JP4470062B2 - Gas stove - Google Patents

Description

  The present invention relates to a gas stove, and more particularly to a gas stove that improves the thermal efficiency by introducing combustion gas of a burner to a corner portion and a side surface from a bottom surface to a side surface of a cooking vessel.

  FIG. 12 is a perspective view of a conventional table stove 100. In general, a gas stove for cooking by heating includes a burner 140 that burns combustion gas and a five virtue 200 that supports a cooking container on the burner 140, as shown in FIG. The virtues 200 are integrally composed of a ring-plate-shaped virtuosity ring 210 provided around the burner 140 and an L-shaped virtuosity claw 220 that is arranged on the virtuosity ring 210 at predetermined intervals and supports the cooking container. . In order to improve the thermal efficiency of the gas stove, it is important to suppress the spread of flames and combustion gases as much as possible, and to make the heat flow as high as possible flow along the surface of the cooking vessel. Therefore, in order to improve the thermal efficiency of these gas stoves, a proposal is given to make the cooking container as close to the flame as possible, and the contact distance between the flame or combustion gas and the cooking container is increased. Many proposals have been made.

For example, in Patent Document 1, the flame ejection direction is inclined by a predetermined angle in the circumferential direction of the burner with respect to the straight line connecting the burner center and the flame mouth, and the contact distance between the combustion gas and the cooking vessel is increased to improve the thermal efficiency. I am letting. Moreover, in patent document 2, the horizontal distance from the outer peripheral surface of a flame mouth is arrange | positioned within 30 mm, and the inclination collar part extended by making the inner peripheral side surface of a Gotoku ring inclined downward toward the ring center is arranged. Combustion due to shortage of secondary air even in Gotoku, where the burner combustion secondary air is guided to the vicinity of the flame outlet, and the thermal efficiency is improved by lowering the gap between the flame mouth and the cooking container Prevents defects and improves thermal efficiency.
JP 2003-166718 A JP 2003-161449 A

  However, in the gas stove of Patent Document 1, the contact distance of the flame and the combustion gas to the bottom surface of the cooking container is long, but the contact distance of the flame and the combustion gas to the side surface of the cooking container and the portion from the bottom surface to the side surface. Is not considered. Similarly, in the five virtues in which the virtuosity claw of Patent Document 2 is lowered to reduce the distance between the flame opening and the cooking container, the contact distance of the flame and the combustion gas to the side surface of the cooking container and the portion from the bottom surface to the side surface Not considered.

  However, the corner portion extending from the bottom surface to the side surface of the cooking container may be ¼ of the surface area outside the cooking container such as a pan or a frying pan. In addition, there is no distinction between the bottom surface and the side surface in the wok, and there is a spherical shape, that is, the outside of the cooking container is entirely a corner portion. The flame and combustion gas that flows along the corner part flows along the side of the cooking vessel as it is, so that the flame and combustion gas flow along the corner part is to improve the thermal efficiency. is important.

  The present invention has been made in order to solve the above-mentioned problems, and has five virtues for improving the thermal efficiency by introducing flames and combustion gases to the corner portion from the bottom surface to the side surface of the cooking vessel and to the side surface of the cooking vessel. It is intended to provide a gas stove.

In order to solve the above problems, in the gas stove according to the first aspect of the present invention, a burner for heating the cooking container, a ring plate provided around the burner, and a plurality of five virtue claws that support the bottom surface of the cooking container are provided. A gas stove that forms a ring-shaped combustion gas passage between the upper surface of the ring plate and the bottom surface of the cooking vessel, and the outer diameter of the bottom surface of the cooking vessel is set by placing the cooking vessel. A guide member that moves in accordance with the guide member, and the guide member includes a plurality of cylindrical members having different outer diameters that surround the burner and can be moved up and down. A cylindrical member smaller than the outer diameter of the cooking vessel is pushed downward by the bottom surface of the cooking container and moves downward, and a cylindrical member larger than the outer diameter of the cooking container is kept in the upper position, and the combustion gas of the burner is removed from the cooking container. Corner from bottom to side It has a structure, characterized in that leading to partial and side.

Moreover, in the gas stove of the invention according to claim 2 , in addition to the configuration of the invention of claim 1, the five virtue claws partition the combustion gas passage and divide the combustion gas passage into a plurality of combustion gas passages. It is the structure characterized by guide | inducing to the outside.

