Gas cooking stove

Abstract

To provide a gas cooking stove capable of improving productivity of a top plate.SOLUTION: A gas cooking stove 1 includes a first gas burner 4a for heating an object to be heated, a housing part 2 having an opening part opened to an upper part and having the first gas burner 4a disposed therein, and a top plate part 3 provided to cover an upper part of the opening part. The top plate part 3 has a top plate body part 7 formed of a plate-shaped member in which at least a first opening part 8a and a second opening part 9 are opened, and a reinforcing member 20 arranged on the back surface of the top plate body part 7. The first opening 8a is configured as a burner opening 4a into which the first gas burner 8a is loosely inserted. The reinforcing member 20 is interposed between the first opening 8a and the second opening 9, and is in contact with and directly connected to the back surface of the top plate body portion 7.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a gas stove having a reinforcing member disposed on the underside of the top plate. [Background technology]

[0002] In gas stoves where the top plate is made of a plate-like member such as a metal, there are gas stoves in which a reinforcing member is provided on the underside of the top plate to reduce thermal distortion of the top plate during cooking, as described in Patent Document 1, for example. In this gas stove, when providing the reinforcing member on the underside of the top plate, a fixing member is provided on the underside of the top plate by spot welding, and the reinforcing member is connected to the fixing member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-134312 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a gas stove with this configuration, spot welding of the fixing members to the underside of the top plate results in spot weld marks being visible on the surface of the top plate, which is the exterior surface. Therefore, after the fixing members have been spot welded and before the reinforcing members are attached, the top plate must be subjected to pre-treatment such as polishing to remove the spot weld marks before performing surface treatment such as enamel. This pre-treatment work is time-consuming, and it takes a lot of time to produce the top plate before the reinforcing members are attached, resulting in a problem of reduced productivity of the top plate.

[0005] The present invention has been made in view of the above circumstances, and has an object to provide a gas stove that enables improved productivity of the top plate. [Means for solving the problem]

[0006] A gas stove according to aspect 1 of the present invention is a first gas burner for heating an object to be heated; a housing portion having an open portion at the top and in which the first gas burner is disposed; a top plate portion provided above the open portion; A gas stove equipped with The top plate portion includes a top plate main body portion formed of a plate-like member having at least a first opening and a second opening, and a reinforcing member disposed on a rear surface of the top plate main body portion, the first opening is configured as a burner opening into which the first gas burner is loosely inserted, The reinforcing member is interposed between the first opening and the second opening, and is in contact with and directly connected to the rear surface of the top plate main body.

[0007] With this configuration, the reinforcing member can be directly connected to the back surface of the table top body, eliminating the need to spot-weld a fixing member for connecting the reinforcing member to the back surface of the table top body. This eliminates the need for pre-processing such as removing spot welding marks on the table top body, improving the productivity of the table top body before connecting the reinforcing member.

[0008] A gas stove according to a second aspect of the present invention is the gas stove according to the first aspect, the top plate portion further includes a top plate upper surface arrangement member arranged on an upper surface of the top plate main body portion, the reinforcing member has an abutment portion that abuts against the rear surface of the top plate main body portion, An insertion hole is formed in a contact portion on the back surface of the top plate main body, the contact portion of the reinforcing member contacting the contact portion, The reinforcing member may be directly connected to the rear surface of the tabletop body by a fastener inserted into the insertion hole from the rear surface of the tabletop body.

[0009] With this configuration, the reinforcing member and the top plate main body can be easily and firmly connected simply by abutting the reinforcing member against the back surface of the top plate main body and fastening the fasteners, thereby improving the productivity of the top plate main body.

[0010] A gas stove according to a third aspect of the present invention is the gas stove according to the second aspect, The insertion hole may be formed as a through hole penetrating the front and back of the table top body portion at a position below the table top surface mounting member in the contact portion.

[0011] By forming the insertion holes as through holes as in this configuration, the insertion holes can be formed more easily than by drilling recessed holes in the back surface of the tabletop body, thereby improving the productivity of the tabletop body. Also, the openings of the insertion holes and the tips of the fasteners that are exposed on the surface of the tabletop body through the insertion holes can be concealed by the tabletop upper surface arrangement member, thereby improving the appearance quality of the tabletop body.

[0012] A gas stove according to a fourth aspect of the present invention is the gas stove according to the second or third aspect, The housing is provided with a grill for heating an object to be heated housed in the heating chamber, The grill is configured so that exhaust gas generated in the heating chamber when the object to be heated in the heating chamber is heated passes through an exhaust passage and is discharged to the outside of the heating chamber from an exhaust port of the exhaust passage, The second opening is configured as a grill exhaust port portion that exhausts the exhaust gas discharged from the exhaust port to the outside of the gas stove, The top plate portion further includes an exhaust cover body, the exhaust cover body has an exhaust cover main body portion that covers the upper surface of the top plate main body portion at the peripheral portion of the second opening, and an exhaust port portion that is opened to discharge the exhaust gas, the top plate upper surface arrangement member includes the exhaust cover main body portion, The insertion hole may be formed in the contact portion at a position below the exhaust cover main body portion.

[0013] During cooking, the area around the second opening of the top plate body is subject to the heat of exhaust gas from the grill, while the area around the first opening is subject to the heat of the first gas burner. Therefore, using the grill and the first gas burner can cause significant thermal distortion of the top plate body between the first and second openings. However, with the configuration of the present invention, a reinforcing member can be directly abutted against the back surface of the top plate body between the first and second openings, and the reinforcing member can be firmly fixed with fasteners below the periphery of the second opening where the exhaust cover body is located to prevent movement relative to the top plate body. This improves productivity of the top plate body and reduces the amount of thermal distortion between the first and second openings in the top plate body during cooking.

