JP3459858B2 - Method of manufacturing burner burner and burner burner manufactured by the method - Google Patents
Method of manufacturing burner burner and burner burner manufactured by the methodInfo
- Publication number
- JP3459858B2 JP3459858B2 JP31716795A JP31716795A JP3459858B2 JP 3459858 B2 JP3459858 B2 JP 3459858B2 JP 31716795 A JP31716795 A JP 31716795A JP 31716795 A JP31716795 A JP 31716795A JP 3459858 B2 JP3459858 B2 JP 3459858B2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- umbrella
- secondary air
- air hole
- burner head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Gas Burners (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ガステーブル等
に用いられるこんろバーナの製造方法および該方法で製
造されたこんろバーナ関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a stove burner used for a gas table and the like and a method for manufacturing the same.
About the built-in stove burner .
【０００２】[0002]
【従来の技術】従来のこの種のこんろバーナ及びその製
造方法として、たとえば、特公平７−５４１６６号公報
に示されているものがある。これは、ガス通路部を形成
するバーナボディと、前記バーナボディの上部に載置す
るバーナキャップとからなるこんろバーナにおいて、円
形の二次空気孔を有するバーナキャップ本体部と、二次
空気孔の上部に位置する遮へい部と、二次空気孔の内径
面より内方へ突出し本体部と遮へい部を連接する複数の
凸部とを一体的に形成した構造のこんろバーナであり、
バーナキャップ本体部の上面に筒状の突出部を前記凸部
とともに一体成形した後、前記筒状の突出部の外周壁を
内面まで切削加工し、突出部の内面に設けた凸部を残し
て遮へい部とバーナキャップ本体部間に二次空気流通路
を形成した方法をもってこんろバーナを製造している。2. Description of the Related Art As a conventional stove burner of this type and a method of manufacturing the same, there is, for example, the one disclosed in Japanese Patent Publication No. 7-54166. This is a stove burner consisting of a burner body forming a gas passage portion and a burner cap placed on the burner body, and a burner cap main body portion having a circular secondary air hole and a secondary air hole. Is a stove burner having a structure in which a shield portion located at the upper part of the secondary air hole and a plurality of convex portions that protrude inward from the inner diameter surface of the secondary air hole and connect the main body portion and the shield portion are integrally formed,
After integrally molding a cylindrical protruding portion with the convex portion on the upper surface of the burner cap main body, the outer peripheral wall of the cylindrical protruding portion is cut to the inner surface, leaving the convex portion provided on the inner surface of the protruding portion. The stove burner is manufactured by a method in which a secondary air flow passage is formed between the shield part and the burner cap body part.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来のこんろバーナ及びその製造方法は、バーナキャップ
本体部と遮へい部を連接する複数の凸部が二次空気孔の
内径面より内方へ突出して一体形成されているから、鍛
造加工により筒状の突出部を凸部とともに一体成形する
際、突出部の内面を成形する成形用ピンの形状が複雑と
なって型もちが悪く耐久性にも欠け、安定した製品の量
産が不可能なために製造コストが高くなってしまうとい
う問題点があり、また、部分的凸部による脚では強度的
にも弱いという問題点もあった。However, in the above-described conventional stove burner and the manufacturing method thereof, a plurality of convex portions connecting the burner cap main body portion and the shield portion project inward from the inner diameter surface of the secondary air hole. Therefore, when a cylindrical protrusion is integrally molded with a protrusion by forging, the shape of the molding pin that molds the inner surface of the protrusion becomes complicated and the mold has poor durability and durability. There is a problem that the manufacturing cost is high because the chipping is not possible and stable mass production of the product is impossible, and there is also a problem that the leg with the partial convex portion is weak in strength.
【０００４】この発明のこんろバーナの製造方法および
該方法で製造されたこんろバーナは、上記課題を解決す
るために、ピン形状の単純化を図って製造コストの低減
を図り、併せて、強度的にも問題のないこんろバーナの
製造方法および該方法で製造されたこんろバーナの提供
を目的としている。A method for manufacturing a stove burner of the present invention and
In order to solve the above problems, the stove burner manufactured by the method aims to reduce the manufacturing cost by simplifying the pin shape .
It is intended to provide a manufacturing method and a stove burner manufactured by the method .
【０００５】[0005]
【課題を解決するための手段】上記課題を解決する第１
の発明は、こんろバーナの第１の製造方法であって、混
合室を備えたバーナ本体と、上記バーナ本体上に載置す
るバーナヘッドとからなり、上記バーナヘッドは中央に
二次空気孔を有し、上記バーナ本体上に載置することに
より周縁に多数の主炎口を形成する炎口溝を備えた本体
部と、上記二次空気孔を覆う傘とを有するこんろバーナ
において、上記バーナヘッドの本体部と傘は、上記二次
空気孔とその上部において連続する平面形状が略長円形
もしくは半円形をした凹入部を内面に有する突出部を成
形用ピンの凸部による内面の凹入部とともに鍛造加工に
より一体成形した後、上記突出部の外周壁を上記傘を形
成する天板部を残して少なくともその肉厚分以上を旋盤
加工により切削除去して断面円弧形状の脚で一体に連結
して形成し、かつ、上記本体部と傘との間には上記二次
空気孔に連通する二次空気流通開口を形成した方法であ
るから、鍛造加工による成形時における突出部の内面凹
入部を成形する成形用ピンの形状が、二次空気孔を成形
する円柱部の上部に平面形状が略長円形もしくは半円形
の凸部を有するに過ぎない単純形状であるから、鍛造加
工における成形用ピンの型もちがよく耐久性もある。そ
して、この成形用ピンによる突出部の内面凹入部の成形
は容易、確実に行いうる。また、突出部の外周壁の切削
は旋盤加工により傘を形成する天板部を残して外周壁の
少なくとも肉厚分以上を切削除去するだけでよいので、
この旋盤による切削加工も簡易に行いうる。この結果、
安定した製品の量産ができるので、製造コストは安くな
る。[Means for Solving the Problems] First to solve the above problems
The invention provides a first manufacturing method of this Nro burner, the burner body having a mixing chamber consists of a burner head placed on the burner body, said burner head is secondary air to the central In a stove burner having a hole, a main body portion having a flame hole groove that forms a large number of main flame holes at the periphery by being placed on the burner main body, and an umbrella that covers the secondary air hole. , main body and the umbrella of the burner head is formed a protrusion having a recess in which the planar shape is a substantially oval or semi-circular continuous at its upper and the secondary air holes on the inner surface
After integrally molding by forging with the concave part of the inner surface by the convex part of the shaping pin, at least the wall thickness of the outer peripheral wall of the protruding part is removed by lathing leaving the top plate part forming the umbrella. Since it is a method in which secondary air circulation openings communicating with the secondary air holes are formed between the main body and the umbrella, the forging is performed by forging. The shape of the molding pin that molds the recessed portion on the inner surface of the protrusion at the time of molding by processing has only a convex portion with a substantially oval or semicircular planar shape in the upper part of the cylindrical portion that molds the secondary air hole. Since it has a simple shape, the molding pin has good mold durability and durability during forging. Then, the inner surface recessed portion of the protruding portion can be easily and surely molded by the molding pin. Further, since cutting of the outer peripheral wall of the protruding portion may be performed by cutting and removing at least the wall thickness of the outer peripheral wall, leaving the top plate portion forming the umbrella by lathe processing,
This lathe can be easily cut. As a result,
Since stable mass production of products is possible, the manufacturing cost is low.