Moreover, in the gas stove of the invention according to claim 3 , in addition to the configuration of the invention according to claim 1 or 2 , the virtuosity claw is a burner circumferential direction with respect to a straight line directed radially from the center of the burner. A plate-like vertical wall that is inclined at a predetermined angle and extends outward from the inner tip to the outer tip is formed upright from the upper surface of the ring plate, and when the cooking container is placed, the upper end of the virtuosity claw Is in contact with the bottom surface of the cooking vessel, and the combustion gas passage of the burner is divided into a plurality of combustion gas passages defined by being surrounded by the upper surface of the ring plate, the five virtue claws and the bottom surface of the cooking vessel, and a combustion gas Is discharged to the outside while colliding with the wall of the five virtue claws.

In the gas stove according to the first aspect of the present invention, the guide member can be moved according to the outer diameter of the bottom surface of the cooking container by placing the cooking container, and the combustion gas of the burner can be transferred to the cooking container by the guide member. It can guide to the corner part from the bottom to the side and the side of the cooking vessel. Therefore, the cooking container can be heated not only from the bottom but also from the corners and sides thereof by the burner combustion gas, so that the heat transfer area is increased and the thermal efficiency of the burner is improved. A plurality of cylindrical members having different outer diameters of the guide member can surround the burner and move up and down. When the cooking container is placed on Gotoku, the cylindrical member smaller than the outer diameter of the cooking container is pushed downward by the bottom surface of the cooking container and moves downward, but the cylindrical member larger than the outer diameter of the cooking container Since the member is kept in the upper position without moving, the combustion gas of the burner can be guided to the corner portion and the side surface of the cooking vessel. Therefore, the cooking container can be heated not only from the bottom but also from the corners and sides thereof by the burner combustion gas, so that the heat transfer area is increased and the thermal efficiency of the burner is improved.

In addition, in the gas stove of the invention according to claim 2 , in addition to the effect of the invention of claim 1 , the combustion gas passage is partitioned by the five virtue claws for placing the cooking container provided on the upper surface of the ring plate. Since the combustion gas is divided into a plurality of combustion gas passages, it is possible to distribute the combustion gas evenly in a narrow space without biasing the flow of the combustion gas, and to transmit between the combustion gas and the cooking vessel. The thermal efficiency can be improved, and higher thermal efficiency can be obtained.

Further, in the gas stove of the invention according to claim 3 , in addition to the effect of the invention according to claim 1 or 2 , the five virtue claws are predetermined in the burner circumferential direction with respect to a straight line directed radially from the center of the burner. A plate-like vertical wall inclined at an angle and extending outward is formed upright from the upper surface of the ring plate from the inner tip to the outer tip, so that when the cooking container is placed, the upper end of the virtuosity claw is the cooking container In contact with the bottom surface, the combustion gas passage of the burner is divided into a plurality of combustion gas passages defined by the ring plate upper surface, the five virtue nails and the cooking vessel bottom surface, and the combustion gas is divided into the wall of the virtue nails. It can be discharged outside while colliding. Therefore, in such virtues, the combustion gas passage can be made longer on the bottom surface of the cooking vessel, and the thermal efficiency can be further improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a table stove 1 according to the first embodiment. As shown in FIG. 1, the table stove 1 as a gas stove is provided with an opening in the top plate 12, a cylindrical burner 14 is disposed at the center of the opening, and a juice receiving tray 11 (see FIG. 1). 2) is arranged. On the upper periphery of the burner 14, a virtues 20 for placing the cooking container P is provided.

  The five virtues 20 of the table stove 1 of the first embodiment add the combustion gas to the corner portion C and the side surface S of the cooking container P in order to improve the thermal efficiency of the combustion gas (including flame) of the burner 14. The structure is such that Therefore, with reference to FIGS. 2 to 5, the structure of the table stove 1, especially the five virtues 20, will be described. FIG. 2 is a top view of the virtues 20, and FIG. 3 is a perspective view of the virtues 20. 4 is a longitudinal sectional view of the virtues 20 in a state where the cooking container P is placed, and FIG. 5 is a virtues in a state where the cooking container P having an outer diameter smaller than that of the cooking container P in FIG. 4 is placed. FIG.

