JPH026890Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fully automatic rice cooker that is characterized by rice transfer and rice measurement.

The conventional method for transferring and measuring rice in a fully automatic rice cooker is to place the rice bin above the rice cooker, allow the rice to fall naturally, and store it in a space provided at the bottom of the rice bin to create a fixed volume. Weigh out the rice, and then
A method was used in which a valve installed at the bottom of this space was opened and closed to allow the rice to fall naturally into the rice cooker.

In this method, the rice pot is installed above the rice cooker, so the steam and heat generated during rice cooking are
This had the disadvantage of affecting the rice in the rice bin and making it unsanitary to store rice in the rice bin for a long period of time. In addition, since the rice is allowed to fall naturally into the space provided at the bottom of the rice bin and a fixed volume of rice is measured, the amount of rice that enters this space changes depending on the amount of rice in the rice bin, and the rice is cooked. The drawback was that the firmness of the rice varied. Furthermore, because the rice pot is located above the rice cooker, the product tends to be unstable, and operations such as removing the cooked rice and putting rice into the rice pot are cumbersome.

The present invention eliminates the drawbacks of the conventional rice cooker by controlling the rice suction device that forcibly transfers rice with a timer, and provides a practical fully automatic rice cooker.

An embodiment of the present invention will be described below with reference to the drawings.

1 is the main body, inside which a rice cooker layer is provided at the top and a rice bin layer is provided at the bottom. 2 is a heating element constituting the rice cooker, 3 is a pot, 4 is a protective frame, 5 is a center thermostat, 6 and 7 are levers linked to the center thermostat 5, 8 is a switch button, 9
is a completed contact plate, which receives the movement of the center thermostat 5 through levers 6 and 7, and starts and completes rice cooking by closing and opening the contacts incorporated therein. 10 is a power indicator lamp, 11 is a timer display board, 12 is a timer set knob, 13 is a rice amount setting button to set the amount of rice to be cooked, and 14 is a water level adjustment button to adjust the amount of water during cooking. ,
15 is an outer lid that covers the top of the rice cooker, and is attached to the main body 1 so that it can be opened and closed. 16 is a rice bin door, 17 is a handle for opening and closing the rice bin door 16, 1
Reference numeral 8 indicates a rice loading guide provided to ensure that the rice enters the rice bin smoothly when the rice is added to the rice bin, and reference numeral 19 indicates a see-through window provided on the front of the main unit 1 so that the amount of rice in the rice bin can be visually confirmed from the outside. , 20 and 21 are heat-retaining heating elements, 22 is a heat insulating material, 23 is an inner lid mounting plate,
24 is the inner lid, and 25 is the packing. 26 is a rice bin installed at the bottom of the rice cooker, and the rice bin door 1
The surface facing the rice bin 26 has a rice input hole, and the inner bottom of the rice bin 26 is tapered. 27
is a rice transfer pipe that constitutes a part of the passage for transferring rice from the rice bin 26 to the rice cooker, and the lower opening is attached to the lowest part of the rice bin 26. 28
is a rice measuring chamber for weighing the rice sent from the rice bin 26 via the rice transfer pipe 27, and has the same volume as the minimum measuring volume of the rice amount setting button 13, and has a hole at the top for rice suction. The upper opening of the rice transfer pipe 27 is connected to this rice suction hole while maintaining airtightness. Further, a rice dropping port is provided at the bottom of the rice measuring chamber 28. 29 is rice weighing room 2
This filter is installed on the side of 8 and has a mesh size that does not allow rice to pass through. 30 is a rice suction device mounting frame, 31 is a filter holder, 32 is a filter different from the filter 29, and 33 is a packing, which includes the filter holder 31 and the rice suction device mounting frame 3.
Maintains airtightness between 0 and 0. A packing 34 maintains airtightness between the rice measuring chamber 28 and the rice suction device mounting frame 30. 35 is a rice suction device that sucks and transfers rice from the rice bin 26 to the rice measuring chamber 28 via the rice transfer pipe 27; 36 is a packing that maintains airtightness between the rice suction device 28 and the rice suction device mounting frame 30; It is provided to reduce the transmission of vibrations of the rice suction device.

