JPH0420335B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a bread baking apparatus for home use.

BACKGROUND ART Conventionally, this type of bread baking apparatus has generally had a structure as shown in FIG.

That is, there is a bread baking mold 2 in the baking chamber 1, an upper heater 3 on top of the bread baking mold 2, and a lower heater 4 below.
It had a configuration with a divided heater.

In addition, conventional automatic bread making machines, for example,
As shown in Publication No. 3028, it had a configuration as shown in Figure 6.

That is, there was a bread baking mold 8 on the inside of the baking chamber 7 and a heater 9 on the outside, and the entire baking chamber 7 was heated by the heat generated by the heater 9, and this temperature was controlled by the circuit 10 to bake the bread 11. .

Note that 12 is an outer shell, and 13 is a heat insulating material inside the outer shell.

Problems to be Solved by the Invention However, in such a structure, the heater is divided into two parts as shown in the upper heater 3 and lower heater 4 in FIG. Since the upper heater 3 is close to the top surface of the bread 5 and reaches a high temperature, there is a problem that uneven baking occurs on the top surface of the bread 5. Therefore, the upper heater 3 and the lower heater 4 are controlled to be energized separately. However, I had to switch it on by hand. In addition, in order to reduce the occurrence of uneven baking with this structure, it is necessary to bake the bread 5 according to the ambient temperature while avoiding heat radiation as much as possible, and there is also the problem that the volume of the baking chamber 1 must be increased. It was hot.

Further, in the automatic bread maker shown in FIG. 6, since the heater 9 is located outside the baking chamber 7, the rise in temperature of the bread 11 is slow, and baking tends to take a long time, resulting in a thick crust of the bread. Further, even though the outer pan 12 is provided with the heat insulating material 13, there is still a problem that it is hot to the touch due to the heat transmitted from the heater 9, and in this case, there is no heat source on the top surface of the pan 11. There was also a problem that the top surface of the bread 11 turned white due to insufficient baking, resulting in an unbalanced baking color. Furthermore, since the heater 9 is wrapped around the outside of the firing chamber 7 with mica or the like interposed therebetween, assembly variations may occur, and the degree of thermal contact between the firing chamber 7 and the heater 9 may change over long periods of use, resulting in changes in the firing state. It was causing me to do that.

Means for Solving the Problems To solve these problems, the present invention provides a bread pan and a bread pan that houses the bread pan and has side and bottom walls substantially separated from its own side and bottom walls. a firing chamber held so as to be spaced apart from each other;
A frame-shaped bent shape that substantially surrounds the lower side wall of the bread baking mold during the interval, and is inclined so that the side corresponding to one side wall of the bread baking mold is as low as approximately the same level as the bottom of the bread baking mold. This constitutes a bread baking apparatus equipped with heaters arranged in the bread baking apparatus.

Effect The effect of this technical means is as follows.

That is, by arranging a substantial part of the heater for baking the bread in the space between the side of the bread baking mold and the side of the baking chamber, and further providing a low height of the corresponding heater part on one side of the bread baking mold, first, The sides and bottom of the bread are heated by the radiant heat from the heaters located at the above-mentioned intervals to the bread baking mold, the increase in ambient temperature, and the heat conduction from the bread baking mold.In this case, as the height of the inclined heater changes, Since the proximity height of the bread baking mold to the heater and the distance from the heater change depending on its position, the radiant heat distribution is particularly made uniform to achieve bread baking with less unevenness.

In addition, due to the above distance, the top surface of the bread is heated by indirect radiant heat caused by the radiant heat of the heater reaching the top plate, etc. and being reflected, and by the hot air inside heated by the heater, and by the inclination of the heater. By changing the distance of each heater part from the top of the bread, the amount of radiant heat and the temperature rise of the atmosphere are made uniform, making it possible to bake bread with less uneven baking on the top of the bread.

Furthermore, since only one heater is required as the main heat source, the number of parts is small, assembly is easy, and costs are significantly reduced.

