JP2008008596A - Cookstove burner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cookstove burner which does not need to form a through hole for inserting a rivet or a screw in a burner cover. <P>SOLUTION: In the cookstove burner 4, a burner cap 2 is placed on an annular burner body 1 to provide flame holes, the burner cover 3 covering a top face 2a of the burner cap 2 at a predetermined interval is arranged on the top face 2a of the burner cap 2, and air introduced to a top face 2a side of the burner cap 2 through a vertical opening 42 vertically opened in centers of the burner body 1 and the burner cap 2 is passed between the top face 2a of the burner cap 2 and the burner cover 3, and guided to an outer circumference part of the burner cap 2. A support securing part 5 for carrying out support and securing of the burner cover 3 is provided in the top face 2a of the burner cap 2, and a support part 6 secured to the support securing part 5 of the burner cap 2 for supporting the burner cover 3 is provided in a lower face 3b of the burner cover 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a stove burner.

  The stove burner is formed so that an annular burner cap is placed on the burner body provided with an annular mixing chamber for mixing gas and primary air, and a flame opening is provided on the outer periphery thereof. Has been. The lower surface of the burner cap is formed with a flaming groove opening downward, and the space between the flaming groove and the upper surface of the burner body is a mixture chamber in which gas and primary air are mixed. A large number of flame openings are arranged in the outer periphery of the burner cap as a mixed gas flow path. It is also possible to form a flame opening groove in the burner body and to arrange the flame openings in the outer periphery of the burner body.

  A burner cover is attached to the burner cap so as to cover substantially the entire upper surface of the burner cap. The stove burner supplies air from the upper and lower openings provided in the center of the burner body and burner cap as well as air around the flame opening as secondary air to the vicinity of the flame opening through the space between the burner cap and burner cover. As a result, the flame is efficiently burned at the flame outlet, and the burner cover prevents the spilled spilling directly from the pan or the like on the upper surface of the burner cap (see, for example, Patent Document 1).

  By the way, in the conventional stove burner as shown in the above-mentioned Patent Document 1, the burner cover is attached to the burner cap as shown in FIG. 16 by attaching the locking body 31 ′ formed on the burner cover 3 ′ to the burner cap 2 ′. The hook is hooked on the locking support shaft 21 'protruding upward, and the hook or screw is inserted from above the hook or screw mounting through-hole 4' formed on the burner cover and fixed on the burner cap. This is done by fixing to the support shaft 5 '.

In this conventional example, since a through hole for inserting a ridge or a screw is formed in the burner cover, there is a risk that the spilled liquid falling into the burner cover may enter the burner cap from the through hole. In addition, there is a possibility that the part of the through-hole and the jar or screw may be corroded by the boiled juice that has fallen into the burner cover. In addition, there is a problem that the cost increases due to an increase in the number of parts due to the need for hooks or screws.
JP 2003-83512 A

  The present invention has been invented in view of the above-described conventional problems, and the object of the present invention is to eliminate the need to form a through hole for inserting a scissors or a screw in the burner cover. By inserting a bowl or a screw into the formed through hole and fixing it to the burner cap, the broth penetrates into the burner cap from the through hole, or the part of the through hole of the burner cover and the bowl or screw are corroded by the broth. If you look at the burner cover from above, you will see wrinkles or screws and the design will be bad, or you will need wrinkles or screws and the number of parts will increase and the cost will increase. It is an object to provide a stoveless burner.

  In order to solve the above-mentioned problem, the invention according to claim 1 of the present invention is such that an annular burner cap 2 is mounted on the burner base 11 of the annular burner body 1 and the outer peripheral portion of the burner cap 2 and / or the burner. A flame opening (main flame opening 22 and flame holding opening 29) is provided on the outer periphery of the base 11, and a burner cover 3 covering the upper surface 2a of the burner cap 2 is disposed on the upper surface 2a of the burner cap 2 at a predetermined interval. Then, the air introduced into the upper surface 2a side of the burner cap 2 through the upper and lower openings 42 opened up and down in the center of the burner body 1 and the burner cap 2 is interposed between the upper surface 2a of the burner cap 2 and the burner cover 3. In the stove burner 4 that is guided to the outer peripheral portion of the burner cap 2 through the support, a support locking portion 5 for supporting and locking the burner cover 3 is provided on the upper surface 2a of the burner cap 2. And a supported locking portion 6 for supporting the burner cover 3 by being locked to the support locking portion 5 of the burner cap 2 on the lower surface 3b of the burner cover 3. It is.

