JP4346588B2 - Rice washing equipment - Google Patents

Description

  The present invention is an automatic rice washing machine that automatically cleans and drains rice with water and water, and an automatic rice cooker that automatically cleans rice and cooks it with a rice cooker. It is about.

Conventionally, as an automatic rice washer, on the lower side of the case that houses the drive part of the rice washer, a rice washing tank having an upper end opening is arranged so that the front part of the upper end opening protrudes forward from the lower surface of the case, The portion of the upper end opening of the rice washing tank that protrudes forward from the lower surface of the case serves as a rice inlet for introducing rice into the rice washing tank, and the rice washing tank is disposed at the upper part on the center side of the rice washing tank. A rotating shaft that is driven to rotate about an axis, and a stirring rod fixed to the rotating shaft, the stirring rod extending from the rotating shaft to a radially outward side; A vertical rod portion extending downward along the inner surface of the rice washing tank from the extending end of the rod portion, and stirring bars having different lengths of the horizontal rod portions are spaced apart in the circumferential direction of the rotating shaft. The rice is agitated with a stir bar together with the water fed into the rice washing tank by rotating the rotating shaft. Automatic RICE machine is that so as to rice washing by (see Patent Document 1).
JP 11-239731 A

In the automatic rice washer, when the packed rice is put into the main body of the rice washing tank from the rice inlet to wash the next rice after the rice is washed, the rice with a long side paddle is introduced from the bottom of the case. If it is positioned so that it protrudes into the mouth, the horizontal part of the stirring bar becomes an obstacle, and it is difficult to push the packed rice bag into the main body of the washing tank from the rice inlet, and the packed rice is introduced from a high position. Then, there is a high possibility that the rice will spill out, and there is a possibility that the rice will splash on the stirring bar.
In particular, in the case where the recumbent portion of the stirring bar is disposed above the lower edge of the overflow port so that the water surface side of the washing water is not undulated, the recumbent portion is at the rice inlet in the vertical direction. It is located in a close position, and it is difficult to put packed rice if a long stirring rod with a long side is located below the rice inlet when the packed rice is introduced.

  Therefore, in view of the above problems, the present invention has an object to provide a rice washing apparatus in which packed rice is easily put into a rice washing tank without being an obstacle when the packed rice is introduced into a rice washing tank.

The technical means taken by the present invention to solve the technical problem is a rice washing apparatus for washing rice,
On the lower side of the case that houses the drive unit of the rice washing apparatus, a rice washing tank having an upper end opening is arranged so that the front part of the upper end opening protrudes forward from the lower surface of the case. The portion protruding forward from the lower surface of the case is used as a rice insertion port for introducing rice into the rice washing tank, and the rice washing tank is disposed on the center side of the rice washing tank and is driven to rotate about the vertical axis. A rotating shaft; and a stirring rod fixed to the rotating shaft. The stirring rod extends from the rotating shaft to the radially outer side, and extends downward from the extending end of the lying portion. The stirring rods having different lengths of the horizontal ribs are provided at intervals in the circumferential direction of the rotating shaft, and the rotating shaft is rotated and water is fed into the rice washing tank by the stirring rod. In the rice washing apparatus designed to wash the rice by stirring the rice with the water to be used,
Among the stirring rods having a horizontal rod portion protruding from the lower surface side of the case to the lower side of the rice inlet, when the rice is introduced, the shorter stirring rod of the horizontal rod portion is positioned below the rice inlet. Further, the stirring rod is stopped.

In addition, the stirring rod having a horizontal rod portion that protrudes from the lower surface of the case to the lower side of the rice inlet has a stirring rod with a long horizontal rod portion, a stirring rod with a short horizontal rod portion, and an intermediate length between them. It is preferable that the stir bar having the shortest horizontal portion is positioned below the rice inlet when the rice is introduced.
Also, the first and second stirring rods are provided with a long horizontal flange, and one of the first and second stirring rods extends to the opposite side of the other extending direction. It is preferable to arrange a short stirring rod with a short side portion to be positioned on the lower side of the first and second stirring rods in the middle in the circumferential direction of the rotation axis.

