Gas stove and gridiron used for the same

Abstract

To provide a gas stove capable of improving the degree of freedom for design of an outer peripheral part of a top plate, and a trivet used in the gas stove.SOLUTION: A gas stove 1 comprises: a plurality of burners 22; a top plate 3 that has an outer peripheral part 313 formed around a burner insertion hole 312 through which the plurality of burners 22 are passed; and a trivet 4 configured to cover at least two burners 22 of the plurality of burners 22 together. The trivet 4 has positioning parts 52, 62 that are positioned with respect to at least one of the plurality of outer peripheral parts 313 .SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a gas stove and a trivet used therefor.

Background Art

[0002] Patent Document 1 describes a conventional gas stove. The gas stove (referred to as a "gas cooker" in Patent Document 1) described in Patent Document 1 includes a top plate and a trivet installed on the upper surface of the top plate. A dike portion is formed on the outer peripheral portion of the top plate. The dike portion stands vertically from the central portion of the top plate.

[0003] The trivet is a full-surface trivet that covers the entire surface of the top plate. The trivet has leg pieces for positioning with respect to the dike portion. The leg pieces are formed in a hook shape and are engaged with the dike portion for positioning. As a result, the trivet is installed in a state of being positioned with respect to the top plate.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in the gas stove described in Patent Document 1, the trivet is positioned with respect to the outer peripheral portion of the top plate. For this reason, the outer peripheral portion of the top plate has to be formed into a shape for positioning the trivet, and there is a problem that the degree of freedom in designing the outer peripheral portion of the top plate is limited.

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to provide a gas stove capable of improving the degree of freedom in designing the outer peripheral portion of the top plate and a trivet used therefor.

Means for Solving the Problem

[0007] A gas stove according to one aspect of the present invention includes a plurality of burners, a plurality of burner insertion holes through which each of the plurality of burners passes, and a top plate having a plurality of outer peripheral portions formed around each of the plurality of burner insertion holes to prevent liquid from entering the burner insertion holes, and a trivet configured to cover at least two of the plurality of burners together and attached to the top plate. The trivet has a positioning portion positioned with respect to at least one of the plurality of outer peripheral portions.

[0008] Also, in the gas stove according to the present invention, in the above aspect, it is preferable that the trivet is composed of a plurality of dividable divided bodies, and at least one of the plurality of divided bodies has the positioning portion.

[0009] Also, in the gas stove according to the present invention, in the above aspect, the trivet includes, as the plurality of divided bodies, a front divided body that covers a burner located in front of the center in the front-rear direction of the top plate, and a rear divided body that covers a burner located behind the center in the front-rear direction of the top plate, and it is preferable that a portion of the front divided body corresponding to the center of the burner is displaced in either the front-rear direction with respect to the center in the front-rear direction of the front divided body.

[0010] Also, in the gas stove according to the present invention, in the above aspect, it is preferable that the front divided body is configured such that a portion of the front divided body corresponding to the center of the burner is located behind the center in the front-rear direction of the front divided body.

[0011] Also, in the gas stove according to the present invention, in the above aspect, the trivet has the positioning portion, a placement portion on which a cooking utensil is placed, a frame portion connecting the positioning portion and the placement portion, and a grounding portion provided on the frame portion and resting on the upper surface of the top plate, and it is preferable that the grounding portion is composed of a buffer member.

[0012] Further, in the gas stove according to the present invention, in the above aspect, a concave portion is formed in the outer peripheral portion, and the positioning portion is preferably a tip portion inserted into the concave portion.

[0013] Further, in the gas stove according to the present invention, in the above aspect, the lower end portion of the tip portion is preferably formed in a tapered shape such that the thickness dimension decreases as it approaches the lower end.

[0014] A trivet according to one aspect of the present invention is attached to a top plate having a plurality of burner insertion holes through which each of a plurality of burners passes, and a plurality of outer peripheral portions formed around each of the plurality of burner insertion holes to prevent liquid from entering the burner insertion holes, and is configured to cover at least two of the plurality of burners together. The trivet includes a positioning portion positioned with respect to at least one of the plurality of outer peripheral portions.

Advantages of the Invention

[0015] The gas stove according to the above aspect of the present invention and the trivet used therefor have an advantage that the degree of freedom in the design of the outer peripheral portion of the top plate can be improved.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

MODE FOR CARRYING OUT THE INVENTION

[0017] <Embodiment> Hereinafter, the gas stove 1 according to the present embodiment will be described in detail.

[0018] (1) Overall The gas stove 1 is a stove that uses gas as fuel. The gas stove 1 according to the present embodiment is a built-in stove in which the device main body 2 is dropped into an opening formed in the worktop of the kitchen counter. However, in the present invention, it may be a table stove that is placed on an installation surface (for example, a table, a stove stand, etc.) and used.

[0019] The gas stove 1 is a gas stove with a grill in the present embodiment. According to the gas stove with a grill, the cooked food stored in the grill compartment can be grilled. However, the gas stove 1 according to the present invention does not necessarily have a grill function. As the gas stove 1, instead of the grill function, for example, it may have a multi-grill having a range function, an oven function, or a rice cooker function, or it may have any one of a range, an oven, or a rice cooker.

