gas stove

Abstract

To provide a gas cooking stove which can indicate ignition state on a ceiling plate without using electrical components.SOLUTION: A ceiling plate comprises five window parts 25, a holding cylinder 31, a rotating shaft 32, a bimetal 33 and an indicator plate 34. The bimetal 33, which is of a spiral shape, is held in the holding cylinder 31, with its inner end part fixed to the rotating shaft 32 and an outer end part fixed to the inside of the holding cylinder 31. The indicator plate 34 extends frontward from the rotating shaft 32 and rotates integrally with the rotating shaft 32 below the window parts 25. Five ignition indicating marks 50 are arranged on an upper face of the indicator plate 34. When a right burner 4 is extinguished, the five ignition indicating marks 50 are arranged at positions that do not face the five window parts 25. When the right burner 4 is ignited, the inner end part turns counterclockwise due to heating of the bimetal 33. In response to it, the rotating shaft 32 and the display plate 34 integrally turn, such that the five ignition display marks 50 are arranged at positions facing the five window parts 25.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a gas stove. [Background technology]

[0002] Conventionally, gas stoves have a front panel with an ignition switch, and the front panel is equipped with an ignition lamp that lights up when ignited to indicate the ignition state. However, because the front panel faces forward, the light from the ignition lamp is difficult for the user to see while cooking. To solve this problem, gas stoves are known that have a display unit such as an LCD or lamp on the top panel (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-26306 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the gas stove requires an LCD display, lamps, and other electrical components, resulting in problems such as a shorter battery life and an increased number of assembly steps due to the need to connect harnesses. To address these issues, it is conceivable to use temperature-sensitive ink, which changes color with temperature, in the ignition indicator. This would appear to solve the above problems because it would be possible to indicate the ignition state without consuming power. However, with temperature-sensitive ink, if the component to which the ink is applied has a large heat capacity, it takes time for the temperature to rise to the color-changing range, resulting in a lack of responsiveness. Furthermore, if the ink is overheated, it may no longer change color, potentially preventing it from properly indicating that the ignition state is active.

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide a gas stove that can display the ignition status on the top plate without using any electrical components. [Means for solving the problem]

[0006] The gas stove of claim 1 is a gas stove having a top plate through which a stove burner is provided, wherein the top plate is Located in front of the stove burner, Visible below Multiple a window portion; Multiple The light source is supported below the window so as to be movable in a direction parallel to the top plate, and indicates the ignition state. Multiple a display plate having a mark on an upper surface facing the window portion; Spiral or helical and a bimetal formed on the burner, which is provided adjacent to the burner. It extends in the vertical direction, The bimetal Store it away Hold Hold tube and the holding The holding cylinder is provided inside the cylinder. The bimetal is held by outer end a fixing portion for fixing the position of the a rotating shaft that is supported within the retaining cylinder so as to be rotatable about its axis, that passes through the center of the bimetal, and that is supported so as to be rotatable about its axis; Equipped with The plurality of window portions are arranged at intervals on an arc centered near the front side of the stove burner, and the window portions are rectangular in shape that is long in the radial direction of the arc. The display plate is integral with the rotating shaft and is a plate formed in a roughly fan-like shape in a plan view, the width of which increases in the left-right direction as it moves from the rotating shaft to the front. The rotating shaft is located at the center of the arc along the arrangement of the plurality of window portions, and the inner end of the bimetal on the center side is fixed to the rotating shaft. When the bimetal is heated by the flame of the stove burner, the bimetal fixed to the fixing portion outer end Based on Around the rotation axis By displacing At the inner end via the rotating shaft The fixed display board Rotation configured to the plurality of marks are the same in number as the plurality of window portions, have rectangular shapes elongated in the radial direction of the display plate, and have the same shape as the plurality of window portions, and are arranged side by side in the same arrangement as the arrangement of the plurality of window portions; The aforementioned Multiple mark Each of When the stove burner is not ignited, a position shifted in the circumferential direction from directly below the plurality of window portions, Window Each of The bimetal is heated by the flame of the stove burner, and the display plate is Rotating around the rotation axis When the non-relative position is Multiple Window section Each It is characterized by being arranged in a relative position facing the lower side.

