JP2000210005A - Oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oven capable of uniformly heating or baking a material to be cooked. SOLUTION: This oven comprises: a cooking chamber 6 for heat-cooking a material to be cooked; a hotel pan 34 for receiving the material; and a thermal storage medium 46 for storing an amount of heat. A plurality of guide support rails 32 are vertically mounted to both sides of the cooking chamber 6 at certain intervals; the hotel pan 34 and thermal storage medium 46 are each detachably supported by these guide support rails 32; and the thermal storage medium 46 is disposed between the adjoining hotel pans 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an oven such as a gas oven for cooking foodstuffs.

[0002]

2. Description of the Related Art A gas oven as an example of an oven has a rectangular parallelepiped oven main body, a combustion burner is provided at the bottom of the oven main body, and a cooking chamber is provided above the combustion burner. In the direct heating method, a combustion gas from a combustion burner is directly guided to a cooking chamber, and a material in the cooking chamber is heated by the combustion gas. In addition, in the indirect heating method, the combustion gas from the combustion burner is discharged to the outside through the cylindrical member, the cylindrical member is heated by the discharged combustion gas, and hot air is guided to the cooking chamber through the periphery of the heated cylindrical member. Then, the material in the cooking chamber is heated by the hot air heated while being guided.

[0003]

In these gas ovens, hotel pans containing materials to be cooked are removably arranged in the cooking chamber at intervals in the vertical direction, and are stored in these hotel pans. In order to cook the ingredients uniformly, it is necessary to make the flow of the combustion gas (or hot air) in the cooking chamber substantially uniform. However, for example, when the distance between the vertically adjacent hotel pans is small, when a plurality of types of hotel pans are used, when the height of the material contained in the hotel pans is high or low, or when the combustion gas in the cooking chamber is low. The flow of (or hot air) is not uniform, and there is a possibility that uneven heating or baking may occur in the material stored in the hotel pan.

[0004] In such a gas oven, when cooking, first, the cooking room is emptied to raise the cooking temperature to the cooking temperature, and then the opening and closing door is opened to put the food into the cooking room. Therefore, when the opening / closing door is opened, the combustion gas (or hot air) in the cooking chamber flows from the cooking chamber to the outside, and the temperature inside the cooking chamber rapidly decreases. When the temperature in the cooking chamber decreases as described above, the temperature in the cooking chamber decreases at the initial stage of cooking the ingredients, and there is a problem that it takes time to cook the ingredients. These problems exist in gas steam convection ovens as well as in ordinary gas ovens, and also in electric ovens.

[0005] It is an object of the present invention to provide an oven capable of uniformly heating or baking food to be cooked. Another object of the present invention is to provide an oven that can prevent a sharp drop in the temperature in a cooking chamber.

[0006]

According to the present invention, there is provided a cooking chamber for heating and cooking a material, a plurality of guide support rails disposed on both sides of the cooking chamber and spaced vertically.
An oven comprising: a hotel pan detachably supported by the plurality of guide support rails; and a heat storage member detachably disposed between adjacent hotel pans.

According to the present invention, since the heat storage member is detachably provided between the vertically adjacent hotel pans, the material stored in the hotel pan includes the combustion gas (or hot air) flowing between the hotel pans. And the heat from the heat storage member. Therefore, even if the heat applied from the combustion gas (or hot air) is uneven to some extent, the heat from the heat storage member is applied, so that the heat is almost uniformly applied to the material stored in the hotel pan. So that the material to be cooked can be heated or baked almost uniformly. Also, since a heat storage member is provided in the cooking chamber,
The heat storage member is heated by being emptied prior to cooking, thereby preventing a sharp drop in temperature in the cooking chamber even when the food is put in by opening the open door. Examples of such an oven include a gas oven, a gas steam convection oven, an electric oven, and the like. In the gas oven, either a direct heating method or an indirect heating method can be applied.

In the present invention, the plurality of guide support rails have a substantially U-shaped cross section, and the hotel pan and the heat storage member are detachably supported on these guide support rails. And

According to the present invention, since the hotel pan and the heat storage member are detachably mounted on the guide support rail, the arrangement positions of the hotel pan and the heat storage member can be set relatively freely, and the sizes differ. Even when a hotel pan is used, the heat storage members can be arranged in a predetermined positional relationship. Furthermore, the present invention is characterized in that the heat storage member is formed of carbon.

