JP3172822B2 - Cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ring-shaped virtue which surrounds a flame from a burner and can contact the bottom of a pan, and forcibly sucks hot air generated by the flame and discharges it to the outside through an exhaust passage. And a heating cooker provided with an exhaust means.

[0002]

2. Description of the Related Art In a virtue in which a plurality of claw-shaped protrusions are erected,
A gap is formed between the pot bottom and the top plate, and the flame from the burner and the hot air after the burning of the flame is completed leaks out of the box through the gap. Then, the handle of the pot is heated by the leaked flame or hot air, so that there is a problem that the handle is difficult to hold when the pot is taken down from Gotoku. Therefore, a ring-shaped virtue that can be in contact with the pan bottom over the entire circumference is provided on the top plate,
It is conceivable that hot air is forcibly sucked in and exhausted through an exhaust passage, so that flames and hot air do not leak to the outside of Gotoku so that the handle of the pot is not heated.

[0003]

However, when the pot is placed, the inside of the gotoku is closed by the pot, so that the flame cannot be seen from the outside, and the ignition and the heat power adjustment operation can be performed while watching the flame. Can not.

[0004] In view of the above problems, an object of the present invention is to provide a cooking device capable of visually checking a flame from the outside with a minimum necessary gap.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention forcibly removes a ring-shaped virtue which can abut the bottom of a pan and surrounds a flame from a burner and hot air generated by the flame. In a heating cooker provided with an exhaust means for sucking and discharging to the outside through an exhaust passage, the upper surface of the gorge contacting the bottom surface of the pan is dented, and the internal flame is fired while the pan is placed. It is characterized by providing a groove that can be viewed.

By the way, the bottom of the groove may be inclined so as to descend toward the center of Gotoku, and the groove may be provided facing the front of the cooking device.

[0007] If a groove is provided in one part of the pit, the other part still contacts the bottom of the pot, so that the area of the gap is only the passage area of the groove. It should be noted that the confirmation of the flame can be sufficiently performed by visual inspection through a groove provided in one place.

By the way, the depth of the groove is narrowed at even one of the bottoms of the groove, so that it is possible to prevent leakage of hot air from the inside and suction of outside air from the outside. Therefore, the outer end of the groove was made shallow by inclining the bottom of the groove toward the center of Gotoku.

In order to visually observe the flame through the groove, the groove may slightly swing right and left with respect to the front surface of the cooking device, but it is more convenient to face the front surface.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a stove main body, and an annular upper surface of an opening 11 formed in an inner top plate 10a attached to and detached from a top plate 10b on the upper surface of the main body 1. The virtues 2 were removably mounted, and a cylindrical combustion case 3 was suspended from the lower surface of the periphery of the opening 11, and the burner 4 was housed in the combustion case 3.

[0011] As shown in FIG. 2, the above-mentioned gotoku 2 is formed in an annular shape, and is press-molded so that the inside is hollow.
When the pot P is placed on the gotoku 2, the upper surface 21 contacts the pot bottom PB. A groove 22 was formed at one place on the upper surface 21. The groove 22
Is inclined in a direction in which the bottom surface 22a is lowered toward the center of the virtues 2. A plurality of window holes 24 are formed in the inner peripheral surface 23 at substantially equal intervals in the circumferential direction. By the way, the groove 2
An example of the specific shape of 2 is that the width in the diameter direction of Gotoku is 27 m
In the case of m, the depth at the outer peripheral end was 3 mm, and the depth at the inner peripheral end was 5 mm. In addition, the circumferential direction has an extension of 20 °.

The burner 4 has a flame hole 4 opening inward.
0, and a combustion case 3
The burner 4 was fitted to the upper end of a bottomed cylindrical support frame 42 inserted with a space 41 around the inside. The upper end of the combustion case 3 protrudes inward from the flame hole 40, and a secondary air passage 41 a connected to the space 41 is formed between the protrusion 30 and the burner 4. In addition, a protective tube 44 is inserted through an opening 43 at the center of the bottom plate portion of the support frame 42, and a heat-sensitive head 45 urged upward by a spring (not shown) is stored in the protective tube 44. Is placed, the heat-sensitive head 45 is pressed against the pan bottom PB so that the burner 4 can stop burning when the pan bottom PB is overheated. Note that the upper end of the protective cylinder 44 is set lower than the height of the upper surface 21 of Gotoku 2. Even if the pot P is placed on Gotoku 2, the upper end of the protective cylinder 44 remains at the pot bottom PB.
And there is no gap 45B at a predetermined interval. The air that has risen in the protection cylinder 44 passes through a gap 45A between the protection cylinder 44 and the thermal head 45 and blows out radially from the gap 45B to cool the thermal head 45 and prevent the flame F from directly contacting the thermal head 45. By doing so, the problem that the thermal head 45 detects the temperature of the flame F is prevented. The secondary air for combustion is introduced into the combustion housing 3 from the secondary air passage 41a, the gap between the opening 43 and the protective cylinder 44, and the opening 46 formed in the bottom plate of the support frame 42. A hole 44a is formed in the lower part of the peripheral surface of the protection cylinder 44, and the air sucked from the lower end opening of the protection cylinder 44 has a narrow air passage area due to the gap 45A or the gap 45B at the upper end. Part of the flow is diverted from the hole 44a to the outside of the protection cylinder 44 to be used as secondary air for combustion, and at the same time, air is raised along the outer peripheral surface of the protection cylinder 44 so that the flame F does not directly contact the protection cylinder 44. Further, when passing through the hole 44a, the protective cylinder 44 itself is air-cooled. Incidentally, reference numeral 47 in the figure denotes a spark plug.

