Heating cooker

Abstract

To provide a heating cooker which can advantageously execute a re-heating of a bread.SOLUTION: A heating cooker 9 of the present invention includes: a placement member 1; a heating chamber 95A; a heating means 95E; and a control part C1. The placement member 1 can place a cooked object. The heating chamber 95A can store the placement member 1 with the cooked object therein. The heating means 95E can execute a heating operation for heating the cooked object inside the heating chamber 95A. The control part C1 controls the heating means 95E and causes the heating means 95E to execute the heating operation. The cooked object includes a bread 3. The heating operation includes a bread re-heating operation for re-heating the bread 3. During the bread re-heating operation, the control part C1 executes a drive heating and non-drive heating. In a full operation time of the bread re-heating operation, the control part C1 makes the non-drive heating time for executing a non-drive heating longer than a drive heating time for executing a drive heating.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a cooking device. [Background technology]

[0002] Patent Document 1 discloses a conventional cooking device. This cooking device includes a mounting member, a heating chamber, a heating means, and a control unit. The mounting member is capable of mounting food to be cooked. The heating chamber is capable of accommodating the mounting member together with the food to be cooked. The heating means is capable of performing a heating operation to heat the food to be cooked within the heating chamber. The control unit controls the heating means.

[0003] In this cooking device, the user places the food to be cooked on the placing member. Then, the user places the placing member with the food placed on it into the heating chamber and activates the heating means. As a result, the control unit controls the heating means and causes the heating means to perform heating operation. In this way, the cooking device heats the food to be cooked in the heating chamber. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-237464 Summary of the Invention [Problem to be solved by the invention]

[0005] In this type of cooking appliance, bread as a food to be cooked is also reheated in the heating chamber. Here, reheating bread refers to reheating finished bread that has been baked, or in other words, reheating finished bread.

[0006] However, if the bread loses too much moisture when heated, or if the bread burns unnecessarily due to the loss of moisture, the flavor of the bread may actually be reduced after reheating. Therefore, when reheating bread, a certain amount of water may be heated in the heating chamber along with the bread, and the generated steam may be used to humidify the bread while it is being heated, thereby supplying moisture to the bread.

[0007] However, if the bread is overly moistened by the large amount of steam, the bread will contain more moisture than necessary after reheating, which can lead to a deterioration in the flavor of the reheated bread.

[0008] The present invention has been made in view of the above-mentioned conventional circumstances, and an object to be achieved is to provide a cooking device that can reheat bread in an appropriate manner. [Means for solving the problem]

[0009] The cooking device of the present invention comprises: a mounting member on which an object to be cooked can be placed; A heating chamber capable of accommodating the food to be cooked and the placing member therein; A heating means capable of performing a heating operation to heat the food to be cooked in the heating chamber; a control unit that controls the heating means and causes the heating means to perform the heating operation, The food to be cooked includes bread, The heating operation includes a bread reheating operation for reheating the bread, The control unit, during the bread reheating operation, performs a driving heating operation in which the heating means is driven to heat the bread, and a non-driving heating operation in which the driving of the heating means is stopped after the driving heating operation and the bread is heated by residual heat of the heating means, The control unit is characterized in that, of the total operating time of the bread reheating operation, a non-driving heating time during which the non-driving heating is performed is made longer than a driving heating time during which the driving heating is performed.

[0010] In the cooking device of the present invention, during bread reheating operation, the control unit executes driving heating and non-driving heating. Driving heating drives the heating means to heat the bread. On the other hand, non-driving heating stops the driving of the heating means after driving heating, and heats the bread using residual heat from the heating means. Thus, in this cooking device, during bread reheating operation, the bread is heated by both driving heating and non-driving heating.

[0011] In the non-driven heating mode, the bread is heated using residual heat from the heating means, so the amount of heat applied to the bread per unit time during the non-driven heating mode is less than the amount of heat applied to the bread per unit time during the driven heating mode. Also, in the non-driven heating mode, the amount of heat applied to the bread gradually decreases over time.

[0012] In this cooker, the control unit makes the non-drive heating time for performing non-drive heating longer than the drive heating time for performing drive heating within the total operating time of the bread reheating operation. Therefore, compared to when the control unit only performs drive heating during the bread reheating operation or when the drive heating time is longer than the non-drive heating time within the total operating time of the bread reheating operation, in this cooker, even when bread is heated in the bread reheating operation, excessive loss of moisture contained in the bread is less likely to occur, and unnecessarily scorching of the bread can also be prevented.

[0013] In this way, the moisture contained in the bread is not easily lost when the bread is heated in the bread reheating operation, so with this cooking device, there is no need to heat water along with the bread during the bread reheating operation to supply moisture to the bread. As a result, with this cooking device, the bread heated in the bread reheating operation can be prevented from containing more moisture than necessary.

[0014] Therefore, the cooking device of the present invention can reheat bread in an appropriate manner.

[0015] The cooking device of the present invention may include a temperature detection means capable of detecting the temperature of the mounting member or the interior of the heating chamber as the detected temperature. The heating means may include a first heating section capable of heating the food from above, and a second heating section capable of heating the food from at least one of the side and below. Furthermore, the control section may control the first heating section and the second heating section according to the detected temperature during bread reheating operation. Preferably, the driving heating includes simultaneous driving heating, in which the first heating section and the second heating section are driven simultaneously, and independent driving heating, in which only the first heating section or the second heating section is driven.

[0016] In this case, the control unit executes simultaneous driving heating and individual driving heating, so that bread can be heated appropriately when driving heating is executed.

[0017] The cooking device of the present invention may include an input unit that allows a user to input whether bread is frozen or unfrozen. The bread reheating operation may have a first mode in which frozen bread is reheated and a second mode in which unfrozen bread is reheated. The control unit may execute the bread reheating operation in the first mode when a frozen state is input to the input unit, and execute the bread reheating operation in the second mode when an unfrozen state is input to the input unit. The control unit preferably sets the driving heating time in the first mode longer than the driving heating time in the second mode, and sets the non-driving heating time in the first mode longer than the non-driving heating time in the second mode.

