JP6392575B2 - Stove burner - Google Patents

Stove burner Download PDF

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JP6392575B2
JP6392575B2 JP2014159259A JP2014159259A JP6392575B2 JP 6392575 B2 JP6392575 B2 JP 6392575B2 JP 2014159259 A JP2014159259 A JP 2014159259A JP 2014159259 A JP2014159259 A JP 2014159259A JP 6392575 B2 JP6392575 B2 JP 6392575B2
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burner
cylinder
cap
notch
burner body
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JP2016038106A (en
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隼 柴田
隼 柴田
竹本　安伸
安伸 竹本
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Rinnai Corp
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Rinnai Corp
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Description

本発明は、内筒と外筒とを有する中空環状の板金製のバーナボディと、バーナボディ上に載置される環状のバーナキャップとを備えるコンロ用バーナに関する。   The present invention relates to a burner for a stove that includes a hollow annular sheet metal burner body having an inner cylinder and an outer cylinder, and an annular burner cap placed on the burner body.

従来、この種のコンロ用バーナでは、バーナキャップの内周縁部に、バーナボディの内筒に内挿される筒部が垂設され、バーナキャップの下面外周部に、バーナボディの外筒の上端部に着座する筒壁部が垂設されて、筒壁部に、周方向の間隔を存して複数の炎孔が形成されている。   Conventionally, in this type of burner for a stove, a cylindrical portion inserted into the inner cylinder of the burner body is vertically provided on the inner peripheral edge of the burner cap, and the upper end of the outer cylinder of the burner body is provided on the outer peripheral portion of the lower surface of the burner cap. A cylindrical wall portion that sits down is suspended, and a plurality of flame holes are formed in the cylindrical wall portion at intervals in the circumferential direction.

また、従来、バーナボディを鋳物製とするコンロ用バーナにおいて、バーナキャップの筒部に、周方向１箇所に位置させて、筒部の下端から上方にのびる切欠きを形成すると共に、バーナボディの内筒の内周面に、周方向１箇所に位置させて、切欠きに挿入可能な径方向内方に突出する突起部を形成し、バーナキャップが正規位相で載置されるときは、切欠きに突起部が挿入されて、バーナキャップの筒壁部がバーナボディの外筒の上端部に着座するが、バーナキャップが正規位相からずれた位相で載置されるときは、筒部の下端の切欠きが形成されていない部分が突起部に乗り上げて、筒壁部が外筒の上端部から浮き上がり、誤セット状態であることを気づきやすくしたものが知られている（例えば、特許文献１参照）。   Further, conventionally, in a burner for a stove in which the burner body is made of cast metal, a notch extending upward from the lower end of the cylinder portion is formed in the cylinder portion of the burner cap at one place in the circumferential direction, and the burner body On the inner peripheral surface of the inner cylinder, a protrusion projecting radially inward that can be inserted into the notch is formed at one place in the circumferential direction, and when the burner cap is placed in the normal phase, When the protrusion is inserted into the notch and the cylindrical wall of the burner cap is seated on the upper end of the outer cylinder of the burner body, the lower end of the cylindrical part when the burner cap is placed with a phase shifted from the normal phase It is known that the portion where the notch is not formed runs on the protrusion, and the cylindrical wall portion is lifted from the upper end portion of the outer cylinder, so that it is easy to notice that it is in an erroneous setting state (for example, Patent Document 1). reference).

ところで、コストダウンを図るには、バーナボディを鋳物製ではなく板金製とすることが望まれる。然し、板金製のバーナボディでは、内筒の内周面に突起部を形成できず、上記の構造を採用できない。   By the way, in order to reduce the cost, it is desired that the burner body is made of sheet metal instead of casting. However, in the burner body made of sheet metal, the protrusion cannot be formed on the inner peripheral surface of the inner cylinder, and the above structure cannot be adopted.

