JPH0233729Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a bread kneader for kneading bread ingredients by placing them in an ingredient container at home, for example.

To bake bread, you first need to put the ingredients, such as flour, yeast, a small amount of butter, and sugar, into a kneader with water and knead them. Kneading the bread ingredients greatly affects the quality of the finished bread, and unless you knead it properly, you will not be able to get delicious bread. When the bread ingredients are kneaded, the temperature rises, and it is said that the temperature is optimal when it reaches around 27 degrees Celsius.At that time, gluten forms in the bread dough, resulting in a glossy dough. In order to make such bread dough, controlling the kneading of the ingredients only by time will not result in a constant kneading condition depending on the temperature, which will not necessarily result in a good dough, and it will not be possible to obtain consistently high quality bread. Can not.

It is difficult to measure the dough temperature by directly inserting a temperature sensor into the dough that is being kneaded, and it is cumbersome to temporarily stop kneading and measure the temperature of the dough one by one. On the other hand, it is conceivable to measure the temperature of the material container to determine the dough temperature, but since the temperature of the material container is determined by the temperature of the dough inside and the air temperature, it is not possible to accurately measure the temperature of the dough.

The purpose of this invention is to provide a bread kneader that can accurately detect the temperature of the dough being kneaded and that can bake high quality bread.

According to this invention, a rotating shaft is inserted into the material container, a first kneading element is attached to the inner end of the rotating shaft, and the first kneading element is adjacent to the rotating circle of the first kneading element and extends in the radial direction of the rotating circle. A second kneading element is removably fixedly provided within the material container, and a temperature detection element is provided inside either of the first or second kneading elements.

The application of this invention to an automatic bread maker will be explained below with reference to the drawings. An opening/closing lid 12 is provided in one half of the upper part of the housing 11 of the bread making machine, and a material container 13 that can be removed when the lid is opened is housed in the housing 11 under the opening/closing lid 12. A water tank 14 is provided in the case 11 adjacent to the material container 13, and a lid 15 is attached to the upper side of the water tank 14 so as to be openable and closable. The peripheral wall of the water tank 14 is a heat insulating layer 1
6, so that it is not easily affected by the ambient temperature. In addition, an ice case 17 can be freely taken out in the water tank 14.
are arranged so that ice 18 can be placed in the ice case 17. Heat dissipation fins 19 are formed on the outer circumferential surface of the ice case 17 as necessary, and water is poured into the water tank between the outer circumferential surface of the ice case 17 and the inner circumferential surface of the water tank 14, and the ice case 17 By putting ice 18 inside, the water in the water tank 14 can be maintained at a constant temperature, for example, about 5°C.

The water controlled at a constant temperature in the water tank 14 is pumped through a pipe 22 by a pump 21 to the material container 1.
3 can be supplied into the material container 13 through the hole 23 formed in the upper lid 13a of the material container 13. The size of the small hole 23 is the same as that of the material container 13.
The diameter of the container 13 is approximately 2 to 4 mm so that the steam generated inside the container 13 can be appropriately released and the inside of the container 13 can be maintained at a substantially constant humidity suitable for bread making.

As shown in FIG. 2, a board 24 is installed horizontally within the box 11 relatively close to the bottom plate 11a of the box 11 of the bread making machine, and a disk-shaped fixture 2 is mounted on the board 24.
5 is fixed. On the other hand, a mounting base 26 is fixed to the bottom plate of the material container 13, and a collar 26a of the mounting base 26
The material container 13 is fixed in the vertical direction by being rotated and hooked on the engaging protrusion 27 that protrudes in the lateral direction of the fixture 25. When removing the material container 13, the material container 13 is rotated to connect the protrusion 27 and the collar 26a. Disengage from the Brim 26
Although not shown in the figure, a cutout for disengaging the protrusion 27 is formed in a.