[0014] A gas stove according to a fifth aspect of the present invention is any one of the second to fourth aspects, The housing is provided with a grill for heating an object to be heated housed in the heating chamber, The grill is configured so that exhaust gas generated in the heating chamber when the object to be heated in the heating chamber is heated passes through an exhaust passage and is discharged to the outside of the heating chamber from an exhaust port of the exhaust passage, The second opening is configured as a grill exhaust port portion that exhausts the exhaust gas discharged from the exhaust port to the outside of the gas stove, The top plate portion further has a first burner ring, The first burner ring has a first burner ring main body portion that covers a gap between the first gas burner and the first opening and an upper surface of the top plate main body portion at a peripheral portion of the first opening, and a first burner opening that is opened to allow the first gas burner to pass through, The top plate upper surface arrangement member includes the first burner ring main body portion, The insertion hole may be formed in the contact portion at a position below the first burner ring main body portion.

[0015] During cooking, the area around the second opening of the top plate body is subject to the heat of exhaust gas from the grill, while the area around the first opening is subject to the heat of the first gas burner. Therefore, using the grill and the first gas burner can cause significant thermal distortion of the top plate body between the first and second openings. However, with the configuration of the present invention, a reinforcing member can be directly abutted against the back surface of the top plate body between the first and second openings, and the reinforcing member can be firmly fixed with fasteners below the periphery of the first opening where the first burner ring body is located to prevent movement relative to the top plate body. This improves productivity of the top plate body and reduces the amount of thermal distortion between the first and second openings in the top plate body during cooking.

[0016] A gas stove according to a sixth aspect of the present invention is the gas stove according to the second or third aspect, The housing is provided with a second gas burner that heats an object to be heated, The second opening is configured as a burner opening into which the second gas burner is loosely inserted, The top plate portion further has a first burner ring and a second burner ring, The first burner ring has a first burner ring main body portion that covers a gap between the first gas burner and the first opening and an upper surface of the top plate main body portion at a peripheral portion of the first opening, and a first burner opening that is opened to allow the first gas burner to pass through, The second burner ring has a second burner ring main body portion that covers a gap between the second gas burner and the second opening and an upper surface of the top plate main body portion at a peripheral portion of the second opening, and a second burner opening that is opened to allow the second gas burner to pass through, The top plate upper surface arrangement member includes the first burner ring body portion and the second burner ring body portion, The insertion hole may be formed in the contact portion at a position below the first burner ring main body portion and / or a position below the second burner ring main body portion.

[0017] During heating of an object to be heated, the top plate body is subject to heat from the first gas burner around the first opening and the second opening around the second opening. Therefore, the use of the first and second gas burners can cause significant thermal distortion between the first and second openings of the top plate body. However, according to the configuration of the present invention, a reinforcing member can be directly abutted against the back surface of the top plate body between the first and second openings, and the reinforcing member can be firmly fixed with fasteners below the periphery of the first opening where the first burner ring body is located and / or below the periphery of the second opening where the second burner ring body is located to prevent movement relative to the top plate body. This improves productivity of the top plate body and reduces the amount of thermal distortion between the first and second openings of the top plate body during cooking.

[0018] As a gas stove according to aspect 7 of the present invention, in any one of aspects 1 to 6, The plate-like member forming the top plate main body may be made of aluminum.

[0019] According to the present invention, even if the table top body is formed from an aluminum plate member that is not suitable for spot welding, the reinforcing member can be directly connected to the back surface of the table top body. Therefore, the productivity of the table top body is improved and the reinforcing member can be easily connected to the back surface of the table top body regardless of the material of the plate member that forms the table top body.

[0020] As a gas stove according to aspect 8 of the present invention, in any one of aspects 1 to 6, The plate-like member forming the top plate main body may be a stainless steel plate-like member.

[0021] According to the present invention, pre-processing such as removing spot welding marks is not required for the tabletop main body portion. Therefore, even if the tabletop main body portion is formed from a stainless steel plate-shaped member and the stainless steel base itself is used as the appearance of the tabletop portion without performing surface treatment such as enamel treatment, the pre-processing can be reduced, thereby improving the productivity of the tabletop main body portion. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a perspective view showing a gas stove according to an embodiment; [Figure 2] FIG. 2 is a schematic plan view showing the upper surface side of the top plate main body. [Figure 3] FIG. 2 is an exploded perspective view showing each component of the top plate portion. [Figure 4] FIG. 2 is a schematic plan view showing the back side of the top plate main body. [Figure 5] 10 is a cross-sectional view showing a state in which a reinforcing member is directly connected with screws to the rear surface of the top plate main body at a position below the exhaust cover main body. FIG. [Figure 6] FIG. [Figure 7] 10 is a schematic plan view illustrating the attachment of a reinforcing member to the rear surface of the top plate body. FIG. [Figure 8] FIG. 10 is a schematic plan view showing another arrangement example (arrangement example 1) of the reinforcing member. [Figure 9] FIG. 10 is a schematic plan view showing another arrangement example (arrangement example 2) of the reinforcing member. [Figure 10] FIG. 10 is a schematic plan view showing another arrangement example (arrangement example 3) of the reinforcing member. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The embodiment shown in Fig. 1 is a built-in type gas stove that is incorporated into a countertop of a system kitchen as an example of a gas stove 1. The gas stove 1 of the embodiment includes a box-shaped housing 2 having an open top, a top plate 3 that is disposed above the open top of the housing 2, a gas burner 4 disposed within the housing 2 and exposed on the top plate 3 for heating objects to be heated (cooking utensils such as pots, food to be cooked, etc.) disposed above, and a grill 5 for heating objects to be heated (food to be cooked, cooking plate, etc.) stored in a heating chamber disposed within the housing 2. In this specification, the longitudinal direction of the top plate 3 is referred to as the left-right direction, the lateral direction of the top plate 3 as the front-rear direction, and the thickness direction of the top plate 3 as the up-down direction.

