Manufacturing method of gas cooking stove and gas cooking stove

Abstract

To provide an art which can easily avoid interference between a back plate part and an exhaust duct in a gas cooking stove and inhibits design change and increase in the number of components when the gas cooking stove is designed and manufactured.SOLUTION: A first grill chamber 105A has a shape partially in common with that of a gas cooking stove 201 having a second specification, which is different from a gas cooking stove 101 having a first specification, and a first lower structure part 120 has a shape in common with that of a second lower structure part 220. In a first back plate part 102C of the gas cooking stove 101, a protrusion part 103 is provided at the upper side relative to a center position in a vertical direction of the first back plate part 102C. A part of a catalyst 140 is disposed in the protrusion part 103. A second back plate part 202C has a structure which is not provided with a protrusion to the rear side for allowing a second exhaust duct 207 to enter. A portion, which is located below a center position in the vertical direction, of the first back plate part 102C has a shape in common with a shape of a portion, which is located below a center position in the vertical direction, of the second back plate part 202C.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a method for manufacturing a gas stove and a gas stove. [Background technology]

[0002] Patent Document 1 discloses a built-in stove. This stove has a roughly rectangular parallelepiped housing, with a top plate fixed to the open top of the housing. A right burner is provided at the front right of the top plate, a left burner at the front left, and a rear burner at the rear center. An exhaust port for the grill is provided at the center of the rear end of the top plate. A grill compartment is provided within the housing, and a grill door is provided at the center of the front of the housing so that it can be pulled out toward the front. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-85369 Summary of the Invention [Problem to be solved by the invention]

[0004] Many conventional built-in stoves, including the built-in stove of Patent Document 1, are configured so that the housing is inserted onto the periphery of an opening formed on the top surface of the cabinet and is placed on the cabinet so that it is suspended and supported by the cabinet. In this type of gas stove, measures have been taken to make the rear ends of the side walls and the back panel of the housing slope upward toward the rear, so as to reduce interference when inserting the housing into the opening.

[0005] Many gas stoves have an exhaust duct near the back panel to release exhaust air generated in the grill chamber, and in stoves with a back panel that is easily accessible to the exhaust duct, such as those with an inclined back panel, interference between the exhaust duct and the back panel can be a problem. While such interference needs to be avoided, it is undesirable to require excessive design changes or an increase in the number of parts in order to avoid it.

[0006] One of the purposes of the present disclosure is to provide technology that makes it easier to avoid interference between the back panel and the exhaust duct in a gas stove, and that makes it easier to suppress design changes and an increase in the number of parts when designing and manufacturing a gas stove. [Means for solving the problem]

[0007] A method for manufacturing a gas stove according to the present disclosure includes: One or more stove burners that emit flames upward; A housing configured to accommodate at least a portion of the stove burner and having an open upper end; a top plate attached to an upper end of the housing and partially closing an opening on the upper end side of the housing; A grill device housed in the housing and having a grill chamber and a grill burner that heats the inside of the grill chamber; An exhaust duct having an exhaust port and guiding smoke generated in the grill chamber to the exhaust port for exhaust; A method for manufacturing a gas stove comprising: A first selection step of selecting whether or not to use an afterburner that heats at least one of smoke or odor components generated in the grill chamber; a second selection step of selecting a first grill cabinet as the grill cabinet when it is selected in the first selection step to use the afterburner, and selecting a second grill cabinet different from the first grill cabinet as the grill cabinet when it is selected in the first selection step not to use the afterburner; a third selection step of selecting a first exhaust duct as the exhaust duct when the first grill chamber is selected in the second selection step, and selecting a second exhaust duct as the exhaust duct when the second grill chamber is selected in the second selection step; a fourth selection step of selecting a first housing as the housing when the first exhaust duct is selected in the third selection step, and selecting a second housing as the housing when the second exhaust duct is selected in the second selection step; an assembling process of assembling the grill chamber selected in the second selection process and the exhaust duct selected in the third selection process to the housing selected in the fourth selection process; Including, The first housing has a box-like shape in which an accommodation space of the first grill chamber is surrounded by a first bottom wall portion, a pair of first side wall portions, a first back plate portion, and a first front frame portion, The second housing has a box-like shape in which the storage space of the first grill chamber is surrounded by a second bottom wall portion, a pair of second side wall portions, a second back plate portion, and a second front frame portion, The first grill chamber is configured to include a first upper component that accommodates and holds the grill burner and the afterburner, and a first lower component that is assembled to the first upper component from below, The second grill chamber is configured to include a second upper component that accommodates and holds the grill burner but does not accommodate the afterburner, and a second lower component that is configured to be assembled to the second upper component from below and has a common shape with the first lower component, The first exhaust duct is configured to have a catalyst provided therein, The second exhaust duct is configured so that no catalyst is provided inside. The first back plate portion has a bulging portion provided above a center position of the first back plate portion in a vertical direction, and a part of the first exhaust duct is inserted into the bulging portion, The second back plate portion is configured so as not to have a bulge toward the rear side for allowing the second exhaust duct to enter.