[0018] Although frozen bread has a lower temperature than non-frozen bread and is more difficult to heat, in this cooking device the control unit makes the driving heating time and non-driving heating time in the first mode longer than the driving heating time and non-driving heating time in the second mode, respectively. In other words, in this cooking device, the total operating time in the first mode is longer than the total operating time in the second mode.

[0019] Incidentally, when making the total operating time in the first mode longer than the total operating time in the second mode, it is also possible to make the non-driving heating time in the first mode longer than the non-driving heating time in the second mode while making the length of the driving heating time in the first mode the same as the length of the driving heating time in the second mode.

[0020] However, as mentioned above, frozen bread is more difficult to heat than non-frozen bread, and therefore if the non-driven heating time in the first mode is excessively long, the bread is likely to be insufficiently heated. In this regard, in this cooking device, both the driven heating time and the non-driven heating time are longer in the first mode than in the second mode, so even frozen bread can be sufficiently heated.

[0021] The mounting member preferably has a main body on which the food to be cooked can be placed, and a lid attached to the main body and positioned above the food to be cooked. In this case, even if the moisture contained in the bread turns to steam when heated, the steam can be convected between the main body and the lid, allowing the bread to be humidified by the steam. As a result, in this heating cooker, even when the bread is heated in the bread reheating operation, the moisture contained in the bread is less likely to be lost, and the bread is less likely to burn. [Effects of the Invention]

[0022] According to the cooking device of the present invention, bread can be reheated in an appropriate manner. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a perspective view of a cooking device according to a first embodiment. [Figure 2] FIG. 2 is a cross-sectional view of the cooking device of the first embodiment, showing a state in which bread and a placing member are housed in a heating chamber. [Figure 3] FIG. 3 is a flow chart showing a process in which the bread reheating operation is performed in the cooking device of the first embodiment. [Figure 4]FIG. 4 is a flow chart showing a process for carrying out a bread reheating operation in the cooking device of the first embodiment. [Figure 5] FIG. 5 is a flow chart showing a process for carrying out a bread reheating operation in the cooking device of the second embodiment. [Figure 6] FIG. 6 is a flow chart showing a process for carrying out a bread reheating operation in the cooking device of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, first and second embodiments of the present invention will be described with reference to the drawings.

[0025] Example 1 As shown in Fig. 1, the gas stove 9 of the first embodiment includes a stove body 90, a top plate 99, a front panel 98, three stove burners 97, a grill device 95, and a cooking vessel 1. The gas stove 9 is an example of a "heating cooker" in the present invention. The cooking vessel 1 is an example of a "mounting member" in the present invention. The gas stove 9 of the embodiment is a so-called built-in gas stove, and is installed in a kitchen of a house.

[0026] In this embodiment, in Fig. 1, the front panel 98 side of the gas stove 9 is defined as the front, and the top panel 99 side is defined as the top, defining the front-to-back and up-to-down directions of the gas stove 9. Furthermore, when a user (not shown) of the gas stove 9 looks at the gas stove 9 while facing the front panel 98, the left side of the user is defined as the left side of the gas stove 9, defining the left-to-right direction of the gas stove 9. These front-to-back, up-to-down, and left-to-right directions are perpendicular to each other. In Fig. 2, the up-to-down and left-to-right directions of the gas stove 9 are defined corresponding to Fig. 1.

[0027] As shown in Figure 1, the stove body 90 is formed in a substantially rectangular box shape. Inside the stove body 90, a control device C1 is provided, as well as a speaker 4 as a notification means. The control device C1 is an example of the "control unit" of the present invention. The control device C1 will be described in detail later.

[0028] The top plate 99 is disposed above the stove body 90 and covers the upper surface of the stove body 90. In addition, an exhaust port 99H is provided at the rear of the top plate 99.

[0029] The front panel 98 is disposed in front of the stove body 90 and covers the front surface of the stove body 90. The front panel 98 is provided with a first operation unit 98A, a second operation unit 98B, and an operation display 98C. The operation display 98C is an example of an "input unit" in the present invention. Details of the first operation unit 98A, the second operation unit 98B, and the operation display 98C will be described later. Note that all of the first operation unit 98A, the second operation unit 98B, and the operation display 98C may be provided on the top plate 99, or any one of the first operation unit 98A, the second operation unit 98B, and the operation display 98C may be provided on the top plate 99.

[0030] Each stove burner 97 is provided on a top plate 99. Each stove burner 97 burns fuel gas to heat food to be cooked through a frying pan, pot, etc. The number of stove burners 97 can be designed as appropriate.

[0031] The food to be cooked includes ingredients such as vegetables and meat, as well as bread 3 shown in Fig. 2. The bread 3 includes not only finished bread that has been baked, but also sliced ​​bread that has not yet been baked.

[0032] 1 and 2, the grill device 95 includes a heating chamber 95A, an opening 95B, a grill door 95C, a tray holding member 95D, a grill burner 95E, and a temperature sensor 95F. The grill burner 95E is an example of the "heating means" of the present invention. The temperature sensor 95F is an example of the "temperature detecting means" of the present invention.

[0033] As shown in FIG. 1, the opening 95B is formed in the front panel 98. As shown in FIG. 2, the heating chamber 95A is disposed inside the stove body 90. The heating chamber 95A is shaped like a generally rectangular box with an opening at the front, and is oriented so that its front faces the opening 95B. This allows the heating chamber 95A to communicate with the outside of the gas stove 9 through the opening 95B. Although not shown, the heating chamber 95A is also connected to an exhaust port 99H through an exhaust pipe. This allows air within the heating chamber 95A to be exhausted to the outside through the exhaust port 99H. Note that in FIG. 2, for ease of explanation, the stove body 90, top plate 99, and each stove burner 97 are indicated by two-dot chain lines.

