JPH0444720A - Bread baking machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a bread making machine that can produce freshly baked bread simply by adding predetermined bread ingredients.

BACKGROUND OF THE INVENTION Conventional bread making machines of this type generally have a configuration as shown in FIG. The configuration will be described below with reference to the drawings.

In Fig. 5, 1 is the chassis, 2 is the top of the main body, 3 is the bottom of the main body, 4 is the firing chamber, and 5 is the motor. A removable bread container 7 equipped with blades 6, a heater 8, and a temperature detection section 9 for detecting the temperature of the bread container 7 are provided. Reference numeral 10 denotes a lid for opening and closing the upper end opening of the firing chamber 4, and is provided with a glass window 11 and a plurality of ventilation holes 12. 13 is a fan motor for discharging the hot air inside the firing chamber 4 to the outside through the exhaust duct 15 from the ventilation hole 14 on the side surface of the firing chamber 4;
Reference numeral 6 denotes a control device that controls energization of the motor 5, heater 8, etc. based on temperature information detected by the temperature detection section 9.

Problems to be Solved by the Invention In the above-mentioned conventional bread making machine, since the glass window 11 is provided in the lid 10, it is possible to see the bread being made inside the baking chamber 4 through the glass window 11. Even after the fermentation of the material is completed and the firing begins and the heater 8 is fully energized and becomes red hot, the heat inside the firing chamber 4 is conducted and radiated to the outside through the glass window 11, and the heat is transferred from the red hot heater 8 to the outside. The radiated heat rays including infrared rays and visible rays are not reflected on the inner surface of the lid 10, and the radiant heat is absorbed and radiated to the outside through the glass window 11. Therefore, the temperature of the upper atmosphere in the firing chamber 4 is low, and
The problem was that the heat rays emitted from the top of the bread were weak, resulting in the top of the bread not being baked properly and the color being pale.

In addition, in high temperatures such as summer, if the kneading time of bread ingredients is extended, the motor 5
Coupled with the heat generated by the dough, the temperature of the bread dough rises, and conversely, if you shorten the kneading time to prevent the temperature of the dough from getting too high, the kneading will be insufficient, resulting in poor bread quality either way. there were. Therefore, in order to prevent the temperature of the dough from becoming too high, widening the opening area of the ventilation hole 12 in the lid 10 that communicates the inside of the baking chamber 4 with the outside air will prevent the temperature of the dough from rising and allow sufficient kneading. As the shielding effect of 10 is reduced, the bread dough becomes dry during fermentation, and during baking, the hot air inside the baking chamber 4 escapes to the outside through the ventilation holes 12, causing other problems such as the baked color on the top of the bread becoming pale and dull. was occurring.

Therefore, in order to improve the quality of bread at high temperatures, it is necessary to improve heat dissipation and cooling only during kneading, and to prevent too much heat from escaping during times other than kneading. When the temperature of the dough rises during kneading, the fan motor 13 is used to exhaust the hot air in the baking chamber 4 to the outside through the ventilation hole 14 and the exhaust duct 15 to raise the temperature of the dough. There was an issue of cost.

The present invention solves these problems by installing a glass window in the lid that allows you to see how the bread is being made in the baking chamber.
The primary objective is to improve the quality of bread by preventing the heat inside the baking chamber from escaping to the outside through the glass window during baking, while maintaining ease of use and high product quality.

The second objective is to improve the heat dissipation and cooling of bread dough during kneading at a low cost, so that the dough can be sufficiently kneaded while preventing the temperature of the dough from rising even at high temperatures. The aim is to prevent too much from escaping and improve the quality of the bread.

The third purpose is to open and close the glass window and the ventilation hole with the same parts, simplifying the structure and reducing the number of parts, reducing assembly man-hours and reducing costs, while improving the quality of bread. It is in.

