TWI449868B - Stove burner - Google Patents

Description

Stove burner

The invention relates to a burner for a stove.

Since the past, there has been known a burner for a cooktop comprising: a burner body mounted on a panel; a burner cover mounted on an upper portion of the burner body; and a holder located at a lower portion of the panel and holding the nozzle; and a folder The burner body and the holder are connected to each other by a screw member (see Patent Document 1 below).

In the burner for a cooktop, the central portion of the back surface of the burner cover and the upper end of the throat are opposed to each other with a predetermined gap, and an annular cavity connected to the throat is formed, and at the same time, the outer periphery of the cavity A large number of flame holes are formed in the portion so as to have a space in the circumferential direction.

Further, when the nozzle disposed under the throat sprays the gas toward the lower end opening of the throat, the air is sucked together with the gas from the lower end opening of the throat, and the gas and the primary air are mixed in the throat, and the mixture is mixed from the throat. The upper end is supplied to the flame hole through the cavity. With this configuration, there is an advantage that the burner can be made compact and lightweight.

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 2006-526126

However, in the above-described conventional burner for a stove, since the burner main body and the holder are coupled by the screw member across the panel, assembly between the burner body and the holder occurs due to slack of the screw member or the like. When the error or deviation occurs, the axis of the nozzle and the axis of the throat are misaligned, and the mixing of the gas at the throat and the primary air is insufficient, which may cause poor combustion.

Further, when cleaning or the like is performed, when the burner main body is removed from the panel, it is necessary to loosen the screw member to release the connection between the burner main body and the holder, and the operation is complicated. Further, after the cleaning process, the screw member is used to connect the burner main body and the holder, and there is a problem that the operation is troublesome.

Further, in the above-described conventional burner for a stove, the connection position at which the burner main body and the holder are coupled by the screw member is at a position very close to the flame hole, and the heat of the burner body is transmitted to the holder through the high temperature state. Therefore, the nozzle held by the holder is thermally expanded by heat, and the diameter of the nozzle changes in accordance with the thermal expansion or the like. Affected by this, the gas does not reach the desired amount of injection, resulting in a failure to obtain good combustion.

In view of the above problems, an object of the present invention is to provide a burner for a stove which is simple in structure and capable of obtaining good combustion and which has a simple structure.

A burner for a cooktop according to the present invention includes: a burner main body having a cylindrical throat extending through a disk-shaped bottom portion in a vertical direction; and a burner cover arbitrarily attached to the burner body Forming a plurality of flame holes on the outer circumference; and holding the holder to hold the burner body in an arbitrarily detachable manner; and the holder comprises: a base having a nozzle for injecting gas upward; and a support plate erected at the base a side plate extending laterally from the support plate, opposite to the base portion, supporting the burner body at a position away from the base portion; and a throat insertion fixing portion formed on the seat plate, the insertion being fixed by the a throat portion of the burner body supported by the seat plate; and the base portion and the seat plate are integrally formed with the support plate; wherein the seat plate of the retaining device is provided with a seated upwardly extending beyond the insertion portion of the throat portion a cylindrical protrusion of the panel supporting the burner body by positioning a bottom of the burner body at an upper edge of the protrusion; and the protrusion has a portion formed at a position thereof Mouth; the burner body having a projection to be engaged with the cutout portion positioned at a position on the bottom thereof; and provided with a cutout of the outer side of the cover is formed integrally with the projecting portion of the projecting wall portion on the portion.

The burner for a cooktop of the present invention can hold the burner body on the holder only by inserting the throat of the burner body into the throat insertion fixing portion. Therefore, it is not necessary to perform an operation of fixing with a screw as in the prior art, and it is possible to prevent a decrease in assembly precision when the screw is fixed. Moreover, it is possible to perform processing such as cleaning simply. Further, since the base portion, the support plate, and the seat plate constituting the holder are integrally formed, the number of components is small, the structure is simple, and the burner for a stove can be easily made small and lightweight.