A rotating shaft 28 is inserted into the material container 13 . That is, in this example, a through hole is formed in the center of the fixture 25, a bearing 29 is attached to the inner peripheral surface of this through hole, and the rotating shaft 28 is inserted into the bearing 29 so as to be rotatable. In addition, the bottom plate 13b of the material container 13 and the mounting base 2
A through-hole is formed approximately in the center of 6, and the rotating shaft 28 can be positioned inside the material container 13 by passing through these through-holes. In this material container 13, the first kneading element 31 is connected to the rotating shaft 28.
mounted on. One end 31a of the first kneading element 31 is configured in a cap shape, and the inner end of the rotating shaft 28 is vertically and detachably inserted into the cap-shaped portion 31a. A detent key 33 is formed in the vertical groove 32.
are formed protrudingly on the inner circumferential surface of the cap portion 31a, and this cap-shaped portion 31a can be placed over the shaft 28 from the upper end of the rotating shaft 28, and are engaged with each other in the rotating direction, so that the rotating shaft 28 The first kneading element 31, which is perpendicular to the first kneading element 31, rotates when the rotating shaft 28 rotates.

A second kneading element 34 is provided adjacent to the rotational circle of the first kneading element 31 and extending in the radial direction of the rotational circle. For example, as shown in this figure, the rotating shaft 28 has a cylindrical shape, and the fixed shaft 35 is inserted into the rotating shaft 28. The lower end of the fixed shaft 35 is connected to the bottom plate 1 of the case 11.
1a, and the upper end of the fixed shaft 35 is connected to the rotating shaft 2.
8. Furthermore, the cap-shaped portion 31a of the first kneading element 31
The second kneading element 34 is protruded through the material container 13 into the material container 13, and one end of the second kneading element 34 is fixed onto the protruding end thereof.
Bearings 36 and 36' are interposed between the inner peripheral surface of the upper and lower ends of the rotating shaft 28 and the outer peripheral surface of the fixed shaft 35. Upper bearing 36 and first kneading element 3
The fixed shaft 3
5 and the rotating shaft 28 is a ring-shaped seal 37. One end of the second kneading element 34 is also a cap-shaped portion 34a, into which the inner end of the fixed shaft 35 is inserted. In this case as well, an axial key groove 38 is formed on the outer circumferential surface of the fixed shaft 35, and a key 39 formed on the inner circumferential surface of the cap-shaped portion 34a is inserted into and engaged with this key groove 38.
The kneading element 34 is fixed in the direction of rotation.
Further, one end of a fixing spring 41 is fixed within the cap-shaped portion 34a, and the other end of the spring 41 is engaged and pressed into a recess 42 of the fixed shaft 35 on the opposite side of the key groove 38. Therefore, the second kneading element 34 can be removed by pulling the cap-shaped part 34a slightly upward in the vertical direction to disengage the spring 41 and the recessed part 42, but in the direction of rotation, the key groove 38 and key 39, so that it does not rotate, and the second kneading element 34 extends perpendicularly to the fixed shaft 35, and when receiving an upward force at its free end, it forms a cap-like shape. The peripheral surfaces of the portion 34a and the fixed shaft 35 are strongly pressed against each other, making it difficult for the cap-shaped portion 34a to come off.

The rotating shaft 2 is located between the bottom plate 11a and the substrate 24.
A pulley 43 is fixed on 8. On the other hand, as shown in FIG. 1, a motor 44 is held on the substrate 24 via vibration isolating means 45 below the water tank 14 in the case 11. A pulley 47 is attached to the rotating shaft 46 of the motor 44.
is installed. Also, the shaft 4 erected on the bottom plate 11a
A pulley 49 is attached on top of the pulley 47, 4.
A belt 51 is placed between the rotating shafts 46 and 9, and the rotation of the rotating shaft 46 is decelerated by the pulleys 47, 49 and the belt 51 and transmitted to the rotating shaft 48. The rotation of the shaft 48 is transmitted to the pulley 43 through the belt 53 in a reduced bundle.

In this invention, a temperature detection element is provided within the kneading element to detect the temperature of the material while the material is being kneaded. In this example, as shown in FIG. 2, a center hole 54 is formed in the fixed shaft 35, and the inner end of the center hole 54 is located near the inner end of the fixed shaft 35, that is, near the cap-shaped portion 31a. death,
A temperature-sensitive resistance element 55 is placed at that position as a temperature detection element.
is inserted, and the lead wire 56 of the temperature-sensitive resistance element 55 is led out from the lower end of the fixed shaft 35. That is, in this example, the temperature-sensitive resistance element 55 is provided within the base of the first kneading element 31.