[0034] As shown in Fig. 1, the grill door 95C can close and open the opening 95B. Specifically, as shown by the two-dot chain line in Fig. 1, when a user pulls the grill door 95C forward, the grill door 95C opens the opening 95B. On the other hand, as shown by the solid line in Fig. 1, when a user pushes the grill door 95C backward, the grill door 95C closes the opening 95B.

[0035] Tray holding member 95D is connected to grill door 95C and is slidable in the front-to-rear direction inside heating chamber 95A in accordance with the front-to-rear movement of grill door 95C. In other words, when grill door 95C closes opening 95B, tray holding member 95D is housed inside heating chamber 95A (see FIG. 2), and when grill door 95C opens opening 95B, tray holding member 95D is pulled out to the outside of heating chamber 95A and ultimately to the outside of stove main body 90 (see FIG. 1).

[0036] As shown in FIG. 2, tray holding member 95D holds a dish-shaped grill tray 93 for receiving oil, grease, and moisture from the food being cooked. A container holding member 93A is attached to the upper surface of grill tray 93. Container holding member 93A is formed by joining multiple metal wires together. Container holding member 93A is capable of supporting cooking container 1 from below within heating chamber 95A when cooking container 1 is used in grill device 95. Although not shown, if a container or the like having a different shape from cooking container 1 is used in grill device 95 as the "mounting member" in the present invention, a container holding member corresponding to the shape of the container or the like is attached to the upper surface of grill tray 93.

[0037] The grill burner 95E has an upper burner section 950, a first side burner section 951, and a second side burner section 952. The upper burner section 950 is an example of the "first heating section" in the present invention. The first side burner section 951 and the second side burner section 952 are an example of the "second heating section" in the present invention.

[0038] The upper burner unit 950 is disposed in the center of the upper wall 95U of the heating chamber 95A. The first side burner unit 951 is disposed on the lower side of the left side wall 95L of the heating chamber 95A. The second side burner unit 952 is disposed on the lower side of the right side wall 95R of the heating chamber 95A. Thus, in the grill device 95, the upper burner unit 950 is located above the heating chamber 95A, and the first side burner unit 951 and the second side burner unit 952 are located on the left and right sides of the heating chamber 95A, respectively.

[0039] The upper burner section 950 has a ceramic combustion plate 950A. The combustion plate 950A is arranged along the lower surface of the upper wall 95U of the heating chamber 95A. Although not shown, the combustion plate 950A is generally U-shaped when viewed from above. Furthermore, a plurality of flame holes 950B are formed over substantially the entire area of ​​the combustion plate 950A.

[0040] The first side burner section 951 is arranged to extend in the front-to-rear direction along the left side wall 95L of the heating chamber 95A. The second side burner section 952 is arranged to extend in the front-to-rear direction along the right side wall 95R of the heating chamber 95A. A plurality of flame holes 950C, 950D are formed in substantially the entire area of ​​the side end faces of the first side burner section 951 and the second side burner section 952 facing the center of the heating chamber 95A, respectively.

[0041] When the upper burner unit 950 is driven, a combustion flame of gas injected from each flame hole 950B of the combustion plate 950A is formed over almost the entire area of ​​the underside of the combustion plate 950A. As a result, the upper burner unit 950 radiates radiant heat and combustion heat downward toward the central area within the heating chamber 95A. As a result, the upper burner unit 950 heats the food to be cooked, etc., within the heating chamber 95A from above.

[0042] When the first side burner unit 951 and the second side burner unit 952 are driven, the combustion exhaust gas of the gas injected from each flame hole 950C is released toward the center of the heating chamber 95A. As a result, the first side burner unit 951 heats the food to be cooked in the heating chamber 95A from the left or the lower left. On the other hand, the second side burner unit 952 heats the food to be cooked in the heating chamber 95A from the right or the lower right.

[0043] The grill burner 95E performs a heating operation to heat the food to be cooked in the heating chamber 95A using the upper burner section 950, the first side burner section 951, and the second side burner section 952. Here, the grill burner 95E can perform a plurality of types of heating operations.

[0044] The temperature sensor 95F is attached to the left side wall 95L of the heating compartment 95A. The temperature sensor 95F can detect the temperature inside the heating compartment 95A as the inside temperature. The inside temperature is an example of the "detected temperature" in the present invention. The temperature sensor 95F transmits the detected inside temperature to the control device C1 shown in FIG. 1. The temperature sensor 95F may be attached to the top wall 95U or right side wall 95R of the heating compartment 95A. The temperature sensor 95F may also be attached in the exhaust passage from the heating compartment 95A to the exhaust port 99H.

[0045] The first operating unit 98A is capable of igniting, extinguishing and adjusting the flame power of each stove burner 97. The second operating unit 98B is capable of igniting, extinguishing and adjusting the flame power of the grill burner 95E.

[0046] The operation display 98C is configured as a display device that can be operated by a user through touch. The operation display 98C displays the types of heating operations that can be performed by the grill burner 95E, and the user can select a heating operation through touch operation. Here, the gas stove 9 is set up for heating operations including a plurality of cooking operations that heat and cook ingredients such as vegetables and meat under different conditions, a toasting operation that bakes bread, and a bread reheating operation that reheats baked bread 3.

[0047] The bread reheating operation has a first mode and a second mode. The first mode is a mode executed when reheating bread 3 that is in a frozen state. The second mode is a mode executed when reheating bread 3 that is in a non-frozen state. Here, "frozen bread 3" means bread 3 that is stored frozen. On the other hand, "non-frozen bread 3" means bread 3 that is stored at room temperature or in a refrigerator.

