JP2966766B2 - Gas roaster - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas roaster and, more particularly, to a method for heating a roasting case using a long burner.
The present invention relates to a technique for making the temperature distribution uniform by using such a method, and for facilitating the manufacture of such a long burner.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 14, in a gas roaster, long burners 2a and 2b are arranged opposite to a lower portion of a roasting case 1, and the long burners 2a and 2b have Its longitudinal direction
A large number of flame holes 18 are formed at intervals in the direction , and the inside of the roasting case 1 is heated and cooked by burning in these flame holes 18.

In this case, as shown in FIG. 14 (b), the flame holes 18 are arranged in a staggered manner in the longitudinal direction of the long burners 2a, 2b, and are roasted outside the long burners 2a, 2b. The louver pieces B are provided in a zigzag pattern on the inner side of the baking case 1 so as to match the zigzag pattern of the flame holes 18, and the staggered phases of the long burners 2a and 2b facing left and right are opposed to each other. Are different from each other.

However, although the secondary air is introduced along with the combustion in the staggered flame holes 18, the louver piece B acts as a barrier, and in the staggered upward flame holes 23, As shown by reference numeral A in FIG. 16, the hot air is allowed to spread to the upper side of the roasting case 1, and in the downwardly facing flame holes 24 of the staggered shape, as shown by reference numeral B, the roasting case 1 The hot air spreads to the central portion of the roasting case 1, and as a result, the temperature distribution in the internal heating of the roasting case 1 is to be made uniform.

[0005]

However, in such a structure, the louver pieces B arranged in a direction substantially perpendicular to the direction of introduction of the secondary air allow the flame holes 18 to be formed.
.., The secondary air flow collides with the louver piece B and becomes turbulent, so that not only the predetermined directivity cannot be obtained but also the adjacent introduction zone. In a, b ..., the secondary air is mixed in the adjacent portions and interferes with each other's directivity, making it difficult to obtain a predetermined directivity. As a result, in the wide roasting case 1, the internal temperature There was a problem that it was difficult to make the uniformity.

Further, in order to provide directivity in the introduction of the secondary air in this way, the louver piece B is hung outside the long burners 2a and 2b. In such a configuration, the long burner 2a is provided. , 2b and the louver piece B are separate from each other, so that it is difficult to obtain mutual positional accuracy, it is difficult to obtain a predetermined directivity in the introduction of secondary air, and the production becomes troublesome. Was.

The present invention has been made in view of such a problem, and an object of the present invention is to surely maintain a directivity different from that adjacent to each other in each introduction zone, and to increase the width of the width. Even in the roasting case, it is possible to sufficiently spread hot air to the central portion thereof, and yet avoid interference of secondary air in the adjacent introduction zone, and achieve a uniform temperature distribution in a favorable manner. It is an object of the present invention to provide a gas roasting device which can accurately position a flame hole provided in a burner and a guide with each other to easily manufacture such a long burner.

[0008]

According to the first aspect of the present invention, a roasting machine is provided.
The long burner 2a disposed on the side of the baking case 1 is
A pipe body in which flame holes 18 are formed along the direction
20 for the introduction of secondary air curved into a substantially C-shaped cross section outside
The plate 22 is provided with a secondary air guide.
The input plate 22 is a guide for providing directivity in the direction of introduction of the secondary air.
Is provided at intervals in the longitudinal direction of the long burner 2a.
And the guide 3 is aligned with the longitudinal direction of the long burner 2a.
The secondary air flow has a plane perpendicular to the longitudinal direction of the long burner.
Provided with partition pieces 3a to be sectioned and introduced in
Secondary air is introduced into the partition piece 3a in contact with the
The use plate 22 is connected to the pipe body 20 .

In the second aspect, the secondary air introducing plate 2 is provided.
2 is characterized in that secondary air introduction holes 21 are formed at intervals in the longitudinal direction . Claim 3
, The pipe body 20 is substantially cylindrical, and the pipe body 2
The central portion in the vertical direction of 0 along the longitudinal direction burner port 1 in a row
8 are formed, and auxiliary flame holes 23,
24 are arranged in a zigzag pattern.

According to a fourth aspect of the present invention, the lower auxiliary flame hole is formed to have a larger diameter than the upper auxiliary flame hole. In the fifth aspect, the guide 3 has a long burner 2a between adjacent partition pieces 3a.
And a louver piece X for guiding the secondary air obliquely downward from above the long burner 2a at a predetermined distance from the outer surface of the long burner 2a and in a longitudinal direction of the long burner 2a. It is characterized by the following.