【０００６】上記課題を解決する第２の発明は、こんろ
バーナの第２の製造方法であって、混合室を備えたバー
ナ本体と、上記バーナ本体上に載置するバーナヘッドと
からなり、上記バーナヘッドは中央に二次空気孔を有
し、上記バーナ本体上に載置することにより周縁に多数
の主炎口を形成する炎口溝を備えた本体部と、上記二次
空気孔を覆う傘とを有するこんろバーナにおいて、上記
バーナヘッドの本体部と傘は、上記二次空気孔とその上
部において連続する平面形状が円形をした凹入部を内面
に有する突出部を成形用ピンの凸部による内面の凹入部
とともに鍛造加工により一体成形した後、上記突出部の
外周壁をその一部と上記傘を形成する天板部とを残して
フライス加工により切削除去して外周壁の一部による脚
で一体に連結して形成し、かつ、上記本体部と傘との間
には二次空気孔に連通する二次空気流通開口を形成した
方法であるから、鍛造加工による成形時における突出部
の内面凹入部を成形する成形用ピンの形状が、二次空気
孔を成形する円柱部の上部に平面形状が円形の凸部を連
続的に形成した全体として一連の円柱状に過ぎない単純
形状であるから、鍛造加工における成形用ピンの型もち
がよく耐久性もある。そして、この成形用ピンによる突
出部の内面凹入部の成形は容易、確実に行いうる。ま
た、突出部の外周壁の切削はその一部と傘を形成する天
板部とを残してフライス加工により切削除去するだけで
よいので、このフライス盤による切削加工も簡易に行い
うる。この結果、安定した製品の量産ができるので、製
造コストは安くなる。また、本体部と傘とは外周壁の一
部を残した脚により連結されるから、強度が大きく片持
ちでも安定する。A second invention for solving the above problems is a second method of manufacturing this Nro burner consists of a burner body having a mixing chamber, a burner head placed on the burner body The burner head has a secondary air hole in the center, and the main body is provided with a flame hole groove that forms a large number of main flame holes on the periphery by being placed on the burner body, and the secondary air hole. In the stove burner having an umbrella for covering the main body of the burner head and the umbrella, the secondary air hole and a protruding portion having an inner concave portion having a circular planar shape in the upper portion are formed on the molding pin. Inner surface concave part due to the convex part of
After integrally formed by forging together, linked together by the legs by a portion of the outer peripheral wall by cutting is removed by milling to leave the top plate portion which forms a part and the bevel outer peripheral wall of the projecting portion And, since it is a method of forming a secondary air circulation opening communicating with the secondary air hole between the main body portion and the umbrella, the inner surface recessed portion of the protrusion during molding by forging Since the shape of the molding pin to be molded is a simple shape that is only a series of cylindrical columns as a whole with a circular convex portion continuously formed on the top of the cylindrical portion that molds the secondary air hole, The shape of the molding pin in the processing is good and durable. Then, the inner surface recessed portion of the protruding portion can be easily and surely molded by the molding pin. Further, since the outer peripheral wall of the projecting portion may be cut and removed by milling while leaving a part thereof and the top plate portion forming the umbrella, the cutting by the milling machine can be easily performed. As a result, stable production of mass-produced products is possible, and the manufacturing cost is reduced. Further, since the main body and the umbrella are connected by the legs that leave a part of the outer peripheral wall, the strength is large and the cantilever is stable.
【０００７】上記課題を解決する第３の発明は、こんろ
バーナの第３の製造方法であって、混合室を備えたバー
ナ本体と、上記バーナ本体上に載置するバーナヘッドと
からなり、上記バーナヘッドは中央に二次空気孔を有
し、上記バーナ本体上に載置することにより周縁に多数
の主炎口を形成する炎口溝を備えた本体部と、上記二次
空気孔を覆う傘とを有するこんろバーナにおいて、上記
バーナヘッドの本体部と傘は、上記二次空気孔とその上
部において連続する平面形状が正四角形もしくは正三角
形等の多角形をした凹入部を内面に有する突出部を成形
用ピンの凸部による内面の凹入部とともに鍛造加工によ
り一体成形した後、上記突出部の外周壁を上記傘を形成
する天板部を残して上記凹入部の隅角部に喰い込むまで
切削除去して断面円弧形状の複数の脚で一体に連結して
形成し、かつ、上記本体部と傘との間には上記二次空気
孔と連通する二次空気流通開口を形成した方法であるか
ら、鍛造加工による成形時における突出部の内面凹入部
を成形する成形用ピンの形状が、二次空気孔を成形する
円柱部の上部に平面形状が正四角形もしくは正三角形等
の多角形の凸部を有するに過ぎない単純形状であるか
ら、鍛造加工における成形用ピンの型もちがよく耐久性
もある。そして、この成形用ピンによる突出部の内面凹
入部の成形は容易、確実に行いうる。また、突出部の外
周壁の切削は旋盤加工により傘を形成する天板部とを残
して凹入部の隅角部に喰い込むまで切削除去するだけで
あるから、この旋盤による切削加工も簡易に行いうる。
この結果、安定した製品の量産ができるので、製造コス
トは安くなる。また、本体部と傘とは複数の脚で連結さ
れるから、強度が大きく安定する。A third invention for solving the above problems is a third manufacturing method of this Nro burner consists of a burner body having a mixing chamber, a burner head placed on the burner body The burner head has a secondary air hole in the center, and the main body is provided with a flame hole groove that forms a large number of main flame holes on the periphery by being placed on the burner body, and the secondary air hole. In the stove burner having an umbrella for covering the main body of the burner head and the umbrella, the secondary air hole and a recessed portion having a polygonal shape such as a regular quadrangle or an equilateral triangle having a planar shape continuous at the upper portion thereof are formed on the inner surface. Molded protrusions on
After integrally molding by forging with the recessed part of the inner surface by the protruding part of the work pin, the outer peripheral wall of the protruding part is cut and removed until it bites into the corner part of the recessed part, leaving the top plate part forming the umbrella. Since it is formed by integrally connecting with a plurality of legs having an arc-shaped cross section, and a secondary air circulation opening communicating with the secondary air hole is formed between the main body and the umbrella. , The shape of the molding pin that molds the inner concave portion of the protrusion at the time of molding by forging is a polygonal convex part such as a regular quadrangle or a regular triangle in the upper part of the cylindrical part that molds the secondary air hole. Since it has a simple shape that only has, the mold of the molding pin in the forging process has good mold durability. Then, the inner surface recessed portion of the protruding portion can be easily and surely molded by the molding pin. Also, the cutting of the outer peripheral wall of the projecting part is simply done by latheing, leaving the top plate part that forms the umbrella and cutting into the corner of the recessed part. You can do it.
As a result, stable production of mass-produced products is possible, and the manufacturing cost is reduced. Moreover, since the main body and the umbrella are connected by a plurality of legs, the strength is large and stable.
【０００８】上記課題を解決する第４の発明は、こんろ
バーナの第４の製造方法であって、混合室を備えたバー
ナ本体と、上記バーナ本体上に載置するバーナヘッドと
からなり、上記バーナヘッドは中央に二次空気孔を有
し、上記バーナ本体上に載置することにより周縁に多数
の主炎口を形成する炎口溝を備えた本体部と、上記二次
空気孔を覆う傘とを有するこんろバーナにおいて、上記
バーナヘッドの本体部と傘は、上記二次空気孔とその上
部において連続する断面形状が一、十等の形をした仕切
壁を有する凹入部を内面に形成した突出部を成形用ピン
の凹溝を有する凸部による内面の凹入部とともに鍛造加
工により一体成形した後、上記突出部の外周壁を上記傘
を形成する天板部を残して少なくともその肉厚分以上を
旋盤加工により切削除去して仕切壁状の脚で一体に連結
して形成し、かつ、上記本体部と傘との間に上記二次空
気孔と連通する二次空気流通開口を形成した方法である
から、鍛造加工による成形時における突出部の内面凹入
部を成形する成形用ピンの形状が、二次空気孔を成形す
る円柱部の上部に一、十等の形をした仕切壁を成形する
凹溝を有するに過ぎない単純形状であるから、鍛造加工
における成形用ピンの型もちがよく耐久性もある。そし
て、この成形用ピンによる突出部の内面凹入部の成形は
容易、確実に行いうる。また、突出部の外周壁の切削は
旋盤加工により傘を形成する天板部を残して外周壁の少
なくとも肉厚分以上を切削除去するだけでよいので、こ
の旋盤による切削加工も簡易に行いうる。この結果、安
定した製品の量産ができるので、製造コストは安くな
る。また、本体部と傘とは断面形状が一、十等の形をし
た仕切壁状の脚で連結されるから、強度が大きく安定す
る。[0008] The fourth invention for solving the aforementioned problems is a fourth manufacturing method of this Nro burner from the burner body having a mixing chamber, a burner head placed on the burner body The burner head has a secondary air hole in the center, and the burner head has a main body portion having a flame port groove that forms a large number of main flame ports on the periphery by being placed on the burner body; In a stove burner having an umbrella covering the hole, the main body of the burner head and the umbrella have a recessed portion having a partition wall having a cross-sectional shape continuous at the secondary air hole and an upper portion of the secondary air hole. The protrusion formed on the inner surface of the pin
After being integrally formed by forging with the concave portion of the inner surface by the convex portion having the concave groove, at least the wall thickness of the outer peripheral wall of the protruding portion is cut by lathe leaving the top plate portion forming the umbrella. Since it is a method of removing and forming it by integrally connecting it with partition wall-shaped legs, and forming a secondary air circulation opening communicating with the secondary air hole between the main body and the umbrella, forging The shape of the molding pin for molding the inner recessed portion of the protrusion at the time of molding by processing has a concave groove for molding a partition wall in the shape of one, ten or more at the upper part of the cylindrical portion for molding the secondary air hole. Since it has only a simple shape, it has good mold durability and durability in the forging process. Then, the inner surface recessed portion of the protruding portion can be easily and surely molded by the molding pin. Further, since the outer peripheral wall of the protruding portion can be cut by lathing, at least the thickness of the outer peripheral wall is removed by leaving the top plate portion forming the umbrella, so that the lathe can also be easily cut. . As a result, stable production of mass-produced products is possible, and the manufacturing cost is reduced. Further, since the main body and the umbrella are connected by the partition wall-shaped legs having a cross-sectional shape of 1, 10, etc., the strength is large and stable.
