JP2903440B2 - Jar rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jar rice cooker, and more particularly to a jar rice cooker that uniformly heats the inside of an inner pot and cooks rice without unevenness.

[0002]

2. Description of the Related Art FIG. 6 is a side sectional view showing a configuration of a conventional jar rice cooker. In FIG. 6, 1 is a main body, 2 is an outer pot, 4 is a sheath-shaped linear rice cooking heater, 5 is a sensor, 6
Denotes a latch, and 7 denotes an inner pot. 11 is a heat shield plate and 14 is a plug. 30 is a lid, 31 is a hinge, 37
Is a latch and 38 is a push button. When the push button 38 is pressed, the lid 30 rotates about the hinge 31 and the upper part of the main body 1 is opened. 39 is an inner lid, 42 is a shaft. The inner lid 39 is detachably attached to the shaft 42. 50
Denotes an operation unit, 51 denotes an operation sheet provided with touch keys, 52
Denotes a liquid crystal display window. 62 is a back cover, 70 is an operation board, 7
1 is a liquid crystal display, and 72 is a lead wire. The lead wire 72 led out from the operation unit 50 passes near the hinge unit 31 and is connected to a power supply board provided on the bottom surface of the main body 1.

A conventional jar rice cooker having such a configuration is as follows.
After polish rice and water into inner pot 7, put inner lid 39 on inner pot 7.
Is placed and the lid 30 is closed. The plug 14 is connected to an outlet, and a meal time is reserved while watching the display on the liquid crystal display window 52 on the surface of the lid 30. At the reserved time, the rice cooker 4 is energized to start rice cooking, and water and rice inside the inner pot 7 are heated by the rice cooker 4 and the temperature rises.
When the rice cooker advances and the water in the inner pot 7 decreases and the cooking temperature is reached, the sensor 5 operates and the energization of the rice cooker 4 is automatically stopped, and the rice is cooked in the inner pot 7.

[0004]

As described above, the conventional jar rice cooker is configured to cook rice by heating the inner pot 7 housed in the main body 1 from below with the linear rice cooker 4. . Therefore, the temperature of the portion close to the rice cooker 4 becomes higher and the temperature of the portion farther away becomes lower, and the temperature distribution of water inside the inner pot 7 becomes uneven. For this reason, the cooked rice may have uneven cooking. In particular, when the amount of cooked rice is large, the rate of occurrence of uneven cooking increases, and there is a problem that rice with a thin portion can be cooked at the center of the inner pot 7 away from the rice cooker 4. The present invention has been made in order to solve the problems of such a conventional jar rice cooker, and has a uniform temperature distribution of water in an inner pot to cook delicious rice without uneven cooking. Is realized.

[0005]

According to the present invention, there is provided a main body in which a rice cooker is disposed at an inner bottom portion of an outer kettle mounted inside, and the inner pot is interposed so as to be able to be taken out, and one end of the main body is supported by a hinge. A latch is attached to the other end, and an operation unit is provided on the upper surface, and a lid body that is opened and closed with a hinge as a fulcrum and an inner lid that covers the inner pot is attached, and the temperature of the operation unit and the rice cooker including the microcomputer provided on the control board In a jar rice cooker equipped with a control unit for controlling the inside, etc., a motor is provided on the bottom of the main body, the inner pot is connected by the connecting mechanism, and the tilt mechanism is provided on the bottom, and the inner pot is tilted by this tilt mechanism and the rotating mechanism The jar rice cooker is configured to rotate. In addition, a jar rice cooker in which the tilt mechanism is also used as a leg of the main body is configured.