Further, by changing the level based on the inclination of the heater, it is possible to supply bread with a good baking balance and less uneven baking without increasing the bottom projected area of the baking chamber, resulting in a space-saving product.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4. In FIGS. 1 and 2, a box-shaped firing chamber 1 with an open upper end is located inside the main body 13.
4 is fixed with screws or the like, and a lid 15 is detachably attached to the upper end of the firing chamber 14 in a top-open manner. In the baking chamber 14, which is closed by a lid 15, a bread baking mold 16 is placed on a bread mold stand 17 so as to be spaced sufficiently from the upper and lower surfaces and the four walls thereof. In this embodiment, the heater 18 is a single sheathed heater bent into a U-shape and placed in a space 19 between three sides of the bread baking mold 16 and three sides of the baking chamber 14. It is installed at an angle so that the power terminal side is higher. A temperature sensing portion 20 is attached to the side wall of the baking chamber 14 on the power supply side, and it comes into contact with the baking mold 16 to sense the temperature, and provides the temperature sensing signal to the heater control circuit 21, thereby controlling the heater 18. The temperature is controlled by controlling the input.

Next, the operation of the present invention will be explained. When baking the bread 22, since the heater 18 is disposed in the space 19 between the side surface of the bread baking mold 16 and the side surface of the baking chamber 14, the bread 22 is baked.
The side and bottom surfaces of the heater 18 emit radiant heat to the bread baking mold 16 and raise the ambient temperature, and the bread baking mold 16
The heater 18 is heated by heat conduction, and the heater 18 is tilted so that the power terminal side is higher than the bread baking pan 16.
The distance relationship between the adjacent part of the heater 18 and the heater 18 is
8, in particular, to make the radiant heat distribution uniform and to achieve baking with less uneven baking. bread 22
The top surface of the bread is the radiant heat of the heater 18 located within the gap 19 between the wall surface of the baking chamber 14 and the baking mold 16, and the indirect radiant heat that is reflected by the lid 15 etc. and reaches the top surface of the bread.
Baking is performed indirectly by raising the atmospheric temperature at the top of the pan 22 based on the flow of hot air passing through the pan. The distance is changed by the inclination, and the closer the heat source of the heater 18 is to the part, the larger the distance is, which equalizes the top surface temperature and reduces uneven baking.
The bread 22 as a whole has a well-balanced burnt color. In addition, since there is only one heater 18, the number of parts is small and assembly is extremely easy, resulting in a significant cost reduction.
Due to the configuration in which the top surface of the heater 18 is indirectly fired,
By increasing the capacity of the
Another feature is that the baking time for the bread 22 can be shortened.

In addition, by slanting the heater 18 as described above, in order to obtain well-balanced bread with less uneven baking, the bottom of the baking chamber 14 is larger than when the baking chamber is simply enlarged to improve heat distribution. There is no need to increase the projected area, and the product can save space.

Further, in the embodiment, since the heater 18 has a high slope on the power terminal side, even if liquid such as water gets on the heater 18, it will not flow toward the power terminal side, making it safe.

Next, an embodiment of an automatic bread maker using the bread baking apparatus of the present invention will be described.

Figure 3 shows an example of an automatic bread maker,
23 is a main body, 24 is a chassis, and a motor 25, a baking chamber 26 adjacent thereto, and a lower part 27 of a bread mold holder fitted in the center of the bottom of the baking chamber are fixed. A small pulley 28 is fixed to the shaft of the motor 25, and is connected to a large pulley 30 via a belt 29.
Power is transmitted to the pulley shaft 31 and further to the connector 32. Inside the firing chamber 26, the lower part of the pedestal 2 is provided.
Fits 7. A bread baking mold 34 is removably supported via a supported bread mold holder 33, and a rotary kneading blade 35 is removably mounted on a blade shaft 36 at the bottom thereof. This blade shaft 36 is connected to the connector upper part 37.
It is pivoted on. Additionally, a heater 3 is provided in the space 38 between the inner surface of the baking chamber 26 and the outer surface of the bread baking mold 34.
9 are placed. This heater 39 is also installed at an angle so that the power terminal side is higher, similar to the embodiments shown in FIGS. 1 and 2. A temperature sensing section 40 fixed to the inner surface of the firing chamber 26 is located above the interval 38 where the heater 39 is not located. This temperature sensing portion 40 is supported elastically and is pressed against the side surface of the baking mold 34.
A lid 42 having a lower surface 41 is provided above the firing chamber 26, and a water container 43 set on the lid 42 has a valve 45 supported by a spring 44 attached thereto. This valve 44 is opened by the operation of a solenoid 46 in the lid 42, and the water in the water container 43 is released from the bottom surface 41 of the lid.
It is designed to enter the bread baking mold 34 through a hole 41a provided in the bread mold 34.