According to the present invention, since the heat storage member is made of carbon, the heat conductivity of the heat storage member is large, and the heat storage member is easily heated, so that the material to be cooked can be more uniformly heated or baked. Can be.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an oven according to the present invention will be described with reference to the accompanying drawings. still,
In this embodiment, the description will be made by applying to an indirect heating type gas oven, but the present invention is not limited to this, and is similarly applied to a direct heating type gas oven, a gas steam convection oven, and even an electric oven. Can be. FIG. 1 is a front view showing a gas oven as an example of an oven according to the present invention with some parts omitted and some parts cut away. FIG. 2 is a cooking chamber of the oven of FIG. FIG. 3 is a front view showing a part of the vicinity in which the hotel pan and the heat storage member are attached to the cooking chamber of the oven shown in FIG.
FIG. 2 is a partially enlarged perspective view showing a part of a guide support rail provided in the cooking chamber of FIG. 1 in an enlarged manner.

Referring to FIGS. 1 and 2, the illustrated gas oven includes a rectangular parallelepiped oven main body 2, a combustion chamber 4 (see FIG. 1) provided at the bottom of the oven main body 2, and a combustion chamber. A cooking chamber 6 (see FIG. 2) is provided on the upper side of 4. A gas burner 8 is provided in the combustion chamber 4, and fuel gas such as city gas is supplied to the gas burner 8.

As shown in FIG. 1, a plurality of heating exhaust pipes 10 are provided on the back side of the cooking chamber 6. One end of the heated exhaust pipe 10 is connected to the combustion chamber 4, and the other end is connected to the exhaust pipe 12. Therefore, the combustion gas generated by the combustion of the gas burner 8 is
Flows through the plurality of heated exhaust pipes 10 to the exhaust pipe 12, is discharged to the outside through the exhaust pipe 12, and is heated when the combustion gas flows through the heated exhaust pipe 10.

A fan 1 is provided at a substantially central portion on the back side of the cooking chamber 6.
The heating exhaust pipes 10 extend in a curved manner on both sides of the fan 14 in relation to the fan 14. In this embodiment, the three heating exhaust pipes 10
In FIG. 1, the remaining three heating exhaust pipes 10 extend to the right of the fan 14 in FIG.

Cooking room 6 occupying most of the oven body
Is formed in a substantially rectangular parallelepiped shape by a back wall 16, a pair of side walls 18 (a left side wall is omitted in FIG. 2), a bottom wall 20 and a top wall 22, and the combustion chamber 4 is formed below the bottom wall 20. The heating exhaust pipe 10 and the fan 14
Are arranged. A rectangular opening is formed at a substantially central portion of the back wall 16, and this opening is covered by a cover 24 formed of, for example, a wire mesh. In the cooking chamber 6, a support plate 17 (see FIGS. 2 and 3) is provided inside a pair of side walls 18, and a space 19 through which hot air flows is provided between the pair of side walls 18 and the pair of support plates 17. Are formed in each support plate 17, and a large number of holes 21 (see FIG. 2) through which hot air flows are formed. With this configuration, the air in the cooking chamber 6 is guided to the back side of the back wall 16 through the opening covered by the cover 24. The air on the back side of the back wall 16 is supplied from both sides of the back wall 16 to the side walls 18.
Cooking room 6 through space 19 between
Sent inside. An opening / closing door (not shown) is provided on the front side of the cooking chamber 6. The opening / closing door is attached to the oven main body 2 so as to be openable and closable, and when opened, food to be cooked can be put into the cooking chamber 6 and cooked food can be taken out.

On the left side of the oven body 2 in FIG.
An operation panel 26 is provided. The operation panel 26 is provided with various operation switches, and by operating these switches, the cooking conditions of the material to be cooked can be set as desired.

In this embodiment, as shown in FIGS. 2 and 3, the inner surfaces of a pair of support plates 17 in the cooking chamber 6 are
A plurality of guide support rails 32 are provided at substantially equal intervals in the vertical direction, and in this embodiment, ten guide support rails 32 are provided. The guide support rails 32 have substantially the same shape, and in this embodiment, have a substantially U-shaped cross section,
It extends linearly in the insertion direction of the hotel pan 34, that is, in the direction perpendicular to the paper of FIGS. 4, each guide support rail 32 includes a mounting wall 36, a guide support wall 38 projecting inward from a lower end of the mounting wall 36,
An upper guide wall 40 protruding inward from the upper end of the mounting wall 36 is provided, and the mounting wall 36 is fixed to the inner surface of the support plate 17 by, for example, welding. The mounting wall 36, the guide support wall 38, and the upper guide wall 40 define a guide groove for guiding the hotel pan 34. Guide support wall 38 and upper guide wall 40
(See FIG. 4) corresponds to the thickness of the hotel pan 34 inserted into the guide groove, for example, 10 to 15
mm.