[0007]

[0008] [Effects of the Invention]

[0009] According to the gas stove of claim 1, when the bimetal is heated by the flame of the burner, it displaces relative to one end fixed to the fixed part, causing the display panel to move. As a result, when viewed from above through the window provided in the top plate, the hidden mark moves to the lower part of the window and becomes visible. This allows the mark indicating the ignition status to be displayed on the top plate without using electrical components. For example, in a battery-powered gas stove, battery consumption can be reduced. Furthermore, the use of a bimetal allows the stove to directly or indirectly receive the heat of the burner flame, making it easier to compensate for temperature differences and achieving quick response. Furthermore, the use of a bimetal allows the mark to move to the lower part of the window and become visible through mechanical operation, preventing it from detaching from the lower part of the window even if it becomes overheated. Furthermore, since no harness connection is required, the assembly process is reduced compared to stoves that use a large number of electrical components. The mark may be a figure, symbol, code, insignia, emblem, design, etc.

[0010] moreover The outer end of the spiral or helical bimetal is fixed to a fixed part, and the inner end is fixed to a rotating shaft. The rotating shaft is rotatably supported and passes through the center of the bimetal. The display plate is arranged perpendicular to the rotating shaft, so it rotates integrally with the rotating shaft. When the bimetal is heated by the flame of the stove burner, the position of the inner end is displaced around the rotating shaft based on the outer end fixed to the fixed part. As a result, the rotating shaft rotates, and the display plate rotates integrally with the rotating shaft. As a result, when the window provided in the top plate is viewed from above, the hidden mark moves to the bottom of the window and becomes visible.

[0011] moreover Since the bimetal is held within the retaining cylinder, the position of the bimetal can be fixed. Furthermore, it is possible to prevent the position from moving due to changes in shape caused by temperature rise. Furthermore, the rotating shaft is supported within the retaining cylinder so that it can rotate around its axis, and there is a fixing part that fixes the outer end of the bimetal, so the bimetal holding structure can be made compact. Furthermore, the shape of the bimetal can be stably changed within the retaining cylinder. [Brief explanation of the drawings]

[0012] [Figure 1] This is a plan view of stove 1 (right burner 4 is off). [Figure 2] This is a plan view of stove 1 (right burner 4 is ignited). [Figure 3] 1 is a schematic diagram of the right burner 4 and the ignition indicator device 30 as seen from above. [Figure 4] FIG. 10 is a schematic diagram of the ignition indicator 30 (when the right burner 4 is extinguished) as viewed from above. [Figure 5] FIG. 10 is a schematic diagram of the ignition indicator device 30 (right burner 4 is ignited) as seen from above. [Figure 6] FIG. 3 is a schematic diagram of an ignition indicator device 301 as seen from above. DETAILED DESCRIPTION OF THE INVENTION

[0013] An embodiment of the present invention will be described below. Unless otherwise specified, the device configurations described below are not intended to be limiting and are merely illustrative examples. The drawings are used to explain the technical features that can be adopted by the present invention. Also, Figures 3 to 5 are conceptual diagrams that schematically show the structure of the ignition indicator device 30 and the positional relationship with the right burner 4. For clarity of explanation, some parts differ from the actual dimensions and positional relationship.

[0014] The configuration of stove 1 will be described with reference to Figures 1 and 2. Stove 1 comprises a housing 2 and a top plate 3. Top plate 3 is fixed to the top of housing 2. A right stove burner 4 (hereinafter referred to as "right burner 4") and a left stove burner 5 (hereinafter referred to as "left burner 5") are provided on the right and left sides of top plate 3, penetrating vertically. A grill exhaust vent 6 is provided at the rear of top plate 3. Grill exhaust vent 6 exhausts air from the grill chamber (not shown) installed within housing 2. A grill door 7 is provided at approximately the center of the width of the front part of housing 2. Grill door 7 can be pulled out towards the front, opening and closing the front opening of the grill chamber.