  According to the present invention, when the packed rice is introduced into the rice washing tank, the stirring rod does not become an obstacle and the packed rice can be easily introduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1 to FIG. 6, reference numeral 1 denotes an automatic rice washer that automatically cleans the rice and discharges the rice together with water and water. The automatic rice washer 1 is a bag of packed rice P. It is a packed rice P-compatible machine that allows all the parts to be added and washed.
The automatic rice washing machine 1 includes a frame 2, a case 3 attached and fixed to the upper part of the frame 2, a rice washing tank 4 attached and fixed to the lower surface side of the case 3, and supplies water into the rice washing tank 4. A water supply device 5 that stirs rice and water in the rice washing tank 4, and a mounting table 7 that is disposed below the rice washing tank 4 and attached to the lower part of the frame 2.

Between the rice washing tank 4 and the mounting table 7, a space is provided on the mounting table 7 where an inner pot of the rice cooker, other containers for receiving the washed rice, a rice cooker, or the like can be mounted.
The frame 2 extends forward from a pair of left and right columns 8 arranged at intervals in the left and right direction, a connecting member 9 that couples the lower ends of the left and right columns 8, and the lower ends of the left and right columns 8. Mainly composed of a pair of left and right support legs 10.
The case 3 mainly includes a bottom wall portion 11 and a cover body 12 that covers the drive portion K, the water supply pipes 53, 54, and the like disposed above the bottom wall portion 11.

The rear portion of the bottom wall portion 11 is fixedly attached to the upper end side of the left and right support columns 8 and protrudes forward from the left and right support columns 8.
The cover body 12 is formed from the left and right side walls 12a, the upper wall 12b, the front wall 12c, and the rear wall 12d so as to be open at the lower end, and is fixedly attached to the bottom wall portion 11.
The upper surface of the cover body 12 is a rice placing surface 13 used for placing the packed rice P, and the rice placing surface 13 extends in the front-rear direction in the front-rear direction in the left-right direction. In the case where the inclined surface 13a is moved downward, the inclined portion 13b is moved downward as the rear part goes to the middle in the front-rear direction across the left-right direction, and the packed rice P is placed on the rice placing surface 13 Since the front inclined surface 13a and the rear inclined surface 13b of the rice placing surface 13 serve as stoppers, the packed rice P can be stably placed on the rice placing surface 13.

Further, even when the packed rice P is stacked on the rice placing surface 13 in a plurality of stages, the packed rice P is bent so that the bottom side of the packed rice P placed on the rice placing surface 13 is convex downward. This prevents (or alleviates) the upper surface side of the packed rice P from being curved upwards, and a plurality of packed rice P can be stably stacked.
Further, when the packed rice P on the packed rice P placed on the rice placement surface 13 is taken forward so as to drag, the front inclined surface 13a of the rice placement surface 13 serves as a stopper, It is possible to prevent the packed rice P on the rice placement surface 13 from moving.

Further, the rear inclined surface 13b of the upper surface of the cover body 12 is steeper than the front inclined surface 13a, so that the packed rice P is easily pulled out forward and is not easily dropped backward. .
In the present embodiment, the rice placement surface 13 is V-shaped when viewed from the side, but the upper surface of the cover body 12 is divided into a front part, a rear part, and an intermediate part between them. The rear part may be inclined and the intermediate part may be flat. Moreover, you may form the upper surface of the cover body 12 in the concave shape dented in a mortar shape. Moreover, you may form so that the upper surface of the cover body 12 may become V shape seeing from a front.

As shown in FIGS. 4, 5, and 7 to 9, the rice washing tank 4 includes a rice washing tank main body 14 for containing rice and water and washing the rice by stirring them, and the rice washing tank main body. 14 is provided on the lower end side of the rice rinsing tank main body 14 and an overflow section 15 for draining impurities such as water on the water surface side of the rice washing water (sharp soup) in the tank 14 and dust floating on the rice washing water. 14 is provided with a drainage jacket 16 for draining washed rice water (sharp juice) from the lower end side.
This rice washing tank 4 is an overflow part-integrated rice washing tank 4 formed by integrally molding a rice washing tank body 14 and an overflow part 15 with resin.

If the overflow part 15 is formed separately from the rice washing tank main body 14 and is fixed to the rice washing tank main body 14, a joint between the rice washing tank main body 14 and the overflow part 15 is generated, which increases costs. There is a problem that it is troublesome to clean the portion or the like, and the shape of the overflow portion 15 can be limited. However, as in this embodiment, the rice rinsing tank main body 14 and the overflow portion 15 are integrally formed with resin. Thus, the problem can be solved.
The upper and lower ends of the rice washing tank main body 14 are open, and the lower portion of the rice washing tank main body 14 is a conical portion 17 formed in a conical shape that is tapered toward the lower end opening.