[0020] Hereinafter, for convenience of explanation, directions are defined based on the usage mode of the gas stove 1. That is, assuming a usage mode in which the user cooks facing the gas stove 1 directly, as shown in FIG. 1, the "left - right direction" is defined. Also, the direction from the gas stove 1 towards the user and along the horizontal plane is defined as the "front direction", the opposite direction is defined as the "rear direction", and the two directions parallel to the front and rear directions are defined as the "front - rear direction". Further, the direction orthogonal to the installation surface (the upper surface of the worktop) is defined as the "up - down direction". However, the definition of these directions is not intended to limit the usage mode of the gas stove 1 according to the present invention.

[0021] As shown in FIG. 1, the gas stove 1 includes a device main body 2 having a plurality (here, three) of burners 22, a top plate 3, and a cooking grate 4.

[0022] (2) Device main body The device main body 2 constitutes the main body of the gas stove 1. The device main body 2 includes a housing 21 and a plurality of devices 22, 23. The gas stove 1 according to the present embodiment has, as a plurality of devices 22, 23, a plurality of burners 22 and a grill device 23.

[0023] (2.1) Housing The housing 21 is a box in which the devices are accommodated in the device main body 2. The housing 21 is formed in a rectangular parallelepiped shape and has an opening surface (not shown) on the upper surface. On the front surface of the housing 21, as shown in FIG. 1, an opening 211 for passing the grill door 231 and an opening 212 for passing an operator 24 for ignition / extinguishing and flame adjustment of each device are formed.

[0024] (2.2) Burner The burner 22 heats a cooking appliance (not shown) placed on the cooking grate 4. The burner 22 is a Bunsen burner that receives the supply of a gas containing gas and performs premixed combustion. A plurality of burners 22 are arranged separately from each other within the housing 21. The main body 2 of the device has, as the plurality of burners 22, two burners 22 located on the front side of the center in the front-rear direction of the top plate 3 and one burner 22 located on the rear side of the center. However, the main body 2 of the device may have, as the plurality of burners 22, two burners 22 separated in the left-right direction, which are located on the rear side of the center in the front-rear direction of the top plate 3 (that is, the main body 2 of the device may have four burners 22).

[0025] Here, the "cooking appliance" referred to in this specification is a tool used during cooking. Examples of the cooking appliance include cooking containers such as pots, clay pots, frying pans, and kettles, as well as grills, heating plates, takoyaki plates, hot sandwich plates, waffle makers, and the like.

[0026] As shown in FIG. 2, the burner 22 includes a burner main body 221, a burner cap 222, a spark plug 224, and a temperature sensor 225. The burner main body 221 constitutes the main body of the burner 22. A gas supply passage (not shown) leading to a fuel gas supply source such as city gas or LP gas is connected to the burner main body 221. The upper end surface of the burner main body 221 is open. The fuel gas supplied from the gas supply passage is mixed with air inside the burner main body 221 and flows toward the opening on the upper end surface. A burner cap 222 is attached to the upper end surface of the burner main body 221 so as to close the opening.

[0027] The burner cap 222 is a component that rests on the upper end surface of the burner main body 221 and forms a plurality of flame ports 226 between it and the upper end surface. A hole 223 is formed in the central portion of the burner cap 222. The temperature sensor 225 is passed through the hole 223 of the burner cap 222.

[0028] The temperature sensor 225 is used to measure the temperature of the cooking appliance placed on the cooking plate 4 and detect the temperature of the food being cooked inside the cooking appliance. The temperature sensor 225 is located at the center of the burner 22 when viewed from above (sometimes referred to as a plan view). As used in this specification, the "center of the burner 22" means the center in the plan view of the portion that protrudes upward from the upper surface of the top plate 3. In this embodiment, it means the center of the hole 223 of the burner cap 222. Therefore, the temperature sensor 225 is located at the center in the plan view of the burner cap 222.

[0029] The upper end of the temperature sensor 225 protrudes upward from the upper end surface of the burner cap 222. The temperature sensor 225 is installed so as to be movable in the vertical direction with respect to the burner cap 222 and elastically displaced. Therefore, when a cooking appliance is placed on the cooking plate 4, the upper end surface of the temperature sensor 225 descends in a state of being in contact with the cooking appliance, and at this time, it elastically contacts the cooking appliance. As a result of the upper end surface of the temperature sensor 225 contacting the cooking appliance, the temperature of the cooking appliance can be measured by processing the electrical signal generated by the temperature sensor 225 by a controller (not shown). As a result, the temperature of the food accommodated in the cooking appliance can be detected.

[0030] (2.3) Grill device The grill device 23 is a device capable of performing grill cooking on the food accommodated in a grill compartment (not shown). The grill device 23 includes a grill compartment (not shown) having an opening surface on the front surface, and a grill door 231 that closes the opening surface of the grill compartment in an openable and closable manner. The grill door 231 is attached via a support mechanism (not shown) so as to be movable in parallel along the front-rear direction with respect to the grill compartment.

