JPS63131931A - Smoke disposal device for cooking - Google Patents

Abstract

PURPOSE:To permit the quick and efficient disposal of smoke and smell at the vicinity of the generating source thereof, by a method wherein a ventilating air generating means is provided in a ventilating path and an arm is established on a casing while a hood equipped with a filter is provided so as to be faced to the upper surface of the casing. CONSTITUTION:A casing 1 is provided with a ventilating tube 3 in a condition that it surrounds a combustion unit 2 through an inner frame 12 while a ventilating fan 4, sending air into the ventilating tube 3, is attached to an outer frame 11 and the ventilating tube 3 is provided with a multitude of air injection nozzles 31 as ventilating air ports. An arm 5 is established on the outer frame 11 of the casing and a hood 6 is provided at the tip ends so as to face to the upper surface of the casing while a suction fan 63 and filters 64, 65 are provided in the hood 6. When the ventilating fan 4 and the suction fan 63 are driven, smoke and smell which are generated at the combustion unit 2 are collected and sucked up into the hood 6 by a tornado phenomenon generated by the jet stream of air from nozzles 31,... Thereafter, the smoke and smell are disposed by the filters 64, 65 and cleaned air may be discharged to the outside of the hood.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is a cooking device that is integrated into a cooking device for cooking meat, vegetables, fish, etc., or used in combination with a heating device such as a gas stove. The present invention relates to a flue gas treatment device.

(Prior art) Conventionally, there is almost no protection against smoke and odors generated when cooking with a tabletop heating cooker such as a yakiniku pot, and the only way to deal with it is to use the built-in ventilation fan. Exhaust smoke and odors were expected to fill and stagnate.

(Objective of the Invention) Therefore, the present invention provides a cooking flue gas treatment device that can quickly and efficiently treat flue gas and odors near their sources.

(Structure of the Invention) In the present invention, a casing is provided with an annular air passage having an upwardly directed air outlet, and an air generating means for sending air to this air passage, and an arm is provided upright on the casing. A hood equipped with a filter is provided on the arm so as to face the upper surface of the casing.

With this configuration, exhaust smoke and odors can be taken into the hood immediately after they are generated by a jet of air from the air outlet, and can be processed by the filter.

(Example) Example of an exhaust gas treatment device integrated into a heating cooker (
The first embodiment) is shown in Figs. 1 to 4, the second embodiment of the exhaust gas treatment device used in combination with a heating cooker is shown in Figs. 5 to 7, and the second embodiment is shown in Figs. Other embodiments as modifications of both the first and second embodiments are shown from FIG. 8 onwards.

Each example will be described below. In addition, in the drawings of each embodiment, common parts are indicated by common symbols.

The first embodiment 1 is a casing of a cooking device which also serves as a casing for the apparatus of this embodiment, and the outer frame 11 is formed in a rectangular frame shape similar to that of the first embodiment.
and an inner frame 12 are arranged such that a rectangular annular gap 13 is formed between them. The inner frame 12 of the casing 1 is provided with a grill 21 at the top opening, and burners 2 are arranged below the grill 21.
2. A drain oil guide plate 23 and a drain oil receiver are provided with a book 24, which constitute the combustion section 2 for cooking meat, vegetables, fish, etc.

Further, in the casing 1, a blower pipe 3 is provided in a gap 13 between the outer frame 11 and the inner frame 12, and extends around the entire circumference of the gap.
A blower fan 4 is attached to the outer frame 11 as a blower generating means for blowing air into the blower pipe 3. In the air pipe 3,
A large number of air jet nozzles (hereinafter simply referred to as nozzles) 31 serving as ventilation ports are provided upwardly at predetermined intervals in the circumferential direction, and the surroundings of the combustion section 2 are emitted by the simultaneous jet from each nozzle 31. An upward jet of air is generated. In this case, as shown in FIG. 2.3, each nozzle 31...
The smoke and odor generated in the combustion section 2 (grill 21) are blown out diagonally upward from each nozzle 31 as shown by the arrows in Fig. 2.3, causing a tornado flow of air. It is configured to be rolled up and raised.

An arm attachment portion 14 is provided on the − side in the longitudinal direction of the casing outer frame 11.
is integrally provided, and the arm 5 is erected on the upper surface of the arm attachment portion 14. The arm 5 is formed into a hook shape with an upper part bent toward the inside of the casing, and a hood 6 is provided at the bent tip of the arm 5 so as to face approximately the center of the upper surface of the casing (combustion section 2). This hood 6 is
Air is taken in through a lower opening 61 facing the combustion section 2 and exhausted through an exhaust port 62 provided on the upper surface. Inside this hood 6, a suction fan 63 is provided below the exhaust port 62, a first filter 64 that performs the main filtration function is provided below the suction fan 63, and an auxiliary filter is provided above the fan (at the exhaust port 62 portion). A second filter 65 that performs a filtering action is provided, and both filters 64
．． 65 to filter exhaust smoke and odor.