  By adopting such a configuration, it is not necessary to form a through-hole 4 ′ as in the conventional example for inserting a bowl or a screw into the burner cover 3, and the boiled juice spilled into the burner cover 3 is passed through the through-hole 4. When the burner cap 2 enters the burner cap 2, the portion of the through-hole 4 'and the bowl or screw are corroded by the broth that has fallen into the burner cover 3, or when the burner cover 3 is viewed from above. Or, there is no such thing as the appearance of screws and poor design, or the need for hooks or screws, which increases the number of parts and increases costs.

  The invention according to claim 2 is the invention according to claim 1, wherein a plurality of support locking portions 5 of the burner cap 2 and supported lock portions 6 of the burner cover 3 are provided in the circumferential direction. The burner cover 3 is engaged with the support latching portion 5 and the supported latching portion 6 from the side to prevent it from coming off in the vertical direction, and in the engaged state, the burner cover 3 is centered on the engaged portion. A side engaging part 5a and a side engaged part 6a that can be rotated are provided, and the remaining supporting and locking parts 5 and 6 are engaged in the vertical direction to the side. The upper and lower engaging portions 5b and the upper and lower engaged portions 6b are provided so as to prevent the detachment.

  With such a configuration, the burner cover 3 can be easily attached to and detached from the burner cap 2, and the burner cover 3 is not detached from the burner cap 2 by itself.

  Further, the invention according to claim 3 is the invention according to claim 2, in which three support locking portions 5 of the burner cap 2 and supported lock portions 6 of the burner cover 3 are provided at intervals of approximately 120 ° in the circumferential direction. Two of the support locking portions 5 are provided so as to protrude upward from the upper surface 2a of the burner cap 2 and continuously from the upper end of the standing piece 52 outward. The side engaging portion 5a including the lateral piece 53 is provided, and the supported engaging portion 6 corresponding to the supporting engaging portion 5 provided with the side engaging portion 5a is moved downward from the lower surface of the burner cover 3. A side-engaged portion 6a composed of a hanging piece 62 suspended from the bottom and a lateral piece 60 connected inward from the lower end of the hanging piece 62 is provided. The sandwiched piece 51 protruding upward from the upper surface 2a of the burner cap 2 and the upper end portion of the sandwiched piece 51 are connected in a substantially horizontal direction. Then, the upper and lower engaging portions 5b including the mounting piece 54 having the upper surface serving as the mounting surface of the burner cover 3 and the notch 54a in which the positioning piece 61 is inserted and positioned are provided. A positioning piece 61 that hangs downward from the lower surface 3b of the burner cover 3 and a lower end portion of the positioning piece 61 are connected to the supported locking portion 6 corresponding to the provided support locking portion 5 outward. The upper and lower engaged portions 6b including the retaining pieces 63 are provided, and the laterally engaged portions 6a of the supported engaging portions 6 of the burner cover 3 are engaged with the side engaging portions 5 of the burner cap 2. After engaging the portion 5a, the upper and lower engaging portions 5b of the remaining support locking portion 5 of the burner cover 3 are engaged with the upper and lower engaged portions 6b of the remaining supported locking portion 6 of the burner cap 2. Then, the sandwiched piece 51 and the positioning piece 61 are sandwiched by the clip pins 7 and formed. It is characterized by that.

  By setting it as such a structure, the support latching | locking part 5 and the to-be-supported latching | locking part 6 can be formed with a simple structure.

  Since the present invention is configured as described above, it is not necessary to form a through hole for inserting a ridge or a screw in the burner cover, and the broth spilled into the burner cover enters the burner cap from the through hole. The part of the through-hole and the cocoon or screw may be corroded by the broth that has fallen into the burner cover, or the design will deteriorate when the burner cover is viewed from above. Therefore, there is no such thing as an increase in the number of parts due to the necessity of hooks or screws, resulting in high costs.

  Hereinafter, the example which used the stove burner of this invention for the gas cooker is demonstrated based on embodiment shown to an accompanying drawing.

  As shown in FIG. 8, the gas cooker 8 includes three gas stoves 82 on a top plate 81. As shown in FIGS. 9 and 10, the stove burner 4 provided in each gas stove 82 has a main body configured by detachably mounting the burner cap 2 on the mixing chamber 10 of the burner body 1. Yes. The stove burner 4 includes a large burner 4a, a standard burner 4b, and a small burner 4c corresponding to the three gas stoves 82, respectively. The large burner 4a, the standard burner 4b, and the small burner 4c have basically the same structure, and the large burner 4a to which the stove burner 4 of the present invention is applied will be described below.

