JP4520592B2 - Gas stove - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a gas stove using a glass top plate.
[0002]
[Prior art and problems to be solved by the invention]
In recent years, in order to improve the aesthetics and the like in a built-in type gas stove, a glass top plate has been used. The top plate is overheated by burning of the burner (particularly, the peripheral portion of the burner is overheated to a high temperature), but when cold water is applied to the overheated glass, it is broken by thermal shock. This is because glass has a temperature difference and cannot withstand the bending stress (thermal shock breakdown).
[0003]
By the way, when glass is used as the top plate, the virtues are placed on the top plate so that cooking utensils such as pans can be supported. There is a problem that the utensils such as pots fall and turn over.
[0004]
When glass is used as the top plate, it is conceivable to use ceramic glass having a coefficient of expansion of 0 as the glass so that the top plate does not break. In this case, the cost increases and the mechanical strength of the top plate increases. There is a problem of weakening.
[0005]
Further it is also made possible to suppress the amount of heat of the burner so as not to exceed the thermal shock limit temperature T _A of the glass, but restricted to the cooking can not be fired is large.
[0006]
The present invention has been made in view of the description, and it is an object of the present invention to provide a gas stove that can prevent a cooking utensil such as a pan on the virtues from tipping over even if the top plate breaks. It is an object of the present invention to provide a gas stove that can prevent the top plate from cracking without using the glass of the glass and suppressing the amount of heat of the burner.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the gas stove according to claim 1 of the present invention is such that the glass top plate 1 is attached to the upper surface of the gas stove main body A and the burner 3 of the gas stove main body A is installed in the window hole 2 provided in the top plate 1. An annular burner ring 7 is inserted between the outer periphery of the burner 3 and the edge of the window hole 2 so as to close between them, and the five virtues 4 are connected to the plural virtue claws 5 and the annular ring that supports the five virtue claws 5 The virtue plate 6 is placed on the top plate 1 at the periphery of the window hole 2 and the inner peripheral side of the virtue plate 6 is overlaid on the outer peripheral side of the burner ring 7. Is provided on the outer periphery of the burner 3 so as to extend over the entire periphery , the virtues 4 are made of metal, and the edge of the window hole 2 is separated from the edge by a predetermined distance to the outer periphery. and the trivet plate 6 so as to cover the until position to characterized in that it is placed on the top plate 1 . If the glass top plate 1 is broken, the inner periphery of the burner ring 7 is locked to the step 8 of the burner 3 so that the burner ring 7 is supported by the burner 3. Cooking pots such as a pan 9 that is supported by the burner 3 and placed on the virtues 4 so that the inner circumference of the virtuos plate 6 is supported and the virtues 4 are not dropped downward. There is no risk of falling. By covering the edge of the window hole 2 of the top plate 1 and the distance from the edge to a position a predetermined distance away from the edge with the metal virtuosity plate 6, water is applied to the periphery of the burner 3 even if water is applied. It will not be applied directly to the glass top plate 1 over the virtuosity plate 6, and even if water on the virtuosity plate 6 goes to the glass top plate 1 under the virtuosity plate 6, Heated water will turn around, so that the glass top plate 1 will not be subjected to a large thermal shock, and the glass top plate 1 can be prevented from breaking. Thereby, even if it uses low-cost glass, it can prevent that the top plate 1 is cracked, and it can prevent that it is cracked even if it does not reduce the calorie | heat amount of the burner 3.
[0008]
The gas stove according to claim 2 of the present invention is the gas stove according to claim 1, wherein the flange portion 17 projecting from the outer periphery of the upper portion of the burner ring 7 is placed along the upper surface of the edge of the window hole 2 of the top plate 1. An annular wire spring 19 is attached to the wire spring 19 and a bent portion 23 that protrudes on the outer periphery of the wire spring 19 is brought into contact with the lower surface of the edge of the window hole 2 so that the flange 17 and the bent portion 23 of the wire spring 19 It is characterized by elastically holding the edge of the window hole 2 of the plate 1. In this way, the burner ring 7 can be easily attached to the top plate 1 and, of course, when an impact load is applied to the top plate 1, the wire springs 19 reduce the impact, and the glass top plate Even 1 can be hard to break by impact load.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the gas stove main body A is built in and attached to the counter 10 of the kitchen. The flange 11a at the upper end of the casing side plate 11 of the gas stove main body A is placed on the upper surface of the periphery of the opening 12 of the counter 10, and the flange 13a at the periphery of the burner base 13 provided in the gas stove main body A is connected to the flange 11a. Are formed on the upper surface of the peripheral edge of the opening 12 of the counter 10 so as to overlap each other. One or more burners 3 are mounted on the burner base 13 at predetermined positions. In the burner 3, a burner cap 15 is detachably mounted on a burner body 14. Above the burner cap 15, a saucer 16 for receiving boiled juice is mounted.