[0015] On the front of the housing 2, in the area to the right of the grill door 7, there are provided ignition / extinction buttons 11 and 12. The right ignition / extinction button 11 is pressed to ignite / extinction the grill burner inside the grill chamber. The left ignition / extinction button 12 is pressed to ignite / extinction the right burner 4. Above the ignition / extinction buttons 11 and 12, there are provided flame power adjustment levers 11A and 12A, respectively. The flame power adjustment lever 11A is moved left and right to adjust the flame power of the grill burner. The flame power adjustment lever 12A is moved left and right to adjust the flame power of the right burner 4. In the area to the left of the grill door 7, there are provided an ignition / extinction button 13 and a battery box 15. The right ignition / extinction button 13 is pressed to ignite / extinction the left burner 5. The left battery box 15 can store two dry batteries and can be pulled out toward the front.

[0016] A cover plate 17 is provided on the top plate 3 in front of the right burner 4. A cover plate 18 is provided in front of the left burner 5. The cover plates 17, 18 are opaque in color so that light does not pass through below. The cover plate 17 is provided with a window group 21. The window group 21 has five approximately rectangular window portions 25 (see Figure 4). The window portions 25 are transparent in color so that light can be seen below, and may be made of, for example, glass, heat-resistant resin, or the like. The five window portions 25 are arranged at intervals on an arc centered near the front of the right burner 4. A window group 22 is also provided on the cover plate 18. The window group 22 also has five approximately rectangular window portions 25, and the five window portions 25 are arranged at intervals on an arc centered near the front of the left burner 5.

[0017] An ignition indicator 30 (see FIG. 3), which will be described later, is provided directly below each of the cover plates 17, 18. The ignition indicator 30 is equipped with a bimetal 33, which will be described later, and by utilizing the properties of the bimetal 33, an ignition indicator mark 50 is displayed in the five window sections 25. When the corresponding stove burner is extinguished, the five window sections 25 display white, indicating that the burner is extinguished (see FIG. 1). When the corresponding stove burner is ignited, the five window sections 25 display ignition indicator marks 50, indicating that the burner is ignited (see FIG. 1). This allows the user to easily recognize that the corresponding burner has ignited. Although the ignition indicator 30 is provided on the top plate 3, it may also be supported inside the housing 2.

[0018] The configuration of the ignition indicator device 30 will be described with reference to FIG. 3. The ignition indicator devices 30, 30 corresponding to the right burner 4 and the left burner 5, respectively, are identical to each other, and therefore, in this embodiment, the configuration of the ignition indicator device 30 corresponding to the right burner 4 will be described. The ignition indicator device 30 includes a retaining tube 31, a rotating shaft 32, a bimetal 33, and a display plate 34. The retaining tube 31 is made of metal. The retaining tube 31 is formed in a cylindrical shape centered on an imaginary axis P and extending in the vertical direction. The imaginary axis P is an axis perpendicular to the top plate 3. The retaining tube 31 is provided in front of and near the right burner 4. The retaining tube 31 is supported on the underside of the top plate 3; however, for example, a support member (not shown) may be attached to a reinforcing plate (not shown) provided on the underside of the top plate 3, and the retaining tube 31 may be supported by the support member.

[0019] A rectangular opening 36 is provided at the front of the retaining tube 31. The opening 36 has a generally rectangular shape that is long in the left-right direction when viewed from the front. A display plate 34 (described below) is inserted into the inside of the opening 36 from the inside of the retaining tube 31 toward the front. The left-right opening range of the opening 36 is larger than the rotation range of the display plate 34. The rotating shaft 32 is a metal cylinder that is coaxially housed inside the retaining tube 31 and is supported by a support member (not shown) on the underside of the top plate 3 so as to be rotatable about an imaginary axis P while protruding upward.