[0006]

At the reserved time, the microcomputer operates to turn on the switch, thereby turning on the rice cooker. The rice cooker provided below the inner pot generates heat and heats the water inside to start cooking, and the temperature of the water in the inner pot starts to rise. When the temperature of the water starts to rise, the drive motor is driven, and the inner pot starts rotating together with the inner lid via the connection mechanism. At the same time, the tilt motor is driven, the cam fixed to the output shaft rotates, and the leg shaft is pushed down against the spring. When the depressed leg shaft tilts the inner hook together with the main body and tilts about 20 degrees, only the rotation of the tilt motor stops. The water in the inner pot is appropriately moved by the inner pot that rotates while tilting, and the inside of the inner pot is uniformly heated by the heat of the heated rice cooker. When the tilting rotation of the inner pot is performed for a certain period of time, the tilting motor rotates in the reverse direction, the main body is returned to a horizontal position, the driving motor is stopped, and the rice cooking heater is turned off after the horizontal rice cooking is advanced again. Then, the rice is cooked evenly in the inner pot, and the meal is started at the reserved time.

[0007]

1 is a side sectional view showing the structure of an embodiment of the present invention.
2 is a top view of FIG. 1, and FIG. 3 is a bottom view of FIG. FIG.
In FIG. 3 to FIG. 3, the same parts as those of the conventional device are denoted by the same reference numerals, and the description will be partially overlapped. 1 to 3, reference numeral 1 denotes a jar rice cooker main body. 2 is an outer pot attached to the inside of the main body 1, 4
Is a rice cooking heater, 5 is a sensor, 6 is a latch, and 7 is an inner pot. Reference numeral 8 denotes a coupling mechanism, and reference numeral 9 denotes a drive motor. The connecting mechanism 8 rotatably connects the inner shuttle 7 to the drive motor 9 so that the inner shuttle 7 can be freely taken out of the outer shuttle 2. Inner pot 7
A standard water level line 7a indicating an appropriate amount of water with respect to the volume of rice is engraved on the inner surface of.

FIG. 4 shows the structure near the coupling mechanism 8 and the drive motor 9. In FIG. 4, 9a is an output shaft of the drive motor 9, 9b is a holding frame, 9c is a fixing screw, and 9d is four mounting columns. The drive motor 9 is attached to the inner surface of the main body 1 via a holding frame 9b by a fixing screw 9c that is screwed into the attachment column 9d. 8a is a connecting plate fixed to the output shaft 9a, 8b and 8c are two projecting pieces formed on the connecting plate 8a, 8d and 8e are recesses provided on the inner pot 7 and corresponding to the projecting pieces 8b and 8c, The connecting mechanism 8 is constituted by the connecting plates 8a and the like. 11 is a heat shield plate, 12 is a code reel, and 14 is a plug attached to the code reel 12. 15 is a power supply board, 17 is a mounting wall on which the power supply board 15 is mounted, and 18 is a leg. Four legs 18 are provided at four corners of the bottom surface of the main body so as to protrude.

Reference numeral 20 denotes a tilting mechanism. The tilt mechanism 20
It is provided on the leg 18 of the main body 1. The specific structure of the tilt mechanism 20 is shown in an exploded perspective view of FIG. 21 is a mounting plate of the tilt mechanism 20, 22 is a tilt motor,
24 is an output shaft and 25 is a cam. A motor that outputs a high torque with a built-in reduction gear is used as the tilt motor 22, and a cam 25 that rotates gradually is fixed to an output shaft 24. 26 is a leg shaft, 27 is an expansion spring, and 28 is a bearing. The leg shaft 26 is formed in a T-shaped cross section having a disk portion 29, and the disk portion 29 is constantly in contact with the cam 25 under the expansion force of the expansion spring 27. In a normal state, as shown in FIG. 1, the leg shaft 26 is stored in the bearing 28, and the tilting mechanism 20 also serves as two of the four legs 18.

Reference numeral 30 denotes a lid provided on the upper part of the main body 1. Reference numeral 31 denotes a hinge for opening and closing the lid 30, reference numeral 32 denotes a hinge shaft, and reference numeral 34 denotes a hinge spring. 36 is a steam cylinder, 37 is a latch corresponding to the latch receiver 6, and 38 is a push button. 39 is an inner lid, 41 is a synthetic resin lid frame, 42 is a shaft fixed to the lid frame 41, and 43 is a lid packing. The inner lid 39 is detachably and rotatably attached to the shaft 42.