そこで、従来、バーナボディを板金製とするコンロ用バーナとして、バーナボディの外筒の周方向１箇所に、径方向外方に窪む窪み部を外筒の上端部に達するように形成すると共に、バーナキャップの下面の周方向１箇所に、バーナキャップが正規位相で載置されるときに窪み部に嵌合するピン部を垂設し、バーナキャップが正規位相からずれた位相で載置されるときは、ピン部の下端が外筒の上端部に乗り上げて、筒壁部が外筒の上端部から浮き上がるようにしたものが知られている（例えば、特許文献２参照）。   Therefore, conventionally, as a burner for a stove in which the burner body is made of sheet metal, a dent that is recessed radially outward is formed at one place in the circumferential direction of the outer cylinder of the burner body so as to reach the upper end of the outer cylinder. A pin portion that fits into the recess when the burner cap is placed in the normal phase is suspended at one place on the lower surface of the burner cap, and the burner cap is placed at a phase shifted from the normal phase. In this case, it is known that the lower end of the pin portion rides on the upper end portion of the outer cylinder so that the cylindrical wall portion is lifted from the upper end portion of the outer cylinder (see, for example, Patent Document 2).

然し、このものでは、加工上の理由から窪み部の上下方向長さが制限されるため、ピン部の上下方向長さも制限されることになる。そのため、バーナキャップが正規位相からずれた位相で載置されたときに、筒壁部が外筒の上端部から然程浮き上がらず、使用者が誤セット状態であることに気づきにくくなってしまう。   However, in this case, the vertical length of the recess is limited for processing reasons, so the vertical length of the pin portion is also limited. For this reason, when the burner cap is placed at a phase shifted from the normal phase, the cylinder wall portion does not rise so much from the upper end portion of the outer cylinder, and it becomes difficult for the user to notice that the user is in an erroneous setting state.

特開２００３−２１４６０６号公報JP 2003-214606 A 特開２００９−１２１７６７号公報JP 2009-121767 A

本発明は、以上の点に鑑み、バーナボディを板金製としたコンロ用バーナであって、バーナキャップが誤セット状態であることを気づきやすくしたものを提供することをその課題としている。   In view of the above, an object of the present invention is to provide a burner for a stove in which a burner body is made of sheet metal, in which it is easy to notice that the burner cap is in an erroneously set state.

上記課題を解決するために、本発明は、内筒と外筒とを有する中空環状の板金製のバーナボディと、バーナボディ上に載置される環状のバーナキャップとを備え、バーナキャップの内周縁部に、バーナボディの内筒に内挿される筒部が垂設され、バーナキャップの下面外周部に、バーナボディの外筒の上端部に着座する筒壁部が垂設されて、筒壁部に、周方向の間隔を存して複数の炎孔が形成されたコンロ用バーナにおいて、バーナキャップの筒部に、周方向１箇所に位置させて、筒部の下端から上方にのびる切欠きが形成され、バーナボディの内筒内に、切欠きに挿入可能でバーナボディとは別体の位置決め部材が配置され、バーナキャップが正規位相で載置されるときは、切欠きに位置決め部材が挿入されて、バーナキャップの筒壁部がバーナボディの外筒の上端部に着座するが、バーナキャップが正規位相からずれた位相で載置されるときは、筒部の下端の切欠きが形成されていない部分が位置決め部材に乗り上げて、筒壁部が外筒の上端部から浮き上がるようにし、更に、バーナボディの外筒の周方向１箇所に、径方向外方に窪む窪み部が外筒の上端部に達するように形成されると共に、バーナキャップの下面の周方向１箇所に、バーナキャップが正規位相で載置されるときに窪み部に嵌合するピン部が垂設され、筒部の切欠きに位置決め部材が挿入された状態で、切欠きに対する位置決め部材の挿入クリアランス分だけ筒部が周方向に動いたときの炎孔の周方向変位よりも、窪み部へのピン部の嵌合で、炎孔の周方向変位が小さく抑えられることを特徴とする。 In order to solve the above-described problems, the present invention includes a hollow annular sheet metal burner body having an inner cylinder and an outer cylinder, and an annular burner cap placed on the burner body. A cylinder part inserted into the inner cylinder of the burner body is suspended from the peripheral part, and a cylinder wall part seated on the upper end part of the outer cylinder of the burner body is suspended from the outer peripheral part of the lower surface of the burner cap. In a stove burner in which a plurality of flame holes are formed at intervals in the circumferential direction, a notch extending upward from the lower end of the cylindrical portion is positioned at one circumferential position on the cylindrical portion of the burner cap When a positioning member that can be inserted into the notch and is separate from the burner body is placed in the inner cylinder of the burner body, and the burner cap is placed in the normal phase, the positioning member is located in the notch. Inserted, the cylindrical wall of the burner cap -When sitting on the upper end of the outer cylinder of the inner body, but the burner cap is placed at a phase deviating from the normal phase, the part of the lower end of the cylinder that is not formed with the notch rides on the positioning member, The wall portion is lifted from the upper end portion of the outer cylinder , and further, a recess portion that is recessed radially outward is formed at one circumferential direction of the outer cylinder of the burner body so as to reach the upper end portion of the outer cylinder. The pin portion that fits into the recess when the burner cap is placed in the normal phase is vertically provided at one place on the lower surface of the burner cap, and the positioning member is inserted into the notch of the cylindrical portion Thus, the circumferential displacement of the flame hole is smaller due to the fitting of the pin portion to the recess than the circumferential displacement of the flame hole when the cylinder portion moves in the circumferential direction by the insertion clearance of the positioning member with respect to the notch. It is characterized by being suppressed .