Further, since the base portion of the holder, the support plate, and the seat plate are integrally formed, the nozzle and the throat insertion fixing portion provided on the base portion are not displaced. Also, when the throat of the burner body is inserted into the throat insertion fixing portion, the movement of the throat is restricted by the throat insertion fixing portion. Therefore, there is no offset between the throat and the nozzle. Therefore, when the burner main body is placed on the holder, since the throat and the nozzle can be positioned with extremely high precision, it is possible to reliably prevent the deviation of the throat and the nozzle from being produced. The raw burnt.

Further, the throat of the burner body held by the holder is in contact only with the throat insertion fixing portion provided at a part of the seat plate of the holder. Therefore, compared with the structure in which the burner body and the holder are connected at a position very close to the flame hole in the related art, it is possible to suppress heat transfer from the burner body to the holder, and to prevent a change in the nozzle diameter due to heating of the nozzle. Can get good combustion.

Since the projection is provided on the seat plate of the holder and the burner body is placed on the upper end edge of the projection, the contact portion between the outer peripheral portion of the throat of the burner body and the projection of the holder is extremely small. The amount of heat transferred to the holder by the burner main body is reduced, and variation in the nozzle diameter due to thermal expansion of the nozzle can be suppressed.

Further, since the protruding portion is provided to protrude from the seat plate of the holder, for example, the protruding portion can protrude above the panel. Thereby, the protruding portion can be easily visually confirmed in a state where the burner main body is removed from the holder. Therefore, when the burner main body is attached to the holder after the cleaning or the like, the throat of the burner main body can be reliably inserted into the throat insertion fixing portion while visually reflecting the protruding portion, and the operation can be extremely easily performed. The operation of the burner body to the holder. Further, due to the presence of the protruding portion, it is difficult for foreign matter such as soup to intrude into the inside of the holder, and it is possible to prevent foreign matter from adhering to the nozzle.

Thereby, after the burner main body is placed on the holder, since the engaged portion of the burner main body engages with the engaging portion of the protruding portion, it is possible to prevent the burner main body from being unexpectedly rotated with respect to the holder. Therefore, the state in which the burner main body is held by the holder can be maintained with high precision without using the screw member or the like used in the prior art.

Further, the protruding portion is provided with a wall portion that covers the outside of the notch and is integrally formed with the protruding portion. Therefore, if the soup splashed from the pot flows onto the panel and approaches the notch of the protruding portion, it is also prevented by the wall portion from invading the inside of the stove.

Further, in this case, the protruding portion preferably includes an abutting portion that abuts against the bottom of the burner body and a non-contact portion that does not come into contact with the bottom of the burner body.

According to this, since the non-contact portion does not come into contact with the bottom of the burner main body, the contact surface of the burner main body and the holder is actively small. Therefore, heat transfer to the nozzle can be reliably suppressed.

Further, for example, during heating cooking, even if the soup splashed from the pot enters the bottom side of the burner body, since the contact surface between the burner main body and the holder is less active, the burner body and the holder can be prevented. Due to the consolidation caused by the soup, the burner body can be smoothly removed from the holder. Therefore, it is possible to easily perform an operation at the time of cleaning or the like.

Further, in the present invention, the burner for a range is characterized in that the spark plug is held by the support plate of the holder, and the spark is plugged between the target and the target projecting from the lower surface of the end of the burner cover. The spark discharge is performed, and the burner main body has a concave portion that accommodates at least a part of the spark plug on the peripheral wall portion thereof.

By accommodating at least a part of the spark plug in the recess provided in the burner body, it is possible to avoid the influence of the soup dripping from above and maintain the good work of the spark plug.

Further, for example, when the burner body is intended to be placed on the holder in a state where the concave portion of the burner main body and the phase of the spark plug do not match, a part of the spark plug accommodated in the concave portion may interfere with the burner main body. Therefore, the operation of disposing the burner body to the holder is hindered, so that the operator can be surely noticed that the phase difference between the recess and the spark plug is inconsistent, prompting the operator to perform positioning between the recess and the spark plug, thereby It is possible to prevent misplacement of the burner body.