The combustion case 3 has an inner / outer double wall structure, and a space between the double walls of the combustion case 3 is formed through an opening 31 provided in an inner top plate 10a constituting a ceiling of the combustion case 3 through an opening 31. An exhaust passage 5 communicating with the hollow space 2 was used. The exhaust passage 5 is
An exhaust port 50 is provided at the back of the top plate 10b, and the exhaust fan 5 is provided in the exhaust passage 5 so that forced exhaust can be performed. In addition, the exhaust passage 5 communicates with the hollow interior of the goto 2 through the window hole 24.

With the above configuration, when the burner 4 is ignited, the flame F is covered with the virtues and the pot bottom PB. However, in the portion where the groove 22 is provided, a gap is formed between the pot bottom PB and the bottom surface 22a, and the inside and outside of the gotoku 2 communicate with each other through the groove 22.
2, the flame F inside Gotoku 2 can be seen. In addition, since the inside of the housing 2 is in a negative pressure state due to the action of the exhaust fan 6, even if the groove 22 is formed, the outside air is slightly sucked through the groove 22 and the hot air leaks from the inside. Never. Also, since the line of sight when observing the inner flame F is obliquely downward, the bottom surface 22a and the line of sight become substantially parallel by inclining the bottom surface 22a so as to descend inward. You can see the flames soon. In addition, bottom 22a and pot bottom P
Since the space between the groove 22 and the outer end is narrowed (for example, 3 mm in the vertical direction) and expanded toward the inner end (also 5 mm), the amount of air sucked in by the outer end of the groove 22 is reduced. In addition, it is possible to prevent the inside of the virtues 2 from cooling down to prevent a decrease in thermal efficiency, and to incline the bottom surface 22a so that not only the flame F but also the flame hole 40 can be directly viewed. When the flame hole 40 can be visually checked, it is convenient to confirm the point of fire extinguishing and also to confirm the size of the flame F when reducing the thermal power.

Although not shown in the present embodiment, a notch is provided on one of the inner top plate 10a and the gotoku 2 and a projection is provided on the other, which engages with the notch. 1 faces the front. However, this does not prohibit the positioning to be a position swung right and left according to the use state. Also, a window hole 24 for forcibly sucking hot air was opened in the inner peripheral surface 23 of Gotoku 2,
It may be opened on the inner top plate 10a. In order to completely prevent leakage of hot air and suction of outside air through the groove 22, a heat-resistant glass plate is attached to an inner end or an outer end of the groove 22.
May be closed.

In each of the above embodiments, a ring burner is used. However, other types of burners, such as an open fire burner having a flame hole provided on the outer peripheral surface and a top fire burner having a flame hole provided on the upper surface, may be used. May be used.

[0017]

As is apparent from the above description, even when the ring-shaped virtue is used, the inner flame can be visually observed, and ignition and heat power adjustment can be visually confirmed while preventing leakage of hot air and suction of outside air. can do.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the usage status of a virtues of the present invention.

FIG. 2 is a perspective view of Gotoku.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Gotoku 4 Burner 5 Exhaust passage 6 Exhaust fan 22 Groove 24 Window hole 22a Bottom P pan

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Hisato Takeuchi 2-26 Fukuzumi-cho, Nakagawa-ku, Nagoya-shi, Aichi Rinnai Co., Ltd. (56) References JP-A-7-332685 (JP, A) JP-A Sho 63-220017 (JP, A) Japanese Utility Model Showa 57-12526 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24C 3/02 F24C 3/08 F24C 15/00 F24C 15 / 20 A47J 37/06

Claims (3)

(57) [Claims] 1. An annular circumstance that can abut the bottom surface of a pot and surrounds a flame from a burner, and exhaust means for forcibly sucking hot air generated by the flame and discharging the hot air to the outside through an exhaust passage. A cooking device comprising: a cooking device provided with a cooking device, wherein a top surface of the gorge that abuts against the bottom surface of the pot is recessed, and a groove is provided in which the internal flame can be visually observed when the pot is placed. . 2. The cooking device according to claim 1, wherein the bottom surface of the groove is inclined so as to descend toward the center of Gotoku. 3. The cooking device according to claim 1, wherein the groove is provided toward a front surface of the cooking device.