本発明によれば、バーナボディの内筒内に配置した位置決め部材が、上記従来例の鋳物製バーナボディの内筒内周面に形成する突起部と同様の機能を発揮することになり、バーナボディを板金製とするにも拘らず、バーナキャップが誤セット状態であるときに、バーナキャップの筒部を利用して、バーナキャップの筒壁部をバーナボディの外筒の上端部から浮き上がらせることができる。そして、バーナキャップの筒部は、加工上の制約を受けることなく十分に長く形成することができるため、誤セット状態での筒壁部の外筒上端部からの浮き上がり量を大きくして、誤セット状態であることを気づきやすくすることができる。   According to the present invention, the positioning member arranged in the inner cylinder of the burner body exhibits the same function as the protrusion formed on the inner cylinder inner peripheral surface of the casting burner body of the conventional example. Despite the body being made of sheet metal, when the burner cap is in the wrong set state, the cylinder part of the burner cap is lifted from the upper end of the outer cylinder of the burner body using the cylinder part of the burner cap. be able to. Since the cylindrical portion of the burner cap can be formed sufficiently long without being restricted by processing, the amount of lifting from the upper end portion of the outer cylinder of the cylindrical wall portion in the erroneous setting state is increased, thereby causing an error. It can make it easy to notice that it is in the set state.

また、コンロ用バーナが、バーナボディの内筒に挿通される支持パイプと、支持パイプの上端部に支持される、バーナキャップよりも上方に突出する感熱ヘッドとを有する鍋底温度センサを備えるものである場合は、支持パイプを固定する固定具に上記位置決め部材を一体に形成することが望ましい。これによれば、位置決め部材を設けることで、部品点数が増加してコストアップすることを回避できる。   Further, the stove burner is provided with a pan bottom temperature sensor having a support pipe inserted through the inner cylinder of the burner body and a thermal head supported by the upper end portion of the support pipe and projecting upward from the burner cap. In some cases, it is desirable to form the positioning member integrally with a fixture for fixing the support pipe. According to this, by providing the positioning member, it is possible to avoid an increase in the number of parts and an increase in cost.

