JP2017020678A - Cooking stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooking stove capable of preventing failure from occurring in use of the cooking stove, even in a case where heat due to flame of a burner affects a top board.SOLUTION: A cooking stove includes a top plate 3 closing the opening part of a housing upper surface and then fixed to the upper part of a housing. A center recess part 32 of the top plate 3 is a portion containing a burner opening, which is provided at a substantial center on an upper surface 31 of the top plate 3. The center recess part 32 is formed so as to generate deviation between positions in a vertical direction at which right and left end parts P of the center recess part 32 are disposed, and a position in a vertical direction at which a center part Q of the center recess part 32 is disposed. The center recess part 32 has such a mildly curved shape that the center part Q is position at the lowest position.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a stove provided with a top plate.

  2. Description of the Related Art Conventionally, there has been known a stove in which a press-molded sheet metal top plate is subjected to a surface treatment with a hollow or the like and attached to an upper portion of a casing where a burner or the like is arranged. Such a top plate is provided with one or a plurality of burner openings, and is configured such that the burner faces the inside of the burner opening in a state where the top plate is attached to the upper part of the housing. In this case, the flame mouth forming portion of the burner is disposed above the top plate in order to secure air necessary for combustion.

  Around the burner opening, there is provided a virtuosity mounting portion for mounting on the top plate virtues that support an object to be heated above the burner. The gas stove disclosed in Patent Document 1 is arranged in a stable manner on the top plate by attaching an annular virtuosity frame provided in the virtually base to an ergonomic mounting part that surrounds the burner opening and is raised in an annular shape. To do.

  In conventional stoves, the Gotoku mounting part, which is formed separately from the top plate, is mounted and fixed relatively around the burner opening of the top plate, but it reduces manufacturing and management costs. From this point of view, in recent years, a stove that employs a method in which a top plate is integrally formed with a virtues mounting portion by press working has been put into practical use.

  By the way, when the virtues mounting part is provided separately from the top plate, when the virtues mounting part is attached around the burner opening, the virtues mounting part can be fixed to a reinforcing frame or the like inside the casing by screwing or the like. When using a stove, there is a possibility that the temperature of the five virtue mounting part may rise due to the heat of the burner flame. The influence of the flame heat can be reduced.

JP 2012-242052 A

  However, when the top plate is integrally molded with the Gotoku mounting part, if the Gotoku mounting part is screwed and fixed inside the housing, the screwed part may be exposed on the top plate, which may reduce the beauty of the stove. There is. In addition, when liquid such as boiled juice spills from the cooking container during cooking using the stove toward the screwed portion on the top plate, the bottom surface of the top plate and the liquid that has entered through the gaps in the screw holes Dirt, rust, etc. may occur inside the housing. For this reason, when the top plate is integrally molded together with the five virtue mounting portions, it is difficult to provide a screwing portion in the virtue mounting portion in the vicinity of the burner opening and in the vicinity thereof. When the vicinity of the burner opening and the inside of the housing are not fixed, the sheet metal is heated by the heat near the burner opening of the top plate that has received the heat of the burner flame, compared to the case where the vicinity of the burner opening and the inside of the housing are fixed. A distorted thermal strain is likely to occur. For example, if the vicinity of the burner opening deformed by the heat of the flame is lifted above the burner formation part of the burner, the air necessary for combustion of the fuel gas is insufficient in the flame formation part, and the combustion performance of the burner is reduced, etc. There is a problem that there is a possibility that a malfunction will occur.

  The present invention has been made to solve such problems, and provides a stove that can prevent the use of a stove from malfunctioning even when the top plate is affected by the heat of the burner flame. The purpose is to do.

  The stove according to claim 1 of the present invention has a casing having an upper portion opened and a burner disposed therein, and a burner opening formed of metal through which the burner is inserted. A stove provided with a top plate facing the inside of the burner opening by being installed at the top, wherein the top plate has a curved portion at least including the burner opening. Features.

  The stove according to claim 2 is characterized in that, in addition to the configuration according to claim 1, the portion is a portion having a shape recessed downward with respect to a peripheral portion of the top surface of the top plate. To do.

  According to a third aspect of the present invention, in addition to the configuration according to the first or second aspect, the stove is provided at a position spaced apart from the lower surface of the top plate by a predetermined distance inside the housing. Is provided with a restricting member that restricts movement below the predetermined distance.

  According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the stove includes a plurality of the regulating members, and the plurality of regulating members are arranged at positions sandwiching the burners. .

  The stove according to claim 5 has, in addition to the configuration according to claim 4, a virtuosity mounting portion provided at a peripheral portion of the burner opening in the top plate, an annular virtually ring, A plurality of five virtue claws arranged radially from the center side of the five virtue ring, the five virtues mounted on the five virtue mounting part to support the object to be heated, and at least of the plurality of regulating members One is characterized by being arranged at a position overlapping the five virtue rings of the five virtue mounted on the five virtue mounting portion in a plan view.

  A stove according to a sixth aspect of the present invention includes, in addition to the configuration according to the fourth or fifth aspect, a virtuosity mounting portion provided at a peripheral portion of the burner opening in the top plate, an annular virtually ring, and the virtually ring A plurality of five virtue claws arranged radially outward from the center side of the five virtue rings, and equipped with the five virtues that are attached to the five virtue mounting portions and support an object to be heated, At least one of the five virtue claws is located outside the five virtue rings in a plan view and is sandwiched between two adjacent five virtue claws among the plurality of five virtue claws of the five virtues attached to the five virtue mounting portion. It is characterized in that it is arranged at a position where at least a part thereof overlaps.

  In a top plate made of metal, thermal distortion may occur at and near the burner opening affected by the heat of the burner flame. In the stove according to the first aspect, since the portion including at least the burner opening of the top plate is curved downward, the thermal strain generated in the portion including at least the burner opening is restricted to the downward displacement. For this reason, for example, it is possible to prevent an event that the burner opening deformed by the heat of the flame and the vicinity thereof are lifted upwards from the flame mouth forming portion of the burner, thereby preventing the occurrence of problems such as deterioration of the combustion performance of the burner. . Therefore, the stove according to claim 1 can prevent the use of the stove from malfunctioning even when the top plate is affected by the heat of the burner flame.

