KR100626309B1 - Grill - Google Patents

Abstract

[Problem] The baking oven 2 provided with the heating source 21, the opening-closing door 29 which opens and closes the high inlet opening 25 of this baking oven 2, and the high temperature exhaust gas in the baking oven 2 In the grill having an exhaust passage 31 for discharging gas and an exhaust suppressing member for suppressing the flow of the exhaust gas, the exhaust gas remaining in the baking chamber 2 when the opening / closing door 29 is opened after cooking Out of the high inlet 25 to prevent the user from being offended.

[Remedy] The exhaust suppressing member 48 is changed into two states: an exhaust suppressing state which suppresses the flow of the exhaust gas and an exhaust non-inhibiting state which increased the flow of the exhaust gas in comparison with the exhaust suppressing state, The exhaust suppression member 48 changes from the exhaust suppression state to the exhaust non-inhibition state in association with the opening operation of the opening / closing door 29.

Grill, heating source, baking oven, exhaust passage, opening door

Description

Grill {Grill}

1 is a longitudinal cross-sectional view of a grill according to an embodiment of the present invention.

2 is a cross-sectional view of the grill pan 44 withdrawn.

3 is a cross sectional view near the rear end of the baking oven 2. FIG.

4 is a perspective view showing the relationship between the five walls 48 and the grill pan 44.

5 is a diagram showing a modification of the excretion portion of the grill pan 44 '.

6 is an explanatory diagram of a conventional example.

** Description of the symbols for the main parts of the drawings **

2: baking oven 22: ceiling wall

25: high entrance 29: opening and closing door

31: exhaust passage 41: rear opening

44: grill pan 48: five walls

The present invention relates to a grill, and more particularly, to a grill having exhaust measures when taking out fired materials from the grill.

6 is a cross-sectional view of a conventional grill (Patent Document 1 (Japanese Patent Laid-Open No. 2001-248846 (FIG. 1))).

The grill burner 21 which is a heating source is arranged in the upper part of the baking oven 2 formed in the stove main body 1, and the grill pan 22 which draws out with the lower door 23 below is arrange | positioned below, The roasting net 24 put in this is provided.

The lower door 23 has a size that can cover the lower half of the high inlet 25 of the baking oven 2, and the upper door 26 that is openly rotated in conjunction with the opening operation of the lower door 23 is inside the high room. It has a size that can cover the upper half of the inlet (25). When the grill pan 22 is pulled out together with the lower door 23 while holding the handle of the lower door 23, the upper door 26 is opened and rotated in association with the lower door 23. The burned material 4 can be taken out.

On the other hand, in the deep part of the baking bin 2, the plate-shaped exhaust suppression member 28 which descends perpendicularly from the ceiling wall 20 and closes the rear opening part of the baking bin 2 is provided, The upper exhaust port 32 of the exhaust passage 31 formed between the exhaust suppression member 28 and the rear plate 10 of the stove body 1 is open to the atmosphere side.

This is to store the food material, which is the burned material 4, in the baking oven 2 to burn the grill burner 21, so that the light hot exhaust gas stays in the overall space of the exhaust suppression member 28 in the baking oven 2. The excess exhaust gas which is not accommodated in this space exits the exhaust passage 31 under the exhaust suppression member 28 and is discharged to the atmosphere.

This is because the exhaust gas in the baking chamber 2 stays in the space in front of the exhaust suppression member 28 and transmits heat to the vicinity of the baking product 4, so that the baking product 4 can be efficiently heated.

However, in the conventional technique, since the exhaust passage 31 has an exhaust resistance, when the upper and lower doors 26 and 23 on the front face are opened, the exhaust resistance on the high inlet 25 side is higher than that on the exhaust passage 31 side. This became small, and the exhaust gas which stayed in the baking oven 2 escaped to the high inlet 25, and gave the user an unpleasant feeling.