ところで、バーナキャップの筒部の切欠きに位置決め部材が挿入された状態で、切欠きに対する位置決め部材の挿入クリアランス分だけ筒部が周方向に動き得る。そして、筒部はバーナキャップの内周側に設けられているため、筒部が上記挿入クリアランス分だけ周方向に動くと、バーナキャップの外周側の周壁部に形成した炎孔は周方向に上記挿入クリアランスより大きく変位してしまう。   By the way, in a state where the positioning member is inserted into the notch of the cylindrical part of the burner cap, the cylindrical part can move in the circumferential direction by the insertion clearance of the positioning member with respect to the notch. Since the cylindrical portion is provided on the inner peripheral side of the burner cap, when the cylindrical portion moves in the circumferential direction by the insertion clearance, the flame hole formed in the peripheral wall portion on the outer peripheral side of the burner cap is in the circumferential direction. It will be displaced more than the insertion clearance.

これに対し、本発明によれば、窪み部へのピン部の嵌合で、バーナキャップが外周側でバーナボディに対し回り止めされることになり、バーナキャップの周壁部に形成した炎孔の周方向変位を小さく抑えることができる。 On the other hand, according to the present invention , the burner cap is prevented from rotating with respect to the burner body on the outer peripheral side by fitting the pin portion to the hollow portion, and the flame hole formed in the peripheral wall portion of the burner cap The circumferential displacement can be kept small.

本発明の実施形態のコンロ用バーナの斜視図。The perspective view of the burner for stove of embodiment of this invention. 図１のＩＩ−ＩＩ線で切断した切断側面図。FIG. 2 is a cut side view taken along line II-II in FIG. 1. 図２のＩＩＩ−ＩＩＩ線で切断した断面図。Sectional drawing cut | disconnected by the III-III line | wire of FIG. 実施形態のコンロ用バーナの分解状態の斜視図。The perspective view of the decomposition | disassembly state of the stove burner of embodiment.

図１乃至図３を参照して、本発明の実施形態のコンロ用バーナは、バーナボディ１とバーナキャップ２とを備えている。バーナボディ１は、これに一体の混合管３の先端部から立ち上がる内筒１１と外筒１２とを有する中空環状の板金製であり、コンロ本体（図示せず）内に固定の台枠４に載置固定されている。外筒１２の上端には、径方向外方に屈曲するフランジ部１３と、フランジ部１３の外周から下方にのびるスカート部１４とが形成されている。   1 to 3, the stove burner according to the embodiment of the present invention includes a burner body 1 and a burner cap 2. The burner body 1 is made of a hollow annular sheet metal having an inner cylinder 11 and an outer cylinder 12 rising from a tip portion of a mixing tube 3 integrated with the burner body 1, and is attached to a frame 4 fixed in a stove body (not shown). Placed and fixed. A flange portion 13 that is bent outward in the radial direction and a skirt portion 14 that extends downward from the outer periphery of the flange portion 13 are formed at the upper end of the outer cylinder 12.

バーナキャップ２は、バーナボディ１上に載置されるもので、環状に形成されている。バーナキャップ２の内周縁部には、バーナボディ１の内筒１１に内挿される筒部２１が垂設されている。また、バーナキャップ２の下面外周部には、バーナボディ１の外筒１２の上端部、即ち、フランジ部１３に着座する筒壁部２２が垂設されている。そして、筒壁部２２に、周方向の間隔を存して溝から成る複数の炎孔２３を形成し、混合管３からバーナボディ１内に供給される混合気（燃料ガスと一次空気との混合ガス）がこれら炎孔２３から噴出して燃焼するようにしている。尚、炎孔２３には、一般炎孔２３ａとこれより小さな小炎孔２３ｂとがあり、コンロの天板上に載置する五徳の各五徳爪と同一方位に位置する炎孔は小炎孔２３ｂとして、火炎が五徳爪に触れることを防止している。   The burner cap 2 is placed on the burner body 1 and is formed in an annular shape. A cylindrical portion 21 that is inserted into the inner cylinder 11 of the burner body 1 is suspended from the inner peripheral edge of the burner cap 2. Further, a cylindrical wall portion 22 that sits on the upper end portion of the outer cylinder 12 of the burner body 1, that is, the flange portion 13, is suspended from the outer peripheral portion of the lower surface of the burner cap 2. A plurality of flame holes 23 are formed in the cylindrical wall portion 22 at intervals in the circumferential direction, and an air-fuel mixture (fuel gas and primary air is supplied from the mixing tube 3 into the burner body 1. A mixed gas) is ejected from these flame holes 23 and burned. The flame holes 23 include a general flame hole 23a and a smaller flame hole 23b. The flame holes located in the same orientation as the five virtue claws of the five virtues placed on the top plate of the stove are small flame holes. As 23b, the flame is prevented from touching the five virtue claws.