[0048] The operation display 98C also allows the user to input whether the bread 3 to be reheated in the bread reheating operation is frozen or unfrozen. Although detailed illustration is omitted, the operation display 98C displays an icon indicating that the bread 3 is frozen and an icon indicating that the bread 3 is unfrozen. The user then touches either of these icons to input whether the bread 3 to be reheated in the bread reheating operation is frozen or unfrozen.

[0049] The control device C1 is electrically connected to the temperature sensor 95F, the first operation unit 98A, the second operation unit 98B, and the operation display 98C. As a result, the control device C1 controls the operation of each stove burner 97 based on the user's operation of the first operation unit 98A. The control device C1 also controls the operation of the grill burner 95E based on the user's operation of the second operation unit 98B and the operation display 98C, causing the grill burner 95E to perform the heating operation selected by the user. Furthermore, the control device C1 controls the operation of the grill burner 95E during heating operation based on the internal temperature transmitted from the temperature sensor 95F.

[0050] When controlling the operation of the grill burner 95E, the control device C1 is capable of simultaneously driving all of the upper burner section 950, the first side burner section 951, and the second side burner section 952, and is also capable of driving only the upper burner section 950, or only the first side burner section 951 and the second side burner section 952.

[0051] The control device C1 can also change the heating power of the upper burner section 950 and the heating power of the first side burner section 951 and the second side burner section 952 between high and low, which is lower than high. Furthermore, the control device C1 causes the grill burner 95E to execute the first to fourth states by combining the driving of the upper burner section 950, the first side burner section 951, and the second side burner section 952 with the heating power of the upper burner section 950, the first side burner section 951, and the second side burner section 952.

[0052] In the first state, the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 are all driven at high flame. In the second state, the upper burner unit 950 is driven at high flame, while the first side burner unit 951 and the second side burner unit 952 are stopped, i.e., not driven. In the third state, the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 are all driven at low flame. In the fourth state, the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 are all not driven.

[0053] As a result, of the first to fourth states, the first to third states correspond to "driven heating" in the present invention. The fourth state corresponds to "non-driven heating" in the present invention. The first and third states correspond to "simultaneous driven heating" in the present invention, and the second state corresponds to "independently driven heating" in the present invention. In addition to the first to fourth states described above, the control device C1 may cause the grill burner 95E to execute a fifth state in which the upper burner unit 950 is driven at high heat and the first and second side burner units 951 and 952 are driven at low heat, and a sixth state in which the upper burner unit 950 is driven at low heat and the first and second side burner units 951 and 952 are driven at high heat. In this case, the fifth and sixth states correspond to "independently driven heating" and, ultimately, "driven heating" in the present invention.

[0054] Furthermore, in order to cause the grill burner 95E to perform bread reheating operation, the control device C1 stores the values ​​of the first to third temperatures X1 to X3 in the first and second modes of bread reheating operation, and the values ​​of the constant α in the first and second modes of bread reheating operation, as shown in Table 1 below.

[0055] [Table 1]

[0056] The control device C1 is also capable of measuring time during heating operations, including bread reheating operations. Furthermore, the control device C1 is electrically connected to the speaker 4 shown in Figure 1. This allows the control device C1 to control the operation of the speaker 4.

[0057] The cooking vessel 1 shown in Figures 1 and 2 is made of metal and is heat-resistant. The cooking vessel 1 has a main body 11 and a lid 12. The main body 11 is formed in the shape of a generally rectangular box with an open top. The main body 11 is provided with a mesh material 110 made of metal wire. The main body 11 can accommodate food items placed on the mesh material 110. Depending on the type of food item, the food item may be placed directly inside the main body 11 without using the mesh material 110. The cooking vessel 1 may also be made of ceramic.

[0058] The lid 12 is detachable from the top of the main body 11. As shown in Fig. 2, the lid 12 is attached to the main body 11 by being placed on top of the main body 11. As a result, the lid 12 covers the food to be cooked inside the main body 11 from above, while forming an internal space S1 between the lid 12 and the main body 11. A handle 12A that can be held by the user is screwed to the lid 12.

[0059] The gas stove 9 configured as described above allows the user to heat and cook the food by using the stove burners 97 and grill device 95 selected by the user. Furthermore, the gas stove 9 can perform a bread reheating operation in which the grill device 95 reheats the bread 3. The bread reheating operation will be described in detail below.

[0060] To perform the bread reheating operation, the user places the bread 3 to be heated on the mesh 110 and places it inside the main body 11 of the cooking container 1, as shown in Figure 2, and then places the lid 12 on top of the main body 11. The user then places the cooking container 1 inside the heating chamber 95A.

[0061] The user also selects and inputs the bread reheating operation by touching the operation display 98C. Furthermore, the user inputs whether the bread 3 is in a frozen state or an unfrozen state (step S101 in FIG. 3).

[0062] If the pan 3 is not frozen, the user touches the icon indicating that the pan 3 is not frozen (step S101 in FIG. 3: YES). Then, the user operates the second operation unit 98B to ignite the grill burner 95E (step S102: YES). Note that, in this gas stove 9, the following process is not performed unless the user operates the second operation unit 98B to ignite the grill burner 95E (step S102: NO).

[0063] When the user ignites the grill burner 95E, the control device C1 starts the bread reheating operation in the second mode (step S103). The temperature sensor 95F detects the temperature inside the heating chamber 95A at the time the user ignites the grill burner 95E, i.e., at the time the bread reheating operation starts, as the internal temperature, and transmits the detected internal temperature to the control device C1. The control device C1 then stores the received internal temperature as the initial temperature. Here, an example will be described in which the initial temperature is 25°C. The control device C1 also starts measuring the elapsed time of the bread reheating operation. The temperature sensor 95F constantly detects the temperature inside the heating chamber 95A while the bread reheating operation is being performed, and transmits the detected internal temperature to the control device C1.