【０００９】上記課題を解決する第５の発明は、上記第
１ないし第４のうち何れかの方法により製造されたこん
ろバーナであって、バーナヘッドの本体部と傘との連結
が強固となり、また、バーナの燃焼炎に対する二次空気
も安定して供給できる。 A fifth invention for solving the above-mentioned problems is to solve the above-mentioned problems.
The product manufactured by any one of the first to fourth methods
A burner, which connects the main body of the burner head and the umbrella
Becomes stronger, and the secondary air against the combustion flame of the burner
Can be stably supplied.
【００１０】[0010]
【発明の実施の形態】混合室１を備えたバーナ本体２
と、上記バーナ本体２上に載置するバーナヘッド４とか
らなり、上記バーナヘッド４は中央に二次空気孔７を有
し、上記バーナ本体２上に載置することにより周縁に多
数の主炎口５を形成する炎口溝３を備えた本体部６と、
上記二次空気孔７を覆う傘８とを具備するこんろバーナ
において（図１参照）、上記バーナヘッド４の本体部６
と傘８は、上記二次空気孔７の上部に形成された相対向
する断面円弧形状の脚９で両持ち状に一体に連結され、
かつ、上記本体部６と傘８との間には上記二次空気孔７
に連通する二次空気流通開口１０を形成した構成として
（図２〜図６参照）、バーナヘッド４の本体部６と傘８
とは相対向する断面円弧形状の脚９で強固に連結され、
また、中央二次空気孔７からの二次空気は二次空気流通
開口１０から外方に向けて流出して燃焼炎に対し燃焼用
二次空気として内側から作用するこんろバーナを提供す
る。BEST MODE FOR CARRYING OUT THE INVENTION A burner body 2 having a mixing chamber 1
And a burner head 4 mounted on the burner body 2, the burner head 4 has a secondary air hole 7 in the center, and by mounting the burner head 4 on the burner body 2, a large number of main edges are formed on the periphery. A main body portion 6 having a flame hole groove 3 forming a flame hole 5,
In a stove burner including an umbrella 8 that covers the secondary air holes 7 (see FIG. 1), the main body portion 6 of the burner head 4 is described.
The umbrella 8 and the umbrella 8 are integrally connected in a cantilevered manner by legs 9 having an arcuate cross-section which face each other and which are formed in the upper part of the secondary air hole 7,
Moreover, the secondary air hole 7 is provided between the main body 6 and the umbrella 8.
As a configuration in which a secondary air circulation opening 10 that communicates with the main body 6 of the burner head 4 and the umbrella 8 is formed.
And are firmly connected to each other by legs 9 having an arcuate cross section,
In addition, the secondary air from the central secondary air hole 7 flows outward from the secondary air circulation opening 10 to provide a stove burner that acts on the combustion flame as secondary air for combustion from the inside.
【００１１】そして、上記こんろバーナのバーナヘッド
４は、傘８の外形寸法と同径の天板部８ａを有する突出
部１１を、脚９を形成する内面の平面形状が略長円形を
した凹入部１２とともに鍛造加工で一体成形した後（図
２及び図５参照）、上記突出部１１の外周壁１１ａを傘
８を形成する天板部８ａを残して少なくともその肉厚分
ｔ以上を旋盤加工により切削除去して（図４及び図６参
照）、バーナヘッド４の本体部６と傘８とを相対向する
断面円弧形状の脚９で両持ち状に一体に連結して形成す
るとともに、本体部６と傘８との間には二次空気孔７と
連通する二次空気流通開口１０を形成する方法をもって
製造される。上記構成及び方法をもって作られたバーナ
ヘッド４はバーナ本体２と組合せてガステーブル等のこ
んろバーナとして用いられる。In the burner head 4 of the above stove burner, the projecting portion 11 having the top plate portion 8a having the same diameter as the outer dimension of the umbrella 8 has a planer shape of the inner surface forming the leg 9 in a substantially oval shape. After being integrally formed by forging together with the recessed portion 12 (see FIGS. 2 and 5), the outer peripheral wall 11a of the protruding portion 11 is at least lathe at least the wall thickness t thereof except the top plate portion 8a forming the umbrella 8. By cutting and removing by processing (see FIGS. 4 and 6), the main body portion 6 of the burner head 4 and the umbrella 8 are integrally connected in a cantilever manner with legs 9 having arcuate cross-sections facing each other. It is manufactured by a method of forming a secondary air flow opening 10 communicating with the secondary air hole 7 between the body portion 6 and the umbrella 8. The burner head 4 having the above-mentioned configuration and method is used in combination with the burner body 2 as a stove burner such as a gas table.
【００１２】以上この発明の実施の形態の一例について
説明したが、この発明はこうした実施の形態に何等限定
されるものではなく、この発明の要旨を逸脱しない範囲
において、様々なる形態で実施し得ることは勿論であ
る。Although an example of the embodiment of the present invention has been described above, the present invention is not limited to the embodiment and can be implemented in various forms without departing from the gist of the present invention. Of course.
【００１３】[0013]
【実施例】以下この発明の実施例について図面を参照し
て説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】第１実施例：図１〜図１３において、２は
バーナ本体で、混合管１ａの先端にループ状混合室１ｂ
を連通して備え、該ループ状混合室１ｂの上面外寄りに
後述するバーナヘッド４を支承する載置部１３を設ける
とともに、中央部にはバーナヘッド４の中央二次空気孔
７を形成する筒状部１４を挿入支持する支持部１５を備
えており、上記混合管１ａとループ状混合室１ｂからな
る混合室１を有する鈑金製のバーナ本体となしている。First Embodiment: In FIGS. 1 to 13, 2 is a burner main body, and a loop-shaped mixing chamber 1b is provided at the tip of a mixing pipe 1a.
And a mounting portion 13 for supporting a burner head 4 to be described later is provided outside the upper surface of the loop-shaped mixing chamber 1b, and a central secondary air hole 7 of the burner head 4 is formed in the central portion. A burner body made of sheet metal is provided with a supporting portion 15 for inserting and supporting the tubular portion 14, and having a mixing chamber 1 including the mixing pipe 1a and the loop-shaped mixing chamber 1b.
【００１５】４はバーナヘッドで、周縁下面に多数の炎
口溝３を放射状に備え、中央部には二次空気孔７を形成
する筒状部１４を有する本体部６と、該本体部６の二次
空気孔７の上方部には煮汁等のこんろ内への侵入を防ぐ
傘８を備えた構成となっており、後述する方法をもって
鍛造加工後一部切削加工して製造される。Reference numeral 4 denotes a burner head, which is provided with a large number of flame hole grooves 3 radially on the lower surface of the peripheral edge thereof, and a main body portion 6 having a cylindrical portion 14 forming a secondary air hole 7 in the central portion, and the main body portion 6 The upper part of the secondary air hole 7 is provided with an umbrella 8 for preventing the infusion of broth or the like into the cooking stove, and is manufactured by partially cutting after forging by the method described later.
【００１６】上記バーナ本体２上に上記バーナヘッド４
を載置してこんろバーナを構成するものであるが、バー
ナ本体２上にバーナヘッド４を載置するにあたり、バー
ナ本体２の支持部１５にバーナヘッド４の筒状部１４を
挿入支持し、バーナ本体２の載置部１３にバーナヘッド
４の炎口溝３部を載せることにより、その周縁に混合室
１に通ずる多数の主炎口５を形成するこんろバーナが構
成される（図１参照）。The burner head 4 is provided on the burner body 2.
