JP2017138055A - Cooking stove burner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent boiling-over from being infiltrated onto a burner cap, by adhering an outer peripheral cylinder part to a top face of the burner cap in a cooking stove burner comprising an annular burner cap 4 that is mounted on a burner body 3, and an annular burner cover 8 covering the top face of the burner cap while interposing a gap in a vertical direction, the cooking stove burner comprising an outer peripheral cylinder part 9 closing the gap between the burner cap and the burner cover over an entire circumference at an outer peripheral edge of the burner cover.SOLUTION: Fixing pieces 451 are provided at multiple positions in a circumferential direction of a first annular plate 45 that is fixed onto a top face of the burner cap 4, and engaging pieces 821 are provided at multiple positions in a circumferential direction of a second annular plate 82 fixed onto a bottom face of the burner cover 8. A projected part 822 that is expanded upward is formed in each of the engaging piece 821. In a state where at least one of the engaging piece 821 and the fixing piece 451 is elastically deformed in a vertical direction, the engaging piece 821 is overlapped at a lower side of the fixing piece 451 with the projected part 822 interposed therebetween.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a stove burner provided in a gas stove.

  The stove burner includes an annular burner cap that is placed on the burner body, and an annular wall that abuts the other on one of the upper surface outer peripheral portion of the burner body and the lower surface outer peripheral portion of the burner cap. A plurality of blisters are formed in the wall at intervals in the circumferential direction.

  By the way, if the spillage falls to the portion near the outer periphery of the upper surface of the burner cap that is close to the flame opening during combustion, the portion of the burner cap where the spillage has dropped is rapidly cooled, which adversely affects the durability of the burner cap. Therefore, conventionally, a stove burner including an annular burner cover that covers the upper surface of the burner cap with a gap in the vertical direction is also known (see, for example, Patent Document 1).

  However, even in this case, boiled spills falling on the burner cover may wrap around from the outer peripheral edge of the burner cover to the lower surface of the burner cover and fall to the portion near the outer periphery of the upper surface of the burner cap. Therefore, it is not possible to reliably prevent the spilling from falling on the portion near the outer periphery of the upper surface of the burner cap.

  In order to solve such a problem, the applicant of the present application previously described in Japanese Patent Application No. 2014-246002, the gap between the burner cap and the burner cover at least one of the outer peripheral edge portion of the burner cover and the upper surface outer peripheral portion of the burner cap. The thing which provided the outer periphery cylinder part which obstruct | occludes over the perimeter was proposed. According to this, it is possible to prevent the boiled spill falling on the burner cover from flowing from the outer peripheral edge of the burner cover to the lower surface of the burner cover, and the boiled spilled along the lower surface of the burner cover and the outer periphery of the upper surface of the burner cap. It is possible to prevent falling to the side portion.

  Further, in the above-mentioned prior application, a claw portion extending downward is provided on the burner cover so that the burner cover is not displaced on the burner cap, and a concave hole is formed on the upper surface of the burner cap to press the claw portion. ing. However, in this case, due to insufficient press-fitting of the claw portion, the outer peripheral cylindrical portion formed on one of the burner cap and the burner cover does not adhere to the other of the burner cap and the burner cover, and spills through the gap between them. It may invade the burner cap.

JP 2014-77593 A

  In view of the above points, an object of the present invention is to provide a stove burner in which the above-mentioned prior application is improved so that spillage can be reliably prevented from entering the burner cap.

  In order to solve the above-described problems, the present invention includes an annular burner cap that is placed on a burner body, and an annular wall that abuts the other of the upper surface outer periphery of the burner body and the lower surface outer periphery of the burner cap. And a burner cover in which a plurality of flame openings are formed on the annular wall at intervals in the circumferential direction, and the annular burner cover covers the upper surface of the burner cap with a gap in the vertical direction. The outer peripheral cylindrical portion that closes the entire gap between the burner cap and the burner cover is provided on at least one of the outer peripheral edge of the burner cover and the outer peripheral portion of the upper surface of the burner cap. The first annular plate is fixed to the upper surface of the burner, the second annular plate is fixed to the lower surface of the burner cover, the tongue-shaped fixed pieces at the circumferential positions of the first annular plate, and the tongue pieces at the circumferential positions of the second annular plate. Shaped engagement piece One of the engaging piece and the fixed piece is formed with a convex portion that bulges upward when the one is an engaging piece, and downward when the other is a fixed piece, and the engaging piece is fixed. By rotating the burner cover from the state disengaged in one circumferential direction to the other in the circumferential direction, at least one of the engagement piece and the fixed piece is elastically deformed in the vertical direction, the engagement piece is fixed to the fixed piece. It is characterized in that it can be overlapped with a convex part sandwiched below.

