JP3218503B2 - Burner head manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a burner head mounted on an annular burner body of a burner for a stove.

[0002]

2. Description of the Related Art Some burners for cooking stoves are provided with a pot bottom temperature sensor which abuts on the bottom of the pot to detect its temperature. When the pan bottom temperature sensor is not assembled, the burner head is formed so as to cover the entire burner body including the inner diameter portion of the burner body from above, but when the pan bottom temperature sensor is assembled, the burner head is The pan bottom temperature sensor is formed in a shape having an opening at a portion located above the inner diameter of the burner body so that the pan bottom temperature sensor can protrude above the burner head through the inner diameter of the burner body and the opening. Further, as a burner head of a burner with a pan bottom temperature sensor, there is also a burner head in which a heat shielding cylindrical portion surrounding the pan bottom temperature sensor is protruded on the upper surface in addition to the opening.

Heretofore, these burner heads have been forged or cast using dedicated dies, respectively, and the cost of the dies has considerably increased the manufacturing cost of the burner head.

[0004]

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to reduce the manufacturing cost of a burner head by sharing a mold.

[0005]

Means for Solving the Problems In order to solve the above problems,
According to a first feature of the present invention, a first burner head applied to a burner without a pan bottom temperature sensor, which is formed in a shape that covers the entire burner body including the inner diameter portion of the burner body from above, and a burner body A second burner head applied to a burner with a pan bottom temperature sensor, the second burner head being formed in a shape having an opening through which a pan bottom temperature sensor is inserted in a portion located above the inner diameter of the first burner. The second burner head is manufactured by forging or casting using a mold, and the second burner head is formed by punching the opening in a semi-finished product forged or cast using the first burner head mold. ing.

According to a second feature of the present invention, the first burner head has an opening through which a pan bottom temperature sensor is inserted in a portion located above an inner diameter of the burner body, and a pan bottom temperature is formed on an upper surface. A method of manufacturing a second burner head having a heat shielding cylinder surrounding the sensor, wherein a semi-finished burner head having the cylinder but not having the opening is forged or cast using a mold. Then, the first burner head is manufactured by removing the cylindrical portion of the semi-finished product, and the second burner head is manufactured by drilling the opening in the semi-finished product.

[0007] Regardless of the first and second features, the first
The mold can be shared between the burner head and the second burner head, and the cost of the mold is reduced as compared with the case where a dedicated mold is prepared for each burner head. The burner head is generally made of brass, and the material is soft, so that it is possible to easily perform the drilling of the opening and the removal of the cylindrical portion. Scraps such as blanks and cylinders can be reused as material for burner heads. Therefore, the cost increase due to the perforation and removal of the cylindrical portion is extremely small as compared with the cost reduction due to the common use of the mold, and the manufacturing cost of the burner head is greatly reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a glass top type glass stove, and a protective ring 3 is attached to an opening edge of a window hole 2 opened in the glass top plate 1. ,
The burner 4 faces the protection ring 3.

The burner 4 includes an annular burner body 5 made of brass for supplying a gas from a mixing tube (not shown) mounted on the body of the stove, and a burner head 6 made of brass mounted on the burner body 5. The burner body 5 is projected through the protection ring 3 onto the glass top plate 1.

The burner head 6 has an inner peripheral wall 50 of the burner body 5 at a cylindrical portion 60 protruding from a central region of the lower surface thereof.
Is fitted on the outer periphery of the upper end of the. Also, a number of teeth 61 projecting from the outer peripheral area on the lower surface of the burner head 6 are brought into contact with the upper surface of the outer peripheral wall 51 of the burner body 5 to form a flame hole 62 with tooth spaces between these teeth. A cooking device such as a pot placed at No. 5 is heated by the flame generated outside the flame hole 62.

The burner head 6 of the burner 4 shown in FIG. 1A is formed so as to cover the entire burner body 5 including the inner diameter portion 52 of the burner body 5 from above. FIG.
(B) A pan bottom temperature sensor 7 is attached to the burner 4 shown in FIG. The burner head 6 of the burner 4 shown in FIG. 1B is formed in a shape having an opening 63 in a portion located above the inner diameter portion 52 of the burner body 5, and the inner diameter portion 52 of the burner body 5 is formed. The pan bottom temperature sensor 7 protrudes above the burner head 6 through the opening 63.
The burner head 6 shown in FIG. 1 (C) is formed in a shape having a heat shielding cylindrical portion 64 surrounding the pan bottom temperature sensor 7 on the upper surface in addition to the opening 63.