X‧‧‧ gap

1‧‧‧ stove body

2‧‧‧ panel

3‧‧‧ burner opening

4‧‧‧burner burner

5‧‧‧burner body

6‧‧‧ burner cover

7‧‧‧Guodard

8‧‧‧ bottom

9‧‧‧ throat

10‧‧‧Walls

11‧‧‧Upper extension

12‧‧‧Under extension

13‧‧‧洼

14‧‧‧Protrusion (to be engaged)

15‧‧‧ recess

16‧‧‧Mars plug

17‧‧‧The wall

18‧‧‧ cavity

19‧‧‧Ignition flame hole

20‧‧‧Small flame hole

21‧‧‧General flame holes

22‧‧‧Auxiliary flame hole

23‧‧‧Ignition target

24a‧‧‧First positioning claw

24b‧‧‧Second positioning claw

25‧‧‧ positioning recess

26‧‧‧ pedestal

27‧‧‧Substrate

28‧‧‧Support board

29‧‧‧ seat board

30‧‧‧ gas passage

31‧‧‧Nozzles

32‧‧‧ gas injection port

33‧‧‧ Holding Department

34‧‧‧ thermocouple

35‧‧‧ throat insertion and fixation

36‧‧‧Protruding

36a‧‧‧Apartment

36b‧‧‧ Non-contact department

37‧‧‧Gap (Interaction)

38‧‧‧ wall

Fig. 1 is a schematic cross-sectional view showing a burner for a cooker of a reference example.

2 is a bottom view of the burner body.

Fig. 3 is a plan view showing a state in which a burner cover is removed from a burner for a stove.

Fig. 4 is a perspective view showing a part of the burner for a stove in an exploded manner.

Fig. 5 is a perspective view showing the retainer and the burner body in an exploded manner.

Fig. 6 is a side view showing a state in which a burner main body and a spark plug interfere with each other.

Fig. 7 is a plan view schematically showing a main part of a burner for a cooker according to an embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view showing a main part of a burner for a cooker according to an embodiment of the present invention.

First, a reference example having a configuration common to the embodiment of the present invention will be described with reference to Figs. 1 to 6 . In Fig. 1, reference numeral 1 denotes a part of a cooktop (bottom) of a gas cooktop. The cooktop main body 1 has a box-shaped structure (not shown) whose upper surface is open, and the panel 2 is placed on the upper surface of the open cooktop main body 1. An opening 3 for the burner is opened in the panel 2, and a burner 4 for the burner is provided, which passes through the opening 3 for the burner and is exposed above the panel 2. Also. Although not shown, a flame holder is placed on the panel 2 around the burner opening 3, and a cooking container such as a pot is placed on the flame holder, and heating can be performed.

As shown in FIG. 1, the burner 4 includes a burner body 5 located above the panel 2, a burner cover 6 placed on the burner body 5, and a holder 7 located on the panel 2 Below the burner body 5 is held.

The burner cover 6 is detachably attached to the burner main body 5, and the burner main body 5 is detachably attached to the holder 7. Thereby, after the burner main body 5 and the burner cover 6 are removed from the holder 7, the cleaning and the like can be easily performed.

The burner body 5 is composed of a disk-shaped bottom portion 8, a cylindrical throat portion 9, and an annular peripheral wall portion 10. The throat portion 9 extends through the center of the bottom portion 8 and extends in the vertical direction. The peripheral wall portion 10 is erected on the outer peripheral edge portion of the bottom portion 8. The throat 9 is composed of an upper extension 11 extending upward from the bottom portion 8 and a lower extension portion 12 extending downward from the bottom portion 8. An opening is formed at the upper and lower ends.

In Fig. 2, when the burner body 5 is viewed from the bottom side, the bottom portion 8 of the burner body 5 is formed with a plurality of crotch portions 13 disposed in the circumferential direction of the lower extension portion 12 and adjacent to a portion of the lower extension portion 12 The protrusion 14 is provided. Further, a recess 15 is formed in the peripheral wall portion 10 of the burner body 5. As shown in FIGS. 1 and 3, the recess 15 accommodates a part of the spark plug 16 to be described later.

