JPH033770Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention mainly relates to a gas burner for a cooking stove.

(Prior art) Conventionally, as this type of burner, for example,
As seen in Publication No. 175332 or Japanese Patent Application Laid-open No. 47-44329, a burner main body has a secondary air passage in the center and an annular gas distribution chamber around the outer periphery, and an opening at the upper end of the gas distribution chamber, It is known that a burner top is detachably provided to form a group of inner flame holes facing inward of the burner top and a group of outer flame holes facing outside of the burner top.

(Problem to be solved by the invention) However, the former burner top consists of a cover plate-like member that closes the upper opening of the distribution chamber, and the inner flame hole group and the outer flame hole group are formed on this by drilling or other means. It is made in the shape of a through-hole, and its manufacture is relatively troublesome, and cleaning of each through-hole part is particularly troublesome. The inner flame hole group and the outer flame hole group are formed by providing a slit-like groove extending obliquely upward and communicating with the inner surface and the outer surface,
There are surfaces in three different directions: the inner flame hole group, the outer flame hole group, and the lower part of the lid body, which makes the structure complicated and difficult to clean, and the inner flame hole group and the outer flame hole group have distributed chambers. Since there is no means for distributing the gas supplied from the gas, there are problems such as the distribution, that is, the size of the inner flame and the outer flame, becoming unstable. The object of the present invention is to obtain a gas burner free of such defects.

(Means for Solving the Problems) In order to achieve the above object, the present invention combines a burner body with a secondary air passage in the center and an annular gas distribution chamber around the outer periphery of the secondary air passage. A burner top is detachably provided in the upper opening, and an inner flame hole group facing inward of the burner top and an outer flame hole group facing outside the burner top are formed between the burner body and the burner top. The burner top is configured by arranging a plurality of tooth profiles protruding in the diametrical direction on the inner and outer circumferential surfaces of a cylindrical body, leaving at least a portion without tooth profiles in the lower part of the cylindrical body, and It is inserted into the upper opening of the distribution chamber, and the inner flame hole group and the outer flame hole group are formed between the opening side wall and the tooth profile.

(Example) An example of implementing the present invention will be explained with reference to the attached drawings.
In the drawings, reference numeral 1 indicates a burner body, and the burner body 1 has a secondary air passage 2 in the center and an annular gas distribution chamber 3 opening at the top on the outer periphery. A set of four inner flame holes facing the inside of the burner top 5 and a group of four outer flame holes facing the outside of the burner top 5 are formed between the burner body 1 and the burner top 5 so as to be detachable.

To explain this, the burner top 5 has a plurality of teeth 6 protruding in the diametrical direction on the inner and outer circumferential surfaces of the cylindrical body 7, as shown in FIGS. 3 to 5, for example. The burner top 5 is configured by leaving a portion 7b without the tooth profile 6.
was inserted into the upper opening of the distribution chamber 3 to form the four groups of inner flame holes and the four groups of outer flame holes between the side walls 3a of the upper opening of the burner body 1 and each tooth profile 6. To further explain this in detail, the distribution chamber 3 of the burner top 5
As is clear from FIG. 1, the insertion into the upper surface opening is such that the upper part of the tooth profile 6 protrudes from the opening, and the length of the protrusion is as shown by B in the drawing. It is preferable to provide a portion 7a without the tooth profile 6 also in the upper part of the cylindrical body 7, the protruding length of which is as shown by A in the drawing, and such a portion 7a.
It is advantageous to provide the above-mentioned four groups of inner flame holes and four groups of outer flame holes because interference between the inner flame and the outer flame generated by the inner flame hole 4 group and the outer flame hole 4 group can be prevented.

(Function) In the gas burner thus obtained, the flames obtained in the four groups of inner flame holes and the four groups of outer flame holes are obtained vertically in a straight line, as shown in FIG. In order to rectify the gas flow guided to the 4 groups of inner flame holes and the 4 groups of outer flame holes by the portion 7b without the toothed shape 6 at the lower part of 7, and to appropriately divide the gas flow into both 4 groups of flame holes, The flame generated in the 4th hole group and the 4th outer flame hole group is stabilized as a whole, and the gas supplied from the distribution chamber is distributed to the inner flame hole group and the outer flame hole group, that is, the size of the inner flame and the outer flame is adjusted. It can be easily stabilized.

(Effects of the invention) As described above, according to the invention, the flame is obtained as a whole in a straight line in the vertical direction with double inner and outer sides, and the inner flame hole group is formed by the lower part of the cylindrical body and the tooth-free part. Since the gas flow led to the outer flame hole group is rectified and properly divided into both the four flame hole groups, the flame generated in the inner flame hole group 4 and the outer flame hole group 4 is stabilized as a whole, and the flame generated in the inner flame hole group 4 and the outer flame hole group 4 are stabilized as a whole. The gas supplied from the distribution chamber can be easily distributed between the flame hole group and the outer flame hole group, that is, the size of the inner flame and the outer flame can be stabilized, and the object to be heated facing above the flame can be easily distributed. It can be heated well, and the burner top has a simple shape in which a plurality of tooth profiles protruding in the diametrical direction are arranged on the inner and outer peripheral surfaces of the cylindrical body, leaving at least a portion without the tooth profiles in the lower part of the cylindrical body. Moreover, when the burner top is taken out from the upper opening of the distribution chamber, the space between the teeth is exposed, so the burner top is easy to clean, and it is easy to manufacture and can be obtained at low cost.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of one example of the burner of the present invention;
3 is a plan view of the burner top, FIG. 4 is a sectional view taken along the line 5, FIG. 5 is a perspective view, and FIG. 6 is a sectional side view of the burner top in its operating state. 1...Burner body, 2...Secondary air passage, 3...
...Distribution chamber, 4...Internal and external flame holes, 5...Burna top, 6...Tooth profile, 7...Cylindrical body, 7b...Part.

Claims (1)

[Claims for Utility Model Registration] 1. A burner main body having a secondary air passage in the center and an annular gas distribution chamber around its outer periphery, with a burner top removably provided in the upper opening of the gas distribution chamber; In the case where an inner flame hole group facing the inside of the burner top and an outer flame hole group facing the outside of the burner top are formed between the main body and the burner top, the burner top is attached to the inner and outer peripheral surfaces of the cylindrical body. A plurality of tooth shapes projecting in the diametrical direction are arranged leaving at least a portion without tooth shapes in the lower part of the cylindrical body, and the burner top is inserted into the upper opening of the distribution chamber. A gas burner comprising the inner flame hole group and the outer flame hole group formed between the side wall and the tooth profile. 2. The gas burner according to claim 1, wherein the burner top protrudes upward from the distribution chamber at the toothed portion. 3. Utility model registration claim 1 or 2, in which a plurality of tooth profiles protruding in the diametrical direction are provided on the inner and outer circumferential surfaces of the cylindrical body, leaving a portion without the tooth profiles in the upper part of the cylindrical body. Gas burner according to item 2.