JP5409297B2 - Stove burner - Google Patents

Description

  The present invention relates to a stove burner.

  Conventionally, a stove burner including a burner body and a disc-like burner head provided on the burner body is known (for example, see Patent Document 1 below). The burner body includes a bottom portion and an outer peripheral wall provided on an outer peripheral edge thereof, and a plurality of flame mouth forming grooves are formed at an upper end portion of the outer peripheral wall. The bottom of the burner body has a central portion communicating with the mixing pipe, and a mixed gas in which fuel gas and primary air are mixed is supplied from the mixing pipe to the inside of the burner body.

  The burner head is placed on the outer peripheral wall of the burner head so as to cover the flame forming groove at the upper end of the outer peripheral wall to form a flame outlet, and to cover the upper part of the burner body and the outer peripheral wall and the bottom. A distribution chamber is formed by a space surrounded by each other. The mixed gas supplied from the mixing tube to the burner body passes through the distribution chambers, travels to each flame port, and blows out from each flame port to form a flame.

  In this way, by providing the flame mouth forming groove on the outer peripheral wall of the burner body, it is only necessary to form the periphery of the burner head flat, and the configuration of the burner head can be simplified. Can be made inexpensively by using a metal plate.

By the way, the burner head is detachably provided from the burner body so as to facilitate maintenance work such as cleaning of the burner body . However, if the burner head is merely placed on the burner body, the burner head is liable to be displaced with respect to the burner body. Therefore, in the conventional apparatus, a plurality of pins are provided upright on the burner body, and the burner head is fixed to the burner body by engaging the burner head with the pins. In other words, a locking edge is provided along the periphery of the burner head to lock the head of the pin whose diameter has been expanded, and a notch through which the head of the pin can pass is provided at a part of the locking edge. Is provided. When attaching the burner head to the burner body, first, the head of the pin is passed through the notch of the burner head so that the burner head is placed on the burner body, and then the burner head is rotated to rotate the pin. The head of this is locked to the locking edge of the burner head.

JP-T-2006-526126

  However, in the above-mentioned conventional one, when attaching the burner head to the burner body, it is necessary to align the pin and the notch, and further, it is necessary to rotate the burner head. It takes time.

  Further, in the state where the alignment between the head of the pin and the notch is insufficient, the burner head cannot be securely attached to the burner body even if the burner head is rotated. In this case, a gap is generated between the upper end of the outer cylinder portion of the burner body and the peripheral edge of the burner head, so that a flame opening cannot be formed, and good combustion cannot be obtained.

  In view of the above-described disadvantages, the present invention can reliably prevent the position of the burner head from being displaced on the burner body, and can easily attach the burner head onto the burner body. The purpose is to provide.

The present invention relates to a burner body that forms a mixed gas distribution chamber by a circular bottom and a cylindrical outer peripheral wall continuous to the periphery of the bottom, and a disc-shaped burner head that detachably covers the distribution chamber And a plurality of flame openings are formed by covering the outer periphery of the burner head with the upper portions of the plurality of flame orifice forming grooves formed on the upper end of the outer peripheral wall of the burner body, and connected to the distribution chamber In a stove burner that introduces a mixed gas from a mixed gas passage and burns in the flame port, a plate-like member that is positioned at a height equal to or higher than the height of the upper end of the flame port forming groove and faces the bottom Is fixed to the distribution chamber of the burner body, an annular protrusion protruding downward is provided on the lower surface of the burner head, and an opening corresponding to the outer diameter of the annular protrusion is provided in the plate member. The annular protrusion is engaged with the opening. Characterized by positioning the burner head on the burner body by Rukoto.

  According to the present invention, when the burner head is mounted on the burner body, the annular protrusion of the burner head is engaged with the opening of the plate member. Thereby, the burner head is positioned on the burner body via the plate-like member, and the positional deviation of the burner head with respect to the burner body can be reliably prevented. Therefore, since the burner head is positioned by simply placing the burner head on the burner body, the operation of attaching the burner head onto the burner body can be performed very easily.