また、筒壁部２２の周囲１箇所には、点火炎孔２３ｃが形成されると共に、点火炎孔２３ｃの上方位置から径方向外方に張り出す庇部２４が形成されている。そして、庇部２４で覆われる位置に、台枠４上に取付ブラケット５１を介して固定される点火電極５を配置している。また、筒壁部２２には火炎検知用炎孔が形成されており、この炎孔に臨む位置に、台枠４上に取付ブラケット６１を介して固定される熱電対から成る火炎検知素子６を配置している。   In addition, an ignition flame hole 23c is formed at one location around the cylindrical wall portion 22, and a flange portion 24 that protrudes radially outward from a position above the ignition flame hole 23c is formed. And the ignition electrode 5 fixed on the underframe 4 via the mounting bracket 51 is arrange | positioned in the position covered with the collar part 24. FIG. In addition, a flame detection flame hole is formed in the cylindrical wall portion 22, and a flame detection element 6 composed of a thermocouple fixed on the frame 4 via a mounting bracket 61 is provided at a position facing the flame hole. It is arranged.

コンロ用バーナは、更に、五徳に載せた調理容器の底面に当接してその温度を検出する鍋底温度センサ７を備えている。鍋底温度センサ７は、バーナボディ１の内筒１１に挿通される支持パイプ７１と、支持パイプ７１の上端部に支持される、バーナキャップ２よりも上方に突出する感熱ヘッド７２とを有している。感熱ヘッド７２は、上端部にサーミスタ等の感熱素子７２ａを内蔵している。そして、支持パイプ７１に対し感熱ヘッド７２をバネ７３で上方に付勢し、五徳に調理容器を載せたときに、感熱ヘッド７２がバネ７３の付勢力に抗して押し下げられて調理容器の底面に密着するようにしている。   The stove burner further includes a pan bottom temperature sensor 7 that abuts against the bottom surface of the cooking container placed on the virtues and detects its temperature. The pan bottom temperature sensor 7 includes a support pipe 71 that is inserted into the inner cylinder 11 of the burner body 1 and a thermal head 72 that is supported by the upper end portion of the support pipe 71 and projects above the burner cap 2. Yes. The thermal head 72 incorporates a thermal element 72a such as a thermistor at the upper end. When the thermal head 72 is urged upward by the spring 73 with respect to the support pipe 71 and the cooking container is placed on the virtues, the thermal head 72 is pushed down against the urging force of the spring 73 and the bottom surface of the cooking container. It is trying to adhere to.

尚、支持パイプ７１は、台枠４上に設けた固定具７４で固定されている。固定具７４は、台枠４に固定される固定板７４ａと、固定板７４ａとの間に支持パイプ７１を挟み込んで固定する押え板７４ｂとで構成されている。   The support pipe 71 is fixed by a fixture 74 provided on the frame 4. The fixing tool 74 includes a fixing plate 74a that is fixed to the underframe 4 and a pressing plate 74b that sandwiches and fixes the support pipe 71 between the fixing plate 74a.