As shown in FIG. 1, the burner cover 6 is provided with a cylindrical wall portion 17 that is placed on the upper surface of the peripheral wall portion 10 of the burner body 5. A plurality of grooves of different sizes and different depths are formed on the cylindrical wall portion 17. These grooves have a space in the circumferential direction of the cylindrical wall portion 17.

When the burner cover 6 is placed on the burner body 5, the upper portion of the burner body 5 is covered by the burner cover 6. The upper end of the upper extension portion 11 of the throat portion 9 faces the back surface of the burner cover 6, and there is a predetermined gap therebetween. Further, an annular cavity portion 18 is formed between the upper extension portion 11 and the peripheral wall portion 10 of the throat portion 9. Further, the groove formed in the tubular wall portion 17 of the burner cover 6 constitutes a hole by the peripheral wall portion 10 of the burner body 5, and a large number of flame holes are formed in the outer peripheral portion of the cavity portion 18.

These flame holes are briefly described. As shown in FIG. 1 and FIG. 4, a small groove having a large width is formed in a portion of the burner cover 6 that faces the concave portion 15, and an ignition hole 19 is formed on the upper surface of the peripheral wall portion 10 of the burner main body 5. . Also. The cylindrical wall portion 17 of the burner cover 6 is formed with three continuous small grooves in a portion in the same direction as the flame holder claw of the flame holder (not shown). A small flame hole 20 is formed in the peripheral wall portion 10 of the burner body 5 by these small grooves. So, prevent the flame from coming into contact with the flame The bracket claws cause poor combustion. At a portion corresponding to the position between the wall portion 17 of the burner cover 6 and the flame holder claw, large grooves and small grooves are alternately formed. A general flame hole 21 is formed in the peripheral wall portion 10 of the burner body 5 by a large groove, and an auxiliary flame hole 22 is formed in the peripheral wall portion 10 of the burner body 5 by a small groove.

Further, as shown in FIG. 4, the burner target 23 is protruded from the burner cover 6 on the back side corresponding to the concave portion 15 of the peripheral wall portion 10 of the burner body 5.

Further, three first positioning claws 24a are formed at positions on the back side of the burner cover 6 corresponding to the upper extension portion 11 of the burner body 5. The first positioning claw 24a abuts against the outer circumferential surface of the upper extension portion 11 for determining the axial center position of the burner cover 6. Due to the presence of the first positioning claw 24a, the unexpected deviation of the burner cover 6 placed above the burner body 5 is prevented. Further, on the back side of the burner cover 6, a second positioning claw 24b is formed. The second positioning claw 24b extends downward at a predetermined position inside the cylindrical wall portion 17. The burner cover 6 placed on the burner body 5 is positioned by engaging the second positioning claw 24b with the positioning recess 25 formed on the burner main body 5. Thereby, an unexpected rotation of the burner cover 6 with respect to the burner body 5 is prevented.

As shown in FIG. 1, the holder 7 is composed of a substrate 27, a support plate 28, and a seat plate 29. The substrate 27 is mounted on a pedestal 26 provided on the cooktop body 1; a support plate 28 is erected on one side of the base 27; and a seat plate 29 is cantilevered by the support plate 28. The base portion 27, the support plate 28, and the seat plate 29 are integrally formed by a metal block such as an aluminum alloy.

The base 27 of the holder 7 is formed with a gas passage 30 for gas therein. A nozzle 31 communicating therewith is mounted above the gas passage 30. The nozzle 31 has a gas injection port 32 that vertically injects gas upward.

When the burner main body 5 is placed on the holder 7, the throat portion 9 is opposed to the gas injection port 32 at the tip end of the nozzle 3, so that the gas can be injected into the lower end opening of the throat portion 9. When the nozzle 31 injects gas to the lower end opening of the lower extension portion 12 of the throat 9, air is introduced into the throat 9 while air is introduced from the periphery, and the gas and the primary air are at the throat 9. Mixing produces a mixture. This mixed gas flows out from the upper end opening of the upper extension portion 11 of the throat portion 9 and collides with the back surface of the burner cover 6. The mixture that collides with the back surface of the burner cover 6 passes through the gap between the upper end of the upper extension portion 11 and the back surface of the burner cover 6, and then diffuses in the radial direction along the back surface of the burner cover 6, and is evenly distributed via the cavity portion 18. The state flows to the respective flame holes.