  In addition to the effect of the invention according to claim 1, the stove according to claim 2 has a shape in which a portion including at least the burner opening is depressed downward with respect to the peripheral portion of the top surface of the top plate. For example, it is possible to prevent liquid such as boiled spills produced by using a stove from spreading to the peripheral edge of the top surface of the top plate. Moreover, the malfunction by the thermal distortion of the part which contains at least the burner opening which is easy to be influenced by the heat of the flame of a burner among top plates is reduced.

  In addition to the effect of the invention described in claim 1 or 2, the stove according to claim 3 includes a regulating member inside the housing, so that the top plate is displaced downwardly due to thermal strain. It can be regulated within a predetermined distance range below the top plate. For example, when the object to be heated placed on the virtues provided on the top plate is removed from the five virtues, the state in which the bending is eliminated from the state in which the top plate is bent and displaced downward by the load of the object to be heated. Migrate to Depending on the degree of restoration of the bending due to the load of the object to be heated, there is a possibility that abnormal noise may be generated due to the reaction of the bending being restored. If the downward deflection of the top plate is regulated to a predetermined range by the regulating member, the occurrence of such an event caused by thermal distortion and an event caused by the deflection caused by the load of the object to be heated is reduced. The stove can be used safely without causing discomfort to the person.

  In addition to the effect of the invention according to claim 3, the stove according to claim 4 is directed downward due to thermal distortion of the peripheral portion of the top of the top plate that is particularly susceptible to the heat of the burner flame. This displacement can be regulated within a predetermined distance range by a plurality of regulating members arranged at positions sandwiching the burner. Since the regulating member regulates the downward displacement of the top plate at both the positions where the burners are sandwiched between each other, for example, the five virtues placed near the burner opening on the top surface of the top plate are caused by thermal distortion of the top plate. Inclination can be prevented.

  In the stove according to claim 5, in addition to the effect of the invention according to claim 4, the regulating member is such that the top plate at the position corresponding to the five virtue rings of the five virtue mounting portions is bent downward. Can be controlled within a predetermined distance range. Even when the top plate at the position corresponding to the Gotoku ring bends downward, the restricting member can support the Gotoku ring from the lower side via the corresponding top plate. This can prevent the situation where the virtues are greatly inclined with respect to the previous state.

  In addition to the effect of the invention according to claim 4 or 5, the stove according to claim 6 is at least one area outside the five virtue rings in a plan view and sandwiched between two adjacent five virtue claws. Since the restricting portion is arranged so that the portions overlap, displacement of the top plate in the vicinity of the Gotoku ring is prevented. This prevents a situation where the virtues are greatly inclined with respect to the state before the top plate is bent, so that the user can safely use the stove.

1 is a perspective view of a stove 1; FIG. 3 is a perspective view of a top plate 3. FIG. It is a perspective view of Gotoku 50. It is a perspective view which shows the state in which the virtues 50 were mounted | worn by the virtues mounting part 33. FIG. It is explanatory drawing which represented typically the II line arrow direction cross section shown in FIG. 3 is a perspective view of a housing 2. FIG. It is explanatory drawing which shows arrangement | positioning in planar view of the virtues 50, the 1st control part 71, and the 2nd control part 72. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the top, bottom, left and right, front and back indicated by arrows in the figure are used. The table stove 1 shown in FIG. 1 (hereinafter simply referred to as the stove 1) is a table stove, but may be a built-in stove or the like.

  The structure of the stove 1 will be described with reference to FIGS. 1 and 2. The stove 1 includes a housing 2 and a top plate 3 that constitute an instrument body. The housing | casing 2 is metal made in the substantially rectangular parallelepiped shape provided with the opening part 21 (refer FIG. 6) on the upper surface. A pair of left and right gas burners 5 and 5 are arranged inside the housing 2. The top plate 3 is formed by pressing a sheet metal. At least the upper surface of the top plate 3 is coated with enamel to prevent sticking of dirt due to spilled liquid or the like. The top plate 3 closes the opening 21 of the housing 2 and is fixed to the upper portion of the housing 2. The top plate 3 is formed with a pair of left and right substantially circular burner openings 4 and 4, and the gas burner 5 protrudes upward from the housing 2 side when the top plate 3 is installed on the top of the housing 2. Facing the center of each burner opening 4. Five virtues 50 and 50 are respectively arranged around the gas burners 5 and 5. In each upper part of the virtues 50, 50, an object to be heated (not shown) such as a cooking utensil including a pan, a frying pan or the like is placed.

  The gas burner 5 includes a burner body 5D (see FIG. 5) disposed inside the housing 2, and a burner head 5B installed on the upper part of the burner body 5D and having a plurality of flame ports 5A formed on the outer periphery. . Since the flame outlet 5A is disposed above the burner openings 4 and 4, the burner head 5B can sufficiently secure the air necessary for the combustion of the fuel gas. In the center of the burner head 5B, there is provided a pan sensor 5C for storing the thermistor therein and detecting the temperature of the object to be heated, such as the pan bottom temperature. Although not shown, an ignition electrode for performing ignition by discharge and a thermocouple for detecting the presence or absence of a flame are provided in the vicinity of the flame outlet 5A behind the burner head 5B.

  A grill door 24 is provided at the front center of the housing 2. A glass window 25 is provided on the front surface of the grill door 24. The user of the stove 1 can visually recognize the degree of baking of the cooking object inside the grill cabinet 20 (see FIG. 6) installed inside the housing 2 through the glass window 25. A handle 26 is provided below the glass window 25 so as to protrude forward. The user of the stove 1 can open and close the grill cabinet 20 by holding the handle 26 and pulling out the grill door 24. An exhaust port cover 8 having a plurality of exhaust holes is installed behind the top plate 3. The exhaust port cover 8 is a cover member that covers a grill exhaust port 7 (see FIG. 2) described later from above.