ところで、バーナキャップ２は、小炎孔２３ｂが五徳爪と同一方位に位置し、点火炎孔２３ｃと火炎検知用炎孔が夫々点火電極５と火炎検知素子６に対向する正規位相でバーナボディ１上に載置する必要がある。そして、バーナキャップ２が正規位相からずれた位相で載置されたときは、誤セット状態であることを使用者が気づきやすくすべきである。   By the way, the burner cap 2 has the burner body 1 in a normal phase in which the small flame hole 23b is positioned in the same direction as the five victories and the ignition flame hole 23c and the flame detection flame hole face the ignition electrode 5 and the flame detection element 6, respectively. Need to be placed on top. When the burner cap 2 is placed with a phase deviating from the normal phase, the user should be able to easily recognize that the burner cap 2 is in an erroneously set state.

そこで、本実施形態では、図４にも示されているように、バーナキャップ２の筒部２１に、周方向１箇所に位置させて、筒部２１の下端から上方にのびる切欠き２５を形成し、更に、バーナボディ１の内筒１１内に、切欠き２５に挿入可能でバーナボディ１とは別体の位置決め部材８を配置している。尚、本実施形態では、鍋底温度センサ７の支持パイプ７１用の固定具７４の上部片側に、バーナボディ１の内筒１１に接近する側方への張出し部を形成し、この張出し部で位置決め部材８を構成している。即ち、固定具７４に位置決め部材８を一体に形成している。   Therefore, in this embodiment, as shown in FIG. 4, a notch 25 extending upward from the lower end of the cylindrical portion 21 is formed in the cylindrical portion 21 of the burner cap 2 at one location in the circumferential direction. Furthermore, a positioning member 8 that is insertable into the notch 25 and separate from the burner body 1 is disposed in the inner cylinder 11 of the burner body 1. In the present embodiment, a laterally projecting portion that approaches the inner cylinder 11 of the burner body 1 is formed on one side of the upper portion of the fixture 74 for the support pipe 71 of the pan bottom temperature sensor 7, and positioning is performed by this projecting portion. The member 8 is configured. That is, the positioning member 8 is formed integrally with the fixture 74.

そして、バーナキャップ２が正規位相で載置されるときは、切欠き２５に位置決め部材８が挿入されて、バーナキャップ２の筒壁部２２がバーナボディ１のフランジ部１３（外筒１２の上端部）に着座するが、バーナキャップ２が正規位相からずれた位相で載置されるときは、筒部２１の下端の切欠き２５が形成されていない部分が位置決め部材８に乗り上げて、筒壁部２２がフランジ部１３から浮き上がるようにしている。   When the burner cap 2 is placed in the normal phase, the positioning member 8 is inserted into the notch 25, and the cylindrical wall portion 22 of the burner cap 2 is connected to the flange portion 13 of the burner body 1 (the upper end of the outer cylinder 12). However, when the burner cap 2 is mounted at a phase shifted from the normal phase, the portion of the cylindrical portion 21 where the notch 25 is not formed rides on the positioning member 8 and the cylindrical wall. The portion 22 is lifted from the flange portion 13.

ここで、バーナキャップ２の筒部２１は、加工上の制約を受けることなく十分に長く形成することができる。そのため、誤セット状態での筒壁部２２のフランジ部１３からの浮き上がり量を大きくして、誤セット状態であることを気づきやすくすることができる。また、バーナボディ１とは別体の位置決め部材８を設けても、固定具７４に位置決め部材８を一体に形成するため、部品点数が増加してコストアップすることはない。   Here, the cylindrical portion 21 of the burner cap 2 can be formed sufficiently long without being restricted by processing. For this reason, it is possible to increase the amount of lifting from the flange portion 13 of the cylindrical wall portion 22 in the erroneously set state so that it is easy to notice that it is in the erroneously set state. Even if the positioning member 8 separate from the burner body 1 is provided, the positioning member 8 is formed integrally with the fixture 74, so that the number of parts is not increased and the cost is not increased.