[0008] The gas stove that is one of the disclosures is One or more stove burners that emit flames upward; A housing configured to accommodate at least a portion of the stove burner and having an open upper end; a top plate attached to an upper end of the housing and partially closing an opening on the upper end side of the housing; A grill device housed in the housing and having a first grill chamber and a grill burner that heats the inside of the grill chamber; An afterburner that heats at least one of smoke or odor components generated in the first grill chamber; A first exhaust duct having an exhaust port and guiding smoke generated in the first grill chamber to the exhaust port for exhaust; A gas stove equipped with The first grill chamber is configured to include a first upper component that accommodates and holds the grill burner and the afterburner, and a first lower component that is assembled to the first upper component from below, The first exhaust duct is configured to have a catalyst provided therein, The first grill chamber has a shape that is partially common to a gas stove with specifications different from the gas stove, The gas stove of different specifications is provided with a second grill chamber different from the first grill chamber and a second exhaust duct different from the first exhaust duct, The second grill chamber includes a second upper component that accommodates and holds the grill burner but does not accommodate the afterburner, and a second lower component that is assembled to the second upper component from below, The second exhaust duct does not have a catalyst installed therein, The first lower component has a common shape with the second lower component. [Effects of the Invention]

[0009] The technology disclosed herein makes it easier to avoid interference between the back panel and the exhaust duct in a gas stove, and also makes it easier to suppress design changes and an increase in the number of parts when designing and manufacturing the gas stove. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view schematically illustrating a gas stove according to a first embodiment. [Figure 2] FIG. 2 is a front view of the gas stove of FIG. [Figure 3] FIG. 3 is an explanatory diagram schematically showing a gas supply structure to each gas burner in the gas stove of FIG. [Figure 4] FIG. 4 is a block diagram illustrating an example of the electrical configuration of the gas stove of FIG. [Figure 5] FIG. 5 is a cross-sectional view illustrating a schematic example of the internal configuration of the housing of the first specification gas stove. [Figure 6] FIG. 6 is an exploded perspective view schematically illustrating a part of the housing of the first specification gas stove. [Figure 7] FIG. 7 is a schematic diagram showing the internal configuration of the housing of the first specification gas stove, mainly showing the relationship between the first housing and the first grill device. [Figure 8] FIG. 8 is a perspective cross-sectional view of a part of the first specification gas stove. [Figure 9] FIG. 9 is a perspective view schematically illustrating a first grill device and a first exhaust duct of a first specification gas stove. [Figure 10] FIG. 10 is a side view of the first grill device and the first exhaust duct of the first specification gas stove. [Figure 11] FIG. 11 is an exploded perspective view of a first grill device and a first exhaust duct of a first specification gas stove. [Figure 12] FIG. 12 is a side view of the first specification gas stove with the first grill device and the first exhaust duct disassembled. [Figure 13]FIG. 13 is an exploded perspective cross-sectional view of a first grill device and a first exhaust duct of a first specification gas stove. [Figure 14] FIG. 14 is a schematic diagram showing the internal configuration of the housing of the second specification gas stove, mainly showing the relationship between the second housing and the second grill device. [Figure 15] FIG. 15 is an exploded perspective view schematically illustrating a part of the housing of the second specification gas stove. [Figure 16] FIG. 16 is a perspective view schematically illustrating a second grill device and a second exhaust duct of a second specification gas stove. [Figure 17] FIG. 17 is a side view of the second grill device and the second exhaust duct of the second specification gas stove. [Figure 18] FIG. 18 is an exploded perspective view of the second grill device and the second exhaust duct of the second specification gas stove. [Figure 19] FIG. 19 is a side view of the second grill device and the second exhaust duct of the second specification gas stove, in exploded form. [Figure 20] FIG. 20 is an exploded perspective cross-sectional view of a first grill device and a first exhaust duct of a second specification gas stove. DETAILED DESCRIPTION OF THE INVENTION

[0011] Each of the following [1] to [5] is an example of a characteristic technique included in the present disclosure.

[0012] [1] One or more stove burners that emit flames upward; A housing configured to accommodate at least a portion of the stove burner and having an open upper end; a top plate attached to an upper end of the housing and partially closing an opening on the upper end side of the housing; A grill device housed in the housing and having a grill chamber and a grill burner that heats the inside of the grill chamber; An exhaust duct having an exhaust port and guiding smoke generated in the grill chamber to the exhaust port for exhaust; A manufacturing method of a gas stove comprising: A first selection step of selecting whether or not to use an afterburner that heats at least one of smoke or odor components generated in the grill chamber; a second selection step of selecting a first grill cabinet as the grill cabinet when it is selected in the first selection step to use the afterburner, and selecting a second grill cabinet different from the first grill cabinet as the grill cabinet when it is selected in the first selection step not to use the afterburner; a third selection step of selecting a first exhaust duct as the exhaust duct when the first grill chamber is selected in the second selection step, and selecting a second exhaust duct as the exhaust duct when the second grill chamber is selected in the second selection step; a fourth selection step of selecting a first housing as the housing when the first exhaust duct is selected in the third selection step, and selecting a second housing as the housing when the second exhaust duct is selected in the second selection step; an assembling process of assembling the grill chamber selected in the second selection process and the exhaust duct selected in the third selection process to the housing selected in the fourth selection process; Including, The first housing has a box-like shape in which an accommodation space of the first grill chamber is surrounded by a first bottom wall portion, a pair of first side wall portions, a first back plate portion, and a first front frame portion, The second housing has a box-like shape in which the storage space of the first grill chamber is surrounded by a second bottom wall portion, a pair of second side wall portions, a second back plate portion, and a second front frame portion, The first grill chamber is configured to include a first upper component that accommodates and holds the grill burner and the afterburner, and a first lower component that is assembled to the first upper component from below, The second grill chamber is configured to include a second upper component that accommodates and holds the grill burner but does not accommodate the afterburner, and a second lower component that is configured to be assembled to the second upper component from below and has a common shape with the first lower component, The first exhaust duct is configured to have a catalyst provided therein, The second exhaust duct is configured so that no catalyst is provided inside. The first back plate portion has a bulging portion provided above a center position of the first back plate portion in a vertical direction, and a part of the first exhaust duct is inserted into the bulging portion, The second back plate portion is configured so as not to have a bulge toward the rear side for allowing the second exhaust duct to enter. How to manufacture a gas stove.