[0031] (3) Top plate The top plate 3 is the uppermost plate of the gas stove 1. As shown in FIG. 1, the top plate 3 is formed in a substantially rectangular plate shape. The top plate 3 includes a cooking section 31, an exhaust section 32, and an outer peripheral edge section 33. The top plate 3 according to the present embodiment is composed of a metal plate in which the cooking section 31, the exhaust section 32, and the outer peripheral edge section 33 are integrally formed. Examples of the metal plate include aluminum, hollow, and a fluorine-coated steel plate. However, in the present invention, the top plate 3 is not limited to a metal plate and may be made of, for example, glass.

[0032] (3.1) Cooking section The cooking section 31 is an area for cooking and is an area that can receive liquid (for example, boiling over, splashing, etc.). A trivet 4 is attached to the cooking section 31, and cooking utensils are placed on the trivet 4. As shown in FIG. 2, the cooking section 31 includes a planar receiving section 311 located below the exhaust section 32 and the outer peripheral edge section 33, a plurality of burner insertion holes 312 formed in the receiving section 311, and a plurality of outer peripheral sections 313 formed around each burner insertion hole 312. The burner insertion holes 312 penetrate the top plate 3, and the upper end portions of the burners 22 are passed through.

[0033] The outer peripheral section 313 is formed around the burner insertion hole 312 to prevent liquid from entering the burner insertion hole 312. The outer peripheral section 313 protrudes from the receiving section 311 and can block the liquid received in the receiving section 311 from flowing toward the burner insertion hole 312. The outer peripheral section 313 may be integrally formed with the receiving section 311 or may be formed by attaching a separate member such as a burner ring. In the present embodiment, the outer peripheral section 313 is integrally formed by performing a drawing process on the receiving section 311.

[0034] In the present embodiment, as described above, the outer peripheral section 313 is integrally formed with the receiving section 311, and since it has a structure that makes it easy to wipe off liquid or the like attached to the outer peripheral section 313, the burner insertion holes 312 are exposed. However, when the outer peripheral section 313 is composed of a burner ring or the like, the burner insertion holes 312 may be covered by a cover.

[0035] As shown in Fig. 1, the top plate 3 is attached to the housing 21 of the apparatus main body 2 so as to rest on the upper end of the housing 21. When the top plate 3 is attached to the apparatus main body 2, the upper end portion of the burner 22 is passed through the burner insertion hole 312 and protrudes upward from the upper surface of the outer peripheral portion 313.

[0036] In addition to the function of blocking the above-described liquid, the outer peripheral portion 313 also has a function of positioning the mounting position of the trivet 4 with respect to the top plate 3 by holding the positioning portions 52 and 62 of the trivet 4. The positioning of the trivet 4 by the outer peripheral portion 313 may be realized by contact with the side surface of the outer peripheral portion 313 (the surface standing up from the receiving portion 311), but in the present embodiment, it is realized by inserting the positioning portions 52 and 62 of the trivet 4 into the recesses 314 (Fig. 2) formed in the outer peripheral portion 313.

[0037] As shown in Fig. 2, the recesses 314 are formed at two locations, the front end and the rear end of the outer peripheral portion 313. The recess 314 at the front end opens forward and upward. The recess 314 at the rear end opens rearward and upward. Therefore, when attaching the trivet 4 to the top plate 3, when the positioning portions 52 and 62 of the trivet 4 are inserted into the recesses 314 from top to bottom, as shown in Fig. 3, the positioning portions 52 (62) enter the recesses 314.

[0038] (3.2) Exhaust portion The exhaust portion 32 is a flat plate portion in which an exhaust port for exhausting the exhaust in the grill compartment is formed. The exhaust portion 32 is disposed behind the cooking portion 31 as shown in Fig. 1. An exhaust port cover 321 is detachably attached to the exhaust port.

[0039] (3.3) Outer peripheral edge portion The outer peripheral edge 33 surrounds the outer periphery of the cooking section 31 and is a portion that rises from the outer edge of the cooking section 31. As shown in Fig. 3(A), the outer peripheral edge 33 has a standing portion 331 and a top portion 332. The standing portion 331 rises from the outer edge of the receiving portion 311 (that is, the outer edge of the cooking section 31). The standing portion 331 is inclined with respect to the receiving portion 311 so as to go upward as it goes outward from the edge of the receiving portion 311. The top portion 332 protrudes along the horizontal plane from the upper end of the standing portion 331. The outer end of the top portion 332 is connected to the side end portion 34 of the top plate 3 for the outer peripheral edges 33 on the left and right sides and the front outer peripheral edge 33, and is connected to the exhaust portion 32 (Fig. 1) for the rear outer peripheral edge 33.

[0040] (4) Grill The grill 4 is detachably attached to the top plate 3 and supports the cooking appliance on the burner 22. The grill 4 is configured to cover at least two of the plurality of burners 22 together, and here, it covers three burners 22 together. In this embodiment, the grill 4 is composed of a full-surface grill that covers the entire surface of the cooking section 31.

