JP5525908B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device that heats food with a high frequency or a heater.

  Conventionally, in this type of heating cooker, various accessories for supporting the food in the heating chamber have been proposed.

  The thing shown in patent document 1 is equipped with a square plate and a grille as an accessory for supporting a foodstuff in a heating chamber, puts a square plate on the tray receiving shelf of a heating chamber, and puts a grille on the square plate. It describes what to use.

JP 7-217912 A

  In the cooking device shown in Patent Document 1, in a microwave oven equipped with a square plate and a grill net, a square plate is placed on a tray tray in the heating chamber and the grill plate is placed on the square plate. Therefore, the position of the square dish and grill is not fixed with respect to the square dish. For this reason, the amount of movement of the grille on the square plate is large, and it has been necessary to work with caution when taking out the cooking at the end of cooking.

The present invention has been made to solve the above-mentioned drawbacks. In claim 1, a heating chamber for storing food, a magnetron for heating the food at high frequency, and a porcelain product placed on the bottom surface of the heating chamber . The table plate and a metal square dish on which the food is placed. The table plate includes a flat portion, an edge that rises around the flat portion, the flat portion, and the edge portion. An angled portion that connects, and the square plate is widened and inclined to the outside of the corner plate on the left and right back sides, and the R shape of the grounding portion is the same as the corner of the square plate. A pair of resin leg mounting parts integrally having a fixed leg part, and a metal wire provided on the back side of the square plate between the fixed leg parts of the leg mounting part so as to be freely opened and closed to the table plate. a leg grounding portion is processed into a substantially trapezoidal shape inclined spread outward of the angle plates When the leg portion of the square plate is opened and placed on the table plate by the leg portion, the position of the leg portion is determined in the inclined portion of the table plate, the leg portion is closed and the leg portion is closed. When the fixed leg is placed on the table plate, the position of the fixed leg is determined within the inclined portion of the table plate.

  In Claim 2, The distance of the right-and-left of the grounding part of the said leg part in the state which opened the said leg part is larger than the distance between the right-and-left edge part of the said table plate, and the said square plate is attached to the said table plate by the said leg part. When placed, the leg portion is moved inward by the inclined portion inside the edge portion, and the position is determined at the four corners inside the edge portion of the table plate.

  According to a third aspect of the present invention, the fixed leg portion is provided with an R-shaped grounding portion that is substantially the same as the corners R of the four corners of the square plate, and the R-shaped end portion of the grounding portion of one fixed leg portion and the other The two end portions of the table plate are in contact with two adjacent sides of the table plate, and the positions of the four fixed leg portions are determined at the four corners inside the edge portion of the table plate.

  According to claim 1, when pulling out the table plate on which the heated plate is placed from the heating chamber, the plate is fixed so that it does not move left and right and back and forth on the table plate by the leg or the fixed leg. Therefore, there is no unexpected movement of the plate due to vibrations when it is pulled out, and the table plate can be pulled out without anxiety.

  According to claim 2, also in the leg portion of the metal wire rod, the distance between the left and right of the grounding portion of the leg portion in the state where the leg portion is opened is larger than the distance between the left and right edge portions of the table plate, When placed on the table plate, the leg portion is moved inward by the inclined portion on the inner side of the edge portion, and the positions are determined at the four corner portions on the inner side of the edge portion of the table plate.

  According to the third aspect, not only can the design be unified, but also the R-shaped corner portion which is excellent in terms of manufacturing or cleaning performance with a table plate formed of a material such as porcelain, R-shaped grounding portions that are substantially the same as the corners R of the four corners of the dish are provided, and two locations, the R-shaped end portion and the other end portion of the grounding portion of one fixed leg, are adjacent to each other on the table plate. The side comes into contact with the side, and the positions are determined at the four corners inside the edge of the table plate by the four fixed legs.

The perspective view which looked at the main part of the cooking-by-heating machine of one example from the front side. AA sectional drawing of FIG. The perspective view of the state which removes the outer frame of the main body of the heating cooker of one Example, opens a door, and can see the inside of a main body. The perspective view which mounted the square plate of the heating cooker on the table plate by ((a) leg part, (b) fixed leg part). The heating chamber horizontal sectional view in the state where the table plate and the square dish were placed in the heating chamber of the heating cooker. The heating chamber front view of the state which mounted the table plate and the square plate by the ((a) leg part, (b) fixed leg part) in the heating chamber of the heating cooker. BB sectional drawing of FIG. 6 ((a) leg part, (b) fixed leg part). The bottom view of the state which opened the leg part of the square plate of the heating cooker of one Example. (A) is the A section enlarged view of FIG. 8, (b) is PP sectional drawing of (a).