The present invention has been made to solve such a problem, "the baking oven (2) having a heating source,

An opening / closing door for opening and closing the high inlet 25 of the baking bin 2,

An exhaust passage 31 for discharging the exhaust gas in the baking bin 2;

In the grill provided with an exhaust suppressing member for suppressing the flow of the exhaust gas, the exhaust gas remaining in the baking chamber 2 when the opening / closing door is opened after cooking is discharged into the high inlet 25 to make the user uncomfortable. It is a task to be able to prevent giving.

[Invention for claim 1]

Thus, the technical means of the invention according to claim 1 for solving the above problem is that the exhaust control member is located in the exhaust passage behind the baking bin 2, and the posture is changed so as to change the passage area of the exhaust passage. It consists of a plate-shaped body, which has two states: an exhaust suppression state which suppresses the flow of the exhaust gas by changing the passage area, and an exhaust non-inhibition state which increases the flow of the exhaust gas as compared with the exhaust suppression state. To change,
The exhaust suppressing member which is the plate-shaped body changes to the exhaust non-suppressing state by changing the posture in the exhaust suppressing state in conjunction with the opening operation of the opening / closing door.

On the other hand, if the opening / closing door of the high inlet opening 25 is opened after the completion of cooking, the exhaust suppressing member becomes an exhaust ratio suppressing state in association with the opening operation. That is, the exhaust suppressing member changes to the exhaust ratio suppressing state which increases the flow of the exhaust gas as compared with the exhaust suppressing state which suppresses the flow of the exhaust gas.

Therefore, the high temperature exhaust gas remaining in the baking bin 2 is smoothly discharged to the atmosphere via the exhaust passage 31, and prevents the discomfort that the high temperature exhaust gas escapes from the high inlet 25 to the mechanism user side. .

[Invention regarding claim 2]

The method of claim 1,

The exhaust suppressing member is connected to the opening operation of the opening / closing door, and the support shaft 56 is laterally disposed at both sides of the lower end portions of the five walls 48 so that the resistance is rotated in a posture with a high resistance as the exhaust gas flows. The projection wall 56 is a rotating plate freely supported on both sidewalls 33 of the exhaust passage 31 by the support shaft 56. The resistance imparted to the flow of the exhaust gas is reduced (exhaust suppression state), and the exhaust gas is smoothly discharged from the exhaust passage 31 to the atmosphere.

By adopting the rotating plate as the exhaust suppressing member, the resistance to the flow of the exhaust gas can be changed only by changing the rotating angle of the rotating plate, and the state between the exhaust suppressing state and the exhaust non-suppressing state can be changed with a simple configuration. You can change it.

[Invention regarding claim 3]

The method of claim 2,

"The pivoting plate is a wrong wall 48 provided with a pivoting weight 47 at the upper end of the rear side by closing the rear opening of the calciner 2, and is rotated in a shape that falls backward in the standing exhaust suppression state. In the exhaust non-inhibiting state for opening the rear opening top portion ", in which the pivoting plate falls in an upright state (exhaust suppression state closing the rear opening top of the firing chamber 2) in conjunction with the opening operation of the opening / closing door. It rotates to a shape and opens, and the exhaust gas which stayed in the baking bin 2 is discharged | emitted outside via the exhaust path 31 by this.

[Invention regarding claim 4]

The method of claim 3,

"The grill pan which moves in the direction which moves away from the high inlet 25 of the said baking chamber 2 in connection with the opening operation | movement of the said opening / closing door is installed,

The rotating plate rotates in a shape that falls backward in the standing state when the discharge plate is in the discharge ratio suppressed state from the discharge suppressed state,

The pivoting plate is vertically in contact with the rear side of the grill pan in the standing state, and the rear opening of the baking oven 2 is open during cooking in which the opening / closing door is closed. The vertical leg extended to the rotating plate closing the upper part is in contact with the rear end of the grill pan, whereby the rotating plate is maintained in the exhaust suppressed state. In this exhaust suppression state, the exhaust gas of a high temperature stays in a space above the lower end of the rotating plate in the baking chamber 2, and the surplus exhaust gas which cannot be stored in this space escapes to the lower end of the rotating plate and exits the exhaust passage. It is discharged to the (31) side.