[0041] The grill 4 is made of metal. Examples of the metal constituting the grill 4 include hollow, stainless steel, etc.

[0042] As shown in Fig. 4, the grill 4 is composed of a plurality (here, two) of dividable divided bodies 5 and 6. Each of the divided bodies 5 and 6 is formed in a substantially rectangular shape in plan view having a longitudinal direction in the left-right direction. Hereinafter, the divided body covering the burner 22 in front of the center in the front-rear direction of the top plate 3 is defined as the "front divided body 5", and the divided body covering the burner 22 behind the center in the front-rear direction of the top plate 3 is defined as the "rear divided body 6".

[0043] (4.1) Front divided body The front split body 5 is a split grate 4 that covers the front burner 22 among the burners 22 arranged in the front-rear direction. Therefore, as shown in FIG. 1, the front split body 5 according to the present embodiment covers both of the pair of left and right front burners 22 together.

[0044] Here, as shown in FIG. 5(A), in the front split body 5, the position corresponding to the center C1 of the burner 22 is displaced in either the front or rear direction with respect to the center C2 in the front-rear direction of the front split body 5. Specifically, in the present embodiment, the position corresponding to the center C1 of the burner 22 in the front split body 5 is located on the rear side of the center C2 in the front-rear direction of the front split body 5.

[0045] Therefore, in the gas stove 1 according to the present embodiment, even when a certain dimension or more is secured from the front end of the top plate 3 in order to move the front burner 22 among the plurality of burners 22 away from the user, the area in front of the burner 22 can be used as an area for placing cooking utensils. By distancing the burner 22 from the user as much as possible, when spillage occurs from the cooking utensil, it is possible to prevent the liquid from reaching the user, and it is possible to suppress the influence of the flame and heat of the burner 22.

[0046] Here, FIG. 5(A) shows a plan view of the state where the front split body 5 is arranged in the correct orientation, and FIG. 5(B) shows a plan view of the state where the front split body 5 is installed in the opposite front-rear orientation. As described above, in the front split body 5, when the position corresponding to the center C1 of the burner 22 is displaced in either the front or rear direction with respect to the center C2 in the front-rear direction of the front split body 5, when a cooking utensil is placed directly above the burner 22, there is an advantage that it is easy to place other cooking utensils at other positions of the grate 4.

[0047] And if the front split body 5 is installed in the opposite front-rear orientation (this may be referred to as "misinstallation"), as shown in FIG. 5(B), since a part of the front split body 5 enters the installation area of the rear split body 6, the user cannot install the rear split body 6, and it is possible to surely know the misinstallation of the front split body 5.

[0048] As shown in FIG. 4, the front split body 5 includes a frame portion 51, a plurality of positioning portions 52, a plurality of mounting portions 53, and a plurality of grounding portions 56.

[0049] (4.1.1) Frame portion The frame portion 51 is a skeletal portion that connects the positioning portion 52 and the plurality of mounting portions 53. The frame portion 51 includes a frame portion 511, a connecting portion (first connecting portion 512) that connects the frame portion 511 and the mounting portion 53, and a connecting portion (second connecting portion 513) that connects the frame portion 511 and the positioning portion 52.

[0050] The frame portion 511 is formed in a substantially rectangular frame shape in plan view. The frame portion 511 surrounds a pair of left and right burners 22 on the front side among the plurality of burners 22. The lower surface of the frame portion 511 faces the upper surface of the cooking portion 31 of the top plate 3. When the front split body 5 is attached to the top plate 3, the front side of the frame portion 511 is along the front outer peripheral edge portion 33 of the outer peripheral edge portion 33 of the top plate 3, both sides in the left - right direction of the frame portion 511 are along the left - right outer peripheral edge portions 33 of the outer peripheral edge portion 33 of the top plate 3, and the rear side of the frame portion 511 is along the center in the front - rear direction of the cooking portion 31.

[0051] The cross - sectional shape of the frame portion 511 is not particularly limited, and examples include a vertically long rectangular shape, a circular shape, a rounded rectangular shape, a flat plate shape, a pipe shape, etc. Here, it is formed in a rounded rectangular shape (4 mm in width and 10 mm in length).

[0052] The first connecting portion 512 rises from the frame portion 511 and supports the plurality of mounting portions 53. Each first connecting portion 512 is formed in a plate shape and is fixed to the frame portion 511 by welding. Note that the fixing of the frame portion 511 and the first connecting portion 512 is not limited to welding, and may be realized by, for example, fitting, cutting, screwing, etc.

[0053] The second connecting portion 513 can position the frame portion 511 at the correct position by connecting the positioning portion 52 and the frame portion 511, and being positioned by the positioning portion 52 with respect to the outer peripheral portion 313. The second connecting portion 513 extends from the frame portion 511 toward the outer peripheral portion 313 and fixes the positioning portion 52 to the frame portion 511.