As shown in FIGS. 3 and 5, a holding portion 33 is integrally formed on the support plate 28 of the holder 7. The spark plug 16 and the thermocouple 34 are held by the holding portion 33. The spark plug 16 performs a spark discharge between the burner cover 6 and the target 23, and the thermocouple 34 is located outside the burner body 5 for detecting the flame.

As shown in FIGS. 1 and 5, the seat plate 29 is provided with a throat insertion fixing portion 35. The lower extension portion 12 of the throat portion 9 of the burner body 5 is detachably inserted into the throat insertion fixing portion 35 and fixed. Further, a cylindrical projecting portion 36 is formed on the seat plate 29. The protruding portion 36 is formed in an annular shape along the outer circumference of the throat insertion fixing portion 35, and protrudes above the seat plate 29. The throat insertion fixing portion 35 and the protruding portion 36 continue in the same inner diameter, and the outer peripheral upper end of the lower extension portion 12 and the inner peripheral upper end of the protruding portion 36 are in line contact. Further, as shown in FIG. 1, the protruding portion 36 of the seat plate 29 protrudes above the panel 2 through the burner opening 3 of the panel 2, and the upper surface of the seat plate 29 abuts against the back surface of the panel 2. Further, although not shown, the seat plate 29 and the panel 2 are connected to each other by a screw member or the like. Further, since the panel 2 is provided after the cooktop main body 1 is attached to the table top, the protruding portion 36 is also provided as the positioning portion of the panel 2, and the advantage of providing the panel 2 can be smoothly performed.

As shown in FIGS. 1 and 5, a notch 37 is formed in the protruding portion 36. Further, when the burner main body 5 is held by the holder 7, the lower extension portion 12 side of the burner main body 5 is inserted into the throat insertion fixing portion 35 of the seat plate 29, and the projections 14 and the notches of the burner main body 5 are made. 37 snaps while allowing the bottom 8 of the burner body 5 to be seated The upper end edge of the projection 36 of the plate 29 is located. Further, the notch 37 and the projection 14 correspond to the engaging portion and the engaged portion of the present invention.

Thereby, the burner body 5 is positioned and centered with respect to the holder 7, and the nozzle 31 is positioned relative to the throat 9. Moreover, the recess 15 of the burner body 5 is positioned at a position corresponding to the spark plug 16. At this time, since the base portion 27, the support plate 28, and the seat plate 29 constituting the holder 7 are integrally formed by the metal block, the nozzle 31 and the throat insertion fixing portion 35 provided on the base portion 27 are not displaced. Further, since the lower extension portion 12 of the throat portion 9 of the burner main body 5 is inserted into the throat insertion fixing portion 35 to be restricted, no deviation occurs between the lower extension portion 12 of the throat portion 9 and the nozzle 31. Therefore, when the burner body 5 is placed on the holder 7, the throat 9 and the nozzle 31 are positioned with relatively high precision. Therefore, it is possible to reliably prevent the misalignment accompanying the throat portion 9 and the nozzle 31, resulting in poor combustion.

Further, when the burner main body 5 transmits heat of a relatively high temperature to the nozzle 31, the diameter of the gas injection port 32 changes due to the influence of thermal expansion or the like of the nozzle 31, and the gas cannot reach the required injection amount, which may result in failure to obtain The amount of combustion required. Since the holder 7 is integrally formed by the base portion 27, the support plate 28, and the seat plate 29, the number of components is small and compact. On the other hand, however, it is considered that the heat of the burner body 5 is transmitted to the nozzle 31 of the base portion 27 via the seat plate 29 of the holder 7 and the support plate 28.

