JPH0580889B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an automatic bread maker for automatically producing bread at home.

"Prior art" Previously, Japanese Patent Application No. 1983-227235 (Japanese Patent Application No. 1983-87041
No. Publication), Utility Application No. 155972 (Sho 62-65075)
(Japanese Patent Application No. 1986-273629), Japanese Patent Application No. 1983-273629
As shown in Japanese Patent No. 134037), automatic bread makers put bread ingredients and water in a bread case, mix them using a rotating kneading blade, and then bake bread through fermentation and other steps. A blower fan was installed to supply cold or warm air into the bread case to maintain the temperature of the dough at around 28 degrees Celsius.

"Problems to be Solved by the Invention" When adding a function for cooling bread after baking to an automatic bread maker, if the above-mentioned ventilation fan is used as a fan for cooling bread after baking, the kneading rotary blades It is no longer possible to rotationally drive the blowing fan using the driving source, and it is necessary to separately provide a driving source for the kneading rotary blade and the blowing fan. On the other hand, when the blowing fan is rotated using the drive source of the mixing rotary blade, it is necessary to equip a dedicated cooling fan and its drive source to cool the bread after baking. However, adding a function to cool bread after baking to an automatic bread maker caused the problem that the automatic bread maker became larger and the product price increased.

``Means for Solving the Problems'' However, in the present invention, bread ingredients are placed in a bread case, water is added thereto, kneaded by the rotary kneading blade 7 in the bread case, and then fermentation etc. In an automatic bread maker that bakes bread in a step-by-step manner, a clutch is interposed in the drive transmission system between the kneading rotary blade and the drive source, and the clutch is interlocked and connected to the drive source of the kneading rotary blade. A fan for blowing air is installed inside the bread case.

``Function'' Therefore, the bread after baking can be cooled by the blowing fan that is rotated using the drive source of the kneading rotary blade, which leads to an increase in the size of the automatic bread maker and an increase in the product price. This makes it possible to add a function to an automatic bread maker to cool bread after baking.

"Example" Hereinafter, an example of the present invention will be described in detail based on the drawings. In the figure, 1 is the automatic bread maker body, 2 is the oven,
Reference numeral 3 denotes a bread case which is a material container, and a rotary kneading blade 7 is removably fitted to the upper end of a drive shaft 4 protruding from the center of the inner bottom of the bread case 3.

An input pulley 5 is attached to the lower end of the drive shaft 4, and the input pulley 5 is connected via a belt 6 to an output pulley 8 attached to a motor shaft 13 to transmit rotational power.

The output pulley 8 has this center bearing 20 fitted onto one end of the motor shaft 13 with a slight gap.

A spring 9 is fitted onto the outer periphery of the central bearing 20 of the output pulley 8 with a slight gap, and the upper end of the spring 9 is attached to the motor shaft 13 in close contact.

A ring 11 is fixed on the motor shaft 13 above the spring 9 with a screw, and the ring 11 has a protrusion 10 extending toward the outer circumference of the spring 9.

A cut-and-raised portion 14 is formed at the lower end of the spring 9 to engage with the tip of the projection 10 when the motor shaft 13 rotates, and the winding direction of the spring 9 is set so that the motor 15 rotates in the normal direction. The rotation direction of the motor shaft 13 is the same as that of the shaft 13, and when the motor 15 is driven in the normal rotation direction, the spring 9 is tightened to the center bearing 20 of the output pulley 8, and the motor shaft 13 and the output pulley 8 are rotated together to control the rotation of the motor shaft 13. At the same time, when the motor 15 is driven in reverse, the spring 9 is loosened, the central bearing 20 of the output pulley 8 is released from the motor shaft 13, and the kneading rotary vane is transmitted from the motor shaft 13 to the kneading rotary vane 7. It is configured to cut off rotational transmission to 7.

Further, a blower fan 16 is attached to the other end of the motor shaft 13, and the air sucked in from the suction port 33 of the casing 18 that houses the blower fan 16 is passed through the blower duct 17 to the tip of the blower duct 17. from the nozzle 23 into the bread case 3.

The guide pipe 19 of the housing 18 to which the air duct 17 is connected is formed into a symmetrical hopper shape, so that air can be blown in one direction by either forward or reverse rotation of the air blowing fan 16.

In addition, 22 in the figure is a heater provided inside the air duct 17, and in order to maintain the temperature of the bread dough 25 at around 28 degrees Celsius during kneading, the heater 22 and controls the operation of the ventilation fan 16.
Cold air or warm air is blown into the bread case 3 from the bread case 3. The sensor 24 is provided so as to pass through the drive shaft 4 and protrude from the upper end of the rotational center of the kneading rotary blade 7, so as to come into contact with the bread dough 25.