As shown in FIG. 1, on the outer periphery of the material container 13,
A heater 57 is provided to heat the material in the material container 13 and bake bread. Box 1
The panel board 58 of No. 1 has a power switch 59, a bread completion time setting button 61, and its display section 6.
2. A time setting switch 63, its display section 64, etc. are provided. Further, in order to control the temperature during heating by the heater 57, a temperature sensitive resistance element 65 is provided near the outer periphery of the material container 13.

To automatically bake bread in this configuration, use lid 1.
4, then remove the top lid 13a of the container, put a predetermined amount of ingredients such as flour, yeast, butter, sugar, etc. into the material container 13, close the lids 13a and 12, and put a predetermined amount of water into the water tank 14. At the same time, all you have to do is put ice 18 into the ice case 17, set the bread completion time, and turn on the power. About 4 hours before the set bread completion time, pump 2
1 is activated, water in the water tank 14 is supplied into the material container 13, the motor 44 is driven, and the first kneading element 31 is therefore rotated, for example every minute.
It is said to be around 200 times. This rotation kneads the material in the container 13, but at the same time the second kneading element 3
Since the material is entangled with the first kneading element 4 and the material is kneaded together between this and the first kneading element 31, the material can be sufficiently kneaded even at a relatively slow rotational speed. While the material is being kneaded in this way, the temperature of the material rises, but this temperature is sensed by the temperature-sensitive resistance element 55, and when this reaches a predetermined temperature, for example 27°C, the kneading process is stopped. It shall be the end. At this time, as mentioned earlier, the temperature of the water supplied is constant, for example, 5℃, and the dough is always kneaded under constant conditions, kneaded well, and has a glossy baked dough. It can be completed without being affected by external temperature. When this kneading process is completed, primary fermentation gas venting, secondary fermentation gas venting, molding fermentation, etc. are automatically performed by the control unit (not shown in the figure), and then the heater 57 is energized and the material container 13
The inside is heated, the ingredients inside are baked, and the bread is baked by heating for a predetermined period of time.

As shown in FIG. 3, a hole 71 is formed in the lower part of the peripheral wall of the material container 13, and the second kneading element 34 may be detachably protruded into the material container 13 and attached through the hole 71. That is, pass the flanged nut 72 over the second kneading element 34 and tighten the nut 72 onto the screw 73 installed in the hole 71 to remove the second kneading element 34.
can be installed. Further, in this example, a hole is formed from the outer end of the second kneading element 34, and a temperature-sensitive resistance element 55 is inserted into the hole. As shown in the figure, the second kneading element 34 of the first kneading element 31
A protrusion 74 may be formed on the side. As shown in FIG. 4, a temperature-sensitive resistance element 55 may be attached within the inner end of the second kneading element 55 in the configuration of FIG.

As described above, according to the bread kneader of this invention, since the temperature-sensitive resistance element, that is, the temperature detection element is arranged inside the kneading element 31 or 34, it is not affected by the external temperature (air temperature). It is possible to accurately detect the temperature of the dough being kneaded.
It is possible to consistently bake high quality bread.

Furthermore, the user may accidentally forget to add water,
If the kneading temperature does not rise due to a defect in the flour or yeast, the kneading operation will automatically stop after 30 minutes of kneading time, for example, and in the case of the automatic bread maker, the bread making operation will be stopped midway, and an alarm or You can also display it. Generally, the kneading time for bread dough to reach a kneading temperature of about 27°C is about 10 to 16 minutes.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of the box showing an example of the bread kneader of this invention applied to an automatic bread maker; Fig. 2 is a sectional view of the material container portion of Fig. 1; FIG. 3 is a sectional view showing another example of this invention, and FIG. 4 is a perspective view showing still another example of this invention. 13: Material container, 28: Rotating shaft, 31: First kneading element, 34: Second kneading element, 55: Temperature-sensitive resistance element as a temperature detection element.

Claims (1)

[Scope of utility model registration request] In a bread kneader for putting bread ingredients into an ingredient container and kneading the ingredients, a rotating shaft is inserted into the ingredient container, a first kneading element is attached to the inner end of the rotating shaft, and the first kneading element A second kneading element that is adjacent to the rotational circle and extends in the radial direction of the rotational circle is removably fixedly provided in the material container, and a temperature is set inside either of the first or second kneading element. A bread kneader equipped with a detection element.