Further, the upper part of the rice washing tank main body 14 has a cylindrical part in which the lower part of the upper part is formed in a cylindrical shape having the same diameter as the upper end of the conical part 17 and extends upward from the upper end of the conical part 17. It is set to 18.
The upper rear portion 19 of the upper part of the rice washing tank main body 14 extends upward from the cylindrical part 18 and is formed in a substantially semi-cylindrical shape having the same diameter as the cylindrical part 18. The front portion is a bulging portion 20 formed so as to bulge from the cylindrical portion 18 toward the radially outward side (toward the front side) in plan view.

The bulging portion 20 is formed in a curved shape in which a cross section cut along a surface along the thickness direction of the rice washing tank main body 14 is convex outward.
A flange 21 is formed over the entire periphery of the upper end opening edge of the rice washing tank main body 14 so that most of the bulging portion 20 protrudes forward from the front surface (lower edge) of the cover body 12 of the case 3. The rear side of the flange 21 is fixedly attached to the bottom surface of the bottom wall portion 11 of the case 3.
A portion of the upper end opening portion of the rice washing tank main body 14 that protrudes forward from the front surface of the cover body 12 of the case 3 (a portion located in front of the cover body 12) is used for introducing rice into the rice washing tank 4. The rice inlet 22 is used.

  The rice inlet 22 is formed so as to protrude outward (to the front side) in the radial direction from the circumference having the center of the cylindrical portion 18 of the rice rinsing tank main body 14 as the center and the radius of the cylindrical portion 18 as the radius. Thus, the opening area of the rice inlet 22 is larger than the opening area when the rice inlet 22 is formed so as to have an arc shape with the radius of the arc on the rear side of the upper end opening of the rice washing tank body 14 as the radius. (The rice inlet 22 is formed more widely than the conventional rice washing tank 4), and is configured to facilitate the introduction of rice, particularly when the packed rice P is introduced. The bag mouth of the packed rice P is configured to be easily inserted into the rice washing tank main body 14 from the rice inlet 22.

Further, the rice inlet 22 is formed at a position lower than the rear part of the upper end opening of the rice rinsing tank main body 14, and the rice inlet 22 is lowered by that amount, and is easily accessible from the rice inlet during maintenance. It is configured as follows.
The rice slot 22 is closed by a lid 23 so as to be freely opened and closed.
The lid body 23 is made of resin, and the left and right upper portions on the rear side are pivotally supported on the side wall 12a of the cover body 12 of the case 3 via the pivot 24 so as to be rotatable about the left and right axes. By rotating the lid body 23 around, the lid body 23 swings up and down to open and close the rice inlet 22.

Further, the automatic rice washer 1 of the present embodiment is provided with a lid detecting means 25 for detecting opening and closing of the lid body 23.
The lid detection means 25 is composed of a detection unit 26 provided on the rice washing tank 4 side and a detected unit 27 provided on the lid 23 side. When the lid 23 is closed, the detection unit 26 is When the detection unit 27 is detected, and the detection unit 26 detects the detected unit 27, the stirring device 6 is allowed to be driven, and when the lid 23 is opened and the detected unit 27 moves away from the detection unit 26, the detection unit 26. However, the stirrer 6 is not driven by not detecting the detected portion 27.

In this way, it is possible to prevent erroneous detection by directly detecting the opening / closing of the lid 23.
In the present embodiment, a magnet switch including a switch unit as the detection unit 26 and a magnet unit as the detected unit 27 is employed as the lid detection unit 25.
In this embodiment, the overflow portion 15 is provided on the rear side of the upper portion of the rice rinsing tank main body 14 and on the left side from the center in the left-right direction. A rectangular overflow port 28 which is formed downward from the upper surface 21 and which is long in the vertical direction is formed.

The overflow portion 15 connects a pair of side walls 29 extending from the pair of side edges 28 a of the overflow port 28 along the radially outward direction of the upper part of the rice rinsing tank main body 14, and the extended ends of the pair of side walls 29. The bottom wall 31 extended from the lower edge of the upper portion of the rice rinsing tank main body 14 toward the radially outer side, and the lower surface side of the bottom wall 31. The bottom wall 31 is formed with a drainage hole 33 that communicates with the connection port 32.
The drainage jacket 16 is configured as a separate component from the rice rinsing tank main body 14, and is detachably attached to the lower end side of the rice washing tub main body 14 with mounting brackets.