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  1 to 3, the main body 1 of the heating cooker puts food to be heated in the heating chamber 28, and cooks the food using high frequency or the heat of the heater.

  The door 2 opens and closes to put food in and out of the heating chamber 28. By closing the door 2, the heating chamber 28 is hermetically sealed to prevent leakage of high frequency used when heating the food, and the heat of the heater This makes it possible to heat efficiently.

  The handle 9 is attached to the door 2 and facilitates opening and closing of the door 2, and has a shape that can be easily grasped by a hand.

  The glass window 3 is attached to the door 2 so that the state of food being cooked can be confirmed, and uses glass that can withstand high temperatures due to heat generated by a heater or the like.

  The input means 71 is provided on the operation panel 4 below the front surface of the door 2 and has an operation section 6 for inputting a heating means such as high-frequency heating or heater heating, a high-frequency output or heating time as heating intensity, It is comprised with the display part 5 which displays the content input from the operation part 6, and the progress state of cooking.

  The outer frame 7 is a cabinet that covers the upper surface and the left and right side surfaces of the main body 1 of the heating cooker.

  The rear plate 10 forms the rear surface of the outer frame 7. An external exhaust duct 18 is attached to the upper part of the rear plate 10, and steam discharged from food and internal components of the main body 1 are installed inside the external exhaust duct 18. An exhaust hole 36 for discharging cooling air (waste heat) 39 after cooling is provided.

  The external exhaust duct 18 discharges the cooling air 39 that has passed through the exhaust hole 36 to the outside of the main body 1. Exhaust air is discharged from the external exhaust port 8 of the external exhaust duct 18, and the exhaust discharge direction is the main body 1. The air is exhausted to the upper side and to the front side.

  By directing the exhaust direction toward the upper side and the front side, the wall surface is not soiled by the exhaust even when the rear surface is brought close to the wall surface.

  The machine room 20 is provided in a space portion between the heating chamber bottom face 28a and the bottom plate 21 of the main body 1. On the bottom plate 21, a magnetron 33 for heating food, a waveguide 47 connected to the magnetron 33, A control board 23 incorporating control means for controlling heating means, heating time, and the like, various components described later, a fan device 15 for cooling these various components, and the like are attached.

  The heating chamber bottom surface 28a has a substantially concave central portion, in which the rotating antenna 26 is installed, and the high frequency energy radiated from the magnetron 33 is the waveguide 47 and the output shaft 46a of the rotating antenna driving means 46. Flows into the lower surface of the rotating antenna 26 through the opening 47a, through which it is diffused and radiated into the heating chamber 28. The rotating antenna 26 is connected to the output shaft 46 a of the rotating antenna driving means 46.

  The fan device 15 is connected to a cooling motor attached to the bottom plate 21, and the cooling air 39 generated by the fan device 15 can change the self-heating magnetron 33 in the machine room 20 and the high-frequency output of the magnetron 33. The inverter board 22 on which the inverter power source is mounted, the weight detection means 25 and the like are cooled, and flows between the outside of the heating chamber 28 and the outer frame 7 and between the hot air case 11a and the rear plate 10, and the outer frame 7 The air passes through the exhaust hole 36 while cooling the rear plate 10 and is discharged from the external exhaust port 8 of the external exhaust duct 18.

  A hot air unit 11 is attached to the rear of the heating chamber 28, and a hot air fan 32 that efficiently circulates the air in the heating chamber 28 is attached in the hot air unit 11. A hot air intake hole 31 and a hot air blowing hole 30 are provided.

  The hot air fan 32 rotates by driving a hot air motor 13 attached to the outside of the hot air case 11 a and heats the air circulating in the hot air heater 14.

  An upper heater 12 is attached to the back side of the top surface of the heating chamber 28. The upper heater 12 is formed in a flat shape by wrapping a heater wire around a mica plate, pressing and fixing the mica plate against the back side of the top surface of the heating chamber 28, and heating the top surface of the heating chamber 28 to radiate heat to the food in the heating chamber 28. It is something to bake.

  Next, steam cooking will be described. Steam cooking is a cooking method in which steam is applied to the food placed on the table plate 24, the food is covered with a water film, and the food is heated.