Note that this hood 6 and casing 1 are connected to the nozzle 31.
The positional relationship and orientation are set such that the air jet caused by the hood 6 is directed toward the hood 6, and the air suction effect due to the tornado phenomenon acts toward the hood 6. Further, in FIGS. 1 to 3, reference numeral 15 denotes a protection net provided at the upper opening of the cavity 13 in the casing 1.

In the above configuration, when the combustion section 2 starts cooking meat, vegetables, fish, etc., and at the same time the blower fan 4 and the suction fan 63 are driven, a tornado is generated by the air jets from the nozzles 31... Due to this phenomenon, smoke and odor generated in the combustion section 2 are captured by this tornado (airflow) and sucked up into the hood 6 at the same time as they are generated. This exhaust smoke and air are then processed by both the first and second filters 64, 65 within the hood 6, and the purified air is discharged outside the hood. Therefore, during cooking, the room is not filled with smoke and odor, and the indoor air is kept clean.

Second Embodiment The second embodiment apparatus shown in FIGS. 5 to 7 has a heating device (
The figure shows a gas stove (this example will be explained below) and is used in combination with H.

That is, 7 is a casing, which is hollow and has a rectangular ring shape, and a gas stove H is installed inside this casing 7.
is now placed. In the casing 7, an annular air passage 71 is formed by the inner space of the casing itself, and in this air passage 71, a large number of nozzles 72... face diagonally upward to the outside, similar to the nozzle 31 of the first embodiment. At the same time, a blower fan 8 that blows air into the air passage 71 is provided on the - side in the longitudinal direction of the casing.

Additionally, an arm attachment portion 73 is provided on the negative side of the casing in the longitudinal direction.
As in the case of the first embodiment, an arm 5 is attached to this arm mounting portion 73, and at the tip of this arm 5, a suction fan 63 and both first and second filters 64 . A hood 6 with a hood 65 is provided respectively.

The operation of the device of the second embodiment is basically the same as that of the device of the first embodiment, and the smoke and odor generated during cooking by the heating device H are generated by air jets from the nozzles 72... Due to the tornado phenomenon, it is sucked into the hood 6 and treated. Furthermore, the device of the second embodiment has the advantage that it can be used in combination with various heating devices such as not only gas stoves but also electric stoves and hot plates.

Other Embodiments (I) In the embodiments shown in FIGS. 8 and 9, as a modification of the partial configuration of the devices of the first and second embodiments,
The arm 5 is configured to be extendable and retractable so that the height of the arm 5, that is, the height of the hood 6, can be adjusted according to the height of the object to be cooked, the height of the heating device, etc.

That is, 5a is a fixed arm portion fixed to the casing 1 or 7, and a movable arm portion 5b to which a hood 6 is attached to the tip is slidably fitted into the fixed arm portion 5a. Reference numeral 51 denotes a cap attached to the upper end of the fixed arm 5a.

A height adjustment dial (hereinafter simply referred to as dial) 52 is attached to the dial shaft 52 at the upper end of the fixed arm portion 5a.
rotatably mounted through a, and inwardly,
A pinion 53 is provided that rotates together with the dial shaft 52a. On the other hand, a rack gear 54 that meshes with a pinion 53 is provided on the inner surface of the movable arm portion 5b, and the meshing action of the pinion 53 and rack gear 54 caused by the rotation of the dial 52 causes the movable arm portion 5b to move up and down, that is, the arm 5 extends and contracts. It looks like this.

Furthermore, in order to prevent the movable arm portion 5b from naturally descending,
A windmill 55 that rotates integrally with a pinion 53 is provided on the dial shaft 52a, and a lock lever 56 that exerts a one-way locking action on the windmill 55 is provided inside the upper end of the fixed arm portion 5a around the lever shaft 56a. A tension spring 57 is provided between the lock lever 56 and the wind turbine 55 to maintain the locking state between the lock lever 56 and the wind turbine 55. Furthermore, a lock release pin 56b is provided protrudingly at the tip of the lock lever 56, and this lock release pin 56b is exposed to the outside through a pin guide hole 58 provided in the upper end wall of the fixed arm portion 5a. It has been derived. By rotating this lock release pin 56b from the outside, the lock lever 56 is disengaged from the wind turbine 55 and the pinion 55 is released.
3 becomes rotatable in the movable arm part lowering direction (arm contraction direction). Note that 59 is an escape groove for the dial shaft 528 and the like provided on the peripheral wall of the movable arm portion 5b.

According to this configuration, the length of the arm 5 can be adjusted by rotating the dial 52 depending on the object to be cooked, the height of the heating device, etc.
In other words, the height of the hood 6 can be adjusted freely, making it easy to use.