  The burner 14 of the table stove 1 is an all-primary air type burner that sucks most of the air necessary for combustion as primary air. As shown in FIGS. 4 and 5, a burner plate 17 and a burner as a combustion surface are used. A main body 15. The burner plate 17 is a flat plate made of porous ceramics and has a large number of through holes. The burner plate 17 is disposed so that its combustion surface is disposed in the horizontal direction and the flame is burned upward. An air supply fan 18 for supplying combustion air is connected to the burner main body 15 at an upstream end, and a gas nozzle 19 for injecting combustion gas is provided in the middle of the air supply passage. Further, a mixing pipe 16 for mixing the combustion gas and the combustion air is formed downstream of the gas nozzle 19, and the combustion gas injected from the gas nozzle 19 and the combustion air are mixed in the mixing pipe 16 to supply air. It is sent out to the burner plate 17 side by the fan 18.

  As shown in FIGS. 2 and 3, the five virtues 20 of the table stove 1 according to the first embodiment include a plurality of arcuate plate-like vertical walls 22 for placing and supporting the cooking container P, and a burner 14. A ring plate 21 serving as a substrate that covers the upper portion of the opening of the top plate 12 and the juice tray 11 that is provided around the top plate 12 and is provided with a plate-like vertical wall 22 and the main body of the virtues 20 are fixed on the top plate 12 And a guide member 30 for guiding the combustion gas to the corner portion (portion extending from the bottom surface to the side surface) of the cooking vessel P.

  The ring plate 21 is a ring-shaped plate and is inclined slightly downward toward the center as shown in FIGS. Then, eight plate-like vertical walls 22 are erected on the upper surface so as to turn counterclockwise in a plan view toward the center. The tip of the plate-like vertical wall 22 is provided close to the outer peripheral side surface of the burner 14, continues to the outer peripheral side surface of the ring plate 21, and the upper surface is formed substantially horizontally. Further, the ring plate 21 and the burner 14 are formed with almost no gap. Accordingly, the upper surface of the ring plate 21, the plate-like vertical wall 22, and the bottom surface of the cooking container P form a combustion gas passage that is surrounded with almost no gap between the upper, lower, left and right surfaces, and the combustion gas ejected from the burner 14 The bottom surface of the cooking vessel P is heated through the combustion gas passage partitioned by the plate-like vertical wall 22 without almost flowing out to the outside.

  In this way, by dividing the space between the bottom surface of the cooking container P and the ring plate 21 by the plate-like vertical wall 22, the combustion gas passage is also partitioned to form a plurality of combustion gas passages. The flow is evenly distributed in a narrow space surrounded by the upper surface of the ring plate 21, the plate-like vertical wall 22 and the bottom surface of the cooking container P without being biased. Therefore, the heat transfer efficiency to the cooking container P improves. Furthermore, since the plate-like vertical wall 22 is erected by turning toward the center (inclined by a predetermined angle in the circumferential direction of the burner 14), compared to the case where it is erected radially from the center. Thus, the combustion gas passage is formed long. Therefore, the combustion gas is released to the outside after having been in contact with the bottom surface of the cooking container P for a longer period of time, so that the heat transfer efficiency to the cooking container P is further improved.

  The ring plate 21 that faces the cooking vessel P and forms a combustion gas passage has a double structure including a front plate 21a that is in direct contact with the high-temperature combustion gas and a back plate 21b that is not in direct contact with the combustion gas. ing. Thereby, the clearance gap formed between the front board 21a and the back board 21b functions as a heat insulation layer, and it is preventing that the heat | fever of the combustion gas transmitted to the front board 21a is radiated from the back surface. Further, the ceramic 21e is sandwiched between the front plate 21a and the back plate 21b over the entire inner peripheral end portion and outer peripheral end portion of the ring plate 21, and the front plate 21a and the back plate 21b are connected. The heat of the combustion gas transferred to the front plate 21a is suppressed from transferring to the back plate 21b by the inner peripheral end and the outer peripheral end. Therefore, the heat transfer of the combustion gas transferred to the front plate 21a to the back plate 21b and the heat radiation from the back plate 21b are suppressed, and the temperature of the combustion gas is prevented from lowering. In addition, in this double structure of the ring plate 21, the effect is further enhanced if a heat insulating structure such as a so-called thermos is formed by evacuating the front plate 21a and the back plate 21b.

