JPH06327565A - Automatic baking oven - Google Patents

Abstract

PURPOSE:To enable even bread having a hard crust to be easily taken out by applying the constitution where a kneading blade driven with a motor laid in the inner bottom section of a baking mold freely detachable from a baking chamber is made to approach the inner bottom section, according to an output signal from a temperature sensor laid in the vicinity of the mold. CONSTITUTION:In a baking mold 3 freely detachable from a baking chamber 1, a kneading blade 6 is rotated via a motor 4, a belt 5 and a connector 7. Temperature is detected with a temperature sensor 8 laid near a baking mold 3. The prescribed quantity of flour and water is supplied to the mold 3 and the motor 4 is started to perform a pre-kneading process. In this case, the blade 6 is energized upward with a spring 14. After the finish of the pre-kneading process, resulting dough is left as it is for the prescribed time. Then, yeast is supplied thereto via a section 10 to perform a post-kneading process. Thereafter, the motor 4 is made to perform cyclic operation for breathing the dough. A baking process is, then, started. After the elapse of the preset time, the blade 6 is pulled down with an electromagnetic coil 15. Then, the dough under the blade 6 is cut and baked. According to this construction, even bread having a hard crust can be easily taken out, when the mold 3 is taken out and kept upside down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bread maker used at home.

[0002]

2. Description of the Related Art A conventional automatic bread machine will be described below.

In FIG. 7, 1 is a baking chamber, 2 is a heater, 3 is a baking pan detachably mounted in the baking chamber 1, 4 is a motor, 5 is a belt for transmitting the power of the motor 4, and 6 is a motor. The kneading blade driven by 4, 7 is a connector for transmitting the rotation of the motor 4 to the kneading blade 6, 8
Is a temperature detector that contacts the outer surface of the baking pan 3 and detects the temperature of the baking pan 3 for process determination and temperature control.
Is a lid, 10 is a yeast charging device, 11 is a control device for controlling all baking, 12 is an operation switch for inputting conditions to the control device 13, and 13 is a display unit for displaying the state of the control device 11.

In the automatic bread machine having such a structure,
In order to prevent the blade from coming into contact with the bottom of the bread baking mold 3 when the bread dough is kneaded and scratching the bottom or making a sound, the conventional mixing blade 6 and the baking bread 3 are There was a gap of a few mm from the bottom.

However, the lower part of the kneading blade 6 and the baking pan 3
If there is a gap of several mm between the bottom of the bread and the dough, the bread dough will enter this gap, and after the bread is baked it will be baked as the outer skin of the bread, making it difficult for the kneading blade 6 to come out of the bread. Since 6 also sticks to the shaft of the bread baking mold 3 and does not come off, it becomes difficult to take out the bread easily even if the bread baking mold 3 is turned upside down.
The above problems become more noticeable in the case of French bread, which has a soft dough, a hard crust when baked, and a light weight when finished.

[0006]

The conventional problem to be solved by the present invention is that the baked bread cannot be easily taken out from the baking pan.

That is, according to the first aspect of the invention, when the bread dough is kneaded or degassed, the bread dough is rotated with a gap of several mm between the lower part of the kneading blade and the bottom of the baking pan, and the baking process is performed. Then, by automatically moving the kneading blade downward so as to reduce the gap between the bottom of the kneading blade and the bottom of the bread baking mold, the bread dough that has entered the bottom of the kneading blade is removed, and when baking it, the bread baking mold is inverted. The purpose is to allow the bread to be easily removed from the baking pan by gently rocking it.

Further, according to the second aspect of the invention, the kneading blade is urged upward by the forward rotation of the motor, and when the motor is stopped, the kneading blade is moved downward by the spring, so that another actuator can be operated. The purpose is to make it easier to remove the bread from the bread baking mold without depending on it.

Further, according to the invention of claim 3, the kneading blade is urged upward by the forward rotation of the motor, and the kneading blade is moved downward by the reverse rotation, so that the kneading blade can be moved downward without depending on other actuators. Its purpose is to ensure that the bread dough at the bottom of the kneading blade is removed so that the bread can be easily removed from the baking pan.

Further, according to the invention of claim 4, when the temperature is low, the kneading blade is urged upward, and when the temperature rises in the firing step, the shape memory alloy urges the kneading blade downward, and another actuator is used. The purpose is to make it possible to easily take out the bread from the baking pan with a simple structure.

A fifth aspect of the present invention has a simple structure in which the baking pan is doubled, and it is an object thereof to make it easier to take out the baked bread from the baking pan without a complicated mechanism.