[0011]
The top plate 1 to be attached to the upper surface side of the gas stove main body A is made of glass, and a window hole 2 is perforated at a location corresponding to the burner 3 of the top plate 1. The back surface of the glass top plate 1 is subjected to back surface coating as necessary. The window hole 2 is larger than the outer diameter of the burner 3, and the burner 3 is inserted into the window hole 2 with the top plate 1 attached to the upper surface side of the gas stove main body A. Protrudes upward. A burner ring 7 that closes the space between the window hole 2 and the burner 3 of the top plate 1 is formed in an annular shape, and this burner ring 7 is disposed between the edge of the window hole 2 and the outer periphery of the burner 3 to open the window hole. 2 is attached to the edge.
[0012]
The upper part of the outer periphery of the burner ring 7 is provided with a flange part 17 projecting in the outer peripheral direction, and a lower surface of the flange part 17 is provided with a sealing material 18 such as an oil compound (in the case of an oil compound, it is applied). The sealing material 18 is placed on the upper surface of the edge of the window hole 2 of the top plate 1. By making the diameter of the window hole 2 larger than the outer diameter of the portion of the burner ring 7 that passes through the window hole 2, a gap S is provided between them. In this gap S, the burner ring 7 is equivalent to the gap S. It is movable in the horizontal direction. When the burner ring 7 is attached to the edge of the window hole 2 of the top plate 1, the wire spring 19 is attached to the spring attachment groove 20 provided around the entire lower periphery of the burner ring 7 as shown in FIG. ing. The wire spring 19 is assembled in an annular shape by locking a locked portion 22 provided at the other end to a locking portion 21 provided at one end of both ends of the wire spring 19. The wire spring 19 is formed in a regular polygonal shape such as a regular hexagon when viewed from the plane, and has a corner portion that protrudes in the outer peripheral direction and a protruding portion 23 that protrudes upward. When the wire spring 19 is mounted, the wire spring 19 is disposed so as to surround the outer periphery of the burner ring 7 with the locking portion 21 and the locked portion 22 being unlocked. The portion between the two portions 23 is fitted into the spring mounting groove 20 to lock the locking portion 21 and the locked portion 22, and the protruding portion 23 is brought into contact with the lower surface of the edge portion of the window hole 2 of the top plate 1. By attaching the wire spring 19 in this manner, the edge of the window hole 2 is elastically held between the flange portion 17 of the burner ring 7 and the wire spring 19.
[0013]
A guide piece 24 protrudes downward from the lower part of the burner ring 7 over the entire circumference, and an inclined surface 24 a having a diameter increasing downward is provided on the inner surface of the guide piece 24. The outer peripheral surface 3a of a substantially vertical surface is provided on the outer periphery of the burner 3 at the portion where the burner ring 7 is interposed, and the inner peripheral surface 7a of the substantially vertical surface is provided on the inner periphery of the burner ring 7, and the outer periphery of the substantially vertical surface The surface 3a and the substantially vertical inner peripheral surface 7a are made to correspond in parallel. A seal ring 25 such as an O-ring is interposed between the outer peripheral surface 3a and the inner peripheral surface 7a, and the seal ring 25 seals between them. On the upper part of the inner periphery of the burner ring 7, a protruding edge 26 protruding in the inner peripheral direction is provided over the entire periphery, and the protruding edge 26 is brought close to the outer peripheral surface 3a. Further, a step portion 8 is provided at the lower end of the outer peripheral surface 3 a of the burner 3 so as to extend over the entire periphery, and a seal ring 25 is placed on the step portion 8. Usually, there is a gap between the step 8 and the lower end of the inner peripheral surface 7a. Further, the step portion 8 is adapted to receive the burner ring 7 by the outer periphery of the burner ring 7 being locked when the burner ring 7 is lowered.