  Further, the burner head of the present invention can easily determine the upper surface side and the lower surface side of the burner head by providing the annular protrusion on the lower surface. Therefore, when the burner head is placed on the burner body, there is an advantage that it is extremely difficult for the user to place the burner head upside down with the wrong upper and lower surfaces.

  Incidentally, since the burner head can be placed on the burner body regardless of the upper and lower surfaces, it is conceivable that the user mistakenly places the inverted burner head on the burner body.

  Therefore, in the present invention, the outer diameter of the plate-like member is formed at least as large as the outer diameter of the burner body, and the outer peripheral portion of the plate-like member is the upper end of the outer peripheral wall of the burner body. For example, the upper part of the groove for forming the flame opening may be covered with an outer peripheral part of the burner head. If comprised in this way, since the upper part of the several flame | mouth opening groove | channel formed in the upper end part of the outer peripheral wall of a burner body is covered by the outer peripheral part of the said plate-shaped member, the outer peripheral wall and board of a burner body A flame opening is formed with the shaped member. Even if the user accidentally places the inverted burner head on the burner body, if the burner head closes the opening of the plate-like member, the flame is surely spread around the outside of the burner body. Can be formed.

  By the way, if the flame is normally formed when the inverted burner head is placed on the plate-like member of the burner body, it is difficult for the user to notice that the placement state of the burner head is incorrect. .

  Therefore, the plate member is provided with a protrusion for inclining the burner head by abutting against a predetermined position of the burner head when the burner head is turned upside down and placed on the plate member. The user can easily notice that the head is turned over.

  That is, by providing the protrusions, the burner head in an inverted state comes into contact with the protrusions and is inclined on the plate member, and a gap is generated in a part of the opening of the plate member. When the burner is burned in this state, a flame is formed around the outside of the burner body by each flame mouth, and at the same time, a mixed gas (fuel gas) ejected from a gap in a part of the opening formed by the inclination of the burner head The gas on which the primary air is mixed) increases the flame on the side where the gap is formed. And, by setting the combustion state different from the normal state in this way, the user can easily notice that the burner head is turned over, and prompt the user to smoothly return the burner head to the normal state. Can do.

  In addition, a communication port that communicates with the mixed gas passage is provided at a position corresponding to the opening of the plate-like member at the bottom of the burner body, and the burner head has the lower surface thereof You may provide the rod-shaped body extended toward the said communicating port through the said opening part of the said plate-shaped member from the position enclosed by the cyclic | annular protrusion. At this time, the rod-shaped body is formed to have a length that extends upward from the five virtues when the burner head is placed on the plate-like member by turning the burner head upside down. By doing so, when the burner head is turned upside down, the rod-like body extends upward from the five victories, and a cooking container such as a pan cannot be placed on the five victories. As a result, the user immediately notices that the burner head is turned over, and can be urged to return the burner head to a normal state.

Explanatory sectional drawing which shows the stove using the burner for stove of embodiment of this invention. Explanatory sectional drawing of the burner for stove of this embodiment. An explanatory perspective view showing a burner body. An explanatory perspective view showing a head locking plate. An explanatory perspective view showing a burner head. Explanatory drawing which shows an example of the state which mounted the reverse burner head on the burner body. Explanatory sectional drawing of the burner for stoves provided with the rod-shaped body. Explanatory sectional drawing of the burner for stove of other embodiment.

  Embodiments of the present invention will be described with reference to the drawings. The burner 1 of this embodiment is provided in the gas stove 2 as shown in FIG. An upper surface opening 4 through which the burner 1 is exposed is formed in the housing 3 of the gas stove 2. On the periphery of the upper surface opening 4, an annularly formed juice receiver 5 is placed. The soup receptacle 5 is integrally provided with a plurality of five virtue claws 7. Thereby, cooking containers, such as a pot which is not shown in figure, are mounted in the 5 virtue claw 7, and cooking with the burner 1 can be performed now.

