JPH1189728A - Device for making bread - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely assemble each blade for mixing to the same direction no matter how the blades for mixing are assembled to an axis of rotation of a bread case in a device for making bread with a plurality of blades for mixing. SOLUTION: To a coupling device for engaging an axis of rotation 10 of a bread case to a driving axis 15 of an oven chamber, a means for normally engaging the axis of rotation 10 to the driving axis 17 at a fixed condition. The coupling device is comprised with a first engaging member 13 of the axis of rotation side, and a second engaging member 17 of the driving axis side. More than two claw sections 31 that are disposed at opposite positions where distances from a center section are different are formed on the first engaging member 13. More than two claw sections 31 that are engaging to either one of the claw sections 29 of the engaging member 13 are formed on the second engaging member 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bread maker capable of automatically making bread simply by putting in bread ingredients, and more particularly to a bread maker having a rectangular parallelepiped bread case having a plurality of kneading blades. It is.

[0002]

2. Description of the Related Art In recent years, there has been a demand for a bread maker of this type to make the shape of bread to be baked horizontally long, similar to the shape of a general bread. Has been proposed.
Such a rectangular parallelepiped pan case often has two or more kneading blades because a single kneading blade performing a circular motion does not perform a sufficient kneading action.

FIG. 6 is an explanatory view showing a drive system in a conventional bread maker. Reference numerals 40 and 41 denote drive shafts projecting from the bottom of the oven chamber and provided with a rotational force by a motor. Pulleys 44 and 45 are provided at the lower end, respectively. The pulleys 44 and 45 are linked by a V-belt 46. Reference numerals 47 and 48 denote rotating shafts projecting from the bottom of the pan case.
9 and 50, and kneading blades 51 and 52 are provided at the upper end, respectively. Each coupling 42, 43, 49, 50 is formed with two cut-and-raised claw portions 53, and each claw portion 5 is rotated while the drive shafts 40, 41 rotate 180 °.
3 are engaged, and the rotating shafts 47 and 48 are driven.
In addition, the shape of the kneading blade used here is often left and right asymmetric in which one thin wing portion is arranged in consideration of kneading efficiency and damage to the baked bread bottom.

[0004]

However, when bread is made using a rectangular parallelepiped bread case having a plurality of kneading blades, sometimes a bread having a distorted shape is produced. This is a problem caused by the presence of the dough in the uneven position in the bread case at the stage of forming and fermenting. As a result of numerous tests, the applicant has found that such unevenness of the dough is It has been discovered that it easily occurs when the rotation state of the provided mixing blades is different. That is, as compared with the case where the mixing blades are kneaded in the same state as shown in FIG. 7A, the case where the positions of the mixing blades are shifted by 180 ° as shown in FIG. It is considered that the kneading operation is performed independently by each kneading blade, and the dough kneaded at the end of kneading tends to be biased toward one of the kneading blades. In addition, the kneading blades are driven for a short time during degassing.
When driven in (b), the dough is in a twisted state, and the baked bread has an adverse effect that traces of the twist remain.

However, in the conventional structure described above,
Since the mixing blade engages with the drive shaft in units of 180 °, FIG.
It is conceivable that any one of the following conditions will occur, and if the user mistakenly attaches the dough at the stage of setting the mixing blades, a distorted bread may be formed as a result. In addition, when making bread, in most cases, dough is attached to the bread case, bread material is put in, and then the oven material is attached to the oven room. There is a possibility that the mounting direction may change due to play when the mutual couplings match, and there has been no reliable countermeasure. Therefore, in the present invention,
In a bread maker having a plurality of dough blades, it is an object of the present invention to ensure that the dough blades can be securely mounted in the same direction regardless of how the dough blades are attached to the rotating shaft of the pan case.

[0006]

SUMMARY OF THE INVENTION In order to solve such problems, the present invention provides a rectangular parallelepiped pan case having a plurality of rotating shafts at the tip of which a mixing blade is attached and detached, and a heater and a temperature sensor. An oven chamber having a support member for fixedly mounting the pan case on the inner bottom portion, a plurality of drive shafts rotationally driven by a motor, and the rotation shaft and the drive shaft with the pan case attached to the support member. And a coupling device for engaging the rotating shaft and the drive shaft with the coupling device in a constant state.

The coupling device comprises a first engaging member attached to the rotating shaft and a second engaging member attached to the driving shaft, and the first engaging member has a center. Two or more claw portions facing each other at different distances from each other, and the second engagement member has two or more claw portions that engage with only one of the claw portions of the first engagement member. Is formed.

In addition to the above configuration, the motor is controlled so that the kneading blades are rotated at a low speed from a predetermined time before the kneading process is completed until the kneading process is completed.

