, and a plurality of teeth 31, 32, 33 for forming various flame openings 41, 42, 43 are provided on a lower surface thereof at predetermined intervals. At the center, a cylindrical fitting portion 34 into which the guide bar 26 of the burner body 2 is fitted protrudes.
[0019]
In the present embodiment, the various flame ports 41, 42, and 43 are, in addition to the heating flame port 41 functioning as a burner, an ignition flame port 42 and a misfire detection flame port 43. Are shown. That is, referring to FIG. 1, teeth 32 arranged closer to the center than teeth 31 provided on the same circumference on the outer peripheral edge of the lower surface of burner head 3 to form heating flame port 41. , 33 form an ignition flame 42 and a misfire detection flame 43, respectively. The teeth 32 and 33 provided near the center are separated from the teeth 31 on the outer peripheral edge by boundary projecting pieces 35 on both sides. The heating flame 41 has a large flame opening and a small flame opening. The teeth 31 form the large flame opening and the small flame opening.
A target TG that faces the ignition electrode E is formed at a position radially outside the teeth 32 that form the ignition flame port 42. Spark discharge at the time of ignition occurs between the target TG and the ignition electrode E.
In addition, the outer peripheral edge in the formation range of the teeth 32 and 33 forming the ignition flame 42 and the misfire detection flame 43 is for preventing the spilling or the like hanging on the burner head 3 from being transmitted. The blocking projection 36 extends in the circumferential direction.
[0020]
When the burner head 3 having the above configuration is mounted on the burner body 2 in a positioning state, the upper opening 27 in the annular portion 21 of the burner body 2 is closed, and the burner body 3 is formed by the large number of teeth 31, 32, 33. Flames 41, 42, 43 are formed between the burner head 2 and the burner head mounting surface 211, and the mixed gas from the venturi 1 is directed outward from the flames 41, 42, 43 via the gas inlet 25 of the burner body 2. Will be spouted out.
At this time, if the mixed gas ejected from the ignition flame 42 is ignited by the spark discharge between the ignition electrode E and the target TG, the flame formed in the ignition flame 42 is adjacent to the misfire detection flame. The mixed gas ejected from the port 43 and the heating flame port 41 on the outer peripheral edge is ignited by fire.
In order to accurately position the burner head 3 with respect to the burner body 2 when assembling the burner head 3 to the burner body 2, a predetermined position between the lower surface of the burner head 3 and the annular portion 21 of the burner body 2 is required. May be provided, or a means may be provided such that the shape of the guide rod 26 of the burner body 2 and the shape of the hole of the fitting portion 34 of the burner head 3 are eccentric to each other (FIG. Not shown).
[0021]
<Ignition electrode>
The ignition electrode E has a rod-shaped insulator portion 70 and an electrode portion 71 mounted on the insulator portion 70, and is accurately positioned and fixed to the stopper plate 6 by a metal fitting (not shown). . Then, the stopper plate 6 to which the ignition electrode E is attached is fixed to the attachment portion 123 of the venturi 1 by screwing with a screw b. Therefore, when the burner body 2 and the burner head 3 are assembled to the venturi 1, the electrode 71 at the tip faces upward from the through hole 23 of the burner body 2 and faces the target TG of the burner head 3. Will be arranged.
At this time, a discharge gap (gap) between the ignition electrode E and the target TG provided on the lower surface of the burner head 3 is set so that a spark discharge is reliably generated between the ignition electrode E and the target TG of the burner head 3. It is set within the specified range. The discharge gap is set, for example, within a range of 3.5 mm plus or minus 0.5 mm. Accordingly, the ignition electrode E can prevent a problem that an ignition error occurs and the burner does not ignite (or is difficult to ignite), so that good ignition performance can be exhibited.
When the ignition electrode E is ignited, a high voltage is supplied from a piezoelectric generator (not shown) via a lead wire to generate spark discharge between the electrode portion 71 and the target TG. The mixed gas ejected from the port 42 will be ignited.
[0022]
<Thermocouple>
The thermocouple TC has a rod-shaped main body part 80 and a sensor part 81 mounted on the main body part 80, and a metal fitting (not shown) is mounted on the same stopper plate 6 on which the ignition electrode E is mounted. Is accurately positioned and fixed. Then, the stopper plate 6 to which the thermocouple TC is attached is fixed to the attachment portion 123 of the venturi 1 with screws b. Therefore, when the burner body 2 and the burner head 3 are assembled to the venturi 1, the sensor portion 81 at the tip projects upward from the window hole 24 of the burner body 2 so as to face the misfire detecting flame opening 43. Will be arranged.