26 in the figure is a heater installed inside the oven 2, which controls the temperature inside the oven 2 at 32 degrees Celsius during fermentation.
The oven 2 is equipped with a sensor 28 that detects the internal temperature so that it can be controlled around 200 degrees Celsius or around 200 degrees Celsius during baking.

In the figure, 27 indicates the motor 15 and each heater 2.
2, 26, etc., to automatically bake bread.

In the figure, reference numeral 21 denotes a fan that is attached to the motor shaft 13 on the opposite side to the blowing fan 16 and supplies cold air to the motor 15.

This embodiment is configured as described above, and in the processes of an automatic bread maker that manufactures bread, one air blower is used for the kneading and bread cooling processes during the kneading, fermentation, baking, and bread cooling processes. This is carried out using a fan 16, and the blowing fan 16 is rotationally driven by the motor 15 of the mixing rotary blade 7. During mixing, the motor 15 is driven in normal rotation and the clutch is turned on. The kneading rotary blade 7 and the blowing fan 16 are rotated at the same time.

At this time, the motor 1 is operated for 1 to 2 minutes from the start of mixing until the powder such as flour is sufficiently mixed with water.
5 is intermittently driven in a cycle of 1 second drive and 3 second stop to prevent the powder from scattering due to the air blown from the kneading rotary blade 7 or the air blower fan 16 at the initial stage of kneading. When the motor 15 is continuously driven after 1 to 2 minutes from the start of kneading, the dough 25 is kept at the optimum temperature (around 28 degrees Celsius) while receiving cold or warm air from the blower fan 16, and is kneaded. It is kneaded by two rotary blades 7.

Thus, when the dough 25 has been kneaded to the set time when the gluten is at its best, the motor 1
5 is stopped, and the kneading process is completed.

Next, the main heater 26 starts heating after fermentation and other procedures according to the program.

In this way, when the bread is baked and enters the cooling stage, the motor 15 is driven in the reverse direction, the clutch is disengaged, and the kneading rotary blade 7 is stopped.
Only the ventilation fan 16 is rotated. Thereby, the bread can be cooled by the cold air from the blower fan 16 without damaging the bread by the kneading rotary blade 7 embedded in the bottom of the baked bread.

In this embodiment, a clutch mechanism is used that connects and disconnects the rotational power by tightening and loosening the spring 9.
As shown in FIG. 6, a ratchet gear 29 is mounted on the motor shaft 13, a pin 30 is planted on the upper surface of the output pulley 8, a clutch pawl 31 is slidably attached to the pin 30, and the toe of the clutch pawl 31 A one-way clutch in which the clutch is pressed against the ratchet gear 29 by a spring 32 may be used, or other electromagnetic clutches may be used to achieve the same effect.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides bread ingredients that are put into the bread case 3, water is added thereto, and after kneading with the kneading rotary blade 7 inside the bread case 3, In an automatic bread maker that bakes bread after fermentation and other steps, the kneading rotary blade 7 and its drive source 1 are used.
A clutch is interposed in the drive transmission system between the kneading blades 5 and a blowing fan 16 which is interlocked with the drive source 15 of the kneading rotary blade 7 and blows air into the bread case 3. Since the blowing fan 16 that is rotationally driven by the drive source 15 of the rotary blade 7 can cool the bread after baking, the automatic bread maker can be used without increasing the size of the automatic bread maker or increasing the product price. This has the practical effect of adding a function to cool the bread after baking.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of the entire automatic bread maker, Figure 2 is a partially enlarged view of the clutch, Figure 3 is a perspective view of the ring, Figure 4 is a perspective view of the spring, and Figure 5 is the air blower. FIG. 6 is a plan view of a one-way clutch showing another clutch. 3... Bread case (material container), 7... Rotating blade for mixing, 15... Motor, 16... Fan for blowing air.

Claims (1)

[Claims] 1. In an automatic bread maker, bread ingredients are placed in a bread case 3, water is added thereto, kneaded by the mixing rotary blades 7 in the bread case 3, and then baked through fermentation and other steps. A clutch is interposed in the drive transmission system between the kneading rotary blade 7 and this drive source 15, and the clutch is interlocked and connected to the drive source 15 of the kneading rotary blade 7 to blow air into the bread case 3. An automatic bread maker characterized by being provided with a fan 16.