The rice measuring chamber 28 has a hole on the surface facing the rice suction device mounting frame 30, and is attached to the rice suction device mounting frame 30 with a filter 29 interposed therebetween while maintaining airtightness by packing 34.
Also, a filter 32 is installed inside the rice suction device mounting frame 30.
is inserted while being supported by a filter holder 31, and is suctioned from inside the rice measuring chamber 28 by a rice suction device 35, and minute rice powder etc. that have passed through the filter 29 are removed by a filter 32, and then absorbed into the rice suction device 35. It is designed to prevent rice flour, etc. from entering. When the filter 32 becomes clogged with rice flour adhering to it, the filter holder 31 is configured to be detachable from the rice suction device mounting frame 30.
The filter 32 can be cleaned.

Reference numeral 37 denotes an opening/closing plate for opening and closing the rice dropping port provided at the bottom of the rice measuring chamber 28. Reference numeral 38 denotes a spring which applies force to the opening/closing plate 37 in a direction in which the opening/closing plate 37 closes the rice dropping port provided at the bottom of the rice measuring chamber 28. Reference numeral 39 denotes a packing, which is provided around the rice dropping opening provided at the lower part of the rice measuring chamber 28, and is provided so that airtightness can be maintained when the opening/closing plate 37 is closed.
40 is a link, and 41 is a solenoid, which are controlled by a control circuit. The operation of the solenoid 41 is transmitted to the opening/closing plate 37 by the link 40, and the opening/closing plate 37 is opened/closed. 42 is a rice washing room, which is provided at the bottom of the rice measuring room 28. 43 is a water measuring chamber, 44 and 45 are electromagnetic valves, and 46 is a pressure-resistant hose, which connects the water faucet and the electromagnetic valve 44. 47
48 is a link, and 49 is a solenoid, which opens and closes the opening/closing plate 47 via the link 48. 50 is a fixed guide for guiding rice and water, and is provided at the lower part of the rice washing chamber 42. Reference numeral 50a denotes a movable guide, which is provided at the bottom of the fixed guide 50, and is configured to rotate the main body 1 from the solid line position to the dotted line position in FIG.
installed on. Then, the fixed guide 5
0 and the movable guide 50a constitute a part of a path for transporting rice from the rice pot 26 to the rice cooker. 51
52 is a link, and 52 is a solenoid, which is controlled by a control circuit. The operation of the solenoid 52 is as follows:
Transmission is transmitted to the inner lid mounting plate 23 and the movable guide 50a via the link 51, causing both to rotate until the lower opening of the movable guide 50a faces the upper opening of the pot 3, and the rice and water are poured into the pot. Lead to within 3. 5
3 is an upper frame that supports and fixes the protective frame 4, and has a water guide hole 53a in the surface of the upper frame 53 that faces the lower opening of the movable guide 50a when the movable guide 50a faces in the vertical direction. is provided.
54 is a hose that guides the rice washing water, 55 is a drain pump that discharges the rice washing water, 56 is a drain hose for the rice washing water, 5
7 is a timer function that controls the operation time of the rice suction device 35, and a solenoid 41 that opens and closes the opening/closing plate 37.
This is a control circuit section that has functions such as controlling.

Next, the operation in the above configuration will be explained.
When the rice stored in the rice bin 26 reaches the optimal time for soaking the rice in water before the time set by the timer set knob 12, the control circuit 57 operates and the rice suction device 35 starts operating. The rice starts, passes through the rice transfer pipe 27, and is sucked up into the rice measuring chamber 28.

