JPH03207318A - Gas cooking device - Google Patents

Abstract

PURPOSE:To make it possible to obtain a highly efficient gas cooking device free from inconsistent grilling and excellent in fuel efficiency by connecting a driving device to a supporting device of a lower burner so that the rotating movement of the driving device is transmitted to the supporting device of the lower burner. CONSTITUTION:At a position opposite to a back portion of a heating chamber 15 and an open orifice on the outside, a lower burner 21 comprising an approximately square tube-shaped Bunsen burner is provided. The end of the lower burner is connected with a mixed tube portion 29 connected with an exhaust nozzle 22. On the other hand, other end on the opposite side is connected with the end of a supporting device 24 directly connected with a driving device 23; further, the other end of the device 24 is connected with a braking jig 25. Besides just above the lower burner 21, wind direction control panel 27, which runs parallel to a row of flame orifices 26, is provided in association with the lower burner 21. Moreover, at the back of the lower burner 21 and the wind direction control panel 27, an air blowing device 28 is provided. With such a constitution, favorable cooling result free from inconsistent grilling can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a gas cooker using gaseous fuel such as city gas or liquefied petroleum gas.

BACKGROUND OF THE INVENTION In recent years, energy-saving gas cookers that can evenly grill both sides of food have become mainstream.

Conventionally, this type of gas cooker has generally had the configuration shown in FIGS. 4 and 6. The Ganou grill shown in Figure 3 is
An upper burner 2 with a combustion plate made of a ceramic perforated plate, wire mesh, or punched metal is attached to the ceiling of the heating chamber 1.
There was a double-sided grilling method in which lower burners 6 for forming Bunsen flames were disposed at the left and right lower portions of the food 4 placed on the grill a, and both were used together with the upper burner 2.

In addition, the forced convection opening shown in FIG.
A highly airtight opening/closing door 10 is provided in front of the heating chamber 9.
A circulation fan 11 is provided at the rear of the heating chamber 9, a heating Bunsen burner 12 is provided at the bottom and outside of the heating chamber 9, and an exhaust port 12a is provided at the rear and top of the heating chamber 9.

Problems to be Solved by the Invention However, in the double-sided grilling type gas grill shown in FIG. 3, both upper and lower surfaces of the food to be cooked 4 can be heated and cooked simultaneously by the upper burner 2 and the lower burner 6, respectively. Since the lower burners 6 are located at the lower portions of the left and right sides of the food to be cooked 4, it is difficult for combustion heat from the left and right lower burners 6 to sufficiently reach the center. In particular, as the width of the heating chamber 10 increases, this tendency becomes more serious, and the bottom surface of the object to be cooked 4 has extremely uneven cooking on the left and right (front and back) and center portions, making it impossible to obtain good cooking results.

Further, in the forced convection oven shown in FIG. 4, hot air from a heating Bunsen burner 12 is forcibly circulated inside a heating chamber 9 by a circulation fan 11 to
In order to maintain a uniform heat distribution near the food to be cooked 7, it is necessary to increase the air volume of the circulation fan 11 and the combustion amount of the heating Bunsen burner 12.
Not only does the amount of combustion per volume of the heating chamber 9 need to be about 1.6 to 2 times that of a normal gas grill, but also the airtightness of the opening/closing door 10 is required to ensure safety due to the increased volume of circulating air. The opening/closing door 1o needs to be made of double glass from the front, which has the drawback of increasing costs.

The present invention solves the above-mentioned problems, and aims to provide a high-performance gas cooker that does not cause uneven cooking of food and has good fuel efficiency.

Means for Solving the Problems In order to achieve the above object, the gas cooker of the present invention has the following features:
A radiant heat source is provided above a heating chamber having an opening/closing door, and a lower burner having a support device at one end is provided at the rear of the lower part of the heating chamber, parallel to the row of flame holes of the lower burner and integral with the lower burner. A wind direction control plate is provided, and a blower is provided behind the lower burner and the wind direction control plate, and the blower is connected to a support device for the lower burner so as to transmit the rotational movement of the drive device, and the support device is configured to rotate once. The width can be regulated using a braking jig.