[0064] When the bread reheating operation starts, the control device C1 sets the grill burner 95E to the first state to heat the bread 3 (step S104). That is, the control device C1 heats the bread 3 in the cooking vessel 1 while driving all of the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 at high flame.

[0065] As the grill burner 95E heats the bread 3, the temperature inside the heating chamber 95A rises, and the value of the inside temperature detected by the temperature sensor 95F and transmitted to the control device C1 rises. Thus, the bread 3 is heated in the first state until the inside temperature transmitted to the control device C1 reaches the first temperature X1 (step S105: NO).

[0066] As shown in Table 1 above, in this embodiment, the first temperature X1 in the second mode is set to 100° C. As a result, if the internal temperature transmitted from the temperature sensor 95F reaches 100° C. (step S105: YES), the control device C1 stores the time it takes for the internal temperature to reach 100° C. from the initial temperature of 25° C., i.e., the time from the start of measurement of the elapsed time of the bread reheating operation until the internal temperature reaches the first temperature X1, as the first heating time T1 (step S106).

[0067] The control device C1 then transitions the grill burner 95E from the first state to the second state to continue heating the bread 3 (step S107). That is, after the internal temperature reaches the first temperature X1, the control device C1 continues heating the bread 3 by driving the upper burner unit 950 at high heat and stopping the first side burner unit 951 and the second side burner unit 952. Heating of the bread 3 in this second state continues until the internal temperature transmitted to the control device C1 reaches the second temperature X2 (step S108: NO in FIG. 4).

[0068] As shown in Table 1, in this embodiment, the second temperature X2 in the second mode is set to 150° C. As a result, if the internal temperature transmitted from the temperature sensor 95F reaches 150° C. (step S108: YES), the control device C1 stores the time it takes for the internal temperature to reach the second temperature X2 from the first temperature X1, i.e., the time it takes for the internal temperature to reach 150° C. from 100° C., as the second heating time T2 (step S109).

[0069] The control device C1 then transitions the grill burner 95E from the second state to the third state to continue heating the bread 3 (step S110). That is, after the internal temperature reaches the second temperature X2, the control device C1 continues heating the bread 3 while driving all of the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 at low flame. Heating of the bread 3 in this third state continues until the internal temperature transmitted to the control device C1 reaches the third temperature X3 (step S111: NO).

[0070] As shown in Table 1, in this embodiment, the third temperature X3 in the second mode is set to 200° C. As a result, if the internal temperature transmitted from the temperature sensor 95F reaches 200° C. (step S111: YES), the control device C1 stores the time it takes for the internal temperature to reach the third temperature X3 from the second temperature X2, i.e., the time it takes for the internal temperature to reach 200° C. from 150° C., as the third heating time T3 (step S112).

[0071] The control device C1 stores the first to third heating times T1 to T3, and calculates the fourth heating time T4 based on the following formula (step S113). Calculation formula: T4=constant α×(T1+T2+T3)

[0072] As shown in Table 1, in this embodiment, the value of the constant α in the second mode is set to 1.1. That is, the fourth heating time T4 is calculated by multiplying the sum of the first to third heating times T1 to T3 by 1.1. Here, the first to third states of the grill burner 95E correspond to the "driving heating" in this invention, and therefore the sum of the first to third heating times T1 to T3, i.e., the total time of the first to third heating times T1 to T3, corresponds to the "driving heating time" in this invention.

[0073] The control device C1 stores the calculated fourth heating time T4 (step S114). Then, the control device C1 transitions the grill burner 95E from the third state to the fourth state to continue heating the bread 3 (step S115). That is, after the internal temperature reaches the third temperature X3, the control device C1 continues heating the bread 3 in the cooking container 1 while deactivating the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952. Therefore, after the internal temperature reaches the third temperature X3, the bread 3 is heated by the residual heat of the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952.

[0074] The control device C1 also starts measuring the duration of the fourth state (step S116). Thus, the pan 3 is heated in the fourth state until the duration reaches the fourth heating time T4 (step S117: NO). The fourth state of the grill burner 95E corresponds to the "non-driven heating" in this invention, and therefore the fourth heating time T4 during which the pan 3 is heated in the fourth state corresponds to the "non-driven heating time" in this invention.

[0075] If the duration of the fourth state reaches the fourth heating time T4 (step S117: YES), the control device C1 controls the operation of the speaker 4. As a result, the speaker 4 notifies the user that the bread reheating operation has ended (step S118). This notification by the speaker 4 is made by music or voice. In this way, the bread reheating operation by the gas stove 9 is completed.

[0076] On the other hand, if the user inputs that the bread 3 to be reheated in the bread reheating operation is frozen (step S101: NO in FIG. 3), the user ignites the grill burner 95E (step S211: YES), and the control device C1 starts the bread reheating operation in the first mode (step S212). As with starting a bread reheating operation in the second mode, when starting a bread reheating operation in the first mode, the temperature sensor 95F detects the temperature inside the heating chamber 95A at the start of the bread reheating operation as the internal temperature and transmits the detected internal temperature to the control device C1. The control device C1 then stores the received internal temperature as the initial temperature. Thereafter, steps S104 to S118 are performed, as with starting a bread reheating operation in the second mode.

[0077] As shown in Table 1, in this embodiment, the first to third temperatures X1 to X3 in the first mode are set to 120° C., 170° C., and 220° C. The value of the constant α in the first mode is set to 1.2.

[0078] Therefore, in the first mode, the control device C1 stores the time until the internal temperature reaches 120°C from the initial temperature as the first heating time T1 (step S106), stores the time until the internal temperature reaches 170°C from 120°C as the second heating time T2 (step S109), and stores the time until the internal temperature reaches 220°C from 170°C as the third heating time T3 (step S112).In the first mode, the control device C1 calculates the fourth heating time T4 by multiplying the sum of the first to third heating times T1 to T3 by 1.2.

