JP2002306349A - Grill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grill which is equipped with a whole primary air type burner to burn an object on a burning plate made of ceramic and can obtain sufficient lighting effect in the grill chamber. SOLUTION: Metallic fine wires 13 as a lighting member are heated red by flames formed on the surface of the burning plate when the grill burner is burning and irradiate red light by radiation to light up materials to be cooked F. In a grill 1 like this, a metallic fine wire 13 with thin diameter is used as a lighting member to make heat capacity extremely low and stretched in the close vicinity of the burning surface. Thus the fine wire is sufficiently heated red by flames of the whole primary air type burner so as to obtain lighting effect sufficient for visually recognize the inside of the grill chamber 16 through an inspection window.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grill capable of illuminating the inside of a grill storage.

[0002]

2. Description of the Related Art Conventionally, grills for heating fish and the like in a grill storage have been proposed which include an illumination device for illuminating the interior of the grill storage. For example, JP-A-11-1557
No. 40 discloses that a ceramic bar 113 is provided as a lighting member at a flame forming position of a Bunsen-type grill burner 102 as shown in FIG. In this grill, the flame of the grill burner 102 causes the ceramic bar 113 to glow to about 1000 to 1100 ° C., and emits red light due to temperature radiation as shown in FIG. Therefore, illumination inside the grill storage can be performed without using a power source, and the cooking state such as the color of the grill can be confirmed from the viewing window without opening the grill door.

[0003]

By the way, recently,
2. Description of the Related Art Grills of a type in which combustion exhaust gas is temporarily confined in a grill storage, and an object to be cooked is heated and cooked with high-temperature hot air generated by the retention of the combustion exhaust gas have become widespread. In such grills, all-primary-air burners that burn surface on ceramic combustion plates are particularly suitable because they do not require secondary air in the grill cabinet. However, the flame temperature of all primary air type burners is lower than that of Bunsen type burners, etc.
There is a problem that the ceramic rod attached as described above is not sufficiently red-hot, and the amount of light required to illuminate the inside of the grill storage cannot be obtained. The grill of the present invention solves the above problems, and also in a grill provided with an all-primary air burner that performs surface combustion on a ceramic combustion plate,
An object of the present invention is to obtain a sufficient lighting effect in a grill storage.

[0004]

According to a first aspect of the present invention, there is provided a grill, comprising: an all-primary-air burner which burns a surface on a ceramic combustion plate; In a grill provided with a viewing window for checking the state, a thin metal wire is stretched in front of the combustion surface of the combustion plate, and the thin metal wire is heated by a flame formed on the combustion plate and glows red. The gist is to illuminate the inside of the grill storage.

[0005] Further, the grill according to claim 2 of the present invention,
The grill according to claim 1, wherein the thin metal wire is
The gist is that it is stretched in a lattice shape in front of the combustion surface of the combustion plate.

A grill according to a third aspect of the present invention includes:
The grill according to claim 1, wherein the thin metal wire is
The gist of the invention is that the combustion plate is zigzagged in front of the combustion surface of the combustion plate in a zigzag manner at predetermined intervals with a plurality of meanders.

The grill according to claim 4 of the present invention,
The grill according to any one of claims 1 to 3, wherein a hook piece for stretching the thin metal wire is integrally formed on a burner mounting plate for mounting the burner in the grill storage. Make a summary.

Further, the grill according to claim 5 of the present invention,
The gist according to any one of claims 1 to 4, wherein the thin metal wire is a metal wire for electric heating.

In the grill according to the first aspect of the present invention having the above structure, a thin metal wire having a very small heat capacity is stretched in front of the combustion surface of the all-primary-air burner whose surface is burned on a ceramic combustion plate. Therefore, the thin metal wire is satisfactorily glowed red by the flame formed on the combustion plate to generate red light due to the temperature radiation, so that the object to be cooked in the grill storage can be illuminated.

The grill according to claim 2 or 3 of the present invention has a zigzag shape in which fine metal wires meander a plurality of times in a lattice shape or a plurality of times at predetermined intervals in front of the combustion surface of the combustion plate. By extending, the light emitting area is enlarged,
Since the whole can be efficiently heated, the lighting can be brightened.