[0054] (4.1.2) Positioning portion The positioning portion 52 is a portion positioned with respect to the outer peripheral portion 313 of the top plate 3. As shown in FIG. 3, the positioning portion 52 is composed of a tip portion inserted into the concave portion 314 of the outer peripheral portion 313. The front split body 5 has two positioning portions 52 with respect to one burner 22. The two positioning portions 52 are located on a straight line passing through the center of the burner 22 and face each other. Here, the positioning portion 52 inserted into the front concave portion 314 is referred to as the "first positioning portion 521", and the positioning portion 52 inserted into the rear concave portion 314 is referred to as the "second positioning portion 522". When the first positioning portion 521 is inserted into the front concave portion 314 and the second positioning portion 522 is inserted into the rear concave portion 314, the hearth 4 is positioned in both the front-rear direction and the left-right direction.

[0055] Further, as shown in FIG. 3(B), each positioning portion 52 is formed in a tapered shape such that the thickness decreases as it approaches the lower end. In the present embodiment, only the lower end portion of the positioning portion 52 is formed in a tapered shape. However, for example, it may be formed in a tapered shape from the center in the vertical direction toward the lower end, or may be formed in a tapered shape from the upper end to the lower end. Since the positioning portion 52 is formed in a tapered shape, it can be smoothly inserted into the concave portion 314.

[0056] (4.1.3) Mounting portion The mounting portion 53 is a portion on which the cooking appliance is mounted. The upper end surfaces of the plurality of mounting portions 53 are located on the same plane. As shown in FIG. 4, the mounting portion 53 includes a plurality of claw portions 54 radially arranged from the center of the burner 22 and an auxiliary portion 55 forming the mounting portion 53 other than the claw portions 54.

[0057] As shown in FIG. 3(A), the claw portion 54 is formed in a tapered shape such that the vertical width dimension decreases as it goes toward the tip on the central side of the burner 22. As shown in FIG. 4, the auxiliary portion 55 is composed of a combination of a plurality of vertical members 551 extending in the front-rear direction and a plurality of horizontal members 552 extending in the left-right direction. The plurality of vertical members 551 and the plurality of horizontal members 552 are formed, for example, in a lattice shape.

[0058] (4.1.4) Grounding portion The plurality of grounding portions 56 are portions that rest on the upper surface of the top plate 3 (more specifically, the receiving portion 311) in the trivet 4. The grounding portion 56 is composed of a buffer member. The buffer member suppresses the generation of contact sounds between members when the trivet 4 contacts the top plate 3. The buffer member is preferably made of a material softer than the metal constituting the frame portion 51, and examples thereof include elastomers, soft synthetic resins, hard synthetic resins, resin foams, wood, cloth, etc.

[0059] The grounding portion 56 is provided on the frame portion 51. The plurality of grounding portions 56 are attached at intervals along the frame portion 511. The plurality of grounding portions 56 according to the present embodiment are attached to the frame portion 511. The attachment of the grounding portion 56 to the frame portion 511 is realized, for example, by adhesion, fitting, welding, soldering, two-color molding, screwing, pinning, riveting, snap-fit structure, winding, etc.

[0060] In a state where the cooking utensil is not placed on the trivet 4, the grounding portion 56 rests on the receiving portion 311, and a gap is formed between the lower end surface excluding the grounding portion 56 and the upper surface of the top plate 3. For this reason, when the trivet 4 is installed on the top plate 3 or a cooking utensil is placed on the trivet 4, the generation of contact sounds between members caused by the contact between the trivet 4 and the top plate 3 is suppressed.

[0061] Here, the first connecting portion 512 that supports the placement portion 53 is connected to a portion between adjacent grounding portions 56 in the frame portion 511. For this reason, when a cooking appliance is placed on the placement portion 53 (for example, the claw portion 54), the load is applied to the frame portion 511 via the first connecting portion 512, and the portion between the grounding portions 56 in the frame portion 511 can bend. When the frame portion 511 bends, the placement portion 53 approaches the burner 22, which affects the combustion performance.

[0062] Therefore, in the trivet 4 according to the present embodiment, as shown in FIG. 6, a regulating surface 571 is formed between the lower surface of the grounding portion 56 and the lower surface of the frame portion 511. Note that FIG. 6 is an explanatory diagram comparing the height positions of both in order to explain the height relationship between the cross section of the grounding portion 56 and the cross sections of the frame portion 511 and the regulating surface 571.

[0063] As shown in FIG. 6, the dimension L2 between the regulating surface 571 and the lower surface of the grounding portion 56 is smaller than the dimension L1 between the lower surface of the frame portion 511 and the lower surface of the grounding portion 56. Therefore, since the regulating surface 571 is located between the lower surface of the grounding portion 56 and the lower surface of the frame portion 511, even if the portion between the grounding portions 56 in the frame portion 511 bends, the regulating surface 571 contacts the top plate 3, preventing the frame portion 511 from bending further. For this reason, when installing the trivet 4, while suppressing the generation of contact sounds between members, it is possible to minimize the bending of the portion between the grounding portions 56 in the frame portion 511.