[0013] The manufacturing method for gas stoves described in [1] above allows the shape of the lower component of the grill chamber to be standardized, making it easier to minimize design changes and an increase in the number of parts required when designing and manufacturing gas stoves. Meanwhile, the upper component can be divided into two parts: a first upper component for a configuration using an afterburner and a second upper component for a configuration not using an afterburner, making it possible to accommodate different specifications. Furthermore, if a first upper component for a configuration using an afterburner and a first exhaust duct with a catalyst installed inside are used, the area between the grill chamber and the exhaust burner tends to be long from front to back, which can easily cause interference with the back panel. However, a bulge is provided in the first back panel adjacent to the first exhaust duct, and a portion of the first exhaust duct is positioned to fit into this bulge, thereby minimizing interference. Meanwhile, the second back panel does not have a rearward bulge to accommodate the second exhaust duct, thereby minimizing rearward protrusion.

[0014] [2] The first back plate portion has the bulging portion provided above the center position of the first back plate portion in the vertical direction, The shape of the first back plate portion below the center position in the vertical direction and the shape of the second back plate portion below the center position in the vertical direction are the same shape. A method for manufacturing the gas stove described in [1].

[0015] The manufacturing method of the gas stove described above in [2] allows the shape of the underside of the first back panel portion and the shape of the underside of the second back panel portion to be standardized, making it easy to standardize the design and process in this area.

[0016] [3] The first bottom wall portion and the second bottom wall portion have a common shape, The pair of first side wall portions and the pair of second side wall portions have a common shape. A method for manufacturing a gas stove according to [1] or [2].

[0017] The manufacturing method of the gas stove described above in [3] allows the bottom wall portion and the pair of side wall portions of the casing, excluding the back panel portion, to be standardized, making it easy to standardize the design and process in these areas.

[0018] [4] A part of the catalyst is disposed in the bulging portion. A method for manufacturing a gas stove according to any one of [1] to [3].

[0019] The manufacturing method of the gas stove described in [4] above makes it easier to suppress interference caused by the catalyst, and makes it easier to enlarge the catalyst area.

[0020] [5] One or more stove burners that emit flames upward; A housing configured to accommodate at least a portion of the stove burner and having an open upper end; a top plate attached to an upper end of the housing and partially closing an opening on the upper end side of the housing; A grill device housed in the housing and having a first grill chamber and a grill burner that heats the inside of the grill chamber; An afterburner that heats at least one of smoke or odor components generated in the first grill chamber; A first exhaust duct having an exhaust port and guiding smoke generated in the first grill chamber to the exhaust port for exhaust; A gas stove equipped with The first grill chamber is configured to include a first upper component that accommodates and holds the grill burner and the afterburner, and a first lower component that is assembled to the first upper component from below, The first exhaust duct is configured to have a catalyst provided therein, The first grill chamber has a shape that is partially common to a gas stove with specifications different from the gas stove, The gas stove of different specifications is provided with a second grill chamber different from the first grill chamber and a second exhaust duct different from the first exhaust duct, The second grill chamber includes a second upper component that accommodates and holds the grill burner but does not accommodate the afterburner, and a second lower component that is assembled to the second upper component from below, The second exhaust duct does not have a catalyst installed therein, The first lower component has a common shape with the second lower component. Gas stove.

[0021] The gas stove described in [5] above is likely to achieve the same effects as the manufacturing method of the gas stove described in [1] above.

[0022] First Embodiment The following description relates to the first embodiment. 1. Common configuration The following description relates to the basic configuration of the gas stove 1. The gas stove 1 to be manufactured is specifically a first specification gas stove 101, a second specification gas stove 201, etc. The following configuration, which will be described with reference to Figures 1 to 4, is common to both the gas stoves 101 and 201.

[0023] The gas stove 1 shown in Figures 1 and 2 is configured as a built-in stove capable of heating cooking utensils such as cooking pots. The gas stove 1 has an outer shell (case body) formed by a stove main body 1A, and various components such as a gas burner are housed inside the stove main body 1A. The stove main body 1A includes a box-shaped housing 2, a top plate 3 fixed to the upper end of the housing 2, and panel portions 70A, 70B (upper panel portion) and 80A, 80B (lower panel portion) fixed to the front end of the housing 2. The housing 2 is configured to house stove burners 51, 52, 53 and a grill burner 54 (described below), and is configured to have openings on both upper and lower ends. The top plate 3 is attached to the upper end of the housing 2 and is configured to partially close the opening on the upper end side of the housing 2. The housing 2 is a first housing 102 for the first specification and a second housing 202 for the second specification.