  The stove burner 4 is exposed on the top plate 81 from a through hole 85 of a top plate 81 such as a glass top plate, and an annular burner ring 86 between the burner body 1 and the through hole 85 of the top plate 81. Is intervening. Specifically, the burner ring 86 and the top plate 81 are fixed in a watertight structure via a packing 87 provided on the burner ring 86, and the burner body 1 and the burner ring 86 are watertight via a packing 18 provided on the burner body 1. It is fixed by the structure, that is, the burner body 1 and the top plate 81 are fixed by a watertight structure to prevent the soup from falling down from the top plate 81.

  Further, the virtues 88 are placed on the top plate 81 of the gas cooker 8 so as to surround the through hole 85. Specifically, Gotoku 88 has an annular leg 88a to be placed on the top plate 81, and a plurality of claws for projecting upward and centrally from any part of the leg 88a to place a cooking tool such as a pan. 88b, and the locking portion provided on the leg portion 88a is locked to the locked portion of the burner ring 86 attached to the top plate 81. It is placed on the top plate 81. Further, in the standard burner 4b instead of the large burner 4a described above, an opening is formed in the burner cover 3 described later, and the pan bottom temperature sensor S is placed facing upward through the opening. The pan bottom temperature sensor S detects the temperature of the pan bottom when the pan is installed on the stove burner 4, and various controls of the combustion of the stove burner 4 can be performed according to the detected temperature.

  As shown in FIGS. 9 and 10, the burner body 1 integrally has a mixing tube 83. In this example, the burner body 1 and the mixing tube 83 are formed of an aluminum die cast product such as ADC12. is there. A gas nozzle 84 that discharges gas as fuel is disposed at the base end of the mixing pipe 83. When gas is discharged from the gas nozzle 84, primary air is sucked from the base end of the mixing pipe 83, and the gas and primary gas are mixed in the mixing pipe 83. A mixed gas is generated by mixing with air. The burner body 1 is formed in an annular shape, and further, as will be described later, secondary air for combustion is supplied even through a space (upper and lower openings 42 described later) on the inner peripheral side of the burner body 1. It has become. The burner body 1 is provided with an annular mixing chamber 10, which is in communication with a mixing tube 83. Specifically, the mixing chamber 10 includes an inner cylinder portion 12 that forms an upper and lower opening 42 (42b) therein, and an outer cylinder portion 13 that is arranged in a radially outward direction of the inner cylinder portion 12 with a predetermined interval therebetween. It is an annular space part opened upward surrounded by the lower surface part 14 which connects the lower ends of the inner cylinder part 12 and the outer cylinder part 13. An inclined surface 15 is formed on the lower surface portion 14 of the mixing chamber 10 so as to be gradually positioned upward from the end portion on the side where the mixing tube 83 is connected to the end portion on the opposite side. That is, the upper and lower openings 42 of the burner body 1 are formed so as to open not only downward but also to the side in the lower part. An annular burner base 11 is provided on the upper surface of the outer cylinder portion 13 of the burner body 1, and an annular burner cap 2 is mounted on the burner base 11. In the case of this example, the burner cap 2 is an aluminum die-cast molded product such as ADC 12 like the burner body 1 and has an outer diameter of about 60 mm. The outer diameter of the burner base 11 on which the burner cap 2 is mounted. Is also formed substantially the same as the outer diameter of the burner cap 2. The outer diameters of the burner base 11 and the burner cap 2 of the standard burner 4b are about φ60 mm as in the case of the large burner 4a, but the small burner 4c has a smaller diameter.

  As shown in FIGS. 3, 4, and 5, the burner cap 2 is an annular block body having an upper and lower opening 42 (42 a) that is opened up and down at the center, and an outer peripheral portion of the lower surface of the burner cap 2. Is placed on the burner base 11, whereby the mixing chamber 10 becomes a generally sealed space. That is, inside the burner base 11 of the burner body 1, the cylindrical inner cylinder portion 12 and the outer cylinder portion 13 are double cylinders, while the burner cap 2 has an annular shape. A cap cylinder portion 21 is provided downward from the inner edge, and when the outer peripheral portion of the burner cap 2 is placed on the burner base 11, as shown in FIG. The cap cylinder portion 21 of the burner cap 2 is substantially fitted, whereby the space between the inner cylinder portion 12 of the burner body 1 and the outer burner base 11 is closed by the burner cap 2 so that the mixing chamber 10 Become.