[0012]

According to a first aspect of the present invention, there is provided a baking chamber having a heater, a baking pan detachably mountable in the baking chamber, and an inner bottom portion of the baking pan. A kneading blade driven by a motor,
In the vicinity of the bread baking mold, a temperature detecting unit for detecting the temperature and a control device for detecting the temperature by the temperature detecting unit to control the baking of the bread are provided. The lower part of the kneading blade is close to the inner bottom of the bread baking mold.

According to a second aspect of the present invention, in the kneading blade, the spring for urging the kneading blade downward when the motor is stopped and the spring for rotating the motor in the forward direction are provided. And a connector for urging the kneading blade upward against the above.

According to a third aspect of the present invention, the kneading blade has a connector that urges the kneading blade upward when the motor rotates in the forward direction and urges it downward when rotating the motor in the opposite direction. To do.

According to a fourth aspect of the invention, the kneading blade has a spring made of a shape memory alloy which is driven downward by a temperature rise.

According to a fifth aspect of the present invention, the bread baking mold has an inner case which is overlapped with the inner wall of the baking mold and has a rotating bottom of the kneading blade which is open.

[0017]

With the above construction, it becomes possible to easily take out the bread from the bread baking mold even after baking the French bread having a hard outer skin.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The overall configuration of the embodiment is shown in FIG.
Since they are the same as those in FIG.

1 (a) and 1 (b) are partially enlarged views in the vicinity of the connector 7, and 14 is a spring for urging the kneading blade 6 upward.
Reference numeral 5 is an electromagnetic coil for attracting the kneading blade 6 downward.

FIG. 2 is a process diagram of bread making according to the embodiment of the present invention. When the operation switch 12 is operated to start cooking, the motor 4 rotates to start kneading. At this time, the kneading blade 6 is urged upward by the spring 14 in FIG. 1, and there is a gap of about 3 mm between the kneading blade 6 and the inner bottom portion of the baking pan 3, and the kneading blade 6 and the inner bottom portion of the baking pan 3 are separated from each other. Does not rub.

After the pre-kneading, the dough is left to stand for a certain period of time, and yeast is then charged from the yeast charging device 10.
Perform kneading.

When the kneading step is completed, the fermentation step is started. During the fermentation step, degassing is performed twice by operating the motor 4 for a short period of time, and the post-firing step of the molding fermentation is started.

In the first embodiment shown in FIG. 1, the electromagnetic coil 15 is actuated after a lapse of a certain time after entering the firing step, and the kneading blade 6 is moved downward as shown in FIG. Cut the dough on the bottom.

After the bread dough under the kneading blade 6 is cut, even if the suction of the electromagnetic coil 15 is released and the kneading blade 6 is returned to the original position, the bread dough is baked while being cut.

When the baking process is completed and the bread is baked,
When the bread baking mold 3 is taken out of the main body, turned upside down, and gently rocked, the bread dough under the kneading blade 6 is cut, so that the baked bread can be easily separated from the baking bread mold 3 and taken out.

FIG. 3 shows a second embodiment of the invention of claim 2, 16 is a spring for urging the kneading blade 6 downward, and the connector 7 is a kneading blade 6 by the forward rotation of the motor 4.
The inclined portion 17 is provided so as to bias the above.

With this structure, when the motor 4 is rotated in the forward direction in the kneading step and degassing shown in FIG.
By biasing the kneading blade 6 upward by 7, a gap is created between the kneading blade 6 and the inner bottom portion of the bread baking mold 3 as shown in FIG. There is no rubbing against.

When the rotation of the motor 4 is stopped, the kneading blade 6 is moved downward by the spring 16, and the gap between the kneading blade 6 and the inner bottom portion of the bread baking mold 3 disappears as shown in FIG. 3 (b). When the baking process is started in this state and the bread is baked, a hard outer coat is not formed under the kneading blades 6,
The bread can be easily taken out by turning the bread baking mold 3 upside down and gently rocking it.

FIG. 4 shows a third embodiment of the invention of claim 3, wherein the connector 7 has an inclined portion A18 for urging the kneading blade 6 upward by the forward rotation of the motor 4, and the motor 4 having the inclined portion A18. An inclined portion B19 is provided so as to bias the kneading blade 6 downward by the reverse rotation.

With this structure, in the kneading step and degassing of FIG. 2, when the motor 4 is rotated in the forward direction, the kneading blade 6 is urged upward by the inclined portion A18 as shown in FIG. 6 does not rub against the inner bottom of the baking pan 3.

After the final degassing, the motor 4
When it is rotated in the reverse direction for about 0.05 seconds, the mixing blade 6 moves downward due to the inclined portion B19, and the gap between the mixing blade 6 and the inner bottom portion of the bread baking mold 3 becomes small as shown in FIG. 4 (b). Disappear.