  In order to perform steam cooking, as shown in FIG. 1, a detachable tank 50 is provided under the heating chamber 28, and water supplied from the pipe 53 is sucked up by the water supply means 59 through the pipe 51. The steam generating means 52 for heating the steam to generate steam is provided. The steam generating means 52 is provided outside the heating chamber side surface 28 c and provides a steam jet port 52 a to the heating chamber 2.

  The water supply means 59 and the steam generation means 52 are controlled by the control board 23, and steam cooking of food can be performed by supplying steam at a desired temperature to the heating chamber 28.

  Further, steam can be generated by the steam generating means 52 and cooking can be performed by steam by a combination operation of microwave heating and grill heating.

  Furthermore, steam can be generated by the steam generating means 52, and the steam is further heated to a high temperature by the hot air heater 14 and the blower fan 32 of the hot air unit 11 to generate superheated steam, and cooking can be performed with the superheated steam.

  In addition, on the left and right inner surfaces of the heating chamber 28, a plurality of shelves 27 formed in a convex shape are provided so as to face each other, and a table plate 24 (to be described later) can be placed on the shelves 27. It has become. In FIG. 3, the shelf 27 is provided in three stages, ie, upper, middle, and lower, but may have two stages of upper and lower.

  Further, the heating chamber bottom surface 28a is provided with a plurality of weight detection means 25, for example, a right weight sensor 25a, a left weight sensor 25b on the front left and right, and a back weight sensor 25c on the rear center. A table plate 24 is placed on the weight detection means 25.

  The table plate 24 is for placing food, has heat resistance so that it can be used for both heater heating and high-frequency heating, has high-frequency permeability, and has no sanitary problems. It is molded with the material.

  In addition, the table plate 24 has substantially the same width dimension and depth dimension of the heating chamber bottom surface 28a of the heating chamber 28, and includes an edge portion 24a that rises around. As shown in FIG. 4, the flat part 24d and the edge part 24a on which foods are placed are connected by an inclined part 24c. Furthermore, the corner | angular part where the adjacent inclined part 24c of 2 sides crosses is R shape, and this corner | angular part has four corners and is the four corner corner | angular part 24b. This is because the table plate 24 is made of porcelain and has a manufacturing point and a shape for improving the cleaning property.

  Further, when the heating chamber becomes hot, such as grill cooking, the table plate 24 is dragged from the heating chamber 28 to the inner upper surface of the door 2 when cooking is finished, and the heated food 100 is taken out. The table plate 24 is easily attached to and detached from the upper portion of the weight detecting means 25 described above.

  Next, the square plate 101 will be described with reference to FIGS.

  In FIG. 4, a square dish 101 is composed of a food placing portion 101a for placing food and an outer peripheral portion 101e formed integrally around the food placing portion 101a.

  5 and 6 (a) and 6 (b), the square plate 101 is smaller than the heating chamber bottom surface 28a of the heating chamber 28, and the lateral width of the outer peripheral portion 101e is provided on the left and right by protruding the heating chamber side surface 28c of the heating chamber 28. It is smaller than the distance of the shelf 27 and is not used by being placed on the shelf 27. On the shelf 27, another accessory dish or table plate 24 is placed and used.

  In FIG. 4, the food placing portion 101a of the square dish 101 is formed of metal (for example, aluminum), and a heating element 101p (shown in FIG. 8) is attached to the lower surface. Both the method of cooking the food placing portion 101a at a high temperature by heating the heating element by high-frequency heating by the magnetron 33 and the heating by the upper heater 12, and the square plate 101 with respect to the heating chamber 28 as described above. Therefore, the high frequency heating radio wave from the magnetron 33 is introduced from the upper side of the heating chamber 28 to the food placing portion 101a on the upper surface of the square plate 101, so that the high frequency heating can be used.

  Moreover, it attaches to the back surface of the outer peripheral part 101e on either side of the square plate 101 so that the leg part 101b which supports the square plate 101 can be opened and closed by the leg attachment component 101c.

  The leg portion 101b is formed by processing a metal wire into a substantially U shape so that the square plate 101 can be supported by the left and right legs, and both ends of the substantially U shape have a high heat resistance temperature such as PPS resin (polyphenine). A leg mounting component 101c made of sulfide resin) is fixed to the inside of the outer peripheral portion 101e of the square plate 101 so as to be freely opened and closed.

  FIG. 8 shows the bottom surface of the square plate 101. Fig.9 (a) is the A section enlarged view shown in FIG. 8, FIG.9 (b) is PP sectional drawing of (a).