Is placed to form a stove burner. When the burner head 4 is placed on the burner body 2, the tubular portion 14 of the burner head 4 is inserted and supported in the support portion 15 of the burner body 2. By mounting the flame port groove 3 of the burner head 4 on the mounting portion 13 of the burner body 2, a stove burner is formed in which a large number of main flame ports 5 communicating with the mixing chamber 1 are formed on the periphery thereof (see FIG. 1).
【００１７】９は上記バーナヘッド４の本体部６と中央
の二次空気孔７を覆う傘８とを連結する断面円弧形状の
脚で、次の方法（工程）をもって作られる。図２〜図６
に示されている実施例は、中央二次空気孔７を成形する
円柱部１６ｂの上部に平面形状が略長円形をした凸部１
６ａを一体に備えた成形用ピン１６を用い（図３参
照）、第１工程で上記成形用ピン１６の円柱部１６ｂで
成形される中央二次空気孔７と、その上部において連続
する凸部１６ａで形成される平面形状が略長円形をした
凹入部１２を内面に有し、かつ、傘８の外形寸法と同径
の天板部８ａを有する突出部１１を二次空気孔７ととも
に鍛造加工によって一体成形し（図２及び図５参照）、
第２工程では上記第１工程で作られた突出部１１の天板
部８ａを残した外周壁１１ａを、たとえば、その肉厚ｔ
だけ旋盤加工により切削してその切除部ａを切削除去す
ることにより、断面円弧形状の略三日月形をした脚９が
一体形成される。すなわち、突出部１１の外周壁１１ａ
がその肉厚ｔだけ真円状に切削除去されると、平面形状
が略長円形をした凹入部１２の短径部の対向面１２ａに
削残部ができ、この削残部が断面円弧形状の略三日月形
をした脚９として残り一体形成される（図５及び図６参
照）。したがって、この断面円弧形状の略三日月形をし
た脚９でバーナヘッド４の本体部６と傘８とを両持ち状
に一体に連結する（図４及び図６参照）。Reference numeral 9 is a leg having an arcuate cross section for connecting the main body 6 of the burner head 4 and the umbrella 8 covering the central secondary air hole 7, and is made by the following method (step). 2 to 6
In the embodiment shown in FIG. 1, the convex portion 1 having a substantially oval planar shape is provided on the upper portion of the cylindrical portion 16b forming the central secondary air hole 7.
6a is integrally provided (see FIG. 3), and the central secondary air hole 7 formed by the cylindrical portion 16b of the molding pin 16 in the first step and the continuous convex portion on the upper portion thereof are used. The projection 11 having the recessed portion 12 having a substantially oval planar shape formed by 16a on the inner surface and the top plate portion 8a having the same diameter as the outer dimension of the umbrella 8 is forged together with the secondary air hole 7. Integrally formed by processing (see FIGS. 2 and 5),
In the second step, the outer peripheral wall 11a, which has the top plate portion 8a of the protruding portion 11 formed in the first step, is removed by, for example, its wall thickness t.
Only by lathe cutting and removing the cut-out portion a, the substantially crescent-shaped leg 9 having an arc-shaped cross section is integrally formed. That is, the outer peripheral wall 11a of the protruding portion 11
When the wall thickness t is cut and removed in a perfect circle shape, an uncut portion is formed on the facing surface 12a of the short diameter portion of the recessed portion 12 having a substantially oval planar shape, and the uncut portion has a substantially arc-shaped cross section. The remaining crescent-shaped legs 9 are integrally formed (see FIGS. 5 and 6). Therefore, the main body 6 of the burner head 4 and the umbrella 8 are integrally supported in a cantilevered manner by the legs 9 having a substantially crescent shape having an arcuate cross section (see FIGS. 4 and 6).
【００１８】また、１０はバーナヘッド４の本体部６と
傘８との間に形成された中央の二次空気孔７と連通する
二次空気流通開口で、上記断面円弧形状の略三日月形を
した脚９の成形時に突出部１１の外周壁１１ａが切削除
去されることにより両側対向位置の脚９の間に形成され
る（図４及び図６参照）。Reference numeral 10 denotes a secondary air flow opening which communicates with a central secondary air hole 7 formed between the main body 6 of the burner head 4 and the umbrella 8, and which has a substantially crescent-shaped cross section. The outer peripheral wall 11a of the projecting portion 11 is cut and removed during the molding of the leg 9 thus formed, so that the leg 9 is formed between the legs 9 facing each other on both sides (see FIGS. 4 and 6).
【００１９】また、図７〜図１１に示されている実施例
は、中央二次空気孔７を成形する円柱部１６ｂの上部に
平面形状が略半円形をした凸部１６ａを一体に備えた成
形用ピン１６を用い（図８参照）、第１工程で上記成形
用ピン１６の円柱部１６ｂで成形される中央二次空気孔
７と、その上部において連続する凸部１６ａで成形され
る平面形状が略半円形をした凹入部１２を内面に有し、
かつ、傘８の外形寸法と同径の天板部８ａを有する突出
部１１を二次空気孔７とともに鍛造加工により一体成形
し（図７及び図１０参照）、第２工程では上記第１工程
で作られた突出部１１の天板部８ａを残した外周壁１１
ａを、たとえば、その肉厚ｔだけ旋盤加工により切削し
てその切除部ａを切削除去することにより、断面円弧形
状の略三日月形をした脚９が片側にだけ一体成形され
る。すなわち、突出部１１の外周壁１１ａがその肉厚ｔ
だけ真円状に切削除去されると、平面形状が略半円形を
した凹入部１２の直線平面部に削残部ができ、この削残
部が断面円弧形状の略三日月形をした脚９として残り一
体形成される（図１０及び図１１参照）。したがって、
この断面円弧形状の略三日月形をした脚９でバーナヘッ
ド４の本体部６と傘８とを片持ち状に一体に連結すると
ともに、バーナヘッド４の本体部６と傘８との間には二
次空気孔７に連通する二次空気流通開口１０が同時に形
成される（図９及び図１１参照）。Further, in the embodiment shown in FIGS. 7 to 11, the convex portion 16a having a substantially semicircular planar shape is integrally provided on the upper portion of the cylindrical portion 16b for forming the central secondary air hole 7. A plane formed by using the molding pin 16 (see FIG. 8), the central secondary air hole 7 formed by the cylindrical portion 16b of the molding pin 16 in the first step, and the continuous convex portion 16a at the upper portion thereof. The inner surface has a recess 12 having a substantially semicircular shape,
Moreover, the protrusion 11 having the top plate portion 8a having the same diameter as the outer dimension of the umbrella 8 is integrally formed by forging with the secondary air hole 7 (see FIGS. 7 and 10), and in the second step, the first step is performed. Outer peripheral wall 11 leaving the top plate 8a of the protrusion 11 made of
For example, by cutting a by a lathe processing by the thickness t and cutting and removing the excised portion a, the substantially crescent-shaped leg 9 having an arc cross section is integrally formed on only one side. That is, the outer peripheral wall 11a of the protruding portion 11 has a thickness t
When only the circular shape is cut and removed, an uncut portion is formed on the straight plane portion of the recessed portion 12 having a substantially semi-circular planar shape, and the uncut portion remains as a substantially crescent-shaped leg 9 having an arc cross section. Formed (see FIGS. 10 and 11). Therefore,
The main body 6 of the burner head 4 and the umbrella 8 are integrally connected in a cantilevered manner by the legs 9 having a substantially crescent shape with an arcuate cross section, and the main body 6 of the burner head 4 and the umbrella 8 are connected to each other. Secondary air circulation openings 10 communicating with the secondary air holes 7 are simultaneously formed (see FIGS. 9 and 11).