Generally, there are a plurality of types of hotel pans 34 having different depths, for example, 25 mm, 65 mm, 100 mm, and 100 mm.
mm, 150 mm and the like. In order to be able to store such various types of hotel pans 34, the intervals between the guide support rails 32 are set as follows, for example. As shown in FIG. 3, the distance H1 between the odd-numbered guide support rails 32 from the top (for example, the distance between the first and third guide support rails 32, the third and fifth guide support rails 3).
Is set to, for example, about 60 mm. Between the adjacent odd-numbered guide support rails 32, the upper odd-numbered guide support rails 32 (eg, first, third,...) And the even-numbered guide support rails 32 (eg, 2 , 4th...) (Based on the upper surface of the guide support wall 38 of the guide support rail 32) is set to, for example, about 35 mm,
Lower odd-numbered guide support rails 32 (eg, third,
..) And an even-numbered guide support rail 32 (second, fourth,...) Above it (based on the upper surface of the guide support wall 38 of the guide support rail 32).
Is set to, for example, about 25 mm.

As shown in FIG. 3, the hotel bread 34 has a bread body 42 having a substantially concave shape, and a flange 44 projecting outward is provided on the entire periphery of the bread body 42. The pan main body 42 and the flange 44 are formed integrally, and the thickness thereof is set to be less than 15 mm, for example, about 5 mm, corresponding to the interval H2 of the guide support rail 32. In such a hotel bread 34, ingredients to be cooked are placed on the bread body 42, and the flanges 44 on both sides of the bread body 42 are inserted into the guide grooves of the corresponding guide support rails 32, and thus a pair of guides is provided. It is detachably supported on the support rail 32. In such a supporting state, the flange 44 of the hotel pan 34 is
The guide pan 38 is supported on the upper surface of the second guide support wall 38, and the guide pan 38 and the upper guide wall 40 prevent the hotel pan 34 itself from being thermally deformed significantly. In addition, as easily understood, the hotel pan 34 is provided with the 1
0 sets of guide support rails 3 (one set each for left and right)
It can be detachably attached to any of the two.

In this gas oven, a heat storage member 46 is provided so as to be attachable between hotel pans 34 arranged vertically. Referring to FIGS. 3 and 5, heat storage member 46 is formed in a rectangular plate shape and has substantially the same size as hotel pan 34. The heat storage member 46 is desirably formed of a material having a high heat transfer coefficient, for example, carbon (heat transfer coefficient K
= 200-250 kcal / m · h · ° C.), copper (thermal conductivity K = 332 kcal / m · h · ° C.), aluminum (thermal conductivity K = 196 kcal / m · h · ° C.), etc. . When the heat storage member 46 is formed of carbon, for example, the entire surface thereof may be coated with, for example, vitro coat (coating with a resin containing carbon fiber and glass fiber). ), And it is particularly desirable to apply the above-mentioned surface treatment to a material formed from carbon. This heat storage member 46
Is inserted into the guide groove of the guide support rail 32,
When the thickness T (FIG. 5) is set to, for example, about 10 to 12 mm and the thickness is reduced, the heat storage effect is reduced, which causes uneven heating and uneven grilling during cooking.

As the heat storage member, the one shown in FIG. 6 can be used instead of the one shown in FIG. Referring to FIG. 6, a heat storage member 46A of this modification is formed in a rectangular plate shape, and a plurality of circular holes 48 are formed at intervals in the vertical and horizontal directions. The size of these holes 48 may be, for example, about 30 to 50 mm in diameter. By forming the holes 48, the hot air in the cooking chamber 6 flows through the holes 48. In addition, these holes 48
When the size of the hole 48 is increased, the mass of the heat storage member 46A itself is reduced, the heat storage effect is reduced, and uneven heating and uneven burning are caused. On the other hand, when the size of the hole 48 is reduced,
The effect of providing the holes 48 is reduced.