  Further, a plurality of guide members 30 are attached to the outer periphery of the ring plate 21 of the virtues 20. The guide member 30 includes a substantially fan-shaped plate-like member 31 having a curve along the outer periphery of the ring plate 21, a support plate 33 that is a substantially rectangular plate-like member for supporting the cooking container P, and a plate-like member. 31 and a spring 32 that urges the support plate 33 upward. The support plate 33 is erected substantially parallel to the radiation from the center of the ring plate 21 toward the outer periphery at the approximate center of the upper surface of the plate-like member 31. In addition, the outer peripheral side of the plate-shaped member 31 is curved upward, and is formed so as to guide the combustion gas flowing out from the ring plate 21 to the corner portion and the side surface of the cooking vessel P. The plate-like member 31 is pivotally attached to the outer periphery of the ring plate 21 with a hinge 34, and further, a spring 32 is attached between the lower surface of the plate-like member 31 and the top plate 12. The guide member 30 is biased upward and inward of the five virtues 20. Therefore, as shown in FIG.4 and FIG.5, the inclination of the plate-shaped member 31 changes with the magnitude | sizes of the outer diameter of the bottom face B of the cooking container P, and when the cooking container P with a smaller outer diameter of the bottom face B is mounted In this case, the inclination of the plate member 31 becomes steeper.

  Thus, when the cooking container P is placed on the virtues 20, the corner portion C of the cooking container P abuts on the upper surface of the support plate 33, pushes the support plate 33, and the plate member 31 is biased by the spring 32. Move in the direction opposite to. That is, the guide member 30 supports the corner portion C of the cooking container P with the support plate 33, and the plate-like member 31 is disposed in a state where the corner portion C of the cooking container P is attached. As a result, a space corresponding to the height of the support plate 33 is secured between the bottom surface B and corner portion C of the cooking container P and the upper surface of the plate-like member 31. And the combustion gas which flowed out from the outer periphery of the ring board 21 passes through this space, and heats the bottom face B and the corner part C of the cooking vessel P. Moreover, since the outer peripheral side of the plate-shaped member 31 is curved upward, the combustion gas that has passed through rises along the upper side, that is, the side surface S of the cooking vessel P, and heats the side surface S. Therefore, as compared with the case where the guide member 30 is not provided and the combustion gas spreads to the surroundings, the combustion gas is guided by the guide member 30 and the thermal efficiency is increased by the amount of heating of the corner portion C and the side surface S of the cooking container P.

  Note that the gas stove of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. For example, the burner is not limited to the all primary air burner that supplies most of the combustion air as primary air, but may be a Bunsen burner, a semi-Bunsen burner, or a red fire burner. In the above embodiment, the table stove has been described as an example. However, the gas stove is not limited to the table stove, and may be a built-in stove incorporated in the kitchen unit, and various gas stoves. Can be adapted to.

  In the first embodiment, the five virtues 20 in which the five virtue claws are formed by the arcuate plate-like vertical wall 22 are taken as an example. However, as an example of the prior art, an L-shaped five virtue is shown. Needless to say, other virtues such as virtues with claws may be used. Further, it goes without saying that the shape of the outer periphery of the ring plate 21 is not limited to a circle but may be a polygon. However, since the bottom surface B of the cooking container P is often circular, the guide member 30 is as close to a circle as possible. It is desirable that they are arranged along the shape. In the above embodiment, the ring plate 21 has a double structure for preventing the heat release of the combustion gas. However, the structure of the ring plate is not limited to the double structure, and a single ring plate or a multiple ring is used. It may be a plate.

  Moreover, the arrangement | positioning space | interval of the several guide member 30 does not need to be an interval as shown in FIG. 2, and the space | interval which the guide member 30 does not contact mutually should just be large. If this interval is wide and the width of the guide member 30 is narrow, the combustion gas flowing out from the outer periphery of the ring plate 21 does not rise along the corner portion C and the side surface S of the cooking vessel P, and the surroundings of the cooking vessel P Will spread to. Therefore, since this space | interval is as narrow as possible and the one where the width | variety of the guide member 30 is wide, many combustion gas rises along the corner part C and the side surface S of the cooking container P, Therefore The cooking container P can be heated firmly. And thermal efficiency increases. Further, the shape of the plate-like member 31 is not limited to that of the present embodiment. When the outer peripheral side is curved upward as in the plate-like member 31 of the present embodiment, the combustion gas is particularly configured to follow the side surface S of the cooking vessel P, so the outer peripheral side is upward. It is desirable to be curved. However, since the plate-like member 31 is pivotally supported by the ring plate 21 on the inner peripheral side, and is urged upward by the spring 32 and inward of the virtues 20, the plate-like member 31 itself approaches the side surface S. The outer peripheral side of the plate-like member 31 may not be curved.