[0024] Three gas burners 4, 4a, 4b, and 4c, are provided on the top plate 3: two on the left and right sides of the front and one in the center of the rear. A trivet 6 is placed on the top plate 3 at the location of each of the gas burners 4a, 4b, and 4c. The arrangement of the three gas burners 4a, 4b, and 4c does not have to be the triangular arrangement described above, and any other arrangement such as an L-shape may be used. The number of gas burners 4 is also not limited to three, and may be two or less, or four or more.

[0025] The grill 5 is equipped with a heating chamber and a grill burner (not shown), and is configured so that exhaust gas generated in the heating chamber when heating an object to be heated in the heating chamber passes through an exhaust passage connected to the heating chamber and is discharged outside the heating chamber from an exhaust port at the downstream end of the exhaust passage.

[0026] As shown in Figures 2 and 3, the top plate 3 has a rectangular top plate main body 7. In this embodiment, the top plate main body 7 is formed from an aluminum plate member with a plate thickness of 4 mm. Although an aluminum plate member for the top plate main body 7 is not suitable for welding, it has excellent heat dissipation properties and a good external design. Note that the material of the plate member forming the top plate main body 7 can be any material other than aluminum, such as brass or copper, which are not suitable for welding, or stainless steel, which is suitable for welding. The thickness of the plate member can also be set as desired.

[0027] The top plate main body 7 has burner openings 8a, 8b, and 8c into which gas burners 4a, 4b, and 4c are loosely inserted, and a grill exhaust port 9 through which exhaust gas discharged from the exhaust port of the grill 5 is discharged to the outside of the gas stove 1.

[0028] Burner rings 10a, 10b, 10c are provided in the burner openings 8a, 8b, 8c, respectively. The burner rings 10a, 10b, 10c have burner ring main bodies 11a, 11b, 11c that cover the gaps between the gas burners 4a, 4b, 4c and the burner openings 8a, 8b, 8c and the upper surface of the top plate main body 7 at the periphery of the burner openings 8a, 8b, 8c. Burner ring main bodies 11a, 11b, 11c are provided with burner openings 12a, 12b, 12c that are opened to allow the gas burners 4a, 4b, 4c to pass through. The burner ring main body parts 11a, 11b, 11c are attached to the burner openings 8a, 8b, 8c by interposing a ring-shaped sealing member 13 between them and the upper surface of the top plate main body part 7 and fixing them with screws (not shown) to the ring lower members 14a, 14b, 14c arranged on the back surface of the top plate main body part 7.

[0029] An exhaust cover body 15 is disposed on the grill exhaust port 9. The exhaust cover body 15 has an exhaust cover body 16 that covers the upper surface of the top plate main body 7 around the periphery of the grill exhaust port 9. The exhaust cover body 16 has an exhaust port 17 that is opened to discharge exhaust gas. A pair of design members 18 with numerous small holes are placed on the exhaust cover body 16 to cover the exhaust port 17. The exhaust cover body 16 has a bulging portion 19 on the back side that bulges out along the grill exhaust port 9. The exhaust cover body 16 is attached to the grill exhaust port 9 by fitting the bulging portion 19 into the grill exhaust port 9, and is disposed on the upper surface of the top plate main body 7. In this embodiment, the burner ring bodies 11a, 11b, and 11c of the burner rings 10a, 10b, and 10c and the exhaust cover body 16 of the exhaust cover body 15 are examples of "top plate upper surface disposed members" disposed on the upper surface of the top plate main body 7.

[0030] As shown in Fig. 4, a reinforcing member 20 and a frame member 21 are disposed on the back surface of the top plate main body 7. Although not shown in Fig. 4, under-ring members 14a, 14b, and 14c of the burner rings 10a, 10b, and 10c are disposed in the burner openings 8a, 8b, and 8c on the back surface of the top plate main body 7. The frame member 21 is adhesively fixed along the outer edge of the back surface of the top plate main body 7. Note that a back plate member may be provided on the back surface of the top plate main body 7 in an area other than the area where the reinforcing member 20 is disposed.

[0031] The reinforcing member 20 is a long member and is interposed on the back surface of the top plate main body 7 between the rear burner opening 8a and the grill exhaust port 9. The reinforcing member 20 is disposed with its length extending in the left-right direction between the rear burner opening 8a and the grill exhaust port 9, which are close to each other in the front-to-rear direction. In this embodiment, the reinforcing member 20 is disposed in contact with the back surface of the top plate main body 7, along the periphery of the grill exhaust port 9 on the back surface of the top plate main body 7, along the long side of the grill exhaust port 9.