[0079] In this way, in this gas stove 9, the control device C1 controls the operation of the grill burner 95E during bread reheating operation. As a result, during bread reheating operation, the grill burner 95E heats the bread 3 in the cooking container 1 while executing the first to fourth states.

[0080] As described above, in the fourth state, the first side burner unit 951 and the second side burner unit 952 are all deactivated. As a result, in the fourth state, the pan 3 in the cooking container 1 is heated by the residual heat of the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952. Therefore, the amount of heat applied to the pan 3 per unit time in the fourth state is less than the amount of heat applied to the pan 3 per unit time in the first to third states. Furthermore, in the fourth state, the temperatures of the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 gradually decrease over time, so the amount of heat applied to the pan 3 gradually decreases.

[0081] In this gas stove 9, the total time of the first to fourth heating times T1 to T4 is the total operating time of the bread reheating operation. For this reason, in this gas stove 9, the total operating time of the bread reheating operation is not determined at the stage when the bread reheating operation is started, and the total operating time of the bread reheating operation will vary each time depending on the in-cabinet temperature at the start of the bread reheating operation and the type and number of loaves of bread 3 to be reheated in the bread reheating operation.

[0082] In this gas stove 9, the fourth heating time T4 is calculated by multiplying the sum of the first to third heating times T1 to T3 by a constant α. This constant α is a positive number greater than 1. Therefore, the calculated value of the fourth heating time T4 is always greater than the sum of the first to third heating times T1 to T3. In this way, the control device C1 makes the fourth heating time T4 longer than the sum of the first to third heating times T1 to T3 within the total operating time of the bread reheating operation. In this way, during the bread reheating operation, the time during which the bread 3 is heated by the residual heat of the grill burner 95E is longer than the time during which the bread 3 is heated by the grill burner 95E in an activated state, i.e., by the grill burner 95E in a burning state.

[0083] Therefore, compared to when the control device C1 causes the grill burner 95E to execute only the first to third states during bread reheating operation, or when the total time of the first to third heating times T1 to T3 is set longer than the fourth heating time T4 within the total operating time of the bread reheating operation, with this gas stove 9, even when the bread 3 is heated during the bread reheating operation, the moisture contained in the bread 3 is less likely to be lost excessively, and the bread 3 can also be prevented from burning unnecessarily.

[0084] Furthermore, in this gas stove 9, the cooking container 1 has a main body 11 and a lid 12, and the lid 12 is positioned above the bread 3 and covers the bread 3 within the main body 11. Therefore, even if the moisture contained in the bread 3 turns to steam as the bread 3 is heated, this steam convects through the container space S1 between the main body 11 and the lid 12. This makes it difficult for the steam to be released outside the cooking container 1 (see the dashed arrow in FIG. 2). As a result, the bread 3 is humidified by the steam convecting through the container space S1, and the steam is easily absorbed by the bread 3. In this respect, too, this gas stove 9 makes it difficult for the moisture contained in the bread 3 to be lost when the bread 3 is heated in the bread reheating operation.

[0085] In this way, since the moisture contained in the bread 3 is unlikely to be lost even when the bread 3 is heated in the bread reheating operation, with this gas stove 9, there is no need to heat water together with the bread in the cooking container 1 or heating chamber 95A during the bread reheating operation to supply moisture to the bread 3. As a result, with this gas stove 9, it is possible to prevent the bread 3 heated in the bread reheating operation from becoming more moist than necessary.

[0086] Therefore, the gas stove 9 of the present invention makes it possible to reheat the pan 3 in an appropriate manner.

[0087] In particular, in this gas stove 9, if the bread 3 is in a frozen state, the control device C1 executes a bread reheating operation in the first mode, and if the bread 3 is in an unfrozen state, the control device C1 executes a bread reheating operation in the second mode. The first to third temperatures X1 to X3 in the first mode are set to higher temperatures than the first to third temperatures X1 to X3 in the second mode, and the value of the constant α in the first mode is set to be larger than the value of the constant α in the second mode.

[0088] Because the temperature of frozen bread 3 is lower than that of unfrozen bread 3, the temperature of bread 3 rises more slowly in the first mode due to heating than in the second mode. Also, as described above, the first to third temperatures X1 to X3 in the first mode are set higher than the first to third temperatures X1 to X3 in the second mode. For these reasons, the control device C1 sets the total of the first to third heating times T1 to T3 in the first mode, i.e., the driving heating time, longer than the driving heating time in the second mode.

[0089] Furthermore, the control device C1 lengthens the fourth heating time T4 in both the first mode and the second mode. Thus, the total operating time of the bread reheating operation in the first mode is longer than the total operating time of the bread reheating operation in the second mode. Therefore, with this gas stove 9, both frozen and unfrozen bread 3 can be reheated appropriately using the bread reheating operation.

[0090] Furthermore, by having the grill burner 95E execute the first to third states, this gas stove 9 is able to heat the pan 3 more appropriately during driving and heating than, for example, when the grill burner 95E is driven and heating only in the first state.

[0091] Furthermore, with this gas stove 9, at the end of the bread reheating operation, the pan 3 is heated using residual heat from the grill burner 95E. That is, with this gas stove 9, the bread reheating operation ends when the fourth heating time T4 has elapsed after the grill burner 95E has stopped operating. As a result, when the bread reheating operation ends and the user removes the cooking container 1 from the heating chamber 95A, the temperature inside the heating chamber 95A has dropped to a certain degree. As a result, with this gas stove 9, the user can easily remove the cooking container 1 from the heating chamber 95A.

[0092] Example 2 Although detailed illustration is omitted, the gas stove 9 of Example 2 has the same configuration as the gas stove 9 of Example 1. Here, in the gas stove 9 of Example 2, the control device C1 stores the values ​​of A1 to A4 and the values ​​of B1 to B4 in the first and second modes of the bread reheating operation, as shown in Table 2 below.