At this time, the distance between the thermocouple TC and the misfire detection flame port 43 is set within a specified range so that the sensor section 81 of the thermocouple TC reliably hits the flame formed from the misfire detection flame port 43 and detects misfire. Is set within. This distance is set within a range of, for example, 4.0 mm plus or minus 0.5 mm. Therefore, it is possible to prevent a malfunction such as a failure in detecting a flame caused by the thermocouple TC and shutting off the supply of the fuel gas by a safety device (an electromagnetic valve for shutting off the original gas or the like), which is not shown, thereby exhibiting a correct misfire detection performance. Can be done.
That is, the sensor section 81 is a thermocouple in which dissimilar metals are joined, detects whether or not a misfire has occurred by receiving heat of a flame and generating a thermoelectromotive force, and this thermoelectromotive force is used as a lead wire. Through the safety device. If a flame is formed from the misfire detection flame 43, the thermoelectromotive force generated by the sensor unit 81 is input to the safety device to continue the supply of the fuel gas. Disappears (for example, misfire due to boiling over etc.), the sensor section 81 stops generating thermoelectromotive force, the safety device is closed, and the supply of fuel gas is shut off.
[0023]
<Installation of burner>
The stove burner having the above configuration is assembled, for example, as follows. The venturi 1 is fixed to the stove body of the gas stove (not shown) by screwing it to the bottom plate, and the ignition electrode E and the thermocouple are previously mounted on the mounting surface 124 of the stop plate mounting portion 123 projecting from the side of the venturi 1. The L-shaped stopper plate 6 to which the TC is attached is fixed with screws b. Next, the burner body 2 is mounted on the burner body mounting surface 122 on the upper surface of the venturi head 12 facing the opening of the top plate of the gas stove, and screwed with a screw b1, and thereafter, the burner head on the upper surface of the burner body annular portion 21 When the burner head 3 which forms the flame outlets 41, 42, 43 of the external flame type on the mounting surface 211 is mounted at a predetermined position, the assembling of the stove burner is completed.
[0024]
<Effects>
According to the stove burner according to the above embodiment, since the burner body 2, the ignition electrode E and the stop plate 6 of the thermocouple TC are screwed to the venturi 1 and directly fixed, the ignition electrode E and the thermocouple TC are fixed. And the burner head 3 can be easily positioned.
Further, since the burner body mounting surface 122 and the mounting surface 124 of the stopper plate mounting portion 123 in the venturi 1 are formed to be flush with each other by the same plane processing, the mounting surface of the burner body mounting surface 122 and the stopper plate 6 is provided. There is no machining error between them. As a result, since there is no processing error between the burner body mounting surface 122 and the mounting surface 124 of the stopper plate 6, the stopper plate 6 is fixed to the mounting surface 124 of the venturi 1 by screws. The positioning accuracy between the ignition electrode E and the thermocouple TC attached to the stop plate 6 and the burner head 3 is remarkably improved.
Therefore, the discharge gap between the ignition electrode E and the target TG of the burner head 3 and the distance between the thermocouple TC and the misfire detection flame opening 43 can be reliably set so as to be within the specified ranges. . As a result, good ignition performance and correct misfire detection performance can be exhibited.
[0025]
Further, since the edge cut portion 51 is provided between the burner body mounting surface 122 of the venturi 1 and the mounting surface 124 of the stopper plate 6, the through-hole 23 and the window hole 24 of the burner body 2 allow the upper surface of the stopper plate 6. Even if boiled spills are dripped into the burner body mounting surface 122, the boiled spill can be reliably prevented from dripping into the rim 51.
Accordingly, it is possible to prevent a problem that the boil-in spills in between the contact surfaces between the burner body 2 and the venturi 1, sticks and adheres, and the burner body 2 is hardly detached from the venturi 1. As a result, maintenance and maintenance such as disassembly and cleaning are not hindered, and the disassembly and assembly work can be performed well.
[0026]
<Others>
Note that the present invention is not limited to the above embodiment, and for example, the following modifications are possible.