ところで、バーナキャップ２の筒部２１の切欠き２５に位置決め部材８が挿入された状態でも、切欠き２５に対する位置決め部材８の挿入クリアランス（切欠き２５の幅と位置決め部材８の厚さとの差）分だけ筒部２１が周方向に動き得る。そして、筒部２１はバーナキャップ２の内周側に設けられているため、筒部２１が上記挿入クリアランス分だけ周方向に動くと、バーナキャップ２の外周側の周壁部２２に形成した炎孔２３は周方向に上記挿入クリアランスより大きく変位し、点火炎孔２３ｃや火炎検知用炎孔が点火電極５や火炎検知素子６に正対しなくなってしまう。   By the way, even when the positioning member 8 is inserted into the notch 25 of the cylindrical portion 21 of the burner cap 2, the insertion clearance of the positioning member 8 with respect to the notch 25 (the difference between the width of the notch 25 and the thickness of the positioning member 8). The cylinder part 21 can move in the circumferential direction by the amount. And since the cylinder part 21 is provided in the inner peripheral side of the burner cap 2, if the cylinder part 21 moves to the circumferential direction by the said insertion clearance, the flame hole formed in the peripheral wall part 22 of the outer peripheral side of the burner cap 2 23 is displaced more than the insertion clearance in the circumferential direction, and the ignition flame hole 23c and the flame detection flame hole do not face the ignition electrode 5 and the flame detection element 6.

そこで、本実施形態では、バーナボディ１の外筒１２の周方向１箇所に、径方向外方に窪む窪み部１５をフランジ部１３（外筒１２の上端部）に達するように形成すると共に、バーナキャップ２の下面の周方向１箇所に、バーナキャップ２が正規位相で載置されるときに窪み部１５に嵌合するピン部２６を垂設している。これによれば、窪み部１５へのピン部２６の嵌合で、バーナキャップ２が外周側でバーナボディ１に対し回り止めされることになり、バーナキャップ２の周壁部２２に形成した炎孔２３の周方向変位を小さく抑え、点火炎孔２３ｃや火炎検知用炎孔が点火電極５や火炎検知素子６に正対しなくなってしまうことを防止できる。   Therefore, in the present embodiment, a recess 15 that is recessed radially outward is formed at one place in the circumferential direction of the outer cylinder 12 of the burner body 1 so as to reach the flange 13 (the upper end of the outer cylinder 12). In addition, a pin portion 26 that fits into the recess portion 15 when the burner cap 2 is placed in a normal phase is provided vertically at one place on the lower surface of the burner cap 2 in the circumferential direction. According to this, the burner cap 2 is prevented from rotating with respect to the burner body 1 on the outer peripheral side by the fitting of the pin portion 26 to the hollow portion 15, and the flame hole formed in the peripheral wall portion 22 of the burner cap 2. It is possible to suppress the displacement in the circumferential direction of the electrode 23 from being small and prevent the ignition flame hole 23c and the flame detection flame hole from facing the ignition electrode 5 and the flame detection element 6.

以上、本発明の実施形態について図面を参照して説明したが、本発明はこれに限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々変形して実施することができる。   As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this, Various deformation | transformation can be implemented in the range which does not deviate from the meaning of this invention.

１…バーナボディ、１１…内筒、１２…外筒、１３…フランジ部（外筒の上端部）、１５…窪み部、２…バーナキャップ、２１…筒部、２２…筒壁部、２３…炎孔、２５…切欠き、２６…ピン部、７…鍋底温度センサ、７１…支持パイプ、７２…感熱ヘッド、７４…固定具、８…位置決め部材。   DESCRIPTION OF SYMBOLS 1 ... Burner body, 11 ... Inner cylinder, 12 ... Outer cylinder, 13 ... Flange part (upper end part of an outer cylinder), 15 ... Recessed part, 2 ... Burner cap, 21 ... Cylinder part, 22 ... Cylinder wall part, 23 ... Flame hole, 25 ... notch, 26 ... pin part, 7 ... pan bottom temperature sensor, 71 ... support pipe, 72 ... thermal head, 74 ... fixing tool, 8 ... positioning member.