[0064] As shown in FIG. 6, the regulating surface 571 is composed of the lower surface of a regulating portion 57 that protrudes downward from the lower ends of the first connecting portion 512 and the second connecting portion 513. By providing the regulating portion 57 on the first connecting portion 512 and the second connecting portion 513, it can be positioned between adjacent grounding portions 56. Note that FIG. 6 shows that the regulating portion 57 is provided for the first connecting portion 512 and the second connecting portion 513 that support the claw portion 54, but the regulating portion 57 is also provided at the lower end of the first connecting portion 512 that supports the auxiliary portion 55.

[0065] Note that the restricting part 57 may be provided not only in the first connecting part 512 and / or the second connecting part 513, but also, for example, in the frame part 511. Further, although the restricting surface 571 is formed in a planar shape, the shape is not particularly limited, and may be, for example, an arc shape, a spherical shape, a linear shape, a dot shape, or the like.

[0066] Since the restricting surfaces 571 are provided at a plurality of locations, for example, even if the user removes and loses the grounding part 56 for some reason, the cooking plate 4 can be grounded by the plurality of restricting surfaces 571. Therefore, compared with the case of grounding with the frame part 511, the change in the distance between the cooking appliance and the burner 22 is small, and the influence on the combustion performance can be reduced.

[0067] (4.2) Rear split body The rear split body 6 is a split cooking plate 4 that covers the burner 22 located at the rear among the burners 22 arranged in the front-rear direction. The rear split body 6 is different from the front split body 5 in that the portion corresponding to the burner 22 is formed at the center in the left-right direction, but is the same in that it includes a frame part 61, a plurality of positioning parts 62, a plurality of placing parts 63, a plurality of grounding parts 64, and a restricting part 65. Therefore, the overlapping description will be omitted below.

[0068] The rear split body 6 has a plurality of positioning parts 62 and is positioned with respect to the outer peripheral part 313 of the burner 22 located at the rear. However, the positioning part 62 of the rear split body 6 may not be provided. When the positioning part 62 is not provided, the rear split body 6 can be positioned by bringing the front end of the frame part into contact with the rear end of the frame part 511 of the front split body 5.

[0069] (5) Effects As described above, in the gas stove 1 according to the present embodiment, the cooking plate 4 that covers at least two of the plurality of burners 22 together has a positioning part 52 (62) that is positioned with respect to at least one of the plurality of outer peripheral parts 313.

[0070] In the gas stove 1 according to the present embodiment, since the cooking grate 4 can be positioned with respect to the outer peripheral portion 313, the degree of freedom in the design of the outer peripheral portion of the top plate can be improved. Further, since the cooking grate 4 is positioned with respect to the outer peripheral portion 313 close to the burner 22, the positional relationship between the cooking grate 4 and the burner 22 can be accurately maintained, and the installation state of the cooking grate 4 hardly affects the combustion performance.

[0071] Further, in the gas stove 1 according to the present embodiment, since the cooking grate 4 (full-surface cooking grate) positioned with respect to the outer peripheral portion 313 is used, the cooking grate 4 (sometimes referred to as "individual cooking grate 7") installed for each burner 22 as shown in FIG. 7 can also be used. Therefore, since the gas stove 1 having the cooking grate 4 according to the user's preference can be manufactured using the common top plate 3, the manufacturability is high and the inventory management is easy.

[0072] The individual cooking grate 7 includes a ring-shaped cooking grate frame 71 surrounding the outer peripheral portion 313, a plurality of cooking grate claws 72 fixed to the cooking grate frame 71 and arranged radially, and a pair of positioning portions 73 provided on the front and rear cooking grate claws 72. The pair of positioning portions are inserted into the concave portion 314 of the outer peripheral portion 313, whereby the individual cooking grate 7 is positioned with respect to the outer peripheral portion 313.

[0073] Further, in the gas stove 1 according to the present embodiment, since the cooking grate 4 is composed of a plurality of divided bodies, it can be made easier to handle during maintenance.

[0074] Further, in the gas stove 1 according to the present embodiment, since the portion corresponding to the center C1 of the burner 22 of the front split body 5 is displaced in either the front-rear direction with respect to the center C2 in the front-rear direction of the front split body 5, even when a cooking utensil is placed at the position heated by the burner 22, it is easy to place other cooking utensils at other positions on the cooking grate 4.

[0075] In particular, since the front split body 5 is configured such that the portion corresponding to the center C1 of the burner 22 of the front split body 5 is located behind the center C2 in the front-rear direction of the front split body 5, when misinstalled, the rear end portion of the front split body 5 enters the installation area of the rear split body 6. Therefore, the rear split body 6 cannot be installed, and the user can surely know that the front split body 5 is misinstalled.

[0076] Further, since the grounding portions 56 and 64 of the trivet 4 according to the present embodiment are formed of buffer members and rest on the upper surface of the top plate 3, when the trivet 4 is installed on the top plate 3, it is possible to suppress the contact between the trivet 4 and the top plate 3 and the generation of contact sounds between the members.