Further, the grill according to claim 4 of the present invention,
By integrally forming the hook pieces for extending the thin metal wires to the burner mounting plate, the thin metal wires can be easily stretched while setting a good separation between the thin metal wires and the combustion plate. In addition, since there is no need to separately manufacture a member for stretching the thin metal wire, it can be implemented at low cost.

Further, the grill according to claim 5 of the present invention,
By using a metal wire for electric heating, which has very good thermal conductivity, as a thin metal wire, the lighting can be brightened.In addition, the metal wire for electric heating has a high heat transfer speed, so it is quickly glowed red and has a sufficient lighting effect. The time to obtain it can be shortened.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, a preferred embodiment of a grill of the present invention will be described below with reference to FIGS.

As shown in FIGS. 2 and 3, the grill burner 2 includes a hollow burner main body 3 and a ceramic combustion plate 4 provided with a large number of flame ports mounted on the burner main body 3. The flame outlet is actually a combustion plate 4
Are formed over the entire surface, but the flame port at the intermediate portion of the combustion plate 4 is omitted in the figure. FIG. 3 is a cross-sectional view taken along one-dot chain line AA in FIG. Burner body 3
Has a rectangular hollow portion 5 in which the combustion plate 4 is mounted.
And a mixing pipe 6 for mixing the fuel gas and the primary air
Is formed at the base end of the mixing pipe 6, and an inlet hole 7 through which fuel gas and primary air are sucked is opened. In the grill burner 2, the primary air and the fuel gas sucked from the suction holes 7 are mixed well in the mixing pipe 6, and the air-fuel mixture blows out from the flame port of the combustion plate 4, and the surface combustion on the combustion plate 4 is performed. I do.

As shown in FIG. 4, the grill burner 2 is overlapped with a burner mounting plate 8 (described later) by a flange portion 26 provided around the hollow portion 5 to form a burner assembly. In this burner assembly, the burner is inserted into an insertion hole 28 opened in a side wall 27 of the grill housing 16 from outside the grill housing 16 so as to expose the combustion surface of the combustion plate 4 into the grill housing 16 and fixed with screws 29. It is a configuration that is installed.

Next, the burner mounting plate 8 is shown in FIGS.
This will be described with reference to FIG. FIG. 6 is a sectional view taken along dashed line BB in FIG. The burner mounting plate 8 includes the combustion plate 4
A fitting hole 9 for fitting the upper surface of the frame is opened, and a frame plate 10 is formed by bending around the hole. As shown in FIG. 7, a plurality of protrusions 11 are provided on the frame 10 in the longitudinal direction of the fitting hole 9.
Are provided side by side. FIG. 7 is a view of the frame 10 in the longitudinal direction of the fitting hole 9 in FIG. The frame plate 10 is provided with a plurality of inwardly bent stop plates 12 in the middle of the arrangement of the protrusions 11. This stop plate 12
Is for determining a limit position at which the combustion plate 4 projects into the fitting frame 9. That is, the combustion plate 4
It does not protrude outside this stop plate 12. The projection 11 has a thin wire-shaped electric heating metal wire 13 (for example, trade name of Silver Steel Machine Co., Ltd. S) as a lighting member.
ILVER No. 30 (Material: Cr; 23 to 26%,
Al; 4 to 6%, Fe; remaining amount, diameter: 0.32 m
m)) is hooked and attached. Here, a method of attaching the electric heating metal wire 13 (hereinafter, referred to as a thin metal wire 13) will be described with reference to FIG. First, one end of the thin metal wire 13 is wound several times around a starting claw 14 provided on the burner mounting plate 8 to be connected. Next, the thin metal wires 13 are hooked on the protrusions 11 of the frame plate 10 in the order of the numbers shown in FIG. The installation is completed by connecting the wires. In this case, the stop plate 12 is located at the position X where the thin metal wire is hooked on the projection 11.
4 (preferably about 1 to 2 mm) below the metal thin wire 1 as shown in FIG.
3 can be easily stretched very close to the combustion surface of the combustion plate 4 without contact. Moreover, the distance between the surface of the combustion plate 4 and the fine metal wire 13 can be accurately positioned.