  A portion of the lower surface of the burner cap 2 that is placed on the outer periphery of the burner base 11 has a plurality of main flame opening grooves 22a radially formed in the circumferential direction, and the burner cap 2 is attached to the burner base of the burner body 1. 11, the atmosphere outside the contact portion of the burner base 11 and the burner cap 2 communicates with the inner mixing chamber 10 through the main flame opening groove 22a, and the mixed gas in the mixing chamber 10 is mainly used. It flows to the outside through the flame opening groove 22a, and the opening outside the main flame opening groove 22a is the main flame opening 22 where the mixed gas burns. In this example, a twin flame port TE is formed as a set of two adjacent main flame ports 22. As shown in FIG. 11, as shown in FIG. 11, in each twin nozzle TE, the outer peripheral surface between adjacent main flame ports 22 is recessed to the inner peripheral side from the outer peripheral surface of the other part to form a communication recess 22 b. It is. In other words, the twin flame port TE is formed by forming the communication recess 22b that is recessed to the inner circumferential side from the outer circumferential surface of the other part on the outer circumferential surface between the main flame ports 22 adjacent to every other circumferential direction. It is. In this way, when the twin flame opening TE is used, when burning with a large fire, each main flame opening 22 burns so that a flame is formed independently. The flame formed in 22 is connected through the communication recess 22b and burns, so that even if it becomes a small fire, the fire is not extinguished and the fire performance is improved. In this example, a turndown ratio of 13.6 is achieved. Yes.

  Further, as shown in FIG. 10, the upper surface of the burner base 11 is provided with a concave step portion 11a over the entire circumference, and by placing the burner cap 2 on the burner base 11, all the concave step portion 11a is provided. A flame holding port 29 is formed so as to go around. In this example, a recess 23 that opens downward is formed between the main flame opening grooves 22a of the burner cap 2, and the inside of the recess 23 becomes a reservoir space in which the mixed gas is accumulated and depressurized. An inflow portion 23 a made up of one or a plurality of grooves and openings for allowing the mixed gas to flow from the mixing chamber 10 into the concave portion 23 is provided in the wall portion on the inner side (center side of the burner cap 2). Is supplied from the mixing chamber 10 through the inflow portion 23a and the concave portion 23 with a mixed gas having a reduced flow rate and a reduced flow velocity. When a mixed gas is supplied from the mixing chamber 10 and ignited, a main flame with a large flame is formed at the main flame opening 22 and a small flame holding flame is formed at the flame holding opening 29 over the entire circumference. It has become.

  The upper surface 2a of the burner cap 2 is provided with concave grooves 28 for supplying secondary air radially at positions between the adjacent main flame ports 22 so as to be supplied from the inner cylinder portion 12 of the burner body 1. The secondary air for combustion is supplied to both sides of the main flame port 22 through the concave groove 28. As a result, the amount of secondary air for combustion supplied from the outer periphery of the burner body 1 on the top plate 81 is sufficiently reduced by supplying the secondary air from the inner peripheral side through at least the concave groove 28. The secondary air is supplied for stable combustion. In addition, a burner cover 3 to be described later is installed on the upper surface 2a of the burner cap 2 to prevent the soup from adhering to the upper surface 2a of the burner cap 2.

  The burner cover 3 has a disk shape arranged above the upper surface 2a of the burner cap 2 with a predetermined interval as shown in FIG. 9 (see FIGS. 1 and 2). Combustion secondary air is supplied from below from the upper and lower openings 42 (42a, 42b) of the burner body 1 and the burner cap 2, and the secondary air flowing upward hits the burner cover 3 and is bent. It flows to the outer periphery through a gap between the lower surface 3b and the upper surface 2a of the burner cap 2, and is supplied as secondary air for combustion to the flame that burns at the flame port (main flame port 22, flame holding port 29). When the secondary air passes between the burner cover 3 and the upper surface 2a of the burner cap 2, air is introduced along each concave groove 28 of the upper surface 2a of the burner cap 2, and the air passing through the concave groove 28 is The secondary air for combustion is effectively supplied to both sides of the flame outlet. As a result, stable combustion can be performed, and the secondary air passes through the groove 28 and the gap between the lower surface 3b of the burner cover 3 and the upper surface 2a of the burner cap 2 as described above. 2 is cooled, and the problem of melting even with the burner cap 2 made of aluminum is eliminated.