【００２０】さらに、図１２及び図１３に示されている
実施例は、先の図２〜図６に示されている実施例におけ
るバーナヘッド４の本体部６と傘８とを両側対向位置の
脚９で両持ち状に一体に連結するものにおいて、第２工
程における突出部１１の外周壁１１ａの切削除去をその
肉厚ｔより一定寸法（ｔ′−ｔ）だけ深く切り込んで断
面円弧形状の略三日月形をした脚９を両側対向位置に一
体成形することで先の実施例の脚より若干小さい脚とし
て二次空気流通開口１０の開口率を高めている。Further, in the embodiment shown in FIGS. 12 and 13, the main body portion 6 and the umbrella 8 of the burner head 4 in the embodiments shown in FIGS. In the case where the legs 9 are integrally connected in a cantilevered manner, the cutting removal of the outer peripheral wall 11a of the projecting portion 11 in the second step is cut deeper than the wall thickness t by a constant dimension (t'-t) to have an arc-shaped cross section. By integrally molding the substantially crescent-shaped legs 9 at the positions facing each other on both sides, the aperture ratio of the secondary air circulation opening 10 is increased as a leg slightly smaller than the leg of the previous embodiment.
【００２１】第２実施例：図１４〜図１６において、上
記第１実施例と同一機能を有する部分には同一符号を付
して説明する。この第２実施例は、バーナヘッド４の本
体部６と傘８とを突出部１１の外周壁１１ａの一部をそ
のまま利用した断面円弧形状の脚で連結したものであっ
て、次の方法（工程）をもって作られる。すなわち、中
央二次空気孔７を成形する円柱部の上部に平面形状が円
形をした凸部を連続的に一体形成し、全体として１つの
円柱体とした成形用ピン（図示せず）を用い、第１工程
で上記成形用ピンの円柱部で成形される中央二次空気孔
と、その上部において連続する凸部で成形される平面形
状が円形をした凹入部１２を内面に有し、かつ、傘８の
外形寸法と同径の天板部８ａを有する突出部１１を二次
空気孔７とともに鍛造加工により一体成形し（図１４参
照）、第２工程では上記第１工程で作られた突出部１１
の外周壁１１ａを、その一部と傘８を形成する天板部８
ａとを残してフライス加工により切削してその切除部ａ
を切削除去することにより、断面円弧形状の脚９が片側
にだけ一体形成され、この断面円弧形状の脚９でバーナ
ヘッド４の本体部６と傘８とを片持ち状に一体に連結す
るとともに、バーナヘッド４の本体部６と傘８との間に
は二次空気孔７に連通する二次空気流通開口１０を同時
に形成する（図１５及び図１６参照）。この第２実施例
の外周壁１１ａの一部による断面円弧形状の脚９を形成
する場合は、突出部１１の凹入部１２を成形する成形用
ピンの形状が全体として円柱状の単純形状でよく、ま
た、脚９の外面に削り跡が生ずることはなく、さらに、
片持ち状であっても強度的に丈夫である。なお、上記第
２実施例において、その他の構成は第１実施例と同一に
つき同一部分に同一符号を付してその説明は省略する。Second Embodiment: In FIGS. 14 to 16, parts having the same functions as those of the first embodiment will be described with the same reference numerals. In the second embodiment, the main body 6 of the burner head 4 and the umbrella 8 are connected by a leg having an arcuate cross-section that uses a part of the outer peripheral wall 11a of the protrusion 11 as it is. Process). That is, using a molding pin (not shown) in which a convex portion having a circular planar shape is continuously formed integrally on the upper portion of the cylindrical portion forming the central secondary air hole 7, and is formed as one cylindrical body as a whole. A central secondary air hole formed by the cylindrical portion of the forming pin in the first step, and a concave portion 12 having a circular planar shape formed by a continuous convex portion at the upper portion on the inner surface, and The protrusion 11 having the top plate 8a having the same diameter as the outer dimension of the umbrella 8 is integrally formed with the secondary air hole 7 by forging (see FIG. 14). In the second step, the protrusion 11 is formed in the first step. Protrusion 11
The outer peripheral wall 11a of the top plate portion 8 which forms the umbrella 8 with a part thereof.
A is left and is cut by milling and the cut portion a
By cutting and removing, the leg 9 having an arc-shaped cross section is integrally formed only on one side, and the main body 6 of the burner head 4 and the umbrella 8 are integrally connected in a cantilever manner with the leg 9 having an arc-shaped cross section. A secondary air circulation opening 10 communicating with the secondary air hole 7 is simultaneously formed between the main body 6 of the burner head 4 and the umbrella 8 (see FIGS. 15 and 16). When forming the leg 9 having an arcuate cross section by a part of the outer peripheral wall 11a of the second embodiment, the shape of the molding pin for molding the recess 12 of the protrusion 11 may be a simple columnar shape as a whole. Also, there is no shaving on the outer surface of the leg 9, and
Even if it is cantilevered, it is strong in strength. In the second embodiment, the rest of the configuration is the same as in the first embodiment, and the same parts are designated by the same reference numerals and the description thereof is omitted.
【００２２】第３実施例：図１７〜図２３において、上
記第１実施例と同一機能を有する部分には同一符号を付
して説明する。この第３実施例は、バーナヘッド４の本
体部６と傘８を断面円弧形状の複数の脚９で一体に連結
したものであって、次の方法（工程）をもって作られ
る。図１７〜図２３に示されている実施例は、中央二次
空気孔７を成形する円柱部１６ｂの上部に平面形状が正
四角形をした凸部を一体に備えた成形用ピン１６を用い
（図１８参照）、第１工程で上記成形用ピン１６の円柱
部１６ｂで成形される中央二次空気孔７と、その上部に
おいて連続する凸部１６ａで成形される平面形状が正四
角形の凹入部１２を内面に有し、かつ、傘８の外形寸法
と同径の天板部８ａを有する突出部１１を二次空気孔７
とともに鍛造加工により一体成形し（図１７及び図２０
参照）、第２工程では上記第１工程で作られた突出部１
１の天板部８ａを残した外周壁１１ａを旋盤加工により
凹入部１２の隅角部１２ｂに喰い込むまでの肉厚ｔを切
削してその切除部ａを切削除去することにより断面円弧
形状の略三日月形をした４つの脚９が一体形成される。
すなわち、突出部１１の外周壁１１ａが凹入部１２の隅
角部１２ｂに喰い込むまでの肉厚ｔだけ真円状に切削除
去されると、平面形状が正四角形をした凹入部１２の４
つの直線平面部１２ａに削残部ができ、この削残部が断
面円弧形状の略三日月形をした４つの脚９として残り一
体形成される（図２０及び図２１参照）。したがって、
この断面円弧形状の略三日月形をした４つの脚９でバー
ナヘッド４の本体部６と傘８とを一体に連結するととも
に、バーナヘッド４の本体部６と傘８との間には二次空
気孔７に連通する４つの二次空気流通開口１０が各々の
脚９間に同時に形成される（図１９及び図２１参照）。Third Embodiment: In FIGS. 17 to 23, portions having the same functions as those of the first embodiment will be described with the same reference numerals. The third embodiment is one in which the main body 6 of the burner head 4 and the umbrella 8 are integrally connected by a plurality of legs 9 having an arcuate cross section, and is manufactured by the following method (step). The embodiment shown in FIGS. 17 to 23 uses a molding pin 16 integrally provided with a convex portion having a regular square planar shape on the upper portion of a cylindrical portion 16b for molding the central secondary air hole 7 ( 18), a central secondary air hole 7 formed by the cylindrical portion 16b of the forming pin 16 in the first step, and a concave portion having a square shape in plan view formed by the convex portion 16a continuous thereabove. The secondary air hole 7 has a protrusion 11 having an inner surface 12 and a top plate 8a having the same diameter as the outer dimension of the umbrella 8.
Together with it is integrally formed by forging (see FIGS.
In the second step, the protrusion 1 made in the first step
The outer peripheral wall 11a with the top plate portion 8a of No. 1 left is cut by lathing to a thickness t until it bites into the corner 12b of the recessed portion 12 and the cut portion a is cut and removed to form an arc section. Four legs 9 having a substantially crescent shape are integrally formed.
That is, when the outer peripheral wall 11a of the projecting portion 11 is cut and removed in a perfect circular shape by a wall thickness t until it bites into the corner portion 12b of the recessed portion 12, the recessed portion 12 having a square tetragonal shape is formed.
An uncut portion is formed on each of the two straight plane portions 12a, and the uncut portion remains and is integrally formed as four crescent-shaped legs 9 having an arcuate cross section (see FIGS. 20 and 21). Therefore,
The main body 6 of the burner head 4 and the umbrella 8 are integrally connected by the four crescent-shaped legs 9 having an arcuate cross section, and a secondary portion is provided between the main body 6 of the burner head 4 and the umbrella 8. Four secondary air circulation openings 10 communicating with the air holes 7 are simultaneously formed between the legs 9 (see FIGS. 19 and 21).