In the sixth aspect, the long burners 2a, 2b
b are disposed opposite to both sides of the roasting case 1, and the staggered phases of the flame holes 18 of the left and right long burners 2a, 2b are
It is characterized in that they are different from each other at opposing portions.

[0012]

According to the first aspect, in the introduction of secondary air accompanying combustion in the long burner 2a, a method of introducing secondary air is used.
The guide 3 which gives directionality is in the longitudinal direction of the long burner 2a.
The guide 3 is long.
The secondary air flow having a surface orthogonal to the longitudinal direction of the burner 2a
Partitioning in the longitudinal direction of the long burner
Because of the provision of the strip 3a, it is possible to avoid giving resistance to the introduction of the secondary air, and the hot air supplied and burned by the secondary air is sufficiently transmitted to the central portion of the roasting case 1. It is possible to sufficiently heat the entire roasting case 1 even in the wide roasting case 1 and to avoid mutual interference of the secondary air in the adjacent introduction zones a and b. Also in this respect, it is possible to sufficiently spread the hot air in each of the introduction zones a and b to a predetermined location while maintaining its directivity. Moreover, a long burner
2a itself is a secondary air introduction plate 22 provided with a guide 3
The positioning of the flame hole 18 and the guide 3
And the directivity for introducing the secondary air can be sufficiently ensured. In addition, partition of guide 3
The secondary air introduction plate 22 is connected to the pipe body 20 with the piece 3a.
Therefore, the manufacture of the long burner 2a is also easy.

In the second aspect, the secondary air introduction hole 2 is provided.
The mutual positioning accuracy between the guide 1 and the guide 3 can be improved. Further, directivity for introducing the secondary air by the guide 3 can be ensured. In the third aspect, the lift phenomenon in which the flame separates from the flame holes 18 can be avoided by the upper and lower auxiliary flame holes 23, 24.

According to the fourth aspect, a large amount of combustion gas is ejected from the large-diameter auxiliary flame hole 24 whose directivity is directed downward, so that the hot air can sufficiently spread to the central portion of the roasting case 1. The temperature distribution in the roasting case 1 can be made uniform. According to the fifth aspect, the louver piece X can give the introduced secondary air a directivity that is directed obliquely downward, so that the directivity can be further ensured.

In the sixth aspect, the long burners 2a, 2b
Since the b is disposed on both sides of the roasting case 1 so as to be opposed to each other, the internal temperature inside the roasting case 1 can be made uniform by the long burners 2a and 2b facing each other. The staggered phase of the flame holes 18 of the long burners 2a, 2b
By making them different from each other at the opposing portions, the uniforming of the temperature distribution in the roasting case by the opposing long burners 2a and 2b can be further promoted.

[0016]

FIG. 1 is a perspective view of a gas roaster A.
As shown in FIG. 3, the gas roaster A is incorporated as a grill cooker in a central portion below a gas cooker 4 provided with gas stoves 5 and 5 at an upper portion. Hereinafter, the configuration of the gas roaster A will be described in detail. FIG. 2 is an exploded perspective view of the gas roasting device A. The roasting case 1 of the gas roasting device A has a substantially inverted U-shaped cross section and a case main body 6 having an upper opening 14 formed in a top plate portion.
A bottom body 7 having a substantially U-shaped cross section with a shallow bottom is vertically opposed, a rear plate 9 is connected to a rear end of such a cylindrical body 8, and a front plate 10 is connected to a front end of the cylindrical body 8. 4, a slit 29 is formed between the case body 6 and the side plate of the bottom body 7, as shown in FIG.
a and 2b are attached to the roasting case 1 and the upper burner 15 is attached to the upper opening 14 of the top plate portion of the case main body 6 so that the inside of the roasting case 1 can be heated.

Lid 2 for opening and closing the front opening of roasting case 1
A water receiving tray 35 is removably mounted on a support frame 11 attached to the support 8, the legs of the grill 12 are mounted on the water receiving tray 35, and the support frame 11 has a rail shape of the cylindrical body 8. 30 and slidably mounted on the cover 28.
The handle 13 can be pulled out forward.
The structure for drawing out the water receiving tray 35 is well known.