In the present invention, a column portion 23b is provided at the central portion of the concave portion 23 in the left-right direction (the circumferential direction of the burner cap 2). The flame holding between the main flame ports 22 is formed by burning the mixed gas flowing into the recess 23 and flowing out from the flame holding port 29. At this time, there is no column portion 23b in the recess 23. case, flame stabilization F ₂ between Omoen port 22 in the conventional example so as shown in FIG. 15 flows a central portion of the mixed gas, many of the recess 23 becomes large lateral center part. In this case, the flow of secondary air is deteriorated by the large flame holding F _{2 at} the center, the combustion of the main flame F ₁ is deteriorated, and the portion of the flame holding F ₂ in contact with the main flame F ₁ is reduced and the flame holding F is reduced. The function as ₂ will deteriorate. Therefore, as in the present invention, the column portion 23b is provided in the central portion of the concave portion 23 in the left-right direction. When the burner cap 2 is placed on the burner base 11, the column portion 23 b is positioned so that the lower surface of the column portion 23 b abuts or approaches the upper surface inside the step 17 of the burner base 11 as shown in FIG. 12. Thus, the mixed gas flowing through the central portion of the recess 23 is eliminated, and the amount of combustion at the central portion of the flame-holding port 29 is reduced. As a result, as shown in FIG. 13, the flame holding F ₂ has a smaller central portion and a larger portion in contact with the main flame F ₁ at both ends, thereby preventing deterioration of the combustion of the main flame F ₁ and as flame holding. The flame holding function can be maintained with a small amount of mixed gas.

  In the case of this example, the five virtues 88 are provided with six claw portions 88b at equal intervals as shown in FIG. 8, and five of the six locations are widened between the adjacent main flame ports 22, Only the flame holding port 29 forms a flame holding port between the main flame ports 22 adjacent to each other with a wide space therebetween. Even in the remaining one place, the interval between the adjacent main flame ports 22 is widened, and an ignition flame port 24 is formed between the adjacent main flame ports 22. The ignition flame port 24 forms an ignition flame so that it can ignite the mixed gas emitted from the flame holding port 29 and the main flame port 22.

  As shown in FIG. 9, an ignition device 25 for generating an ignition spark and igniting a mixed gas exiting from the ignition flame port 24 is attached to a portion corresponding to the ignition flame port 24. The ignition device 25 is mainly composed of an ignition plug 25a and an ignition spark target 25c. The spark plug 25a is attached to the burner body 1, and the electrode 25b of the spark plug 25a protrudes upward. Above the portion of the burner cap 2 where the ignition flame port 24 is provided, a flange portion 26 is provided so as to protrude outwardly so as to prevent the broth from entering the ignition flame port 24. An ignition spark target 25c is provided on the lower surface of the electrode, and the electrode 25b of the ignition plug 25a and the ignition spark target 25c face each other with a predetermined gap therebetween. When the mixed gas is discharged from the ignition flame port 24 and an ignition spark is generated by the ignition device 25, the mixed gas discharged from the ignition flame port 24 is ignited to form an ignition flame. Further, a staying space 27 is provided between the ignition flame port 24 and the mixing chamber 10. The staying space 27 and the mixing chamber 10 are communicated with each other via a communication port 27 a and supplied from the mixing chamber 10. The mixed gas is allowed to flow from the communication port 27 a into the staying space 27, temporarily staying in the staying space 27, and discharged from the ignition flame port 24.

  Among the six claw portions 88b of the virtues 88, the portion corresponding to the five claw portions 88b has a larger interval between the adjacent main flame openings 22 than the standard interval of the other portions. In a portion where the interval 22 is widened, a flame holding port 29 is provided between them so that only the flame holding is formed. As a result, the flame formed in the main flame opening 22 does not pierce the claw portion 88b, and combustion does not deteriorate in this portion, and heat efficiency is not deteriorated due to wasteful heat consumption. In this example, the following structure is adopted for a pair of adjacent main flame ports 22 straddling the claw portion 88b. That is, as shown in FIG. 11, a chamfer c is formed at the corner between the flame holding port 29 and the main flame port 22 between the adjacent main flame ports 22. Since the chamfering c is formed in this manner, the flame formed in the main flame port 22 is formed so as to protrude from the flame holding port 29, and the flame formed in the adjacent main flame port 22 approaches, so that the fire easily moves. Become.

Further, in this example, in the flame holding port 29 at the portion corresponding to the claw portion 88b, the terrace portion so that the upper surface of the burner base 11 protrudes outward from the outer surface of the burner cap 2 placed thereon. T is formed. In the state where the burner cap 2 is placed on the burner base 11, the outer diameters of the burner base 11 and the burner cap 2 are formed to be substantially the same as described above. As shown in (a), the outer surfaces of the burner base 11 and the burner cap 2 are substantially flush with each other, and a lot of secondary air is supplied to the main flame port 22 and the flame holding port 29 from below the outer surface. Thus, in the portion where the terrace portion T is formed on the burner base 11, the secondary air from below is blocked by the terrace portion T as shown in FIG. The combustion amount at the flame holding port 29 can be reduced and the main flame F ₁ and the flame holding F ₂ can be stabilized. Thereby, it becomes possible to further suppress the claw portion 88b from being beaten.

