JP2015025613A - Grill burner - Google Patents
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- JP2015025613A JP2015025613A JP2013155178A JP2013155178A JP2015025613A JP 2015025613 A JP2015025613 A JP 2015025613A JP 2013155178 A JP2013155178 A JP 2013155178A JP 2013155178 A JP2013155178 A JP 2013155178A JP 2015025613 A JP2015025613 A JP 2015025613A
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 55
- 230000002093 peripheral effect Effects 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000002737 fuel gas Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
Description
本発明は、グリルバーナ、特に、焼き物調理を行うグリル庫内にて被調理物を上方から加熱するグリルバーナに関する。 TECHNICAL FIELD The present invention relates to a grill burner, and more particularly to a grill burner that heats an object to be cooked from above in a grill cabinet that performs grilling.
例えば、図５に示すように、システムキッチンに組み込まれるドロップインコンロやテーブルコンロ等に搭載されているグリル庫(32)内に搭載されるグリルバーナとして、グリル庫(32)の天井部には、下面に多数の炎孔が形成された板金製の上火バーナ(20)が配置されており、グリル庫(32)の下部域の左右両側壁には、焼網とグリル皿との間に複数の炎孔が位置するように左右一対のブンゼンバーナからなる下火バーナ(21)がそれぞれ配設されている。
これら上火バーナ(20)及び下火バーナ(21)を燃焼させることによって、グリル庫(32)内の被調理物(4)は加熱調理される。
For example, as shown in FIG. 5, as a grill burner mounted in a grill cabinet (32) mounted on a drop-in stove or table stove incorporated in a system kitchen, the ceiling of the grill cabinet (32) An upper fire burner (20) made of sheet metal with a large number of flame holes formed on the lower surface is arranged, and on the left and right side walls of the lower area of the grill cabinet (32), a plurality of grills are placed between the grill and the grill pan. A lower fire burner (21) consisting of a pair of left and right bunsen burners is arranged so that the flame holes of the above are located.
By burning the upper fire burner (20) and the lower fire burner (21), the cooking object (4) in the grill box (32) is heated and cooked.
グリル庫(32)の後方には、被調理物(4)から発生した油煙や、上火バーナ(20)及び下火バーナ(21)の燃焼による燃焼排気が流れる排気筒(31)が設けられてあり、この排気筒(31)の下流端が、ドロップインコンロやテーブルコンロ等の天板(3)に開口させた排気口(30)となっている。この排気口(30)を上方から覆うように排気口カバー(5)が天板(3)に着脱自在に設置されている。 Behind the grill box (32) is provided an exhaust pipe (31) through which oil smoke generated from the cooking object (4) and combustion exhaust from combustion of the upper fire burner (20) and lower fire burner (21) flow. The downstream end of the exhaust tube (31) is an exhaust port (30) opened in a top plate (3) such as a drop-in stove or a table stove. An exhaust port cover (5) is detachably installed on the top plate (3) so as to cover the exhaust port (30) from above.
上火バーナ(20)は、上側本体部材(20a)と下側本体部材(20b)から構成されている。これら上側本体部材(20a)及び下側本体部材(20b)は、共に、アルミメッキ鋼板やステンレス板等の金属板をプレス加工することにより、略矩形状体の一辺からベンチュリー混合管(25)が側方へ突出する形状に成型されており、各々の全周に渡って張り出させた上下外周フランジ部(28a)(28b)（図６参照）相互を重ね合わせて周囲をカシメることにより一体的に結合されている。なお、上下外周フランジ部(28a)(28b)の内方には空間部が形成されており、この空間部にベンチュリー混合管(25)から燃料ガスが供給される。 The upper fire burner (20) is composed of an upper body member (20a) and a lower body member (20b). Both the upper body member (20a) and the lower body member (20b) are formed by pressing a metal plate such as an aluminized steel plate or stainless steel plate so that the Venturi mixing tube (25) is formed from one side of a substantially rectangular body. It is molded into a shape that protrudes to the side, and the upper and lower outer peripheral flanges (28a) and (28b) (see Fig. 6) projecting over the entire circumference are overlapped with each other and crimped around Combined. A space is formed inside the upper and lower outer peripheral flanges (28a) and (28b), and fuel gas is supplied to the space from the venturi mixing pipe (25).
図６は、ベンチュリー混合管(25)を省略した上火バーナ(20)の底面図である。
下側本体部材(20b)には、略矩形状体の所定位置を下方（例えば、１ｍｍ程度）へ絞り下げる絞り加工が施されており、後方の排気口へ向かう方向に対して平行な３本の縦下方絞り部(2a)(2b)(2c)と、前後両端でこれら縦下方絞り部(2a)(2b)(2c)を連続させる横下方絞り部(2d)(2e)とが下方に凸に形成されており、これら縦下方絞り部(2a)(2b)(2c)の下面と、グリル庫(32)の前方側（図面では下側）に配置される横下方絞り部(2d)の下面に、多数の炎孔(27)が形成されて燃焼部(22)を構成している。
FIG. 6 is a bottom view of the upper fire burner (20) in which the venturi mixing pipe (25) is omitted.