【００２３】図１７〜図２３に示されている実施例は、
成形用ピンの凸部の平面形状を正三角形として平面形状
が正三角形をした凹入部１２を内面に有する突出部１１
を成形し、断面円弧形状の略三日月形をした３つの脚９
と各々の脚９間に３つの二次空気流通開口１０を形成し
たもので、その製造方法は図１７〜図２１に示されてい
る先の実施例と同一につき同一部分に同一符号を付して
その説明は省略する。なお、上記第３実施例において、
その他の構成は第１実施例と同一につき同一部分に同一
符号を付してその説明は省略する。The embodiment shown in FIGS. 17-23,
A protrusion 11 having a concave portion 12 on the inner surface in which the planar shape of the convex portion of the molding pin is an equilateral triangle and the planar shape is an equilateral triangle.
And three crescent-shaped legs with a circular arc cross section
And three secondary air circulation openings 10 are formed between each leg 9 and the manufacturing method thereof is the same as the previous embodiment shown in FIGS. 17 to 21, and the same parts are designated by the same reference numerals. The description will be omitted. In the third embodiment,
Since other configurations are the same as those of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.
【００２４】第４実施例：図２４〜図３０において、上
記第１実施例と同一機能を有する部分には同一符号を付
して説明する。この第４実施例は、バーナヘッド４の本
体部６と傘８を仕切壁状の脚９で一体に連結したもの
で、次の方法（工程）をもって作られる。図２４〜図２
８に示されている実施例では、中央二次空気孔７を成形
する円柱部１６ｂの上部に平面形状が−（マイナス）形
状の凹溝１６ｃを有する凸部１６ａを連続的に一体形成
した成形用ピン１６を用い（図２５参照）、第１工程で
上記成形用ピン１６の円柱部１６ｂで成形される中央二
次空気孔７と、その上部において連続する凸部１６ａで
成形される突壁１２ａを有する凹入部１２を内面に有
し、かつ、傘８の外形寸法と同径の天板部８ａを有する
突出部１１を二次空気孔７とともに鍛造加工により一体
成形し（図２４及び図２７参照）、第２工程では上記第
１工程で作られた突出部１１の外周壁１１ａを、たとえ
ば、その肉厚ｔだけ傘を形成する天板部８ａを残して旋
盤加工により切削してその切除部ａを切削除去すること
により、断面形状が−（マイナス）形の仕切壁状の脚９
が一体形成される。すなわち、突出部１１の外周壁１１
ａがその肉厚ｔだけ真円状に切削除去されると、断面形
状が−（マイナス）形をした突壁１２ａが残り、この削
残部が断面形状が−（マイナス）形をした脚９として一
体形成される（図２７及び図２８参照）。したがって、
この断面形状が−（マイナス）形の仕切壁状の脚９でバ
ーナヘッド４の本体部６と傘８とを一体に連結するとと
もに、バーナヘッド４の本体部６と傘８との間には二次
空気孔７に連通する二次空気流通開口１０が脚９の両側
に同時に形成される（図２６及び図２８参照）。Fourth Embodiment: In FIGS. 24 to 30, parts having the same functions as those of the first embodiment will be described with the same reference numerals. In the fourth embodiment, the main body portion 6 of the burner head 4 and the umbrella 8 are integrally connected by a partition wall leg 9, and can be manufactured by the following method (process). 24 to 2
In the embodiment shown in FIG. 8, molding in which a convex portion 16a having a concave groove 16c having a − (minus) planar shape is continuously and integrally formed on an upper portion of a cylindrical portion 16b for molding the central secondary air hole 7. 25, the central secondary air hole 7 formed by the cylindrical portion 16b of the forming pin 16 in the first step, and the projecting wall formed by the convex portion 16a continuous thereabove. The protrusion 11 having the recessed portion 12 having the inner surface 12a and the top plate portion 8a having the same diameter as the outer dimension of the umbrella 8 is integrally formed with the secondary air hole 7 by forging (FIG. 24 and FIG. 27), in the second step, the outer peripheral wall 11a of the protruding portion 11 made in the first step is cut by lathe processing, for example, leaving the top plate portion 8a forming the umbrella by the thickness t thereof. By cutting and removing the cut portion a, the cross-sectional shape is (Minus) the form of the partition wall shaped legs 9
Are integrally formed. That is, the outer peripheral wall 11 of the protruding portion 11
When a is cut and removed by a thickness t in a perfect circle shape, a protruding wall 12a having a negative cross section is left, and the uncut portion is used as a leg 9 having a negative cross section. It is integrally formed (see FIGS. 27 and 28). Therefore,
The main body 6 of the burner head 4 and the umbrella 8 are integrally connected by a leg 9 having a partition wall shape whose cross-sectional shape is-(minus) shape, and between the main body 6 of the burner head 4 and the umbrella 8. Secondary air circulation openings 10 communicating with the secondary air holes 7 are simultaneously formed on both sides of the leg 9 (see FIGS. 26 and 28).
【００２５】図３１及び図３２に示されている実施例
は、図２４〜図２８に示されている先の実施例の断面形
状が−（マイナス）形の仕切壁状の脚９で本体部６と傘
８とを一体に連結するものにおいて、第２工程における
突出部１１の外周壁１１ａの切削除去をその肉厚ｔより
一定寸法（ｔ′−ｔ）だけ深く切り込んで仕切壁状の脚
９を一体成形することで先の実施例の脚よりその長さを
若干短かくして二次空気流通開口１０の開口率を高めて
いる。また、図２９に示されている実施例は、仕切壁状
の脚９を２つの凹溝を交叉状に備えた凸部を有する成形
用ピン（図示せず）を用いて突壁を有する凹入部を成形
し、本体部と傘８とを突壁１２ａによる＋（プラス）状
の脚９で一体に連結し、図３０に示されている実施例
は、仕切壁状の脚９を三方に延びる凹溝を備えた凸部を
有する成形用ピン（図示せず）を用いて突壁を有する凹
入部を成形し、本体部と傘８とを突壁１２ａによるＹ字
状の脚９で一体に連結したもので、その製造方法は図２
４〜図３０に示されている先の実施例と同一につき同一
部分に同一符号を付してその説明は省略する。なお、上
記第３実施例において、その他の構成は第１実施例と同
一につき同一部分に同一符号を付してその説明は省略す
る。上記第４実施例の仕切壁状の脚９は、端部にエッジ
がないので取扱い上安全であり、また、強度も大きく丈
夫である。なお、第４実施例において、その他の構成は
第１実施例と同一につき同一部分に同一符号を付してそ
の説明は省略する。The embodiment shown in FIGS. 31 and 32 is a partition wall-shaped leg 9 whose cross-sectional shape is the negative (-) cross-section of the previous embodiment shown in FIGS. 6 and the umbrella 8 are integrally connected, a partition wall-shaped leg is formed by cutting the outer peripheral wall 11a of the protruding portion 11 in the second step by cutting deeper than the wall thickness t by a predetermined dimension (t'-t). By integrally molding 9, the length is made slightly shorter than the leg of the previous embodiment, and the opening ratio of the secondary air circulation opening 10 is increased. Further, in the embodiment shown in FIG. 29, a partition wall-shaped leg 9 is formed into a concave wall having a protruding wall by using a molding pin (not shown) having a convex portion provided with two concave grooves in an intersecting shape. The insertion part is molded, and the main body part and the umbrella 8 are integrally connected by the + (plus) -shaped leg 9 by the projecting wall 12a. In the embodiment shown in FIG. 30, the partition wall-shaped leg 9 is formed on three sides. A recessed portion having a protruding wall is formed by using a forming pin (not shown) having a protruding portion having an extending recessed groove, and the main body portion and the umbrella 8 are integrated by the Y-shaped leg 9 formed by the protruding wall 12a. 2 and the manufacturing method is shown in FIG.
Since they are the same as the previous embodiments shown in FIGS. 4 to 30, the same parts are designated by the same reference numerals and the description thereof will be omitted. In the third embodiment, the rest of the configuration is the same as in the first embodiment, and the same parts are designated by the same reference numerals and the description thereof is omitted. The partition wall-shaped leg 9 of the fourth embodiment is safe in handling because it has no edges at its end, and is strong and strong. Since the other structures of the fourth embodiment are the same as those of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.