Such a gas roaster A is formed to have a relatively wide width.
The left and right long burners 2a and 2b and the upper burner 15 make the internal temperature uniform so that good roasting can be performed. Hereinafter, the configuration of the long burners 2a and 2b will be described in detail. FIG. 5 shows a long burner 2a, which is attached to the left side of the roasting case 1.
The long burner 2a is formed into a pipe body 20 by connecting two plate members 16, 17 press-formed into a substantially half-cylindrical shape by welding or the like, and a large number of flame holes 18 are formed in the inner plate member 16,
The combustion gas mixed with the primary air is introduced from the inlet 19 at the rear end of the long burner 2a and can be ejected from the flame holes 18. A secondary air introduction plate 22 having secondary air introduction holes 21 formed therein is caulked and fixed to such a pipe body 20, and the long burner 2a is assembled.

FIG. 7 shows a plate 22 for introducing secondary air. The plate 22 for introducing secondary air includes an upper plate 26 shown in FIG. 9 and a lower plate 27 shown in FIG. Although they are connected with each other by 32, they may be formed in series. A slit-shaped secondary air introduction hole 21 is punched in the upper plate member 26 and the lower plate member 27,
26 around the portion provided with the secondary air introduction hole 21
Is a guide 3 having partition pieces 3a bent from both ends.
Is provided . The shape and configuration of the secondary air introduction plate 22 can be variously changed. Such a plate for secondary air introduction 22
Are bent so that the end faces of the partition pieces 3a.
, The secondary air introduction plate 22 is caulked and fixed to the pipe body 20 and integrated to form a long burner 2a. The long burner 2b disposed on the right side of the roasting case 1 has the same configuration.

As shown in FIG. 11, the pipe body 20 of the long burner 2a installed on the left side of the roasting case 1
Of the flame holes 33 formed in a row at the upper and lower central portions of the plate member 16, the auxiliary flame holes 23 are vertically staggered.
The diameter of the lower auxiliary flame hole 24 is larger than the diameter of the upper auxiliary flame hole 23. Thus, the combustion gas is injected obliquely upward near the side portion of the roasting case 1 from the small upper auxiliary flame hole 23 [FIG.
(See (c) of (a).] In such an introduction zone (a), the hot air spreads to the vicinity of the side of the roasting case (1),
The temperature near the side is sufficiently raised, and a large amount of combustion gas is injected from the lower large-diameter auxiliary flame hole 24 along the bottom body 7 of the roasting case 1 to the center of the roasting case 1. [Refer to the symbol d in FIG. 13A], so that the hot air spreads to the central portion of the roasting case 1 in such an introduction zone b.

As described above, in the introduction of the secondary air accompanying the combustion in the long burner 2a, the introduction of the secondary air flow is performed.
Guide 3 gives directionality in the direction
In addition, the long burner 2a is guided as a surface orthogonal to the longitudinal direction.
The partitioning piece 3a having the conducting surface S is a long bar
Since it is sectioned and introduced in the longitudinal direction of the nut 2a ,
It is possible to avoid giving a resistance to the introduction of the secondary air, and to sufficiently introduce the secondary air to the central portion of the roasting case 1. You can do it well. Moreover, the guide surface S is formed substantially parallel to the secondary air introduction direction, so that it is possible to avoid mutual interference of the secondary air in the adjacent introduction zones a, b,. The hot air in the introduction zones a, b,... Is spread to a predetermined location while maintaining its directivity.

The pipe body 20 of the long burner 2b installed on the right of the roasting case 1 has a flame hole 18 as shown in FIG.
Of the flame holes 33 formed in a row at the upper and lower central portions of the plate member 16, the auxiliary flame holes 23 are vertically staggered.
4 are formed, of which the lower part (in FIG. 12A,
The auxiliary flame hole 24 is located above the paper surface in the drawing.) The diameter of the auxiliary flame hole 24 is made larger than the diameter of the upper auxiliary flame hole 23, and combustion is performed from the large-diameter lower auxiliary flame hole 24. A large amount of gas is injected along the bottom body 7 of the roasting case 1 to the central portion of the roasting case 1 (see reference numeral e in FIG. 13A),
In such an introduction zone c, the temperature of the central portion of the roasting case 1 is sufficiently increased so that a large amount of hot air spreads to the central portion of the roasting case 1, and a small diameter upper auxiliary flame hole is provided. From 23, combustion gas is injected obliquely upward in the vicinity of the side of the roasting case 1 (refer to the reference numeral in FIG. 13A). Hot air spreads obliquely upward.
Such introduction zones a to d are partitioned by partition pieces 3a. Thus, the directivity of the secondary air divided by the partition pieces 3a in the introduction zones a, b: c, d is different from that of the adjacent one and different from that of the opposite one.