  Next, the table stove 51 of 2nd embodiment of this invention is demonstrated. FIG. 6 is a perspective view of the table stove 51 of the second embodiment. A table stove 51 as a gas stove is provided with an opening in the top plate 12 as in the table stove 1 of the first embodiment shown in FIG. 14 is arranged, and a juice receiving tray (not shown) is arranged around it. And around the upper periphery of the burner 14, the virtues 70 for mounting the cooking container P are provided. The burner 14 is an all-primary air burner that sucks most of the air necessary for combustion as primary air, as in the first embodiment, and as shown in FIG. 11, a burner plate as a combustion surface. 17 and a burner body 15 are provided. The burner plate 17 is a flat plate made of porous ceramics and has a large number of through holes. The burner plate 17 is disposed so that its combustion surface is disposed in the horizontal direction and the flame is burned upward. The burner body 15 is connected to an air supply fan 18 for supplying combustion air at the upstream end, and a gas nozzle 19 for injecting combustion gas is provided in the middle of the air supply passage. Further, a mixing pipe 16 for mixing the combustion gas and the combustion air is formed downstream of the gas nozzle 19, and the combustion gas injected from the gas nozzle 19 and the combustion air are mixed in the mixing pipe 16 to supply air. It is sent out to the burner plate 17 side by the fan 18.

  The virtues 70 of the table stove 51 of the second embodiment have a structure in which the combustion gas is attached to the corner portion C and the side surface S of the cooking vessel P in order to improve the thermal efficiency of the combustion gas of the burner 14. It has become. The structure of the five virtues 70 of the table stove 51 will be described with reference to FIGS. 7 is a top view of the virtues 70, FIG. 8 is a perspective view of the ring plate 71 of the virtues 70, FIG. 9 is a perspective view of the tubular member 83, and FIG. FIG. 11 is a longitudinal sectional view of the virtues 70 in a state where the cooking container P is placed.

  The virtues 70 include a ring plate 71 having a plurality of virtues claw 72 as shown in FIG. 8, a cylindrical member 83 as shown in FIG. 9, and cylindrical members 81 and 82 ( 10 and FIG. 11) and a spring 84 (see FIG. 11) for urging the cylindrical members 81, 82, 83 upward. As shown in FIGS. 8, 9, and 11, the ring plate 71 is a ring-shaped member and includes an upper member 74 and a lower member 75. The upper member 74 is slightly inclined toward the center portion, and the lower member 75 is formed by horizontally folding outward from the inner peripheral end of the upper member 74. Further, the upper member 74 has the five virtue claws 72 standing on its upper surface. Further, a guide hole 78 for fitting the cylindrical member 83 shown in FIG. 9 from the lower direction to the upper direction is provided, and on the outer side, the cylindrical member 82 is moved from the lower direction to the upper direction. Guide holes 77 are provided for fitting together. The guide holes 77 and 78 divide a ring-shaped groove having a width equal to or greater than the thickness of guide walls 97 and 98 of cylindrical members 82 and 83, which will be described later, at a portion where the five virtue claws 72 are disposed. A plurality of substantially fan-shaped shapes are formed as holes penetrating the upper member 74.

  Here, the cylindrical members 81, 82, and 83 which are guide members will be described. First, the cylindrical member 83 has a substantially cylindrical shape as shown in FIG. 9, and an engaging portion 93 for engaging with the guide hole 78 toward the inner side of the cylinder stands at the lower end thereof. It is installed. Further, the guide wall 98 which is the side surface of the cylindrical member 83 is divided at a predetermined interval (interval of the five virtue claws 72 disposed on the ring plate 71), and a claw groove 63 is formed. Since the guide wall 98 is fitted in the guide hole 78 of the ring plate 71, the guide hole 78 is divided at a position where the virtuosity claw 72 is disposed on the upper part thereof. Since the claw groove 63 is also formed at the same position 98, the guide wall 98 can be inserted into the guide hole 78. As shown in FIG. 11, a spring 84 is installed between the lower member 75 of the ring plate 71 and the locking portion 93 of the tubular member 83. The cylindrical member 83 is biased upward by the spring 84, but the locking portion 93 is locked to the edge of the guide hole 78.