[0032] The portion of the reinforcing member 20 that abuts against the rear surface of the tabletop main body 7 corresponds to the "abutting portion" of the reinforcing member 20, and the portion of the rear surface of the tabletop main body 7 against which the abutting portion of the reinforcing member 20 abuts corresponds to the "contacted portion" of the rear surface of the tabletop main body 7. In addition, in this embodiment, the rear gas burner 4a is an example of the "first gas burner," the burner opening 8a in which the rear gas burner 4a is disposed is an example of the "first opening," and the grill exhaust port 9 is an example of the "second opening."

[0033] As shown in FIGS. 5 and 7 , screw holes 22 (an example of an "insertion hole") are drilled in the back surface of the top plate main body 7, which serves as the contact portion. The reinforcing member 20 is directly connected to the back surface of the top plate main body 7 by threading screws 24 (an example of a "fastener") into fixing holes 23 provided in the reinforcing member 20 and screwing them into the screw holes 22. The screw holes 22 are threaded holes drilled as through-holes that penetrate the top plate main body 7 from front to back. The screw holes 22 are provided on the left and right sides near the left and right corners of the front side of the grill exhaust port 9 (see FIG. 7 ). These screw holes 22 are located below the exhaust cover main body 16, which is a top plate upper surface mounting member disposed on the top surface of the top plate main body 7. Therefore, on the top plate main body 7, the openings of the screw holes 22 and the tips of the screws 24 are covered by the exhaust cover main body 16 (see FIG. 5 ). The exhaust cover main body 16 can cover the screw hole 22 opening on the upper surface of the top plate main body 7 with a relatively high degree of airtightness. The screw hole 22 does not have to be a through hole, but may be a recessed portion that is a recessed hole drilled from the back surface of the top plate main body 7 to partway through the plate thickness. In the case of a recessed portion, the position may be any position on the abutted portion other than the lower position of the exhaust cover main body 16 that is a member disposed on the top surface of the top plate. Furthermore, the insertion hole (22) may not be a screw hole 22, but may be a through hole or recessed portion that is not threaded, and the fastener (24) may be a pin or tapping screw that fits into the through hole or recessed portion.

[0034] Next, a specific configuration of the reinforcing member 20 will be described. As shown in Figure 6, reinforcing member 20 is made of a long angle member obtained by bending a steel plate (for example, 2 mm thick) into an L shape. This reinforcing member 20 has a horizontal plate portion 25 that faces and abuts against the back surface of tabletop main body portion 7, and a vertical plate portion 26 that stands perpendicular to horizontal plate portion 25. The surface portion of horizontal plate portion 25 that abuts against the back surface of tabletop main body portion 7 becomes the "abutment portion" of reinforcing member 20.

[0035] Fixing holes 23 for receiving screws 24 are provided through both ends of the horizontal plate portion 25. One fixing hole 23 is provided on each of the left and right ends of the horizontal plate portion 25, but two (or more) may be provided on each end. Each end of the horizontal plate portion 25 where the fixing holes 23 are provided forms a mounting portion having a protruding portion 27 extending in a generally trapezoidal shape on the long side of the horizontal plate portion 25. Because the protruding portion 27 makes this mounting portion wider than the middle portion of the horizontal plate portion 25, the fixing holes 23 can be positioned anywhere within a wide range in the short direction of the horizontal plate portion 25. Therefore, while the reinforcing member 20 is interposed at a predetermined position between the burner opening 8a and the grill exhaust port 9, the fixing holes 23 of the reinforcing member 20 can be easily positioned at the positions of the screw holes 22 drilled below the exhaust cover main body 16, which is a member disposed on the top surface of the top plate. The protruding portions 27 may not be provided on both ends of the horizontal plate portion 25.

[0036] The reinforcing member 20 has a vertical plate portion 26, which improves its strength against vertical loads. The vertical plate portion 26 has a bent portion 28 formed by bending the middle portion, excluding both end portions, at approximately 90 degrees. The formation of the bent portion 28 prevents damage to objects such as transport means due to contact with the tip of the vertical plate portion 26 when the top plate main body 7 to which the reinforcing member 20 is attached, for example, is transported. Note that the vertical plate portion 26 may be configured without the bent portion 28. Furthermore, the reinforcing member 20 may be any long member other than an L-shaped angle member, such as a long flat plate member or a long flat pipe member.

[0037] Next, the attachment of the reinforcing member 20 to the top panel main body 7 will be described. 7, the reinforcing member 20 is placed in the area between the rear burner opening 8a and the grill exhaust port 9 on the back surface of the top plate main body 7, with the longitudinal direction of the reinforcing member 20 aligned with the left-right direction of the top plate main body 7. At this time, the reinforcing member 20 is aligned along the long side of the grill exhaust port 9 with the convex portions 27 at the mounting portions at both ends facing the grill exhaust port 9, and the horizontal plate portion 25 is abutted against the back surface of the top plate main body 7 that forms the peripheral portion of the grill exhaust port 9.

[0038] The screw holes 22 drilled in the back surface of the top plate main body 7 are provided near the left and right corners on the front side of the grill exhaust port 9, corresponding to the lower position of the exhaust cover main body 16 disposed on the upper surface of the top plate main body 7. Therefore, the reinforcing member 20 is positioned so that the fixing holes 23 provided at both ends of the horizontal plate 25 are aligned with the screw holes 22 near the grill exhaust port 9. In this case, because both ends of the horizontal plate 25 form mounting parts with convex portions 27, the mounting parts can be positioned at the positions of the screw holes 22 near the grill exhaust port 9, and the fixing holes 23 can be easily aligned.