[0020] The bimetal 33 is a well-known bimetal formed into a spiral shape centered on an imaginary axis P. The spiral is counterclockwise in a plan view. A bimetal is a plate-shaped structure made by firmly bonding two or more metals or alloys with different thermal expansion coefficients together. It has the property of bending in response to temperature changes. As temperature increases, the metal with the larger thermal expansion coefficient expands, so the bimetal bends toward the metal with the smaller thermal expansion coefficient. The bimetal 33 of this embodiment is designed so that the spiral contracts as temperature increases, thereby changing shape to increase the number of turns. The bimetal 33 is housed inside the retaining tube 31. The inner end of the bimetal 33, located toward the center of the spiral, is fixed to a fixing portion 41 provided on the outer circumferential surface of the rotating shaft 32. The outer end of the bimetal 33, located opposite the inner end and outside the spiral, is fixed to a fixing portion 42 provided on the inner circumferential surface of the retaining tube 31. In other words, the bimetal 33 is connected between the rotating shaft 32 and the retaining tube 31.

[0021] The indicator plate 34 is a plate formed in a generally fan-like shape in a plan view, with its width increasing in the left-right direction from the rear to the front, and its front end being arc-shaped. The indicator plate 34 is made of a heat-resistant resin, but may also be made of metal. The rear portion of the indicator plate 34 is fixed perpendicular to the front portion of the rotating shaft 32. The indicator plate 34 extends forward from the front side of the rotating shaft 32 through the opening 36 of the retaining tube 31 and is disposed parallel to the underside of the top plate 3. Therefore, the upper surface of the indicator plate 34 faces the underside of the top plate 3. The indicator plate 34 rotates left-right around the rotating shaft 32 integrally with the rotating shaft 32. Five ignition indicator marks 50 are provided on the upper surface of the indicator plate 34. The ignition indicator marks 50 are generally rectangular and elongated in the radial direction of the indicator plate 34, and are generally the same shape as the five windows 25 provided in the cover plate 17 of the top plate 3. The five ignition indication marks 50 are arranged in the same arrangement as the five window portions 25 .

[0022] The color of the upper surface of the indicator plate 34 is not limited, but a color that evokes the extinguished state is preferable, such as white or black, or an inconspicuous color similar to the color of the upper surface of the top plate 3. The color of the ignition indicator mark 50 is also not limited, but a color that evokes the ignition state is preferable, such as a bright and noticeable color such as red or orange. The ignition indicator mark 50 may be a shape such as a rectangle, but may also be, for example, a symbol, sign, mark, design, pattern, etc. In this embodiment, for convenience of explanation, the upper surface of the indicator plate 34 is white and the five ignition indicator marks 50 are black in FIGS. 1 to 5.

[0023] 3 to 5, the operation of the ignition indicator device 30 will be described. Since the operations of the ignition indicator devices 30, 30 corresponding to the right burner 4 and the left burner 5 are the same, in this embodiment, the operation of the ignition indicator device 30 corresponding to the right burner 4 will be described.

[0024] As shown in Figures 3 and 4, when the right burner 4 is extinguished, the position of the indicator plate 34 is in the initial position. As shown in Figure 4, when the indicator plate 34 is in the initial position, the five ignition indicator marks 50 are positioned in a non-relative position. The non-relative position refers to a position that does not face the five window portions 25 of the cover plate 17, and in this embodiment, it is a position shifted to the left of directly below the five window portions 25. As a result, when the top plate 3 is viewed from above, the five ignition indicator marks 50 are hidden by the underside of the cover plate 17. In this state, the parts of the upper surface of the indicator plate 34 other than the five ignition indicator marks 50 face directly below the five window portions 25. Therefore, the five window portions 25 are white, allowing the user to intuitively and easily recognize that the right burner 4 is in the extinguished state.