  The cylindrical member 82 has the same shape as the cylindrical member 83 shown in FIG. 9, but its outer diameter is larger than that of the cylindrical member 83 and is fitted in the guide hole 77. Yes. Also in this cylindrical member 82, a spring 84 is provided between the lower surface of the locking portion 92 erected toward the inside of the cylinder at the lower end and the upper surface of the lower member 75, and the cylindrical member 82. Is biased upward by a spring 84 and locked to the edge of the guide hole 77 by a locking portion 92.

  The cylindrical member 81 includes a guide wall 96 that is a side surface of the cylinder and a locking portion 91 that is erected inward from the lower end thereof. The wall 96 is not divided and its inner periphery is substantially the same as the outer periphery of the ring plate 71. A spring 84 is provided between the lower surface of the locking portion 91 and the upper surface of the lower member 75 of the ring plate 71. The cylindrical member 81 is urged upward by a spring 84 and is locked to the outer peripheral end of the ring plate 71 by a locking portion 91.

  Note that support protrusions 88 that support the cooking container P are provided at predetermined intervals on the upper part of each guide wall 98 of the cylindrical member 83, and the cooking container is provided on the upper part of each guide wall 97 of the cylindrical member 82. Support protrusions 87 that support P are provided at predetermined intervals, and support protrusions 86 that support the cooking container P are provided at predetermined intervals above the guide wall 96 of the cylindrical member 81. . Thus, when the cooking container P is placed on the virtues 70, the cooking container P is placed on the cylindrical member smaller than the outer diameter of the cooking container P and pushes down the cylindrical member. A space is secured between the upper surface of the guide wall of the cylindrical member smaller than the outer diameter of P and the bottom surface B or corner portion C of the cooking container P by the height of the support protrusion. This space becomes a passage for the combustion gas.

  As shown in FIG. 10, in the virtues 70, tubular members 81, 82, and 83 are fitted to a ring plate 71, and each is biased upward by a spring 84. When the cooking container P is placed on the virtues 70, the bottom surface of the cooking container P is a support protrusion of a cylindrical member whose outer diameter is smaller than the outer diameter of the bottom surface B of the cooking container P (cylindrical member in FIG. 11). 83, the support projection 88 of the cylindrical member 82 and the support projection 87 of the cylindrical member 82), the cylindrical members 82 and 83 are pushed downward against the urging force of the spring 84. And the cooking container P pushes down the cylindrical members 82 and 83 until it contacts the upper surface of the virtuosity claw 72, and is supported by the virtuosity claw 72. On the other hand, the cylindrical member (the outermost cylindrical member 81 in FIG. 11) whose outer diameter is larger than the outer diameter of the bottom surface B of the cooking container P is pushed down because the cooking container P is not placed. There is no such thing, and it is kept in a state of being biased upward (up position).

  Therefore, the combustion gas of the burner 14 heats the bottom surface B of the cooking container P, and when it is discharged toward the outer peripheral side of the bottom surface B of the cooking container P, that is, toward the corner portion C, the cylinder pushed down by the cooking container P. Between the upper surface of the guide walls (97 and 98 in FIG. 11) of the cylindrical member (cylindrical members 82 and 83 in FIG. 11) and the bottom surface B and corner portion C of the cooking vessel P is a combustion gas passage. It flows out toward the corner part C.

  The guide wall (guide wall 96 in FIG. 11) of the cylindrical member (cylindrical member 81 in FIG. 11) whose outer diameter is larger than the outer diameter of the cooking container P is not pushed downward, so it is kept in the upper position. The combustion gas that has flown out and collides with the guide wall. And the combustion gas which collided rises along the corner part C and the side surface S of the cooking container P, without spreading around the cooking container P, and heats the corner part C and the side surface S. Therefore, compared with the case where there is no cylindrical member 81, 82, 83 and the combustion gas spreads around, the combustion gas is guided by the cylindrical member 81, 82, 83, and the corner portion C and the side surface S of the cooking container P. The heat efficiency increases by the amount of heat.

  Note that the gas stove of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. As in the first embodiment, the burner is not limited to the all primary air burner that supplies most of the combustion air as primary air, Good. In the above embodiment, the table stove has been described as an example. However, the gas stove is not limited to the table stove, and may be a built-in stove incorporated in the kitchen unit, and various gas stoves. Can be adapted to.

