JPH08261415A - Burner for cooking stove - Google Patents

Abstract

PURPOSE: To increase the quantity of heat generated by a burner without lowering the efficiency of heating. CONSTITUTION: In a burner wherein a burner head 7 is fitted removably in an opening part 3 provided in one end of a mixing tube 1 and a burner port 11 is formed in the peripheral parts of the oppsite parts of the opening part 3 and the burner head 7, the burner head 7 is formed of a heat-resistant metal plate of a relatively large thickness. Concurrently, an upper burner head 12 formed of a heat-resistant metal plate of a relatively large thickness is superposed on the burner head 7 so that a burner port 15 is formed in the periphery of the opposite parts of the upper burner head 12 and the burner head 7, and a pass hole 17 for supplying gas between the burner head 7 and the upper burner head 12 is bored in an appropriate place of the burner head 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved structure of a burner for a stove mainly used for a gas stove, a gas table and the like.

[0002]

2. Description of the Related Art In a burner for a stove used for a gas stove or the like, a burner cap 7 formed by forging in an opening of a cast iron burner body 6 constituting a mixing tube is disclosed in, for example, JP-A-4-214107. To form a flame port between the burner cap and the opening.

[0003]

On the other hand, when increasing the heat generation amount of the burner, a small burner called a sub-burner is arranged in the center of the burner or the burner diameter is increased to increase the flame hole area. , But in this case,
A dedicated gas passage for supplying gas to the child burner is required, and the gas passage becomes complicated, and if the diameter of the flame hole becomes large, the combustion flame will contact only the outer part of the pot etc. and the thermal efficiency will drop significantly. There is a problem of doing.

Therefore, the present invention aims to increase the heat generation amount of the burner without lowering the heating efficiency.

[0005]

According to the present invention, a burner head is removably fitted in an opening provided at one end of a mixing tube, and a flame hole is formed in an outer peripheral portion of a portion where the opening and the burner head face each other. In this case, the burner head is formed of a relatively thick heat-resistant metal plate, and the upper burner head formed of a relatively thick heat-resistant metal plate is superposed on the burner head, and the upper burner head and A flame hole is formed on the outer periphery of the facing portion of the burner head, and a passage hole for supplying gas between the upper burner head and the burner head is bored at an appropriate position.

Further, according to the present invention, a ventilation hole is formed substantially at the center of the opening of the mixing tube, and a cylindrical portion detachably fitted in the ventilation hole is integrally bent at the substantially center of the burner head. In addition, an inner cylindrical portion that is detachably fitted in the cylindrical portion of the burner head is integrally bent and formed in a substantially central portion of the upper burner head.

Further, according to the present invention, an inner flame hole is formed in a proper place on the upper surface of the upper burner head, a through hole is formed inside the position of the inner flame hole, and the inner flame hole is directed inward. It is characterized by being formed by cutting and raising.

Further, according to the present invention, a plurality of tooth-shaped projections are provided at intervals in the flame hole forming portions of the burner head and the upper burner head, and the burners are arranged so that the positions of these projections are offset by a half pitch and overlap. Positioning means for fitting the head and the upper burner head are provided.

[0009]

According to the present invention, since the burner head and the upper burner head are made of a heat-resistant metal plate, the cost can be reduced by forming the sheet metal by punching and bending, and the diameter of the burner head can be widened. The heat generation amount can be increased without any increase, and the heating efficiency can be improved.

Further, according to the present invention, the burner head is detachably fitted into the opening of the mixing tube by the cylindrical portion provided in the central portion thereof, and the upper burner head is detachably fitted into the burner head by the inner cylindrical portion thereof. By doing so, the burner head and the upper burner head can be securely fixed, and combustion failure due to movement can be prevented.

Further, according to the present invention, the through hole is formed inside the inner flame hole formed on the upper surface of the upper burner head, so that the broth and the like that has penetrated from the inner flame hole falls into the opening through the through hole. Prevents clogging of the gas passage between the upper burner head and the burner head.

Further, according to the present invention, since the inner flame hole of the upper burner head is formed by cutting and raising the inner flame hole toward the inner side, infiltration of broth or the like from the inner flame hole can be prevented.