  On the right side of the grill door 24, there are provided ignition switches 11, 12, fire power adjustment knobs 16, 17, etc., respectively. The ignition switch 11 is provided adjacent to the right side of the grill door 24 and performs ignition / extinguishing operation of the right gas burner 5. When the ignition switch 11 is pressed, primary air and fuel gas are supplied to the burner body, and the mixture is mixed and flows out from the flame port 5A of the burner head 5B. At the same time, a controller (not shown) provided in the housing 2 discharges the ignition electrode to ignite the air-fuel mixture, and a flame is formed on the outer periphery of the burner head 5B. Further, when the ignition switch 11 is operated with the gas burner 5 being ignited, the gas burner 5 is extinguished. The ignition switch 12 is provided on the right side of the ignition switch 11 and performs an ignition / extinguishing operation of an upper burner and a lower burner (not shown) provided in the grill cabinet 20.

  The thermal power adjustment knob 16 is provided above the ignition switch 11 and adjusts the thermal power of the right gas burner 5 in accordance with a sliding operation in a substantially horizontal direction. The thermal power adjustment knob 17 is provided above the ignition switch 12, and includes an upper fire adjustment knob 17A and a lower fire adjustment knob 17B. The upper-fire adjustment knob 17A and the lower-fire adjustment knob 17B adjust the heating power of the upper and lower burners of the grill cabinet 20. On the left side of the grill door 24, an ignition switch 13, a thermal power adjustment knob 18, a battery case 14, and the like are provided. The ignition switch 13 is provided adjacent to the left side of the grill door 24 and performs ignition / extinguishing operation of the left gas burner 5. The thermal power adjustment knob 18 is provided above the ignition switch 13 and adjusts the thermal power of the left gas burner 5. The battery case 14 is provided on the left side of the ignition switch 13 and stores, for example, two dry batteries (not shown) as the power source of the stove 1.

  With reference to FIG. 2, the structure of the periphery of the top plate 3 and the burner openings 4 and 4 in the top plate 3 will be described. The top plate 3 is formed in a rectangular shape having a size corresponding to the upper surface opening of the housing 2. On the rear side of the top surface 31 of the top plate 3, there is provided a grill exhaust port 7 that is a substantially rectangular hole extending left and right. The grill exhaust port 7 communicates with the aforementioned grill cabinet 20 and exhausts the inside of the grill cabinet 20. On both the left and right sides of the grill exhaust port 7, a plurality of holes 7 </ b> B for positioning the exhaust port cover 8 are provided.

  On the outer edge of the top plate 3, an outer peripheral portion 39 is provided in which a sheet metal extended from the upper surface 31 is folded downward so as to follow the outer periphery of the upper portion of the housing 2. The top plate 3 is disposed on the top of the housing 2 and is fixed to the housing 2 by screws at a plurality of predetermined positions on the outer peripheral portion 39.

  Near the center of the upper surface 31 of the top plate 3, there is provided a central recess 32 that includes the burner openings 4 and 4 and is recessed one step below the upper surface 31. In the present embodiment, the central recess 32 is formed integrally with the top plate 3 by pressing a sheet metal. Since the center recessed part 32 is provided below the upper surface 31, it can catch the spillage which arises, for example in use of the stove 1. FIG. As a result, the stove 1 can prevent boiled spillage from flowing out to the upper surface 31 or from the upper surface 31 and the outer peripheral portion 39 toward the housing 2. Since the stove 1 is not provided with the screwing part for fixing the top plate 3 to the housing | casing 2 in the upper surface 31 and the center recessed part 32, the beauty | look of the top plate 3 seen from the upper side is maintained. In addition, since the stove 1 is provided with a screw-fastening portion on the outer peripheral portion 39 that is not easily subjected to spillage, liquid such as spillage is difficult to enter through the gaps in the screw holes. Dirt, rust, etc. are unlikely to occur inside the housing 2.

  In the central recess 32, the burner openings 4, 4 and the peripheral part thereof have the same configuration. On the peripheral edge of the burner opening 4, a five virtue mounting portion 33 is provided. The virtues mounting part 33 is a part provided for arranging the virtues 50 on the top plate 3. In addition, the five virtue mounting portions 33 cover the periphery of the burner opening 4 from above, thereby preventing the boiling from entering the housing 2 through the gap between the burner opening 4 and the gas burner 5. In the present embodiment, the five virtue mounting portions 33 are integrally formed on the top plate 3 by pressing a sheet metal.

  The five virtue mounting part 33 includes an annular part 332, an electrode insertion part 334, a thermocouple insertion part 335, and recesses 336, 337 and 338. The annular portion 332 is an annular flat portion that protrudes upward with respect to the central recess 32 and surrounds the peripheral edge of the burner opening 4.

  The electrode insertion portion 334 and the thermocouple insertion portion 335 are portions through which the ignition electrode and the thermocouple are inserted from the lower surface side to the upper surface side of the annular portion 332, and correspond to the above-described installation positions of the ignition electrode and the thermocouple. Is provided. The electrode insertion part 334 and the thermocouple insertion part 335 are provided in a shape in which the rear part of the burner opening 4 is widened toward the rear side and the diagonally right rear side of the annular part 332, respectively. It is a continuous dent.

  The recesses 336, 337, and 338 receive each of three protrusions 6 (see FIG. 3), which will be described later, provided on the Gotoku ring 51 fitted on the outer periphery of the annular part 332, and It is a part for positioning the virtues 50 with respect to it. Each of the recesses 336, 337, and 338 is formed in a substantially U shape in plan view that is recessed from the radially outer side to the inner side of the annular portion 332. The recesses 336, 337, and 338 are arranged at intervals of 120 degrees in the circumferential direction with respect to the center of the burner opening 4 in the annular part 332, and the recesses 336 are arranged in front of the annular part 332. ing.

  The structure of the five virtues 50 will be described with reference to FIG. The five virtues 50 mainly include the five virgin rings 51 and the five virgin claws 52A to 52F. The Gotoku ring 51 has an annular shape made of a heat-resistant metal wire. The virtuosity ring 51 is a portion that is attached to the virtues mounting part 33 so as to surround the outer peripheral part of the annular part 332 when the virtues 50 are placed in the central recess 32.