  The gas stove 2 includes a gas supply pipe 8 for supplying fuel gas from the outside and a cock 9 connected to the gas supply pipe 8. The cock 9 has its fuel gas supply amount adjusted by operating an operation knob 11 provided on the front panel 10 of the housing 3. A mixing pipe 12 (mixed gas passage) is connected to the cock 9. The mixing tube 12 is supported by a cross beam member 14 fixed inside the housing 3 via a support plate 13. The mixing tube 12 supplies the burner 1 with a mixed gas in which gas and primary air are mixed. A primary air intake 15 is formed at the proximal end of the mixing tube 12.

  As shown in FIG. 2, the burner 1 includes a burner head 16, a head locking plate 17 (plate member), and a burner body 18. As shown in FIGS. 2 and 3, the burner body 18 includes a circular bottom portion 19 and a cylindrical outer peripheral wall 20 that is connected to the periphery of the bottom portion 19. In addition, a connecting cylinder portion 21 that connects the mixing tube 12 is provided at the center of the bottom portion 19, and a communication port 22 that communicates with the mixing tube 12 is formed inside the connecting tube portion 21.

  The outer peripheral wall 20 and the connecting cylinder part 21 are formed concentrically, and a distribution chamber 23 for distributing the mixed gas is formed in a space surrounded by the bottom part 19, the outer peripheral wall 20, and the connecting cylinder part 21.

  Further, a plurality of flame opening forming grooves 24 are formed at the upper end of the outer peripheral wall 20. Further, a small flame opening forming groove 25 which is a groove shallower than the flame opening forming groove 24 is formed at a position corresponding to each claw of Gotoku 6.

  Further, as shown in FIG. 3, a plurality (three in this embodiment) of connecting projections 26 for connecting and supporting the head locking plate 17 are erected on the bottom 19 constituting the distribution chamber 23. Yes. A screw hole 27 is formed in the connecting convex portion 26, and the head locking plate 17 is fixed by a screw member 28 as shown in FIG.

  As shown in FIG. 2, the head locking plate 17 is formed in a substantially flat disk shape by a relatively thin metal plate, and the outer diameter thereof is at least the same as the outer diameter of the outer peripheral wall 20. It is formed in size. Further, as shown in FIGS. 2 and 4, a circular opening 29 is formed in the center of the head locking plate 17. As shown in FIG. 2, the opening 29 is provided at a position where the upper part of the connecting cylinder part 21 is opened when the head locking plate 17 is fixed above the distribution chamber 23.

  As a result, the outer peripheral portion of the head locking plate 17 is interposed between the upper end of the outer peripheral wall 20 of the burner body 18 and the outer peripheral portion 30 of the burner head 16, so While abutting and covering the upper part of the forming groove 25, a flat portion excluding the opening 29 located inwardly covers a part of the distribution chamber 23. As a result, a flame mouth is formed by the flame mouth forming groove 24 and the small flame mouth forming groove 25 and the outer peripheral portion of the head locking plate 17.

  Further, as shown in FIG. 4, the opening 29 is formed with a convex edge 31 rising along the inner peripheral edge thereof, and a plurality of screw members 28 are inserted outside the opening 29 (this embodiment). Then, three) through-holes 32 are formed. Furthermore, a projection 33 protruding upward is formed on a part of the convex edge 31.

  As shown upside down in FIG. 5, the burner head 16 is a metal disk-like body, and its outer peripheral portion 30 extends in a hook shape and is formed flat. As shown in FIG. 2, the flat outer peripheral portion 30 of the burner head 16 is formed along the upper edge of the outer peripheral wall 20 of the burner body 18. Further, a protruding portion 35 is formed on the inner side of the outer peripheral portion 30 so as to protrude upward via a tapered inclined portion 34, and the inner side of the inclined portion 34 of the protruding portion 35 is formed substantially flat. As shown in FIGS. 2 and 5, a cylindrical annular protrusion 36 is provided at the center of the flat lower surface of the raised portion 35.

