JPH08266422A - Bread baking device - Google Patents

Abstract

PURPOSE: To bake a bread approx. uniformly without generating an unevenness in the baking by a method wherein, at the center of a loop-form heater main body of a heater for bread baking, a central heat radiation-suppressing plate with a specified width, which suppresses the heat radiation of the heater, is fitted on the heater main body. CONSTITUTION: An external furnace 2 and an internal furnace 3 are formed into a cylindrical shape, and in an annular space 4 between these furnaces 2, 3, a loop-form heater main body 5a of a heater 5 for bread baking is provided concentrically with both furnaces 2, 3. Then, at the center of the loop-form heater main body 5a, a central heat radiation-suppressing part 17 made of iron plate, which suppresses the heat radiation of the heater 5, is fitted on. The width of the central heat radiation-suppressing plate 17 is set to be approx. the same as the interval between both heater ends 5b, 5c, and the heat radiation at the center of the heater main body 5a is suppressed. By doing so, the temperature difference between the high temperature part facing the center of the heater main body 5a of the internal furnace 3 and the low temperature parts facing both heater ends 5b, 5c is almost eliminated. Also, at approx. intermediate locations between the center of the heater main body 5a and both heater ends 5b, 5c, an intermediate heat radiation-suppressing plate made of an iron plate, which suppresses the heat radiation of the heater 5, is fitted on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used for household purposes and, more particularly, to a bread-making apparatus capable of baking bread almost uniformly so as to prevent uneven baking.

[0002]

2. Description of the Related Art Conventionally, an example of this type of bread making apparatus is shown in FIGS. This is casing 1
One side of the inside is a bread making section 1A, and the other side is a control drive section 1B. The bread making section 1A has an outer pot 2
And the inner pot 3 are concentrically arranged, and a bread baking heater 5 is provided in an annular space 4 between the both pots 2, 3.
A kneading blade 7 is fixed to a rotary shaft 6 protruding to the bottom of the inside, and an opening / closing lid 8 is provided on both pots 2 and 3 so as to be openable and closable. In addition, the control drive unit 1B is provided with a control unit (not shown) having operation buttons and the like on the upper portion of the outer peripheral surface thereof.
A drive motor 9 is provided therein, and the drive motor 9 rotates the kneading blade 7 via the pulleys 10 and 11, the belt 12 and the rotary shaft 6.
In addition, 13 is a heat insulating material, and 14 is a bearing that rotatably supports the rotating shaft 6.

In the above structure, the heater 5 is energized to dissipate heat, and the drive motor 9 is driven to drive the kneading blade 7.
By rotating, the bread material put into the inner pot 3 is preheated, stirred, kneaded, fermented and baked to produce bread P.

[0004]

SUMMARY OF THE INVENTION In the above conventional configuration,
The heater 5 is provided in the annular space 4 concentrically with the two pots 2 and 3, and a heater main body 5a integrally extended to both ends of the heater main body 5a and attached to the outer pot 2 as an insulating heater holder. Heater end 5 penetrating 15 and connected to the power supply
b, 5c, and both heater end portions 5b, 5c are separated from each other by a predetermined distance α, the portion of the inner pot 3 facing both heater end portions 5b, 5c becomes the low temperature portion T1. The portion of the heater body 5a facing the central portion is the high temperature portion T2, and the portion sandwiched between the two portions T1 and T2 is the intermediate temperature portions T3 and T4, and the temperature distribution of the entire circumference of the inner pot 3 is unsatisfactory. They are even, and in this state, uneven baking occurs in the baked bread P, and bread having a poor texture is produced.

Therefore, it is conceivable that the heater body 5a is eccentric with respect to the inner pot 3 so that both heater end portions 5b and 5c are brought closer to the inner pot 3 and the central portion of the heater body 5a is moved away from the inner pot 3. However, this can only slightly improve the uneven temperature distribution.

It is also conceivable that the heater main body 5a is elongated so that the distance α between the heater end portions 5b and 5c is 0, and the heater main body 5a surrounds the entire circumference of the inner pot 3. There is a drawback in that the manufacturing cost is high due to the lengthening of the heater body 5a.

In view of the above-mentioned conventional drawbacks, it is an object of the present invention to provide a bread-making apparatus capable of baking bread almost evenly so as to prevent uneven baking, and at a low manufacturing cost. .

[0008]

To achieve the above object, the invention according to claim 1 is characterized in that a loop-shaped heater body of a bread baking heater is provided in an annular space between an outer pot and an inner pot. Both ends of the heater, which are concentrically provided and are opposed to each other at a predetermined distance from each other, penetrate the outer pot and are connected to a power source. The heater is energized to radiate heat, and at the bottom of the inner pot. In a bread making device for manufacturing bread by preheating, stirring, kneading, fermenting and baking the bread material put into the inner pot by rotating the kneading blade, heat dissipation of the heater is suppressed in the central part of the heater body. It is characterized in that a central heat radiation suppressing plate having a predetermined width is externally fitted.

