JP3823453B2 - Stove burner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stove burner of a gas cooker.
[0002]
[Prior art]
The structure of a conventional stove burner is shown in FIG. As shown in FIG. 4, the burner fixing bracket 22 for attaching the ignition electrode 8 and the thermocouple 9 and the burner head 21 including the mixing tube 23 are configured as separate parts, and the burner head 21 is fitted into the burner fixing bracket 22 or It was fixed with screws.
[0003]
The ring cover 31 is fixed on the top plate 20 of the ring cover 31 and the position is regulated by the burner head 21 or another part for fixing the ring cover 31 is provided.
[0004]
In addition, air was sucked into the mixing tube 23 so that air was sucked from a hole provided on the side of the insertion hole of the nozzle 6 of the damper 25 attached to the tip of the mixing tube 23.
[0005]
[Problems to be solved by the invention]
However, in the conventional stove burner, the positional relationship between the ignition electrode 8 and the thermocouple 9 and the burner head 21 depends on the inclination of the attachment of the burner head 21 or the inclination of the attachment of the ignition electrode 8 and the thermocouple 9. Therefore, there has been a problem in that a good ignition performance and combustion detection performance may not be obtained due to erroneous discharge and flame detection error.
[0006]
Further, in the conventional stove burner, the ring cover 31 is placed and fixed on the top plate 20, so that when the top plate 20 vibrates when the pan is placed, the ring cover 31 also vibrates and sounds, or the top plate 20 The upper surface is easily scratched, and there is a problem that a separate part for fixing the ring cover 31 is required when it is fixed with a gap between the ring cover 31 and the top 20 in order to prevent it.
[0007]
In addition, when the spilled material enters the mixing tube 23 through the burner cap 27 and the burner head 21, the spilled material accumulates in the mixing tube 23 and sticks, and accelerates the corrosion of the mixing tube 23, or the damper 25 is mixed with the mixing tube 23. 23, and has a problem that it is difficult to come off.
[0008]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. The first object of the present invention is to provide a stove burner in which positioning of the ignition electrode and thermocouple and the burner head can be ensured, and good ignition performance and combustion detection performance can be obtained. The second purpose is to provide a stove burner that can hold and position the ring cover reliably with a simple structure without increasing the number of parts, and it is durable and prevents spillage from accumulating in the mixing tube. The third object is to provide a stove burner with improved performance and ease of maintenance.
[0009]
[Means for Solving the Problems]
In order to achieve the first object, the present invention provides an ignition electrode and a thermocouple mounting portion on a metal fitting for fixing a burner, and the burner fixing metal fitting, the burner head, and the mixing tube are connected to the tip of the mixing tube on the burner head side. It is constructed by caulking integrally with the caulking provided at the part , and positioning of the ignition electrode, thermocouple and burner head can be ensured.
[0010]
In order to achieve the second object, the burner fixing bracket or the burner head is provided with a ring cover holding and positioning means, and the ring cover can be held and positioned without providing a separate part for fixing the ring cover. it can.
[0011]
In order to achieve the third object, a notch or a hole is provided on the top and bottom of the gas inflow side of the mixing tube, so that spillage can be prevented from accumulating in the mixing tube.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 has an ignition electrode and a thermocouple mounting part, and has a burner fixing fitting for fixing the burner part to the apparatus main body, and a burner cap mating opening formed by pressing a plate material into a concave shape. A head and a mixing pipe formed by bending a pipe material and provided with a caulking margin on the tip part on the burner head side, the mixing pipe provided with a notch or a hole above and below the gas inflow side tip part, by crimping white provided at the tip portion of the burner head side, and the burner head, which was constructed caulked integrally with the burner fixing bracket, ensuring the positioning of the ignition electrodes and the thermocouple and the burner head It can also, by providing a notch or hole in the top and bottom of the gas inlet side leading end portion of the mixing tube for mixing the gas and air sent into the tube, spilled boiled mixture tract Tama Ru can be prevented from.
[0013]
According to a second aspect of the present invention, there is provided a burner head having a burner cap mating opening formed by pressing a plate material into a concave shape, and a burner cap upper circular flange portion that forms a gas passage with a burner cap flame hole when the burner cap is mated. This is a configuration in which a cutout is provided in a portion facing the ignition electrode on the outer periphery, and serves as a positioning when the burner head is caulked while maintaining a spatial distance of the ignition electrode.
[0014]
The invention according to claim 3 covers the annular gap formed between the circular opening of the top plate installed and fixed on the counter of the kitchen and the burner portion protruding from the circular opening of the top plate. The ring cover for preventing the intrusion of the spill is held and positioned by the burner fixing bracket, and the ring cover can be held and positioned with a simple configuration without providing a separate part for fixing the ring cover.