The lower body member (20b) is subjected to a drawing process for reducing the predetermined position of the substantially rectangular body downward (for example, about 1 mm), and three parallel to the direction toward the rear exhaust port. The lower and lower diaphragms (2a), (2b) and (2c), and the lower and lower diaphragms (2d) and (2e) connecting these vertical and lower diaphragms (2a), (2b) and (2c) at the front and rear ends A laterally downward restricting portion (2d) which is formed in a convex shape and is arranged on the lower surface of these vertically downward restricting portions (2a), (2b) and (2c) and on the front side (lower side in the drawing) of the grill cabinet (32) A large number of flame holes (27) are formed on the lower surface of the combustion chamber (22) to constitute the combustion section (22).
そして、縦下方絞り部(2a)(2b)(2c)と横下方絞り部(2d)(2e)とによって囲まれた各範囲は、これら縦下方絞り部(2a)(2b)(2c)及び横下方絞り部(2d)(2e)の下面よりも上方に絞り上げられて、熱歪補強用の縦上方絞り部(23a)(23b)が形成されている。 And each range surrounded by the vertical lower diaphragms (2a) (2b) (2c) and the horizontal lower diaphragms (2d) (2e), these vertical lower diaphragms (2a) (2b) (2c) and The upper and lower restricting portions (23a) and (23b) for reinforcing the heat distortion are formed by being drawn up above the lower surfaces of the horizontally lower restricting portions (2d) and (2e).
なお、図示しないが、上側本体部材(20a)の上外周フランジ部(28a)よりも内側は、上方へ絞り上げられており、上記したように、上側本体部材(20a)と下側本体部材(20b)とを上下外周フランジ部(28a)(28b)で一体的に結合した状態にて、下側本体部材(20b)における下外周フランジ部(28b)の内方全域がベンチュリー混合管(25)から燃料ガスが供給される空間部として形成される。 Although not shown, the inner side of the upper outer peripheral flange portion (28a) of the upper body member (20a) is squeezed upward, and as described above, the upper body member (20a) and the lower body member ( 20b) is integrally connected with the upper and lower outer peripheral flange portions (28a) (28b), the entire inner area of the lower outer peripheral flange portion (28b) in the lower body member (20b) is the venturi mixing pipe (25). It is formed as a space part to which fuel gas is supplied from.
上火バーナ(20)は、燃焼部(22)にて燃料ガスを燃焼させることによって燃焼状態となり、このとき燃焼部(22)にて生じる燃焼排気は、燃焼部(22)よりも上方へ一段凹んで位置する縦上方絞り部(23a)(23b)内に入り込むと共に、縦上方絞り部(23a)(23b)が排気通路となって、縦上方絞り部(23a)(23b)の下面を後方（図６では上方）へ向かって流れていき、排気筒(31)を通って排気口(30)から外部に排出される。 The upper burner (20) is in a combustion state by burning fuel gas in the combustion section (22), and the combustion exhaust generated in the combustion section (22) at this time is one stage higher than the combustion section (22). The vertical upper diaphragms (23a) and (23b) enter the recessed upper vertical diaphragms (23a) and (23b), and the vertical upper diaphragms (23a) and (23b) serve as exhaust passages. It flows toward the upper side (in FIG. 6, upward), passes through the exhaust pipe (31), and is discharged to the outside through the exhaust port (30).
しかしながら、縦上方絞り部(23a)(23b)の後方には、下方へ絞り下げられている横下方絞り部(2e)が、縦下方絞り部(2a)(2b)(2c)と同一の高さで、後方の排気口側に向かって流れる燃焼排気の流れに対して直交するように設けられているため、縦上方絞り部(23a)(23b)に沿った燃焼排気の流れが横下方絞り部(2e)によって妨げられる。燃焼排気が横下方絞り部(2e)に衝突して拡散されると、その一部が炎孔(27)に干渉したり、燃焼排気の流れが不連続になることで燃焼部(22)に燃焼用空気が供給され難くなり、上火バーナ(20)の燃焼が妨げられるといった問題が生じる。特に、コンパクト化のためにグリルバーナをダウンサイズしていった場合、強度確保のために上下絞り部の絞り深さを深くする必要があることから、上記問題が生じやすい。 However, at the rear of the vertical upper diaphragms (23a) and (23b), the horizontal lower diaphragm (2e), which is lowered downward, has the same height as the vertical lower diaphragms (2a) (2b) (2c). Now, since it is provided so as to be orthogonal to the flow of the combustion exhaust flowing toward the rear exhaust port side, the flow of the combustion exhaust along the vertical upper throttle parts (23a) (23b) Blocked by part (2e). When the combustion exhaust collides with the lateral lower restricting portion (2e) and diffuses, a part of it interferes with the flame hole (27) or the flow of combustion exhaust becomes discontinuous, causing the combustion portion (22) to It becomes difficult to supply the combustion air, and there arises a problem that the combustion of the upper burner (20) is hindered. In particular, when the grill burner is downsized for compactness, the above-mentioned problem is likely to occur because it is necessary to deepen the squeezing depth of the upper and lower squeezing parts in order to ensure strength.