[0025] To ignite the right burner 4, the user presses the ignition / extinction button 12. This supplies gas to the right burner 4, and simultaneously ignites the right burner 4 by discharge from an igniter electrode (not shown). As shown in FIG. 5, the flame F of the right burner 4 heats the bimetal 33 inside the retaining tube 31. As the temperature of the bimetal 33 rises, its shape changes, contracting and tightening like a spiral. Here, the outer end of the bimetal 33 is fixed to a fixing portion 42 provided on the inner circumferential surface of the retaining tube 31. Therefore, the bimetal 33 contracts inward from the position of its outer end fixed to the fixing portion 42 as a base point, and the inner end of the bimetal 33 closest to the center is displaced counterclockwise in a plan view. Accordingly, the rotating shaft 32 is also pulled by the inner end of the bimetal 33 and rotates counterclockwise.

[0026] Furthermore, since the indicator plate 34 rotates counterclockwise around the rotation shaft 32 integrally with the rotation shaft 32, the five ignition indicator marks 50 provided on the upper surface of the indicator plate 34 also move counterclockwise. At this time, the five ignition indicator marks 50 move from a non-relative position to a relative position. The relative position is a position where the five ignition indicator marks 50 face the five windows 25, which in this embodiment is a position directly below the five windows 25. As a result, when the top plate 3 is viewed from above, the five ignition indicator marks 50 appear exposed through the five windows 25 of the cover plate 17. This allows the user to intuitively and easily recognize that the right burner 4 is ignited.

[0027] Next, to extinguish the right burner 4, the user presses the ignition / extinction button 12 again. This cuts off the gas supply to the right burner 4, and the right burner 4 is extinguished. This causes the temperature of the bimetal 33 inside the retaining tube 31 to drop, so that the bimetal 33 expands outward from the position of its outer end fixed to the fixed part 42 as a base point, and returns to its original shape. As a result, the inner end of the bimetal 33 on the center side is displaced clockwise in a plan view. Accordingly, the rotating shaft 32 is also pulled by the inner end of the bimetal 33 and rotates clockwise.

[0028] Furthermore, since the indicator plate 34 rotates clockwise around the rotation shaft 32 integrally with the rotation shaft 32, the five ignition indicator marks 50 provided on the upper surface of the indicator plate 34 also displace clockwise. At this time, the five ignition indicator marks 50 return from the relative position to the non-relative position. As a result, when the top plate 3 is viewed from above, as shown in Figure 4, the white areas other than the five ignition indicator marks 50 are exposed through the five windows 25 of the cover plate 17, allowing the user to intuitively recognize that the right burner 4 has been extinguished.

[0029] As described above, the stove 1 of this embodiment includes a top plate 3. The right burner 4 penetrates the top plate 3. The top plate 3 includes five windows 25 and an ignition indicator 30. The windows 25 allow for visibility downward. The ignition indicator 30 includes a retaining tube 31, a rotating shaft 32, a bimetal 33, and an indicator plate 34. The retaining tube 31 is located adjacent to the right burner 4. The rotating shaft 32 is located within the retaining tube 31 and is supported rotatably and parallel to an imaginary axis P perpendicular to the top plate 3. The bimetal 33 has a spiral shape centered on the imaginary axis P. The bimetal 33 is housed and held within the retaining tube 31. The rotating shaft 32 penetrates the center of the bimetal 33. The inner end of the bimetal 33 on the center side is fixed to the rotating shaft 32. The outer end of the bimetal 33 is fixed to a fixing portion 42 located inside the retaining tube 31. The indicator plate 34 is provided perpendicular to and integral with the rotation axis 32, and is supported below the window portion 25 so as to be rotatable in a direction parallel to the top plate 3. The indicator plate 34 has five ignition indicator marks 50 on its upper surface facing the five window portions 25. When the bimetal 33 is heated by the flame F of the right burner 4, it is displaced around the rotation axis 32 based on its outer end portion fixed to the fixed portion 42. As a result, the stove 1 is configured to rotate the indicator plate 34, which is connected to the inner end portion of the bimetal 33 via the rotation axis 32.