On the other hand, the cooking is completed, the opening and closing door is opened, and in connection with this, the grill pan moves toward the outside from the high inlet 25 of the baking oven 2. That is, the grill pan, which is in contact with the front surface of the vertical leg, which is spoken to the pivoting plate opening and closing the rear opening of the rear side of the baking bin 2, moves forward, whereby the pivoting plate pivots backward by gravity to suppress the exhaust ratio. In this state, the exhaust gas in the baking chamber 2 is smoothly discharged to the exhaust passage 31 side.

[Invention regarding claim 5]

The method of claim 3,

A support for supporting a grill pan from below is connected to a rear surface of the opening / closing door, and the pivoting plate rotates in a shape that falls backward in the standing state when the exhaust non-inhibiting state is in the exhaust-inhibiting state. Will be

The pivoting plate is provided with a vertical leg in contact with the rear end of the support in the standing state, wherein the support for supporting the grill pan from the lower side of the pivoting plate is used instead of the grill pan of the invention of claim 4. This rotating plate stands on the front of the vertical leg to keep it in the exhausted state.

[Invention regarding claim 6]

The method according to any one of claims 3 to 5,

`` In the outer circumferential wall rear side of the rear opening upper part of the firing chamber (2) opened and closed by the rotating plate is formed a lap overlapping to the outer circumferential side in the upper side of the standing rotating plate and the both sides connected to it. Unlike the case where the overlap is not provided (for example, when the pivoting plate is smaller than the rear opening), the exhaust passage is formed in the outer peripheral area of the pivoting plate in the exhaust suppression state in which the pivoting plate stands up. There is no leakage of exhaust gas to the side, and the degradation of thermal efficiency can be prevented.

[Invention regarding Claim 7]

The method according to any one of claims 3 to 6,

As for "the ceiling wall of the baking bin 2 is inclined from the front toward the rear opening," the exhaust gas in the baking bin 2 is discharged in the exhaust-suppressing state in which the rotating plate which is the exhaust suppressing member stands up. It stays in a space below the lower end of the rotating plate, and excess exhaust gas leaks from the lower end of the rotating plate to the exhaust passage 31 and is exhausted.

On the other hand, when the rotating plate, which is the exhaust suppressing member, becomes in the exhaust non-suppressing state (reversed in the rearward direction), the high temperature exhaust gas in the baking bin 2 is turned to the ceiling wall of the baking oven 2 which is inclined toward the rear opening. The gas flows toward the exhaust passage 31 while being guided and ascended, and the exhaust gas is discharged more smoothly than when the ceiling wall is horizontal.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment for implementing this invention is described with reference to an accompanying drawing.

1 is a cross-sectional view of a table stove with a grill according to the present invention, in which a baking oven 2 is formed in the stove body 1, which is heated by a grill burner 21 as a heating source, and at the same time the inside of the baking oven 2 is formed. The inlet 25 is opened and closed by the opening / closing door 29. The upper portion 41A of the rear opening 41 of the baking chamber 2 is opened and closed by a five wall 48 which is a rotating plate constituting the exhaust suppression member. And the lower part 41B which is not opened and closed by the five wall 48 among the rear opening 41 is in the open state. In addition, an exhaust passage 31 is formed at the rear of the rear opening 41 so as to communicate with the exhaust opening 32 at the upper end thereof, and as shown in FIG. 1, the five walls 48 stand up to form an upper portion of the rear opening 41. In the exhaust suppression state in which 41A is closed, the exhaust gas escaping from the calciner 2 passes through the lower portion 41B of the rear opening 41, which is below the five walls 48, and moves to the exhaust passage 31 side.

