JP2568665B2 - Bread making machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a home bread maker capable of making a timer in a similar manner to an electric rice cooker.

2. Description of the Related Art Generally, baking at home has succeeded for the first time by skillful management of temperature and time using a mill, a fermenter, a wringer, an oven, and the like. In order to electrically automate this skillful baking operation like a rice cooker, a home baking machine as shown in FIG. 3 has been conventionally proposed.

That is, the conventional bread maker shown in FIG. 3 has a chassis 2 inside a main body case 1, and a baking chamber 6 in which a motor 3, a heater 4 and a heat insulating material 5 are arranged on the outer periphery is fixed to the chassis 2. ing. A kneading container 8 having kneading blades 7 is removably mounted in the baking chamber 6.
Of the kneading blade 7 via the belt 9 and the pulleys 10 and 11
Rotates at reduced speed. A lid 13 having an inner lid 12 is provided above and below the firing chamber 6 so as to be openable and closable, and a water supply device 14 for the mixing vessel 8 is provided.

The temperature of the kneading vessel 8 is detected by a temperature detecting section 15, and the control conditions of a control device 16 for controlling the motor 3, the heater 4, the water supply device 14 and the like are set from an input device (not shown). .

In the conventional bread maker configured as described above, a bread material except water is put into the kneading container 8, and desired baking time, control conditions, and the like are input from the input device (not shown). At a predetermined time, the operation of the water supply device 14 and the motor 3 is started, and the kneading process proceeds while the temperature of the kneading container 8 is detected by the temperature detection unit 15, and whether the temperature reaches the predetermined temperature is reached. Or, at a predetermined time, the motor 3 is stopped and the fermentation process is started. In this fermentation step, the temperature of the kneading vessel 8 is used to control the temperature by the heater 4, and the gas removal process and the like by the rotation of the motor 3 are repeated to proceed with the fermentation. Into the firing process and after a certain time,
The baking is completed.

Problems to be Solved by the Invention In such a conventional bread maker, in order to bake at a desired time, the ingredients are put into the dough container 8 after the ingredients are put into the dough container 8 until the baking actually starts. As a result, the flour in contact with the water is likely to form a lump, which makes it difficult to mix evenly. The rotation had to be repeated. In order to make the kneading container 8 detachable, the connector for transmitting the rotational drive is provided with a play. When the rotating direction is changed, the connector freely rotates the play portion, and a shock is applied to a new fitting surface. Will fit together. Therefore, the sound during kneading necessarily includes the impact sound of this connector in addition to the sound produced by the dough, and this is a serious problem when driving late, for example. As a countermeasure against this noise, a connector is provided with a cushioning material or the connector is made of resin. However, since the usage environment is high temperature, the actual soundproofing is not achieved as desired.

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a bread maker capable of reducing noise generated in a connector portion during a kneading process.

Means for Solving the Problems In order to solve the above problems, a bread maker according to the present invention is provided with a kneading container having kneading blades internally rotatably driven in at least two directions, removably mounted in a firing chamber. , The kneading blades, during normal rotation during the kneading process, at the time of reverse rotation,
At first, the motor is driven to rotate with a very short energizing time, and thereafter, the motor is driven to rotate with an energizing time longer than this energizing time to shift to the main mixing.

Operation According to the above configuration, the kneading blades are initially driven to rotate in a very short energizing time during normal rotation and reverse rotation in the kneading process. As a result, the connector does not impactly fit into a new fitting surface, so that the impact noise of the connector is not generated during the kneading process.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a bread maker according to an embodiment of the present invention. As shown in FIG. 1, a chassis 31 is provided below the inside of a main body case 30. A motor 32 is fixed to the motor.A cooling fan 33 of the motor 32 itself is fixed to one end of a shaft of the motor 32, and a small pulley 34 is fixed to the other end. Is fixed with a fan guide 35 for improving the cooling efficiency. Further, a large pulley 37 is pivotally supported on the chassis 31 via a bearing 36, and a connector 38 is fixed to the opposite shaft end, and the small pulley 34 and the large pulley 37 can be rotated via a belt 39. Is joined to.

A switch lever 40 is pivotally supported on the chassis 31 so as to be rotatable about a shaft 41. A switch 42 is mounted so as to be located above one end of the switch lever 40, and has a cylindrical shape. A guide 43, a baking chamber 44, and a heat shield plate 45 covering the periphery thereof are fixed. Further, in the baking chamber 44, a heater 48 is fixed to a wall surface via an insulator 46 by a stopper 47, and further, a container fixing spring 49 and a temperature detecting unit 50 elastically supported are fixed. Also, a container connector 52 is fixed on one side via a bearing 51 on the inner bottom,
And a blade shaft 54 to which the kneading blade 53 can be detachably mounted on the other side.
The kneading container 55, which is rotatably supported, is removably fitted and mounted in the firing chamber 44 by the cylindrical guide 43 and the container fixing spring 49. The kneading container 55 is mounted by being pressed against the temperature detecting unit 50 when the kneading container 55 is mounted, and a hand 56 is attached to an upper end portion. The upper part of the firing chamber 44 is fixed to a fixing member 57, and the upper frame 58 of the main body case 30 is fixed to the fixing member 57 and also fixed to the chassis 31.