However, in the configuration of the above-mentioned reference example, not only the outer peripheral upper end of the lower extension portion 13 of the throat portion 9 of the burner main body 5 but the upper end of the inner peripheral portion of the projection portion 36 provided at a part of the seat plate 29 of the holder 7 is merely Line contact. Further, the seat plate 29 of the holder 7 is at a position away from the flame hole of the burner body 5. Here, the throat portion 9 is provided at a position relatively away from the peripheral wall portion 10 where the flame hole is formed. Thereby, it is possible to suppress the heat transfer of the burner main body 5 to the holder 7 as compared with the configuration in which the burner main body and the holder are connected to the position closest to the flame hole as in the conventional gas cooker. Moreover, since the burner body 5 provided on the holder 7 is placed at the seat formed on the holder 7 On the upper end edge of the projection 36 on the plate 29, the contact portion of the burner body 5 and the holder 7 is extremely small. Therefore, heat transfer from the combustor body 5 to the nozzle 31 can be reduced, and variation in the diameter of the gas injection port 32 due to thermal expansion of the nozzle 31 can be suppressed.

Further, as shown in FIG. 2, a plurality of crotch portions 13 are formed on the bottom portion 8 of the burner main body 5 in the circumferential direction of the lower extension portion 12. Therefore, since the abutting portion 36a and the non-contact portion 36b abutting against the bottom portion 8 of the burner main body 5 are formed on the upper end edge of the protruding portion 36 (indicated by a hypothetical line in Fig. 2), the burner main body 5 and the holding portion are held. The contact area of the strip 7 is further reduced. Here, the non-contact portion 36b refers to a portion where the protruding portion 36 does not come into contact with the bottom portion 8 of the burner main body 5 due to the presence of the crotch portion 13 of the burner main body 5. Thereby, the heat transfer to the nozzle 31 is made extremely small, and the heat is prevented from affecting the gas injection port 32 to change its diameter, so that good combustion can be obtained. Further, at the time of heating and cooking, even if the soup sprayed from the pot flows into the bottom portion 8 side of the burner main body 5, since the contact area is small, it is possible to prevent the soup body 5 and the holder 7 from being solidified by the soup. Processing such as picking up and cleaning is simple. Further, in the configuration of the above-described reference example, an example in which the crotch portion 13 is provided on the bottom portion 8 of the burner main body 5 to form the non-contact portion 36b is also proposed, and in addition to this, the bottom portion 8 of the burner main body 5 may be provided. It is flat, and a plurality of notches are provided at the upper end of the protruding portion 36 to form a non-contact portion.

Further, since only the protruding portion 36 provided on the seat plate 29 of the holding member 7 protrudes above the panel 2, in a state where the burner main body 5 is removed from the holder 7, the protruding portion 36 can be simply visually observed. Undergo verification. Thereby, when the burner main body 5 is placed on the holder 7 after the cleaning or the like, the lower extension portion 12 of the burner 5 can be accurately inserted into the throat insertion fixing portion 35 via the protruding portion 36, The operation of arranging the burner body 5 on the holder 7 can be performed extremely simply. Moreover, the operation of attaching the burner main body 5 to the holder 7 can be completed simply by inserting the lower extension portion 12 of the burner main body 5 into the throat insertion fixing portion 35 via the protruding portion 36 protruding from the panel 2. No need to proceed like in the prior art The screw fixing operation also prevents the problem of low mounting accuracy due to screw fixing.

Further, after the burner main body 5 is placed on the holder 7, since the projection 14 of the burner main body 5 and the notch 37 of the protruding portion 36 are engaged, it is possible to prevent the burner main body 5 from being unexpectedly rotated with respect to the holder 7.

Further, when cooking using a gas stove, the broth sprayed from the pot onto the panel 2 may flow below the burner main body 5 and flow to the protruding portion 36. At this time, when the notch 37 is formed in the protruding portion 36 of the holder 7, it is conceivable that the soup will flow into the inside of the throat insertion fixing portion 35 via, for example, the notch 37, which may cause the soup to intrude into the body 1 of the stove. internal.