  According to the present invention, at least one of the engaging piece and the fixed piece is elastically deformed in the vertical direction by overlapping the engaging piece with the convex portion below the fixed piece, and the elastic deformation reaction force A downward pressing force acts on the burner cover. And the outer peripheral cylinder part formed in one side of a burner cap and a burner cover by this pressing force closely_contact | adheres to the other of a burner cap and a burner cover, and does not produce a clearance gap between both. Therefore, it is possible to reliably prevent the spilling from entering the burner cap through this gap.

  Further, in the present invention, a hole portion in which a part of the convex portion enters when the engaging piece is overlapped below the fixed piece on the other side of the engaging piece and the fixed piece (one that does not form the convex portion). Is preferably formed. According to this, the rotation phase of the burner cover in which the engagement piece is superimposed below the fixed piece is used as the engagement phase, and the burner cover is related to the engagement phase when a part of the convex portion enters the hole. It is possible to prevent the burner cover from being inadvertently rotated from the engagement phase during cleaning or the like.

The perspective view which shows the stove burner of 1st Embodiment of this invention. The cut side view of the stove burner of 1st Embodiment. (A) The perspective view seen from diagonally downward of the burner cover of the cooker of 1st Embodiment, (b) The perspective view seen from diagonally upward of the burner cap of the cooker of embodiment. The expanded sectional view cut | disconnected by the IV-IV line of FIG. The expanded sectional view of the principal part of the stove burner of 2nd Embodiment.

  Referring to FIGS. 1 and 2, TP is a top plate of a gas stove, and the stove burner 1 according to the embodiment of the present invention is arranged facing a burner opening TPa opened on the top plate TP. The stove burner 1 includes a burner body 3 that extends upward from the downstream end of the mixing tube 2 and is inserted into the burner opening TPa, and an annular burner cap 4 that is placed on the burner body 3. The stove burner 1 is provided with a pan bottom temperature sensor 5 projecting upward through the inner circumferential space of the burner cap 4 and an ignition electrode 6 facing the target portion 4a projecting at one location around the burner cap 4. ing.

  The burner body 3 is formed of a hollow ring with an inner cylinder 31 and an outer cylinder 32. An inner bending flange portion 33 is formed at the upper end portion of the outer cylinder 32. Further, a cover ring 7 that covers the burner opening TPa from above is externally inserted into the outer cylinder 32.

  A seal tube portion 41 that is fitted into the upper end portion of the inner tube 31 is suspended from the inner peripheral portion of the burner cap 4. Further, an annular wall 42 is provided on the outer peripheral portion of the lower surface of the burner cap 4 so as to come into contact with the upper surface of the inner bending flange portion 33 of the outer cylinder 32 that is the outer peripheral portion of the upper surface of the burner body 3. A plurality of flame openings 43 each having a groove are formed in the annular wall 42 at intervals in the circumferential direction, and an air-fuel mixture (mixed gas of fuel gas and primary air) from the mixing pipe is formed from these flame openings 43. It blows out and burns. In addition, it is also possible to project an annular wall in contact with the outer peripheral portion of the lower surface of the burner cap 4 on the outer peripheral portion of the upper surface of the burner body 3 to form a flame opening.

  At one place on the lower surface of the burner cap 4, there is provided a projecting portion 44 for phasing that engages with a recess 33 a formed at one place in the circumferential direction of the inner bending flange portion 33. Further, the burner cap 4 is made of an aluminum alloy such as the ADC 12 to reduce the weight.

  By the way, when the spilled portion falls to the upper peripheral portion of the burner cap 4 which is close to the flame opening 43 and becomes hot during combustion, the portion of the burner cap 4 where the spilled portion is dropped is rapidly cooled, and the durability of the burner cap 4 is adversely affected. Reach. Therefore, a burner cover 8 made of an annular plate that covers the upper surface of the burner cap 4 with a gap in the vertical direction is provided to prevent spilling from falling on the upper surface of the burner cap 4. Note that the burner cover 8 is made of stainless steel, giving a sense of quality.