Effect of the Invention With the above-described configuration, the direction of the flame formed in the row of flame holes of the lower burner is controlled by the wind direction control provided in parallel to the row of flame holes of the lower burner. It can be controlled by impinging on the plate and the hot air of the flame can be transported away from the row of flame holes of the lower burner.

Furthermore, a braking jig that regulates the rotation width of the drive device and support device that are directly connected to the lower burner via the support device,
The lower burner is angularly moved for a certain period of time to change the inclination of the flame formed by the row of flame holes, and the inclination of the wind direction control plate provided integrally with the lower burner is also angularly moved in the same manner as described above to blow the rear air. The airflow supplied from the device collides with the wind direction control plate that repeats the above-mentioned angular movement, and the hot air from the flame formed by the row of flame holes is transported not only far away but also nearby. This allows for uniform heating over a wide range.

EXAMPLE Below, an example of the gas cooker of the present invention is shown in Fig. 1~
This will be explained with reference to FIG.

As shown in the figure, the front part of the heating chamber 16 is provided with an opening/closing door 13 made of a glass door, and the upper part of the rear part is provided with an exhaust port 14. The upper part of the heating chamber 16 has a radiant heat source 16 with a combustion plate made of, for example, a ceramic porous plate, and the bottom part of the heating chamber 16 has a saucer 19 on which a grill 18 on which a food to be cooked 17 is placed is installed. . An opening 20 is formed at the rear of the heating chamber 16 at a position between the gridiron 18 and the saucer 19. Heating chamber 15
At a position corresponding to the rear and external opening 20,
Lower burner 21 consisting of a straight tube-shaped Bunsen burner
An end of the lower burner 21 is connected to a mixing pipe section 29 connected to a jet nozzle 22, and the other end on the opposite side is connected to an end of a support device 24 directly connected to a drive device 23. The other end of the support device 24 is connected to a braking jig 26. Further, directly above the lower burner 21, a wind direction control plate 27 is provided integrally with the lower burner 21 in parallel with the flame hole row 26 of the lower burner 21. Further, a blower device 28 is provided behind the lower burner 21 and the wind direction control plate 27.

Note that the mixing pipe section 29 connected to the end of the lower burner 21
A fuel jet nozzle 22 faces one end, and the jet nozzle 22 enters into a hole provided in the center of a ring-shaped jig 3o fitted to the mixing pipe section 29 and is connected thereto. However, the jet nozzle 22 is always located at the center of the mixing pipe section 29. Further, at the other end of the lower burner 21 on the side opposite to the mixing pipe section 29, a rotating shaft 32 provided with a large gear 31 is attached in an extended form.
An end portion of a support device 24 is fixed to 2 so that the lower burner 21 and the support device 24 rotate together.

On the other hand, the drive device 23 equipped with a drive motor that rotates in both directions parallel to the rotating shaft 32 is sb, and the small gear 33 provided at the tip of the drive shaft of the drive device 23 and the large gear 31 engage with each other. The rotational motion of the drive device 230 is transmitted to the rotating shaft 32. The other end of the support device 24 is slidably connected to an elongated guide hole 34 provided in the braking jig 26.

Next, the operation in the above configuration will be explained.

When the lower burner 21 is ignited next to the radiant heat source 16, the blower 28 starts blowing air at the same time as the ignition, and at the same time, the drive device 23 is also energized.

