JPH0252176B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a burner device for a combustor such as a gas stove using an annular burner.

(Prior art) A conventional annular burner is composed of a burner main body and a burner cap placed on the upper surface of the burner body, and has an annular gas chamber inside the burner main body, and a gap around the inner circumference of the burner cap is formed as a secondary air passage. A main flame hole connected to the gas chamber is formed on its outer peripheral surface, and a sub-flame hole connected to the gas chamber is formed between the main flame hole and the gap, and from the gap to the top of the burner cap. A device that guides the ignition flame of an ignition burner and ignites it is known.

(Problem to be Solved by the Invention) However, in the above-mentioned conventional device, the relative positional relationship between the auxiliary flame hole on the top surface of the annular burner and the ignition burner is shifted, so that the ignition flame passes over the auxiliary flame hole. In this case, the ignition flame rises due to the combustion flame ignited and formed in the auxiliary flame hole, and the ignition flame does not reach the outer circumferential surface of the annular burner, resulting in the inconvenience that ignition to the main flame hole becomes defective.

Therefore, the applicant of the present application separately proposed a positioning device for positioning the burner cap so that the auxiliary flame hole is not located on the line in which the ignition flame of the ignition burner extends.

According to this, ignition to the main flame hole becomes good, which is convenient, but in this case, the positioning device is formed by, for example, a recess in the burner body and a projection on the lower surface of the burner cap that engages with the recess. When the burner cap has to be removed from the burner body for cleaning etc., it is necessary to pull the burner cap upward to disengage the concave part and the convex part, but there is no space between them. Since the burner cap is often caked with boiling liquid and the like, it is difficult to remove it, so it is desirable to be able to do this easily and reliably.

(Means for Solving the Problems) The present invention solves the problem of boiling liquid, etc. stuck between the burner cap and the burner body of an annular burner equipped with a positioning device that regulates the relative positional relationship between the auxiliary flame hole and the ignition burner. The purpose of the present invention is to provide a gas burner device in which the burner cap can be easily removed from the burner body even when the burner is in use. A secondary air passage is formed in the inner circumferential gap, and a main flame hole connected to the gas chamber is formed on the outer circumferential surface, and a secondary air passage connected to the gas chamber is formed between the main flame hole and the gap. A flame hole is formed, and the ignition flame of the ignition burner is guided from the gap onto the burner cap for ignition, and the burner is arranged so that the auxiliary flame hole is not located on the line in which the ignition flame of the annular burner extends. In a device that is provided with a positioning device for positioning a cap on the burner body, the positioning device includes an arcuate relief portion formed on either one of the burner body or the burner cap, and an arcuate relief portion formed on the other. and an engaging part that engages with the part, and the length of the arc of the arcuate relief part is longer than the length of the engaging part.

(Function) The present invention has the above-mentioned configuration. According to this, when the burner cap is removed from the burner body for cleaning etc., the length of the arc of the circular relief part is formed to be longer than the length of the engaging part. Therefore, the engaging part can be moved within the arcuate relief part, in other words, the burner cap can be rotated, and during this time there is no space between the burner cap and the burner body, especially between the engaging part and the burner cap. A shearing force is applied to the boiling liquid or the like stuck between the arcuate relief part and the two parts to be easily separated, and the burner cap can be easily removed.

(Example) Next, an example in which the present invention is applied to an annular burner of a gas stove will be described based on the drawings.

In Figures 1 and 3, 1 is the burner body 1
The annular burner 1 has an annular gas chamber 2 therein, and a gap 3 on its inner periphery is used as a secondary air passage. A main flame hole 4 connected to the gas chamber 2 is formed on the outer circumferential surface of the burner cap 1b by the tooth shape on the outer circumference of the lower surface of the burner cap 1b, and on its upper surface (between the main flame hole 4 and the gap 3). A sub-flame hole 5 connected to the gas chamber 2 is formed by small holes in three raised parts of the upper surface of the burner cap 1b, and an ignition burner 7 attached to the gas stove main body 6 is connected to the burner cap 1b from the gap 3. It is ignited by guiding the ignition flame.

In order to properly ignite the main flame hole 4, the auxiliary flame hole 5 is positioned so as not to be located on the line in which the ignition flame of the ignition burner 7 extends.