[0039] Then, screws 24 are passed through the left and right fixing holes 23 of the reinforcing member 20 from the back side of the tabletop main body 7 and screwed into the screw holes 22 of the tabletop main body 7. Because the tabletop main body 7 has a thick plate thickness (4 mm in this embodiment), sufficient fastening force of the screws 24 in the screw holes 22 can be ensured. The mounting portion of the reinforcing member 20 has a protruding portion 27 that abuts against the backside of the tabletop main body 7 over a wide area, allowing the screws 24 to be stably fixed. Note that the screws 24 used have a length equal to the combined thickness of the horizontal plate portion 25 of the reinforcing member 20 and the tabletop main body 7. However, as long as they are longer than the thickness of the horizontal plate portion 25, they may be longer or shorter than the combined thickness of the horizontal plate portion 25 and the tabletop main body 7. In this manner, the reinforcing member 20 can be abutted against the backside of the tabletop main body 7 and directly connected and fixed by the screws 24.

[0040] As described above, according to this embodiment, the reinforcing member 20 can be easily connected directly to the back surface of the tabletop main body 7 with the screws 24, eliminating the need to spot-weld a fixing member for connecting the reinforcing member 20 to the back surface of the tabletop main body 7 as in the conventional example (Patent Document 1). Therefore, pre-processing such as removing spot welding marks from the tabletop main body 7 before connecting the reinforcing member 20 is not required, and the task of spot-welding a fixing member to the tabletop main body 7 is also not required, thereby improving the productivity of the tabletop main body 7 before connecting the reinforcing member 20.

[0041] Furthermore, as in this embodiment, even if the tabletop main body 7 is formed from an aluminum plate member that is not suitable for spot welding, the reinforcing member 20 can be directly connected to the back surface of the tabletop main body 7 with the screws 24. This improves the productivity of the tabletop main body 7 and allows the reinforcing member 20 to be easily connected to the back surface of the tabletop main body 7 regardless of the material of the plate member that forms the tabletop main body 7. On the other hand, the tabletop main body 7 may be formed from a stainless steel plate member, so that the stainless steel itself has the appearance of the tabletop 3 without surface treatment such as enamel treatment. Even in this case, as described above, pre-processing such as removing spot welding marks on the tabletop main body 7 can be reduced, thereby improving the productivity of the tabletop main body 7.

[0042] In the conventional example (Patent Document 1), multiple fixing members are used to connect the reinforcing member 20, but in this embodiment, no fixing members are used, thereby reducing the number of parts. On the other hand, for example, if the reinforcing member 20 is adhesively fixed to the back surface of the tabletop main body 7 using an adhesive member, work such as applying the adhesive member before attaching the reinforcing member 20 to the tabletop main body 7 is required, and the adhesive member is also interposed between the back surface of the tabletop main body 7 and the reinforcing member 20. In this embodiment, the tabletop main body 7 and the reinforcing member 20 can be directly connected simply and firmly by simply abutting the reinforcing member 20 against the back surface of the tabletop main body 7 and fastening the screws 24. Therefore, the productivity of the tabletop main body 7 can be improved in this embodiment compared to when the reinforcing member 20 is adhesively fixed.

[0043] In this embodiment, the screw holes 22 provided in the top plate main body 7 are through holes, which makes it easier to form the screw holes 22 than when recessed holes are machined into the back surface of the top plate main body 7, thereby improving the productivity of the top plate main body 7. Furthermore, the openings of the screw holes 22 and the tips of the screws 24 that are exposed on the surface of the top plate main body 7 from the screw holes 22 can be concealed by the exhaust cover main body 16, which is a member disposed on the top surface of the top plate, thereby improving the appearance quality of the top plate 3.

[0044] Furthermore, in the gas stove 1 configured as described above, while heating an object to be heated, the area around the grill exhaust port 9 of the top plate main body 7 is subject to the heat of exhaust gas from the grill 5, and the area around the rear burner opening 8a is subject to the heat of the rear gas burner 4a. Therefore, use of the grill 5 and the rear gas burner 4a can cause significant thermal distortion in the top plate main body 7 between the rear burner opening 8a and the grill exhaust port 9, which are close to each other. However, according to this embodiment, the reinforcing member 20 is brought into direct contact with the back surface of the top plate main body 7 between the rear burner opening 8a and the grill exhaust port 9, and can be firmly fixed with screws 24 below the peripheral edge of the grill exhaust port 9 where the exhaust cover main body 16 is located so that the reinforcing member 20 does not move relative to the top plate main body 7. In this way, reinforcing member 20 is disposed with its longitudinal length extending in the left-right direction between rear burner opening 8a and grill exhaust port 9, which are close to each other in the front-rear direction, and is disposed so as to intersect with a line that is prone to thermal distortion between rear burner opening 8a and grill exhaust port 9 in top plate main body 7. This improves the productivity of top plate main body 7 and reduces the amount of thermal distortion between rear burner opening 8a and grill exhaust port 9 in top plate main body 7 during cooking.

[0045] The reinforcing member 20 may be arranged in the following pattern. In the above embodiment, the reinforcing member 20 is disposed with its longitudinal length extending in the left-right direction along the peripheral edge of the grill exhaust port 9 (second opening). However, the reinforcing member 20 may also be disposed with its longitudinal length extending in the left-right direction along the peripheral edge of the rear burner opening 8a (first opening). In this case, one or more screw holes 22 are provided in the back surface of the top plate main body 7 below the burner ring main body 11a (first burner ring main body), which is a top plate upper surface mounting member attached to the rear burner opening 8a. The opening of the screw hole 22 in the top surface of the top plate main body 7 can be covered with a seal member 13 provided on the underside of the burner ring main body 11a. Furthermore, the fixing hole 23 through which the screw 24 of the reinforcing member 20 is inserted is provided in the center of the horizontal plate portion 25 of the reinforcing member 20, corresponding to the screw hole 22.