[0015]
The invention according to claim 4 is a structure in which the means for holding the ring cover is a three-point protrusion provided on the horizontal portion of the upper portion of the burner fixing bracket, and a slight vertical gap is provided between the burner fixing bracket and the ring cover. It can be fixed in a floating state, and it is possible to make it difficult for spillage to accumulate on the burner fixing bracket.
[0016]
According to the fifth aspect of the present invention, the means for positioning the ring cover is a burner fixing metal fitting or a protrusion obtained by cutting or pressing the ring cover, and the ring cover can be prevented from rotating.
[0017]
The invention according to claim 6 covers the annular gap formed between the circular opening of the top plate installed and fixed on the counter of the kitchen and the burner portion protruding from the circular opening of the top plate. The ring cover for preventing the intrusion of the spill is held by a part of the press-molded burner head, and the ring cover can be held and positioned without providing a separate part for fixing the ring cover as in the second aspect of the invention. .
[0019]
【Example】
Next, an embodiment of the stove burner of the present invention will be described with reference to the drawings.
[0020]
Example 1
1 and 2 are a longitudinal sectional view and a top view of a stove burner according to a first embodiment of the present invention.
[0021]
1 and 2, the burner head 1 has a shape obtained by press-molding a plate material into a concave shape, and is provided with a notch 13a in a portion facing the ignition electrode 8 on the outer periphery of the upper circle portion. The bent end of the mixing tube 3 on the burner head 1 side is caulked together with the burner fixing bracket 2 and fixed to a burner mounting plate 4 fixed to an apparatus main body (not shown). Yes.
[0022]
The mixing tube 3 is provided with notches 13b at the top and bottom of the gas inflow side tip, and the damper 5 is fitted into the tip of the mixing tube 3 and is similarly cut into the air suction at the top and bottom of the outer periphery. Or a hole is provided.
[0023]
The nozzle 6 is fixed to the damper 5 at a position where a part of the tip is inserted. The burner cap 7 is mounted on the burner head 1, and the ignition electrode 8 and the thermocouple 9 are fitted and fixed to a mounting portion provided by bending a part of the burner fixing bracket 2 into a U shape.
[0024]
The top plate 10 is fixed on a kitchen counter (not shown), and the ring cover 11 is formed on three projections 12a provided on the upper horizontal portion of the burner fixing bracket 2 so that a gap is formed between the top cover 10 and the burner fixing bracket 2. In addition, the projection 12b provided by cutting and raising a part of the side surface is positioned and held with the top plate 10 and the gap 14a.
[0025]
Next, the operation and action will be described. The gas supplied from the nozzle 6 is mixed in the mixing tube 3 with the notch 13b formed by the damper 5 and the mixing tube 3 or the air sucked from the hole, and the burner It is supplied to the space formed by the head 1 and the burner cap 7.
[0026]
Then, it is ignited by an ignition electrode 8 at an ignition flame hole (not shown) of the burner cap 7, transferred to an adjacent thermocouple flame hole (not shown), and the thermocouple 9 is heated and turned off. Activates and burns to the entire circumference of the burner cap 7.
[0027]
At this time, the structure of the stove burner is such that the burner fixing bracket 2 provided with the ignition electrode 8 and the thermocouple 9 attachment portion and the burner head 1 are caulked together by the mixing tube 3, so that the burner head 1, the burner cap 7, the ignition electrode 8, and the thermocouple 9 can be reliably positioned, and good ignition performance and combustion performance can be obtained.
[0028]
Further, since the notch 13a is provided in the portion of the upper circle outer periphery of the burner head 1 facing the ignition electrode 8, a spatial distance between the ignition electrode 8 and the burner head 1 is ensured, and erroneous discharge can be prevented. The notch 13a provided on the outer periphery of the upper circular portion of the burner head 1 can be used for positioning the burner head 1 and the burner fixing bracket 2 when caulking the burner.
[0029]
The ring cover 11 is a donut-shaped press part, and has a role of preventing spillage from entering through the gap 14b between the burner portion and the top plate 10, and without increasing the number of parts by the fixing method of the ring cover 11. Positioning and fixing can be performed with a simple configuration.
[0030]
In addition, the external appearance of the gap 14b between the burner portion and the ring cover 11 is good and the appearance is good, and since it is not in contact with the top plate 10, vibration of the top plate 10 during cooking causes the ring cover 11 to vibrate. It is difficult to transmit and can be prevented from sounding due to vibration.