[0030] In the above configuration, when the right burner 4 is not ignited and in an extinguished state, the five ignition indication marks 50 are positioned in a non-relative position that does not face the five window sections 25. When the bimetal 33 is heated by the flame F of the right burner 4 and the indicator plate 34 rotates, the five ignition indication marks 50 are moved from the non-relative position to a relative position that faces the lower sides of the five window sections 25. At this time, when the five window sections 25 provided in the top plate 3 are viewed from above, the ignition indication marks 50 that were previously hidden move to the lower sides of the five window sections 25 and become visible.

[0031] This allows the stove 1 to display five ignition indicator marks 50 indicating the ignition status on the top surface of the top plate 3 without using any electrical components. For example, if the stove 1 is battery-powered, battery consumption can be reduced. Furthermore, since there is no need to connect a harness, the number of assembly steps can be reduced compared to stoves that use many electrical components. In addition, the five windows 25 are provided on the cover plate 17 of the top plate 3, which is easily visible to the user, so it is easy to know that the right burner 4 is ignited.

[0032] While non-electrical methods, such as those using color ink, have been considered, they have the drawbacks of preventing color changes if heated too much and making it difficult to compensate for temperature differences. Furthermore, the color ink has the drawback of slow response due to its thermal capacity. In contrast, the ignition indicator 30 of this embodiment uses a bimetal 33, which allows it to directly or indirectly receive the heat of the flame from the right burner 4. This makes it easy to compensate for temperature differences and achieves fast response. Furthermore, the use of a bimetal 33 allows the ignition indicator mark 50 to move to the lower side of the window 25 through mechanical operation, making it visible. This prevents the ignition indicator mark 50 from moving out of the lower side of the window 25 even if it is overheated.

[0033] The present invention is not limited to the above embodiment, and various modifications are possible. The stove 1 in this embodiment is a tabletop stove, but it may also be a built-in stove. Also, a right burner 4 and a left burner 5 are provided on the top plate 3, but the number of burners on the stove may be more or less than this.

[0034] In the above embodiment, the retaining tube 31 is supported on the underside of the top plate 3, but it may also be supported on the upper side of the top plate 3. By doing so, the retaining tube is exposed, but the combustion heat of the stove burner can be efficiently transferred to the bimetal inside the retaining tube. As a result, the indicator plate can be more reliably rotated from the non-relative position to the relative position, and the user can be informed that the stove is in the ignition state. Note that when the retaining tube is supported on the upper side of the top plate 3, the top of the retaining tube may be closed with a lid or the like.

[0035] The bimetal 33 is spiral-shaped, but the shape is not limited thereto. For example, it may be linear, but preferably at least a portion is arc-shaped, and it may also be helical. The arc-shaped portion allows the bimetal 33 to be positioned and displaced in a narrower area than a linear one. If the bimetal 33 were linear, one end of the length would be fixed, and the other end would be displaced by heating from the stove burner. By directly or indirectly connecting a display panel to the other end, the display panel could be configured to move in accordance with the displacement of the other end.

[0036] Depending on the shape of the bimetal 33, the rotating shaft 32 may be omitted. In the above embodiment, since the bimetal 33 is spiral-shaped, the outer end displaces in an arc shape as the temperature rises. By utilizing this property to rotate the rotating shaft 32 and converting the rotational force into a rotational force for the display plate 34, the ignition indicator device 30 can be made compact.

[0037] In this embodiment, the bimetal 33 is housed and held within the holding tube 31, but instead of the holding tube 31, the bimetal 33 may be exposed and held by a holding member in a position close to the right burner 4.