[0046] In the case of a two-burner gas stove with two gas burners 4 arranged on the left and right, the reinforcing member 20 can be interposed between the left and right burner openings 8 (first openings) and the grill exhaust port 9 (second opening) on ​​the back surface of the top plate main body 7, with the longitudinal direction of the reinforcing member 20 extending in the left-right direction. In this case, the longitudinal direction of the reinforcing member 20 may be arranged along the periphery of the grill exhaust port 9, or along the periphery of each of the left and right burner openings 8. When the reinforcing member 20 is arranged on the grill exhaust port 9 side, the screw hole 22 drilled in the back surface of the top plate main body 7 is provided below the exhaust cover main body 16 (a member arranged on the top plate upper surface) attached to the grill exhaust port 9. When the reinforcing member 20 is arranged on the left and right burner openings 8 side, the screw hole 22 is provided below each burner ring main body 11 (a member arranged on the top plate upper surface) attached to each of the left and right burner openings 8. In the two-burner gas stove, the grill exhaust port 9 is an example of a "second opening," the left and right gas burners 4 are an example of a "first gas burner," and the burner openings 8 of the left and right gas burners 4 are an example of a "first opening." Corresponding to the left and right gas burners 4, the left and right burner rings 10 are an example of a "first burner ring," the left and right burner ring main bodies 11 are an example of a "first burner ring main body," and the burner openings 12 of the left and right burner ring main bodies 11 are an example of a "first burner opening."

[0047] Furthermore, in the case of a three-burner gas stove (with or without a grill) with two gas burners 4 on the left and right sides of the front and one in the center of the rear, the reinforcing members 20 can be interposed between any of the burner openings 8 on the back surface of the top plate main body 7. The reinforcing members 20 can be arranged, for example, as shown below. Note that, below, the reference numerals assigned to each gas burner, each burner ring and its parts correspond to those in the above embodiment.

[0048] (1) In arrangement example 1, reinforcing member 20 is arranged between rear burner opening 8a and two front left and right burner openings 8b, 8c with the longitudinal direction of reinforcing member 20 extending in the left-right direction. For example, as shown in Figure 8(a), reinforcing member 20 may be arranged with the longitudinal direction along the peripheral edge of each of front left and right burner openings 8b, 8c, or as shown in Figure 8(b), reinforcing member 20 may be arranged with the longitudinal direction along the peripheral edge of rear burner opening 8a. In this case, although the example in Fig. 8(a) shows the positions of the screws 24, the screw holes 22 made in the top plate main body 7 are provided near the rear of the front left and right burner openings 8b and 8c, below the burner ring main bodies 11b and 11c of the respective burner openings 8b and 8c, and the fixing holes 23 through which the screws 24 of the reinforcing member 20 are passed are provided at both ends of the horizontal plate 25 corresponding to the screw holes 22. In the example in Fig. 8(b), shown as the positions of the screws 24, the screw holes 22 made in the top plate main body 7 are provided near the front of the rear burner opening 8a, below the burner ring main body 11a of this burner opening 8a, and the fixing holes 23 through which the screws 24 of the reinforcing member 20 are passed are provided in the middle of the horizontal plate 25 corresponding to the screw holes 22.

[0049] According to the above-mentioned arrangement example 1, the productivity of the top plate main body 7 can be improved, and the reinforcing member 20 can reduce the amount of thermal distortion between the rear gas burner 4a and the two front gas burners 4b, 4c on the left and right sides of the top plate main body 7 during cooking.

[0050] In Arrangement Example 1, the rear gas burner 4a is an example of the "first gas burner," the burner opening 8a of the rear gas burner 4a is an example of the "first opening," the front left and right gas burners 4b and 4c are an example of the "second gas burner," and the burner openings 8b and 8c of the front left and right gas burners 4b and 4c are an example of the "second opening." Corresponding to the rear gas burner 4a, the rear burner ring 10a is an example of the "first burner ring," the rear burner ring main body 11a is an example of the "first burner ring main body," and the burner opening 12a of the rear burner ring main body 11a is an example of the "first burner opening." Corresponding to the left and right gas burners 4b, 4c on the front side, the left and right burner rings 10b, 10c on the front side are examples of "second burner rings," the left and right burner ring main bodies 11b, 11c on the front side are examples of "second burner ring main bodies," and the burner openings 12b, 12c of the left and right burner ring main bodies 11b, 11c on the front side are examples of "second burner openings." The above concept is also applicable to the following arrangement example 2.