  Here, if only the burner cover 8 is provided, the spilled liquid that has fallen on the burner cover 8 may wrap around from the outer peripheral edge of the burner cover 8 to the lower surface of the burner cover 8, and fall on the outer periphery of the upper surface of the burner cap 4. There is. Therefore, an outer peripheral cylindrical portion 9 extending downward is formed on the outer peripheral edge portion of the burner cover 8, and the outer peripheral cylindrical portion 9 is seated on the outer peripheral portion of the upper surface of the burner cap 4. The outer circumferential cylindrical portion 9 closes the gap. According to this, it is possible to prevent the boiled spill falling on the burner cover 8 from flowing from the outer peripheral edge of the burner cover 8 to the lower surface of the burner cover 8 by the outer peripheral cylindrical portion 9. It is possible to prevent the burner cap 4 from falling to a portion near the outer periphery of the upper surface.

  Further, an inner peripheral cylindrical portion 81 extending downward is also formed on the inner peripheral edge portion of the burner cover 8. This inner peripheral cylinder part 81 is located above the seal cylinder part 41 of the burner cap 4, and the spilled liquid that has fallen onto the burner cover 8 and has flowed to the inner peripheral side passes through the inner cylinder part 81 and is sealed. It falls to the inner periphery of the cylinder part 41.

  By the way, if the burner cover 8 is not pressed downward, the outer peripheral cylindrical portion 9 does not adhere to the upper surface of the burner cap 4, and the spillage is caused by a slight gap generated between the outer peripheral cylindrical portion 9 and the burner cap 4. It will invade on the cap 4.

  Therefore, in the present embodiment, as clearly shown in FIG. 3, the first annular plate 45 is fixed to the upper surface of the burner cap 4, and the second annular plate 82 having a smaller diameter than the first annular plate 45 is disposed on the lower surface of the burner cover 8. Is fixed by spot welding or the like. At three places in the circumferential direction of the first annular plate 45, tongue-like fixing pieces 451 are provided that project inward in the radial direction while being offset slightly upward. In addition, at three locations in the circumferential direction of the second annular plate 82, there are tongue-like engaging pieces 821 that are slightly below the fixed piece 451 and project outward in the radial direction with a slight offset downward. Is provided.

  As clearly shown in FIG. 4, the engaging piece 821 is formed with a convex portion 822 that bulges upward. Then, the engagement piece 821 is elastically deformed downward by rotating the burner cover 8 to the other circumferential direction from the state where the engagement piece 821 is disengaged in one circumferential direction of the fixed piece 451 as indicated by a virtual line in FIG. In this state, the engaging piece 821 is overlapped with the convex portion 822 below the fixed piece 451. In the present embodiment, since the first annular plate 45 is a thick plate, the fixed piece 451 is highly rigid and does not elastically deform in the vertical direction, but the first annular plate 45 is a thin plate and the engaging piece 821 is the fixed piece. The fixing piece 451 may be elastically deformed upward when being overlapped below the 451.

  According to the above configuration, a downward pressing force acts on the burner cover 8 by the elastic deformation reaction force of the engagement piece 821 (when the fixed piece 451 elastically deforms upward, the elastic deformation reaction force of the fixed piece 451). . The pressing force causes the outer cylindrical portion 9 to be in close contact with the upper surface of the burner cap 4, and no gap is generated between the outer peripheral cylindrical portion 9 and the burner cap 4. Therefore, it is possible to reliably prevent the spilling from entering the burner cap 4 through this gap.

  Further, in the present embodiment, the fixed piece 451 is formed with a hole 452 into which a part (upper part) of the convex portion 822 enters when the engaging piece 821 is superimposed below the fixed piece 451. Therefore, with the rotation phase of the burner cover 8 where the engagement piece 821 is superimposed below the fixed piece 541 as an engagement phase, the burner cover 8 is engaged when a part of the convex portion 822 enters the hole 452. Locked to the phase, it is possible to prevent the burner cover 8 from being inadvertently rotated from the engagement phase during cleaning or the like. The hole 452 is formed in a cutout shape, but may be formed in a round hole shape.