[0009]

According to the structure of the present invention, by mounting the pan case on the support member of the oven chamber, the drive shaft provided in the oven chamber and the rotary shaft provided in the pan case are connected via the coupling. Connected. At this time, in this coupling, which is a feature of the present invention, since the first engagement member on the rotation shaft side and the second engagement member on the drive shaft side engage only with the pair of claw portions, The rotating shaft is always connected to the driving shaft in a fixed state, so that the plurality of mixing blades attached to the rotating shaft always rotate in the same state in the pan case.

[0010] In addition to the structure of the coupling device, the motor is rotated at a low speed from a predetermined time before the kneading operation to the end of the kneading operation. Will be moving slowly. By expanding the dough into a bread shape from this state, a beautiful mountain-shaped bread having a high center can be made.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are internal sectional views showing a bread maker according to one embodiment of the present invention, wherein 1 is a bread maker main body, and a base 2 is provided at a bottom portion.
And the oven chamber 3 and the motor 4
Are juxtaposed. Reference numeral 5 denotes a lid, which is attached to the upper surface of the oven chamber 3 so as to be freely opened and closed. Reference numeral 6 denotes a board case, which is mounted on the upper surface of the motor 4 in the main body 1, is equipped with a control circuit board 7 inside, and has an operation panel 8 on the upper face. Reference numeral 9 denotes a bread case having a rectangular cross-section into which various bread ingredients are put, and two rotating shafts 10, 1 at equal intervals from the center thereof.
The rotating shafts 10 and 11 have projecting blades 12 and 12 attached to the upper ends thereof, and couplings 13 and 13 are provided at the lower ends.

Reference numeral 14 denotes a support provided on the bottom of the oven chamber 3 for detachably supporting the pan case 9.
Drive shafts 15, 16 are penetrated at the same intervals as the rotating shafts 10, 11. Couplings 1, 13 engaged with the couplings 13, 13 of the pan case 9 are provided at upper ends of the drive shafts 15, 16.
Pulleys 18 and 18 are provided at the lower end, and the pulleys 18 and 18 are linked to each other by a V-belt 19 so as to be able to move freely. Reference numeral 20 denotes a large pulley provided on the drive shaft 16 above the pulley 18.
Pulley 22 and V-belt 2 attached to the drive shaft 21
3 linked.

Reference numeral 24 denotes a heater, which is disposed substantially horizontally below the inside of the oven chamber 3 so as to surround the pan case 9. Reference numeral 25 denotes a temperature sensor which is attached to the outer wall surface of the oven chamber 3 and monitors the internal temperature of the oven chamber 3.

Next, the structure for attaching the pan case 9 to the support of the oven chamber 3 will be described in detail with reference to FIG. The mixing blade 12 includes a single wing portion 12 a curved so that a tip portion thereof retreats in a rotation direction, and a rotation shaft 1.
And a boss portion 12b attached to the boss portion 0,11. Thereby, when removing the baked bread from the bread case, traces and damage of the dough blades remaining on the bottom of the bread are minimized. At the bottom of the pan case 9, there is provided a fitting portion 27 fitted and fixed to the support portion 14 provided on the bottom surface of the oven chamber, and the rotating shafts 10 and 11 and the coupling 13 are provided inside the fitting portion 27. , 13 are equipped.

The rotary shaft 10 has a D-shaped cut end portion 28 to which the mixing blade 12 is attached and detached. The boss 12b of the mixing blade 12 is provided with a similar D-shaped mounting hole 12c for kneading. The mounting position of the blade 12 is determined.

The coupling 13 has an arm 30 having a claw portion 29 formed by bending a distal end thereof downward and extending horizontally in the left and right direction, and a D-shaped cut of the arm 30 and the rotating shaft 10 at the lower end of the rotating shaft 10. The line 28 is mounted so as to be horizontal. The arm 30 has left and right lengths different from each other,
The right arm 30a is shorter and the left arm 30b is longer with respect to the shape cut line.

On the other hand, the coupling 17 provided on the support portion 14 of the oven chamber 3 has an arm 32 having a claw portion 31 formed by cutting and raising the tip portion upward and extending horizontally horizontally. The length of the arm 32 is changed from left to right so as to match the arm 30 of the pan case side coupling 13. That is, the short arm 30a of the coupling 13
And a long arm 32b engaged only with the long arm 30b of the coupling 13. The coupling 17 is connected to pulleys 18, 1
8 are linked to the V-belt 19, so that the left and right couplings 17, 17 are set so as to face in the same direction during product assembly.