(II) FIG. 10 shows a modification of the device of the second embodiment. The casing 9 has a rectangular annular shape as a whole including a base 9a having an arm attachment portion 91 and a blow pipe 9b.

The blower pipe 9b includes a plurality of flexible tubes 92 formed in a bellows shape from a flexible material such as plastic or rubber, which can be expanded, contracted, and flexibly deformed, and connecting tubes 93, which can be expanded, contracted, and flexibly deformed. For example, - nozzles 94 are provided in each connecting pipe 93 . Also, nozzles 94 are provided in the inner cavity 95 of the base 9a, and an annular air passage is formed by the base inner cavity 95 and the air pipe 9b.

With this configuration, the blower pipe 9b is connected to the flexible pipe 92.
Because it is expandable, contractible, and flexibly deformable, the external shape and external dimensions of the blower pipe 9b can be changed depending on the size or shape of the heating device, for example, the gas stove H. This will expand the uses of this device (the types of applicable heating devices).

Further, in this configuration, if the connecting pipes 93 are configured to be rotatable around their axes, it is also possible to adjust the direction (blow direction) of the nozzles 94.

(I[[) In both the first and second embodiments, the hood 6 is arranged so as to face approximately the center of the casings 1, 7 (or 9). On the other hand, in the embodiment shown in FIGS. 11 and 12, the hood 6 is disposed offset from the center of the casing in the longitudinal direction in a plan view. The figure shows an example based on the configuration of the second embodiment,
The hood 6 is arranged so as not to face the central part of the gas stove H, but to face a part displaced from the central part in the longitudinal direction of the casing. In this case, the upper surface of the casing 7 is formed to be inclined, leaving the longitudinal direction side portion, so that the smoke etc. generated by the gas stove H are reliably sucked into the hood 6.
Air jets from the nozzles 72 are directed toward the hood 6.

According to this configuration, the hood 6 is located away from directly above the combustion surface of the cooking device or the heating device, making it possible to use a wide space above the combustion surface, making it easier to cook.

Incidentally, it is desirable that the nozzle (ventilation opening) be provided diagonally upward toward the hood 6 as shown in the above embodiments, so that the air jet generated by the nozzle causes a tornado phenomenon. Even when the hood is directed toward the hood 6, the upward air jet acts to guide smoke and the like to the hood 6, so that a good smoke exhaust treatment effect can be achieved. ′(
Effects of the Invention) As described above, according to the present invention, an upward air jet is created around the combustion part or heating device of a cooking device, and smoke and odor generated in the combustion part or heating device are removed by this air jet. Since the smoke is taken into the hood and filtered through the hood's filter, the smoke and odors during cooking can be quickly and efficiently disposed of near the source. Therefore, during cooking, the room is not filled with smoke or odor, and it is possible to cook comfortably while keeping the indoor air clean.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the first embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a sectional view taken along the line -■ in Fig. 1, and Fig. 4 is a sectional view taken along the line IV-- The enlarged sectional view taken along line IV, FIG.
FIG. 6 is a perspective view showing the embodiment, FIG. 6 is a line VI-Vl in FIG. 5, FIG. Figures 9 and 9 are enlarged cross-sectional views of the same, Figures 13-10 are partial perspective views showing other embodiments of the air blowing passage configuration, and Figure 11 shows other embodiments of the hood arrangement and air blowing configuration. The perspective view and FIG. 12 are the same side views. 1...Casing, 3...Blow pipe (air duct), 31
...Nozzle (ventilation port), 4...Blower fan (air blowing means), 5...Arm, 6...Hood, 64.6
5... Filter, 7... Casing, 71... Air channel, 72... Nozzle (air outlet), 8... Air blowing fan (air blowing means), 9... Casing, 9b...・
Air pipes that make up the air passage. Patent applicant Matsushita Electric Works Co., Ltd. Representative Patent attorney Etsushi Kotani
Patent Attorney Chief 1) 1 Patent Attorney Yasuo Itaya Figure 3 Figure 4 Figure 8 Figure 9 Figure 10 Figure b Figure 11

Claims (1)

[Scope of Claims] 1. The casing is provided with an annular air passage having an upward air outlet, and an air generating means for sending air to the air passage, and an arm is provided upright on the casing, and the arm A cooking exhaust smoke processing device, characterized in that a hood equipped with a filter is provided facing the top surface of the casing. 2. The cooking flue gas processing device according to claim 1, wherein the arm is configured to be extendable and retractable by a fixed arm portion and a movable arm portion. 3. The exhaust gas processing device for cooking according to claim 1, wherein the air blowing path is configured to be expandable, contractible, and flexibly deformable by a tube body that can be expanded, contracted, and flexibly deformed. 4. The cooking smoke exhaust according to claim 1, characterized in that the hood is arranged to be offset to one side from the center of the casing in plan view, and the ventilation opening is provided toward the hood. Processing equipment.