JPH0544009U - Fully automatic rice cooker - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fully-automatic rice cooker in which the weight for moving the shut-off valve (plug) up and down is reduced and the motor is downsized. [Structure] A rice washing section 2 for washing rice and water with stirring blades 23, a rice cooking section 5 for cooking washed rice with a predetermined amount of water, and a shielding state for the rice washing section 2 and the rice cooking section 5. Alternatively, it is provided with a plug 34 which is in a communication state and a transfer motor 43 which moves only the plug 34 up and down.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fully-automatic rice cooker that integrates the rice washing and rice cooking processes.

[0002]

[Prior Art]

 Conventionally, this type of fully-automatic rice cooker has been equipped with a rice washing section for washing rice and a rice cooking section for supplying a predetermined amount of water to the washed rice to cook the rice. The thing by the flow is adopted. Then, in order to transfer the rice washed in the rice washing section to the rice cooking section, raise the entire lid of the rice washing pot equipped with the shutoff valve (plug) to bring the rice washing section and the rice cooking section into communication with each other. It was sent using water. That is, the conventional fully-automatic rice cooker has a structure in which the shut-off valve is moved up and down, and as shown in FIG. 5, rice is washed on the lid (elevation plate) 100 of the rice washing pot to drive the rotating shaft 102 of the stirring blade 101 to rotate. The motor 103 is installed, and the lid 100 moves up and down by the rotation of the cams 104, 104 provided in the rice cooker body. When the lid 100 is lowered, the shut-off valve 105 is lowered to shield the rice cooking part and the rice washing part, and when the lid 100 is raised, the rice cooking part and the rice washing part are communicated with each other.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional fully automatic rice cooker, since the shutoff valve 105 and the lid 100 of the rice washing pot are integrated and the lid 100 has the rice washing motor 103 and the like, the weight of the portion to be moved up and down is increased. However, when driving the cam 104, there is no choice but to use a motor having a large torque, and there is a problem that the motor becomes large. Also, if the center of vertical movement of the shutoff valve 105 shifts, it is difficult for the shutoff valve 105 to maintain the shielding state between the rice cooking section and the rice washing section, and a large amount of water leaks from the shutoff valve 105 during rice washing. There was a problem.

Therefore, the present invention has been made in consideration of the above circumstances, and an object thereof is to reduce the weight for moving the shut-off valve (plug) up and down to downsize the motor. To provide a fully automatic rice cooker. Another object of the present invention is to provide a fully automatic rice cooker with improved stopper sealing performance.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the fully-automatic rice cooker according to the present invention comprises a rice washing section for washing rice and water while stirring with a stirring blade, and a washed rice with a predetermined amount of water. It is provided with a rice cooker for cooking rice, a stopper for bringing the rice washing and rice cookers into a shielded state or a communicating state, and a drive means for vertically moving only this stopper. Further, it is preferable that the stopper has a weight and a load be applied when washing the rice. Further, it is preferable to provide a guide member for moving up and down while maintaining the center of the stopper in the transfer pipe from the rice washing section to the rice cooking section.

[0006]

[Action]

 In the present invention having the above configuration, when the rice and water are transferred from the rice washing section to the rice cooking section, the rice washing section and the rice cooking section can be easily brought into communication by raising only the stopper. Also, by providing a weight on the stopper, rice and water will not leak from the stopper when washing rice. Further, since a guide member for raising and lowering while maintaining the center of the stopper is provided in the transfer pipe, a delicate centering work is unnecessary.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows an embodiment of a fully automatic rice cooker according to the present invention. As shown in the figure, the fully-automatic rice cooker of the present embodiment has a pull-out type rice input section 1 for inputting rice, a rice washing section 2 for washing rice and water while stirring, and a washed rice. The rice cooking unit 5 is configured to cook rice using a predetermined amount of water. As shown in FIG. 4, a drawer 10 is attached to the rice feeding part 1 so as to be able to be pulled out and pushed in the direction of the arrow, and a rice storage chamber 11 is provided at the tip of this drawer 10. A shutter 12 is provided at the bottom of the rice storage chamber 11 so that it can be opened and closed, and the shutter 12 is closed by the biasing force of a spring 13. The shutter 12 has a projecting piece 12a for opening and closing for abutting and opening the jig 6 provided on the rice cooker body when the drawer 10 is pushed.