【００２６】以上の第１〜第４実施例において、成形用
ピン１６の二次空気孔７を成形する円柱部１６ｂと凹入
部１２を成形する凸部１６ａを、たとえば、図３、図
８、図１３、図１８に例示されているように、全体とし
て裁頭円錐台状又は凸部１６ａだけを裁頭角錐台状とす
ると、鍛造加工時の型抜きが容易となり、型もちがよく
その耐久性は倍加する。In the above-described first to fourth embodiments, the cylindrical portion 16b for forming the secondary air hole 7 of the forming pin 16 and the convex portion 16a for forming the recessed portion 12 are provided, for example, in FIGS. As illustrated in FIG. 13 and FIG. 18, when the truncated cone shape as a whole or only the convex portion 16a is made into a truncated pyramid shape, it becomes easy to remove the die at the time of forging, and the die has good durability and durability. Gender doubles.
【００２７】[0027]
【発明の効果】以上説明したこの発明のこんろバーナの
製造方法によれば、バーナヘッドの本体部と傘とを連結
する脚が、たとえば、断面円弧形状又は仕切壁状となっ
ているから、突出部の内面凹入部を成形するピン形状が
単純化できるため、その型もちがよく耐久性も倍加す
る。そして、旋盤、フライス盤による切削除去加工も容
易であるため、安定した製品の量産が可能であり、ま
た、製造コストも大幅に低減することができる。 EFFECT OF THE INVENTION The stove burner of the present invention described above
According to the manufacturing method, the main body of the burner head and the umbrella are connected.
The leg to be used has, for example, an arc-shaped cross section or a partition wall shape.
Therefore, the pin shape that molds the inner recess of the protrusion is
Because it can be simplified, its shape is good and its durability is doubled.
It Also, cutting and removal processing with a lathe or milling machine is acceptable.
Since it is easy, stable mass production of products is possible.
Also, the manufacturing cost can be significantly reduced.
【００２８】また、この発明のこんろバーナによれば、
バーナヘッドの本体部と傘とを、たとえば、断面円弧形
状又は仕切壁状をした脚により一体に連結したから、強
度的に極めて強く、また、鍛造加工による成形に際して
も成形用ピンの形状が単純化できる。 According to the stove burner of the present invention,
The main body of the burner head and the umbrella are, for example, arc-shaped in cross section.
-Shaped or partition wall-shaped legs are connected together,
It is extremely strong in terms of strength, and when forming by forging.
Also, the shape of the molding pin can be simplified.
【図１】この発明のこんろバーナの一実施例を示した全
体断面図である。FIG. 1 is an overall sectional view showing an embodiment of a stove burner of the present invention.
【図２】第１実施例における一実施例の第１工程で作ら
れたバーナヘッドの半完成の成形品を示した断面図であ
る。FIG. 2 is a cross-sectional view showing a semi-finished molded product of a burner head manufactured in a first step of an example in the first example.
【図３】その成形用ピンの斜視図である。FIG. 3 is a perspective view of the molding pin.
【図４】第２工程で切削加工したバーナヘッドの完成品
を示した断面図である。FIG. 4 is a cross-sectional view showing a completed burner head that has been cut in a second step.
【図５】図２のＡ−Ａ断面図である。5 is a cross-sectional view taken along the line AA of FIG.
【図６】図４のＢ−Ｂ断面図である。6 is a sectional view taken along line BB of FIG.
【図７】異なる実施例の第１工程で作られたバーナヘッ
ドの半完成の成形品を示した断面図である。FIG. 7 is a cross-sectional view showing a semi-finished molded product of a burner head manufactured in the first step of a different embodiment.
【図８】その成形用ピンの斜視図である。FIG. 8 is a perspective view of the molding pin.
【図９】第２工程で切削加工したバーナヘッドの完成品
を示した断面図である。FIG. 9 is a cross-sectional view showing a completed burner head that has been cut in the second step.
【図１０】図７のＣ−Ｃ断面図である。10 is a cross-sectional view taken along line CC of FIG.
【図１１】図９のＤ−Ｄ断面図である。11 is a cross-sectional view taken along the line DD of FIG.
【図１２】第１実施例における第２工程の切削加工時の
切り込み量を異にする半完成の成形品の要部の断面図で
ある。FIG. 12 is a cross-sectional view of a main part of a semi-finished molded product having different cutting depths during the cutting process of the second step in the first example.
【図１３】その切削加工後の完成品の同断面図である。FIG. 13 is a sectional view of the finished product after the cutting process.
【図１４】第２実施例における第１工程で作られたバー
ナヘッドの半完成の成形品を示した断面図である。FIG. 14 is a cross-sectional view showing a semi-finished molded product of the burner head manufactured in the first step in the second embodiment.
【図１５】第２工程で切削加工したバーナヘッドの完成
品を示した断面図である。FIG. 15 is a cross-sectional view showing a completed burner head that has been cut in the second step.
【図１６】図１５のＥ−Ｅ断面図である。16 is a cross-sectional view taken along line EE of FIG.
【図１７】第３実施例における一実施例の第１工程で作
られたバーナヘッドの半完成の成形品を示した断面図で
ある。FIG. 17 is a cross-sectional view showing a semi-finished molded product of the burner head manufactured in the first step of the third embodiment.
【図１８】その成形用ピンの斜視図である。FIG. 18 is a perspective view of the molding pin.
【図１９】第２工程で切削加工したバーナヘッドの完成
品を示した断面図である。FIG. 19 is a cross-sectional view showing a finished burner head that has been cut in the second step.
【図２０】図１７のＦ−Ｆ断面図である。20 is a cross-sectional view taken along line FF of FIG.
【図２１】図１９のＧ−Ｇ断面図である。21 is a cross-sectional view taken along line GG of FIG.
【図２２】第３実施例における異なる実施例の第１工程
で作られたバーナヘッドの半完成の成形品を示した要部
断面図である。FIG. 22 is a sectional view of essential parts showing a semi-finished molded product of a burner head manufactured in a first step of a different embodiment from the third embodiment.
【図２３】第２工程における切削加工後の完成品の同断
面図である。FIG. 23 is a cross-sectional view of the finished product after the cutting process in the second step.
【図２４】第４実施例における一実施例の第１工程で作
られたバーナヘッドの半完成の成形品を示した断面図で
ある。FIG. 24 is a cross-sectional view showing a semi-finished molded product of the burner head manufactured in the first step of the fourth embodiment.
【図２５】その成形用ピンの斜視図である。FIG. 25 is a perspective view of the molding pin.
【図２６】第２工程で切削加工したバーナヘッドの完成
品を示した断面図である。FIG. 26 is a cross-sectional view showing a completed burner head that has been cut in the second step.
【図２７】図２４のＨ−Ｈ断面図である。27 is a sectional view taken along line HH of FIG. 24.
【図２８】図２６のＪ−Ｊ断面図である。28 is a sectional view taken along line JJ of FIG. 26.
【図２９】第４実施例における異なる実施例のバーナヘ
ッドの完成品の要部断面図である。FIG. 29 is a cross-sectional view of essential parts of a completed burner head of a fourth embodiment of the invention.
【図３０】第４実施例における異なる実施例のバーナヘ
ッドの完成品の要部断面図である。FIG. 30 is a cross-sectional view of a main part of a completed burner head of another embodiment in the fourth embodiment.
【図３１】第４実施例における第２工程の切削加工時の
切り込み量を異にする半完成の成形品の要部の断面図で
ある。FIG. 31 is a cross-sectional view of a main part of a semi-finished molded product having different cutting depths during the cutting process of the second step in the fourth example.
【図３２】その切削加工後の完成品の同断面図である。FIG. 32 is a sectional view of the finished product after the cutting process.