The time required for rice to be sucked up by the rice suction device 35 to fill the rice measuring chamber 28 is approximately constant, and the control circuit unit is configured to operate the rice suction device 35 only during this time plus a margin time. 57. In this way, a certain amount of rice is reliably measured in the rice measuring chamber 28. Rice suction device 3
5 stops, the solenoid 41 is operated by the control circuit section 57, the opening/closing plate 37 is opened, the rice falls from the rice measuring chamber 28, is transferred to the rice washing chamber 42, and after being washed, the fixed guide 50 , passes through the movable guide 50a, and is charged into the pot 3. In one series of this operation, rice equivalent to the volume of the rice measuring chamber 28 is charged into the pot 3.

The control circuit section 57 is controlled to repeat this series of operations until the amount of rice set in the rice amount setting button 13 is charged.

As described above, according to the present invention, there is a passage for transferring rice from a rice pot to a rice cooker, a hole is provided in the middle of this passage, and a hole for sucking rice is provided at the upper part, and a rice drop opening is provided at the lower part. a rice measuring chamber having an opening/closing plate for opening and closing the dropping port and having the same volume as the minimum measuring volume of the rice amount setting button; and a rice suction device for suctioning and transferring rice from the rice bin to the rice measuring chamber through the passage. , a timer to control the operating time of this rice suction device,
When the operation of the rice suction device is stopped by the spring and the timer that bias the opening/closing plate in the direction of closing the rice dropping port provided at the bottom of the rice measuring chamber, the opening/closing plate is opened and the rice in the rice measuring chamber is dumped into the rice washing chamber. A control circuit that repeatedly performs a series of operations from operating the rice suction device using the timer to stopping the operation of the solenoid that opens and closes the opening/closing plate until the amount of rice set with the rice amount setting button is prepared. The amount of rice set with the rice amount setting button is determined by the rice amount set by the rice amount setting button, and the amount of rice set with the rice amount setting button is determined from the operation of the rice suction device by the timer to the stoppage of the solenoid that operates the opening/closing plate that opens and closes the rice dropping port in the rice measuring chamber. Since the rice is weighed by repeating the above operation, the size of the rice measuring chamber only needs to be the same as the minimum measuring volume of the rice amount setting button. can be made more compact.

In addition, since the rice is not measured by detecting the weight or time of the rice, but by the volume of the rice measuring chamber, there is no need for any sensing parts for measuring rice, which simplifies the configuration. It is possible to reduce the variation in measurement.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a fully automatic rice cooker showing an embodiment of the present invention, Fig. 2 is a side sectional view of the same, and Fig. 3 is a fully automatic rice cooker showing an embodiment of the present invention.
FIG. 4 is a front sectional view of part A in the figure, and FIG. 4 is a front sectional view of the same main part. 1...Main body, 26...Rice bin, 27...Rice transfer pipe, 28...Rice measuring chamber, 35...Rice suction device, 57...Control circuit section.

Claims (1)

[Scope of utility model registration request] A rice cooker, a rice bin disposed below the rice cooker, a passage for transferring rice from the rice bin to the rice cooker, a passage provided in the middle of the passage and having a rice suction hole in the upper part, and a rice pot in the lower part. A rice measuring chamber is provided with a rice dropping port and an opening/closing plate for opening and closing the rice dropping port, the rice measuring chamber has the same volume as the minimum measuring volume of the rice amount setting button, and the rice is sucked from the rice bin into the rice measuring chamber through the passage. a rice suction device for transferring the rice; a timer for controlling the operating time of the rice suction device; a spring for biasing the opening/closing plate in a direction to close a rice dropping port provided at the bottom of the rice measuring chamber; When the suction device stops operating, a solenoid opens the opening/closing plate and drops the rice in the rice measuring chamber into the rice washing chamber, and a series of operations from the operation of the rice suction device by the timer to the stoppage of the solenoid that opens/closes the opening/closing plate. This fully automatic rice cooker is equipped with a control circuit unit that repeatedly performs the following steps until the amount of rice set with a rice amount setting button is prepared.