In the present embodiment, the grill 2, which is the object of the present invention, is formed by the heater 2, the grill burner 21, the opening / closing door 29, the five walls 48, the exhaust passage 31, the grill pan 44 described later, and the like. This is composed.

Hereinafter, each part is demonstrated in detail.

[Structure of firing block (2)]

The baking chamber 2 is formed in the shape of a rectangular parallelepiped, and the ceiling wall 20 is provided with a grill burner 21 having a combustion plate 210 having a plurality of flame holes a bored therein. . And the ceiling wall 20 is inclined so that it may become high toward the rear opening 41 at the high inlet opening 25 of the baking chamber 2, whereby the five wall 48 mentioned later rotates back and the rear opening ( When the exhaust ratio is suppressed when the upper portion 41A of the upper portion 41 is opened, the exhaust gas in the baking chamber 2 is guided to the inclination of the ceiling wall 20 so as to smoothly exhaust the exhaust gas.

A grill pan 44 having a square plate shape, which slides back and forth on the bottom surface 43 of the inside of the refrigerator, is connected to the opening / closing door 29 covering the inside opening 25 of the baking oven 2. The roasting net 24 is laid in the fan 44.

[Structure of Exhaust Path 31]

As shown in FIGS. 1 to 3, an exhaust passage 31 extending vertically communicates with the inside of the baking oven 2, and an exhaust port 32 of the exhaust passage 31 is perforated. It is closed by the exhaust guard provided with (50).

In the exhaust passage 31, a round bar-like stopper 49 for horizontally holding the five walls 48, which will be described later, at the maximum opening position is arranged horizontally.

[Structure of Five Walls 48]

Vertical legs 53 and 54 extend downward from both side portions of the lower end of the five wall 48, which is an exhaust suppressing member that opens and closes the upper portion 41A, which is approximately the upper half of the rear opening 41 of the baking bin 2. The support shaft 56 protrudes laterally from both ends of the lower end portion of the five walls 48, and the five walls 56 freely rotate with respect to both side walls 33 of the exhaust passage 31. Supported. Then, in the state in which the opening / closing door 29 is closed and the grill pan 44 is press-fitted into the baking chamber 2, the rear flange 440 of the grill pan 44 may open the front of the vertical legs 53 and 54. Pressurization causes the five walls 48 to stand, thereby entering the exhaust suppression state.

In the exhaust suppression state in which the five walls 48 stand, the lower end 481 of the five walls 48 is positioned at approximately the same height as the roasting network 24, which is a mounting surface of the fired product 4. The dimension is set. In addition, the height of the lower end 481 of the five walls 48 may be appropriately set in view of heating efficiency and smooth exhaust of the planting material 4.

In addition, the rear surface of the rear opening 41, the outer circumferential wall 410 of the calciner 2 is formed with a lap 480 (an oblique region in Fig. 4) extending so that the upper side and the two side sides of the five walls 48 abut. As a result, the exhaust gas in the baking chamber 2 does not leak into the exhaust passage 31 near both sides and the upper side of the five wall 48 in the standing state in the exhaust suppression state.

And the rotation weight 47 is provided in the upper end part of the back side of the five walls 48, and this rotation weight 47 smoothly rears the five walls 48 by gravity by interlocking with opening of the opening-closing door 29. It is designed to be openly rotated.

In addition, it is not necessary to necessarily install the said rotation weight 47 in the five wall 48. As shown in FIG. That is, by arranging the support shaft 56 below the vertical center position of the five walls 48, the five walls 48 can be smoothly opened and rotated to the rear by gravity without providing the rotation weight 47. And the stove gas burner 12 and the base 13 which cover this are provided in the upper surface of the stove main body 1. As shown in FIG.

[Act of action]

Next, an actual operation state of the grill according to the present embodiment will be described.