Further, according to the present invention, the tooth-shaped projections projecting from the burner head and the upper burner head are overlapped with each other by a half-pitch shift so that the upper burner head and the upper burner head are overlapped with each other. Prevent the occurrence of incomplete combustion such as red fire combustion due to insufficient supply of secondary air.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of the present invention will be described with reference to FIG. 1. Reference numeral 1 is a casting mixing pipe, which has a ring-shaped opening 3 communicating with an internal gas passage 2 at the tip thereof. A cylindrical vent hole 4 is opened at a substantially central portion of the opening, and an inflow port 6 facing a gas nozzle 5 for ejecting fuel gas is opened at a rear end thereof.

Reference numeral 7 is a burner head detachably fitted in the opening 3 of the mixing tube 1 and formed of, for example, a stainless steel plate having a thickness of 2.0 mm. The burner head 7 is fitted into the ventilation hole 4 at a substantially central portion. The cylindrical tubular portion 8 is bent by press working, and as shown in FIG. 2, a plurality of tooth-shaped protrusions projecting toward the opening are formed on the outer peripheral portion of the portion facing the opening 3. The projections 9, 9 ... Of the projections 9 are projected at a predetermined interval by half-pushing seat push processing, and the tips of these projections are brought into contact with the opening surface 10 located on the outer periphery of the opening 3, thereby A main flame hole 11 is formed between them.

Reference numeral 12 denotes an upper burner head which is removably superposed on the upper surface of the burner head 7, and is formed of a stainless steel plate having a thickness of 2.0 mm like the burner head 7.
An inner cylindrical portion 13 that fits inside the cylindrical portion 8 of the burner head 7 is integrally bent and formed substantially at the center portion.
As shown in FIG. 2, a plurality of tooth-shaped projections 14, 14 ... Protruding toward the burner head are provided on the outer peripheral portion of the portion facing the burner head 7 by half blanking at predetermined intervals. Then, the tips of these protrusions are brought into contact with the upper surface of the burner head 7 to form the auxiliary flame hole 15 between the upper surface and the upper surface.

On the other hand, the upper burner head 7 has inner flame holes 16, 16 ... Perforated toward the inner side thereof, and is located inside the inner flame holes 16, 16 ,. A plurality of passage holes 17 connected to the auxiliary flame hole 15
・ ・ Perforated

The above burner head 7 and the upper burner head 1
2 is configured such that the projections 9, 9, ..., 14, 14 ... Have the same pitch, and when they are overlapped, they are positioned so that their positions are displaced from each other by half a pitch. For example, a positioning means is provided which includes a protrusion 18 protruding from the upper burner head 12 and a notch 19 formed in the burner head 7 so that the protrusion 18 is engaged.

FIGS. 4 and 5 show another embodiment of the inner flame holes 16 formed in the upper burner head 12. The inner flame holes 16 are opened inward by press working or the like. The cut-and-raised parts 20 are formed, and the cut-and-raised parts prevent clogging of the inner burner holes 16 ...

The burner head 6 is detachably mounted in the opening 3 by inserting the cylindrical portion 8 into the ventilation hole 4 of the mixing tube 1, and the upper burner head 12 has the protrusion 18 in the notch 1.
By fitting the inner cylinder portion 13 into the cylinder portion 8 of the burner head 7 while engaging the inside of the burner head 9, it is detachably mounted on the burner head 6.

By ejecting the fuel gas into the gas passage 2 from the gas nozzle 5, the fuel gas mixes with the air sucked from the inflow port 6 and passes through the opening 3, and a part of the mixed gas is projected. , 9 ···, and is ejected from the main flame hole 11 and a part of the mixed gas is ejected from the auxiliary flame hole 15 after passing through the passage holes 17 ··· and the rear protrusions 14, 14 ···. A part of it is ejected from the inner flame hole 16.

Then, the gas ejected from the main flame hole 11, the auxiliary flame hole 15, and the inner flame hole 16 ... Is ignited by an appropriate means to form a combustion flame and burn them.

Although the upper burner head 12 is removably superposed on the burner head 7 in the above embodiment, they may be integrated by spot welding or the like.