Therefore, in the present embodiment, not only the configuration of the above-described reference example but also the wall portion 38 covering the outside of the notch 37 is provided in the protruding portion 36 as shown in FIGS. 7 and 8. Thereby, the wall portion 38 covers the outer side of the notch 37, and the soup which is sprayed onto the panel 2 can be prevented, and the infusion of the soup into the inside of the stovetop main body 1 can be prevented.

Further, as shown in FIG. 8, it is preferable to set the height of the wall portion 38 such that a slight gap x (for example, about 0.5 mm) is formed between the upper end edge of the wall portion 38 and the bottom portion 8 of the burner body 5. Thereby, it is possible to prevent the contact area between the burner main body 5 and the holder 7 from increasing along with the installation of the wall portion 38, and it is possible to prevent the effect of the non-contact portion 36b formed by the crotch portion 13 from being hindered.

Further, as shown in FIG. 1, the recess 15 provided on the burner body 5 can accommodate at least a part of the spark plug 16. Thus, when the burner body 5 is intended to be placed on the holder 7 in a state where the concave portion 15 of the burner body 5 and the phase of the spark plug 16 do not match, as shown in FIG. 6, the spark plug 16 will burn with The main body 5 generates interference and hinders the operation, so the operator can be alerted to whether the phase between the recess 15 and the spark plug 16 is inconsistent, prompting the operator to perform the between the recess 15 and the spark plug 16. The positioning makes it possible to prevent the burner body 5 from being misplaced.

1. . . Stove body

2. . . panel

3. . . Burner opening

4. . . Stove burner

5. . . Burner body

6. . . Burner cover

7. . . Holding tool

8. . . bottom

9. . . Throat

10. . . Peripheral wall

11. . . Upper extension

12. . . Lower extension

13. . . Crotch

14. . . Protrusion (engaged portion)

15. . . Concave

16. . . Mars plug

17. . . Wall

18. . . Cavity

19. . . Ignition flame hole

20. . . Small flame hole

twenty one. . . General flame hole

twenty two. . . Auxiliary flame hole

twenty three. . . Ignition target

24a. . . First positioning claw

24b. . . Second positioning claw

26. . . Pedestal

27. . . Substrate

28. . . Support plate

29. . . Base plate

30. . . Gas passage

31. . . nozzle

32. . . Gas injection port

33. . . Holding unit

35. . . Throat insertion fixation

36. . . Protruding

37. . . Notch (engagement part)

Claims (3)

A burner for a cooktop comprising: a burner body having a cylindrical throat extending through a disk-shaped bottom portion in an up-and-down direction; and a burner cover mounted on the burner body in an arbitrarily detachable manner Forming a plurality of flame holes on the outer circumference; and holding the holder to hold the burner body in an arbitrarily detachable manner; and the holder comprises: a base having a nozzle for injecting gas upward; and a support plate erected at the base a side plate extending laterally from the support plate, opposite to the base portion, supporting the burner body at a position away from the base portion; and a throat insertion fixing portion formed on the seat plate, inserted and fixed by the seat plate a throat portion of the burner body supported by the plate; and the base portion and the seat plate are integrally formed with the support plate; wherein the seat plate of the retainer has a circumferentially upwardly protruding portion extending through the throat insertion portion to penetrate the cooktop panel a cylindrical protrusion; supporting the burner body by positioning a bottom of the burner body at an upper edge of the protrusion; and the protrusion has a defect formed at a portion thereof ; The burner body having a projection to be engaged with the cutout portion positioned at a position on the bottom thereof; and provided with a cutout covering the outside of the wall portion and the protruding portion integrally formed with the projecting portion on. The burner for a cooktop according to claim 1, wherein the protrusion comprises: an abutting portion abutting the bottom of the burner body; and a non-contact portion not contacting the bottom of the burner body. A burner for a cooktop according to claim 1 or 2, wherein the spark is sparked between the target protruding from the lower surface of the end of the burner cover The plug is held by a support plate of the holder, and the burner body is provided on a peripheral wall portion thereof with a recess that accommodates at least a portion of the spark plug.