[0038] The number of windows 25 provided in the cover plates 17, 18 is not limited to five, and may be one or more than five. The shape of the window 25 is not limited to a rectangular shape, and may be other shapes such as a circle or a triangle. The number and shape of the ignition indication mark 50 are also not limited, but should preferably match the number and shape of the windows 25.

[0039] When the right burner 4 is ignited, the display plate 34 rotates counterclockwise in plan view around the rotation axis 32, but by reversing the spiral direction of the bimetal 33, the display plate 34 may be rotated clockwise in plan view.

[0040] In the above embodiment, the window groups 21, 22 are provided in the cover plates 17, 18 provided on the upper surface of the top plate 3, but the window groups 21, 22 may be provided directly in the top plate 3 without providing the cover plates 17, 18.

[0041] As shown in FIG. 3, the ignition indicator device 30 has an indicator plate 34 fixed to approximately the center in the height direction of a rotating shaft 32 journaled within a retaining tube 31, and the indicator plate 34 extends forward through an opening 36 provided on the front side of the retaining tube 31. However, the rotating shaft 32 may protrude upward or downward from within the retaining tube 31, and the indicator plate 34 may be fixed so as to be perpendicular to the protruding portion. For example, the ignition indicator device 301 shown in FIG. 6 has a rotating shaft 321 rotatably mounted within the retaining tube 31. The rotating shaft 321 protrudes upward from the top of the retaining tube 31. The rear portion of the indicator plate 34 is fixed perpendicular to the upwardly protruding portion of the rotating shaft 321. An ignition indicator device 301 having such a structure can also achieve the same effects as those of this embodiment. [Explanation of symbols]

[0042] 1 stove 3. Top plate 4 Right burner 5 Left burner 25 Window 31 Holding cylinder 32 Rotation axis 33 Bimetal 34 Display board 41 Fixed part 42 Fixed part 50 Ignition indicator mark F flame P Virtual axis

Claims

[Claim 1] In a gas stove equipped with a top plate through which a stove burner is installed, The top plate is A plurality of windows located in front of the stove burner and allowing downward visibility; an indicator plate supported below the plurality of window portions so as to be movable in a direction parallel to the top plate, the indicator plate having a plurality of marks indicating an ignition state on an upper surface facing the window portions; a bimetal formed in a spiral or helical shape; A holding cylinder that is provided adjacent to the stove burner, extends in the vertical direction, and houses and holds the bimetal; a fixing portion provided inside the retaining cylinder and configured to fix the position of an outer end portion of the bimetal held by the retaining cylinder; a rotating shaft that is supported within the retaining cylinder so as to be rotatable about its axis, that passes through the center of the bimetal, and that is supported so as to be rotatable about its axis; Equipped with The plurality of window portions are arranged at intervals on an arc centered near the front side of the stove burner, and the window portions are rectangular in shape and long in the radial direction of the arc. the display plate is a plate that is provided integrally with the rotation shaft and that is formed in a generally fan-like shape in a plan view, the width of which increases in the left-right direction as it moves forward from the rotation shaft, the rotation axis is located at the center of the arc along which the plurality of window portions are arranged, The inner end of the bimetal on the center side is fixed to the rotary shaft, When the bimetal is heated by the flame of the stove burner, it is displaced around the rotation axis based on the outer end fixed to the fixing part, thereby rotating the display plate fixed to the inner end via the rotation axis, the plurality of marks are the same in number as the plurality of window portions, have rectangular shapes elongated in the radial direction of the display plate, and have the same shape as the plurality of window portions, and are arranged side by side in the same arrangement as the arrangement of the plurality of window portions; When the stove burner is not ignited, each of the plurality of marks is disposed at a position shifted in the circumferential direction from directly below the plurality of window portions and at a non-relative position not facing each of the plurality of window portions, and when the bimetal is heated by the flame of the stove burner and the display plate rotates around the rotation axis, the marks are disposed at a relative position facing the lower side of each of the plurality of window portions from the non-relative position. A gas stove featuring:

Images