  As shown in FIG. 8, leg attachment parts 101 c are provided on the left and right ends of the square plate 101. Therefore, as shown in FIG. 9, when the leg portion 101b is opened, the rotation shaft portion 101b1 of the leg portion 101b is sandwiched between the holder portions 101c1 of the leg attachment component 101c, and the spring of the leg portion 101b made of a metal wire material. It spreads in the front-rear direction of the holder portion 101c1 depending on the nature of the bag.

  Therefore, the rib 101c2 of the leg attachment component 101c presses the left-right direction part 101b2 of the leg part 101b in the front-rear direction, and the protrusion part 101c3 provided at the lower end of the rib 101c2 supports the left-right direction part 101b2 of the leg part 101b from below. . Further, the straight portion 101b3 of the leg portion 101b is fixed by being sandwiched between the inner rib 101c5 and the outer rib 101c4.

  By the fixing, the four straight portions 101b3 of the left and right two legs can be kept at the same angle. Therefore, as shown in FIG. 4A, the position of the ground contact portion 101 m of the leg portion 101 b is determined at the four corner portions 24 b inside the edge portion 24 a of the table plate 24 without rattling.

  Therefore, the center of the square plate 101 and the center of the table plate 24 coincide.

  As shown in FIG. 9, when the leg attachment component 101c is provided with a convex protrusion 101c3 on a path that moves when the leg 101b is opened and closed so that the leg attachment component 101c can be fixed in the open state, the leg 101b is closed. Alternatively, it can be opened and closed freely by applying a force so as to get over the protrusion when opening.

  As shown in FIG. 8, the distance between the left and right edge portions 24a of the table plate is greater than the distance between the left and right edge portions 24a of the table plate. However, as shown in FIG. 4A, when the square plate 101 is placed on the table plate 24 by the leg portion 101b, the leg portion 101b is moved inward by the inclined portion 24c inside the edge portion 24a. The position is determined at the four corners 24b inside the edge 24a.

  4 (a) and 7 (a), the width formed by the four points of the ground contact portion 101m with the leg portion 101b open is the width and depth inside the inclined portion 24c of the table plate 24. The distance in the direction is substantially equal to the depth dimension of the inclined portion 24c of the table plate 24, and the leg portion 101b of the square plate 101 is positioned at the four corner portions 24b inside the edge portion 24a of the table plate 24 without rattling.

  Next, in FIG.4 (b), the leg attachment component 101c integrally forms the two fixed leg parts 101g in the front and back. The fixed leg portion 101g has a shape in which the ground contact portion 101k is widened and inclined toward the outside of the square plate 101, and the leg mounting parts 101c are provided on the left and right sides of the square plate 101, thereby fixing the fixed leg portions 101g at the four corners of the square plate 101. Is placed.

  Further, as shown in FIG. 8, leg attachment parts 101 c are provided on the left and right ends of the square plate 101. Therefore, the grounding portion 101k of the fixed leg portion 101g formed integrally with the leg attachment component 101c is an object on the left and right sides of the square plate 101. Therefore, the left and right four legs of the fixed leg portion 101g can be kept at the same angle.

  Moreover, the fixed leg part 101g is arrange | positioned at object in the front-back direction of the leg attachment component 101c. The square plate 101 is mounted at a position where the center in the front-rear direction matches the center in the front-rear direction of the leg mounting component 101c. Therefore, the center in the front-rear direction of the square plate 101 and the center between the ground contact portions 101k of the fixed leg portion 101g coincide.

  Therefore, as shown in FIG. 4B, the position of the ground contact portion 101k of the fixed leg portion 101g is determined at the four corner portions 24b inside the inclined portion 24c of the table plate 24 without rattling.

  Therefore, even when the square plate 101 is placed on the table plate 24 with the fixed leg portion 101g, the center of the square plate 101 matches the center of the table plate 24.

  4B and 7B, the width of the ground contact portion 101k of the left and right fixed leg portions 101g and the distance in the depth direction of the ground contact portion 101k of the front and rear fixed leg portions 101g are the inclined portion 24c of the table plate 24. The fixed leg portion 101g of the square plate 101 is positioned at the four corners 24b of the edge 24a of the table plate 24 without rattling.

  The fixed leg portion 101g is provided with R-shaped grounding portions 101k substantially the same as the corners R of the four corners of the square plate 101, and the R-shaped end portion and the other end portion of the grounding portion 101k of one fixed leg portion 101g. Are in contact with two adjacent sides of the table plate 24, and the positions of the four fixed leg portions 101g are determined at the four corners 24b inside the edge 24 of the table plate 24.