本発明は、上記のような従来技術の問題点を解決するために講じたもので、燃焼排気が排気口へ向かってスムーズに流れ、良好な燃焼が可能なグリルバーナを提供することを課題とする。 The present invention has been made in order to solve the above-described problems of the prior art, and an object of the present invention is to provide a grill burner in which combustion exhaust flows smoothly toward the exhaust port and can perform good combustion. .
上記目的を達成するために講じた本発明は、
後方に燃焼排気を排出させる排気口が形成されたグリル庫の天井部に設置されるグリルバーナであって、
前記グリルバーナは、板金製の上側本体部材と板金製の下側本体部材とを有し、上側本体部材と下側本体部材の上下外周フランジ部を重ね合わせて結合させることにより、前記上下外周フランジ部の内方に燃料ガスが供給される空間が形成され、
前記下側本体部材は、前記下外周フランジ部よりも内側に、前記下外周フランジ部の下面よりも下方へ絞り下げた下方絞り部と、前記下方絞り部の下面よりも上方に絞り上げた上方絞り部とを有し、
前記下方絞り部の下面には、多数の炎孔が形成されており、
前記上方絞り部の下面及びその後方の前記下外周フランジ部の下面は、後方の排気口へ向かう方向に対して直交する突条を有さない連続面で形成されているグリルバーナである。
The present invention taken to achieve the above object
A grill burner installed on the ceiling of the grill cabinet in which an exhaust port for discharging combustion exhaust is formed at the rear,
The grill burner has an upper body member made of sheet metal and a lower body member made of sheet metal, and the upper and lower outer circumferential flange portions are joined by overlapping the upper and lower outer circumferential flange portions of the upper body member and the lower body member. A space for supplying fuel gas is formed inside
The lower body member includes a lower throttle portion that is squeezed down below the lower surface of the lower outer peripheral flange portion, and an upper portion that is squeezed upward from the lower surface of the lower throttle portion, inside the lower outer peripheral flange portion. A diaphragm portion,
A number of flame holes are formed on the lower surface of the lower throttle part,
The lower surface of the upper restricting portion and the lower surface of the lower outer peripheral flange portion behind the upper restricting portion are grill burners that are formed by continuous surfaces that do not have a protrusion perpendicular to the direction toward the rear exhaust port.
上側本体部材と下側本体部材とを上下外周フランジ部で重ね合わせることにより、上下外周フランジ部の内方に、燃料ガスが供給される空間部を有する上火バーナが形成される。
下側本体部材の下外周フランジ部よりも内側には、下方へ凸の下方絞り部と、上方に凸の上方絞り部とが形成され、下方絞り部の下面に多数の炎孔を形成して前記燃料ガスを燃焼させる燃焼部とする。従って、下方絞り部での燃料ガスの燃焼によって生じる燃焼排気は、下方絞り部の下面よりも上方へ一段凹んだ状態にある上方絞り部に流れ込み、さらに上方絞り部内を後方の排気口に向かって流れていく。
このように、上方絞り部の下面は燃焼排気が流れる排気通路として機能すると共に、上方絞り部の下面及びその後方の下外周フランジ部の下面は連続面で形成され、連続面には後方の排気口へ向かう方向に対して直交する突条が設けられていないから、排気口へ向かう燃焼排気の流れが妨げられず、円滑にグリル庫と連通する後方の排気口に流すことができる。
By overlapping the upper body member and the lower body member at the upper and lower outer peripheral flange portions, an upper fire burner having a space portion to which fuel gas is supplied is formed inside the upper and lower outer peripheral flange portions.
On the inner side of the lower outer peripheral flange portion of the lower body member, there are formed a downward restricting portion projecting downward and an upward restricting portion projecting upward, and a plurality of flame holes are formed on the lower surface of the lower restricting portion. A combustion unit for burning the fuel gas is used. Therefore, the combustion exhaust gas generated by the combustion of the fuel gas in the lower throttle portion flows into the upper throttle portion that is in a state of being recessed one step above the lower surface of the lower throttle portion, and further toward the rear exhaust port in the upper throttle portion. It flows.