First, as shown by the imaginary line of FIG. 1, when the grill burner 21 is combusted by placing the planting material which is the baking material 4 in the roasting net 24, the exhaust gas from this grill burner 21 is exhaust-suppressed. It stays in the baking oven 2 above the lower end 481 of the five wall 48 which is in a standing posture in a state, and it heats and heats the baking goods 2 by this, and heats and cooks the baking goods 4 efficiently. You can do it. In addition, surplus exhaust gas which cannot be accommodated in the baking bin 2 by the continuous combustion of the grill burner 21 is discharged to the exhaust passage 31 through the lower end 481 of the five walls 48.

At the time of heating, as described above, the vertical wall 53 and 54 extending downward from the five wall 48 are pressed by the rear side flange 440 of the grill pan 44 so that the five wall 48 stands up. . In addition, the upper side of the five walls 48 and the lap band 480 (an oblique region in FIG. 4) extending inwardly corresponding to both sides thereof are rear surfaces of the outer circumferential wall 410 of the rear opening 41 of the calciner 2. Is formed. As a result, the exhaust gas in the baking chamber 2 does not leak into the exhaust passage 31 near both sides and the upper side of the five walls 48 in the standing state, and efficient heating cooking is performed.

Next, after the heating cooking is finished, the grip pan 44 is pulled out by holding the handle 290 of the opening / closing door 29 to take out the fired material 4, and as shown in FIG. The rear side flange 440 of the) releases a force that pushes the vertical legs 53 and 54 of the five walls 48 backward, and rotates backwards until the five walls 48 contact the stopper 49, and the rear opening ( The upper portion 41A of the opening 41 is opened to become an exhaust emission suppression state, whereby the resistance of the error wall 48 that blocks the flow of exhaust gas is lower than that of the exhaust inhibition state in which the error wall 48 stands. Accordingly, the exhaust gas in the baking chamber 2 is smoothly discharged from the exhaust passage 31 to the atmosphere by being guided along the inclination of the ceiling wall 20 gradually formed toward the rear.

Therefore, the hot exhaust gas in the baking oven 2 is not discharged to the high inlet 25 at the time of opening / closing the door 29, and there is no fear of discomfort to the user of the apparatus.

[etc]

1. In the above embodiment, the lower vertical legs 53 and 54 of the five walls 48 are pushed backward by the grill pan 44 extended to the rear of the opening / closing door 29 to maintain the exhaust suppression state. As shown in the figure, a support 61 supporting the grill pan 44 'from below is connected to the rear surface of the opening / closing door 29, and the support 61 is a vertical leg 53 of the five wall 48. You may press 54 back.

Specifically, as shown in FIG. 5B, the engagement hole 44a is formed in the rear flange 440 'of the grill pan 44'. In addition, the backside flange 440 'of the grill pan 44' and the back side frame flange supporting the grill pan 44 'from below by contacting the bottom surface of the side wall flange 440 " (61) is spoken to the rear of the opening / closing door 29 (refer FIG. 5 (A) (C)). Then, a part of the rear side 611 of the support body 61 is bent upward to form the engaging convex portion 61a engaged with the engaging hole 44a of the grill pan 44 ', and the engagement In the vicinity of the convex portion 61a, the rear protruding portion 61b is formed by bending the rear side 611 rearward in a hairpin shape.

As shown in FIG. 5A, the vertical protrusions 53 and 54 of the five walls 48 can be pressed backward by the rear protrusion 61b of the support 61.

Here, as shown in the solid line of FIG. 5A, in the state where the opening / closing door 29 is closed, the support 61 of the rear flange 440 'and the side flange 440' 'of the grill pan 44' is closed. The support 61 supports the grill pan 44 'from below by being in contact with the bottom surface. In this state, the engaging convex portion 61a formed on the rear side 611 of the support 61 is inserted into the engaging hole 44a of the grill pan 44 'corresponding thereto and engaged therewith, and at the same time, the support 61 The rear protrusion 61b formed on the rear side 611 of the squeezed back presses the vertical legs 53 and 54 formed on the five walls 48 to maintain this in an upright state (exhaust ratio suppression state).