In the present invention, this positioning device 8 has a circular relief portion 9 formed on either one of the burner body 1a and the burner cap 1b, and an engaging portion formed on the other side that engages with the circular relief portion 9. 10, and the length of the arc of the circular relief portion 9 is longer than the length of the engaging portion.

In the illustrated example, the arcuate relief portion 9 is constituted by an arcuate cutout portion ₉₁ formed in the burner body 1a, and the engaging portion 10 is formed by a projection portion ₁₀₁ formed in one of the teeth 3 of the burner cap 1b. The burner body 1
When the burner cap 1b is placed on the burner cap 1b such that the protrusion ₁₀₁ enters the arcuate notch ₉₁ and the burner cap 1b is rotated, the protrusion ₁₀₁
is secured to one of the ends of the arc-shaped notch 9 ₁ so that the ignition flame of the ignition burner 7 passes between the two sub-flame holes 2 .

When removing the burner cap 1b from the burner main body 1a, rotate the burner cap 1b in the opposite direction to that when placing the burner cap 1b on the burner main body 1a, and then remove the burner cap 1b from the burner main body 1a.
b can be pulled upwards. According to this, a shearing force is applied to the boiling liquid stuck between the burner main body 1a and the burner cap 1b by the relatively large rotational force during rotation, and the two can be easily separated. Since it can be separated, the burner cap 1b can be easily removed.

In FIG. 1, numeral 11 indicates a trivet on the gas stove body 6, and numeral 12 indicates a protrusion for preventing boiling over.

FIG. 4 shows a second embodiment of the present invention, which is particularly different from the first embodiment except that the arcuate escape portion 9 is constituted by an arcuate recess ₉₂ formed in the burner body 1a. It won't happen.

FIG. 5 shows a third embodiment of the present invention, which is the same as that of the first embodiment except that the arcuate escape portion 9 is formed in the burner body 1a by an arcuate recess ₉₃ whose bottom surface is inclined. It's not particularly different.

FIG. 6 shows a fourth embodiment of the present invention, which is similar to the first embodiment except that the arcuate escape portion 9 is formed in the burner body 1a and is composed of an arcuate recess ₉₄ whose bottom surface is chevron-shaped. It's not particularly different.

FIG. 8 shows a fifth embodiment of the present invention, in which an arcuate relief portion 9 is formed by inner end notches ₉₅ of a plurality of adjacent teeth formed in the burner cap 1b, and an engaging portion 10 is formed. Projection 10 formed on burner body 1a
This embodiment is not particularly different from that of the first embodiment except for the point that it is constituted by ₅ .

In the embodiments shown in FIGS. 5 and 6, when the burner cap 1b is removed, when the burner cap 1b is rotated, the protrusion 10 ₃ or the protrusion 10 ₄ is tilted in the recess 9 ₃ or the recess 9 ₄ . Since the bottom surface is raised and the burner cap 1b is pulled up, there is no need to rotate the burner cap 1b and then pull it upward as in other embodiments, making the removal work easier. .

FIG. 8 shows a sixth embodiment of the present invention. In this case, the engaging portion 10 is composed of an L-shaped locking protrusion ₁₀₆ formed on the burner cap 1b, and the arcuate relief portion 9 is formed on the burner cap 1b. The locking protrusion 10 formed on the main body 1a
An engagement hole 9 ₆₁ through which ₆ can be inserted and removed, and an L
The burner cap 1b is configured with a step ₉₆₂ that locks the upper edge of the locking protrusion ₁₀₆ , and the burner cap 1b is connected to the burner body 1.
a so that the locking protrusion ₁₀₆ enters the engagement hole ₉₆₁ , and when the burner cap 1b is rotated and the locking protrusion ₁₀₆ abuts against the stopper 13, the auxiliary flame hole 5 is arranged so that it is not located on the line where the ignition flame of the ignition burner 7 extends. Further, the burner cap 1b is rotated in the opposite direction from the positioned state to apply a shearing force to the boiling liquid stuck between the burner body 1a and the burner cap 1b to easily separate the two, and then again. When the locking protrusion ₁₀₆ is brought to a position facing the engagement hole ₉₆₁ and then the burner cap 1b is pulled upward, the engagement between the locking protrusion ₁₀₆ and the step ₉₆₂ is released, Burner cap 1b can be removed.