Means for Solving the Problems In order to achieve the above-mentioned first object, the present invention provides a lid which is rotatably supported on the upper part of the main body and which opens and closes the baking chamber, so that the baking process inside the baking chamber can be observed. A shape memory alloy is used to open and close the glass window directly or indirectly at a predetermined temperature.

In addition, in order to achieve the second object, the present invention provides ventilation holes in the firing chamber or the lid to allow hot air inside the firing chamber to escape to the outside and prevent a rise in temperature inside the firing chamber, and also to maintain a predetermined temperature using a shape memory alloy. The ventilation hole is opened and closed directly or indirectly.

In addition, in order to achieve the third object, the present invention includes a glass window in the lid that allows you to see how the bread is being made inside the baking chamber, and a hole in the baking chamber or the lid that allows hot air inside the baking chamber to escape to the outside. In addition to arranging air holes, the glass window and the ventilation hole are opened and closed directly or indirectly with the same part using a shape memory alloy.

Function The present invention has the above-described configuration, so that until before baking when the temperature inside the baking chamber is low, it is possible to see the progress of the bread being made inside the baking chamber through the glass window provided in the lid, and also when the baking process starts. When the temperature inside the firing chamber rises and the shape memory alloy reaches a predetermined temperature, the shape memory alloy deforms and closes the glass window, which prevents heat and hot rays inside the firing chamber from escaping to the outside through the glass window. It is possible. Furthermore, when the temperature inside the firing chamber drops, the shape memory alloy automatically returns to its original shape and the glass window opens again.

In addition, in the present invention, by opening and closing the heat dissipation vents provided in the baking chamber or the lid using a shape memory alloy, the vents are fully open during kneading, and the heat dissipation inside the baking chamber is good. In addition, when the kneading is finished and the temperature in the firing chamber becomes high and the shape memory alloy reaches a predetermined temperature, the shape memory alloy deforms and opens the ventilation holes. When closed, the shielding effect of the lid is improved, and the bread dough is prevented from drying out during fermentation and the hot air inside the baking chamber is prevented from escaping to the outside during baking.

Furthermore, the present invention simplifies the structure and reduces the number of parts by directly or indirectly opening and closing the glass window and the ventilation hole with the same component, thereby reducing assembly man-hours and reducing costs. However, the quality of the bread can be improved in the same manner as above.

EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings. In Figs. 1 to 3, numeral 20 denotes a palm, and the lower part 2 of the main body is attached to the outer palm and is made of sheet metal.
1, and an upper body 22 which is attached to the upper part of this lower body 21 and is made of resin.A motor 23 and a firing chamber 24 are attached to the baking sheet 20. motor 2
3 is transmitted from the small pulley 25 to the large pulley 27 and the lower connector 28 via the heald 26. Further, inside the baking chamber 24, there is provided a kneading blade 30 which is rotated via an upper connector 29 that contacts a lower connector 28, a removable bread container 31 in which bread ingredients are set, and a roughly U-shaped bread container 31. A heater 32 formed in the bread container 31 and a temperature detection section 33 for detecting the temperature of the bread container 31 are provided. Reference numeral 34 denotes an outer lid that is rotatably supported on the main body 22 and opens and closes the firing chamber 24, and includes a glass window 35 through which the inside of the firing chamber 24 can be seen, a window frame 36 that holds the glass window 35, and a lid that opens and closes the firing chamber 24. room 2
4, a plurality of ventilation holes 37 for communicating the inside with outside air to release the heat inside, and an inner lid 38 that comes into contact with the upper end of the firing chamber 24 and shields the firing chamber 24. 39 is a lath mesh that is spot welded to the inner lid 38 to communicate the inside and outside of the firing chamber 24 while preventing foreign matter such as cockroaches from entering; 40 is a glass window 35;
an opening/closing plate which opens and closes the lath net 39 and is slidably attached to the inner lid 38; 41 is a through hole formed in the inner lid 38 through which the opening/closing plate 40 is inserted and taken out; 42 is formed in the shape of a coil spring; It is a shape memory alloy that is attached to the opening/closing plate 40 at the other end of the inner lid 38, and the deformation temperature is set so that it will expand when fermentation begins after kneading and further expand when fermentation ends and firing begins. The glass window 35, the lath net 39, and the opening/closing plate 40 are arranged so that as the shape memory alloy 42 expands, the opening/closing plate 40 becomes the lath net 39. The glass windows 35 are arranged in a positional relationship such that they are closed in order. However, if a certain amount of steam is not released during baking, the bread will become damp, so the lath net 39 is left partially open and care is taken to ensure that it is not completely closed.
Both have larger opening areas than conventional ones. 43 is a heat shield plate disposed around the outer periphery of the firing chamber 24, and 44 is a heat shield plate 2 on the main body.
2 and a fixed frame for fixing the firing chamber 24, and 45 is a capacitor for driving the motor 23. 46 is the temperature detection section 33
A control device 47 has a built-in control device 46, and controls energization of the motor 23, heater 32, etc. based on temperature information detected by the controller, and controls each process of cross-wiring, wakashi 1 fermentation, and baking. This is an operation member attached to the upper part of the main body 22 adjacent to the side of the machine, and is used to set the menu and baking time, start cooking, etc.