In this manner, the lower surface of the upper throttle portion functions as an exhaust passage through which combustion exhaust flows, and the lower surface of the upper throttle portion and the lower outer flange portion behind it are formed as a continuous surface, and the rear surface has exhaust gas on the rear side. Since no protrusions perpendicular to the direction toward the opening are provided, the flow of combustion exhaust toward the exhaust opening is not hindered and can flow smoothly to the rear exhaust opening communicating with the grill.
上記グリルバーナにおいて、好ましくは、前記下方絞り部は、後方の排気口へ向かう方向に対して平行な複数の縦絞りリブと、縦絞りリブの前方側で前記複数の縦絞りリブを連続させる１本の横絞りリブとを有し、
前記上方絞り部は、前記複数の縦絞りリブ間に形成されている。
In the grill burner, preferably, the lower throttle portion includes a plurality of vertical throttle ribs that are parallel to a direction toward the rear exhaust port, and a single piece that continuously connects the plurality of vertical throttle ribs on the front side of the vertical throttle rib. With a laterally drawn rib,
The upper diaphragm portion is formed between the plurality of vertical diaphragm ribs.
上記グリルバーナによれば、下方絞り部が、複数の縦絞りリブとこれらを前方側で連続させる１本の横絞りリブとから構成されているから、炎孔はこれら縦横の下方絞りリブの下面に形成される。
上方絞り部は後方の排気口へ向かう方向に対して平行に設けられた複数の縦絞りリブ間に形成されているから、上方絞り部も排気口へ向かって直線的に延在するように形成されている。これにより、上方絞り部内に入り込んだ燃焼排気は、これに連続する排気口側の下外周フランジ部の下面を通って、排気口に向かって直線的に流れていく。
According to the grill burner, the lower throttle portion is composed of a plurality of vertical throttle ribs and one horizontal throttle rib that makes them continuous on the front side, so that the flame holes are formed on the lower surfaces of the vertical and horizontal lower throttle ribs. It is formed.
Since the upper restricting portion is formed between a plurality of vertical restricting ribs provided in parallel to the direction toward the rear exhaust port, the upper restricting portion is also formed to extend linearly toward the exhaust port. Has been. As a result, the combustion exhaust gas that has entered the upper throttle portion flows linearly toward the exhaust port through the lower surface of the lower outer peripheral flange portion on the exhaust port side that is continuous therewith.
以上のように、本発明によれば、下方へ凸の下方絞り部の下面に炎孔が設けられており、燃料ガスを燃焼させたときに生じる燃焼排気は、下方絞り部よりも上方へ一段凹んで位置する上方絞り部に流れ込み、その下面に沿って、グリル庫の後方の排気口に向かって流れていく。このとき、上方絞り部の下面及びその後方の下外周フランジ部の下面は、後方の排気口へ向かう方向に対して直交する突条を有さない連続面に形成され、後方への燃焼排気の流れが邪魔されないから、燃焼排気は、上方絞り部の下面からその後方の外周フランジ部の下面を通って、排気口へスムーズに流れていく。これにより、燃焼排気による炎孔が形成されている領域への干渉が低減されると共に、燃焼用空気の供給が妨げられず、良好な燃焼を得ることができる。 As described above, according to the present invention, the flame hole is provided in the lower surface of the downward restricting portion that protrudes downward, and the combustion exhaust generated when the fuel gas is burned is one step higher than the lower restricting portion. It flows into the upper throttle part located in a recess, and flows along the lower surface toward the exhaust outlet at the rear of the grill. At this time, the lower surface of the upper throttle part and the lower surface of the lower outer peripheral flange part behind the upper throttle part are formed on a continuous surface that does not have a protrusion perpendicular to the direction toward the rear exhaust port. Since the flow is not obstructed, the combustion exhaust gas flows smoothly from the lower surface of the upper restricting portion to the exhaust port through the lower surface of the outer peripheral flange portion behind the upper restricting portion. As a result, the interference with the region where the flame holes due to the combustion exhaust are formed is reduced, and the supply of the combustion air is not hindered and good combustion can be obtained.
また、上方絞り部は熱歪補強用絞り部としても機能するから、下側本体部材の剛性が大きくなり、熱変形を防止することができる。 In addition, since the upper diaphragm portion also functions as a thermal strain reinforcing diaphragm portion, the rigidity of the lower body member is increased, and thermal deformation can be prevented.
なお、下方絞り部を、後方の排気口へ向かう方向に対して平行な複数の縦絞りリブと、これら縦絞りリブの前方側を連続させる１本の横絞りリブとで構成し、上方絞り部の下面とそれより後方の下外周フランジ部の下面とを連続面で構成することにより、燃焼排気を一層スムーズに排気口へ流すことができる。 The lower throttle part is composed of a plurality of vertical throttle ribs parallel to the direction toward the rear exhaust port, and one horizontal throttle rib that continues the front side of these vertical throttle ribs. Combustion exhaust can be made to flow more smoothly to the exhaust port by configuring the lower surface of the lower surface and the lower outer flange portion at the rear thereof as a continuous surface.