The heat storage member 46 (or 46A) is provided, for example, as shown in FIG. FIG. 3 shows a case where cooking is performed using a hotel pan 34 whose overall depth h (FIG. 3) is shallow, for example, whose overall depth is 25 mm. in this case,
The hotel pan 34 containing the ingredients to be cooked is detachably supported on the odd-numbered (first, third, fifth,...) Guide support rails 32 from the top. A heat storage member 46 is detachably supported on the even-numbered (second, fourth, sixth,...) Guide support rails 32 from the top. By arranging the hotel pan 34 and the heat storage member 46 in this manner, the heat storage member 46 is located between a pair of hotel pans 34 that are vertically adjacent to each other.
Mainly applies heat to the ingredients to be cooked stored in the lower hotel pan 34 and performs heating or baking cooking.

When the heat storage member 46 is provided in this manner, a gap H4 between the upper hotel pan 34 and the heat storage member 46 (the bottom surface of the pan main body 42 of the hotel pan 34) so that hot air flows through the gap between the two. It is desirable that the distance between the heat storage member 46 and the upper surface of the heat storage member 46 be, for example, 5 mm or more. In addition, the hot air flows through the gap between the lower hotel pan 34 and the heat storage member 46, and the heat storage member 4
The gap H5 (the distance between the upper surface of the flange 44 of the hotel pan 34 and the lower surface of the heat storage member 46) between them is set so that the heat stored in the pan 6 is applied to the material stored in the hotel pan 34, for example. It is desirable to make it 20 mm or more.

The ingredients placed on the hotel pan 34 in the cooking room 6 are cooked as follows. Mainly FIGS. 1-3
With reference to FIG. 3, during cooking, the fuel gas is burned by the gas burner 8 and the combustion gas is discharged to the outside through the heating exhaust pipe 10 and the discharge pipe 12. As the combustion gas flows through the heated exhaust pipe 10, the heated exhaust pipe 10 is heated. During cooking, the fan 14 is driven to rotate in a predetermined direction. When the fan 14 rotates, the air in the cooking chamber 6 is sucked from the central portion of the fan 14 and
Air is supplied into the cooking chamber 6 through a space between the cooking chamber 6 and the support plate 17, and air is circulated through the cooking chamber 6 and a space on the back side thereof. While the air flows through the space on the back side, that is, flows through between the heating exhaust pipes 10, the air is heated by the heating exhaust pipe 10, and the heated air (hot air) is supplied into the cooking chamber 6, The heated air (hot air) is circulated in this manner, and the cooking chamber 6 is maintained at a substantially constant cooking temperature (a temperature set by operating the operation panel 26).

The hot air supplied to the cooking chamber 6 and flowing above the hotel pan 34 gives heat to the material contained in the hotel pan 34, and the material to be cooked is heated or baked by the hot air. The hot air supplied to the cooking chamber 6 is
The heat storage member 46 flows through the upper and lower spaces of the heat storage member 46, and is heated by the hot air during the flow, so that heat is stored. The heat stored in the heat storage member 46 mainly applies heat to the material stored in the hotel pan 34 below, and the material to be cooked is also heated or baked by the heat from the heat storage member 46. Since the heat storage member 46 is substantially the same size as the hotel pan 34, the heat storage member 46 applies heat almost uniformly to the entire material accommodated in the hotel pan 34, and generates heat from the hot air and heat from the heat storage member 46. As a result, the material to be cooked is cooked or baked almost uniformly, whereby uneven heating and uneven grilling can be reduced.

When the heat storage member 46 is provided in the cooking chamber 6, the heat storage member 46 is heated when empty before cooking. For this reason, when the opening / closing door (not shown) is opened to put food therein, the hot air in the cooking chamber 6 flows to the outside, but the temperature of the cooking chamber 6 drops sharply because the heat storage member 46 is heated. Is prevented.

In this gas oven, the hotel pan 34A whose overall depth is deep, for example, its height is 65 mm.
When using the hotel pan 34A and the heat storage member 46,
For example, they are arranged as shown in FIG. In this case, the hotel bread 34A in which the ingredients to be cooked are stored is detachably attached to the (3n + 1: n = 0, 1,...) (First, fourth,...) (First, fourth,. Supported by Also, from the top (3n + 3: n = 0, 1,...)
The heat storage member 46 is detachably supported on the third (third, sixth,...) Guide support rail 32. By arranging the hotel pan 34A and the heat storage member 46 in this manner, the heat storage member 46 is located between the pair of vertically adjacent hotel pans 34A, and between the upper hotel pan 34A and the heat storage member 46. In addition, a required gap is generated between the heat storage member 46 and the lower hotel pan 34A, and the hot air supplied into the cooking chamber 6 flows through these gaps as required to the hotel pan 34A. The stored ingredients can be heated or baked almost uniformly as described above. There are several types of hotel pans having different depths, and by using the guide support rails 32 described above, the hotel pans 34 ( 34A) and the heat storage member 46 can be detachably supported.