Next, the grill 1 provided with the grill burner 2 will be described. FIG. 1 is a sectional explanatory view of the grill 1 as viewed from the side. A grill 17 on which an object to be cooked F such as fish is placed is provided in a middle stage in the grill storage 16, and a pan 18 which can be slid out toward the front while the grill 17 is placed is provided in a lower stage, respectively. On the front of the grill storage 16,
A grill door 19 is provided which opens and closes in conjunction with the drawer / storing operation of the tray 18. A viewing window 20 is formed in the center of the grill door 19 with a transparent glass. You can check the status. At the back of the grill storage 16, an exhaust chamber 23 is provided in parallel with the grill storage 16 via a partition wall 21, and has an exhaust port 22 opened upward. The partition wall 21 includes the grill storage 16 and the exhaust chamber 23. The communication port 24 for communicating with the
7 is provided at a position lower than the object F to be cooked.
The thin metal wire 1 is located above the left and right side surfaces of the grill storage 16.
3 is provided with a grill burner 2 having its combustion plate 4
Is provided facing the combustion surface of the grill 16. still,
The grill top plate 25 serving as the ceiling of the grill storage 16 is formed in a V-shape when viewed from the front, and the center is lowered.

In the grill 1 having the above-described structure, when an ignition operation is performed, fuel gas is ejected from a gas nozzle (not shown) to the mixing pipe 6 of the burner main body 3 through a suction hole 7.
All the primary air necessary for combustion is taken in from the suction hole 7 with the ejection. Thus, the fuel gas mixed with the primary air in the mixing pipe 6 is ejected from the hollow portion 5 of the burner main body 3 to the front surface of the combustion plate 4 through the flame opening of the combustion plate 4, and is ignited by an ignition electrode (not shown). , Surface combustion on the combustion plate 4.

When the combustion starts, the high-temperature combustion exhaust gas temporarily accumulates in the upper portion of the grill chamber 16 and overflows into the lower communication port 24 to flow into the exhaust chamber 23.
3 and is discharged to the outside through the exhaust port 22. Therefore, the object to be cooked F is heated by the high-temperature combustion exhaust gas accumulated in the upper part of the grill chamber 16, so that heat energy can be effectively used, gas consumption is small, and energy is saved. Further, the heating of the cooking object F placed in the central portion, which is far from the grill burner 2 and receives little heat due to radiant heat, is supplemented by the convection of the combustion gas, and the entire cooking object F is more uniformly burned. In addition, since the grill top plate 25 is formed in a V-shape, the combustion gas can be more effectively collected at the central portion and can be heated more uniformly.

When the grill burner 2 burns, the thin metal wire 13 is glowed red by the flame formed on the surface of the combustion plate 4, and emits red light due to temperature radiation to illuminate the cooking object F. Therefore, the cooking state can be easily checked from the viewing window 20 of the grill door 19. In such a grill 1, the heat capacity is extremely reduced by using a thin metal wire 13 having a small diameter as a lighting member, and the flame temperature is low by being extended in the vicinity of the combustion surface. Even with the flame of the all-primary pneumatic burner, the thin metal wires 13 are sufficiently glowing red, and a sufficient lighting effect can be obtained so that the inside of the grill chamber 16 can be visually recognized through the viewing window 20.
Furthermore, since the metal thin wire 13 is a metal wire for electric heating, it has a very good thermal conductivity, so that the lighting can be brightened. The time required for obtaining is short. Moreover, the metal wire 13 has a simple structure in which the metal wire 13 is simply stretched in front of the combustion surface, and the metal wire 13 is easier to handle and process than the easily broken ceramic rod which is a conventional lighting member. The production cost can be reduced without complicating the process of manufacturing such a grill 1.