さらに、上方絞り部と下方絞り部の絞り深さを、深く設定しておけば、下側本体部材の強度が増し、下方絞り部の後方域に補強のための絞り部等を設けることなく下側本体部材の熱変形を確実に防止することができる。 Further, if the aperture depths of the upper aperture portion and the lower aperture portion are set deep, the strength of the lower body member is increased, and the lower aperture portion is provided without a reinforcing aperture portion or the like in the rear region. Thermal deformation of the side body member can be reliably prevented.
以下に、本発明に係る板金製グリルバーナについて、図１〜図３を参照しながら説明する。
図１は上側本体部材と下側本体部材とを一体化した板金製グリルバーナの底面図であり、図２はそのＸ−Ｘ拡大断面図であり、図３は本発明の板金製グリルバーナをグリル庫内の天井部(33)に取り付けた状態の底面図である。
The sheet metal grill burner according to the present invention will be described below with reference to FIGS.
FIG. 1 is a bottom view of a sheet metal grill burner in which an upper body member and a lower body member are integrated, FIG. 2 is an XX enlarged cross-sectional view thereof, and FIG. 3 shows a sheet metal grill burner according to the present invention. It is a bottom view of the state attached to the ceiling part (33) inside.
本実施の形態のグリルバーナは、図５に示した従来のものと同様なシステムキッチンに組み込まれるドロップインコンロに搭載されている後方排気式のグリル庫の天井部に上火バーナ(10)として設置されるもので、上記した従来の板金製グリルバーナと同様に、上側本体部材(10a)と下側本体部材(10b)とを結合させて構成されている。
なお、本明細書では、グリル庫に上火バーナ(10)を配設したときに、扉と排気口とが対向する方向を前後方向、これに直交する方向を左右方向、高さ方向を上下方向という。
The grill burner of the present embodiment is installed as an upper fire burner (10) on the ceiling of a rear exhaust type grill cabinet mounted on a drop-in stove incorporated in a system kitchen similar to the conventional one shown in FIG. Thus, similar to the above-described conventional sheet metal grill burner, the upper body member (10a) and the lower body member (10b) are combined.
In this specification, when the upper fire burner (10) is disposed in the grill cabinet, the direction in which the door and the exhaust port face each other is the front-rear direction, the direction perpendicular to this is the left-right direction, and the height direction is the up-down direction. It is called direction.
本実施の形態の上側本体部材(10a)は、アルミメッキ鋼板をプレス加工して作製されており、下側本体部材(10b)は、ステンレス板をプレス加工して作製されている。
上側本体部材(10a)及び下側本体部材(10b)は共に、略矩形状体の一方の長辺の一端からベンチュリー混合管(42)が側方に延長する形状に成形されていると共に、外周全域にそれぞれ上下外周フランジ部(12a)(12b)が張り出した形状に成形されている。これら上下外周フランジ部(12a)(12b)を重ね合わせたとき、相互に対応する各位置にネジ孔(13a)とネジ挿通孔(13b)とが形成されている。
The upper body member (10a) of the present embodiment is manufactured by pressing an aluminum-plated steel plate, and the lower body member (10b) is manufactured by pressing a stainless steel plate.
Both the upper body member (10a) and the lower body member (10b) are formed in a shape in which the venturi mixing tube (42) extends laterally from one end of one long side of the substantially rectangular body, and the outer periphery The upper and lower outer peripheral flange portions (12a) and (12b) are formed so as to protrude over the entire area. When these upper and lower outer peripheral flange portions (12a) and (12b) are overlapped, screw holes (13a) and screw insertion holes (13b) are formed at positions corresponding to each other.
また、上側本体部材(10a)の上外周フランジ部(12a)の周縁には、下側本体部材(10b)の周縁にカシメ止めするためのカシメ部(19)が下方へ垂下されており、図２に示すように、カシメ部(19)で、上側本体部材(10a)を下側本体部材(10b)にカシメ止めすることにより、上火バーナ(10)が形成され、この上火バーナ(10)の上下外周フランジ部(12a)(12b)よりも内方に、ベンチュリー混合管(42)から燃料ガスが供給される空間部(40)が形成される。 In addition, a caulking portion (19) for caulking to the peripheral edge of the lower main body member (10b) is suspended downward from the upper peripheral flange portion (12a) of the upper main body member (10a). 2, the upper body burner (10) is formed by fastening the upper body member (10a) to the lower body member (10b) by the crimping portion (19), and this upper fire burner (10 A space (40) to which fuel gas is supplied from the venturi mixing pipe (42) is formed inward of the upper and lower outer peripheral flange portions (12a) and (12b).