The drainage jacket 16 is formed in a substantially cylindrical shape having a vertical axis, and the inside communicates with the lower end opening of the rice washing tank main body 14 through the upper end opening, and discharges the washed rice to the lower surface side. A rice draining port 34 is formed, and a drainage port 35 for draining the rice washing water in the rice washing tank main body 14 is formed in the peripheral wall portion.
The rice draining port 34 is closed by a rice draining valve 36 so as to be freely opened and closed.
The rice draining valve 36 is formed in a conical shape that becomes tapered as it goes upward, and is fixed to a lower end of a vertical valve rod 37 provided at the center of the rice washing tank 4.

The upper portion of the valve rod 37 penetrates the bottom wall portion 11 of the case 3 and is inserted into the case 3 and supported by an elevating means 38 provided in the case 3 so as to move up and down. As a result, the rice discharge valve 36 moves up and down, and the rice discharge port 34 is opened and closed.
The elevating means 38 includes a motor 39 and a swing arm 40 that swings up and down by the motor 39, and the upper end side of the valve rod 37 is attached to the tip end side of the swing arm 40.
The drainage jacket 16 is provided with a separation plate (not shown) having a large number of small holes through which water can pass but not through rice. This separation plate prevents the rice from flowing out from the drain port 35 while washing the rice. The water can be drained from the drain port 35 together with small impurities.

A drainage box 41 is disposed below the overflow portion 15 and obliquely to the left of the drainage jacket 16.
The drainage box 41 is formed in a box shape having an opening on the front side, and is disposed so that the opening faces diagonally to the left and is fixed to a bracket 44 attached to the support column 8. The opening 41 is closed by a lid 43 so as to be freely opened and closed.
A first inflow port 45 is provided on the upper surface side of the drainage box 41, and the first inflow port 45 is vertically arranged at the connection port 32 of the overflow portion 15, such as a flexible hose or a hard resin pipe. They are connected by a water pipe 46.

Further, a second inflow port 47 is provided on the right side surface of the drainage box 41. The second inflow port 47 is formed by a flexible hose or a hard resin pipe at the drainage port 35 of the drainage jacket 16. They are connected by a horizontal water distribution pipe 48.
In addition, a drain pipe part 49 is provided on the back side of the drain box 41, and the washing water in the drain box 41 is drained to an external drain part such as sewage through a hose connected to the drain pipe part 49. It is configured to be.
The drainage box 41 is provided with an on-off valve that allows the second inlet 47 to be opened and closed so as to allow or block the inflow of rice washing water from the drainage jacket 16. Closed to prevent the washing water from flowing from the drainage jacket 16 and opening the on-off valve during draining, the washing water in the washing tank 4 flows into the drainage box 41 through the drainage jacket 16 and the drainage box. It is drained from 41 to sewage.

The on-off valve in the drainage box 41 is driven to open and close by a motor 50 provided in the case 3.
A container detection hand 51 is provided in the middle of the right column 8 in the vertical direction, and a contact 51a of the container detection means 51 extends into a space between the rice washing tank 4 and the mounting table 7, and an inner pot or the like. Is placed on the mounting table 7 and the contact 51a comes into contact with the inner hook or the like, whereby it is detected that the inner hook or the like is set on the mounting table 7.
The water supply device 5 includes a pair of left and right watering members 52 attached to the bottom wall portion 11 of the case 3, and first and second water supply pipes 53 and 54 that supply water to the watering member 52. Yes.

The water sprinkling member 52 is formed in a spherical shape that protrudes downward from the plate material, and is formed by penetrating a large number of water sprinkling holes so that the supplied water is showered (diffused) from above into the washing tank body 14. Sprinkle water to supply.
The first water supply pipe 53 is disposed upward along the upper front side of the right column 8 and is inserted into the case 3 through the bottom wall 11 of the case 3. The lower end side of the first water supply pipe 53 is connected to a pressure water source such as a water supply via a hose or the like, and a manual on-off valve (main plug) 55 is connected to the first water supply pipe 53. And a flow meter 56, an electromagnetic on-off valve 57, and the like.