[0093] [Table 2]

[0094] When performing the bread reheating operation on this gas stove 9, similar to the gas stove 9 of Example 1, the user places the cooking container 1 containing the bread 3 in the heating chamber 95A (see FIG. 2). The user then selects the bread reheating operation and, if the bread 3 is not frozen, touches the icon indicating that the bread is not frozen (step S301 in FIG. 5: YES). The user then operates the second operating unit 98B to ignite the grill burner 95E (step S302: YES). This causes the control device C1 to start the bread reheating operation in the second mode (step S303).

[0095] The temperature sensor 95F detects the temperature inside the heating chamber 95A at the start of the bread reheating operation as the chamber temperature, and transmits the detected chamber temperature to the control device C1. The control device C1 then stores the received chamber temperature as the initial temperature (step S304). Here, an example will be described in which the initial temperature is 25°C.

[0096] Next, the control device C1 calculates the first to fourth heating times T1 to T4 using the following formulas. Calculation formula: T1=A1×initial temperature+B1 Calculation formula: T2=A2×initial temperature+B2 Calculation formula: T3=A3×initial temperature+B3 Calculation formula: T4=A4×Initial temperature+B4

[0097] As shown in Table 2, the value of A1 in the second mode is "-0.2," and the value of B1 in the first mode is "80 seconds." Therefore, the first heating time T1 is calculated as "-0.2 x 25 + 80," which is 75 seconds. Similarly, the second to fourth heating times T2 to T4 are calculated based on the values ​​of A2 to A4 and B2 to B4 shown in Table 2. As a result, the second heating time T2 is 75 seconds, the third heating time T3 is 75 seconds, and the fourth heating time T4 is 255 seconds. Then, the control device C1 stores the calculated first to fourth heating times T1 to T4 (step S305).

[0098] Next, the control device C1 sets the grill burner 95E to the first state and starts heating the bread 3 (step S306). That is, the control device C1 heats the bread 3 while driving all of the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 at high flame. At this time, the control device C1 continues heating the bread 3 in the first state until the first heating time T1, i.e., 75 seconds, has elapsed (step S307: NO).

[0099] Then, if the heating time of the bread 3 in the first state reaches the first heating time T1 (step S307: YES), the control device C1 transitions the grill burner 95E from the first state to the second state and continues heating the bread 3 (step S308).

[0100] Therefore, after the first heating time T1 has elapsed, the control device C1 continues heating the bread 3 by driving the upper burner unit 950 at high heat and stopping the driving of the first side burner unit 951 and the second side burner unit 952. At this time, the control device C1 continues heating the bread 3 in the second state until the second heating time T2, i.e., 75 seconds, has elapsed (step S309: NO in FIG. 6).

[0101] Then, if the heating time of the bread 3 in the second state reaches the second heating time T2 (step S309: YES), the control device C1 transitions the grill burner 95E from the second state to the third state and continues heating the bread 3 (step S310).

[0102] Therefore, after the second heating time T2 has elapsed, the control device C1 continues to heat the bread 3 while driving all of the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952 at low flames. At this time, the control device C1 continues to heat the bread 3 in the third state until the third heating time T3, i.e., 75 seconds, has elapsed (step S311: NO).

[0103] Then, if the heating time of the bread 3 in the third state reaches the third heating time T3 (step S311: YES), the control device C1 transitions the grill burner 95E from the third state to the fourth state and continues heating the bread 3 (step S312).

[0104] Thus, after the third heating time T3 has elapsed, heating of the bread 3 continues using the residual heat from the upper burner unit 950, the first side burner unit 951, and the second side burner unit 952. Then, the control device C1 continues heating the bread 3 in the fourth state until the fourth heating time T4, i.e., 255 seconds, has elapsed (step S313: NO).

[0105] Then, when the fourth heating time T4 is reached (step S313: YES), the control device C1 controls the operation of the speaker 4, similar to the gas stove 9 of the first embodiment. As a result, in this gas stove 9 as well, the speaker 4 notifies the user that the bread reheating operation has ended (step S314). In this way, the bread reheating operation in this gas stove 9 as well is completed.

[0106] On the other hand, if the user inputs that the bread 3 to be reheated in the bread reheating operation is frozen (step S301 in FIG. 5: NO), the user ignites the grill burner 95E (step S411: YES), and the control device C1 starts the bread reheating operation in the first mode (step S412). Thereafter, steps S304 to S314 are performed in the same manner as when starting the bread reheating operation in the second mode.

[0107] As shown in Table 2, in this example, the values ​​of A1 to A4 in the first mode are all "-0.1." Furthermore, the values ​​of B1 to B3 are all "120 seconds," and the value of B4 is "380 seconds." Therefore, according to the above-mentioned calculation formulas, the first to third heating times T1 to T3 in the first mode are each 117.5 seconds, and the fourth heating time T4 is 377.5 seconds.

[0108] Thus, in this gas stove 9, the grill burner 95E heats the pan 3 in the first to third states during the first to third heating times T1 to T3 calculated in step S305. Therefore, in this gas stove 9 as well, the total time of the first to third heating times T1 to T3 corresponds to the "driven heating time" in the present invention, and the fourth heating time T4 corresponds to the "non-driven heating time" in the present invention. Furthermore, whether in the first mode or the second mode, the fourth heating time T4 is longer than the total time of the first to third heating times T1 to T3.

[0109] In the first mode, the total length of the first to third heating times T1 to T3 is 352.5 seconds, and the fourth heating time T4 is 377.5 seconds. Meanwhile, in the second mode, the total length of the first to third heating times T1 to T3 is 225 seconds, and the fourth heating time T4 is 255 seconds.