  The five virtue claws 52 </ b> A to 52 </ b> F are made of a metal having a substantially U shape that opens toward the inside of the gort ring 51 and having heat resistance. The five virtue claws 52 </ b> A to 52 </ b> F are erected radially on the five virtue ring 51 with the center of the five virtue ring 51 as a reference, and support an object to be heated placed on the five virtue 50 on the lower side. The five virtue claws 52A to 52F are arranged at intervals of 60 degrees in the circumferential direction with the center of the five virtue ring 51 as a reference. Therefore, the five virtue claws 52 </ b> A and the five virtue claws 52 </ b> D, the five virtue claws 52 </ b> B and the five virtue claws 52 </ b> E, and the five virtue claws 52 </ b> C and the five virtue claws 52 </ b> E are opposed to each other in the five virtue rings 51.

  The five virtue claws 52 </ b> A to 52 </ b> F are attached to the five virtue rings 51 at the lower ends of the respective opening portions. Projections 6 projecting from the inner edge portion 511 of the virtually ring 51 toward the radially inner side of the virtually ring 51 are formed at the end portions of the virtuosity claw 52A, 52C, 52E corresponding to the attachment positions of the virtuosity ring 51. . The lower end portion 53 of the end portion of the five virtue claws 52 </ b> A to 52 </ b> F arranged on the outer side in the radial direction of the five virtue ring 51 is arranged at substantially the same position as the lower edge portion of the five virtue ring 51.

  With reference to FIG. 4, the mounting | wearing of the virtues 50 with respect to the virtues mounting part 33 is demonstrated. The virtuosity ring 51 is attached to the outer periphery of the annular portion 332, so that the virtues 50 are attached to the virtues attachment portion 33 in the central recess 32 of the top plate 3. At this time, the virtues 50 are placed in the central recess 32 in a state where the lower edge portion of the virtually ring 51 and the lower end portions 53 of the virtues claws 52 </ b> A to 52 </ b> F are in contact with the upper surface of the central recess 32.

  When the virtuosity ring 51 is attached to the virtues mounting part 33, the virtues claws 52A, 52C, 52E fit into the recesses 336, 337, 338, respectively, so that the virtues 50 do not rotate with respect to the virtues mounting part 33. Fixed. Here, since the concave portion 336 is disposed on the front side of the virgin mounting portion 33, the five virtue claws 52 </ b> A corresponding to the protruding portions 6 that fit into the concave portion 336 are disposed so as to face the front side. The For this reason, the stove 1 can make the to-be-heated object mounted in the virtues 50 less inclined to the front side of the housing 2. In the present embodiment, the three protrusions 6 and the recesses 336, 337, and 338 of the five virtues 50 are arranged at intervals of 120 degrees in the circumferential direction in each of the five virtue rings 51 and the five virtue mounting portions 33. For this reason, every time the five virtue rings 51 are rotated by 120 degrees, the five virtue mounting portions 33 are mounted.

  The overall shape of the top plate 3 will be described with reference to FIG. In FIG. 5, in order to show the shape of the entire top plate 3 in an easy-to-understand manner, the illustration of the five virtue mounting portions 33 in the central recess 32 is omitted. The central recess 32 of the top plate 3 is formed such that the vertical position of the left and right end portions P of the central recess 32 is different from the vertical position of the central portion Q of the central recess 32. As described above, the central concave portion 32 is formed integrally with the top plate 3, and the left and right end portions P and the central portion Q of the central concave portion 32 are continuously formed by a single sheet metal. For this reason, the center recessed part 32 has the shape curved gently so that the center part Q may become the lowest part. The distance in the vertical direction between the left and right end portions P of the central recess 32 and the central portion Q is L1.

  The central concave portion 32 of the top plate 3 is a portion including the burner openings 4 and 4 and the five virtue mounting portions 33 provided at the peripheral edge of the burner opening 4. When the fuel gas is burned in the burner head 5B, a flame is formed and heat is generated by the flame. Heat from the flame is easily conducted to the burner openings 4 and 4 and the five virtue mounting portions 33 adjacent to the burner head 5B. When the heat of the flame is conducted to the virtues mounting part 33, the temperature of the virtues mounting part 33 rises. In addition, the virtues mounting part 33 is integrally formed with the central recess 32, and the heat conducted to the virtues mounting part 33 is easily conducted to the central recess 32. Both the sheet metal Gotoku mounting portion 33 and the central recess 32 may be relatively hot. In this case, due to thermal expansion of the sheet metal whose temperature has risen, the shapes of the five virtue mounting portions 33 and the central concave portion 32 may be distorted (hereinafter referred to as “thermal strain”).

  In the present embodiment, the central concave portion 32 is formed in advance in a shape curved downward with the central portion Q as the center. Therefore, when the central concave portion 32 is thermally expanded, the thermal distortion of the central concave portion 32 further increases the central concave portion 32. It tends to occur in the direction of bending downward. That is, when thermal distortion occurs in the central recess 32 including the five virtue mounting portions 33, the central recess 32 is likely to be displaced downward rather than upward. In this way, the stove 1 can prevent the peripheral portion of the burner opening 4 such as the five virtue mounting portion 33 from being displaced upward from the flame outlet 5A of the burner head 5B due to thermal strain. The stove 1 has a shape in which at least the central concave portion 32 of the top plate 3 is curved downward, so that the displacement due to the thermal distortion of the central concave portion 32 that is particularly susceptible to the heat of the flame of the gas burner 5 occurs downward. Can be regulated. If the five virtue mounting part 33 is displaced upward to cover the flame port 5A from above, the air necessary for combustion of the fuel gas may be insufficient in the vicinity of the flame port 5A. The situation can be prevented and the combustion performance of the gas burner 5 can be kept good. Accordingly, the stove 1 prevents the use of the stove 1 from being troubled even if the central recess 32 including the five virtue mounting portions 33 is affected by the heat of the flame of the gas burner 5, so that it is safe for the user. Filter 1 can be used.

  Note that the degree of thermal strain generated in the central recess 32 varies depending on the rigidity and thickness of the sheet metal used for the top plate 3 and the type of surface treatment by enamel and the like. For this reason, the length of the above-described distance L1 may be a predetermined length according to an experimental result or the like performed in advance in order to restrict the thermal distortion of the central recess 32 downward.

  The internal structure of the housing 2 will be described with reference to FIG. When the top plate 3 is removed from the housing 2, the gas burners 5, 5, the grille 20, the exhaust part 29, the grille cover 28, the two first regulating parts 71, and the two A second restricting portion 72 and the like are provided.