上側本体部材(10a)の上外周フランジ部(12a)の内側には、絞り加工により、図２に示されるように、絞り部(14)と、絞り部(14)の剛性を大きくするための複数のリブ状の補強絞り(15)が形成されている。 In order to increase the rigidity of the narrowed portion (14) and the narrowed portion (14), as shown in FIG. 2, on the inner side of the upper outer peripheral flange portion (12a) of the upper body member (10a). A plurality of rib-shaped reinforcing diaphragms (15) are formed.
また、下側本体部材(10b)の下外周フランジ部(12b)の内側には、図１及び図２に示すように、絞り加工により、下方に凸の下方絞り部と、下方絞り部の下面よりも上方に凸の上方絞り部が形成されている。 In addition, as shown in FIGS. 1 and 2, the lower body member (10b) has a lower squeezing portion projecting downward and a lower surface of the lower squeezing portion. A convex upper diaphragm portion is formed above the upper side.
前記下方絞り部は、前記略矩形状体の長辺に平行にリブ状に絞り下げた３本の縦絞りリブ(1a)〜(1c)と、グリル庫の前方側（図１及び図３では下側）に、扉に平行に位置し且つこれら縦絞りリブ(1a)〜(1c)の前方側を相互に連続させる１本の横絞りリブ(1d)とからなり、これら縦絞りリブ(1a)〜(1c)と横絞りリブ(1d)の下面(16)に、多数の炎孔(16a)が形成されて、略「山」の字状の燃焼部(1)を構成している。 The lower restricting portion includes three vertical restricting ribs (1a) to (1c) drawn down in a rib shape parallel to the long side of the substantially rectangular body, and the front side of the grill (in FIGS. 1 and 3). (Lower side) is made up of one horizontal diaphragm rib (1d) which is located in parallel with the door and is continuous with the front sides of the vertical diaphragm ribs (1a) to (1c). ) To (1c) and a lower surface (16) of the lateral throttle rib (1d), a large number of flame holes (16a) are formed to constitute a substantially “mountain” -shaped combustion section (1).
そして、縦絞りリブ(1a)(1b)の間、及び、縦絞りリブ(1b)(1c)との間に、縦絞りリブ(1a)〜(1c)と横絞りリブ(1d)の下面(16)から連続し、下面(16)よりも上方へ絞り上げられた上方絞り部(101a)(101b)がそれぞれ形成されている。 And between the vertical diaphragm ribs (1a) (1b) and between the vertical diaphragm ribs (1b) (1c), the bottom surfaces of the vertical diaphragm ribs (1a) to (1c) and the horizontal diaphragm ribs (1d) ( The upper throttle portions (101a) and (101b) that are continuous from 16) and are squeezed upward from the lower surface (16) are formed.
これら上方絞り部(101a)(101b)の頂面はその下面において、下側本体部材(10b)の下外周フランジ部(12b)の下面と同じ高さに設定されていると共に、上方絞り部(101a)(101b)とこれらの後方の下外周フランジ部(12b)とは、面一となる連続面で形成されている。言い換えれば、上方絞り部(101a)(101b)と、これらより後方の下外周フランジ部(12b)の下面との間には、突条等が形成されない平滑な連続面となっている。 The top surfaces of these upper throttle parts (101a) (101b) are set at the same height as the lower surface of the lower outer peripheral flange part (12b) of the lower body member (10b) on the lower surface thereof, and the upper throttle parts ( 101a) (101b) and the lower outer peripheral flange portion (12b) behind these are formed as a continuous surface that is flush with each other. In other words, a smooth continuous surface is formed between the upper restricting portions (101a) and (101b) and the lower surface of the lower outer peripheral flange portion (12b) behind them so that no protrusions are formed.
上記のような構成を有する上側本体部材(10a)と下側本体部材(10b)の上下外周フランジ部(12a)(12b)を重ね合わせて、カシメ止めすることにより、これらを一体的に結合させ、上火バーナ(10)としての板金製グリルバーナを構成する。そして、図３に示すように、グリル庫の天井部(33)に上火バーナ(10)を載置して、取付ネジ(41)を、下側、すなわち、天井部(33)側から、下側本体部材(10b)のネジ挿通孔(13b)に挿通させると共に、上側本体部材(10a)のネジ孔(13a)に螺合させることにより、天井部(33)に上火バーナ(10)が一体的に取り付けられる。 The upper and lower outer peripheral flange portions (12a) and (12b) of the upper main body member (10a) and the lower main body member (10b) having the above-described configuration are overlapped and fixed by caulking. A sheet metal grill burner is constructed as the upper fire burner (10). Then, as shown in FIG. 3, the upper fire burner (10) is placed on the ceiling part (33) of the grill cabinet, and the mounting screw (41) is placed from the lower side, that is, the ceiling part (33) side. The upper body burner (10) is attached to the ceiling (33) by being inserted into the screw insertion hole (13b) of the lower body member (10b) and screwed into the screw hole (13a) of the upper body member (10a). Are integrally attached.