Next, when the opening / closing door 29 is opened after the completion of heating, the opening / closing door 29, the supporting rod 61, and the grill pan 44 'supported by the same move forward, thereby supporting the support 61. The rear projections 61b formed on the rear side 611 of the crankshaft release the pressure on the vertical legs 53 and 54 of the five walls 48 so that the five walls 48 rotate backwards by gravity to suppress the exhaust ratio. It becomes a state.

In addition, when the opening / closing door 29 is opened, the lower bent portion 612 ′ formed near the front end of the side edge 612 of the support 61 slides forward on the bottom wall 250 of the baking chamber 2 so that the high inlet ( Go to 25). Then, when the downward bent portion 612 ′ is separated from the high inlet 25, as shown by the imaginary line of FIG. 5A, the support 61 is inclined forward and the opening / closing door 29 is downward. Is flipped. Therefore, when the burned material is taken out after cooking in the grill pan 44 ', the open / close door 29 is flipped downward as described above, so that the open / close door 29 does not interfere with the withdrawal of the fired product. There is no fear that the worker's wire will contact the upper edge of the opening / closing door 29.

The support 61 has a function of supporting the grill pan 44 'and a function of pressing the vertical legs 53 and 54 formed on the five walls 48 to drop the opening / closing door 29. However, the support 61 may have no function of dropping the opening / closing door 29.

2. In the above embodiment, a case where the present invention is applied to a table stove has been exemplarily described. However, the present invention can also be applied to a drop inrange formed on a countertop of a system kitchen and inserted into an opening. It can also be applied to a single grill not assembled to a stove.

3. A gas burner may be added to both sides of the baking oven as a heating source, and the heating source may be used to heat the foodstuff on both sides.

4. In the said embodiment, although the grill burner 21 (gas burner) was used as a heating source for heating the inside of the baking oven 2, you may use an electric heater instead.

5. In the above embodiment, the exhaust gas after the completion of cooking is smoothly discharged to the exhaust passage 31 by the rotation of the five walls 48. However, as shown by the imaginary line in FIG. The exhaust resistance plate 46 may be disposed in the exhaust passage 31. In this case, during heating and cooking, the resistance plate 46 is placed in an exhaust gas suppression state in a horizontal position, and the resistance plate 46 is vertically positioned in a vertical posture (exhaust non-inhibition state) by interlocking with opening of the opening / closing door 29. To be Specifically, the weight is provided at the lower end of the exhaust resistance plate 46 on which the up and down rotation is freely supported, or the opening / closing door 29 is freely supported above the center of the exhaust resistance plate 46 in the up and down direction. In the open state, the resistance plate 46 is naturally maintained in a vertical position by gravity. When the opening / closing door 29 is closed, the exhaust resistance plate 46 is sucked by an electromagnet (not shown) and rotated to become a horizontal posture. In this case, the fouling wall 48 is not provided.

6. In the above-described embodiment, the grill pan 44 is provided with vertical legs 53 and 54 protruding downward from both sides of the five walls 48 while automatically providing five opening walls. The back wall 48 was urged to be closed by pressurizing the back wall. However, when the back wall 48 was closed, an electromagnet was installed to adsorb and held the back wall 48, and the back wall 48 was closed. ) Is adsorbed and supported in an electromagnet so as to stand in an upright position, and the exhaust door may be in a non-energized state when the opening / closing door 29 is opened. In this case, when the other electromagnet is provided and the opening / closing door 29 is opened, the miscellaneous wall 48 may be adsorbed and held in the open state (the state inclined backward) by the other electromagnet.

As mentioned above, this invention acquires the following effects.

When the opening / closing door of the high inlet opening 25 is opened after the cooking is finished, the exhaust suppressing member becomes the exhaust non-inhibiting state from the exhaust suppressing state in conjunction with this, so that the high-temperature exhaust gas remaining in the baking bin 2 is exhaust passage 31. It can be smoothly discharged to the atmosphere via the, it is possible to prevent the problem that the high-temperature exhaust from the high inlet 25 to the instrument user side.