[0014]
The metal virtues 4 are formed by a plurality of virtues claws 5 and an annular plate-like virtuosity plate 6 that supports the virtues claws 5. Is set on the outer periphery of the upper portion of the burner 3. The Gotoku plate 6 is an annular flat plate having a predetermined width over the entire circumference, and covers the upper surface of the top plate 1 in a range from the edge of the window hole 2 to the outer peripheral position separated from the edge by a predetermined distance. It is. Further, an overlapping portion 28 is provided on the inner peripheral side of the virtually plate 6 so as to extend over the entire periphery, and the overlapping portion 28 is overlapped on the flange portion 17 of the burner ring 7. Further, a semicircular positioning concave portion 33 is provided at an appropriate position on the inner periphery of the virtually plate 6, and a semicircular positioning convex portion 34 is provided on the burner ring 7. The positioning concave portion 33 and the positioning convex portion 34 are fitted to each other in the state of being mounted on the rim, so that the circumferential positioning of the virtues 4 is performed. A sash frame 29 is arranged on the outer periphery of the top plate 1 along the outer periphery, and the sash frame 29 is attached to the top plate 1 with a pressing spring 30, and the sash frame 29 is placed on the upper surface of the counter 10. is there. A packing 35 is attached to the lower surface of the sash frame 29, and the packing 35 is brought into elastic contact with the upper surface of the counter 10.
[0015]
Although the gas stove is configured as described above, the construction to be set on the counter 10 is performed as follows. The gas stove main body A is built in and attached from the opening 12 of the counter 10 with the top plate 1 removed. At this time, the seal ring 25 is mounted on the outer peripheral surface 3a of the burner 3 in advance. In this state, the top plate 1 with the burner ring 7 attached to the window hole 2 is disposed above the gas stove main body A as shown in FIG. 7, and from this state, the top plate 1 is attached to the upper surface side of the gas stove main body A. The burner ring 7 is inserted into the burner 3, and the sash frame 29 is placed on the upper surface of the counter 10. When the burner ring 7 is inserted into the burner 3, a seal ring 25 is interposed between the inner peripheral surface 7 a of the burner ring 7 and the outer peripheral surface 3 a of the burner 3. After the top plate 1 is thus attached, the virtues 4 are set on the top plate 1. When performing maintenance such as cleaning of the top plate 1, after removing the virtues 4, the top plate 1 is removed so as to be pulled out and set again in the same manner as described above.
[0016]
Although the top plate 1 is attached as described above, since the seal ring 25 is interposed between the inner peripheral surface 7a of the burner ring 7 and the outer peripheral surface 3a of the burner 3, sealing is performed. Even if there is a variation in accuracy, the seal ring 25 can reliably seal between the burner ring 7 and the burner 3. Further, even if the accuracy of the installation position of the burner 3 varies in the horizontal direction, the burner ring 7 can be absorbed by moving in the horizontal direction by the gap S.
[0017]
When using the gas stove configured as described above, a cooking utensil such as a pan 9 is placed on the five virtue claws 5 of the five virtues 4 as shown in FIG. Cooking utensils are heated. Thus, when burning with the burner 3, the top plate 1 is also heated and the temperature of the top plate 1 rises. At this time, the top plate 1 is heated to a high temperature at a portion close to the burner 3, but the portion away from the burner 3 is not so heated. That, T ₁ the temperature of the top plate 1 of the portion near the burner 3, when the temperature of the top plate 1 of a portion apart from the burner 3 was T _2, and has a relation of T ₁ >> T _2. Thus, at the position away from the burner 3, the top plate 1 is not overheated so much that even if the top plate 1 is splashed with water, there is no possibility that the top plate 1 will break due to thermal shock applied to the top plate 1. In addition, the top plate 1 is heated to a high temperature in a portion close to the burner 3, but this portion is covered with a metal virtuosity plate 6 of the virtues 4, so even if water is applied, it hangs on the virtuosity plate 6 and the heavens. Water is not directly applied to the plate 1, and the top plate 1 is not cracked due to thermal shock. Even if the water on the virtuosity plate 6 goes to the lower surface of the virtuosity plate 6, the water on the virtuosity plate 6 is heated by the hot virtues 4 and the temperature of the water becomes high (about 100 ° C.). After being heated, the top plate 1 does not break due to thermal shock applied to the top plate 1 because it travels to the lower surface side of the virtually plate 6 and comes into contact with the top plate 1. Furthermore, since the water applied to the Gotoku plate 6 reaches 100 ° C. and reaches the top plate 1 as described above, the thermal shock limit temperature of the glass of the top plate 1 is T _A , but T ₁ = The temperature of the top plate 1 may be increased to T _A + 100 ° C.