  And this invention has the characteristics in the attachment structure to the burner cap 2 of the burner cover 3, and demonstrates below.

  As shown in FIGS. 3 and 4, the upper surface 2 a of the burner cap 2 is provided with a support locking portion 5 for supporting and locking the burner cover 3, and on the lower surface 3 b of the burner cover 3. 1 and FIG. 2, a supported locking portion 6 is provided for supporting the burner cover 3 by being locked to the support locking portion 5 of the burner cap 2, thereby providing a conventional example. Thus, there is no need to form a through hole 4 ′ (see the conventional example in FIG. 16) in the burner cover 3.

  A plurality of support locking portions 5 of the burner cap 2 and supported lock portions 6 of the burner cover 3 are provided in the circumferential direction, and in this example, three are provided approximately every 120 ° in the circumferential direction.

  The burner cover 2 is engaged with a part of the support latching part 5 of the burner cap 2 and the supported latching part 6 of the burner cover 3 from the side to prevent it from coming off in the vertical direction and in the engaged state. 3 is provided with a side engaging part 5a and a side engaged part 6a that can be rotated around the engaged part, and the remaining supporting and locking parts 5 and 6 are The upper and lower engaging portions 5b and the upper and lower engaged portions 6b that are engaged in the vertical direction to prevent the side portions from coming off are provided.

  In the present embodiment, for two of the three support locking portions 5 of the burner cap 2, an upright piece 52 protruding upward from the upper surface 2 a of the burner cap 2 and an upper end portion of the upright piece 52. A side engagement portion 5a having a substantially inverted L-shape in side view and formed of a lateral piece 53 provided continuously from the outside toward the outside is formed, and the support locking portion 5 in which the side engagement portion 5a is formed. The two supported locking portions 6 corresponding to the above are supported by a hanging piece 62 that hangs downward from the lower surface 3 b of the burner cover 3, and a lateral line that extends inward from the lower end portion of the hanging piece 62. A side engaged portion 6 a having a substantially L shape in side view and formed with the piece 60 is formed.

  Then, the remaining one support locking portion 5 of the burner cap 2 is connected in a substantially horizontal direction from the sandwiched piece 51 protruding upward from the upper surface 2 a of the burner cap 2 and the upper end portion of the sandwiched piece 51. The upper surface 2a becomes the mounting surface of the burner cover 3, and the upper and lower engaging portions 5b including the mounting piece 54 in which the positioning piece 61 described later is inserted to form the positioning notch 54a are formed. The remaining one, that is, the supported latching portion 6 of the burner cover 3 corresponding to the support latching portion 5 of the burner cap 2 in which the upper and lower engagement portions 5b are formed, hangs downward from the lower surface 3b of the burner cover 3. The upper and lower engaged portions are formed of a positioning piece 61 and a retaining piece 63 that is continuously provided outward from the lower end portion of the positioning piece 61.

  For attaching the burner cover 3 to the burner cap 2, first, the side engaged portions 6a formed on the two supported locking portions 6 of the burner cover 3 are set to the two supporting members of the burner cap 2 from the side. Although it engages in the side engaging part 5a formed in the stop part 5, when inserting, the remaining one supported latching part 6 of the burner cover 3 supports the remaining one support of the burner cap 2. It is located above the locking part 5. That is, in the engagement of the side engaged portion 6a and the side engaging portion 5a, the burner cover 3 is engaged with the burner cap 2 in an inclined state. The angle between the burner cover 3 and the burner cap 2 in the engaged state can be any angle from the horizontal state to a certain inclination angle with respect to the burner cap 2 in which the upper surface 2a is installed horizontally. It is like that. Here, the engagement between the side engaging portion 5a of the burner cap 2 and the side engaged portion 6a of the burner cover 3 will be further described.