In FIG. 1, the rice washing section 2 includes a rice washing outer pot 21 installed in the rice washing device 20, a rice washing inner pot 22 integrally formed inside the rice washing outer pot 21, and an inside of the rice washing inner pot 22. It has a stirring blade 23 rotatably inserted therein and a receiving port 24 for receiving the rice transferred from the rice storage chamber 11. A nozzle 25 for supplying water is provided in the inner rice washing pot 22, and the washed water and dust pass through the peripheral wall of the inner rice washing pot 22, but the rice does not pass through it. The draining net 22a is attached, and the water is drained from the draining net 22a to the rice washing outer pot 21. Further, at the center of the bottom portion of the inner rice washing pot 22 is formed a pipe port 26 that penetrates the outer rice washing pot 21 to reach the rice cooking unit 4.

The stirring blade 23 has a cross-shaped blade attached to a rotating shaft 27, and the rotating shaft 27 is rotated by driving a rice-washing motor 30. That is, the torque of the rice washing motor 30 is transmitted to the stirring blade 23 by meshing the gear 32 attached to the motor shaft 31 with the gear 33 attached to the rotating shaft 27 of the stirring blade 23. Further, a disk-shaped stopper 34 having taper formed on both upper and lower surfaces is attached to the lower portion of the rotary shaft 27, and an O-ring 35 is fitted on the outer periphery of the stopper 34. Here, the stopper 34 is provided with a bearing 36 so as not to rotate at the same time as the stirring blades 23 during washing the rice, and a stopper plate 37 is fixed to the stopper 34 so that the bearing 36 does not fall out when the stopper 34 moves up and down. There is.

Further, since the rotating shaft 27 of the stirring blade 23 is pressed by the weight 38 provided on the upper portion of the rice-washing middle gear 33, the rotating shaft 27 is stopped by the stopper 34 so that force is not applied to the stopper 34 as much as possible. A ball 39 is arranged at a contact portion with the tip of the rotating shaft 27. The weight 38 is designed to prevent the rice and water from leaking during the rice washing by applying a load to the O-ring 35 and the stopper 34 even when the rice to be washed is small. When the stopper 34 is moved up and down, a pointed protrusion 40 is formed on the bottom of the stopper 34 as shown in FIG. 2 in order to maintain the center, and the protrusion 40 is attached to the transfer pipe 41. Centering is performed by the guide jig 42.

The rotating shaft 27 of the stirring blade 23 moves up and down by driving a transfer motor 43 as a driving means. That is, the worm wheel 44 is attached to the shaft of the transfer motor 43, and the worm wheel 44 and the worm 45 attached to the rotary shaft 27 mesh with each other to transmit the driving force of the transfer motor 43 to the rotary shaft 27. .. The worm 45 is provided with bearings 46 and 47 for smoothly moving the rotating shaft 27 up and down, and a worm guide 48 is mounted so that the rotating shaft 29 can be moved vertically. Similarly to the bearings 46 and 47, the bearing 49 is also for smoothly moving the rotating shaft 27 up and down.

Next, the operation of this embodiment will be described. First, the drawer 10 is pulled out to the front (to the left in FIG. 3), and a predetermined amount of cooked rice is put into the rice storage chamber 11. After that, the drawer 10 is pushed in, the opening / closing projection 12a comes into contact with the jig 6 and gradually opens the shutter 12 against the urging force of the spring 13, and finally becomes the fully opened state. Then, the rice in the rice storage chamber 11 is transferred to the rice washing unit 2.