In this state, the molding and fermentation process is followed by the firing process,
When the bread is baked, a hard crust is not formed under the kneading blade 6 as in the above, and the bread can be easily taken out from the baking pan.

FIG. 5 shows a fourth embodiment of the invention of claim 4, 20 is a spring for urging the kneading blade 6 upward, and 21 is the spring 20 for moving the kneading blade 6 by the temperature rise. It is a shape memory alloy that urges downwards.

With this structure, when the temperature of the baking pan 3 from the kneading step to the forming and fermentation step of FIG. 2 is as low as 40 ° C. or lower, the kneading blade 6 is urged upward by the spring 20 as shown in FIG. 5a. Therefore, the kneading blade 6 and the inner bottom portion of the baking pan 3 do not rub against each other.

Entering the baking process, the temperature of the baking pan 3 is 40
When the temperature exceeds ℃, the shape-memory alloy 21 urges the kneading blade 6 downward against the spring 20, so that the kneading blade 6 moves downward, and as shown in FIG. There is no gap between the inner bottom of 3 and the inner bottom.

When the bread is baked in this state, a hard skin cannot be formed under the kneading blade 6 as in the above, and the bread can be easily taken out from the baking pan.

FIG. 6 shows a fifth embodiment of the invention according to claim 5, and 22 is an inner case which overlaps with the inner wall of the baking pan 3 and in which the rotating bottom of the kneading blade 6 is opened.
3 is a handle.

With this structure, even if there is a gap between the kneading blades 6 and the inner bottom of the baking pan 3, when the bread is baked, the baking pan 3 is taken out and the handle 23 of the inner case 22 is removed from the baking pan 3. And take out the bread,
The baked bread can be easily separated from the baking pan 3 and taken out easily.

[0040]

As is apparent from the above description, according to the present invention, a French bread or the like having a soft dough, a hard outer skin when baked, and a light weight can be easily taken out from the baking pan, and it is completed. It is intended to provide an easy-to-use automatic bread maker that allows easy removal of bread.

[Brief description of drawings]

FIG. 1A is a side sectional view of an essential part of an automatic bread maker according to a first embodiment of the present invention, and FIG. 1B is a side sectional view of the other state.

FIG. 2 is a process chart of an embodiment of the present invention.

FIG. 3A is a side sectional view of an essential part of an automatic bread maker according to a second embodiment of the present invention, and FIG. 3B is a side sectional view of the other state.

FIG. 4A is a side sectional view of an essential part of an automatic bread maker according to a third embodiment of the present invention, and FIG. 4B is a side sectional view of the other state.

FIG. 5A is a side sectional view of an essential part of an automatic bread maker according to a fourth embodiment of the present invention, and FIG. 5B is a side sectional view of the other state.

FIG. 6 is a side sectional view of an essential part of an automatic bread maker according to a fifth embodiment of the present invention.

FIG. 7 is a side sectional view of a conventional automatic bread maker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Baking chamber 2 Heater 3 Baking type 4 Motor 6 Mixing blade 7 Connector 8 Temperature detection part 11 Control device 14, 16, 20 Spring 15 Electromagnetic coil 17 Inclined part 18 Inclined part A 19 Inclined part B 21 Shape memory alloy 22 Inner case

Claims (5)

[Claims] 1. A baking chamber having a heater, a bread baking mold detachably mountable in the baking chamber, a kneading blade provided on an inner bottom portion of the baking mold and driven by a motor, and the vicinity of the baking mold. In the above, a temperature detection unit for detecting the temperature and a control device for detecting the temperature by the temperature detection unit and controlling the baking of the bread are provided, and the kneading blade of the kneading blade of the kneading blade after entering the baking step of the bread. An automatic bread machine whose lower part is close to the inner bottom of the bread baking mold. 2. The kneading blade has a spring for urging the kneading blade downward when the motor is stopped, and by rotating the motor in the forward direction, the kneading blade resists the spring and the The automatic bread maker according to claim 1, further comprising a connector for urging the kneading blade upward. 3. The automatic bread maker according to claim 1, wherein the kneading blade has a connector that urges the kneading blade upward when the motor is rotated in the forward direction and downward when the motor is rotated in the opposite direction. . 4. The automatic bread-making machine according to claim 1, wherein the kneading blade has a spring made of a shape memory alloy which is driven downward by an increase in temperature. 5. The automatic bread maker according to claim 1, wherein the bread baking mold has an inner case which overlaps an inner wall of the bread baking mold and in which a rotating bottom portion of the kneading blade is opened.