  Then, in a state where the horizontal pieces 60 of the two side engaged portions 6 a of the burner cover 3 are positioned below the horizontal pieces 53 of the two side engaged portions 5 a of the burner cover 3, The cover 3 is moved to the side, the standing piece 52 of the burner cap 2 is inserted into the notch 60a formed in the horizontal piece 60 of the burner cover 3, and the side engaging portion 5a and the side engaged portion are inserted. Engagement with 6a is completed. In this state, the side (horizontal) movement of the burner cover 3 moves only in the direction opposite to the direction in which the standing piece 52 of the burner cap 2 is inserted into the notch 60a of the horizontal piece 60 of the burner cover 3. In this state, the lower surface 3b of the burner cover 3 is placed on the upper surface of the horizontal piece 53 of the burner cap 2, and the vertical movement of the burner cover 3 is prevented. Since the protruding portion 60b (see FIG. 1 and the like) of the horizontal piece 60 of the burner cover 3 is engaged with the lower side of the horizontal piece 53 of the burner cap 2 and its upward movement is restricted, it prevents the vertical removal. It will be.

  In this engaged state, the horizontal piece 60 of the burner cover 3 is between the upper surface 2a of the burner cap 2 and the horizontal piece 53, and the thickness of the horizontal piece 60 is as thin as 1 mm or less as described above. Since the upper and lower gaps between the upper surface 2a of the burner cap 2 and the horizontal piece 53 are about a few millimeters slightly shorter than the vertical length of the standing piece 52, the horizontal piece 60 of the burner cover 3 is The gap between the upper surface 2a and the horizontal piece 53 can be inclined up and down.

  Next, the end of the remaining one of the supported latching portions 6 of the burner cover 3 (that is, the supported latching portion 6 in which the upper and lower engaged portions 6b are formed) is lowered downward with the engaged portion as a center. And the upper and lower engaged portions 6 b of the burner cover 3 are placed on the upper and lower engaging portions 5 a of the remaining one of the support locking portions 5 of the burner cap 2. When the upper and lower engaged portions 6b are placed on the upper and lower engaged portions 5b, the positioning pieces 61 of the upper and lower engaged portions 6b are inserted into the notches 54a of the placing pieces 54 of the upper and lower engaged portions 5b and are moved sideways. Movement is restricted. As a result, the side engaging portion 5 and the side engaged portion 6 are prevented from slipping in the direction opposite to the retaining direction, and are prevented from coming off in all lateral directions.

  At this time, the positioning piece 61 of the upper and lower engaged portion 6b of the burner cover 3 and the sandwiched piece 51 of the upper and lower engaging portion 5b of the burner cap 2 are in contact with or close to each other. And the clamped piece 51 are clamped by the clip pin 7 to prevent the upper and lower parts from coming off. As shown in FIG. 6, the clip pin 7 is made of an iron-based or aluminum-based metal, is formed by folding an elastic wire material in a generally U shape, and between the folded side pieces 71. The positioning piece 61 and the sandwiched piece 51 are attached from the side so as to be press-fitted, and the positioning piece 61 and the sandwiched piece 51 are sandwiched by the side pieces 71 on both sides. In the middle of the side pieces 71 on both sides, a retaining portion 72 is formed so as to protrude toward the side pieces 71 that partially face each other, and the positioning piece 61 and the sandwiched piece 51 are sandwiched. The clip pin 7 is prevented from coming off in the inserted direction (see FIG. 7). Further, in a state in which both the sandwiched piece positioning piece 61 and the sandwiched piece 51 are sandwiched by the clip pin 7, the clipped piece 7 may fall off downward by the retaining piece 63 protruding sideways from the lower end of the positioning piece 61 of the burner cover 3. Is prevented.

  In the above-described stove burner 4 of the present invention, the support latching portion 5 is provided on the upper surface 2 a of the burner cap 2, and the supported latching portion 6 is provided on the lower surface 3 b of the burner cover 3. 3 does not need to be formed with a through hole 4 ′ (see the conventional example in FIG. 16) for inserting a hook or a screw, and the through hole 4 ′ is formed in the burner cover 3 as in the conventional example. As in the case of fixing the burner cap 2 by inserting a bowl or a screw into the hole 4 ′, the broth spilled into the burner cover 3 enters the burner cap 2 from the through hole 4 ′, or the burner cover 3 The portion of the through-hole 4 'and the bowl or screw are corroded by the spilled water, or the bowl or cover is visible when the burner cover 3 is viewed from above, and the design becomes poor. Screw Because it is necessary parts is increased becomes high cost, but does not like.

  Further, as in the present embodiment, the burner cover 3 is engaged with a part of the supporting locking portions 5 and the supported locking portions 6 from the side to prevent the vertical locking and the vertical locking. Is provided with a side engaging portion 5a and a side engaged portion 6a that can be rotated around the engaged portion, and the remaining support locking portion 5 and the supported locking portion 6 are By attaching the vertical engagement portion 5b and the vertical engagement portion 6b that are engaged in the direction and prevent the lateral displacement, the burner cover 3 can be easily attached to and detached from the burner cap 2. At the same time, the burner cover 3 does not come off the burner cap 2 by itself.