[0077] Moreover, since the positioning portion 52(62) of the trivet 4 is the tip portion that is inserted into the recess 314, the contact portion between the positioning portion 52(62) and the outer peripheral portion 313 can be made as small as possible, and the generation of contact sounds between the members can be suppressed as much as possible.

[0078] Further, since the lower end portion of the tip portion constituting the positioning portion 52(62) is formed in a tapered shape such that the thickness dimension becomes smaller as it approaches the lower end, the positioning portion 52(62) can be smoothly inserted into the recess 314.

[0079] Moreover, since a restricting portion is formed between adjacent grounding portions 56, it is possible to minimize the bending of the portion between the grounding portions 56 in the frame portion 511.

[0080] <Modification Example> The above embodiment is merely one of various embodiments of the present invention. The embodiment can be variously modified according to design and the like as long as the object of the present invention can be achieved. Hereinafter, a modification example according to the above embodiment will be described.

[0081] (1) Modification Example 1 In the fire grate 4 according to the above embodiment, the grounding portions 56 and 64 are attached to the frame portion 511. However, in the modification 1, the grounding portions 56 and 64 are attached to the first connecting portion 512 that supports the placement portion 53, as shown in FIG. 8.

[0082] The grounding portions 56 and 64 according to the modification 1 include a foot portion 561 along the lower end of the first connecting portion 512 and a locking portion 562 integrally formed with the foot portion 561, as shown in FIG. 9. A groove 514 into which the locking portion 562 fits is formed at the lower end of the first connecting portion 512. Note that the fire grate 4 has a regulating surface 571, similar to the above embodiment. The regulating surface 571 is constituted by the lower end surface of a regulating portion 57 provided at the lower end of the first connecting portion 512 (indicated by reference numeral A in FIG. 10) located between adjacent grounding portions 56 and 64.

[0083] In this way, the grounding portions 56 and 64 may be provided not only on the frame portion 511 but also on the first connecting portion 512. Although not particularly shown, the grounding portions 56 and 64 may be provided on the second connecting portion 513.

[0084] (2) Other modifications Hereinafter, modifications of the embodiment will be listed. The modifications described below can be applied in appropriate combinations.

[0085] In the gas stove 1 according to the above embodiment, a plurality of burners 22 separated into a front side and a rear side are provided with respect to the center in the front-rear direction of the top plate 3. However, in the present invention, the plurality of burners 22 may not be separated into a front side and a rear side with respect to the center in the front-rear direction of the top plate 3. For example, two or more burners 22 may be arranged in the left-right direction along the center in the front-rear direction of the top plate 3.

[0086] The top plate 3 according to the above embodiment is constituted by a metal plate in which the cooking portion 31, the exhaust portion 32, and the outer peripheral edge portion 33 are integrally formed. However, in the present invention, the cooking portion 31 may be made of glass, and the outer peripheral edge portion 33 and the exhaust portion 32 may be made of metal, and there is no particular limitation on the material.

[0087] In the gas stove 1 according to the above-described embodiment, the positioning portions 52 and 62 are constituted by the tip portions, and by being inserted into the concave portion 314 of the outer peripheral portion 313, the positioning with respect to the outer peripheral portion 313 of the trivet 4 is realized. However, in the present invention, the positioning portions 52 and 62 may be constituted by a ring-shaped frame member surrounding the periphery of the outer peripheral portion 313.

[0088] The front split body 5 according to the above-described embodiment includes the first positioning portion 521 and the second positioning portion 522 that are separated in the front-rear direction. However, only one of the first positioning portion 521 and the second positioning portion 522 may be provided. In this case, the outer peripheral portion 313 may have a structure including only one concave portion 314. Further, the front split body 5 may include three or more positioning portions as a plurality of positioning portions.

[0089] In the front split body 5 according to the above-described embodiment, the first positioning portion 521 and the second positioning portion 522 are separated from each other in the front-rear direction with respect to one burner 22. However, for example, they may be separated from each other in the left-right direction. Further, the first positioning portion 521 and the second positioning portion 522 are located on a straight line passing through the center of the burner 22. However, for example, the first positioning portion 521 and the second positioning portion 522 may be positioned at a position where the angle formed by the straight line connecting the first positioning portion 521 and the center of the burner 22 and the straight line connecting the second positioning portion 522 and the center of the burner 22 is 90°.

[0090] The trivet 4 according to the above-described embodiment is constituted by a full-surface trivet that covers the entire surface of the cooking portion 31. However, in the present invention, the rear split body 6 may be made to correspond only to the periphery of the rear burner 22, and the trivet may be constituted by a trivet that does not cover the regions on both sides in the left-right direction of the rear burner 22 and is located behind the center in the front-rear direction of the top plate 3. Further, the trivet 4 may be constituted by a combination of the front split body 5 and the individual trivet 7.

[0091] The trivet 4 according to the above-described embodiment is constituted by a split body that is split in the front-rear direction. However, for example, it may be constituted by a split body that is split in the left-right direction. In this case, each split body is formed, for example, in a substantially rectangular shape in plan view having a longitudinal direction in the front-rear direction.