  The gas burners 5 and 5 are fixed to the frame members 22 and 22 by screws. The frame members 22, 22 are frameworks for extending the left and right portions of the housing 2 toward the inside of the opening 21 and fixing the burner body 5 </ b> D of the gas burners 5, 5 inside the housing 2. The grill cabinet 20 is installed in the approximate center of the housing 2 so as to be sandwiched between a pair of left and right gas burners 5 and 5. Although not shown, a grill net on which an object to be cooked is placed is provided inside the grill cabinet 20, and the above-described upper burner and lower burner are provided above and below the grill net, respectively. The exhaust unit 29 is disposed on the rear surface side of the grill cabinet 20, communicates with the inside of the grill cabinet 20 and the aforementioned grill exhaust port 7, and discharges the combustion exhaust inside the grill cabinet 20 to the outside of the stove 1.

  The grill storage cover 28 is a metal plate that is disposed between the grill storage 20 and the top plate 3 in the vertical direction and covers the upper side of the grill storage 20. The grill cabinet cover 28 can receive the heat of the grill cabinet 20 and prevent the heat of the grill cabinet 20 from being directly conducted to the top plate 3.

  Here, as described above, when thermal distortion occurs in the central concave portion 32 of the top plate 3, the central concave portion 32 may be displaced downward. The two first restricting portions 71 and the two second restricting portions 72 abut against the central concave portion 32 displaced downward due to thermal strain from the lower surface side of the central concave portion 32, and the central concave portion 32 is the first restricting portion. 71 and a member that restricts displacement further downward than the second restricting portion 72.

  The two first restricting portions 71 are provided so as to protrude upward with respect to the upper surface 281 of the grill cabinet cover 28, and are arranged one by one on the left and right sides of the grill cabinet cover 28. The two first restricting portions 71 have a predetermined width in the left-right direction and have a substantially rectangular shape in plan view extending in the front-rear direction at a substantially center in the front-rear direction of the grill cabinet cover 28. The positions of the two first restricting portions 71 in the vertical direction are predetermined positions between the upper surface 281 of the grill cabinet cover 28 and the lower surface of the central recess 32 of the top plate 3. The length in the front-rear direction of the first restricting portion 71 is longer than the length in the front-rear direction of the burner head 5B. The left first restricting portion 71 is disposed on the right side of the left gas burner 5, and the right first restricting portion 71 is disposed on the left side of the right gas burner.

  The two second restricting portions 72 are portions provided to protrude upward on the upper sides of the frame members 22, 22. The two second restricting portions 72 are formed by fixing to the frame members 22 and 22 metal plates bent at a predetermined width so as to form stepped portions protruding upward. The two second restricting portions 72 have a predetermined width in the left-right direction and have a substantially rectangular shape in plan view extending in the front-rear direction at the left and right portions of the housing 2. The positions of the two second restricting portions 72 in the vertical direction are slightly above the two first restricting portions 71 and below the lower surface of the central recess 32 of the top plate 3. In addition, since the shape of the center recessed part 32 is curving downward centering on the center part Q, the 1st control part 71 arrange | positioned inside the 2nd control part 72 in the housing | casing 2 is the 2nd control. It is arranged at a position lower than the portion 72. The length of the second restricting portion 72 in the front-rear direction is substantially the same as the length of the first restricting portion 71 in the front-rear direction. The left second restricting portion 72 is disposed on the left side of the left gas burner 5. The right second restricting portion 72 is disposed on the right side of the right gas burner.

  The left first restricting portion 71 and the left second restricting portion 72 are arranged so as to sandwich the left gas burner 5 from side to side. The right first restricting portion 71 and the right second restricting portion 72 are arranged so as to sandwich the right gas burner 5 from side to side. The distance in the left-right direction from the burner head 5B to the first restricting portion 71 is slightly longer than the distance in the left-right direction from the burner head 5B to the second restricting portion 72.

  Since the two first restricting portions 71 and the two second restricting portions 72 are arranged below the lower surface of the central recessed portion 32 of the top plate 3, the central recessed portion 32 is formed by the thermal strain. 71 and the second restricting portion 72 are prevented from being displaced downward. Since the central recess 32 is provided with the five virtue mounting portions 33, the central recess 32 when the stove 1 is used is bent due to the weight of the heated object placed on the five virtue 50 and the five virtue 50, It is in a state of being easily displaced downward. In addition, the rigidity of the central recess 32 where the sheet metal is heated due to the heat of the flame in the burner head 5B is lower than that before receiving the heat of the flame. In this case, depending on the weight of the virtues 50 and the object to be heated placed on the virtues 50, the virtues mounting portion 33 and the vicinity thereof may be displaced further downward. If the five virtue mounting portion 33 is displaced downward until the upper end portions of the five virtue claws 52A to 52F are positioned below the burner head 5B, the lower part (for example, the bottom of the pan) of the object to be heated and the burner head 5B come into contact with each other. The support of the object to be heated by 50 may become unstable. In the stove 1, the downward displacement range of the central recess 32 including the virtues mounting portion 33 is restricted to a predetermined range by the first restricting portion 71 and the second restricting portion 72. The occurrence of an unusual event is prevented. Therefore, the stove 1 can stably support the object to be heated by the five virtues 50.

  In addition, when the object to be heated is removed from above the virtues 50 in the state where the central recess 32 and the virtues mounting portion 33 are displaced downward, the central recess 32 is restored to its original shape, and the bending of the sheet metal is rapidly restored. May be. Depending on the degree of restoration of the bending of the sheet metal due to the load of the object to be heated, an abnormal noise may be generated in response to the reaction of the sheet metal returning to its original shape. Here, since the stove 1 is provided with the 1st control part 71 and the 2nd control part 72, the downward displacement of the center recessed part 32 by a thermal strain is controlled in the predetermined range. For this reason, since the stove 1 is unlikely to generate an abnormal sound when the shape is restored even if the central recess 32 is bent due to the load of the object to be heated, the stove 1 does not cause discomfort to the user of the stove 1. Can be used.