  Further, claw portions 453 bent downward are provided at three locations in the circumferential direction removed from the fixing pieces 451 of the first annular plate 45, while claw portions 453 are provided at three locations in the circumferential direction on the upper surface of the burner cap 4. A concave hole 46 having a slightly smaller diameter than the circumferential width is formed. Then, the first annular plate 45 is fixed to the upper surface of the burner cap 4 by press-fitting the claw portion 453 into the concave hole 46. Further, the outer peripheral cylindrical portion 9 is fitted on the first annular plate 451 so that the burner cover 8 is centered with respect to the burner cap 4.

  Next, a second embodiment shown in FIG. 5 will be described. In the second embodiment, an outer peripheral cylindrical portion 9 that closes the gap between the burner cap 4 and the burner cover 8 over the entire circumference is formed on the outer peripheral portion of the upper surface of the burner cap 4. The outer peripheral cylindrical portion 9 is formed with a receiving seat 9a extending inward in the radial direction, which is positioned below the upper end of the burner cover 8 and on which the outer peripheral portion of the lower surface of the burner cover 8 is seated. ing.

  Similarly to the first embodiment, the second embodiment also has a first annular plate 45 fixed to the upper surface of the burner cap 4 and a second annular plate 82 fixed to the lower surface of the burner cover 8. Then, engaging pieces 821 provided at a plurality of locations in the circumferential direction of the second annular plate 82 are overlapped below the fixed pieces 451 provided at a plurality of locations in the circumferential direction of the first annular plate 45 with the convex portions 822 formed thereon sandwiched therebetween. The engagement pieces 821 are elastically deformed downward and the burner cover 8 is brought into close contact with the seat 9a by the reaction force.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above embodiment, the convex portion 822 that bulges upward is formed on the engagement piece 821, but a convex portion that bulges downward may be formed on the fixed piece 451. In this case, a hole portion into which a part (lower portion) of the convex portion enters the engaging piece 821 is formed. Further, the outer peripheral cylinder portion 9 is divided into two upper and lower halves, and the upper half portion of the outer peripheral cylinder portion formed on the outer peripheral edge portion of the burner cover 8 is the lower half of the outer peripheral cylinder portion formed on the upper surface outer peripheral portion of the burner cap 4. You may sit on the club.

DESCRIPTION OF SYMBOLS 1 ... Combustor, 3 ... Burner body, 4 ... Burner cap, 42 ... Annular wall, 43 ... Flame port, 45 ... First annular plate, 451 ... Fixed piece, 452 ... Hole, 8 ... Burner cover, 82 ... No. Two annular plates, 821... Engagement piece, 822... Convex, 9.

Claims (2)

An annular burner cap placed on the burner body is provided, and an annular wall that abuts the other is provided on one of the outer peripheral portion of the upper surface of the burner body and the outer peripheral portion of the lower surface of the burner cap. A stove burner in which a plurality of flame openings are formed at intervals in the direction, and includes an annular burner cover that covers the upper surface of the burner cap with a gap in the vertical direction.
At least one of the outer peripheral edge portion of the burner cover and the upper surface outer peripheral portion of the burner cap is provided with an outer peripheral cylinder portion that closes the gap between the burner cap and the burner cover over the entire circumference,
The first annular plate is fixed to the upper surface of the burner cap, the second annular plate is fixed to the lower surface of the burner cover, the tongue-shaped fixing pieces are provided at a plurality of circumferential positions of the first annular plate, and the circumferential portions of the second annular plate are provided. A tongue-like engagement piece is provided, and one of the engagement piece and the fixed piece has a convex portion that bulges upward when the one is an engagement piece and downward when the one is a fixed piece. When the burner cover is rotated in the other circumferential direction from the state where the engagement piece is disengaged in one circumferential direction of the fixed piece, at least one of the engagement piece and the fixed piece is elastically deformed in the vertical direction. A stove burner characterized in that the engaging piece is overlapped with the convex portion sandwiched below the fixed piece in the state. 2. A hole is formed in the other of the engaging piece and the fixed piece, into which a part of the convex portion enters when the engaging piece is superimposed below the fixed piece. The described stove burner.

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