A second aspect of the present invention is characterized in that, in the first aspect of the invention, the width of the central heat radiation suppressing plate is set to be substantially the same as the interval between both heater end portions.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention described above, the central heat radiation suppressing plate is locked to the outer pot.

According to a fourth aspect of the present invention, in the first, second or third aspect of the invention, a predetermined width that suppresses heat radiation from the heater is provided approximately at an intermediate portion between the central portion of the heater body and both end portions of the heater. It is characterized in that the intermediate heat radiation suppressing plates are externally fitted.

According to a fifth aspect of the invention, in the invention of the fourth aspect, the width of each of the intermediate heat radiation suppressing plates is set to be approximately one half of the width of the central heat radiation suppressing plate. It has a feature.

The invention according to claim 6 is the invention according to claim 4 or 5.
In the invention described above, each of the intermediate heat radiation suppressing plates is locked to the outer pot.

[0014]

In the invention described in claim 1, by energizing the heater to radiate heat and rotating the kneading blade,
When prebaking, stirring, kneading, fermenting and baking the bread ingredients put in the inner pot to make bread, the central portion of the heater body is fitted with the central heat radiation suppressing plate, and the heater body Since the heat radiation of the central portion of the heater is suppressed, the temperature difference between the high temperature portion facing the central portion of the heater main body of the inner pot and the low temperature portion facing both ends of the heater can be reduced.

According to the second aspect of the present invention, since the width of the central heat radiation suppressing plate is set to be substantially the same as the distance between both heater end portions, the central portion of the heater body and both heater end portions are The temperature difference can be almost eliminated.

According to the third aspect of the present invention, since the central heat radiation suppressing plate is locked to the outer pot, the central portion of the heater body can be securely fixed to the outer pot, and the central portion thereof can be surely fixed. Since the heat dissipation suppressing plate also serves as a fixture for the heater, the number of parts is reduced and the manufacturing cost is low.

According to the fourth aspect of the present invention, intermediate heat radiation suppressing plates having a predetermined width for suppressing heat radiation of the heater are fitted around the middle portion between the central portion of the heater body and both end portions of the heater. Therefore, not only the temperature difference between the high temperature part facing the central part of the heater body of the inner pot and the low temperature part facing both ends of the heater but also the temperature difference between the middle temperature part sandwiched between both parts is reduced. Therefore, the bread can be baked almost evenly so that uneven baking does not occur.

According to the fifth aspect of the invention, the width of each of the intermediate heat radiation suppressing plates is approximately 2 times the width of the central heat radiation suppressing plate.
Since the width is set to one-half, the temperature distribution over the entire circumference of the inner pot can be made substantially uniform.

According to the sixth aspect of the invention, since the intermediate heat radiation suppressing plates are locked to the outer pot, both side portions of the heater body can be securely fixed to the outer pot. Since the intermediate heat radiation suppressing plate also serves as a heater fixing tool, the number of parts is reduced and the manufacturing cost is low.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a bread-making apparatus according to an embodiment of the present invention, in which an outer pot 2 and an inner pot 3 are formed in a cylindrical shape, and an annular shape between the pots 2 and 3 is formed. A central heat radiation suppressing plate 17 made of an iron plate for suppressing heat radiation of the heater 5 is externally fitted to the central portion of the loop-shaped heater body 5a of the bread baking heater 5 provided concentrically with the both pots 2 and 3 in the space 4. Moreover, the width L1 of the central heat radiation suppressing plate 17 is set so that both heater end portions 5b,
Since it is set to be almost the same as the interval α between the 5c, the heat dissipation in the central portion of the heater body 5a is suppressed, and as a result,
High temperature part T2 facing the central part of the heater body 5a of the inner pot 3.
It is possible to substantially eliminate the temperature difference between the low temperature portion T1 facing the heater end portions 5b and 5c.

Further, iron plate intermediate portion heat radiation suppressing plates 18 and 19 for suppressing heat radiation of the heater 5 are externally fitted to approximately the middle portion between the central portion of the heater body 5a and both heater end portions 5b and 5c. In addition, the heat radiation suppressing plates 18, 1 in the middle thereof
The widths L2 and L3 of 9 are set to approximately half the width L1 of the central heat dissipation suppressing plate 17, and the heater body 5a of the inner pot 3 is
High temperature portion T2 facing both central portions of the heater and both heater end portions 5b, 5
Not only the temperature difference between the low temperature portion T1 facing c and the temperature difference between the intermediate temperature portions T3 and T4 sandwiched between the two portions 5a, 5b and 5c are reduced, so that the temperature distribution of the entire circumference of the inner pot 3 is reduced. Can be almost even.

In the above construction, the heater 5 is energized to radiate heat, and the kneading blade 7 provided at the bottom of the inner pot 3 is rotated to preheat the bread material put in the inner pot 3.
When making bread by stirring, kneading, fermentation and baking,
Since the temperature distribution of the entire circumference of the inner pot 3 is substantially uniform, the bread can be baked substantially evenly so as to prevent uneven baking.