  As described above, the degree of thermal distortion generated in the central recess 32 and the degree of bending due to the load of the object to be heated vary depending on the forming material and forming method of the top plate 3. For this reason, the distance between the two first restricting portions 71 and the two second restricting portions 72 and the lower surface of the central recessed portion 32 is based on the results of experiments conducted in advance to use the stove 1 safely. It may be a predetermined distance.

  With reference to FIG. 7, the relationship of the arrangement of the virtues 50, the first restricting portion 71, and the second restricting portion 72 in plan view will be described. FIG. 7 shows the five virtues 50 mounted on the five virtue mounting portions 33 corresponding to the right gas burner 5, and the right first restricting portion 71 and the second restricting portion 72 arranged with the right gas burner 5 sandwiched between the right and left sides. Each arrangement is schematically shown. In FIG. 7, the gas burner 5, the top plate 3, and the five virtue mounting portions 33 are not shown for easy understanding of the arrangement of the five virtue 50, the first restricting portion 71 and the second restricting portion 72.

  The 2nd control part 72 is arrange | positioned in the position which overlaps with the 5 virtue ring 51 in planar view. The position of the central recess 32 that overlaps with the virtuosity ring 51 in plan view is the portion where the weight of the object to be heated placed on the virtues 50 and 50 is easily added, and thermal distortion and deformation are likely to occur when the stove 1 is used. It is. The 2nd control part 72 is arrange | positioned in the position just under the part which the thermal distortion and deformation | transformation of such a center recessed part 32 occur easily. For this reason, when thermal distortion and deformation occur in this portion of the central recess 32, the second restricting portion 72 abuts from a position directly below the position to support the central recess 32, and the second restricting portion 72 It can regulate so that it may not be displaced below. Therefore, the stove 1 can effectively prevent the downward displacement due to the thermal distortion of the central recess 32 at the position overlapping with the virtually ring 51. Thereby, since possibility that the virtues 50 will incline in the center recessed part 32 is reduced, the user of the stove 1 can use the stove 1 in comfort. In addition, the point which the 2nd control part 72 has the shape extended in the front-back direction like this embodiment has the point that the 2nd control part 72 can be arrange | positioned so that the virtually ring 51 may overlap with the part extended in the front-back direction. Is preferable.

  Moreover, the 1st control part 71 is arrange | positioned in the position which overlaps the area | region S which is the outer side of the virtuosity ring 51 in planar view, and is the area | region pinched | interposed between the virtuosity claw 52E and the virtuosity claw 52F. The five virtue claws 52E and 52F are opposed to the five virtue claws 52B and 52C arranged in the vicinity of the second restricting portion 72 in a plan view and are opposed to each other in the five virtue ring 51 with reference to the center of the five virtue rings 51. It is. The lower edge portion of the virtually ring 51 and the lower end portion 53 of the virtues claws 52A to 52F are portions to which the weight of the object to be heated placed on the virtues 50 and 50 is applied. In this embodiment, the 2nd control part 72 is arrange | positioned in the position close | similar to the five virtue claws 52B and 52C by planar view. If the first restricting portion 71 is not provided, and thermal distortion occurs in the central recess 32, the virtuosity ring 51 is inclined with the side on which the virtuosal claws 52E, 52F are disposed facing downward, and the disposition of the virtues nails 52E, 52F There is a possibility that the central recess 32 that comes into contact with the lower edge portion of the virtually ring 51 on the side to be used and the lower end portion 53 of the virtuous claws 52E and 52F is displaced downward. When the portion where the central recess 32 is in contact with the lower edge of the virtually ring 51 and the lower end portion 53 of the virtuosity claw 52E, 52F is displaced downward, the region S of the central recess 32 provided continuously to these portions is also pulled. There is a possibility of displacement downward.

  Since the 1st control part 71 is arrange | positioned in the position which overlaps with the area | region S in planar view, it can support the part corresponding to the area | region S of the center recessed part 32 which is going to be displaced below by thermal strain from the lower surface side of the said part. . Thereby, the 1st control part 71 does not displace the center recessed part 32 below the 1st control part 71 in the area | region S which is the position near the lower end part 53 of the 5 virtue ring 51 and the 5 virtue claws 52E and 52F. Can be regulated. In particular, in this embodiment, the 1st control part 71 is extended in the front-back direction to the position which overlaps with the lower end part 53 of the five virtue claws 52E and 52F in planar view. For this reason, when thermal distortion and a deformation | transformation generate | occur | produce in the part which the lower end part 53 of the 5 virtue claws 52E and 52F contact | abuts to the center recessed part 32, the 2nd control part 72 is right under the lower end part 53 of the 5 virtue claws 52E and 52F. The central recess 32 can be supported by contacting from the position. Thus, it is preferable that the 1st control part 71 is arrange | positioned in the position which overlaps with the lower end part 53 of both five virgin claws 52E and 52F in planar view. However, it is only necessary that the first restricting portion 71 is disposed at a position that overlaps at least the region S in plan view, and that the arrangement of the first restricting portion 71 overlaps the five virtue claws 52E and 52F in the plan view is an essential configuration. Absent. If the downward displacement of the central concave portion 32 in the region S corresponding to the position where the first restricting portion 71 is disposed is restricted, the lower edge portion of the virtually ring 51 and the lower end portion 53 of the virtually claws 52E and 52F are centered. This is because the portion in contact with the recess 32 is indirectly prevented from being greatly displaced downward. Therefore, by arranging the first restricting portion 71 at a position overlapping the region S in plan view, the stove 1 prevents the central concave portion 32 from being displaced downward, and the virtues 50 may be inclined in the central concave portion 32. Can be reduced.

  Such a 1st control part 71 and the 2nd control part 72 are arrange | positioned so that the center of the five virtue ring 51 may be pinched | interposed to the left and right. A gas burner 5 is disposed in the center of the virtually ring 51. Even if thermal distortion occurs in the central concave portion 32, the downward displacement of the central concave portion 32 is restricted on both the left and right sides of the gas burner 5, so that the virtually ring 51 is difficult to tilt in the left-right direction. For this reason, even if the stove 1 is used and thermal distortion and deformation occur in the central recess 32, the virtuosity ring 51 is not easily tilted to the left and right with respect to the gas burner 5, so that the user of the stove 1 can rest assured. 1 can be used.

