JP3751355B2 - Flame leak prevention stove - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flame leakage prevention type stove comprising a cylindrical virtues surrounding a burner flame and exhaust means for forcibly sucking and exhausting hot air generated by the flame.
[0002]
[Prior art]
Ordinary stoves use virtues with claws. In such a stove, the flame from the burner and the hot air generated by the flame are released to the outside of the virtues along the bottom of the pan placed on the claws of the virtues, and a part of the hot air reaches the handle of the pan. This causes problems such as heating the handle and making it difficult to hold the handle.
[0003]
In order to eliminate such problems, the virtues are formed in a cylindrical shape to surround the burner flame, and an exhaust means for forcibly sucking and exhausting hot air generated by the flames is provided so that hot air does not leak outside the virtues. A flame leak prevention type stove is considered.
[0004]
[Problems to be solved by the invention]
In the flame leakage prevention type stove as described above, the upper end surface of the virtues is formed into a flat surface so that the bottom of the pan is in surface contact with the upper end surface of the virtues over the entire circumference. In the upper end surface of the five virtues, the virtue and the bottom of the pot are stuck in a surface contact state due to sticking of the boiled sap so that it becomes difficult to pick up the pan.
This invention makes it a subject to provide the flame leak prevention type stove which eliminated this malfunction.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a flame leakage prevention type stove comprising a cylindrical virtues surrounding a burner flame and exhaust means for forcibly sucking and exhausting hot air generated by the flames. Further, a protrusion extending in the circumferential direction capable of line contact is provided on the bottom surface of the pan, and a notch is formed in the middle of the protrusion.
[0006]
According to this, even if boiled juice is stuck on the upper end surface of Gotoku, since the Gotoku and the pan bottom are only fixed in a line contact state on the ridge, the fixing force is weak, and the pan can be easily taken up. .
[0007]
In this case, if a notch is formed in the middle of the ridge, the virtues and the pan bottom do not adhere to the notch, so when picking up the pan, the ridge and the pan bottom The fixing part between them comes to be peeled off, and the pan can be taken up more easily.
[0008]
When the notch is formed, the outside air is sucked into the virtues through the notch by the suction force of the exhaust means. In this case, if a protrusion is provided on the radially inner side of the protrusion to obstruct the flow of the outside air sucked into the virtues through the notch, the heating efficiency is suppressed by suppressing the inflow of the outside air into the virtues. This is advantageous because it is possible to prevent a decrease in the temperature.
[0009]
Moreover, it may replace with the above protrusions and may provide many protrusions which make point contact with the bottom face of a pot in zigzag form on the upper end surface of Gotoku. Even in this case, the pan is easily taken up and the inflow of outside air is suppressed by the staggered arrangement of the protrusions.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 1, reference numeral 1 denotes a stove body, and a virtue 3 is placed on an upper surface of a peripheral portion of an opening 2 a provided on a top plate 2 on the upper surface of the stove body 1, and a combustion housing 4 extends below the opening 2 a. And a burner 5 was housed in the combustion housing 4.
[0011]
The burner 5 is composed of an internal-fired ring burner having a flame hole 5a on the inner periphery, and is attached to the upper end of a bottomed cylindrical support frame 41 that is inserted into the combustion housing 4 with a surrounding gap 40 therebetween. Burner 5 was fitted. At the upper end of the combustion housing 4, an overhanging portion 42 is provided that projects to the inner side of the flame hole 5 a of the burner 5, and the gap is formed between the upper surface of the burner 5 and the lower surface of the overhanging portion 42. A secondary air passage 40a that is continuous with the passage 40a is formed, and secondary air for combustion can be introduced into the combustion housing 4 from the passage 40a and the secondary air hole 41a opened in the bottom plate portion of the support frame 41. .
[0012]
Further, the heat shield cylinder 43 is inserted into the opening 41b formed at the center of the bottom plate portion of the support frame 41, and a heat sensitive head 44 that is urged upward by a spring (not shown) is provided in the heat shield cylinder 43. When the pan P was placed on the pan, the thermal head 44 was pressed against the pan bottom, and when the pan bottom was overheated, this was detected by the thermal head 44 and the burner 5 was extinguished. In the figure, 5b is a spark plug for the burner 5.
[0013]
The five virtues 3 are formed in a cylindrical shape with an inner and outer double wall structure surrounding the flame F of the burner 5, and the lower end of the inner wall of the virtues 3 is seated on the upper surface of the overhanging portion 42 of the combustion housing 4. A juice receiving portion 30 is integrally formed at the lower end of the outer wall portion, and the outer peripheral edge of the juice receiving portion 30 is seated on the top plate 2. Further, the peripheral wall portion and the overhanging portion 42 of the combustion housing 4 have a double wall structure, and the exhaust space communicates through the exhaust fan 7 with the space between the double walls to the exhaust port 6 a opened in the back of the top plate 2. A passage 6 is formed. Then, an exhaust window 31 was opened on the inner peripheral wall of Gotoku 3, and a communication hole 42a was made on the upper wall of the overhanging portion 42 to connect the hollow space of Gotoku 3 and the exhaust passage 6 and was generated by the flame F. The hot air is forcibly sucked and exhausted to the exhaust port 6 a through the exhaust window 31, the hollow space of Gotoku 3, the communication hole 42 a and the exhaust passage 6 by the operation of the exhaust fan 7.