[0051] (2) In arrangement example 2, reinforcing member 20 is arranged between rear burner opening 8a and one of the two front left and right burner openings 8b, 8c with the longitudinal direction of reinforcing member 20 extending obliquely. For example, as shown in Fig. 9(a), reinforcing member 20 may be arranged with the longitudinal direction extending obliquely along the periphery of one of the front burner openings 8c and intersecting the straight line connecting rear burner opening 8a and one of the front burner openings 8c, or as shown in Fig. 9(b), reinforcing member 20 may be arranged with the longitudinal direction extending obliquely so as to bridge between rear burner opening 8a and one of the front burner openings 8c. 9(a), the positions of the screws 24 are shown, but one or more screw holes 22 provided in the top plate main body 7 are provided near the rear of one of the front burner openings 8c and below the burner ring main body 11c of this burner opening 8c, and fixing holes 23 for passing the screws 24 of the reinforcing member 20 are provided in the middle of the horizontal plate 25 corresponding to the screw holes 22. In the example of FIG. 9(b), the positions of the screws 24 are shown, but the screw holes 22 provided in the top plate main body 7 are provided near the front of the rear burner opening 8a and near the rear of one of the front burner openings 8c and below the burner ring main body 11a, 11c of each burner opening 8a, 8c, and fixing holes 23 for passing the screws 24 of the reinforcing member 20 are provided at both ends of the horizontal plate 25 corresponding to the screw holes 22.

[0052] According to Arrangement Example 2, the productivity of the top plate main body 7 is improved, and the reinforcing member 20 can reduce the amount of thermal strain between the rear gas burner 4a and the front gas burner 4c in the top plate main body 7 during cooking. In Arrangement Example 2, the reinforcing member 20 may be disposed not only between the rear burner opening 8a and one of the front burner openings 8c, but also between the rear burner opening 8a and the other front burner opening 8b. In the example of FIG. 9(a), the reinforcing member 20 is disposed along the periphery of one of the front burner openings 8c, but the reinforcing member 20 may be disposed with its longitudinal axis extending diagonally along the periphery of the rear burner opening 8a, or may be disposed with its longitudinal axis extending diagonally at an intermediate position between the rear burner opening 8a and one of the front burner openings 8c. In the latter case, the screw hole 22 provided on the back surface of the tabletop main body 7 may be provided as a recessed portion that does not penetrate the tabletop main body 7, so that the hole is not exposed on the top surface of the tabletop main body 7.

[0053] (3) In arrangement example 3, reinforcing member 20 is arranged between left and right burner openings 8b, 8c on the front side. For example, as shown in Fig. 10(a), reinforcing member 20 may be arranged with its length extending in the front-rear direction midway between left and right burner openings 8b, 8c, as shown in Fig. 10(b), or reinforcing member 20 may be arranged with its length extending in the front-rear direction along the periphery of one of the left and right burner openings 8c, as shown in Fig. 10(c), or reinforcing member 20 may be arranged with its length extending in the left-right direction so as to bridge between left and right burner openings 8b, 8c. 10(a) shows the positions of the screws 24, the screw holes 22 provided in the top plate main body 7 are provided in a position below the burner ring main body 11a of the rear burner opening 8a close to the front of the rear burner opening 8a, and on the back surface of the top plate main body 7 at the center of the front end, and fixing holes 23 for passing the screws 24 of the reinforcing member 20 are provided at both ends of the horizontal plate 25 corresponding to the screw holes 22. The screw holes 22 provided on the back surface of the top plate main body 7 at the center of the front end are preferably recessed. 10(b), the positions of the screws 24 are shown, but the screw holes 22 provided in the top plate main body 7 are provided in one or more positions near the side of one of the left and right front burner openings 8c for the burner and below the burner ring main body 11c of this burner opening 8c, and the fixing holes 23 for passing the screws 24 of the reinforcing member 20 are provided in the middle of the horizontal plate 25 corresponding to the screw holes 22. In the example of FIG. 10(c), the positions of the screws 24 are shown, but the screw holes 22 provided in the top plate main body 7 are provided in positions near the side of the left and right front burner openings 8b for the burner and below the burner ring main body 11b for each of the burner openings 8b for the burner, and the fixing holes 23 for passing the screws 24 of the reinforcing member 20 are provided at both ends of the horizontal plate 25 corresponding to the screw holes 22.

[0054] According to the arrangement example 3, the productivity of the top plate main body 7 is improved, and the reinforcing members 20 can reduce the amount of thermal strain between the left and right gas burners 4b, 4c on the front side of the top plate main body 7 during cooking. In the example of Fig. 10(b), each of the two reinforcing members 20 may be arranged along the periphery of each of the left and right burner openings 8b, 8c, with the longitudinal lengths of the reinforcing members 20 extending in the front-to-rear direction.

[0055] In Arrangement Example 3, of the left and right gas burners 4b, 4c on the front side, one gas burner 4b is an example of the "first gas burner" and the other gas burner 4c is an example of the "second gas burner." The burner opening 8b of one gas burner 4b is an example of the "first opening," and the burner opening 8c of the other gas burner 4c is an example of the "second opening." Furthermore, one burner ring 10b of one gas burner 4b is an example of the "first burner ring," the burner ring main body 11b of one burner ring 10b is an example of the "first burner ring main body," and the burner opening 12b of one burner ring main body 11b is an example of the "first burner opening." The other burner ring 10c in the other gas burner 4c is an example of a "second burner ring," the burner ring main body 11c of the other burner ring 10c is an example of a "second burner ring main body," and the burner opening 12c of the other burner ring main body 11c is an example of a "second burner opening." The above-described Arrangement Examples 1 to 3 of the reinforcing member 20 may be arbitrarily combined. Moreover, the arrangement examples of the reinforcing member 20 described in the embodiment may be arbitrarily combined with the above-described Arrangement Examples 1 to 3.