The central heat radiation suppressing plate 17 and the intermediate heat radiation suppressing plates 18 and 19 are fixed tools 20 such as bolts and nuts.
Since it is locked to the outer pot 2 by the above, the central portion and both side portions of the heater body can be reliably fixed to the outer pot 2, and the central heat radiation suppressing plate 17 and the intermediate heat radiation suppressing plates 18, 1 are provided.
Since 9 also serves as a fixture for the heater 5, the number of parts is reduced and the manufacturing cost is low.

In the above embodiment, the outer pot 2 and the inner pot 3 are formed in a cylindrical shape, but the present invention is not limited to this, and FIG.
As shown in FIG. 5, the outer pot 2 and the inner pot 3 can be applied to those formed in a substantially rectangular tube shape.

[0025]

According to the first aspect of the present invention, the central portion of the heater body is fitted with the central portion heat radiation suppressing plate, and the central portion of the heater body is restrained from radiating heat. The temperature difference between the high temperature portion facing the central portion of the heater main body of the inner pot and the low temperature portion facing both ends of the heater can be reduced so that the bread can be baked substantially evenly so as to prevent uneven baking.

According to the second aspect of the present invention, since the width of the central heat radiation suppressing plate is set to be substantially the same as the distance between both heater end portions, the central portion of the heater body and both heater end portions are The temperature difference can be almost eliminated.

According to the third aspect of the present invention, since the central heat radiation suppressing plate is locked to the outer pot, the central portion of the heater body can be securely fixed to the outer pot, and the central portion thereof can be surely fixed. Since the heat dissipation suppressing plate also serves as a fixture for the heater, the number of parts is reduced and the manufacturing cost is low.

According to the fourth aspect of the invention, not only the temperature difference between the high temperature portion facing the central portion of the heater main body of the inner pot and the low temperature portion facing both ends of the heater but also the temperature difference between the both portions is sandwiched between the two portions. Moreover, since the temperature difference between the medium temperature part and the middle temperature part is also reduced, it is possible to bake the bread substantially evenly so that uneven baking does not occur, and it is possible to produce bread having an excellent texture.

According to the fifth aspect of the invention, the width of each of the intermediate heat radiation suppressing plates is approximately 2 times the width of the central heat radiation suppressing plate.
Since it is set to one-half, the temperature distribution of the entire circumference of the inner pot can be made substantially uniform.

According to the sixth aspect of the invention, since each of the intermediate heat radiation suppressing plates is locked to the outer pot, both side portions of the heater body can be securely fixed to the outer pot. Since the intermediate heat radiation suppressing plate also serves as a heater fixing tool, the number of parts is reduced and the manufacturing cost is low.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a bread making apparatus that is an embodiment of the present invention.

FIG. 2 is a horizontal sectional view of the main part.

FIG. 3 is a horizontal sectional view of a main part of a bread making apparatus according to another embodiment of the present invention.

FIG. 4 is a partially cutaway front view showing a conventional bread making device.

FIG. 5 is a horizontal sectional view of the main part.

[Explanation of symbols]

 2 Outer pot 3 Inner pot 4 Annular space 5 Heater 5a Heater main body 5b Heater end 5c Heater end 7 Stirring blade 17 Central heat dissipation suppression plate 18 Intermediate heat dissipation suppression plate 19 Intermediate heat dissipation suppression plate α Between both heater ends Interval L1 Width of central heat dissipation suppression plate L2 Width of middle heat dissipation suppression plate L3 Width of middle heat dissipation suppression plate

Claims (6)

[Claims] 1. A loop-shaped heater body of a bread baking heater is provided in an annular space between an outer pot and an inner pot so as to be concentric with the both pots, and both ends of the heater facing each other at a predetermined interval. The portion is connected to the power source through the outer pot, the heater is energized to radiate heat, and the kneading blades provided at the bottom of the inner pot are rotated to preheat the bread material put in the inner pot, In a bread making device for manufacturing bread by stirring, kneading, fermenting and baking, a central heat radiation suppressing plate having a predetermined width for suppressing heat radiation of the heater is externally fitted to the central portion of the heater body. Bread making equipment. 2. The bread making device according to claim 1, wherein the width of the central heat radiation suppressing plate is set to be substantially the same as the interval between both heater end portions. 3. The bread making device according to claim 1, wherein the central heat radiation suppressing plate is locked to an outer pot. 4. An intermediate heat radiation suppressing plate having a predetermined width for suppressing heat radiation of the heater is externally fitted to approximately the middle portion between the central portion of the heater body and both heater end portions. The bread making device according to claim 1, 2 or 3. 5. The bread making device according to claim 4, wherein the width of each of the intermediate heat radiation suppressing plates is set to be approximately one half of the width of the central heat radiation suppressing plate. 6. The bread making device according to claim 4, wherein each of the intermediate heat radiation suppressing plates is locked to an outer pot.