According to the above configuration, during kneading when the temperature inside the firing chamber 24 is low, the shape memory alloy 42 is the shortest, and the glass window 35 and the lath screen 3
Since the opening/closing plate 40 is drawn toward the shape memory alloy 42 side so that the baking tray 9 is fully opened, the opening/closing plate 40 can be seen through the glass window 35 to see how the bread is being made inside the baking chamber 24, making it convenient to use. The opening area of the ventilation holes 37 is larger than before, and the heat dissipation inside the baking chamber 24 is improved even at high temperatures such as summer, so it is possible to perform sufficient kneading while preventing the temperature of the Nokun dough from rising. It can improve the quality of bread.

Further, when the kneading is finished and the temperature in the firing chamber 24 rises to the fermentation temperature, the shape memory alloy 42 expands a little and pushes the opening/closing plate 40 away, closing only the lath net 39. It is possible to improve the shielding effect even with the inner lid 38 having a lath mesh 39 with a large opening area, while allowing you to see how the bread is being made. It can prevent the color from becoming blurry and improve the quality of bread.

In addition, after the fermentation is completed, the firing process begins, and the shape memory alloy 4
When the firing chamber 2 reaches a predetermined temperature, it further expands and pushes the opening/closing plate 40 to completely close the glass window 35. This prevents the heat in the firing chamber 24 from being conducted and radiated outside through the glass window 35. The heat rays radiated from the red-hot heater 32 are reflected into the baking chamber 24, and the radiant heat can be prevented from being radiated to the outside through the glass window 35, so that the bread can be sufficiently baked to darken the baked color. I can do it. Of course, in order to prevent the temperature of the dough from rising during kneading,
Even if the opening areas of the firing chamber 9 and the ventilation hole 37 are made large, since they are closed by the opening/closing plate 40, it is possible to prevent hot air from the firing chamber 24 from escaping too much to the outside. Furthermore, the glass window 35 is thermally insulated by the opening/closing plate 40 and the surface temperature is lowered, thereby preventing dangers such as fire and burns and improving safety.

Furthermore, after baking the bread, when the heat in the baking chamber 24 is radiated and the temperature of the shape memory alloy 42 drops below a predetermined temperature, the shape memory alloy 42 naturally shrinks and automatically returns to its original shape, saving you time and effort. It doesn't cost. Further, in this embodiment, the glass window 3
5 and the same lath net 39 with the same opening/closing plate 40 and shape memory alloy 42
Since the device opens and closes with a single button, the structure can be simplified, reducing the number of parts, reducing assembly man-hours, and lowering costs.