[0031]
In addition, since the ring cover 11 is held by three protrusions, the ring cover 11 is held in a well-balanced state, and a slight upper and lower gap 14c is provided between the burner fixing bracket 2 and the ring cover 11 to float. It can fix in a state, and it can make it hard to accumulate spilled on the burner fixing metal fitting 2.
[0032]
When spillage enters the mixing tube 3 through the burner cap 7 and the burner head 1a, the spillage is discharged from the mixing tube 3 and the lower notch 13b of the damper 5.
[0033]
In the first embodiment, the ring cover 21 is held by the burner fixing bracket 2a. However, a configuration in which another part for holding the ring cover 21 is provided between the burner head 1a and the burner fixing bracket 2a is also possible.
[0034]
(Example 2)
FIG. 3 is a longitudinal sectional view of the stove burner according to the second embodiment of the present invention.
[0035]
The difference from the first embodiment is that the ring cover 21 is held by the burner head 1a. In addition, the thing of the same code | symbol as Example 1 has the same structure, and abbreviate | omits description.
[0036]
【The invention's effect】
According to the stove burner according to the first aspect of the present invention, the ignition electrode and thermocouple can be reliably positioned with respect to the burner head, and since no erroneous discharge occurs, good ignition performance and combustion performance can be obtained . In addition, it is possible to prevent the spillage from being accumulated in the mixing tube and to prevent the mixing tube from being corroded, and to prevent the damper from being difficult to be removed due to the sticking of the spillage when the damper is replaced.
[0037]
According to the stove burner according to the second aspect of the present invention, by applying a jig to the notch, the burner head and the burner fixing bracket can be reliably positioned during caulking, and the spatial distance of the ignition electrode is further reduced. Since it can be maintained, there is an advantageous effect that erroneous discharge can be prevented and good ignition performance can be obtained.
[0038]
According to the stove burner according to claims 3, 4, 5 and 6 of the present invention, the ring cover can be held and positioned without providing a separate part for fixing the ring cover, and a gap is provided between the ring cover and the top plate. By providing it, sound can be prevented by vibration of the top plate, the top plate is not easily scratched, and further, there is no gap in appearance between the burner part and the ring cover. Effects can be obtained.
[0039]
According to the stove burner according to claim 4 of the present invention, since the ring cover is held by the three projections, the ring cover is held in a well-balanced manner even when the flatness of the ring cover is not obtained. A slight upper and lower gap is provided between them and can be fixed in a floating state, and an advantageous effect is obtained that it is possible to make it difficult for spillage to accumulate on the burner fixing bracket.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a stove burner according to Embodiment 1 of the present invention. FIG. 2 is a top view of the stove burner. FIG. 3 is a longitudinal sectional view of a stove burner according to Embodiment 2 of the present invention. ] Vertical sectional view of a conventional stove burner [Explanation of symbols]
1, 1a Burner head 2, 2a Burner fixing bracket 3 Mixing tube 4 Burner mounting plate 7 Burner cap 8 Ignition electrode 9 Thermocouple 10 Top plate 11, 21 Ring cover 12a, 12b Projection 13a, 13b Notch

Claims (6)

A burner fixing bracket that has an electrode for ignition and a thermocouple mounting part, and that fixes the burner part to the device body, a burner head that has a burner cap mating opening formed by pressing a plate material into a concave shape, and a pipe member that is bent A mixing tube formed and provided with a caulking margin at the tip end portion on the burner head side, the mixing tube being provided with a notch or a hole above and below the gas inflow side tip portion, A stove burner configured by caulking the burner head and the burner fixing bracket integrally with a caulking margin provided . The stove burner according to claim 1, wherein a cutout is provided in a portion facing the ignition electrode on the outer periphery of the upper circular flange portion of the burner head that forms a gas passage with the burner cap flame hole portion when the burner cap is engaged. The ring cover that covers the annular gap formed between the circular opening of the top plate installed and fixed on the counter of the kitchen and the burner protruding from the circular opening prevents the spillage from entering the burner. The stove burner according to claim 1, which is held and positioned by a fixing bracket. 4. The stove burner according to claim 3, wherein the means for holding the ring cover is a three-point protrusion provided on the upper horizontal portion of the burner fixing bracket. 4. The stove burner according to claim 3, wherein the means for positioning the ring cover is a protrusion formed by cutting and pressing the ring cover. A ring cover that covers the annular gap formed between the circular opening of the top plate that is installed and fixed on the counter of the kitchen and the burner protruding from the circular opening to prevent the entry of spills The stove burner according to claim 1, which is held by a part of a press-molded burner head.

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