[0024] In this specification, in gas stove 1, the thickness direction of top plate 3 is the up-down direction, the direction parallel to the rotation axes of operation buttons (rotary operation units) 6A, 6B, 6C, and 6D is the front-rear direction, and the direction perpendicular to the up-down and front-rear directions is the left-right direction. In Fig. 2, the left-right direction is the left-right direction of gas stove 1, and the up-down direction is the up-down direction of gas stove 1. In the example of Fig. 1, the front and rear ends of rectangular top plate 3 extend along the left-right direction, and the left and right ends of top plate 3 extend along the front-rear direction.

[0025] The gas stove 1 has a right burner section 4A, a left burner section 4B, and a rear burner section 4C, each of which is exposed from a top plate 3 that forms the upper surface of the stove main body 1A. A grill compartment 5A is provided near the center of the interior of the stove main body 1A below the top plate 3 and can be opened and closed by a grill door 5B. Gas burners 51, 52, and 53 are provided in the right burner section 4A, the left burner section 4B, and the rear burner section 4C, as shown in FIG. 3, and a grill burner 54 is provided inside the grill compartment 5A. The burners 51, 52, and 53 are gas burners that emit flames toward the upper side of the top plate 3. The grill burner 54 is a gas burner that heats the interior of the grill compartment 5A within the housing 2.

[0026] The grill chamber 5A is a first grill chamber 105A for the first specification and a second grill chamber 205A for the second specification. An exhaust duct 7 is provided behind the grill chamber 5A in communication with the grill chamber 5A. The exhaust duct 7 is a first exhaust duct 107 for the first specification and a second exhaust duct 207 for the second specification.

[0027] Branch supply passages 61, 62, 63, 64 are connected to stove burners 51, 52, 53 and grill burner 54, respectively, and these branch supply passages 61, 62, 63, 64 branch off from common supply passage 60. Common supply passage 60 is provided with a main solenoid valve N1 that opens and closes common supply passage 60, and each branch supply passage 61, 62, 63 is provided with solenoid valves (safety valves) 51G, 52G, 53G that can open and close each branch supply passage 61, 62, 63, shut-off valves 51F, 52F, 53F, and heat adjustment valves 51E, 52E, 53E, respectively. The safety valve 51G, the shut-off valve 51F, and the heat power adjustment valve 51E are driven by a stepping motor M1, the safety valve 52G, the shut-off valve 52F, and the heat power adjustment valve 52E are driven by a stepping motor M2, and the safety valve 53G, the shut-off valve 53F, and the heat power adjustment valve 53E are driven by a stepping motor M3.

[0028] The grill burners 54 of the grill chamber 5A include an upper burner 54A located on the upper side within the grill chamber 5A and a lower burner 54B located on the lower side. The lower burner 54B is located lower than the upper burner 54A. A branch supply path 64 branches off from the common supply path 60 and leads gas to the grill burners 54. A first supply path 65A leads gas to the upper burner 54A, and a second supply path 65B leads gas to the lower burner 54B. The gas supply is controlled by a solenoid valve 54G, a shut-off valve 54F, and solenoid valves 54H, 54J, and 54K.

[0029] 1 and 2, four operation buttons (rotary operation units) 6A, 6B, 6C, and 6D for ignition, extinguishing, and heat adjustment are provided for right burner unit 4A, left burner unit 4B, rear burner unit 4C, and grill chamber 5A, respectively. As shown in Fig. 4, switches 30A, 30B, 30C, and 30D are provided corresponding to operation buttons (rotary operation units) 6A, 6B, 6C, and 6D, respectively, and ignition signal input circuits 40A, 40B, 40C, and 40D are provided corresponding to switches 30A, 30B, 30C, and 30D, respectively. Furthermore, displacement detectors 32A, 32B, 32C, and 32D are provided corresponding to the operation buttons (rotary operation units) 6A, 6B, 6C, and 6D, respectively, and thermal power signal input circuits 42A, 42B, 42C, and 42D are provided corresponding to the displacement detectors 32A, 32B, 32C, and 32D, respectively. The control circuit 10 is configured as, for example, a microcomputer and includes a CPU 10A, a ROM 10B, and a RAM 10C. The control circuit 10 controls the solenoid valves, igniter devices 26A and 26B, motors M1, M2, M3, and M4, non-volatile memory 16, and the like. The operation unit 18 is configured with a known input interface such as an operation button or a touch panel. The power supply circuit 48 receives power from batteries 49 (e.g., two dry batteries) housed in a battery box and generates a predetermined power supply voltage.

[0030] 2. Regarding the first specification gas stove 101 The first specification gas stove 101 has an internal configuration as shown in Figure 5. Note that the top plate 3 and stove sections 4A, 4B, 4C are omitted in Figure 5. The first specification gas stove 101 uses a first housing 102 (see Figure 6) as the housing 2, a first grill device 105 as the grill device 5, and a first exhaust duct 107 as the exhaust duct 7.

[0031] As shown in FIG. 6, first housing 102 has a box-like shape that encloses the storage space of first grill chamber 105A on the front, rear, left, right, and bottom sides. It is made up of first bottom wall 102D, a pair of first sidewalls 102A, 102B rising upward from near both the left and right ends of first bottom wall 102D, a first back panel 102C connected to the pair of first sidewalls 102A, 102B and the rear ends of first bottom wall 102D, and a first front frame 102E connected to the pair of first sidewalls 102A, 102B and the front ends of first bottom wall 102D. First housing 102 has openings at its upper and front ends, and a top panel 3, as shown in FIG. 1, is attached to close the upper end. The configuration of first housing 102 near first front frame 102E is the same as that shown in FIG. 1.