  As shown in FIGS. 4 (a), 6 (a), and 7 (a), the leg 101b of the square plate 101 is opened and placed on the table plate 24, and FIGS. 4 (b) and 6 (b). 7B, the leg portion 101b of the square plate 101 is closed and the fixed leg portion 101g is placed on the table plate 24. As shown in FIG.

  As shown in FIGS. 6 and 7, even when the leg 101 b or the fixed leg 101 g is placed on the table plate 24, the outer peripheral part 101 e does not contact the shelf 27 of the heating chamber 28. The weight of the placed food is accurately transmitted to the weight detection means 25 provided on the heating chamber bottom surface 28a.

  As shown in FIG. 4B, when the square plate 101 closes the leg portion 101b, the leg portion 101b falls to the back side of the food placing portion 101a, and the convex protrusion 101c6 provided in the path (FIG. 9). The leg 101b is held closed by (shown in (a)).

  The present embodiment has the above configuration.

  Next, with respect to the operation, an example in which the leg portion 101b of the square plate 101 is opened and placed on the table plate 24 is used, and the case of chicken baked as an example is shown in FIGS. 1 to 3, 4 (a), and 6 (a). It explains using.

  First, the chicken, which is a food, is put on the soup, and the chicken with the soup is placed on the food placing portion 101a of the square plate 101 as shown in FIG. 6 (a), and the leg portion 101b is opened to open the table plate. 24.

  After closing the door 2, while watching the display unit 5 of the operation panel 4 provided on the door 2, the user operates the operation unit 6 to select the chicken cooking that is automatic cooking, and the start button for starting heating on the operation unit 6 Press (not shown) to start cooking.

  The automatic tickling operation of chicken is a series of operations from the start of heating to the end of heating, and is performed by heating with the upper heater 12 and high-frequency heating with the magnetron 33.

  When cooking is started, the weight of the food is measured by the weight detection means 25 that supports the table plate 24 (the square plate 101 and the table plate 24 are tared by the control means), and the heating time for heating the food is calculated.

  The relationship between the heating time and the weight is set in advance in the control means, and the heating time of the food to be heated is calculated according to the weight detected by the weight detection means 25.

  When heating is started, the upper heater 12 is energized, and the upper heater 12 starts to generate heat and heats the food.

  The food is heated by the upper heater 12, and then the magnetron 33 is energized and heated by the high frequency energy radiated from the magnetron 33.

  The high frequency energy radiated from the magnetron 33 is diffused by the rotating antenna 26 provided on the bottom surface of the heating chamber 28 and radiated into the heating chamber 28, and radio waves circulate from the periphery of the square plate 101. Heat the inside of the food from.

  And the heating time determined by the weight of the food is heated to finish cooking.

  After cooking, even when the table plate 24 is pulled out and the chicken, which is the object to be heated, is taken out, the table plate 24 and the square plate 101 have a sense of unity and can be pulled out of the heating chamber 28 with peace of mind.

  Next, with respect to the case where the leg portion 101b of the square plate 101 is closed and the stationary leg portion 101g is used while being mounted on the table plate 24, FIG. 1 to FIG. 3, FIG. 4 (b), FIG. A description will be given using (b).

  When the square plate 101 closes the leg portion 101b, the leg portion 101b falls to the back side of the food placing portion 101a, and the leg portion 101b is closed by a convex protrusion 101c6 (shown in FIG. 9A) provided in the path. Is kept in the state.

  First, a salt mixed with egg white is laid on the food placing portion 101a, and a straw that is a food is placed and the straw covered with the salt mixed with the egg white is hardened.

  After closing the door 2, while watching the display unit 5 of the operation panel 4 provided on the door 2, the operation unit 6 is operated to select the automatic cooking of salted salted salmon, and the operation unit 6 starts to start heating. Press the button to start cooking.

  The operation of salmon salt pot firing, which is automatic cooking, is a series of operations from the start of heating to the end of heating, and is performed by heating from the steam outlet 52a and high-frequency heating by the magnetron 33.

  When cooking is started, the weight of the food is measured by the weight detection means 25 that supports the table plate 24 (the square plate 101 and the table plate 24 are tared by the control means), and the heating time for heating the food is calculated.

  The relationship between the heating time and the weight is set in advance in the control means, and the heating time of the food to be heated is calculated according to the weight detected by the weight detection means 25.

  When heating is started, water is supplied to the steam generating means 52 by the water supply means 59, steam is generated from the steam outlet 52a, and the food is heated.