  As described above, in the stove 1 of the present embodiment, the top plate 3 is formed by pressing a sheet metal. The burner openings 4 and 4 formed in the top plate 3 and the peripheral part of the burner opening 4 may be affected by the heat of the flame formed in the burner head 5B, and thermal distortion may occur. In the stove 1, the central concave portion 32 including the five virtue mounting portions 33 in the top plate 3 is formed in a shape curved downward with the central portion Q as the center. For this reason, the thermal distortion of the central recess 32 is likely to occur in a direction in which the central recess 32 is further bent downward. That is, the central recess 32 is easily displaced downward due to thermal strain. For this reason, the stove 1 can reduce the occurrence of an event in which the peripheral edge portion of the burner opening 4 such as the five virtue mounting portion 33 is displaced above the flame outlet 5A of the burner head 5B due to thermal strain. Therefore, even if the central recess 32 is affected by the heat of the flame of the gas burner 5, the stove 1 can prevent the use of the stove 1 and prevent the stove 1 from being used safely. Can do.

  Near the center of the upper surface 31 of the top plate 3, there is provided a central recess 32 that includes the burner openings 4 and 4 and is recessed one step below the upper surface 31. For this reason, the central recessed part 32 receives the boiled spill produced in the use of the stove 1, and the boiled spill flows out toward the upper surface 31 or flows out toward the housing 2 through the upper surface 31 and the outer peripheral part 39. Can be prevented. Moreover, since the stove 1 is formed with the central concave portion 32 in a shape curved downward with the central portion Q as the center, the central portion of the top plate 3 that is particularly susceptible to the heat of the flame of the gas burner 5 is used. The direction of thermal distortion of the recess 32 can be regulated downward. Thereby, the stove 1 can reduce the possibility that a malfunction due to thermal distortion occurs when the stove 1 is used.

  The positions of the first restricting portion 71 and the second restricting portion 72 in the vertical direction are predetermined positions below the lower surface of the central recess 32 of the top plate 3. The first restricting portion 71 and the second restricting portion 72 come into contact with the first restricting portion 71 and the first restricting portion 71 by contacting from the lower side of the central recessed portion 32 when the central recessed portion 32 is displaced downward due to thermal strain. Displacement further downward than the two restricting portions 72 can be restricted. The central recess 32 is provided with a five virtue mounting part 33, and the five virtue 50 is mounted on the five virtue mounting part 33. If the five virtue mounting part 33 is displaced downward until the upper end portions of the five virtue claws 52A to 52F are positioned below the burner head 5B, the support of the object to be heated by the five virtues 50 may become unstable. Further, in the case where thermal distortion occurs in the central recess 32, when the heated object placed on the virtues 50 is removed from the virtues 50, the deflection of the central recessed part 32 due to the load of the heated object is restored, and When the central recess 32 rebounds to its original shape, an abnormal noise is generated, which may surprise the user of the stove 1. In the stove 1, the first restricting portion 71 and the second restricting portion 72 restrict the downward displacement of the central recess 32 due to thermal distortion to a predetermined range above the first restricting portion 71 and the second restricting portion 72. Therefore, the occurrence of such an event caused by thermal distortion and an event caused by bending due to the load of the object to be heated are reduced. Therefore, the user is less likely to feel uncomfortable when using the stove 1, and can use the stove 1 safely.

  The 1st control part 71 and the 2nd control part 72 are arrange | positioned in the position which pinches | interposes the gas burner 5 right and left mutually. For this reason, even if thermal distortion occurs in the central recess 32, the downward displacement of the central recess 32 is restricted to a predetermined range on both the left and right sides of the gas burner 5. The first restricting portion 71 and the second restricting portion 72 restrict the downward movement of the central recess 32 in the peripheral portion of the burner opening 4 at both positions where the gas burner 5 is sandwiched between each other. It is hard to tilt.

  Since the 2nd control part 72 is arrange | positioned in the position which overlaps with the virtuosity ring 51 in planar view, the center recessed part 32 in the position which overlaps with the virtuosity ring 51 does not displace below the 2nd control part 72 by thermal strain. Can be regulated. Thereby, since possibility that the virtues 50 will incline in the center recessed part 32 is reduced, the user of the stove 1 can use the stove 1 in comfort.

  Since the lower edge portion of the virtuosity ring 51 and the lower end portion 53 of the virtues claws 52A to 52F are portions to which the weights of the objects to be heated placed on the virtues 50 and virtues 50 are applied, May be displaced downward due to thermal strain. Moreover, the part corresponding to the area | region S of the center recessed part 32 provided in a row from the lower edge part of the 5 virtue ring 51 and the lower end part 53 of 5 virtue claws 52A-52F may also be displaced below by thermal strain. Since the 1st control part 71 is arrange | positioned in the position which overlaps with the area | region S in planar view, the possibility that the virtues 50 incline in the center recessed part 32 can be reduced.

  In the present embodiment, the stove 1 corresponds to the “stove” of the present invention. The gas burner 5 corresponds to the “burner” of the present invention. The housing 2 corresponds to the “housing” of the present invention. The burner opening 4 corresponds to the “burner opening” of the present invention. The top plate 3 corresponds to the “top plate” of the present invention. The central recess 32 corresponds to a “main body”. The 1st control part 71 and the 2nd control part 72 are corresponded to the "control member" of this invention. The five virtue wearing part 33 corresponds to the “5 virtue wearing part” of the present invention. The 50 virtues correspond to the “5 virtues” of the present invention. The five virtue rings 51 correspond to the “five virtue rings” of the present invention. The five virtue claws 52A to 52F correspond to the "five virtue claws" of the present invention.

  In addition, this invention is not limited to the said embodiment, A various change is possible. For example, in the above embodiment, the central recess 32 is provided on the upper surface 31 of the top plate 3, but the present invention is not limited to this. For example, the top surface of the top plate 3 including the portion where the central recess 32 is not provided and the five virtue mounting portions 33 are provided may be formed at the same height as the top surface of the other portion of the top plate 3. In this case, the entire upper surface 31 of the top plate 3 may be formed in a shape curved downward.