FIG. 4 shows another embodiment, in which the glass window 48 and the lath mesh 49 are opened and closed by separate opening/closing plates 5051 and shape memory alloys 52 and 53, which increases the number of parts and increases the cost. This increases the degree of freedom, makes it easier to match the optimum conditions, and improves the accuracy of operability. Further, the shape memory alloy may be formed from a plurality of materials, and the ventilation hole, the opening/closing plate, and the shape memory alloy may be arranged on the wall surface of the firing chamber.

Effects of the Invention As is clear from the description of the embodiments above, the bread making machine of the present invention can automatically close the glass window only during baking, so the bread in the baking chamber can be passed through the glass window until fermentation. This improves the quality of bread by preventing the heat inside the baking chamber from escaping to the outside through the glass window during baking, while maintaining user-friendliness and high product quality by allowing you to see how the bread is being baked. By lowering the surface temperature of the material, it is possible to prevent dangers such as fire and burns, and improve safety.

In addition, the opening area of the ventilation hole that communicates the firing chamber with the outside air is
It automatically increases in size during kneading and decreases in size after fermentation, so you can prevent the temperature of the dough from rising and knead it sufficiently even in the high temperatures of summer, even without a cooling fan motor. It can also prevent drying and improve the quality of bread at low cost.

Furthermore, by opening and closing the glass windows and ventilation holes with the same opening/closing plate and shape memory alloy, it is possible to simplify the structure and reduce the number of parts, reducing assembly man-hours and costs. This is something that can improve your workmanship.

[Brief explanation of the drawing]

Fig. 1 is a front cross-sectional view of a bread making machine showing an embodiment of the present invention, Fig. 2 is a partial detailed cross-sectional view of the lid, Fig. 3 is a perspective view of the main body, and Fig. 4 is another one. FIG. 5 is a partially detailed cross-sectional view of a lid portion of a bread-making machine showing an embodiment, and FIG. 5 is a front cross-sectional view of a conventional bread-making machine. 21...Bottom body, 22...Top body, 2
4... Baking chamber, 32... Heater, 34
...Outer lid, 35...Glass window, 37.
...Vent hole, 38...Inner cover, 39...
...Lass net, 40...Opening/closing plate, 42...
...Shape memory alloy, 46...Control device. Name of agent: Patent attorney Shigetaka Awano and 1 other person & 3 false accusations; Fig. 2 - bottom of main body

Claims (3)

[Claims] (1) A main body that includes a removable bread container, a heater, a baking chamber equipped with a temperature detection section, and a motor for kneading, and energization of the heater, motor, etc. based on the temperature information detected by the temperature detection section. and a lid rotatably supported on the upper part of the main body to open and close the baking chamber, and the lid is provided with a glass window through which the baking process inside the baking chamber can be seen. In addition, a bread making machine in which the glass window is opened and closed directly or indirectly using a shape memory alloy. (2) A main body that includes a removable bread container, a heater, a baking chamber equipped with a temperature detection section, and a motor for kneading, and energization of the heater, motor, etc. based on the temperature information detected by the temperature detection section. and a lid rotatably supported on the upper part of the main body to open and close the firing chamber, and a vent hole is provided in the firing chamber or the lid to allow hot air inside the firing chamber to escape to the outside, A bread making machine in which the vent hole is opened and closed directly or indirectly using a shape memory alloy. (3) A main body that includes a removable bread container, a heater, a baking chamber equipped with a temperature detection section, and a motor for kneading, and energization of the heater, motor, etc. based on the temperature information detected by the temperature detection section. and a lid rotatably supported on the upper part of the main body to open and close the baking chamber, and a glass window on the lid that allows you to see how the bread is being made inside the baking chamber. A bread making machine in which a ventilation hole is provided in the baking chamber or the lid to allow hot air inside the baking chamber to escape to the outside, and the glass window and the ventilation hole are opened and closed directly or indirectly with the same part using a shape memory alloy.