  Further, the food is heated by the high frequency energy radiated from the magnetron 33 after the salt on the surface is solidified by the heating of the steam of the steam generating means 52 and the rice cake is steamed and then the magnetron 33 is energized.

  The high frequency energy radiated from the magnetron 33 is diffused by the rotating antenna 26 provided on the bottom surface of the heating chamber 28 and radiated into the heating chamber 28, and radio waves circulate from the periphery of the square plate 101. Heat the inside of the food from.

  Further, the food placing portion 101a generates heat by the heating element on the lower surface of the food placing portion 101a of the square plate 101 to heat the inside of the food.

  And the heating time determined by the weight of the food is heated to finish cooking.

  After cooking, even when the table plate 24 is pulled out to take out the salted rice cake that is to be heated, the table plate 24 and the square plate 101 have no sense of backlash and can be pulled out of the heating chamber 28 with peace of mind.

  As described above, according to the present embodiment, when cooking is finished and the table plate 24 on which the heated plate 101 is placed is pulled out from the heating chamber 28, the plate 101 is fixed to the leg 101b or the fixed leg 101g. Because it is fixed so that it does not move back and forth on the table plate 24, there is no unexpected movement of the square plate due to vibrations when pulling out, and the table plate 24 can be pulled out without anxiety. .

  In addition, it is possible to secure a sufficient path for radio waves emitted from the bottom surface 28a of the heating chamber to pass over the square plate 101 and also around the food during the range heating.

  Moreover, since there is no part which contacts between the square plate 101 and the heating chamber 28, since a spark does not generate | occur | produce at the time of range heating, the square plate 101 can be used in comfort.

  Also, in the leg portion of the metal wire, the left and right distance of the ground contact portion 101m of the leg portion 101b in the state in which the leg portion 101b is opened is larger than the distance between the left and right edge portions 24a of the table plate, When 101b is mounted on the table plate 24, the leg portion 101b is moved inward by the inclined portion 24c inside the edge portion 24a, and the position is determined at the four corner portions 24b inside the edge portion 24a of the table plate 24.

  Furthermore, not only can the design be unified, but also in the R-shaped four corners 24b, which are excellent in terms of production or cleanliness by the table plate 24 formed of a material such as porcelain, the fixed legs 101g are square plates. An R-shaped grounding portion 101k substantially the same as the corners R of the four corners 101 is provided, and two portions of the R-shaped end portion and the other end portion of the grounding portion 101k of one fixed leg portion 101g are the table plate 24. The four fixed leg portions 101g determine the positions at the four corner portions 24b inside the edge portion 24a of the table plate 24.

24 Table plate 24a Edge 24b Four corners 24c Inclination 24d Flat part 25 Weight detection means 28 Heating chamber 100 Food 101 Square plate 101b Leg 101g Fixed leg 101m Grounding part

Claims (3)

A heating chamber for storing food, a magnetron for high-frequency heating the food, a porcelain table plate placed on the bottom of the heating chamber, and a metal square plate for placing the food,
The table plate has a flat part, an edge that stands up around the flat part, and an inclined part that connects the flat part and the edge,
The square plate is
A pair of resin legs with two fixed legs integrally formed on the left and right back sides, which are widened and inclined outward in the corners of the square plate, and the R shape of the grounding part is the same as the corners of the square plate. Mounting parts;
A substantially trapezoidal shape in which a metal wire provided on the back side of the square plate between the fixed leg portions of the leg mounting part is freely opened and closed, and a grounding portion to the table plate is widened and inclined toward the outside of the square plate. And processed leg parts,
When the leg portion of the square plate is opened and placed on the table plate with the leg portion, the position of the leg portion is determined within the inclined portion of the table plate,
When the leg portion is closed and the fixed leg portion is placed on the table plate, the position of the fixed leg portion is determined in the inclined portion of the table plate. The distance between the left and right edge portions of the table plate is larger than the distance between the left and right edge portions of the table plate.
When the square plate is placed on the table plate by the leg portion, the leg portion is moved inward by the inclined portion on the inner side of the edge portion, and the position is set at the four corners on the inner side of the edge portion of the table plate. The cooking device according to claim 1, wherein the cooking device is fixed. The fixed leg portion has an R-shaped grounding portion that is substantially the same as the corner corners R of the square plate,
Two portions of the R-shaped end and the other end of the grounding portion of the one fixed leg are in contact with two adjacent sides of the table plate, and the four fixed legs are used for the table plate. The cooking device according to claim 1, wherein the position is determined at four corners inside the edge.

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