As described above, since the directivity of the secondary air divided by the guides 3 in the introduction zones a, b: c, d is different from that of the adjacent one, the introduction zones a, b : It is possible to spread hot air according to the directivity set in c and d, and to achieve a uniform temperature distribution in the roasting case 1. Specifically, the directivity of the introduction zones a and d of the left and right long burners 2a and 2b is set diagonally upward near the side inside the roasting case 1, and the directivity of the adjacent introduction zones b and c is set. Since the property is set slightly downward, hot air is supplied obliquely upward near the side of the roasting case 1, and the hot air is supplied along the bottom body 7 of the roasting case 1. This is because hot air is supplied to the central portion to make the temperature distribution inside the roasting case 1 uniform. Furthermore, since the directivity of the opposing introduction zones a, b, c, and d in the opposing elongate burners 2a and 2b are different from each other, the temperature distribution in the roasting case 1 by the opposing elongate burners 2a and 2b. To promote the uniformity of

The secondary air introduction plate 22 will be described in more detail. The hole 21 for secondary air introduction of the plate 22 for secondary air introduction is
The portions corresponding to the introduction zones a and d are formed in the narrow slits 21a to limit the supply amount of the secondary air, and the secondary air introduction holes 21 correspond to the introduction zones b and c. The part at the point is formed in two thick slits 21b at the top and bottom to make the supply amount of the secondary air sufficient, and in each of the introduction zones a, b: c, d,
Secondary air can be supplied in accordance with the amount of combustion gas.

At a position corresponding to the introduction zones b and c at the upper edge portion of the secondary air introduction plate 22, a horizontal plate-like louver piece X bent obliquely downward is formed.
As shown in (b), the secondary air introduced from the upper thick slit 21b is given a directivity obliquely downward, so that the directivity in the introduction zones b and c is further ensured. Such a louver piece X constitutes the guide 3 of the present invention together with the guide surfaces S on both sides of the partition piece 3a, but the louver piece X is not necessarily required.

[0026]

According to the first aspect, the side portion of the roasting case is provided.
The long burner arranged in the
It is bent into a substantially C-shaped cross section outside the pipe body
And a secondary air introduction plate.
Therefore, the secondary air introduction plate has directivity in the secondary air introduction direction.
Guides are provided at intervals in the longitudinal direction of the long burner.
The guides are aligned with the longitudinal direction of the long burner.
Intersecting surfaces to direct the secondary air flow in the longitudinal direction of the long burner
Equipped with a partition piece to be introduced and divided into pipes.
The secondary air introduction plate is a pipe at the partition
Because it is connected to, it is possible to avoid giving resistance to the introduction of secondary air accompanying the combustion in the long burner, and the hot air supplied and burned by the secondary air is supplied to the central part of the roasting case. Can be sufficiently achieved, and even in a wide roasting case, the entire heating can be sufficiently performed, and further, it is possible to avoid interference between the secondary air in the adjacent introduction zones. Also in this point, there is an advantage that the hot air in each introduction zone can sufficiently spread to a predetermined location while maintaining its directivity. Moreover, the long burner itself is provided with a guide.
Because of the provision of the secondary air introduction plate, the
Positioning can be performed reliably, sufficient directivity for introducing secondary air can be secured , and guide specifications can be maintained.
The secondary air introduction plate is connected to the pipe by a piece.
For this reason, it is easy to manufacture a long burner.

According to the second aspect of the present invention, since the secondary air introduction plate is formed with the secondary air introduction holes at intervals in the longitudinal direction , the mutual positioning of the secondary air introduction holes and the guide is made. There is an advantage that the accuracy can be improved and the directivity for introducing the secondary air by the guide can be further secured. In claim 3, the pipe body is substantially cylindrical, and flame holes are formed in a row along the longitudinal direction at the center in the vertical direction of the pipe body, and auxiliary flame holes are arranged in a staggered manner above and below these flame holes. Since it is arranged, there is an advantage that the lift phenomenon in which the flame separates from the flame hole can be avoided by the upper and lower auxiliary flame holes.

