JP2898263B2 - Gas stove and gas cock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas stove and a gas cock, and more particularly to a business gas stove used in a commercial kitchen and the like and a gas cock used therefor.

[0002]

2. Description of the Related Art Commercial gas stoves used in commercial kitchens such as general cafeterias, hotels, restaurants, catering, snack cafes, cooking rooms of hospitals, schools, offices and factories, etc.
A large amount of gas is used per unit time, and therefore a large amount of air for adjusting the gas flame is also required.

An example of a commercial gas stove and a gas cock used therein will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a perspective view of a commercial gas stove, and FIG. 3 is an enlarged perspective view of a conventional gas cock. A gas burner 1 having a flame port 1a is housed in a stove body 2, and a gas and air intake port 1b thereof is arranged outside the stove body 2. The nozzle end of the gas cock 3 having a diameter smaller than that of the gas and air intake 1b is inserted into the gas and air intake 1b, and is fixed at a predetermined position so as not to move or come off in normal use. As shown in FIG. 3, the gas cock 3 includes a rubber pipe opening 3a, an instrument plug 3b,
The air amount adjusting section 4 is composed of a flat nut 4a and a nozzle tip 4b. The amount of air for obtaining the appropriate flame is adjusted by rotating the flat nut 4a forward and backward in the nozzle tip direction.

[0004]

However, in the conventional gas stove for business use, a large amount of air is required. Therefore, the amount of air is adjusted by the flat nut 4a. Even if the amount is too large, there is a problem that the air is excessive or insufficient and the appropriate rotation range is extremely narrow. For this reason, there was a problem that it was difficult to set the amount of air for obtaining an appropriate flame of the commercial gas stove.

[0005] The present invention has been made to address such a problem, and an object of the present invention is to provide a gas stove and a gas cock in which the amount of air for obtaining an appropriate flame can be easily set.

[0006]

A gas stove according to the present invention accommodates a gas burner having a flame port in a stove body, and has a gas and air intake port of the gas burner having a diameter smaller than that of the gas and air intake port. A gas stove in which a nozzle tip of a gas cock having an air amount adjusting portion is inserted and fixed at a predetermined position, wherein the air amount adjusting portion has a diameter smaller than a diameter of an air intake, and It is a nut having at least a cylindrical body or a columnar body having a diameter larger than the distal end on the air intake side.

[0007] A gas cock according to the present invention is a gas cock which is used in a gas stove in which a gas burner is housed in a stove body, and which has an air amount adjusting portion at a nozzle tip portion,
The air amount adjusting unit is a nut having a diameter smaller than the gas and air intakes of the gas burner and at least a cylindrical body or a columnar body having a diameter larger than the nozzle tip on the air intake side. And

The present inventor has found that the rotation range of the nut 4a for obtaining an appropriate flame can be widened by using the flat nut 4a in the gas cock with the above-described structure. The present invention has been made based on such knowledge, and the gas stove of the present invention can easily set the amount of air for obtaining an appropriate flame. Here, the appropriate flame is a flame generated when the flow rate of the unburned gas and the combustion velocity of the air-fuel mixture are balanced, and an inner flame called a reducing flame emitting a strong blue color and an outer flame called an oxidizing flame formed outside the flame. A flame that has a distinct flame.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a gas stove and a gas cock according to the present invention will be described with reference to FIG. FIG. 1 is a perspective view of the gas cock of the present invention. The gas stove of the present invention is such that such a gas cock is fixed to a gas burner 1 housed in a stove body 2 shown in FIG.

[0010] The gas cock 3 of the present invention comprises a rubber port 3a,
The device plug 3b and the air amount adjusting unit 5
Is a nut 5 provided with a cylindrical or columnar body 5c.
a and a nozzle tip 5b. In the present invention, the nut 5a can take various forms such as a flat plate or a tapered shape, but is preferably a flat plate that can have a wide range of air volume adjustment. The cylindrical body or the columnar body 5c and the plate-shaped nut 5a may be formed as an integral body, or may have a structure in which the cylindrical body or the columnar body 5c is bonded to the plate-shaped nut 5a.