In the embodiment described above, the hotel pan 34
(34A) and the heat storage member 46 by the common guide support rail 3.
2, the heat storage member 46 does not thermally deform even if the temperature changes suddenly. For example, a guide support rail shown in FIG. 8 may be used. Referring to FIG. 8, guide support rail 32 </ b> A is substantially L-shaped, and mounting portion 5 fixed to the inner surface of support plate 17 in cooking chamber 6.
2 and a support portion 54 protruding inward at the lower end of the mounting portion 52. The heat storage member 46 is guided and supported at its side end by the support portion 54 of the guide support rail 32A. The heat storage member 46 can be detachably supported even by using such a guide support rail 32A.

As described above, an embodiment of the oven according to the present invention is applied to a gas oven, but the present invention is not limited to such an embodiment and can be variously modified or modified.

For example, in the illustrated embodiment, ten sets of guide support rails 32 are provided in the cooking chamber 6 at an interval in the vertical direction, so that more food can be cooked at a time. The guide support rail 32
More than 0 sets may be provided, and less than 10 sets of guide support rails 32 may be used to reduce the amount of dishes that can be cooked at a time and make the oven itself compact.

For example, in the illustrated embodiment, the guide support rail 32 (32A) is fixed to the support plate 17, but instead of this, a support frame is provided on the side wall 18, and the support frame is provided on the support frame. The rail may be fixed, or the support frame may be configured to be housed in the cooking chamber, and the guide support rail may be fixed to the support frame.

[0032]

According to the oven of claim 1 of the present invention,
Since the heat storage member is provided between the adjacent hotel pans, the heat from the heat storage member is applied to the material to be cooked, and the material to be cooked can be heated or baked almost uniformly. Further, since heat is stored in the heat storage member, it is possible to prevent a sharp decrease in the temperature of the cooking chamber when the opening / closing door is opened.

According to the oven of the second aspect of the present invention, since the hotel pan and the heat storage member are detachably mounted on the guide support rail, the arrangement positions of the hotel pan and the heat storage member can be set relatively freely. be able to.

Further, according to the oven of the third aspect of the present invention, since the heat storage member is made of carbon, the heat conductivity of the heat storage member is large, so that the heat storage member is easily heated, and the material to be cooked is more uniformly heated. And can be baked.

[Brief description of the drawings]

FIG. 1 is a front view showing a gas oven as an example of an oven according to the present invention, with some parts omitted and some parts cut away.

FIG. 2 is a front view showing a cooking chamber of the oven of FIG. 1 and its vicinity in a partially omitted manner.

FIG. 3 is a diagram schematically showing a state in which a hotel pan and a heat storage member are mounted in a cooking room of the oven of FIG. 1;

FIG. 4 is a partially enlarged perspective view showing a part of a guide support rail provided in the cooking chamber of FIG. 1 in an enlarged manner.

FIG. 5 is a perspective view showing a heat storage member installed in the cooking chamber of FIG.

FIG. 6 is a perspective view showing a modification of the heat storage member.

FIG. 7 is a diagram schematically illustrating a mounted state of a hotel pan and a heat storage member when a high hotel pan is used.

FIG. 8 is a partially enlarged perspective view showing a part of a modified form of the guide support rail in an enlarged manner.

[Explanation of symbols]

 2 Oven body 4 Combustion chamber 6 Cooking room 8 Gas burner 10 Heating exhaust pipe 17 Support plate 32, 32A Guide support rail 34, 34A Hotel pan 46, 46A Heat storage member

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F24C 15/34 F24C 15/34 J

Claims (3)

[Claims] 1. A cooking chamber for heating and cooking a material, a plurality of guide support rails vertically spaced on both sides of the cooking chamber, and a plurality of guide support rails. An oven comprising: a hotel pan detachably supported; and a heat storage member detachably disposed between adjacent hotel pans. 2. The plurality of guide support rails have a substantially U-shaped cross section, and the hotel pan and the heat storage member are detachably supported on the guide support rails. The oven according to 1. 3. The oven according to claim 1, wherein the heat storage member is made of carbon.