[0092] The top plate 3 according to the above embodiment had the outer peripheral edge portion 33 rising from the cooking portion 31, but the outer peripheral edge portion 33 may not rise from the cooking portion 31. When the cooking portion 31 is composed of a glass plate, the outer peripheral edge portion 33 may be composed of a frame material that protects the end face of the glass plate. In this case, the upper end of the frame material may be formed at the same height as the upper end of the end face of the glass plate.

[0093] In the trivet 4 according to the above embodiment, the grounding portions 56 and 64 were partially provided in the circumferential direction of the frame portion 511. However, for example, they may be provided over the entire length in the circumferential direction of the frame portion 511.

[0094] The front split body 5 according to the above embodiment was configured to cover two burners, but the front split body 5 may be configured to be divisible in the left - right direction.

[0095] In the front split body 5 according to the above embodiment, the position corresponding to the center C1 of the burner 22 was located behind the center C2 in the front - rear direction of the front split body 5. However, the position corresponding to the center C1 of the burner 22 may be located in front of the center C2 in the front - rear direction of the front split body 5. In this case, when a cooking utensil is placed directly above the front burner 22, there is an advantage that it is easy to place another cooking utensil behind the said cooking utensil. In this case, even if the front split body 5 is misinstalled, a gap is generated between the rear end of the front split body 5 and the rear split body 6, so the user can easily know the misinstallation of the trivet 4.

[0096] In the gas stove 1 according to the present embodiment, the positioning portion 52 is formed on both the front split body 5 and the rear split body 6. However, in the present invention, it may be formed on at least one of the plurality of split bodies. Also, when covering a plurality of burners 22 in one split body, the positioning portion 52 may be positioned with respect to the outer peripheral portion 313 corresponding to at least one burner 22.

[0097] In this specification, expressions with "substantially", such as "substantially parallel" or "substantially orthogonal", may be used. For example, "substantially parallel" means being substantially "parallel", and includes not only a strictly "parallel" state but also a state with an error of about several degrees. The same applies to other expressions with "substantially".

[0098] In addition, in this specification, expressions distinguished by the presence or absence of "... part", such as "end part" and "end", are used. For example, "end" means the end part of an object, while "end part" means a region having a certain range including the "end". Any point within a certain range including the end is regarded as an "end part". The same applies to other expressions with "... part".

Explanation of Reference Numerals

[0099] 1 Gas stove 22 Burner 3 Top plate 312 Burner insertion hole 313 Outer peripheral part 314 Concave part 4 Grid 5 Front side divided body 51 Frame part 511 Frame portion 52 Positioning part 53 Placing part 56 Grounding part 6 Rear side divided body 61 Frame part 62 Positioning part 63 Placing part 64 Grounding part

Claims

1. A plurality of burners, a top plate having a plurality of burner insertion holes through which each of the plurality of burners passes, and a plurality of outer peripheral portions formed around each of the plurality of burner insertion holes to prevent liquid from entering the burner insertion holes, a trivet configured to cover at least two of the plurality of burners together and attached to the top plate, comprising: the trivet is composed of a plurality of dividable divided bodies, the trivet has, as the plurality of divided bodies, a front-side divided body that covers a burner located in front of the center in the front-rear direction of the top plate and a rear-side divided body that covers a burner located behind the center in the front-rear direction of the top plate, the trivet has a positioning portion in which at least the front-side divided body is positioned with respect to at least one of the plurality of outer peripheral portions, a gas stove, wherein a portion of the front-side divided body corresponding to the center of the burner is configured to be located behind the center in the front-rear direction of the front-side divided body.

2. The trivet has the positioning portion, a placement portion on which a cooking utensil is placed, a frame portion connecting the positioning portion and the placement portion, and a grounding portion provided on the frame portion and resting on the upper surface of the top plate, wherein the grounding portion is composed of a buffer member. The gas stove according to claim 1.

3. A recess is formed in the outer peripheral portion, and the positioning portion is a tip portion inserted into the recess. The gas stove according to claim 1 or 2.

4. The lower end portion of the tip portion is formed in a tapered shape such that the thickness dimension decreases as it approaches the lower end. The gas stove according to claim 3.

5. A trivet attached to a top plate having a plurality of burner insertion holes through which each of a plurality of burners passes and a plurality of outer peripheral portions formed around each of the plurality of burner insertion holes to prevent liquid from entering the burner insertion holes, the trivet being configured to cover at least two of the plurality of burners together, which is composed of a plurality of dividable divided bodies, the trivet has, as the plurality of divided bodies, a front-side divided body that covers a burner located in front of the center in the front-rear direction of the top plate and a rear-side divided body that covers a burner located behind the center in the front-rear direction of the top plate. At least the front split body has a positioning portion that is positioned with respect to at least one of the plurality of outer peripheral portions. The portion of the front split body corresponding to the center of the burner is configured to be located on the rear side of the center in the front-rear direction of the front split body, a hearth.

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