In the rice washing unit 2, the transferred rice enters the rice washing inner pot 22 through the receiving port 24. Here, since the inside of the rice washing unit 2 is completely closed by the stopper 34 and the O-ring 35, the rice does not fall from the rice washing unit 2. The rice in the rice-washing pot 22 is washed with water supplied from the nozzle 25 and a stirring blade 23 rotated by a rice-washing motor 30. The water that has been washed is drained from the draining net 22a provided at the bottom of the inner rice washing pot 22 through the outer rice washing pot 21 and the drain pipe.

After rinsing the rice several times, the rinsing starts. At this stage, water is supplied from the nozzle 25 and the stirring blade 23 is not rotated. During the rinsing, dust and the like remaining on the rice is discharged from the upper part of the inner rice washing pot 22 through the outer rice washing pot 21. Then, after rinsing several times, the transfer motor 43 is driven to raise the stopper 34 by the worm wheel 44 and the worm 45, and the washed rice is transferred to the rice cooker 5 by the water supplied from the nozzle 25. Next, when this transfer is completed, the stopper 34 is lowered again to bring the rice washing unit 2 and the rice cooking unit 5 into a shielded state.

As described above, according to the present embodiment, when the rice and water are transferred from the rice washing unit 2 to the rice cooking unit 5, only the stopper 34 is lifted to facilitate the washing unit 2 and the rice cooking unit 5. Can be in communication. As a result, the weight for moving the plug 34 up and down can be reduced. Further, since the weight 38 is provided on the top of the gear 33 and the load is applied to the O-ring 35 and the stopper 34 even when there is little rice to be washed, rice and water do not leak even during washing. Further, since the projection 40 is formed on the bottom of the stopper 34 and the guide jig 42 is attached to the transfer pipe 41, the stopper 34 can be moved up and down while maintaining the center thereof, and a fine centering operation can be performed. It becomes unnecessary.

[0016]

[Effect of the device]

 As described above, according to the fully-automatic rice cooker of the present invention, when the rice washing part and the rice cooking part are shielded or in communication, only the stopper is moved up and down, which reduces the weight and reduces the motor size. The structure can be simplified and the structure can be simplified. In addition, by providing a weight on the stopper, rice and water do not leak from the stopper during rice washing and the sealing performance is improved. Further, since the guide member for raising and lowering while maintaining the center of the stopper is provided on the transfer pipe, the work of delicate centering is unnecessary, and it is possible to prevent a large amount of water leakage due to center shifting. ..

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a fully automatic rice cooker according to the present invention.

FIG. 2 is a perspective view showing a stopper and a transfer pipe of FIG.

FIG. 3 is a schematic diagram showing the overall configuration of the fully automatic rice cooker of FIG. 1.

FIG. 4 is a schematic view showing the drawer of FIG.

FIG. 5 is a schematic view showing a rice washing section of a conventional fully automatic rice cooker.

[Explanation of symbols]

 1 Rice Input Section 2 Rice Washing Section 5 Rice Cooking Section 10 Drawer 11 Rice Storage Room 20 Rice Washer 21 Rice Washing Outer Kettle 22 Rice Washing Inner Kettle 23 Stirring Blade 24 Receptacle 25 Nozzle 27 Rotating Shaft 30 Rice Washing Motor 34 Stopper 38 Weight 42 Guide Tool 41 transfer pipe 43 transfer motor (driving means)

Claims (3)

[Scope of utility model registration request] 1. A rice washing section for washing rice and water with stirring blades, a rice cooking section for cooking the washed rice with a predetermined amount of water, and a state in which the rice washing section and the rice cooking section are shielded or in communication. A fully-automatic rice cooker comprising a stopper to be in a state and a drive means for moving only this stopper up and down. 2. The fully automatic rice cooker according to claim 1, wherein the stopper has a weight to apply a load when washing the rice. 3. The fully-automatic rice cooker according to claim 1, wherein the transfer pipe from the rice washing unit to the rice cooking unit is provided with a guide member for moving up and down while maintaining the center of the stopper.