[0018]
As described above, a cooking utensil such as the pan 9 is placed on the virtues 4 and is cooked. However, if the glass top plate 1 is broken at this time, the burner ring 7 as shown in FIG. The inner periphery is locked to the step portion 8 of the burner 3, the burner ring 7 is supported by the burner 3, and the overlapping portion 28 of the five virtues 4 is placed on the flange portion 17 on the outer periphery of the burner ring 7. Is supported by the burner 3 via the burner ring 7. Thereby, even if a cooking utensil such as the pan 9 is placed on the virtues 4, there is no fear of falling down.
[0019]
【The invention's effect】
According to the first aspect of the present invention, a glass top plate is attached to the upper surface of the gas stove main body, and the burner of the gas stove main body is inserted into a window hole provided in the top plate. An annular burner ring is placed between them, and the five virtues are formed by a plurality of five virtue claws and an annular five virtue plate that supports the five virtue claws. Since the plate is placed and the inner periphery of the Gotoku plate is overlaid on the outer periphery of the burner ring, the step that can be locked by the inner periphery of the burner ring is provided around the entire periphery of the burner. In the unlikely event that the glass top plate breaks, the inner periphery of the burner ring is locked to the step of the burner and the burner ring is supported by the burner. It will be supported, and the virtues will not fall down Trivet so that those there is no risk of falling cookware pan or the like placed on the trivet is supported by the burner. Furthermore, because the virtues were made of metal and the virtuosity plate was placed on the top plate so as to cover the edge of the window hole and the distance from the edge to the outer periphery at a predetermined distance, Between the edge of the hole and the position from the edge to a position separated by a predetermined distance on the outer periphery, it will be covered with a metal virtuosity plate. In addition, even if the water on the Gotoku plate travels to the glass top plate under the Gotoku plate, the water heated to the high temperature on the Gotoku plate will turn, and the glass top plate The glass top plate can be prevented from cracking without being subjected to a large thermal shock. Therefore, the top plate can be prevented from cracking even when low-cost tempered glass is used, and the heat amount of the burner is reduced. It can prevent the top plate from breaking even without it. .
[0020]
Further, the invention of claim 2 of the present invention is that, in claim 1, the flange protruding from the outer periphery of the upper part of the burner ring is along the upper surface of the window hole edge of the top plate, and the annular wire spring is provided on the lower outer periphery of the burner ring. Is attached to the lower surface of the edge of the window hole, and the window hole edge of the top plate is elastically held between the flange and the bent part of the wire spring. As a result, the burner ring can be easily attached to the top plate. Of course, when an impact load is applied to the top plate, the wire spring will relieve the impact. It can be done.
[Brief description of the drawings]
FIG. 1 is a partially omitted cross-sectional view of an example of an embodiment of the present invention.
FIG. 2 is a cross-sectional view enlarging the main part of the same.
FIG. 3 is a plan view showing the gas stove body of the above.
FIG. 4 is a perspective view of a portion where the above five virtues are placed.
FIGS. 5A and 5B show the above five virtues, in which FIG. 5A is a plan view and FIG. 5B is a cross-sectional view as viewed from the front;
FIG. 6 is a bottom view showing a state where a wire spring is attached to the above-described burner ring.
FIG. 7 is an exploded sectional view of a main part for explaining a state in which the top plate is set.
FIG. 8 is a cross-sectional view for explaining the operation when the top plate is broken.
[Explanation of symbols]
A Gas stove body 1 Top plate 2 Window hole 3 Burner 4 Gotoku 5 Gotoku claw 6 Gotoku plate 7 Burner ring 8 Step

Claims (2)

A glass top plate is attached to the upper surface of the gas stove body, and the burner of the gas stove body is inserted into a window hole provided in the top plate, and the ring is closed between the outer periphery of the burner and the window hole edge. The five virtues are formed by a plurality of five virtue claws and an annular five virtue plate supporting the five virtue claws, and the five virtue plates are placed on the top plate at the periphery of the window hole and A gas stove with a stepped portion that can be engaged with the inner periphery of the burner ring so that the inner periphery of the burner ring can be engaged with the outer periphery of the burner over the entire circumference. A gas stove characterized in that a Gotoku plate is placed on the top plate so as to cover the space between the edge of the window hole and a position away from this edge by a predetermined distance on the outer periphery . A flange projecting on the outer periphery of the upper part of the burner ring is placed along the upper surface of the window hole edge of the top plate, and an annular wire spring is mounted on the outer periphery of the lower part of the burner ring and a bent part that projects on the outer periphery of the wire spring is provided. in contact with the lower surface of the Madoanaen, Gascon b according to claim 1, characterized by comprising a window hole edge of the top plate in a projectingly bent portion of the flange portion and the wire spring resiliently clamped.

Images