上記板金製の上火バーナ(10)内の空間部(40)に、ベンチュリー混合管(42)から燃料ガスを供給して燃焼が開始すると、下側本体部材(10b)の下面に形成された炎孔(16a)から燃料ガスが噴出されて燃焼部(1)が燃焼する。燃焼部(1)の燃焼により、下側本体部材(10b)は加熱されるが、燃焼部(1)を構成している縦絞りリブ(1a)〜(1c)の間に形成されている上方絞り部(101a)(101b)が熱歪補強用絞り部として機能することとなって、下側本体部材(10b)の剛性が大きくなり、熱変形を防止することができる。 When combustion is started by supplying fuel gas from the venturi mixing pipe (42) to the space (40) in the above-mentioned sheet metal upper-fire burner (10), it is formed on the lower surface of the lower body member (10b). The fuel gas is ejected from the flame hole (16a), and the combustion section (1) burns. The lower body member (10b) is heated by the combustion of the combustion part (1), but the upper part formed between the vertical throttle ribs (1a) to (1c) constituting the combustion part (1) The throttle portions (101a) and (101b) function as a thermal strain reinforcing throttle portion, the rigidity of the lower body member (10b) is increased, and thermal deformation can be prevented.
また、燃焼部(1)の燃料ガスの燃焼により発生する燃焼排気は、図３の矢印に示すように、燃焼部(1)を構成している縦絞りリブ(1a)〜(1c)及び横絞りリブ(1d)の下面(16)から、それよりも一段上方に位置している上方絞り部(101a)(101b)内へ流れ込み、これら上方絞り部(101a)(101b)内を排気通路として後方の排気口(30)に向かって流れていく。 In addition, the combustion exhaust generated by the combustion of the fuel gas in the combustion section (1), as shown by the arrows in FIG. From the lower surface (16) of the restricting rib (1d), it flows into the upper restricting portions (101a) (101b) located one step higher than that, and the upper restricting portions (101a) (101b) serve as exhaust passages. It flows toward the rear exhaust port (30).
このとき、上方絞り部(101a)(101b)の頂面から後方の下外周フランジ部(12b)に至る範囲は、燃焼排気の流れの方向に対して直交するリブ等の突条が存在しない平滑な連続面となっているから、燃焼部(1)からの燃焼排気は、前記排気通路としての上方絞り部(101a)(101b)から、その後方に連続して位置する下外周フランジ部(12b)の下面を通って、排気口(30)に向かって直線的にスムーズに流れていくこととなり、燃焼排気の流れが妨げられることはない。
従って、上火バーナ(10)のダウンサイズに伴う強度不足を補填するために、上下絞り部の絞り深さを深くした場合でも（例えば、２〜３ｍｍ程度）、後方に流れる燃焼排気に影響を与えないから、燃焼排気の乱れが抑えられ、燃焼排気と炎孔(16a)との干渉が防止でき、また燃焼部(1)へ燃焼用空気を円滑に供給することができる。これにより、上火バーナ(10)の良好な燃焼状態を確保することができる。
At this time, the range from the top surface of the upper throttle portions (101a) and (101b) to the rear lower outer peripheral flange portion (12b) is smooth without ribs or the like perpendicular to the direction of the flow of combustion exhaust. Therefore, the combustion exhaust from the combustion section (1) flows from the upper throttle section (101a) (101b) as the exhaust passage, and the lower outer peripheral flange section (12b) continuously located behind it. ) And smoothly flows linearly toward the exhaust port (30), and the flow of combustion exhaust is not hindered.
Therefore, even if the upper and lower throttle parts are deepened (for example, about 2 to 3 mm) in order to compensate for the strength deficiency associated with the downsizing of the upper fire burner (10), the combustion exhaust flowing backward is affected. Therefore, the disturbance of the combustion exhaust can be suppressed, the interference between the combustion exhaust and the flame hole (16a) can be prevented, and the combustion air can be smoothly supplied to the combustion section (1). Thereby, the favorable combustion state of the upper fire burner (10) can be ensured.
なお、図１に示した例では、上方絞り部(101a)(101b)の頂面の下面と後方に位置する下外周フランジ部(12b)の下面とは面一の連続面に形成することにより、燃焼排気のスムーズな流れを確保しているが、上方絞り部(101a)(101b)から後方の下外周フランジ部(12b)の下面への燃焼排気の流れが妨げられなければ、例えば、図４に示したような、複数の細い補強リブ(18)を排気口(30)に向かう方向と平行に形成してもよい。このような補強リブ(18)を複数本、設けておくことで、後方の下外周フランジ部(12b)が補強され、熱歪に対してさらに高い剛性を確保することができる。 In the example shown in FIG. 1, the lower surface of the top surface of the upper throttle portions (101a) and (101b) and the lower surface of the lower outer peripheral flange portion (12b) located at the rear are formed on the same continuous surface. If a smooth flow of combustion exhaust is ensured, but the flow of combustion exhaust from the upper throttles (101a) (101b) to the lower surface of the rear lower outer peripheral flange (12b) is not hindered, for example, FIG. As shown in FIG. 4, a plurality of thin reinforcing ribs (18) may be formed in parallel to the direction toward the exhaust port (30). By providing a plurality of such reinforcing ribs (18), the rear lower outer peripheral flange portion (12b) is reinforced, and higher rigidity against thermal strain can be secured.