When using a bread maker constructed as described above, first, the kneading blades 1 are attached to the rotating shafts 10 and 11, respectively.
The bread case 9 into which the bread materials such as flour, water, and yeast are put is mounted in the oven chamber 3.
The fitting portion 27 of the pan case 9 is supported by the supporting portion 14 of the oven chamber 3.
To the coupling 13, 13 on the pan case side.
And the couplings 17, 17 on the oven chamber side are polymerized.
In this state, when the motor 4 is driven in accordance with the start of the kneading operation, the drive shaft 16 of the oven chamber 3 linked with the motor drive shaft 21 and the V belt 23 is rotated at a reduced speed.
The drive shaft 15 linked by the belt 19 rotates in conjunction therewith.

Thus, the coupling 1 on the oven chamber side
When the members 7 and 17 rotate, the claws 31 of the couplings 17 and 17 are engaged with the claws 29 of the couplings 13 and 13 on the pan case side, and finally the rotating shaft 1 of the pan case 9 is rotated.
By rotating 0 and 11, the kneading operation by the kneading blades 12 and 12 is performed. At this time, each coupling 1
As shown in FIG. 4, the claw portions provided on the arms having the same length are engaged with each other, and the right and left kneading blades are guided by the D-shaped cut lines of the rotating shafts 10 and 11 for mounting. It rotates while always keeping the same direction.

After the start of kneading, a bread making operation is executed according to the time chart of FIG. FIG. 5 shows a case where the ordinary bread menu is selected, and the present invention is not particularly limited to the configuration of the present invention. During T1 seconds after the start of kneading, the motor is controlled to rotate at a low speed in order to prevent scattering of the bread material in the separated state. Thereafter, during the kneading operation, the kneading blades rotate in the same direction in the same state, and kneading is performed by high-speed rotation.
Can be kneaded without separation while going back and forth. Also, from T2 seconds before the end of the kneading operation, the motor is again controlled to rotate at a low speed in order to bring the kneaded dough close to the center of the bread case.

After kneading is completed, primary fermentation based on heater control is performed. The bread dough is brought near the center of the bread case at the end of kneading, so at the stage of fermentation,
It swells into a beautiful mountain shape that matches the shape of the bread case. Subsequently, the motor is slightly driven to rotate the kneading blades, and the expanded dough is degassed. Also in this step, since the left and right dough blades 12 and 12 rotate in the same direction in the same state, there is no trace of twist in the bread dough.

Next, the molding fermentation is again performed based on the heater control, the dough is expanded in a chevron shape, and the bread is finally baked to complete the process. The bread baked in this way becomes a well-balanced Yamagata and looks good.

[0023]

As described above, the present invention is constructed, and means for engaging the drive shaft of the oven chamber and the rotation shaft of the pan case in a constant state is formed in the coupling device.
The user simply puts the bread case in the oven room without any troublesome steps, the mutual dough will rotate in the normal direction, and a distorted bread may be accidentally made. Absent.

Further, in addition to such a coupling device, by lowering the rotation of the kneading immediately before the kneading operation is completed, the kneaded dough can be collected in the center of the bread case. This makes it possible to reliably produce beautiful mountain-shaped bread.

[Brief description of the drawings]

FIG. 1 is a side internal sectional view showing a bread maker according to the present invention.

FIG. 2 is a front internal sectional view of the bread maker.

FIG. 3 is an explanatory view showing a coupling device of the bread maker.

FIG. 4 is an explanatory view showing an engaged state of a coupling device in the bread maker.

FIG. 5 is a time chart showing the operation of the bread maker.

FIG. 6 is an explanatory view showing a coupling device in a conventional bread maker.

FIG. 7 is an explanatory view showing a dough blade mounting position of the bread maker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bread-making machine main body 3 Oven room 4 Motor 9 Pan case 10 Rotating shaft 11 Rotating shaft 12 Mixing blade 13 Coupling 15 Drive shaft 16 Drive shaft 17 Coupling 29 Claw part 30 Arm 31 Claw part 32 Arm

Claims (3)

[Claims] 1. An oven having a rectangular parallelepiped pan case having a plurality of rotating shafts at the tip of which a mixing blade is attached and detached protruding from a bottom, and a support member having a heater and a temperature sensor and fixedly mounting the pan case on an inner bottom. A bread making machine, comprising: a chamber; a plurality of drive shafts rotationally driven by a motor; and a coupling device that engages the rotary shaft and the drive shaft with a pan case attached to the support member. A bread maker, comprising: means for engaging a rotating shaft and a drive shaft in a constant state in a coupling device. 2. The bread maker according to claim 1, wherein
The coupling device has a first shaft attached to a rotating shaft.
And a second engaging member attached to the drive shaft. The first engaging member has two or more claw portions facing each other at different positions from the center. A bread maker, wherein the second engaging member is formed with two or more claws that engage only with one of the claws of the first engaging member. 3. The bread maker according to claim 1, wherein the motor is controlled to rotate the kneading blades at a low speed from a predetermined time before the kneading process is completed until the kneading process is completed. Bread maker featured.