  As shown in FIG. 2, the burner head 16 is placed on the outer peripheral wall 20 of the burner body 18 via the outer peripheral portion of the head locking plate 17. At this time, the annular protrusion 36 is detachably inserted into the opening 29 of the head locking plate 17. As described above, the burner head 16 is positioned on the burner body 18 with the annular protrusion 36 being fixed on the burner body 18 by being attached to the burner body 18 with the annular protrusion 36 facing downward. Moreover, the operation of attaching the burner head 16 to the burner body 18 is very simple.

  Further, for example, as shown in FIG. 6, when the burner head 16 is mounted on the burner body 18 in an inverted state, the upper surface (lower side) of the burner head 16 is a protrusion of the head locking plate 17. 33, the burner head 16 is tilted. When the burner head 16 is tilted, a gap is generated in a part of the opening 29 of the head locking plate 17. When burned in this state, the flame formed on the side where the gap of the opening 29 is generated becomes larger than the flame formed on the outer periphery of the burner body 18 at other positions. As a result, the user notices that the burner head 16 has been set upside down and can quickly return the burner head 16 to normal.

  When the burner head 16 is returned to the normal state, the protrusion 33 of the head locking plate 17 is accommodated in the raised portion 35 of the burner head 16, and the interference between the protrusion 33 and the burner head 16 is prevented. In other words, the protrusion 33 does not interfere with the burner head 16 when the burner head 16 is mounted on the burner body 18 with the annular protrusion 36 facing downward, and the burner head 18 is turned upside down. When mounted on the top, it protrudes to a height that abuts the burner head 16 and tilts the burner head 16.

  The protrusion 33 is preferably provided on the convex edge 31 of the opening 29 as in this embodiment, but is not limited thereto, and the burner head 16 is mounted on the burner body 18 in an inverted state. It may be provided at any position of the head locking plate 17 as long as it is in contact with the burner head 16 only at that time. Further, the projection 33 may be single as in the present embodiment, but if the burner head 16 can be inclined when the burner head 16 is mounted on the burner body 18 in an inverted state, the projection 33 in FIG. You may increase suitably as shown with a virtual line.

  In the above configuration, the example in which the protrusion 33 is provided on the head locking plate 17 in order to make the user aware that the burner head 16 has been incorrectly set upside down has been shown. As shown to (a) and FIG.7 (b), you may provide the rod-shaped body 37 for an erroneous setting prevention. As shown in FIG. 7A, the rod-shaped body 37 is fixed to the central portion surrounded by the annular protrusion 36 on the lower surface of the burner head 16, and passes through the opening 29 of the head locking plate 17 to connect the connecting cylinder portion 21. The communication port 22 and the inside of the mixing tube 12 are provided so as to extend. Then, as shown in FIG. 7B, the rod-like body 37 has a length that extends upward from the upper end of the five virtue claws 7 when the burner head 16 is mistakenly turned upside down. Is formed. By doing so, even if the burner head 16 is mistakenly set upside down, a cooking container such as a pan cannot be placed on the Gotoku nail 7, and the user can ensure that the burner head 16 is not misplaced. You can know the set.

  Although not shown, the protrusion 33 and the rod-shaped body 37 may not be provided. In this case, even if the user mistakenly attaches the burner head 16 to the burner body 18 in an inverted state, the upper surface (downward) of the burner head 16 is the opening 29 of the head locking plate 17. And a normal flame is formed on the entire outer periphery of the burner body 18. For this reason, although it is difficult for the user to notice the wrong setting of the burner head 16, the flame mouth formed by the flame mouth forming groove 24 and the small flame mouth forming groove 25 and the outer peripheral portion of the head locking plate 17 is used. Since normal combustion is obtained, cooking can be performed without any problem.