(1) ・・・・・・・・・燃焼部
(10a) ・・・・・・・・上側本体部材
(10b) ・・・・・・・・下側本体部材
(12a) ・・・・・・・・上外周フランジ部
(12b) ・・・・・・・・下上外周フランジ部
(1a)〜(1c)・・・・・・縦絞りリブ（下方絞り部）
(1d)・・・・・・・・・横絞りリブ（下方絞り部）
(101a)(101b)・・・・・上方絞り部
(16)・・・・・・・・・下面
(16a) ・・・・・・・・炎孔
(30)・・・・・・・・・排気口
(1) ・ ・ ・ ・ ・ ・ ・ ・ ・ Combustion section
(10a) ... Upper body member
(10b) ... Lower body member
(12a) ・ ・ ・ ・ ・ ・ ・ ・ Upper outer flange
(12b) ... Lower upper outer flange
(1a) to (1c) ・ ・ ・ ・ ・ ・ Vertical diaphragm rib
(1d) ..... Horizontal throttle rib (lower throttle part)
(101a) (101b) ・ ・ ・ ・ ・ Upper diaphragm
(16) ...
(16a) ... Flame hole
(30) ... Exhaust port
Claims (2)
前記グリルバーナは、板金製の上側本体部材と板金製の下側本体部材とを有し、上側本体部材と下側本体部材の上下外周フランジ部を重ね合わせて結合させることにより、前記上下外周フランジ部の内方に燃料ガスが供給される空間が形成され、
前記下側本体部材は、前記下外周フランジ部よりも内側に、前記下外周フランジ部の下面よりも下方へ絞り下げた下方絞り部と、前記下方絞り部の下面よりも上方に絞り上げた上方絞り部とを有し、
前記下方絞り部の下面には、多数の炎孔が形成されており、
前記上方絞り部の下面及びその後方の前記下外周フランジ部の下面は、後方の排気口へ向かう方向に対して直交する突条を有さない連続面で形成されているグリルバーナ。 A grill burner installed on the ceiling of the grill cabinet in which an exhaust port for discharging combustion exhaust is formed at the rear,
The grill burner has an upper body member made of sheet metal and a lower body member made of sheet metal, and the upper and lower outer circumferential flange portions are joined by overlapping the upper and lower outer circumferential flange portions of the upper body member and the lower body member. A space for supplying fuel gas is formed inside
The lower body member includes a lower throttle portion that is squeezed down below the lower surface of the lower outer peripheral flange portion, and an upper portion that is squeezed upward from the lower surface of the lower throttle portion, inside the lower outer peripheral flange portion. A diaphragm portion,
A number of flame holes are formed on the lower surface of the lower throttle part,
A grill burner in which a lower surface of the upper restricting portion and a lower surface of the lower outer peripheral flange portion behind the upper restricting portion are formed by continuous surfaces that do not have a protrusion perpendicular to the direction toward the rear exhaust port.
前記下方絞り部は、後方の排気口へ向かう方向に対して平行な複数の縦絞りリブと、縦絞りリブの前方側で前記複数の縦絞りリブを連続させる１本の横絞りリブとを有し、
前記上方絞り部は、前記複数の縦絞りリブ間に形成されているグリルバーナ。 The grill burner according to claim 1, wherein
The lower throttle portion has a plurality of vertical throttle ribs parallel to the direction toward the rear exhaust port, and a single horizontal throttle rib that connects the plurality of vertical throttle ribs on the front side of the vertical throttle rib. And
The upper diaphragm portion is a grill burner formed between the plurality of vertical diaphragm ribs.
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| JPS5855289Y2 (en) * | 1979-05-09 | 1983-12-17 | トヨクニ株式会社 | gas burner |
| JPS5822602U (en) * | 1981-08-05 | 1983-02-12 | リンナイ株式会社 | grill equipment |
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| JP2007120884A (en) * | 2005-10-28 | 2007-05-17 | Rinnai Corp | Burner for grill |
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| JP2019045015A (en) * | 2017-08-30 | 2019-03-22 | リンナイ株式会社 | grill |
| JP6990542B2 (en) | 2017-08-30 | 2022-01-12 | リンナイ株式会社 | grill |
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