Reference numeral 50 denotes an operation unit provided on the lid 30;
Is an operation sheet in the operation unit 50, 52 is a liquid crystal display window,
54 is an LED display window, 55 is a reservation setting window, and 56 is a touch key. The operation sheet 51 is exposed on the lid 30, and it is possible to set rice cooking reservations, menus, and the like from the upper surface while watching the display on the liquid crystal display window 52 and the like. 61 is a partition, and 62 is a back cover. The outline of the back cover 62 is made to have a similar structure to that of the partition wall 61. Reference numeral 70 denotes an operation board made of a printed board. Reference numeral 71 denotes a display mounted on the operation board 70 together with other circuit elements, and 72 denotes a plurality of lead wires derived from the operation board 70. The back cover 62 is pressed against the tip of the partition wall 61 by packing to hermetically accommodate the operation board 70 and the like inside. The lead wire 72 led out from the operation unit 50 passes near the hinge unit 31 and is connected to the power supply board 15 provided on the back surface of the main body 1.

Next, the rice cooking operation of the embodiment of the present invention having such a configuration will be described. After the ground rice and an appropriate amount of water according to the water level line 7a are put into the inner pot 7, the protruding pieces 8b,
The inner hook 7 is inserted into the main body 1 by engaging the recess 8c with the recesses 8d and 8e. After insertion, the inner lid 7 is covered with the inner lid 39, and the lid 30 is closed. Next, the cord reel 12 is pulled out, and the plug 14 is connected to a power outlet. Subsequently, the user operates the touch keys 56 on the operation sheet 51 of the operation unit 50 while watching the display on the liquid crystal display window 52 or the like on the surface of the lid 30 to set the meal time.

When the reserved rice cooking start time comes, the timer of the microcomputer operates and the switch is turned on, and the rice cooking heater 4 is energized. The radiant heat radiated from the rice cooker 4 provided at the lower part of the inner pot 7 heats the water and the rice inside, and the rice cooker starts.
The temperature of the water in the inner pot 7 starts to rise. When the temperature of the water starts to rise, the power supply of the drive motor 9 is energized, and the inner pot 7 starts to rotate quietly via the connecting mechanism 8 with the inner lid 39 closed. At the same time, the two tilt motors 22 are driven to rotate the cams 25 fixed to the output shafts 24, respectively, and gradually push down the two leg shafts 26 against the expanding force of the expansion spring 27. The depressed leg shaft 26 tilts the main body 1 and the tilt becomes about 15 to 20 degrees, and the rotation of the tilt motor 22 stops. As a result, the rice and water in the inner pot 7 that rotates with inclination move appropriately, and are uniformly heated by the radiant heat radiated from the rice cooker 4. When the tilt rotation of the inner pot 7 is performed for a predetermined time, the tilt motor 22 rotates in the reverse direction, the main body 1 is returned to the horizontal position, the rotation of the drive motor 9 is stopped, and the rice cooking in the horizontal state is continued again.

When the rice cooker advances and the water in the inner pot 7 decreases and the temperature rises sharply to reach the cooked temperature, the sensor 5 operates and the energization of the rice cooker 4 is automatically stopped.
Then, the rice is cooked in the inner pot 7, and the meal is started at the reserved time. When the push button 38 on the side surface of the lid 30 is pressed, the lid 3
0 is automatically rotated about the hinge shaft 32 as a fulcrum, the upper surface of the main body 1 is opened, and freshly cooked rice is served.