(1) The upper portion of the continuous portion 5 provided with the edge cut portion 51 is formed substantially flat, but as shown in FIG. An inclined surface 52 may be formed on one side, or an inclined surface 53 may be formed on both the left and right sides in the lateral direction of the continuous portion 5b, as shown in FIG. 3B. As shown in (c), an arc surface 54 may be formed on the upper part of the continuous portion 5c. In this case, the tops of the continuous portions 5a, 5b, 5c may be set at substantially the same height as the burner body mounting surface 122 and the mounting surface 124 (not shown). Also, like the connecting portion 5d shown in FIG. 4 (a) and the connecting portion 5e shown in FIG. 4 (b), in the front-rear direction in which the stopper plate attaching portion 123 projects from the side of the Venturi head 12. The inclined surface 55 (FIG. 4A) or the inclined surface 56 (FIG. 4B) may be formed.
By forming the upper portions of the continuous portions 5a to 5e as inclined surfaces or arcuate surfaces in this manner, it is possible to reliably drop the spillage that has fallen into the edge cutting portion 51 without stopping. That is, it is possible to prevent the spilled portion from sticking to the edging portion 51 and sticking, and the edging portion 51 to disappear.
[0027]
(2) Although the edge cutout 51 is basically formed by cutting out the upper part of the continuous portion 5, as shown in FIG. 5, the burner body mounting surface 122 and the stopper plate attaching portion are provided. The rim portion 51 may be configured by the upright wall portion 51a protruding higher than the mounting surface 124 of the portion 123. The cut-out portion 51 formed by the standing wall portion 51a also prevents the spills dropped on the stopper plate 6 from moving toward the burner body mounting surface 122, and prevents the spills from entering the burner body mounting surface 122. Can be prevented.
The edge cut portion 51 formed by the upright wall portion 51a is formed on the burner body mounting surface 122 and the mounting surface 124 of the stopper plate 6 after the surface processing finish, and is formed on the continuous portion 5f as the upright wall portion 51a. The piece may be formed by fitting, screwing, welding, or the like, or may be formed at the time of casting of the venturi 1, and further, the burner body mounting surface 122 and the stopper plate 6. When the flat surface processing of the mounting surface 124 is finished, the upper wall portion 51a may be formed without processing the upper part of the continuous portion 5f.
[0028]
(3) The ignition electrode E and the thermocouple TC are mounted on the same stopper plate 6, but the ignition electrode E and the thermocouple TC are mounted on different stopper plates, respectively, and the venturis are separately provided. 1 may be screwed.
[0029]
(4) In the burner head 3, the misfire detection flame port 43 is formed by the teeth 33 near the center separately from the heating flame port 41 on the outer peripheral edge. A part of the flame 41 for heating by the heater 31 may also serve as a flame for detecting misfire, and the flame for detecting misfire 43 may not be formed separately. In this case, the thermocouple TC is arranged so as to face a part of the heating flame 41 serving also as the misfire detection flame at a distance within a specified range.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a configuration of a stove burner according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a configuration of a stove burner according to an embodiment of the present invention.
FIG. 3 is a schematic diagram showing another example of the shape of a continuous portion provided with a rim.
FIG. 4 is a schematic view showing still another example of the shape of a continuous portion provided with a rim.
FIG. 5 is a partial cross-sectional view showing an example in which a rim portion is constituted by an upright wall portion.
FIG. 6 is a cross-sectional view showing a configuration of a conventional stove burner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Venturi 2 Burner body 3 Burner head 5 Continuous part 6 Stop plate 11 Horizontal part 12 Head 21 Annular part 31, 32, 33 Teeth 41 Flame for heating 42 Flame for ignition 43 Flame for misfire detection 51 Edge cut 122 Burner body mounting surface 123 Stopper plate mounting portion 124 Mounting surface 211 Burner head mounting surface E Ignition electrode TC Thermocouple TG Target

Claims (2)

A venturi having a burner body mounting surface on the top of the head for discharging a mixed gas of fuel gas and primary air,
A burner body having an annular portion fixed on the burner body mounting surface of the venturi and having an upper surface as a burner head mounting surface;
On the lower surface, a number of teeth for forming a flame outlet are provided around, and teeth for forming a flame outlet for a target and a thermocouple that cause a spark discharge between the ignition electrode and the ignition electrode are protruded, and A burner head mounted on the burner head mounting surface of the burner body,
A stop plate to which the ignition electrode or the thermocouple is mounted is fixed on a mounting surface of a stop plate mounting portion provided on the Venturi so that the ignition electrode and the thermocouple and the burner head are positioned, and A burner for a hob, wherein the burner body mounting surface and the mounting surface of the retaining plate mounting portion are formed to be flush with each other by simultaneous planar processing. The stove burner according to claim 1,
A burner for a hob, wherein an edge cut portion is provided between the burner body mounting surface and the mounting surface.

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