Since the invention according to claim 2 employs a rotating plate as the exhaust suppressing member, it is possible to change the resistance to the flow of the exhaust gas only by changing the rotating angle of the rotating plate, and with a simple configuration, the exhaust suppressing state and the exhaust ratio The state can be changed between suppressed states.

According to the invention of claim 6, the exhaust gas in the baking chamber 2 does not leak from the outer peripheral region of the rotating plate to the exhaust passage 31 side at the time of cooking, and the degradation of the thermal efficiency can be prevented.

According to the invention according to claim 7, when the rotating plate, which is an exhaust suppressing member, rotates backward from the standing posture, the light-heated exhaust gas in the baking chamber 2 is turned to the ceiling wall of the baking oven 2 which is inclined toward the rear opening. As the guide rises, the exhaust gas is discharged more smoothly than when the ceiling wall is horizontal. On the other hand, during heating and cooking, the rear openings of the firing chamber 2 are closed by the rotating plate so that the hot exhaust gas stays in the firing chamber 2 even if the ceiling wall is inclined in the above state. The heat in me never escapes.

Claims (7)

A baking oven 2 provided with a heating source, An opening / closing door for opening and closing the high inlet 25 of the baking bin 2, An exhaust passage 31 for discharging the exhaust gas in the baking bin 2; In the grill provided with an exhaust suppressing member for suppressing the flow of the exhaust gas, The exhaust suppressing member is composed of a plate-shaped body which is positioned in the exhaust passage behind the baking bin 2 and whose posture is changed to change the passage area of the exhaust passage, and changes the passage area by changing the passage area. It is changed into two states of the exhaust suppression state which suppresses the flow of gas, and the exhaust non-inhibition state which increases the flow of the said exhaust gas compared with this exhaust suppression state, And the exhaust suppressing member which is the plate-shaped body changes to the exhaust non-suppressing state by changing the posture in the exhaust suppressing state in association with the opening operation of the opening / closing door. The method of claim 1, The exhaust suppressing member The support shaft 56 protrudes laterally on both sides of the lower end portion of the five wall 48 so as to rotate from the posture with a high resistance to the posture with the flow of the exhaust gas in association with the opening / closing operation of the opening / closing door. And (56) the erroneous wall (48) is a rotating plate freely rotatable with respect to both side walls (33) of the exhaust passage (31). The method of claim 2, The pivoting plate is a five wall 48 provided with a rotation weight 47 at the upper end of the rear side by closing the rear opening portion of the calciner 2, and rotates in a shape that falls backward in the standing exhaust suppressed state. And said exhaust ratio suppressing state which opens a rear opening top part. 4. The grill pan according to claim 3, further comprising a grill pan that moves in a direction to move away from the high inlet 25 of the baking bin 2 in association with the opening operation of the opening / closing door. The rotating plate rotates in a shape that falls backward in the standing state when the discharge plate is in the discharge ratio suppressed state from the discharge suppressed state. And the vertical legs in contact with the rear of the grill pan in the standing state are spoken to the pivoting plate. 4. The rear surface of the opening / closing door has a support for supporting the grill pan from below, and the pivoting plate is moved rearward from the standing state when it becomes the exhaust non-inhibiting state in the exhaust-inhibiting state. Is to rotate to lose shape, The pivot plate is characterized in that the vertical leg in contact with the back of the support in the standing state is spoken. The outer circumferential wall rear surface of the rear opening part of the said baking oven 2 which is opened and closed by the said rotation plate, The upper side of the said standing rotation plate, and both sides connected to it are affixed. Corresponding to the outer circumferential side is formed a grill, characterized in that formed. The method according to any one of claims 3 to 5, And the ceiling wall of the baking bin (2) is inclined to rise toward the rear opening from the front.

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