[0032] The first grill device 105, which functions as the grill device 5 of the first specification gas stove 101, is a device housed in the first housing 102 as shown in FIGS. 5 and 7, and is a device that can heat food items inside the first housing 102. As shown in FIG. 8, the first grill device 105 is positioned so that its rear end is adjacent to the first back panel portion 102C. As shown in FIGS. 5 and 7, the first grill device 105 has a first grill chamber 105A that functions as the above-mentioned grill chamber 5A, and a grill burner 54 that is a gas burner inside the first housing 102 that heats the inside of the first grill chamber 105A.

[0033] The first grill device 105 has a configuration as shown in Figures 9 and 10. In the first grill device 105, the first grill chamber 105A is formed in the shape of a substantially rectangular parallelepiped box and includes an upper wall portion 106A, a right wall portion 106B, a left wall portion 106C, and a bottom wall portion 106D. A grill opening portion 106E that is rectangular in front view is provided at the front end of the first grill chamber 105A. An upper burner 54A that functions as a grill burner 54 is provided near the upper wall portion 106A. The upper burner 54A forms a flame toward the inside of the grill chamber 5A. A lower burner 54B that also functions as a grill burner 54 is provided below the upper burner 54A.

[0034] The grill door 105B, which functions as the grill door 5B shown in FIG. 1, is provided in front of the first grill chamber 105A as shown in FIG. 5 and opens and closes the grill opening 106E. A support frame 105C, as shown in FIGS. 5 and 9, is fixed to the lower back of the grill door 105B. The support frame 105C detachably supports the grill and the tray. The support frame 105C is supported by rail mechanisms provided on both the left and right sides of the upper surface of the bottom wall of the first grill chamber 105A so that it can move forward and backward. This configuration allows the grill door 105B to be pulled out toward the front together with the support frame 105C, allowing the grill and the tray to be simultaneously removed outside the first grill chamber 105A.

[0035] As shown in FIG. 5, the first specification gas stove 101 has an afterburner unit 190 installed in the first grill chamber 105A or the first exhaust duct 107 (in the first grill chamber 105A in the representative example of FIG. 5). The afterburner unit 190 includes an afterburner 180. The afterburner 180 is a gas burner with its flame port located in the space inside the first grill chamber 105A or the first exhaust duct 107, and heats at least one of the smoke and odor components generated in the first grill chamber 105A. In the example of FIG. 5, the afterburner 180 is configured longitudinally in the left-right direction and is arranged behind the upper burner 54A and above the lower burner 54B, side by side with the upper burner 54A in the front-to-back direction. The afterburner 180 functions to heat and reduce oily smoke and odor components generated from ingredients contained in the combustion exhaust.

[0036] 11 to 13, the first grill chamber 105A includes a first upper constituent part 110 that houses and holds the upper burner 54A (FIG. 5) and the afterburner 180 (FIG. 5), and a first lower constituent part 120 that is assembled from below to the first upper constituent part 110. The upper constituent part 110 has an upper outer shell part that is made up of an upper wall part 106A, a wall part 112A that forms a part of the upper side of the right wall part 106B, and a wall part 114A that forms a part of the upper side of the left wall part 106C, and as shown in FIG. 13, the upper burner 54A (FIG. 5) and the afterburner 180 (FIG. 5) are held within this upper outer shell part. The lower component 120 has a lower outer shell portion composed of a bottom wall portion 106D, a wall portion 112B forming part of the lower side of the right wall portion 106B, and a wall portion 114B forming part of the lower side of the left wall portion 106C, and the lower burner 54B (Figure 5) is held within this lower outer shell portion.

[0037] As shown in Figures 5, 7, 8, and 11 to 13, a first exhaust duct 107 is provided on the rear side of the first grill chamber 105A. The first exhaust duct 107 has an opening 107B (Figure 11) as a gas inlet at its front end, and is configured as a passage that guides gas from this opening 107B to an exhaust port 107A provided at the upper end of the rear side. The first exhaust duct 107 has exhaust ports 107A at its rear and upper ends, and is configured to guide smoke generated in the first grill chamber 105A to the exhaust port 107A for exhaust. The exhaust port 107A opens upward and is formed in a generally rectangular shape that is elongated in the left-right direction in a plan view. The first exhaust duct 107 is formed in a generally rectangular tube shape that extends obliquely upward from the rear of the first grill chamber 105A. The space inside first exhaust duct 107 communicates with the space inside first grill chamber 105A. Combustion exhaust generated inside first grill chamber 105A flows upward inside first exhaust duct 107 and is discharged to the outside through exhaust port 107A.

[0038] A catalyst 140 is provided inside first exhaust duct 107. Catalyst 140 is configured as a catalytic filter, and is, for example, a heat-resistant ceramic plate with a plurality of openings formed therein that carries an oxidation catalyst such as platinum, and is provided so as to cover the entire passage of first exhaust duct 107. It is heated and activated by afterburner 180 located upstream, and suppresses odors and smoke when smoke passes through catalyst 140 (catalytic filter) (for example, by oxidizing the smoke to make it odorless and smokeless).