１…混合室、２…バーナ本体、３…炎口溝、４…バーナ
ヘッド、５…主炎口、６…本体部、７…二次空気孔、８
…傘、９…脚、１０…二次空気流通開口、１１…突出
部、８ａ…天板部、１１ａ…外周壁、１２…凹入部、１
６…成形用ピンDESCRIPTION OF SYMBOLS 1 ... Mixing chamber, 2 ... Burner main body, 3 ... Flame port groove, 4 ... Burner head, 5 ... Main flame port, 6 ... Main body part, 7 ... Secondary air hole, 8
... Umbrella, 9 ... Legs, 10 ... Secondary air circulation opening, 11 ... Projection portion, 8a ... Top plate portion, 11a ... Outer peripheral wall, 12 ... Recessed portion, 1
6 ... Molding pin
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F23D 14/06 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) F23D 14/06
Claims (5)
ナ本体上に載置するバーナヘッドとからなり、上記バー
ナヘッドは中央に二次空気孔を有し、上記バーナ本体上
に載置することにより周縁に多数の主炎口を形成する炎
口溝を備えた本体部と、上記二次空気孔を覆う傘とを有
するこんろバーナにおいて、 上記バーナヘッドの本体部と傘は、上記二次空気孔とそ
の上部において連続する平面形状が略長円形もしくは半
円形をした凹入部を内面に有する突出部を成形用ピンの
凸部による内面の凹入部とともに鍛造加工により一体成
形した後、上記突出部の外周壁を上記傘を形成する天板
部を残して少なくともその肉厚分以上を旋盤加工により
切削除去して断面円弧形状の脚で一体に連結して形成さ
れ、かつ、上記本体部と傘との間には上記二次空気孔に
連通する二次空気流通開口が形成されることを特徴とす
るこんろバーナの製造方法。1. A burner body having a mixing chamber, and a burner head mounted on the burner body, wherein the burner head has a secondary air hole in the center and is mounted on the burner body. In the hob burner having a main body portion having a flame hole groove that forms a large number of main flame openings on the periphery thereof, and an umbrella that covers the secondary air holes, the main body portion and the umbrella of the burner head are The projection pin of the molding pin has a protrusion having an inward recess having a substantially elliptical or semicircular planar shape continuous in the next air hole and the upper portion thereof .
After being integrally formed by forging with the concave portion of the inner surface by the convex portion, the outer peripheral wall of the protruding portion is cut and removed by lathe processing at least at least its wall thickness leaving the top plate portion forming the umbrella Formed by integrally connecting with shaped legs
It is, and method for producing a stove burner, characterized in that the secondary air flow opening communicating with the secondary air hole is formed between the body portion and the umbrella.
ナ本体上に載置するバーナヘッドとからなり、上記バー
ナヘッドは中央に二次空気孔を有し、上記バーナ本体上
に載置することにより周縁に多数の主炎口を形成する炎
口溝を備えた本体部と、上記二次空気孔を覆う傘とを有
するこんろバーナにおいて、 上記バーナヘッドの本体部と傘は、上記二次空気孔とそ
の上部において連続する平面形状が円形をした凹入部を
内面に有する突出部を成形用ピンの凸部による内面の凹
入部とともに鍛造加工により一体成形した後、上記突出
部の外周壁をその一部と上記傘を形成する天板部とを残
してフライス加工により切削除去して外周壁の一部によ
る脚で一体に連結して形成され、かつ、上記本体部と傘
との間には二次空気孔に連通する二次空気流通開口が形
成されることを特徴とするこんろバーナの製造方法。2. A burner body having a mixing chamber, and a burner head mounted on the burner body, wherein the burner head has a secondary air hole in the center and is mounted on the burner body. In the hob burner having a main body portion having a flame hole groove that forms a large number of main flame openings on the periphery thereof, and an umbrella that covers the secondary air holes, the main body portion and the umbrella of the burner head are A concave portion on the inner surface formed by the convex portion of the molding pin is provided with a protrusion having an inner surface that is a circular continuous planar shape at the next air hole and above it.
After integrally molding with the insertion part by forging, the outer peripheral wall of the protruding part is cut and removed by milling leaving a part of the outer peripheral wall and the top plate forming the umbrella, and integrally formed with legs by part of the outer peripheral wall. It is formed by connecting, and method for producing a stove burner, characterized in that the secondary air flow opening communicating with the secondary air hole is shaped <br/> formed in between the body portion and the umbrella .
ナ本体上に載置するバーナヘッドとからなり、上記バー
ナヘッドは中央に二次空気孔を有し、上記バーナ本体上
に載置することにより周縁に多数の主炎口を形成する炎
口溝を備えた本体部と、上記二次空気孔を覆う傘とを有
するこんろバーナにおいて、 上記バーナヘッドの本体部と傘は、上記二次空気孔とそ
の上部において連続する平面形状が正四角形もしくは正
三角形等の多角形をした凹入部を内面に有する突出部を
成形用ピンの凸部による内面の凹入部とともに鍛造加工
により一体成形した後、上記突出部の外周壁を上記傘を
形成する天板部を残して上記凹入部の隅角部に喰い込む
まで切削除去して断面円弧形状の複数の脚で一体に連結
して形成し、かつ、上記本体部と傘との間には上記二次
空気孔と連通する二次空気流通開口が形成されることを
特徴とするこんろバーナの製造方法。3. A burner body having a mixing chamber, and a burner head mounted on the burner body, wherein the burner head has a secondary air hole in the center and is mounted on the burner body. In the hob burner having a main body portion having a flame hole groove that forms a large number of main flame openings on the periphery thereof, and an umbrella that covers the secondary air holes, the main body portion and the umbrella of the burner head are A protrusion having a concave portion on the inner surface, which has a polygonal shape such as a regular quadrangle or an equilateral triangle, which is continuous in the next air hole and above
After integrally molding by forging with the recessed part of the inner surface by the convex part of the molding pin, the outer peripheral wall of the protruding part is cut until it bites into the corner part of the recessed part, leaving the top plate part forming the umbrella. removed and formed by connecting together a plurality of legs of arcuate cross-sectional shape, and that the secondary air flow opening communicating with the secondary air hole is formed between the body portion and the umbrella Characteristic method of manufacturing stove burner.
ナ本体上に載置するバーナヘッドとからなり、上記バー
ナヘッドは中央に二次空気孔を有し、上記バーナ本体上
に載置することにより周縁に多数の主炎口を形成する炎
口溝を備えた本体部と、上記二次空気孔を覆う傘とを有
するこんろバーナにおいて、 上記バーナヘッドの本体部と傘は、上記二次空気孔とそ
の上部において連続する断面形状が一、十等の形をした
仕切壁を有する凹入部を内面に形成した突出部を成形用
ピンの凹溝を有する凸部による内面の凹入部とともに鍛
造加工により一体成形した後、上記突出部の外周壁を上
記傘を形成する天板部を残して少なくともその肉厚分以
上を旋盤加工により切削除去して仕切壁状の脚で一体に
連結して形成され、かつ、上記本体部と傘との間に上記
二次空気孔と連通する二次空気流通開口が形成されるこ
とを特徴とするこんろバーナの製造方法。4. A burner body having a mixing chamber, and a burner head mounted on the burner body, wherein the burner head has a secondary air hole in the center and is mounted on the burner body. In the hob burner having a main body portion having a flame hole groove that forms a large number of main flame openings on the periphery thereof, and an umbrella that covers the secondary air holes, the main body portion and the umbrella of the burner head are sectional shape one contiguous with the next air hole at its upper portion, for forming a projecting portion formed on the inner surface of the recessed portion having a partition wall in the form of ten such
After integrally molding by forging with the recessed portion of the inner surface by the convex portion having the concave groove of the pin, the outer peripheral wall of the protruding portion is at least the thickness of the ceiling plate portion that forms the umbrella. the formed and integrally connected by the partition wall shaped legs by cutting is removed by turning and the secondary air flow opening communicating with the secondary air holes between the body portion and the umbrella are formed above method for producing a stove burner, wherein this <br/> and that.
なくともいずれかの方法により製造されたことを特徴とCharacterized by being manufactured by either method
するこんろバーナ。A stove burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31716795A JP3459858B2 (en) | 1995-11-10 | 1995-11-10 | Method of manufacturing burner burner and burner burner manufactured by the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31716795A JP3459858B2 (en) | 1995-11-10 | 1995-11-10 | Method of manufacturing burner burner and burner burner manufactured by the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09137920A JPH09137920A (en) | 1997-05-27 |
| JP3459858B2 true JP3459858B2 (en) | 2003-10-27 |
Family
ID=18085213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31716795A Expired - Fee Related JP3459858B2 (en) | 1995-11-10 | 1995-11-10 | Method of manufacturing burner burner and burner burner manufactured by the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3459858B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5182745B2 (en) * | 2007-10-26 | 2013-04-17 | リンナイ株式会社 | Parent and child burner |
-
1995
- 1995-11-10 JP JP31716795A patent/JP3459858B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09137920A (en) | 1997-05-27 |
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