Claims (2)

内筒と外筒とを有する中空環状の板金製のバーナボディと、バーナボディ上に載置される環状のバーナキャップとを備え、バーナキャップの内周縁部に、バーナボディの内筒に内挿される筒部が垂設され、バーナキャップの下面外周部に、バーナボディの外筒の上端部に着座する筒壁部が垂設されて、筒壁部に、周方向の間隔を存して複数の炎孔が形成されたコンロ用バーナにおいて、
バーナキャップの筒部に、周方向１箇所に位置させて、筒部の下端から上方にのびる切欠きが形成され、バーナボディの内筒内に、切欠きに挿入可能でバーナボディとは別体の位置決め部材が配置され、バーナキャップが正規位相で載置されるときは、切欠きに位置決め部材が挿入されて、バーナキャップの筒壁部がバーナボディの外筒の上端部に着座するが、バーナキャップが正規位相からずれた位相で載置されるときは、筒部の下端の切欠きが形成されていない部分が位置決め部材に乗り上げて、筒壁部が外筒の上端部から浮き上がるようにし、
更に、バーナボディの外筒の周方向１箇所に、径方向外方に窪む窪み部が外筒の上端部に達するように形成されると共に、バーナキャップの下面の周方向１箇所に、バーナキャップが正規位相で載置されるときに窪み部に嵌合するピン部が垂設され、筒部の切欠きに位置決め部材が挿入された状態で、切欠きに対する位置決め部材の挿入クリアランス分だけ筒部が周方向に動いたときの炎孔の周方向変位よりも、窪み部へのピン部の嵌合で、炎孔の周方向変位が小さく抑えられることを特徴とするコンロ用バーナ。 A hollow annular sheet metal burner body having an inner cylinder and an outer cylinder, and an annular burner cap mounted on the burner body, are inserted into the inner cylinder of the burner body at the inner peripheral edge of the burner cap. A cylindrical wall portion that is seated on the upper end portion of the outer cylinder of the burner body is suspended from the outer peripheral portion of the lower surface of the burner cap, and a plurality of cylindrical wall portions are provided at intervals in the circumferential direction. In the stove burner in which the flame hole of
A notch extending upward from the bottom end of the cylinder part is formed in the cylinder part of the burner cap at one location in the circumferential direction. It can be inserted into the notch in the inner cylinder of the burner body and is separate from the burner body When the positioning member is placed and the burner cap is placed in the normal phase, the positioning member is inserted into the notch, and the cylindrical wall portion of the burner cap is seated on the upper end portion of the outer cylinder of the burner body. when the burner cap is placed at a phase shifted from the normal phase, and a notch is not formed part of the lower end of the cylindrical portion rides on the positioning member, the cylindrical wall portion so as to float from the upper end portion of the outer tube ,
Further, a dent that is recessed radially outward reaches one end in the circumferential direction of the outer cylinder of the burner body, and a burner is formed at one circumferential position on the lower surface of the burner cap. When the cap is placed in the normal phase, the pin portion that fits into the recess portion is suspended, and the positioning member is inserted into the notch of the cylinder portion, and the cylinder is provided by the insertion clearance of the positioning member with respect to the notch. A stove burner characterized in that the circumferential displacement of the flame hole is suppressed to be smaller by the fitting of the pin portion to the recess than the circumferential displacement of the flame hole when the portion moves in the circumferential direction . 請求項１記載のコンロ用バーナであって、前記バーナボディの前記内筒に挿通される支持パイプと、支持パイプの上端部に支持される、前記バーナキャップよりも上方に突出する感熱ヘッドとを有する鍋底温度センサを備えるものにおいて、
支持パイプを固定する固定具に前記位置決め部材が一体に形成されることを特徴とするコンロ用バーナ。 2. The stove burner according to claim 1, wherein a support pipe inserted through the inner cylinder of the burner body, and a thermal head that is supported by an upper end portion of the support pipe and projects upward from the burner cap. In what has a pan bottom temperature sensor,
A stove burner, wherein the positioning member is integrally formed with a fixture for fixing a support pipe.
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