[0039] 3. Regarding the second specification gas stove 201 The second specification gas stove 201 has an internal configuration as shown in Figure 14. Note that the top plate 3 and stove sections 4A, 4B, 4C are omitted in Figure 14. The second specification gas stove 201 uses a second housing 202 (see Figure 15) as the housing 2, a second grill device 205 as the grill device 5, and a second exhaust duct 207 as the exhaust duct 7.

[0040] As shown in FIG. 15 , the second housing 202 has a box-like shape that encloses the storage space of the second grill chamber 205A on the front, rear, left, right, and bottom sides. The box-like shape is comprised of a second bottom wall 202D, a pair of second side walls 202A, 202B rising upward from near both the left and right ends of the second bottom wall 202D, a second back panel 202C connected to the rear ends of the pair of second side walls 202A, 202B and the second bottom wall 202D, and a second front frame 202E connected to the front ends of the pair of second side walls 202A, 202B and the second bottom wall 202D. The second housing 202 has openings at its upper and front ends, and a top panel 3, as shown in FIG. 1, is attached to close the upper end. The configuration of the second housing 202 near the second front frame 202E is the same as that shown in FIG. 1.

[0041] The second grill device 205, which functions as the grill device 5 of the second specification gas stove 201, is a device housed in the second housing 202 as shown in FIG. 14, and is a device that can heat food items inside the second housing 202. As shown in FIG. 14, the second grill device 205 is arranged so that its rear end is adjacent to the back plate portion 202C. As shown in FIG. 14, the second grill device 205 has a second grill chamber 205A that functions as the above-mentioned grill chamber 5A, and a grill burner 54 (FIG. 18) that is a gas burner that heats the inside of the second grill chamber 205A inside the second housing 202.

[0042] The second grill device 205 has a configuration as shown in Figures 16 and 17. In the second grill device 205, the second grill chamber 205A is formed in the shape of a substantially rectangular parallelepiped box, and includes an upper wall portion 206A, a right wall portion 206B, a left wall portion 206C, and a bottom wall portion 206D. A grill opening portion 206E that is rectangular in front view is provided at the front end of the second grill chamber 205A. An upper burner 54A that functions as a grill burner 54 is provided near the upper wall portion 206A. The upper burner 54A forms a flame toward the inside of the grill chamber 5A. A lower burner 54B that also functions as a grill burner 54 is provided below the upper burner 54A.

[0043] The second specification gas stove 201 also has a grill door that functions as the grill door 5B shown in FIG. 1 and is configured to cover the grill opening 206E. A support frame 205C, as shown in FIG. 16, is fixed to the lower back of this grill door. The support frame 205C is a portion that detachably supports the grill grate and the tray. The support frame 205C is supported so that it can move forward and backward by rail mechanisms provided on both the left and right sides of the upper surface of the bottom wall of the second grill chamber 205A. Because of this configuration, the grill door can be pulled out toward the front together with the support frame 205C, and the grill grate and the tray can be simultaneously removed to the outside of the second grill chamber 205A.

[0044] As shown in FIG. 14, the second specification gas stove 201 is not provided with an afterburner similar to the afterburner 180.

[0045] 18 to 20, the second grill chamber 205A includes a second upper constituent part 210 that houses and holds the upper burner 54A (FIG. 20), and a second lower constituent part 220 that is assembled from below to the second upper constituent part 210. The upper constituent part 210 has an upper outer shell part that is made up of an upper wall part 206A, a wall part 212A that forms a part of the upper side of the right wall part 206B, and a wall part 214A that forms a part of the upper side of the left wall part 206C, and the upper burner 54A is held within this upper outer shell part as shown in FIG. The lower component 220 has a lower outer shell portion formed by a bottom wall portion 206D, a wall portion 212B forming part of the lower side of the right wall portion 206B, and a wall portion 214B forming part of the lower side of the left wall portion 206C, and the lower burner 54B is held within this lower outer shell portion.

[0046] As shown in Figures 10, 16 to 20, a second exhaust duct 207 is provided on the rear side of the second grill chamber 205A. As shown in Figure 18, the second exhaust duct 207 has an opening 207B as a gas inlet at its front end, and is configured as a passage that guides gas from this opening 207B to an exhaust port 207A provided at the upper end of the rear side. The second exhaust duct 207 has an exhaust port 207A at its rear and upper end, and is configured to guide smoke generated in the second grill chamber 205A to the exhaust port 207A for exhaust. The exhaust port 207A opens upward and is formed in a substantially rectangular shape that is elongated in the left-right direction in a plan view. The second exhaust duct 207 is formed in a substantially rectangular cylindrical shape that extends from the rear of the second grill chamber 205A at an angle upward and rearward. The space inside the second exhaust duct 207 is connected to the space within the second grill chamber 205A. The combustion exhaust gas generated in the second grill chamber 205A flows upward through the second exhaust duct 207 and is discharged to the outside through the exhaust port 207A.

[0047] 4.Features and Configuration The first grill chamber 105A shares some of its shape with the second specification gas stove 201, which is different from the first specification gas stove 101. Specifically, the first lower component 120 shares a common shape with the second lower component 220. Note that although the illustration of the first lower component 120 and the illustration of the second lower component 220 are slightly different in Figures 7 and 14, the first lower component 120 and the second lower component 220 share a common shape and structure. Therefore, the lower component incorporating the lower burner can be shared between the first specification and the second specification.