[0024]

According to the structure of the present invention, since the burner head and the upper burner head are made of heat-resistant metal plates, the burner head can be formed by relatively inexpensive press working, and the head diameter can be increased. The amount of heat generation can be increased without increasing the size, and the heating efficiency when heating a pot or the like can be improved.

Further, according to the present invention, the burner head is detachably fitted into the opening of the mixing tube by the tubular portion provided in the central portion thereof, and the upper burner head is detachably fitted into the burner head by the inner tubular portion thereof. Thus, the burner head and the upper burner head can be securely fixed to the mixing tube and the burner head, and their movement due to vibration or the like generated during cooking can be prevented.

Further, according to the present invention, an internal flame hole is formed on the upper surface of the upper burner head, and gas is supplied between the burner head and the upper burner head, the gas being located inside the internal flame hole of the burner head. By piercing the passage hole, the simmered juice from the internal flame hole falls into the opening through the passage hole, the gas passage between the upper burner head and the burner head is blocked, and the simmered juice to the joint of these heads, etc. To prevent sticking due to infiltration of

Further, according to the present invention, the inner flame hole of the upper burner head is formed by cutting and raising the inner flame hole toward the inner side, so that the inflow of broth and the like from the inner flame hole is prevented, and the inner flame hole and the upper burner head due to the penetration. It is possible to prevent clogging of the gas passage between the burner head and the burner head.

Further, according to the present invention, a positioning means is provided between the burner head and the upper burner head for determining the fitting position of the burner head and the tooth-shaped projections projecting from the flame holes so as to overlap each other by a half pitch. With this configuration, the combustion flame formed on the lower side of the upper burner head is located above the combustion flame formed on the lower side of the burner head. It is possible to prevent the occurrence of incomplete combustion such as red fire combustion due to insufficient supply of secondary air.

[Brief description of drawings]

FIG. 1 is a side vertical sectional view showing an embodiment according to the present invention.

FIG. 2 is a plan view showing a burner head according to the present invention.

FIG. 3 is a plan view showing an upper burner head of the same.

FIG. 4 is a side elevational sectional view showing another embodiment of the present invention.

FIG. 5 is a plan view showing another embodiment of the present invention.

[Explanation of Codes] 1 Mixing tube 3 Opening 4 Vent hole 7 Burner head 8 Cylinder part 9 Protrusion 11 Main flame hole 12 Upper burner head 13 Inner cylinder part 14 Protrusion 15 Secondary flame hole 16 Inner flame hole 18 Protrusion part 17 Passing hole 19 Notch 20 Cut and raised part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshifumi Ozaki 3-201 Minamiyoshikata, Tottori-shi, Tottori Santo Electric Co., Ltd. (72) Kaoru Takeda 3-201 Minamiyoshikata, Tottori-shi, Tottori Sanyo Denki Within the corporation

Claims (5)

[Claims] 1. A burner head is removably fitted into an opening provided at one end of a mixing tube, and a flame hole is formed in an outer peripheral portion of a facing portion of the opening and the burner head. The burner head is formed of a comparatively thick heat-resistant metal plate, and the upper burner head formed of a comparatively thick heat-resistant metal plate is superposed on the burner head. A burner for a stove, characterized in that a flame hole is formed on the outer periphery of the burner head, and a through hole for supplying gas is bored between the burner head and the upper burner head. 2. A ventilation hole is formed in a substantially central portion of the opening of the mixing tube, and a cylindrical portion detachably fitted in the ventilation hole is integrally bent and formed in a substantially central portion of the burner head. ,
The burner for a stove according to claim 1, wherein an inner cylindrical portion that is detachably fitted into the cylindrical portion of the burner head is integrally bent at approximately the center of the upper burner head. . 3. The inner burner hole is bored in an appropriate place on the upper surface of the upper burner head, and the passage hole is bored inside the bored position of the inner burner hole. Burner for the stove. 4. The burner for a stove according to claim 3, wherein the inner flame hole is formed by cutting and raising it toward the inside. 5. The burner head and the upper burner head are provided with a plurality of tooth-shaped projections projecting at intervals in the flame hole forming portions, and the burner heads are arranged so that the positions of these projections are offset by a half pitch and overlap each other. The burner for a stove according to claim 1, further comprising a positioning means for fitting the upper burner head and the upper burner head.