Next, to explain the normal bread baking operation in the apparatus of the present invention, ingredients such as flour, yeast, sugar, salt, etc. are put into the bread baking mold 34, and the panel 47 at the top of the motor 25 housing section of the main body 23 is opened. When operated, the operation of the circuit 48 on the back side first causes
The motor 25 is rotated, and the kneading blades 33 are rotated via the transmission mechanism described above to stir the ingredients, and the solenoid 46 is operated, and the bread baking mold 3 is rotated.
Start supplying water and kneading within 4 hours. When the kneading is completed, the heater 39 is energized to advance the steps of primary fermentation, secondary fermentation, and shaping fermentation. During this fermentation process, the motor 25 is slightly rotated to remove gas. Fermented bread 4 after forming fermentation
When the baking process 9 is finished, a buzzer sounds to notify the finished product, and the automatic process from kneading to baking is completed.

Here, as shown in FIG. 4, the heater 39 in the space 38 between the side surface of the bread baking mold 34 and the side surface of the baking chamber 26 has both sides of its U-shaped pattern sloped so that the power terminal side is higher. As explained in the previous embodiment, the bread 49 can be baked with well-balanced browning and less uneven baking.

Furthermore, by installing the heater 39 at an angle, even if the bottom projected area of the baking chamber 26 is small, it is possible to supply the bread 49 with less uneven baking, thereby saving space for the product. That's right.

Furthermore, since the degree of fermentation of bread dough is greatly affected by temperature, if there is unevenness in temperature, bread with a uniform internal phase cannot be made. Since the temperature is lowered at the sides, the bottom of the bread baking mold 34 is also sufficiently heated, resulting in a uniform temperature distribution on both the bottom and sides, which allows the bread dough to ferment evenly and uniformly, resulting in high-quality bread 49. be.

Effects of the Invention As described above, the present invention provides uniform heat distribution in the bread baking mold by arranging the heater at an angle, and also makes the temperature distribution uniform on the top surface of the bread. It is designed so that it can be fired.

In addition, since the main heat source is a single heater, the number of parts is small, and since the inclined type heater is shorter than a heater that is folded to create height differences, it is easier to assemble, and costs are greatly reduced.

Furthermore, the bottom projected area of the firing chamber can be reduced, resulting in space saving for the product.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a bread baking apparatus according to an embodiment of the present invention, FIG. 2 is a horizontal cross-sectional view thereof, and FIG.
The figure is a vertical longitudinal sectional view of an automatic bread maker using a bread baking apparatus according to another embodiment of the present invention, FIG. 4 is a partial horizontal sectional view thereof, and FIG. 5 is a part of a conventional general bread baking apparatus. The cutaway front view and FIG. 6 are vertical longitudinal cross-sectional views showing an example of a conventional automatic bread maker. 13... Main body, 14... Firing chamber, 15... Lid,
16...Bread baking mold, 17...Bread baking stand, 18
... Heater, 19 ... Interval, 20 ... Temperature sensing section, 21 ... Circuit.

Claims (1)

[Scope of Claims] 1. A bread baking mold, a baking chamber containing the bread baking mold and holding the bread mold with its side walls and bottom walls spaced apart from each other; A frame-like bent shape that substantially surrounds the lower side wall of the bread baking mold during the interval, and is arranged at an angle so that the side corresponding to one side wall of the bread baking mold is lowered to approximately the same level as the bottom of the bread baking mold. 1. A bread baking device characterized by comprising a heater. 2. The bread baking apparatus according to claim 1, wherein the inclined arrangement of the heater makes the power supply terminal side of the heater a high level.