Further, the protrusion 11 for extending the thin metal wire 13 is integrally formed on the burner mounting plate 8 for mounting and fixing the grill burner 2, so that the separation between the thin metal wire 13 and the combustion plate 4 can be set well. While the fine metal wire 1
3 can be easily installed. According to the test results, a good illuminance can be obtained particularly when the distance is set to 1 to 2 mm. Further, since the thin metal wire 13 is deformable, the thin metal wire 13 can be freely laid out and stretched in front of the combustion plate 4 by hooking on the projection 11. In addition, since there is no need to separately manufacture a member for stretching, it can be implemented at low cost. Further, by extending the thin metal wires 13 in a lattice shape in front of the combustion plate 4, it is possible to increase the light emitting area and brighten the illumination.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention. is there. For example, in the present embodiment, the thin metal wires 13 are stretched in a lattice shape in front of the combustion surface of the combustion plate 4, but as shown in FIG.
It may meander a plurality of times at predetermined intervals and stretch in a zigzag shape. In short, the thin metal wire only needs to be stretched in front of the combustion surface of the combustion plate 4. Also,
The thin metal wire 13 is not limited to one wire, and may be formed by twisting a plurality of wires, or a plurality of thin metal rods, not limited to wires, may be stretched. Further, the extension range is not limited to the above-described embodiment, and may be extended to a plurality of ranges or to the entire combustion surface as long as combustion is not affected. The thin metal wire 13 does not have to be used for electric heating, and may be any thin metal wire that can be glowed red.

[0023]

As described in detail above, claim 1 of the present invention
According to the grill described, the heat capacity is made extremely small by using a thin metal wire having a small diameter as a lighting member, and is stretched very close to the combustion surface, so that surface combustion is performed on a ceramic combustion plate. Even in the case of the all-primary-air burner in which the flame temperature is low, the glow can be satisfactorily glowed to obtain a sufficient lighting effect. In addition, since the thin metal wire is easier to process than, for example, a conventional ceramic lighting member that is easily broken, the process of manufacturing such a grill is not complicated, and the production cost can be reduced.

Further, according to the grill according to the second or third aspect of the present invention, since the light emitting area can be increased, the illumination can be made bright and the visibility in the grill storage can be improved.

Further, according to the grill according to the fourth aspect of the present invention, by forming integrally with the catch piece for extending the thin metal wire to the burner mounting plate, the separation between the thin metal wire and the combustion plate can be improved. While setting, the thin metal wire can be easily stretched. In addition, since there is no need to separately manufacture a member for stretching the thin metal wire, it can be implemented at low cost.

Further, according to the grill according to the fifth aspect of the present invention, by using a metal wire for electric heating having a very good thermal conductivity as the thin metal wire, it is possible to brighten the lighting, Since the metal wire for use has a high heat transfer speed, the time until a sufficient lighting effect is obtained can be shortened, and the usability is improved.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view of a grill as an embodiment viewed from a side.

FIG. 2 is a front view of a grill burner.

FIG. 3 is a sectional view of the grill burner as viewed from above.

FIG. 4 is an explanatory sectional view showing how to attach a burner assembly to a grill storage.

FIG. 5 is a front view of a burner mounting plate.

FIG. 6 is a cross-sectional view of the burner mounting plate as viewed from the side.

FIG. 7 is an enlarged view of a part of the burner mounting plate.

FIG. 8 is an explanatory cross-sectional view of a grill as another embodiment viewed from the side.

FIG. 9 is an explanatory diagram showing an illumination state of a grill as a conventional example.

[Description of Signs] 2 ... Grill burner, 3 ... Burner body, 4 ... Burning plate, 13 ... Fine metal wire, 16 ... Grill storage, 20 ... Viewing window,
F… Cooking object.

Claims (5)

[Claims] 1. A grill provided with an all-primary pneumatic burner for surface burning on a ceramic combustion plate and a viewing window for checking the inside of the grill storage during cooking, wherein the combustion of the combustion plate Stretch a thin metal wire in front of the surface,
A grill for illuminating the inside of a grill cabinet by irradiating the thin metal wire with a flame formed on the combustion plate and causing it to glow red. 2. The grill according to claim 1, wherein the thin metal wires are stretched in a lattice shape in front of a combustion surface of the combustion plate. 3. The grill according to claim 1, wherein the thin metal wire is zigzagly stretched in front of a combustion surface of the combustion plate by zigzagging a plurality of times at predetermined intervals. 4. A burner mounting plate for mounting the burner in the grill storage, and a hook piece for extending the thin metal wire is integrally formed with the burner mounting plate.
A grill according to any one of the preceding claims. 5. The grill according to claim 1, wherein the thin metal wire is a metal wire for electric heating.