The burner cover of the stove burner of this invention is shown, (a) is a bottom view, (b) is sectional drawing. The burner cover same as the above is shown, (a) is a perspective view seen from diagonally above, and (b) is a perspective view seen from diagonally below. It is the perspective view seen from diagonally upward of the burner cap. It is the perspective view seen from diagonally upward of the burner cap (viewed from an angle different from FIG. 3). It is a bottom view of a burner cap. It is a front view of a clip pin. It is a perspective view which shows the state which clamped the to-be-clamped part of the burner cap with the both-sides piece of a clip pin. It is a top view of a gas cooker. It is a sectional side view of the principal part of a gas cooker. It is a disassembled perspective view of a stove burner. It is a front enlarged view of the state where the burner cap is mounted on the burner body. The state which mounted the burner cap in the burner main body is shown, (a) is sectional drawing of a main flame mouth part, (b) is sectional drawing of a flame holding mouth part. It is explanatory drawing explaining the combustion state of a main flame and a flame holding. The engagement state of a burner cap and a burner cover is shown, (a) is explanatory drawing of the engagement state of a side engaging part and a side engaged part, (b) is a vertical engaging part and a vertical engaged part. It is explanatory drawing of the engagement state of a joint part. It is explanatory drawing explaining the combustion state of the conventional main flame and flame holding. It is explanatory drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Burner body 2 Burner cap 3 Burner cover 4 Stove burner 5 Support latching part 6 Supported latching part 7 Clip pin

Claims (3)

  An annular burner cap is mounted on the burner base of the annular burner body, and a flame opening is provided on the outer periphery of the burner cap and / or the outer periphery of the burner base, and at a predetermined interval on the upper surface of the burner cap. The burner cover that covers the upper surface of the burner cap is arranged, and the air introduced into the upper surface side of the burner cap through the upper and lower openings opened up and down in the center of the burner main body and the burner cap, and the upper surface of the burner cap and the burner cover In the stove burner that is guided to the outer peripheral part of the burner cap between and the burner cap, a support locking part for supporting and locking the burner cover is provided on the upper surface of the burner cap, and the lower surface of the burner cover A supported locking portion for supporting the burner cover by being locked to the support locking portion of the burner cap is provided. Nrobana.   A plurality of support locking portions of the burner cap and supported support portions of the burner cover are provided in the circumferential direction, and are engaged with some of the support locking portions and the supported locking portions from the side. A side engagement portion and a side engagement portion are provided so that the burner cover can rotate around the engaged portion while being prevented from coming off in the vertical direction, and the remaining support. 2. The upper and lower engaged portions and the upper and lower engaged portions that are engaged in the vertical direction and prevent the side portions from coming off are provided on the locking portion and the supported locking portion, respectively. The described stove burner.   Three supporting latch portions of the burner cap and supported latch portions of the burner cover are provided in a circumferential direction at approximately 120 ° intervals, and the upper surface of the burner cap is provided on two of the support latch portions. A side engagement portion comprising a standing piece projecting upward from the horizontal piece and a lateral piece arranged outward from the upper end of the standing piece, and a support member provided with the side engagement portion A laterally-engaged structure comprising a suspended piece that hangs downward from the lower surface of the burner cover and a lateral piece that extends inward from the lower end of the suspended piece to the supported locking portion corresponding to the stopper. A sandwiching portion is provided, and the remaining support locking portion is connected to the sandwiched piece projecting upward from the upper surface of the burner cap and the upper end portion of the sandwiched piece in a substantially horizontal direction, and the upper surface is the mounting surface of the burner cover And provided with a vertical engagement portion consisting of a mounting piece in which a positioning piece is inserted to form a notch for positioning, A positioning piece that hangs downward from the lower surface of the burner cover and a lower end portion of the positioning piece are connected to the supported locking portion corresponding to the supporting locking portion provided with the vertical engaging portion. After the upper and lower engaged parts comprising the retaining pieces are provided, and the side engaged parts of the supported and locked parts of the burner cover are engaged with the side engaged parts of the supported and locked parts of the burner cap. With the upper and lower engaging parts of the remaining supporting and locking part of the burner cover engaged with the upper and lower engaged parts of the remaining supported and locking part of the burner cap, the clamped piece and positioning piece are The stove burner according to claim 2, characterized by being sandwiched.

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