[0048] First back plate 102C of gas stove 101 is provided with bulging portion 103 above the vertical center of first back plate 102C, and a portion of catalyst 140 is disposed within bulging portion 103. As shown in FIGS. 6 to 8, bulging portion 103 is configured to bulge outward so that front surface (inner surface) 103A is convex rearward and rear surface (back surface) 103B is convex rearward, and first exhaust duct 107 is disposed adjacent to front surface (inner surface) 103A in bulging portion 103 so that a portion of the rear end of first exhaust duct 107 fits inside front surface (inner surface) 103A that bulges rearward. On the other hand, as shown in FIGS. 14 and 15, second back plate 202C is configured without a bulge toward the rear for fitting second exhaust duct 207. As shown in FIG. 14, the rear end of the second exhaust duct 207 is disposed close to a flat portion that protrudes slightly forward on the second back plate portion 202C.

[0049] In the first and second specifications, the shape of the part below the vertical center position of the first back plate portion 102C and the shape of the part below the vertical center position of the second back plate portion 202C can be a common shape (the same shape as each other).

[0050] Furthermore, in the first and second specifications, the first bottom wall portion and the second bottom wall portion may have a common shape (the same shape as each other), and the pair of first side wall portions and the pair of second side wall portions may also have a common shape (the same shape as each other). Furthermore, the first front frame portion and the second front frame portion may also have a common shape (the same shape as each other).

[0051] 5. Manufacturing of gas stove 1 When manufacturing the gas stove 1, either the first specification or the second specification is selected. Specifically, a first selection step is performed to select whether or not to use the afterburner 180. If the afterburner 180 is to be used, the first specification is selected, and if it is not to be used, the second specification is selected.

[0052] After selecting whether or not to use the afterburner 180 in the first selection step, the type of grill chamber 5A is selected. Specifically, if it is selected in the first selection step that the afterburner 180 is to be used, the first grill chamber 105A is selected as the grill chamber 5A, and if it is selected in the first selection step that the afterburner 180 is not to be used, the second selection step is performed to select the second grill chamber 205A as the grill chamber 5A.

[0053] After the first selection step, a type of exhaust duct 7 is selected. Specifically, when the first grill chamber 105A is selected in the second selection step, that is, when the first specification is selected in the first selection step, the first exhaust duct 107 is selected as the exhaust duct 7, and when the second grill chamber 205A is selected in the second selection step, that is, when the second specification is selected in the second selection step, the second exhaust duct 207 is selected as the exhaust duct 7, in a third selection step.

[0054] After the first selection step, a type of housing 2 is selected. Specifically, if the first exhaust duct 107 is selected in the third selection step, that is, if the first specification is selected in the first selection step, the first housing 102 is selected as the housing 2, and if the second exhaust duct 207 is selected in the second selection step, that is, if the first specification is selected in the first selection step, the fourth selection step is performed to select the second housing 202 as the housing 2.

[0055] After the first, second, third, and fourth selection steps, an assembly step is performed. Specifically, the assembly step is performed to assemble the grill chamber 5A selected in the second selection step and the exhaust duct 7 selected in the third selection step to the housing 2 selected in the fourth selection step.

[0056] 6.Example of effects The above-described gas stove manufacturing method allows the shape of the lower grill compartment to be standardized, making it easier to avoid design changes and an increase in the number of parts when designing and manufacturing gas stoves. Meanwhile, the upper compartment can be configured with either the first upper compartment 110 for a configuration using the afterburner 180 or the second upper compartment 210 for a configuration not using the afterburner 180, making it possible to accommodate different specifications. Furthermore, if the first upper compartment 110 for a configuration using the afterburner 180 and the first exhaust duct 107 with the catalyst 140 installed inside are used, the area between the grill compartment and the exhaust burner tends to be long from front to back, which can easily cause interference with the back panel. However, the first back panel 102C adjacent to the first exhaust duct 107 has a bulge 103, and a portion of the first exhaust duct 107 is positioned within this bulge 103, thereby reducing interference. On the other hand, the second back plate portion 202C is configured without a bulge toward the rear side for receiving the second exhaust duct 207, and therefore, the protrusion toward the rear side can be suppressed accordingly.

[0057] In the above-described method for manufacturing a gas stove, the shape of the underside of first back plate portion 102C and the shape of the underside of second back plate portion 202C can be made common, which makes it easy to standardize the design and process in this area.

[0058] In the manufacturing method of the gas stove described above, the bottom wall and the pair of side walls of the housing can be made common except for the back panel, so it is easy to standardize the design and process in these parts.

[0059] In the manufacturing method of the gas stove described above, part of the catalyst 140 is disposed inside the bulging portion 103, so that interference caused by the catalyst 140 can be easily suppressed and the catalyst area can be easily enlarged.

[0060] <Other embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, any combination of features of the above-described or following embodiments is possible within a range that does not contradict. Furthermore, any feature of the above-described or following embodiments may be omitted unless explicitly stated as essential. Furthermore, the above-described embodiments may be modified as follows.

[0061] In the above-described embodiment, the first and second housings share the bottom wall and the pair of side walls other than the back plate, but they do not need to be completely shared.

[0062] In the above-described embodiment, the first back plate portion and the second back plate portion have the same shape on the lower side, but they do not have to be completely the same.

