JP4150034B2 - Stove burner - Google Patents

Description

  The present invention relates to a burner for a stove that is used in a gas stove, and in particular, includes a burner cap that covers a gas distribution chamber that is formed in the burner body and opens upward from above, with a circumferential interval on the upper surface of the burner cap. The present invention relates to a burner for a stove in which a plurality of flame holes are arranged radially, and gas is ejected in a state having a motion component from each flame hole toward one circumferential direction.

  Conventionally, as this type of stove burner, a burner cap is composed of a lower plate member and an upper plate member placed on the lower plate member, and protrusions protruding upward are circumferentially spaced on the lower plate member. The upper plate member is formed with a plurality of radially raised portions that are opposed to each other with a gap in the upper end surface of each protrusion. Each flame hole is formed by a gap between the upper end surface of the ridge and each cut and raised portion, and a communication hole is opened in the lower plate member between the ridges. There is known one in which each communication hole is guided to each flame hole located at one circumferential direction of each communication hole (for example, see Patent Document 1).

Such a burner with a flame hole on the upper surface of the burner cap improves the thermal efficiency, but the simmered juice tends to be applied to the flame hole, and the simmered juice falls into the burner body through the flame hole and the communication hole. There is a problem that maintenance becomes difficult.
Publication of Utility Model Application Publication No. 15448

  In view of the above points, the present invention provides a stove burner that can effectively prevent the falling of boiled juice into the burner body despite having a flame hole on the upper surface of the burner cap. That is the issue.

  In order to solve the above-mentioned problems, the present invention includes a burner cap that covers a gas distribution chamber formed in a burner body from above, and a plurality of flame holes are radially formed on the upper surface of the burner cap at intervals in the circumferential direction. A stove burner that is disposed and has gas components ejected from each flame hole in a state of moving in one circumferential direction, wherein the burner cap is placed on the lower plate member and the lower plate member. A plurality of ridges projecting upward from the lower plate member at a circumferential interval, and the upper plate member has a gap at the upper end surface of each ridge. A plurality of ridges facing each other are formed radially with a circumferential interval, and each flame hole is formed by a gap between the upper end surface of each ridge and each ridge and A communicating hole is opened in the plate member between each protrusion, and the gas in the gas distribution chamber passes through each communicating hole. In each of the communication holes, the recesses are lower than the upper ends of the edge portions of the communication holes on the upper surface of the portion between the communication holes of the lower plate member. Is formed, and this hollow portion exists between each communication hole and each protrusion located in one circumferential direction of each communication hole.

  According to the present invention, even if boiled squeezed juice enters the flame hole, this boiled spilled juice is received by the recess of the lower plate member. Therefore, it is possible to effectively prevent the simmered juice from falling into the burner body from the communication hole. And since the boiled spilled juice collected in the hollow part can be easily removed by removing the upper plate member and cleaning the lower plate member, the maintainability is also improved.

  Further, in the present invention, there is a recess between each communication hole and each protrusion located on the other circumferential side of each communication hole, and each protrusion located on the other circumferential direction of each communication hole It is desirable that the upper plate member is configured to come into contact with one side surface in the circumferential direction at the edge of the cut and raised portion of each cut and raised portion located on the other circumferential side of each communication hole. According to this, the upper plate member is positioned in the circumferential direction by the contact of the edge of the cut and raised mark with the protrusion. And even if boiled spilled juice enters from the contact part between the ridge and the edge of the cut and raised mark, boiled spilled juice is received by the hollow part, and boiled spilled juice falls into the burner body from the communication hole Can be prevented.

  In order to improve the gas sealing performance, an upward stepped portion is formed on one side surface in the circumferential direction of each protrusion, and a portion of the upper plate member near the edge of the cut mark is seated on this stepped portion. It is desirable to make it. Even in this case, there is a possibility that the spilled juice may enter the capillarity through a slight gap generated between the stepped portion and the upper plate member seated on the stepped portion. It is received by the hollow part which exists between each protrusion located in the circumferential direction other side of a communicating hole.

  1 and 2, reference numeral 1 denotes a burner body of a stove burner. A mixing tube 2 is formed integrally with the burner body 1, and an annular gas distribution chamber 3 that opens upward is formed in a portion of the burner body 1 at the tip of the mixing tube 2. A burner cap 4 that covers the gas distribution chamber 3 from above is provided, and a plurality of flame holes 5 are arranged radially on the upper surface of the burner cap 4 at intervals in the circumferential direction. On the other hand, the gas is ejected in a state having a motion component directed in the counterclockwise direction in FIG.