  Further, in the second embodiment, the five virtues having the five virtue claws 72 having the L-shaped five virtue claws are exemplified. However, the arc-shaped plate as exemplified in the first embodiment. Needless to say, the virtues may have other shapes, such as the virtues that form the virtuosity claw on the vertical wall. When the virtuosity claw of the arcuate plate-like vertical wall is used, the combustion gas passage in the bottom surface B of the cooking vessel P becomes longer, so that the thermal efficiency is further increased. Needless to say, the shape of the outer periphery of the ring plate 21 is not limited to a circle but may be a polygon.

  Moreover, the shape of the cylindrical members 81, 82, 83 is not limited to that of the present embodiment, and the locking portions 91, 92, 93 may also be divided at the arrangement intervals of the five virtue claws 72. Moreover, although it may be a polygonal cylinder instead of a cylindrical shape, since the shape of the bottom surface B of the cooking container P is often a circle, a shape close to a circle is desirable. Moreover, in the said embodiment, although the three cylindrical members were arrange | positioned, the number of cylindrical members and arrangement | positioning space | interval are not restricted to the thing of this Embodiment.

  The gas stove of the present invention is not limited to a table stove, and may be a built-in stove incorporated in a kitchen unit, and can be applied to various gas stoves.

It is a perspective view of the table stove 1 of 1st embodiment. It is a top view of Gotoku 20 of the first embodiment. It is a perspective view of Gotoku 20 of a first embodiment. It is a longitudinal cross-sectional view of Gotoku 20 of the first embodiment in a state where the cooking container P is placed. It is a longitudinal cross-sectional view of Gotoku 20 of the first embodiment in a state where a cooking container P having an outer diameter smaller than that of the cooking container P of FIG. 4 is placed. It is a perspective view of the table stove 51 of 2nd embodiment. It is a top view of the virtues 70 of the second embodiment. It is a perspective view of the ring board 71 of the virtues 70 of 2nd embodiment. It is a perspective view of the cylindrical member 83 of 2nd embodiment. It is a perspective view of five virtues 70 of a second embodiment. It is a longitudinal cross-sectional view of the virtues 70 of the second embodiment in a state where the cooking container P is placed. It is a perspective view of the conventional table stove 100. FIG.

DESCRIPTION OF SYMBOLS 1 Table stove 14 Burner 20 Gotoku 21 Ring plate 22 Plate-like vertical wall 30 Guide member 31 Plate-like member 33 Support plate 51 Table stove 70 Gotoku 71 Ring plate 72 Gotoku nail 74 Upper member 75 Lower member 77 Guide hole 78 Guide Hole 81 Tubular member 82 Tubular member 83 Tubular member 86 Support projection 87 Support projection 88 Support projection 91 Locking portion 92 Locking portion 93 Locking portion 96 Guide wall 97 Guide wall 98 Guide wall C Corner portion P Cooking container S Side

Claims (3)

A burner for heating the cooking vessel;
A ring plate provided around the burner and a plurality of virtues having a plurality of virtues for supporting the bottom surface of the cooking vessel, and a ring-shaped combustion gas passage is provided between the top surface of the ring plate and the bottom surface of the cooking vessel. In the gas stove that forms,
It comprises a guide member that moves according to the size of the bottom outer diameter of the cooking container by placing the cooking container ,
The guide member is
Comprising a plurality of cylindrical members having different outer diameters surrounding the burner and movable up and down;
When the cooking container is placed on Gotoku, the cylindrical member smaller than the outer diameter of the cooking container is pushed by the bottom surface of the cooking container and moves downward, and the cylindrical member larger than the outer diameter of the cooking container is A gas stove that is maintained in position and guides the combustion gas of the burner to a corner portion and a side surface from the bottom surface to the side surface of the cooking vessel . 2. The gas stove according to claim 1, wherein the five virtue claws divide the combustion gas passage and divide the combustion gas passage into a plurality of combustion gas passages to guide the combustion gas to the outside. The five virtue claws are
A plate-like vertical wall that inclines at a predetermined angle in the circumferential direction of the burner with respect to a straight line radially from the center of the burner and extends outward is formed by standing from the upper surface of the ring plate from the inner tip to the outer tip. And
When the cooking container is placed, the upper end of the five virtue claws abuts on the bottom face of the cooking container, and the combustion gas passage of the burner is surrounded by the upper surface of the ring plate, the five virtue claws, and the bottom face of the cooking container. The gas stove according to claim 1 or 2 , wherein the gas stove is divided into a plurality of combustion gas passages and discharged to the outside while colliding with the wall surface of the five virtue claws.

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