The cylindrical or columnar body 5c has a smaller diameter than the air intake 1b and a larger diameter than the nozzle tip 5b. With such a diameter, the air amount can be easily adjusted. Although the reason is not clear, by providing the cylindrical member or the columnar member 5c on the nut 5a, especially the plate-like nut, the laminar flow to the mixing air flowing between the air intake port 1b and the cylindrical member or the columnar member 5c is provided. It is considered that the state easily occurs, and the range in which the flow rate of the unburned gas and the combustion velocity of the air-fuel mixture are balanced is widened.

The cylindrical body or columnar body 5c is a cylinder or column,
It may be a polygonal cylinder or a polygonal column. A more preferable structure is preferably a concentric cylinder in which a laminar flow state is easily generated in the mixing air. In addition, the concentric cylinder is lightweight and easy to handle. Further, the cylindrical body or the columnar body 5c may have a taper. The diameter of the flat nut 5a is larger than the diameter of the air intake port 1b, and it is preferable to provide irregularities around the nut 5a in order to facilitate rotation.

The overall size of the air amount adjusting section 5 in the gas cock 3 varies depending on the size and performance of the gas stove, but any size may be used without limitation as long as the mixing air is likely to generate a laminar flow state. Can be.

Since the gas stove of the present invention has the gas cock having the above-described structure, it is possible to easily obtain an appropriate flame by replacing only the gas cock with the gas burner 1 and the stove body 2 having the conventional structure. For example,
In the case of the conventional flat nut 5a alone, in the same gas stove, the range for obtaining the appropriate flame is about 1 mm before and after, and in the present invention, it is 6 mm or more before and after.
It was easy to adjust the amount of air, which was difficult in a commercial gas stove.

The gas stove of the present invention can be suitably used for both liquefied petroleum gas and city gas. In addition, it is used in installation forms such as a tabletop type that is used by placing it on a stove stand, a cooking table, etc., a stationary type that is used by mounting it on a table or floor, or a cabinet type that is used by mounting it on a dedicated cabinet. be able to. As the gas burner according to the present invention, a rod burner, a ring burner, a Tsukushi burner, or the like can be used. As a method for ignition, a method using a pilot burner or an ignition rod can be adopted. Further, the gas cock according to the present invention can be suitably used in a gas stove having one or two or more gas and air intake ports 1b. It is particularly suitable for a commercial gas stove with a large amount of mixed air.

[0016]

According to the gas stove of the present invention, the air regulating portion of the gas cock has a diameter smaller than the diameter of the air intake port and a cylindrical or columnar body having a diameter larger than the tip of the nozzle. , The amount of air for obtaining an appropriate flame can be easily set.

Since the gas cock of the present invention is a nut in which a cylindrical body or a columnar body is combined, an appropriate rotation range for obtaining an appropriate flame of the gas stove can be extremely widened.

[Brief description of the drawings]

FIG. 1 is a perspective view of a gas cock according to the present invention.

FIG. 2 is a perspective view of a commercial gas stove.

FIG. 3 is an enlarged perspective view of a conventional gas cock.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas burner 2 Stove body 3 Gas cock 4 Air amount adjustment part 5 Air amount adjustment part

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F24C 3/02 F23D 14/04-14/06 F23D 11/04

Claims (2)

(57) [Claims] 1. A gas burner having a flame outlet is housed in a stove body, and gas and air intakes of the gas burner are provided in a stove body.
A gas stove having a diameter smaller than the diameter of the gas and air intake ports, and having a nozzle end of a gas cock having an air amount adjusting portion inserted and fixed at a predetermined position, wherein the air amount adjusting portion is A gas stove characterized in that the gas stove is a nut having at least a cylindrical body or a columnar body having a diameter smaller than the diameter of the air intake port and larger than the tip of the nozzle on the air intake side. 2. A gas cock provided with an air amount adjusting part at a nozzle tip used for a gas stove in which a gas burner is housed in a stove body, wherein the air amount adjusting part is a gas and air intake of a gas burner. A gas cock characterized in that it is a nut having a cylindrical body or a columnar body having a diameter smaller than the diameter of the nozzle and having a diameter larger than the tip of the nozzle on the air intake side.