  The burner cap 4 includes an annular lower plate member 6 placed on the burner body 1 and an annular upper plate member 7 placed on the lower plate member 6. The lower plate member 6 is a forged product, and a cylindrical portion 61 is suspended from the inner periphery of the lower plate member 6. Then, the lower plate member 6 is placed in a state of being centered with respect to the burner body 1 by fitting the cylindrical portion 61 into the inner peripheral wall portion of the gas distribution chamber 3. Further, the upper plate member 7 is made of sheet metal, and an inner cylinder portion 71 fitted into the cylinder portion 61 of the lower plate member 6 is formed on the inner periphery of the upper plate member 7, and the outer periphery of the upper plate member 7. In addition, a stepped outer cylindrical portion 72 having a stepped portion 72a seated on a stepped outer peripheral portion of the lower plate member 6 is bent.

  As shown in FIG. 3 and FIG. 4, the lower plate member 6 is provided with a plurality of protrusions 62 protruding radially upward at intervals in the circumferential direction. The upper end surface 62a of each protrusion 62 is formed in the inclined surface which inclines diagonally upward toward one circumferential direction (right side of FIG. 3). Further, as shown in FIG. 3, the upper plate member 7 is inclined obliquely upward toward one side in the circumferential direction, and has a cut-and-raised portion 73 that faces the upper end surface 62 a of each protrusion 62 in parallel with a gap. Are formed radially with a circumferential interval. Thus, each flame hole 5 is formed by a gap between the upper end surface 62 a of each protrusion 62 and each cut and raised portion 73.

  The lower plate member 6 is further provided with a communication hole 63 positioned between the protrusions 62 and 62. Then, the gas in the gas distribution chamber 3 is guided to each flame hole 5 located in one circumferential direction of each communication hole 63 (right side in FIG. 3) through each communication hole 63, and one circumferential direction from each flame hole 5. The gas is ejected obliquely upward toward. Thus, a swirling flame is formed above the burner cap 4, and the object to be heated placed on the virtues on the top plate of the stove is efficiently heated.

  Note that the cut-and-raised portion 73 slightly protrudes from the position directly above one end edge in the circumferential direction of the upper end surface 62a of the protrusion 62 to one side in the circumferential direction. Therefore, it is difficult for the spilled juice to enter the flame hole 5, but the penetration of the spilled juice into the flame hole 5 cannot be completely prevented.

  Therefore, in the present embodiment, a recess 64 that is lower than the upper end of the hole edge of each communication hole 63 is formed on the upper surface of the portion between the communication holes 63, 63 of the lower plate member 6. Each protrusion 62 protrudes from the communication holes 63 and 63 on both sides in the circumferential direction of each recess 64 in the circumferential direction. Thus, the depression 64 exists between each communication hole 63 and each protrusion 62 positioned on one side in the circumferential direction (the right side in FIG. 3), and each communication hole 63 and the other circumferential direction (in FIG. 3). A depression 64 is also present between each protrusion 62 located on the left side.

  Further, an upward stepped portion 62 b is formed on one circumferential side surface of each protrusion 62. And the base end of each cut-and-raised part 73 located in one circumferential direction of each communicating hole 63 and the edge 74 of the cut-and-raised trace of each cut-and-raised part 73 located in the other circumferential direction of each communicating hole 63 The flat portion 75 of the upper plate member 7 extending between the two is seated on the step portion 62b of each protrusion 62 located on the other circumferential side of each communication hole 63 at a portion near the edge 74 of the cut and raised mark. The edge 74 of the cut and raised trace is brought into contact with the rising portion from the stepped portion 62b on one side surface in the circumferential direction of the ridge 62. Thereby, the upper plate member 7 is supported in a state of being positioned in the circumferential direction with respect to the lower plate member 6. Moreover, the base end of each cut-and-raised part 73 is located in the circumferential direction width | variety of the hollow part 64 between each communicating hole 63 and each protrusion 62 located in the circumferential direction one side. The stepped portion 62b is formed at a position higher than the hole edge of the communication hole 63 so that a gap through which gas flows is secured between the hole edge of the communication hole 63 and the flat portion 75 of the upper plate member 7. Has been.