Due to this energization, the rotational motion of the drive device 23 is transmitted from the large gear 31 engaged with the small gear 33 to the rotating shaft 32 attached to the lower burner 21 via the drive shaft. At this time, the rotational motion transmitted to the rotating shaft 32 is transmitted to the supporting device 2.
4 along the guide hole 34 of the braking jig 26, and when the end of the support device 24 reaches one end of the guide hole 34, the rotation direction of the drive motor of the drive device 23 is reversed. However, it is transmitted to the support device 24 through the same transmission path as described above, and the end of the support device 24 moves toward the other end of the guide hole 34 of the braking jig 26. By repeating the above operation, the support device 24 continuously repeats the angular movement from one end of the guide hole 34 to the other. As a result, the lower burner 21, which is integrally connected to the support device 24 through the three rotating shafts, repeats the same angular movement, and the wind direction control plate 27, which is integrally provided to the lower burner 21, repeats the same angular movement. It turns out.

Therefore, the direction of the air flow supplied from the blower 28 is determined along the wind direction control plate 27, and since the wind direction is synchronized with the angular movement of the wind direction control plate 27 and the lower burner 21, the lower burner The thermoelectric power generated by the combustion of the heating chamber 15 can be completely transported from the front to the rear of the heating chamber 15. Therefore, the food 1 placed on the grill 18
Since the lower surface of the cooker 7 can be heated evenly and the upper surface can be heated uniformly from above and below by radiant heat from the radiant heat source 16, good cooking results can be obtained.

In addition, by changing the rotational speed of the drive motor of the drive device 23, the angle change period of the lower burner 21 can be changed, so it is possible to cook various types of food without changing the amount of fuel consumed. Be able to respond.

Effects of the Invention As is clear from the description of the above embodiments, the gas cooker of the present invention has a radiant heat source above the heating chamber, and is supported at one end below the grill provided in the heating chamber and at the rear of the heating chamber. A lower burner having a device is provided, a wind direction control plate is provided parallel to the row of flame holes of the lower burner and integrally with the lower burner, and a blower device is provided at the rear thereof, and a drive device that rotates forward and backward is connected to drive the support device. and regulating the rotation width of the support device with a braking jig, transmitting the rotational movement of the drive device in the forward and reverse directions to the support device,
Further, since the movable range of the support device is determined by the braking jig, the inclination angles of the lower burner and the wind direction control plate can be continuously changed within a predetermined angle.

As a result, the hot airflow formed by the lower burner and the airflow that collides with the wind direction control plate from the blower and flows in can be continuously transported from the vicinity of the lower burner to a far distance, and Uniform heating can be achieved in the lower part. Therefore, the entire object to be cooked can be uniformly heated from above and below with radiant heat from the radiant heat source above the heating chamber, and good cooking results without uneven cooking can be obtained.

In addition, the heating area and heating amount of the underside of the food can be varied depending on the size of the food, so there is no heating loss compared to conventional forced convection, etc. It is possible to provide a gas cooker with low fuel consumption and extremely excellent cooking performance.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a gas cooker showing an embodiment of the present invention, and FIG. 2 is a perspective view showing the positional relationship between the lower burner, drive device, support device, and braking jig of the same cooker. Fig. 3 is an operation explanatory diagram showing the movement of the position showing the operating state of the lower burner, and Fig. 4 is the conventional Fig. 1. 1
6...Radiant heat source, 18...Grilling grid, 2
DESCRIPTION OF SYMBOLS 1... Lower burner, 23... Drive device, 24... Support device, 25... Braking jig, 26... Flame hole Row, 27... Wind direction control board, 28-... Air blower.

Claims (1)

[Claims] A heating chamber having an opening/closing door, a radiant heat source provided above the heating chamber, a grill provided within the heating chamber, and a lower burner having a support device at one end below the grill and at the rear of the heating chamber, A wind direction control plate provided parallel to the flame hole row of the lower burner and integrated with the lower burner, a blower device provided behind the wind direction control plate, a drive device that rotates in forward and reverse directions, and a drive device that rotates in forward and reverse directions; A braking jig for the burner is provided, the drive device and the support device for the lower burner are drivingly connected, and the braking jig regulates the rotation width of the support device that rotates together with the lower burner. Gas cooker.