The burner head 6 shown in FIG. 1A and the burner head 6 shown in FIG.
When the burner head 6 of FIG. 1 is manufactured, a mold 8 including an upper mold 8a and a lower mold 8b shown in FIG.
After forging or casting the molded product for the burner head 6 of (A), the burr 6a is removed to produce the burner head 6 of FIG. The burr 6a of the product is removed, and as shown in FIG. 2 (B), an opening 63 is formed by punching, cutting, or the like.
The burner head 6 of (B) is manufactured.

The mold 8 is provided with an inner diameter 5 of the burner body 5.
The portion 65 of the burner head 6 located above the second portion 2 is formed so as to be thin. In manufacturing the burner head 6 shown in FIG. 1B, an opening 63 is formed in the thin portion 65, and the boring process is facilitated.

The burner head 6 shown in FIG. 1A and the burner head 6 shown in FIG.
When manufacturing the burner head 6 of FIG.
Using a mold 9 composed of an upper mold 9a and a lower mold 9b shown in FIG. 1A, forging a semi-finished product 6 'having a cylindrical portion 64 of the burner head 6 shown in FIG. Or cast. The mold 9 is formed so that the portion 65 of the semi-finished product 6 ′ located above the inner diameter of the burner body 5 is thin.

Next, the burr 6a of the semi-finished product 6 'is removed, and the cylindrical portion 64 is removed by cutting or the like as shown in FIG. 3 (B) to manufacture the burner head 6 of FIG. 1 (A). Semi-finished product 6
An opening 63 is formed in the thin portion 65 of FIG. 3 by punching or cutting as shown in FIG. 3 (C) to manufacture the burner head 6 of FIG. 1 (C).

[0016]

As is apparent from the above description, according to the present invention, a die for forging or casting is formed by a burner head of a burner without a pan bottom temperature sensor and a burner head of a burner with a pan bottom temperature sensor. It can be shared, and the manufacturing cost of the burner head can be reduced by saving the mold cost.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing various burners having various burner heads manufactured by the method of the present invention.

2A is a sectional view of a mold used for manufacturing the burner head shown in FIGS. 1A and 1B, and FIG. 2B is a view showing a process of processing the burner head shown in FIG. 1B.

3A is a sectional view of a mold used for manufacturing the burner head shown in FIGS. 1A and 1C, and FIG. 3B is a view showing a process of manufacturing the burner head shown in FIG. 1A. (C) A view showing a processing step of the burner head of FIG. 1 (C).

[Explanation of symbols]

 5 Burner body 52 Inner diameter part 6 Burner head 63 Opening part 64 Cylindrical part 8, 9 Mold

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F23D 14/06

Claims (2)

(57) [Claims] 1. A method for producing first and second types of burner heads mounted on an annular burner body of a stove burner, wherein the first burner head has an inner diameter of the burner body. The second burner head is formed in a shape that covers the entire burner body including the portion from above, and the second burner head has a shape that has an opening through which a pan bottom temperature sensor is inserted in a portion located above the inner diameter portion of the burner body. In the first aspect, the first burner head is forged or cast using a mold, and the second burner head is formed by drilling the opening in a semi-finished product forged or cast using the first burner head mold. And manufacturing the burner head. 2. A method of manufacturing first and second types of burner heads mounted on an annular burner body of a stove burner, wherein the first burner head has an inner diameter of the burner body. The second burner head has an opening through which a pan bottom temperature sensor is inserted in a portion located above the inner diameter of the burner body, and has a pan bottom temperature on the upper surface. A semi-finished product of the burner head having the cylindrical portion but not having the opening is forged or cast using a mold, wherein the semi-finished product is formed in a shape having a heat shielding cylindrical portion surrounding the sensor. A method for manufacturing a burner head, comprising: manufacturing a first burner head by removing a cylindrical portion; and manufacturing a second burner head by forming an opening in a semi-finished product.