[0110] For this reason, in this gas stove 9, the total operating time of the bread reheating operation in the first mode is longer than the total operating time of the bread reheating operation in the second mode. Furthermore, the total of the first to third heating times T1 to T3 in the first mode is longer than the total of the first to third heating times T1 to T3 in the second mode, and the fourth heating time T4 in the first mode is longer than the fourth heating time T4 in the second mode. Thus, in this gas stove 9, as with the gas stove 9 of Example 1, the bread 3 can be suitably reheated by the bread reheating operation.

[0111] Furthermore, in this gas stove 9, once the control device C1 stores the internal temperature detected in step S304 as the initial temperature, thereafter the temperature sensor 95F does not need to detect the internal temperature, and the control device C1 does not need to store the internal temperature even if it changes. Therefore, in this gas stove 9, the processing load on the control device C1 when performing the bread reheating operation can be reduced. Other functions of this gas stove 9 are the same as those of the gas stove 9 of the first embodiment.

[0112] The present invention has been described above in accordance with Examples 1 and 2, but it goes without saying that the present invention is not limited to the above Examples 1 and 2, and can be modified and applied as appropriate within the scope of the invention.

[0113] For example, in Examples 1 and 2, the gas stove 9 equipped with the stove burners 97, the grill device 95, the control device C1, etc. is considered to be the "cooker" of the present invention. However, the present invention is not limited to this, and the "cooker" of the present invention may be configured by the grill device 95 and the control device C1.

[0114] Furthermore, in the gas stove 9 of Examples 1 and 2, the user may be able to input information such as the dough and shape of the bread 3 to be reheated during the bread reheating operation, and based on this information, the control device C1 may set the lengths of the driving heating time and the non-driving heating time during the bread reheating operation.

[0115] In the gas stove 9 of Examples 1 and 2, the first side burner unit 951 and the second side burner unit 952 heat the bread 3 in the cooking vessel 1 from the left and right sides, respectively. However, by using a shallower main body 11 for the cooking vessel 1, the first side burner unit 951 may heat the bread 3 in the cooking vessel 1 from the lower left, and the second side burner unit 952 may heat the bread 3 in the cooking vessel 1 from the lower right. Furthermore, by arranging both the first side burner unit 951 and the second side burner unit 952 below the cooking vessel 1, the first side burner unit 951 and the second side burner unit 952 may heat the bread 3 in the cooking vessel 1 from below.

[0116] Furthermore, in the gas stove 9 of Examples 1 and 2, the grill burner 95E may be replaced by a single lower burner section located approximately in the center of the heating chamber 95A in the left-right direction, capable of heating the pan 3 in the cooking container 1 from below, instead of the first side burner section 951 and the second side burner section 952, or multiple such lower burner sections may be provided in the front-to-back direction of the heating chamber 95A.

[0117] In the gas stove 9 of Examples 1 and 2, the grill burner 95E is the "heating means" of the present invention. However, the present invention is not limited to this, and an electric heater or the like may also be the "heating means" of the present invention.

[0118] In the gas stove 9 of the first and second embodiments, the temperature sensor 95F may detect the temperature of the cooking vessel 1 as the detected temperature.

[0119] In the gas stove 9 of Example 1, the control device C1 may calculate the fourth heating time T4 using another calculation formula. Similarly, in the gas stove 9 of Example 2, the control device C1 may calculate the first to fourth heating times T1 to T4 using another calculation formula. [Industrial Applicability]

[0120] The present invention can be used in home cooking appliances, kitchen equipment, and the like. [Explanation of symbols]

[0121] 1...Cooking container (mounting member) 3...Bread 9...Gas stove (heating cooker) 11...Main body 12...Lid part 95A…Heating cabinet 95E...Grill burner (heating means) 95F...Temperature sensor 950...Upper burner section (first heating section) 951...First side burner section (second heating section) 952...Second side burner section (second heating section) C1: Control device (control unit)

Claims

1. A placing member on which food to be cooked can be placed; A heating chamber capable of accommodating the food to be cooked and the placing member therein; A heating means capable of performing a heating operation to heat the food to be cooked in the heating chamber; a control unit that controls the heating means and causes the heating means to perform the heating operation, The food to be cooked includes bread, The heating operation includes a bread reheating operation for reheating the bread, The control unit, during the bread reheating operation, performs a driving heating operation in which the heating means is driven to heat the bread, and a non-driving heating operation in which the driving of the heating means is stopped after the driving heating operation and the bread is heated by residual heat of the heating means, The control unit is characterized in that, of the total operating time of the bread reheating operation, the non-driving heating time during which the non-driving heating is performed is longer than the driving heating time during which the driving heating is performed.

2. a temperature detection means capable of detecting the temperature of the mounting member or the inside of the heating chamber as a detection temperature; The heating means has a first heating section capable of heating the food from above, and a second heating section capable of heating the food from at least one of the side and the bottom, The control unit controls the first heating unit and the second heating unit in accordance with the detected temperature during the bread reheating operation, The heating cooker according to claim 1, wherein the driving heating comprises simultaneous driving heating in which the first heating section and the second heating section are driven simultaneously, and single driving heating in which only one of the first heating section or the second heating section is driven.

3. an input unit that allows a user to input whether the bread is frozen or not; The bread reheating operation has a first mode in which the bread in the frozen state is reheated, and a second mode in which the bread in the non-frozen state is reheated, The control unit executes the bread reheating operation in the first mode when the frozen state is input to the input unit, and executes the bread reheating operation in the second mode when the non-frozen state is input to the input unit, 3. The heating cooker according to claim 1, wherein the control unit makes the driving heating time in the first mode longer than the driving heating time in the second mode, and makes the non-driving heating time in the first mode longer than the non-driving heating time in the second mode.

4. 3. The cooking device according to claim 1, wherein the placing member has a main body portion on which the food to be cooked can be placed, and a lid portion attached to the main body portion and positioned above the food to be cooked.

Images