Inside the horizontal upper surface of the firing chamber 44, a driving device 59, a shaft
A transmission plate 61 for driving an opening / closing plate 63 rotatably supported by 60 is provided.
An inner container 66 of the main case 30 is provided with a yeast container 65 having a rotating shaft 64 to which an openable and closable plate 63 is fixed.
Is formed on a lid body 68 having a lid cover 67 to which is attached. 68a is the installation position of the yeast container 65 and the driving position 5
The partition wall 68a is formed so as to separate the position immediately above the firing chamber 69 from the other lids. Reference numeral 70 denotes a switch panel for inputting settings such as baking time, etc., and 71 denotes a control panel for determining control conditions for the motor 32, the heater 48, and the like based on the input and input information of the temperature detection unit 50, and outputting the control conditions. Device.

The bread maker of the present invention configured as described above first sets a kneading container 55 in which a kneading blade 53 is attached and a baking material such as flour or water excluding yeast is put in a baking chamber 44 and a lid is set. The body 68 is closed, and the yeast container 65 is filled with a predetermined amount of yeast, and the switch panel 70 is used to set the baking time of the bread.

With such a state, after a predetermined time elapses, the motor 32 rotates the connector 38 via the drive system of the pulley 34, the belt 39, and the large pulley 37, thereby driving the container connector 52. The kneading blades 53 in the kneading container 55 are rotated, and the baking material is kneaded.

The motor driving pattern during this kneading process has a shape as shown in the pattern diagram of FIG. 2, and as is clear from this pattern diagram, the kneading blade 53 is driven to rotate in two forward and reverse directions. At the time of forward rotation and reverse rotation in the kneading process, the kneading blade 53 is initially driven to rotate with a very short energization time as indicated by A, and thereafter, the energization time B or B 'longer than the energization time A And the process is shifted to the main mixing. In this case, the initial energizing time A is different due to the resistance of the drive system (depending on whether the bearing is a ball bearing or an impregnated sintered metal). It is a very short time span,
The setting of this time width depends on the connector 38 on the main unit side and the container connector.
The length of movement is adjusted within the play area of 52, and the time is adjusted so that the mating surfaces at the time of normal rotation and reverse rotation just come into contact. In the case of the present invention, the time is set to 0.03 to 0.06 seconds.

Then, when a predetermined time of this kneading step has elapsed, the lid 68
The drive device 59 provided in the inside is energized, and the transmission plate 61
Is driven laterally, whereby the rotating shaft 64 operates to open the opening / closing plate 63, and the yeast in the yeast container 65 is kneaded into the container 55.
Drop it in and throw it in. Thereby, it is kneaded for a predetermined time together with other yeast materials. During the kneading process, as in the kneading process, the kneading blades 53 are initially rotated and driven with a very short energizing time as indicated by A at the time of normal rotation and reverse rotation to perform kneading. When the kneading process is completed, the primary fermentation, degassing, forming fermentation, and the like are performed based on the process control of the control device 71 and based on the temperature information detected by the temperature detection unit 50, while adjusting the temperature of the kneading container 55 with the heater 48. Each step such as baking is automatically performed, and bread is baked at a set time.

In the above-described embodiment of the present invention, the kneading blades 53 are initially driven to rotate in a very short energizing time as shown in FIG. As a result, only the play portion of the body-side connector 38 and the container connector 52 that perform the rotational drive transmission is rotated and moved, and as a result, the body-side connector 38 and the container connector 52 are impacted on a new mating surface. It will not be fitted.

Effect of the Invention As is clear from the description of the above embodiment, the bread maker of the present invention is configured such that the kneading blades are initially driven to rotate in a very short energizing time during normal rotation and reverse rotation in the kneading process. As a result, only the play portion of the connector that transmits the rotational drive rotates and moves, and as a result, it does not engage with a new fitting surface in an impact manner. Generation can be prevented. Further, with this configuration, it is not necessary to use a special cushioning material, so that the cost is excellent and the reliability is high.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a bread maker showing one embodiment of the present invention,
FIG. 2 is a pattern diagram showing a motor drive pattern during a kneading process of the bread maker, and FIG. 3 is a side sectional view of a conventional bread maker. 44 ... Baking room, 53 ... Kneading blade, 55 ... Kneading container.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Tatsuo Washizaki 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Michio Hiraoka 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Takahiro Ohshita 1006 Kadoma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

(57) [Claims] 1. A kneading container having therein kneading blades rotatably driven in at least two directions, removably mounted in a firing chamber, and the kneading blades are rotated in a normal rotation during a kneading process.
At the time of reverse rotation, a bread maker that is initially driven to rotate for a very short energizing time, and then driven to rotate for a longer energizing time to shift to main mixing.