In claim 4, since the lower auxiliary flame hole has a larger diameter than the upper auxiliary flame hole, a large amount of combustion gas flows from the large auxiliary flame hole whose directivity is directed downward. There is an advantage that the hot air can be spouted out and sufficiently spread to the central portion of the roasting case, and the temperature distribution in the roasting case can be made uniform. In claim 5, the guide, between adjacent partition piece, elongated burner elongated burner with separate predetermined distance from the outer surface in the longitudinal direction becomes a plate-like, elongated burner secondary air Since the louver piece that guides obliquely downward from above is formed, the louver piece can give the directivity directed diagonally downward to the introduced secondary air,
There is an advantage that directivity can be further ensured.

In the present invention, since the long burners are disposed opposite to both sides of the roasting case, the internal temperature in the roasting case can be made uniform by the opposed long burners. In addition, since the staggered phases of the flame holes of the left and right long burners are different from each other at the opposing portions, the temperature distribution in the roasting case by the opposing long burners is further promoted to be uniform. There is an advantage that can be.

[Brief description of the drawings]

FIG. 1 is a perspective view of a roasting case of a gas roaster according to one embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is an external perspective view of the gas cooking device.

FIG. 4 is a partial side view of the roasting case.

FIG. 5 is a perspective view of a left long burner of the above.

6A is a cross-sectional view of an elongated burner in an introduction zone a, and FIG. 6B is a cross-sectional view in an introduction zone b.

FIG. 7 is a perspective view of the secondary air introduction plate before caulking before.

FIG. 8 is a schematic front sectional view showing a positional relationship among the long burner, a water receiving tray, and a grill in the above.

FIG. 9A is a rear view of an upper plate material of a plate for secondary air introduction,
(B) is a bottom view and (c) is a side view.

10A is a front view of a lower plate material, and FIG. 10B is a side view.

11A is a front view of a left long burner pipe body, FIG. 11B is a side sectional view, and FIG. 11C is a partially enlarged front view.

12A is a front view of a pipe body of a right long burner, FIG. 12B is a side sectional view, and FIG. 12C is a partially enlarged front view.

13 (a) is an operation explanatory view of the roasting case viewed from above for explaining a heating state inside, and FIG. 13 (b) is a schematic side sectional view.

14A and 14B are perspective views of a conventional example.

FIGS. 15A and 15B are explanatory diagrams of an operation of a conventional example.

FIGS. 16A and 16B are explanatory diagrams of an operation of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roasting case 2a Long burner 2b Long burner 3 Guide 18 Flame hole 20 Pipe body 21 Secondary air introduction hole 22 Secondary air introduction plate S Guide surface

Continuation of the front page (56) References JP-A-52-14935 (JP, A) JP-A-58-24714 (JP, A) JP-A-60-117012 (JP, A) , U) Japanese Utility Model Showa 49-19346 (JP, U) Japanese Utility Model Hei 1-101031 (JP, U) Japanese Utility Model Showa 56-66624 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB Name) F23D 14/02 A47J 37/06 366 F23D 14/10 F23D 14/30

Claims (6)

(57) [Claims] An elongated bar disposed on a side of a roasting case.
Pipe body with a flame hole formed along the longitudinal direction
A secondary air introduction plate curved approximately C-shaped in cross section
The secondary air introduction plate is arranged and configured
A guide that gives directivity to the direction of secondary air introduction is a long bar
Are provided at intervals in the longitudinal direction of the
Has a surface perpendicular to the longitudinal direction of the long burner and
Introduce the air flow by dividing it in the longitudinal direction of the long burner
With a partition piece, the above-mentioned partition piece that contacts the pipe body
A gas roaster comprising a plate for secondary air introduction connected to a pipe body . 2. The gas roaster according to claim 1, wherein the secondary air introduction plate is formed with secondary air introduction holes spaced apart in the longitudinal direction . 3. The pipe body is substantially cylindrical, and flame holes are formed in a row at the center of the pipe body in the vertical direction along the longitudinal direction , and auxiliary flame holes are arranged above and below these flame holes in a staggered manner. The gas roasting device according to claim 1, wherein the gas roasting device is formed. 4. The gas roasting device according to claim 3, wherein the lower auxiliary flame hole has a larger diameter than the upper auxiliary flame hole. The method according to claim 5 the guide, between adjacent partition piece becomes a plate shape in the longitudinal direction of the long burner with separate predetermined distance from the outer surface of the elongate burner, the upper elongated burner secondary air 2. The gas roaster according to claim 1, wherein a louver piece is formed to guide the louver obliquely downward from the louver piece. 6. A long burner is disposed opposite to both sides of the roasting case, and the staggered phases of the flame holes of the left and right long burners are different from each other at the opposed portions. The gas roaster according to claim 3 or 4, wherein