  Here, boiled juice enters from each flame hole 5 formed by a gap between each protrusion 62 located on one circumferential direction of each communication hole 63 and each raised portion 73, or each communication Even if the spilled juice infiltrates due to capillary action from a slight gap formed between the step 62b of each protrusion 62 located on the other circumferential side of the hole 63 and the portion of the upper plate member 7 seated on this, Since the depressions 64 exist between the communication holes 63 and the protrusions 62 located on one side in the circumferential direction and between the communication holes 63 and the protrusions 62 located on the other side in the circumferential direction as described above. The simmered juice is received by the recess 64. Further, even if the boiled sap is invaded through the lower surface of the cut and raised portion 73, the boiled spill is dropped from the base end of the cut and raised portion 73 and is located at one of the communication hole 63 and its circumferential direction. It falls in the hollow part 64 between the ridges 62. Therefore, the simmered juice is prevented from falling into the burner body 1 through the communication hole 63. The boiled sap collected in the depression 64 can be easily removed by removing the upper plate member 7 and cleaning the lower plate member 6, and the maintainability is also improved.

  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 gas distribution chamber 3 is formed in an annular shape, but a non-annular gas distribution chamber may be formed. Moreover, in the said embodiment, although the step part 62b was formed in the circumferential side one side of the protrusion 62, without forming the step part 62, the edge 74 of the cut-up trace of the upper-plate member 7 is used as the protrusion. It is also possible to simply make contact with one circumferential side surface of 62. However, in order to prevent gas leakage from the contact portion between the protrusion 62 and the edge 74 of the cut and raised mark, the flat portion 75 of the upper plate member 7 is seated on the step portion 62b as in the above embodiment. It is desirable to ensure gas sealing properties.

  Moreover, it is also possible to form the protrusion 62 so that the hollow part 64 between the communication hole 63 and the protrusion 62 located in the other circumferential direction may be filled, and to widen the circumferential width of the step part 62b. However, in this case, the spilled juice enters the burner body 1 from the communication hole 63 through a small gap formed between the stepped portion 62b and the flat portion 75 of the upper plate member 7 by capillary action. There is a possibility of falling. Therefore, in order to prevent the boiled juice from falling into the burner body 1 with certainty, it is desirable to configure as in the above embodiment. In the above embodiment, the lower plate member 6 is a forged product. However, it is also possible to use a sheet metal lower plate member obtained by press-molding a metal plate into a shape along the upper surface of the lower plate member 6 of the above embodiment. is there.

The top view of the burner of embodiment of this invention. FIG. 2 is a cut side view of the burner cut along line II-II in FIG. 1. The expanded sectional view of the burner cap part cut | disconnected by the III-III line | wire of FIG. The top view of the state which removed the upper plate member of the burner of embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Burner body, 3 ... Gas distribution chamber, 4 ... Burner cap, 5 ... Flame hole, 6 ... Lower plate member, 62 ... Projection, 62a ... Upper end surface, 62b ... Step part, 63 ... Communication hole, 64 ... Depression Reference numeral 7 denotes an upper plate member, 73 denotes a cut and raised portion, and 74 denotes an edge of the cut and raised mark.

Claims (3)

A burner cap that covers the upwardly opening gas distribution chamber formed in the burner body is provided from above, and a plurality of flame holes are arranged radially on the upper surface of the burner cap with a circumferential interval therebetween. A burner for a stove in which gas is ejected in a state having a motion component toward one direction,
The burner cap is composed of a lower plate member and an upper plate member placed on the lower plate member, and a plurality of protrusions protruding upward are radially provided on the lower plate member with a circumferential interval therebetween. The upper plate member is formed with a plurality of radiating portions facing each other with a gap in the upper end surface of each ridge with a gap in the circumferential direction. Each flame hole is formed by a gap between the bottom and the bottom plate member, and a communication hole is established between each protrusion on the lower plate member, and gas in the gas distribution chamber passes through each communication hole. In what was led to each flame hole located in one circumferential direction,
On the upper surface of the portion between the communication holes of the lower plate member, a recess is formed that is lower than the upper end of the hole edge of each communication hole, and this recess is located in one circumferential direction of each communication hole and each communication hole. A stove burner characterized by existing between each protrusion.   The hollow portion is also present between each communication hole and each protrusion located on the other circumferential side of each communication hole, and one circumferential direction of each protrusion located on the other circumferential direction of each communication hole. 2. The stove burner according to claim 1, wherein the upper plate member abuts against a side surface at an edge of the cut and raised portion of each cut and raised portion located on the other circumferential side of each communication hole.   3. An upward stepped portion is formed on one side surface in the circumferential direction of each protrusion, and a portion of the upper plate member near the edge of the cut-up mark is seated on the stepped portion. Stove burner as described.

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