  The arrangement of the restricting members exemplified in the first restricting portion 71 and the second restricting portion 72 is not limited to the above embodiment. For example, both of the two regulating members arranged at positions where the gas burner 5 is sandwiched between the left and right may be arranged at positions where the five virtue rings 51 overlap. Alternatively, one of the two regulating members arranged at a position sandwiching the gas burner 5 on the left and right is arranged at a position overlapping the region S, the other is outside the virtuosity ring 51 in plan view, and the virtuosity claw 52B and the virtuosity claw It may be arranged at a position overlapping with a region sandwiched between 52C.

  In the above embodiment, the gas burners 5, 5, the two first restricting portions 71, and the two second restricting portions 72 are provided in the stove 1, and one first restricting portion 71 and one first restricting portion 71 are provided. Two restricting portions 72 are arranged so as to sandwich one gas burner 5 therebetween. In other words, one first restricting portion 71 and one second restricting portion 72 are provided for each gas burner 5, but the relationship between the number of the gas burner 5 and the first restricting portion 71 and the second restricting portion 72. Is not limited to this. For example, the arrangement of the gas burners 5 and 5 and the second restricting portion 72 is as in the above embodiment, and only one first restricting portion 71 is provided at the approximate center of the grill storage cover 28. Good. Even in this case, since the first restricting portion 71 and the second restricting portion 72 are disposed at positions where the gas burner 5 is sandwiched between the left and right, the lower side due to the thermal distortion of the central recess 32 on both the left and right sides sandwiching the gas burner 5. Therefore, the virtues 50 can be hardly tilted left and right with respect to the gas burner 5.

  The direction in which the first restricting portion 71 and the second restricting portion 72 sandwich the gas burner 5 is not limited to the left-right direction, and the gas burner 5 may be sandwiched in other directions such as the front-rear direction.

  In the embodiment described above, the first restricting portion 71 disposed on the inner side of the second restricting portion 72 in the housing 2 in accordance with the shape of the central recess 32 curved downward so that the central portion Q is located at the lowest position. However, the first restricting portion 71 and the second restricting portion 72 may be provided at substantially the same height. The positions of the first restricting portion 71 and the second restricting portion 72 in the vertical direction may be appropriately adjusted according to the degree of curvature of the central recessed portion 32 and the degree of downward displacement due to thermal strain in the central recessed portion 32.

  In the said embodiment, although both the 1st control part 71 and the 2nd control part 72 have the longitudinal shape extended in the front-back direction, the shape of the 1st control part 71 and the 2nd control part 72 is restricted to this. I can't. In the above embodiment, the lower end portion 53 of the five virtue claws 52F and the lower end portion 53 of the five virtue claws 52E are arranged so as to overlap with the front portion and the rear portion of the first restricting portion 71 in plan view. For example, two first restricting portions 71 arranged in front and rear at substantially the same position in the left-right direction are provided, the first restricting portion 71 on the front side, the lower end portion 53 of the virtuosity claw 52F, the first restricting portion 71 on the rear side, Each of the lower end portions 53 of the five virtue claws 52E may be arranged so as to overlap in a plan view. A plurality of first restricting portions 71 may be scattered at positions overlapping the region S in plan view.

  For example, the 2nd control part 72 may be provided in the circular arc shape which has a curvature radius substantially the same as the Gotoku ring 51 in planar view. In this case, the second restricting portion 72 can restrict the thermal distortion of the central recessed portion 32 at the position overlapping the virtually ring 51 along the shape of the virtually ring 51. As described above, the first restricting portion 71 and the second restricting portion 72 may have various shapes capable of restricting the downward displacement of the central recessed portion 32, and the number of the first restricting portion 71 and the second restricting portion 72 may also cause the downward displacement of the central recessed portion 32. It may be various numbers that can be regulated.

  In the said embodiment, when the virtues 50 are mounted | worn with the virtues mounting part 33, it forms so that the center recessed part 32 may be touched in the lower edge part of the virtuosity ring 51, and the lower end part 53 of 5 virgin claws 52A-52F. The shape of the virtues 50 is not limited to this, and for example, the entire lower edge of the virtues claw 52A to 52F is arranged at substantially the same position in the vertical direction as the lower edge of the virtuosity ring 51, The entire edge may be formed so as to contact the central recess 32.

DESCRIPTION OF SYMBOLS 1 Stove 2 Case 3 Top plate 4 Burner opening 5 Gas burner 32 Central recessed part 33 Gotoku mounting part 50 Gotoku 51 Gotoku rings 52A-52F Gotoku nail 71 1st control part 72 2nd control part

Claims (6)

A housing in which an upper part is opened and a burner is disposed inside;
A stove that is made of metal, has a burner opening through which the burner is inserted, and has a top plate that is installed at the top of the housing so that the burner faces the inside of the burner opening,
The top plate is characterized in that a portion including at least the burner opening is curved downward.   The stove according to claim 1, wherein the portion is a portion having a shape recessed downward with respect to a peripheral portion of the top surface of the top plate.   A restriction member is provided in the inside of the housing at a position spaced apart from the lower surface of the top plate by a predetermined distance, and restricts the top plate from moving below the predetermined distance. The stove according to claim 1 or 2. A plurality of the regulating members;
The stove according to claim 3, wherein the plurality of regulating members are arranged at positions sandwiching the burners. Gotoku mounting part provided at the peripheral edge of the burner opening in the top plate,
A five-virtual ring that includes an annular five-virtual ring and a plurality of five-virtual claws arranged radially from the center side of the five-virtual ring to the outside in the five-virtual ring, and is attached to the five-virtual mounting part to support an object to be heated. And
5. The stove according to claim 4, wherein at least one of the plurality of restricting members is disposed at a position overlapping with the five virtue rings of the five virtue mounted on the five virtue mounting portion in a plan view. . Gotoku mounting part provided at the peripheral edge of the burner opening in the top plate,
A five-virtual ring that includes an annular five-virtual ring and a plurality of five-virtual claws arranged radially from the center side of the five-virtual ring to the outside in the five-virtual ring, and is attached to the five-virtual mounting part to support an object to be heated. And
At least one of the plurality of restricting members is outside the five virtue rings in a plan view, and two adjacent five virtue claws of the five virtue claws of the five virtue mounted on the five virtue mounting portions The stove according to claim 4 or 5, wherein the stove is arranged at a position where at least a part thereof overlaps a region sandwiched therebetween.

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