[0056] The present invention is not limited to the above-described embodiments and arrangement examples, and various modifications can be made within the scope of the claims. For example, the gas stove 1 may not be provided with the grill 5. In this case, the top plate main body 7 does not have the grill exhaust port 9, and therefore the reinforcing member 20 can be disposed between any two adjacent burner openings 8 among the plurality of burner openings 8 on the back surface of the top plate main body 7. The gas stove 1 may also be one that does not have the burner ring 10 attached. In this case, when a screw hole 22 is provided near the burner opening 8 on the back surface of the top plate main body 7, the screw hole 22 may be a recessed portion. Also, the trivet 6 may be used as a member disposed on the top surface of the tabletop, and the screw hole 22 provided on the back surface of the tabletop main body 7 may be located below the trivet 6. In this case, a seal member or the like may be provided on the underside of the trivet 6 to cover the screw hole 22 in order to prevent boil-over from entering the screw hole 22. [Explanation of symbols]

[0057] 1 gas stove 2 Housing 3 Top plate 4a, 4b, 4c Gas burner 5 Grill 6 trivet 7 Top plate main body 8a, 8b, 8c Burner openings 9 Grill exhaust port 10a, 10b, 10c Burner Ring 11a, 11b, 11c Burner ring main body 12a, 12b, 12c Burner opening 13 Sealing material 14a, 14b, 14c Ring lower member 15 Exhaust cover body 16 Exhaust cover body 17 Exhaust port 18 Design Components 19 Bulge 20 Reinforcement member 21 Frame members 22 Screw hole (insertion hole) 23 Fixing hole 24 Screws (fasteners) 25 Horizontal plate section 26 Vertical plate part 27 Convex part 28 Bend section

Claims

1. a first gas burner for heating an object to be heated; a housing having an open portion at the top and in which the first gas burner is disposed; a top plate portion provided above the open portion; A gas stove equipped with The top plate portion includes a top plate main body portion formed of a plate-like member having at least a first opening and a second opening, and a reinforcing member disposed on a rear surface of the top plate main body portion, the first opening is configured as a burner opening into which the first gas burner is loosely inserted, The reinforcing member is interposed between the first opening and the second opening, and abuts against and is directly connected to the back surface of the top plate main body.

2. The gas stove according to claim 1, the top plate portion further includes a top plate upper surface arrangement member arranged on an upper surface of the top plate main body portion, the reinforcing member has an abutment portion that abuts against the rear surface of the top plate main body portion, An insertion hole is formed in a contact portion on the back surface of the top plate main body, the contact portion of the reinforcing member contacting the contact portion, A gas stove, wherein the reinforcing member is directly connected to the back surface of the top plate main body by a fastener inserted into the insertion hole from the back surface of the top plate main body.

3. The gas stove according to claim 2, The insertion hole is formed as a through hole that penetrates the front and back of the top plate main body at a position below the top plate upper surface mounting member in the abutment portion.

4. The gas stove according to claim 2 or 3, The housing is provided with a grill for heating an object to be heated housed in the heating chamber, The grill is configured so that exhaust gas generated in the heating chamber when the object to be heated in the heating chamber is heated passes through an exhaust passage and is discharged to the outside of the heating chamber from an exhaust port of the exhaust passage, The second opening is configured as a grill exhaust port portion that exhausts the exhaust gas discharged from the exhaust port to the outside of the gas stove, The top plate portion further includes an exhaust cover body, the exhaust cover body has an exhaust cover main body portion that covers an upper surface of the top plate main body portion at a peripheral portion of the second opening, and an exhaust port portion that is opened to discharge the exhaust gas, the top plate upper surface arrangement member includes the exhaust cover main body portion, The insertion hole is formed in the contact portion at a position below the exhaust cover main body portion.

5. The gas stove according to claim 2 or 3, The housing is provided with a grill for heating an object to be heated housed in the heating chamber, The grill is configured so that exhaust gas generated in the heating chamber when the object to be heated in the heating chamber is heated passes through an exhaust passage and is discharged to the outside of the heating chamber from an exhaust port of the exhaust passage, The second opening is configured as a grill exhaust port portion that exhausts the exhaust gas discharged from the exhaust port to the outside of the gas stove, The top plate portion further has a first burner ring, The first burner ring has a first burner ring main body portion that covers a gap between the first gas burner and the first opening and an upper surface of the top plate main body portion at a peripheral portion of the first opening, and a first burner opening that is opened to allow the first gas burner to pass through, The top plate upper surface arrangement member includes the first burner ring main body portion, The insertion hole is formed in the contact portion at a position below the first burner ring main body portion.

6. The gas stove according to claim 2 or 3, The housing is provided with a second gas burner that heats an object to be heated, the second opening is configured as a burner opening into which the second gas burner is loosely inserted, The top plate portion further has a first burner ring and a second burner ring, The first burner ring has a first burner ring main body portion that covers a gap between the first gas burner and the first opening and an upper surface of the top plate main body portion at a peripheral portion of the first opening, and a first burner opening that is opened to allow the first gas burner to pass through, The second burner ring has a second burner ring main body portion that covers a gap between the second gas burner and the second opening and an upper surface of the top plate main body portion at a peripheral portion of the second opening, and a second burner opening that is opened to allow the second gas burner to pass through, The top plate upper surface arrangement member includes the first burner ring body portion and the second burner ring body portion, A gas stove, wherein the insertion hole is drilled in the abutment portion at a position below the first burner ring main body portion and / or a position below the second burner ring main body portion.

7. The gas stove according to any one of claims 1 to 3, A gas stove, wherein the plate-like member forming the top plate main body is an aluminum plate-like member.

8. The gas stove according to any one of claims 1 to 3, A gas stove, wherein the plate-like member forming the top plate main body is a stainless steel plate-like member.

Images