[0063] It should be noted that the embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is intended to include all modifications within the scope indicated by the claims or the scope equivalent to the claims. [Explanation of symbols]

[0064] 1: Gas stove 1A: Stove body 2: Housing 3: Top plate 5: Grilling device 5A: Grill compartment 5B: Grill door 7: Exhaust duct 51: Stovetop Burner 52: Stovetop Burner 53: Stovetop Burner 54: Grill burner 54A: Upper burner 54B: Lower burner 101: First specification gas stove 102: First enclosure 102A: First side wall part 102B: First side wall part 102C: 1st back plate part 102D: First bottom wall portion 102E: First front frame 103 :bulge 105: First grill device 105A: 1st grill compartment 107: First exhaust duct 107A: Exhaust port 110: Upper component (first upper component) 120: Lower component (first lower component) 140: Catalyst 180: Afterburner 201: Second specification gas stove 202: Second enclosure 202A: First side wall part 202B: First side wall part 202C: 2nd back plate part 202D: 2nd bottom wall part 202E: Second front frame 204: Second exhaust duct 205: Second grill device 205A: Second grill compartment 207: Second exhaust duct 207A: Exhaust port 210: Upper component (second upper component) 220: Lower component (second lower component)

Claims

1. One or more stove burners that emit flames upward; A housing configured to accommodate at least a portion of the stove burner and having an open upper end; a top plate attached to an upper end of the housing and partially closing an opening on the upper end side of the housing; A grill device housed in the housing and having a grill chamber and a grill burner that heats the inside of the grill chamber; An exhaust duct having an exhaust port and guiding smoke generated in the grill chamber to the exhaust port for exhaust; A manufacturing method of a gas stove comprising: a first selection step of selecting whether or not to use an afterburner that heats at least one of smoke and odor components generated in the grill chamber; a second selection step of selecting a first grill cabinet as the grill cabinet when it is selected in the first selection step to use the afterburner, and selecting a second grill cabinet different from the first grill cabinet as the grill cabinet when it is selected in the first selection step not to use the afterburner; a third selection step of selecting a first exhaust duct as the exhaust duct when the first grill chamber is selected in the second selection step, and selecting a second exhaust duct as the exhaust duct when the second grill chamber is selected in the second selection step; a fourth selection step of selecting a first housing as the housing when the first exhaust duct is selected in the third selection step, and selecting a second housing as the housing when the second exhaust duct is selected in the second selection step; an assembling process of assembling the grill chamber selected in the second selection process and the exhaust duct selected in the third selection process to the housing selected in the fourth selection process; Including, The first housing has a box-like shape in which an accommodation space of the first grill chamber is surrounded by a first bottom wall portion, a pair of first side wall portions, a first back plate portion, and a first front frame portion, The second housing has a box-like shape in which an accommodation space of the first grill chamber is surrounded by a second bottom wall portion, a pair of second side wall portions, a second back plate portion, and a second front frame portion, The first grill chamber is configured to include a first upper component that accommodates and holds the grill burner and the afterburner, and a first lower component that is assembled to the first upper component from below, The second grill chamber is configured to include a second upper component that accommodates and holds the grill burner but does not accommodate the afterburner, and a second lower component that is configured to be assembled to the second upper component from below and has a common shape with the first lower component, The first exhaust duct is configured to have a catalyst provided therein, The second exhaust duct is configured so that no catalyst is provided inside. The first back plate portion has a bulging portion provided above a center position of the first back plate portion in a vertical direction, and a part of the first exhaust duct is inserted into the bulging portion, The second back plate portion is configured so as not to have a bulge toward the rear side for allowing the second exhaust duct to enter. How to manufacture a gas stove.

2. The shape of the first back plate portion below the center position in the up-down direction and the shape of the second back plate portion below the center position in the up-down direction are the same shape. A method for manufacturing the gas stove according to claim 1.

3. The first bottom wall portion and the second bottom wall portion have a common shape, The pair of first side wall portions and the pair of second side wall portions have a common shape. A method for manufacturing the gas stove according to claim 1 or 2.

4. A part of the catalyst is disposed in the bulging portion. A method for manufacturing the gas stove according to claim 1 or 2.

5. One or more stove burners that emit flames upward; A housing configured to accommodate at least a portion of the stove burner and having an open upper end; a top plate attached to an upper end of the housing and partially closing an opening on the upper end side of the housing; A grill device housed in the housing and having a first grill chamber and a grill burner that heats the inside of the grill chamber; An afterburner that heats at least one of smoke or odor components generated in the first grill chamber; A first exhaust duct having an exhaust port and guiding smoke generated in the first grill chamber to the exhaust port for exhaust; A gas stove equipped with The first grill chamber is configured to include a first upper component that accommodates and holds the grill burner and the afterburner, and a first lower component that is assembled to the first upper component from below, The first exhaust duct is configured to have a catalyst provided therein, The first grill chamber has a shape that is partially common to a gas stove with specifications different from that of the gas stove, The gas stove of different specifications includes a second grill chamber different from the first grill chamber and a second exhaust duct different from the first exhaust duct, The second grill chamber includes a second upper component that houses and holds the grill burner but does not house the afterburner, and a second lower component that is assembled to the second upper component from below, The second exhaust duct does not have a catalyst installed therein, The first lower component has a common shape with the second lower component. Gas stove.

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