In the embodiment described above, the inner hook 7 is rotated by the drive motor 9 and the cam 25 is rotated by two tilt motors.
Has been described as an example in which the main body 1 is tilted by pressing down the leg shaft 26. However, the main body 1 may be rotated forward or backward by another driving source or provided at a position different from the legs. May be used for rotation and tilt. Further, although the sensor 5 is arranged at a position shifted from the connection mechanism 8, the sensor 5 may be incorporated in the connection mechanism 8. In addition, although the case where the inner pot 7 is tilted and rotated for a predetermined time has been described, the inner pot 7 may be intermittently repeated or the rotation time may be lengthened, and the tilt mechanism 20 and the rotation mechanism are not necessarily limited to the embodiment. is not.

[0016]

As described above, according to the present invention, a rice cooker is disposed on the inner bottom of an outer kettle mounted inside and a main body in which the inner kettle is interposed so as to be freely taken out, and one end of the main body is hinged. A lid is attached to the other end, a latch is attached to the other end, and an operation unit is provided on the upper surface, an opening / closing unit is opened / closed with a hinge as a fulcrum, and an inner lid is attached to cover the inner pot. In a jar rice cooker equipped with a control unit for controlling the temperature of the heater, etc., a motor is provided on the bottom of the main body, the inner pot is connected by a connecting mechanism, and a tilting mechanism is provided on the bottom face. A jar rice cooker was constructed in which the kettle was rotated at an angle. In addition, a jar rice cooker in which the tilting mechanism was also used for the legs of the main body was configured.

As a result, the conventional temperature distribution becomes non-uniform, and it is possible to prevent uneven cooking of the cooked rice. Even if the amount of cooked rice increases, the water in the inner pot moves due to the inclined rotation, so that the heat of the rice cooker is transmitted to the water in each section of the inner pot. As a result, the heat reaches the portion of the rice far from the rice-cooking heater, so that the whole can be cooked plumply and moderately. In addition, if the tilt mechanism is provided at the position of the leg of the main body so as to be used for both the tilt and the leg, the structure becomes simpler and the jar rice cooker with the tilt mechanism can be manufactured at low cost. . Therefore,
ADVANTAGE OF THE INVENTION According to this invention, the temperature distribution is uniform, there is no cooking unevenness, and a jar rice cooker with high rice cooking accuracy can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a configuration of an embodiment of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is an exploded perspective view of a connecting mechanism and a rotating mechanism according to the embodiment of the present invention.

FIG. 5 is an exploded perspective view of the tilting mechanism according to the embodiment of the present invention.

FIG. 6 is a side sectional view showing a configuration of a conventional jar rice cooker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 4 Rice-cooking heater 5 Sensor 7 Inner pot 8 Connection mechanism 8a Connection plate 8b, 8c Projection piece 8d, 8e Depression 9 Drive motor (rotation mechanism) 9a Output shaft 9b Holding frame 9c Fixing screw 9d Mounting column 18 Leg 20 Incline Mechanism 21 Mounting plate 22 Tilt motor 24 Output shaft 25 Cam 26 Leg axis 27 Expansion spring 28 Bearing 29 Disk part 30 Lid 39 Inner lid 50 Operation part

Continuation of front page (56) References JP-A-61-259611 (JP, A) JP-A-3-58220 (JP, U) JP-A-64-264416 (JP, U) JP-A-56-164717 (JP) , U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47J 27/00 101-105 A47J 27/14

Claims (2)

(57) [Claims] 1. A main body in which a rice cooker is disposed at the inner bottom of an outer kettle mounted inside, and the inner kettle is interposed so as to be able to be taken out, and one end of the main body is supported by a hinge and a latch is attached to the other end. A control body provided with an operation unit and having an inner lid attached and opened on a hinge as a fulcrum and covering the inner pot, and a control provided on a control board and including a microcomputer for controlling the temperature of the operation unit and the rice cooking heater, etc. In a jar rice cooker provided with a part, a rotating mechanism is provided on the bottom of the main body, the inner pot is connected by a connecting mechanism, and a tilting mechanism is provided on the bottom face, and the inner pot is tilted by the tilting mechanism and the rotating mechanism. Jar rice cooker characterized by rotating. 2. The jar rice cooker according to claim 1, wherein said tilting mechanism is also used as a leg of said main body.