[0014]
On the upper end surface of the virtues 3, a protrusion 32 is provided that extends in the circumferential direction so as to be in line contact with the bottom surface of the pan P. In the present embodiment, the outer peripheral wall of Gotoku 3 is tapered, and the ridge 32 is constituted by an acute bent portion between the inner peripheral wall and the outer peripheral wall. Further, as shown in FIG. A notch 33 is formed in the middle of the ridge 32 by crushing at a location.
[0015]
According to this configuration, even if boiling occurs, the boiling juice flows along the outer peripheral wall of Gotoku 3 to the juice receiving unit 30, and it is difficult for sticking of the boiling juice at the upper end of Gotoku 3. Moreover, even if boiled squeezed juice sticks at the upper end of Gotoku 3, since the Gotoku 3 and the bottom surface of the pan P are only fixed in a line contact state on the ridge 32, the fixing force is weakened. Further, the fixing over the entire circumference of the virtues 3 and the pan bottom is prevented by the notch 33, and thus, when picking up the pan P, the fixing portion between the protrusion 32 and the pan bottom starting from the notch 33. Will be peeled off, and the pan P can be easily taken up from the Gotoku 3.
[0016]
If the cutout portion 33 is provided, outside air may flow into the inside of the virtues 3 through the cutout portion 33 due to the suction force of the exhaust fan 7, and the heating efficiency may be reduced. It is necessary to limit the number. On the other hand, in order to make it easy to pick up the pan P, it is desirable to increase the size and number of the notch portions 33.
[0017]
In this case, as shown in FIG. 3, concentric, for example, triple ridges 32 ₁ , 32 ₂ , and 32 ₃ are formed on the upper end surface of the virtues 3, and the notch 33 of the outermost ridge 32 ₁ is provided. _If the intermediate protrusion 32 ₂ faces ₁ and the innermost protrusion 32 ₃ faces the notch 33 ₂ of the intermediate protrusion 32 ₂ , these protrusions 32 ₁ , 32 ₂ , in 32 ₃ in a state of pan bottom are in contact, ambient air flow path is sucked from the notch 33 _first protrusion 32 ₁ the outermost becomes maze, outside air flow is disturbed. Thus, even if the size and number of the notches 33 ₁ of the outermost protrusion 32 ₁ , where sticking of the boiled juice is a problem, the inflow of outside air can be suppressed and a decrease in heating efficiency can be prevented. In the case shown in FIG. 3, notches 33 ₂ and 33 ₃ are also formed in the intermediate protrusion 32 ₂ and the innermost protrusion 32 ₃ , respectively. When the pan bottom does not come into contact with the outermost ridge 32 ₁ or the middle ridge 32 ₂ , the entire circumference of the pan bottom is fixed by sticking of simmered juice at the middle ridge 32 ₂ or the innermost ridge 32 _3. This is to prevent it. If there is no possibility that the outermost protrusion 32 ₁ or the intermediate protrusion 32 ₂ will come off from the bottom of the pan, the intermediate protrusion 32 ₂ or the innermost protrusion 32 ₃ is not provided with a notch. It is also possible to form a continuous ridge over the entire area and completely block the inflow of outside air.
In the example shown in FIG. 3, the ridges are formed concentrically in a multiple manner. However, the ridges may be formed in a multiple spiral shape.
[0018]
Moreover, as shown in FIG. 4, even if many protrusions 34 that can make point contact with the pot bottom are formed on the upper end surface of the Gotoku 3, it is possible to weaken the adhesion force between the Gotoku 3 and the pot bottom due to the sticking of boiled juice. In this case, the protrusions 34 are arranged in a staggered manner to suppress the inflow of outside air.
[0019]
Also, as in the embodiment of FIG. 2, if the juice receiving part 30 is integrally formed with the virtues 3, the juice receiving tray becomes unnecessary, the number of parts can be reduced, and cleaning is facilitated, which is advantageous.
[Brief description of the drawings]
1 is a cutaway side view of an example of a stove according to the present invention. FIG. 2 is a perspective view of five virtues provided on the stove of FIG. 1. FIG. 3 is a perspective view of another example of virtues. Perspective view showing another example [Explanation of symbols]
3 trivet 32,32 _1, 32 _2, 32 ₃ projections 33 _1, 33 _2, 33 ₃ notch 5 burner 7 exhaust fan (exhaust means)

Claims (3)

In a flame leakage prevention type stove equipped with a cylindrical virtue that surrounds the flame of the burner and an exhaust means for forcibly sucking and exhausting hot air generated by the flame, the circumference that can make line contact with the top surface of the virtue and the bottom of the pan A flame leakage prevention type stove characterized by providing a protrusion extending in a direction and forming a notch in the middle of the protrusion. 2. The flame leakage prevention type stove according to claim 1 , wherein a protrusion that obstructs a flow of outside air sucked into the five virtues through the notch portion is provided on a radially inner side of the protrusion. 3.   In a flame leakage prevention type stove comprising a cylindrical virtues surrounding the flame of a burner and exhaust means for forcibly sucking and exhausting hot air generated by the flames, a protrusion that makes point contact with the bottom of the pan is formed on the upper end surface of the virtues A flame leakage prevention type stove characterized by being provided in a staggered manner.

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