  Further, as described above, the configuration in which the outer peripheral portion of the head locking plate 17 is interposed between the upper end of the outer peripheral wall 20 of the burner body 18 and the outer peripheral portion 30 of the burner head 16 is a state in which the burner head 16 is turned over. Thus, the case where it is placed on the burner body 18 is considered. Therefore, if the unforeseen situation of erroneous setting of the burner head 16 as described above does not occur reliably, the outer diameter of the head locking plate 17 is set to the outer peripheral wall 20 of the burner body 18, for example, as shown in FIG. It may be smaller than the inner diameter. According to this, since the head locking plate 17 can be made relatively small, the material cost can be reduced. In this case as well, the burner head 16 is attached to the burner body 18 with the annular protrusion 36 facing downward, and the annular protrusion 36 of the burner head 16 is locked to the opening 29 of the head locking plate 17. To be positioned reliably. The outer peripheral portion 30 of the burner head 16 is placed directly on the upper end of the outer peripheral wall 20 of the burner body 18 (without passing through the outer peripheral portion of the head locking plate 17), and the outer peripheral portion 30 of the burner head 16 is By covering the upper part of the forming groove 24 and the small flame opening forming groove 25, a flame opening is formed by the flame opening forming groove 24 and the small flame opening forming groove 25 and the outer peripheral portion 30 of the burner head 16.

DESCRIPTION OF SYMBOLS 1 ... Burner for stove, 7 ... Gotoku claw (5 virtue), 12 ... Mixing pipe (mixed gas passage), 16 ... Burner head, 17 ... Head locking plate (plate-shaped member), 18 ... Burner body, 19 ... Bottom, DESCRIPTION OF SYMBOLS 20 ... Outer peripheral wall, 22 ... Communication port, 23 ... Distribution chamber, 24, 25 ... Flame opening formation groove | channel, 29 ... Opening part, 30 ... Outer peripheral part, 33 ... Projection, 36 ... Annular projection, 37 ... Rod-shaped body.

Claims (4)

A burner body that forms a distribution chamber of a mixed gas by a circular bottom and a cylindrical outer peripheral wall continuous to the periphery of the bottom, and a disc-shaped burner head that detachably covers the distribution chamber, A mixed gas passage that is connected to the distribution chamber by forming a plurality of flame openings by covering the outer periphery of the burner head with the upper portions of the plurality of flame orifice forming grooves formed at the upper end of the outer peripheral wall of the burner body. In the burner for the stove to introduce the mixed gas from
A plate-like member located at a height equal to or higher than the height of the upper end of the flame formation groove and facing the bottom is fixed to the distribution chamber of the burner body ,
An annular protrusion projecting downward is provided on the lower surface of the burner head,
An opening corresponding to the outer diameter of the annular protrusion is provided in the plate member, and the burner head is positioned on the burner body by engaging the annular protrusion with the opening. Stove burner. The plate-like member has an outer diameter that is at least as large as the outer diameter of the burner body, and the outer peripheral portion of the plate-like member is between the upper end of the outer peripheral wall of the burner body and the outer peripheral portion of the burner head. The stove burner according to claim 1, wherein the burner forming groove covers the upper part of the flame mouth forming groove.   The plate-like member includes a protrusion for inclining the burner head by contacting a predetermined position of the burner head when the burner head is placed on the plate-like member with the burner head turned upside down. Item 10. A stove burner according to Item 2. The burner body includes a communication port communicating with the mixed gas passage at a position corresponding to the opening of the plate-like member at the bottom.
The burner head includes a rod-like body extending from the position surrounded by the annular protrusion on the lower surface of the burner head to the communication port through the opening of the plate-like member,
The rod-shaped body is formed to have a length that extends above the five victories when the burner head is inverted and placed on the plate-like member. Item 3. A stove burner according to item 1 or 2.