In this example, a stopper 14 is provided to facilitate removal of the locking protrusion ₁₀₆ from the engagement hole ₉₆₁ .

FIG. 9 shows a seventh embodiment of the present invention which is a modification of the embodiment shown in FIG. 8, in which a groove ₉₇₂ is formed in place of the step ₉₆₂ in FIG. 8 except that when the locking protrusion ₁₀₇ is placed in the locking hole ₉₇₁ , the auxiliary flame hole 5 is not located on the line in which the ignition flame of the ignition burner 7 extends. It's not particularly different.

FIG. 10 shows an eighth embodiment of the present invention which is a modification of the embodiment shown in FIG. 9, in which two engaging holes ₉₈₁ shown in _FIG . Engagement hole 9
_A concave groove ₉₈₂ is formed to communicate between the burner cap 1b and the burner main body 1a so that the locking protrusion ₁₀₈ enters one of the engagement holes _{981 .} After that, when the burner cap 1b is further rotated and the locking protrusion ₁₀₈ moves from one end of the groove ₉₈₂ to the other end, the auxiliary flame hole 5 is not located on the line where the ignition flame of the ignition burner 7 extends. It is not particularly different from the one shown in Fig. 9 except that it is changed to .

FIG. 11 shows a ninth embodiment of the present invention which is a modification of the embodiment shown in FIG. 9, in which the groove 9 ₇₂ in FIG.
₉₂ and connect the burner cap 1b to the burner body 1.
Fig. ₉ except that the auxiliary flame hole 5 is not located on the line in which the ignition flame of the ignition burner 7 extends when the locking protrusion 109 is placed in the engagement hole ₉₉₁ . It is not particularly different from that of .

(Effects of the Invention) According to the present invention, the positioning device for regulating the relative positional relationship between the auxiliary flame hole and the ignition burner is arranged in an arcuate shape formed on either the burner body or the burner cap. The burner is composed of a relief part and an engaging part formed on the other side and engaged with the arcuate relief part, and the arc length of the arcuate relief part is longer than the length of the engagement part. When the cap is removed from the burner main body, the burner cap is rotated to apply a shearing force to the boiling liquid stuck between the arcuate relief part and the engagement part to easily separate the two. This has the effect of making the removal work easier than when the burner cap is simply pulled upwards.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view showing a first embodiment of the present invention, FIG. 2 is a plan view of the burner cap shown in FIG.
3 is a plan view of the burner body shown in FIG. 1, FIG. 4 is a perspective view showing the main parts of the second embodiment of the present invention, and FIG. 5 is a perspective view showing the main parts of the third embodiment of the invention. Figure, 6th
The figure is a perspective view showing the main part of the fourth embodiment of the present invention, FIG. 7 is a perspective view showing the main part of the fifth embodiment of the invention,
FIG. 8 is a perspective view showing the main parts of the sixth embodiment of the invention, FIG. 9 is a perspective view showing the main parts of the seventh embodiment of the invention, and FIG. 10 is a perspective view of the main parts of the seventh embodiment of the invention. FIG. 11 is an explanatory diagram showing essential parts of a ninth embodiment of the present invention. 1... Annular burner, 1a... Burner body, 1b
...Burner cap, 2...Annular gas chamber, 3...
Gap, 4...Main flame port, 5...Sub-flame hole, 7...Ignition burner, 8...Positioning device, 9...Circular escape portion, 10...Engagement portion.

Claims (1)

[Claims] 1 An annular burner consisting of a burner body and a burner cap placed on the upper surface and having an annular gas chamber inside has a gap on its inner periphery formed as a secondary air passage, and a main air passage connected to the gas chamber on its outer periphery. A flame hole is formed, and an auxiliary flame hole connected to the gas chamber is formed between the main flame hole and the void, and the ignition flame of the ignition burner is guided from the void onto the burner cap for ignition. and further includes a positioning device for positioning the burner cap on the burner main body so that the auxiliary flame hole is not located on the line in which the ignition flame of the annular burner extends, the positioning device being arranged between the burner main body and the burner main body. It consists of an arcuate relief part formed on one side of the cap and an engaging part formed on the other side that engages with the arcuate relief part, and the length of the arc of the arcuate relief part is determined by the length of the arc of the arcuate relief part. A burner device characterized in that it is formed longer than the length of the joint.