The second water supply pipe 54 has a connection port 58 connected to the upper end portion of the first water supply pipe 53 via a hose or the like, and branches from the connection port 58 to the left and right watering members. 52 has a pair of supply pipes for supplying water.
The stirring device 6 stirs the rice and water in the rice washing tank main body 14 by rotating with a rotating shaft 61 disposed at the upper center of the rice washing tank main body 14 and a motor 62 that drives the rotating shaft 61. And a stirring bar A.
The rotary shaft 61 is constituted by a cylindrical shaft having a vertical axis, and is disposed at the center of the rice washing tank main body 14 and below the bearing member 63 fixed to the bottom wall portion 11 of the case 3. The bearing member 63 is supported so as to be rotatable about the vertical axis.

A driven gear 64 made of a bevel gear is disposed above the bearing member 63. The driven gear 64 is supported by the bearing member 63 so as to be rotatable about a vertical axis and is integrally rotated with the rotary shaft 61. It is connected freely.
The valve rod 37 is inserted through the rotary shaft 61, the bearing member 63, and the driven gear 64 so as to be movable up and down.
A drive gear 65 comprising a bevel gear meshing with the driven gear 64 is attached to the output shaft of the motor 62, and the driving force of the motor 62 is transmitted to the rotating shaft 61 by the driving gear 65 and the driven gear 64. Is driven to rotate.

In the present embodiment, the stirring bar A is composed of a total of six bars of the first to fifth five stirring bars A1 to 5 and one auxiliary stirring bar A6, but is not limited thereto. There is nothing.
The first to fifth stirring rods A1 to A5 are a horizontal flange 66 extending radially outward from the rotation shaft 61, and a vertical flange extending downward from the extending end of the horizontal flange 66. 67.
Among the first to fifth stirring rods A1 to A1, the first to fourth stirring rods A1 to A4 are arranged at equal intervals (90 in the circumferential direction of the rotary shaft 61 so that the horizontal flange 66 is at the same height position. Are arranged at intervals.

Further, the horizontal flange portions 66 of the first and second stirring rods A1 and A2 are formed to have substantially the same length, and one of them extends to the opposite side to the other extending direction, and the rice washing tank main body 14 respectively. It extends to the vicinity of the inner surface.
The horizontal bar 66 of the third stirring bar A3 is arranged in the middle of the horizontal bar 66 of the first and second stirring bars A1, A2, and the horizontal bar 66 of the first and second stirring bars A1, A2. The horizontal stirring part 66 of the fourth stirring bar A4 is formed to be shorter than the horizontal stirring part 66 of the third stirring bar, and the first and second stirring bars It arrange | positions so that it may extend in the direction opposite to the extension direction of the horizontal collar part 66 of the 3rd stirring bar A3 in the middle of the horizontal collar part 66 of bar | burr A1, A2.

The fifth stir bar A5 has a recumbent portion 66 positioned lower than the recumbent portion 66 of the first to fourth stir bars A1 to 4, and the second stir bar A2 and the fourth stir bar A5. It is arrange | positioned between bar | burr A4, and the length of the recumbent part 66 is formed in length shorter than the recumbent part 66 of 4th stirring bar A4.
Therefore, of the first to fifth stirring rods A1 to A5, the horizontal bar 66 of the first and second stirring bars A1 and A2 is the longest, and then the horizontal bar 66 of the third stirring bar A3 is long. Then, the horizontal bar 66 of the fourth stirring bar A4 is long, and the horizontal bar 66 of the fifth stirring bar A5 is the shortest.

Moreover, when the stirring rods A1 to 4 are positioned on the front side, the recumbent portion 66 of the first to fourth stirring rods A1 to A4 is from below the case 3 to the lower side of the rice inlet 22 in a plan view. It has a length that protrudes (extends), and the horizontal flange 66 of the fifth stirring rod A5 is formed to have a length hidden under the case 3 in plan view.
Further, the recumbent portion 66 of the first to fourth stirring rods A1 to A4 is positioned in the middle in the vertical direction of the rotating shaft 61 and higher than the lower edge of the overflow port 28, and the first to fourth stirring rods A1 to A4. It is considered that when the stirring rods A1 to A4 are rotated, the water surface side of the washed rice water is not swollen by the horizontal flange 66.

Further, if the recumbent portion 66 is below the surface of the washing water, there is a problem that the rice remains on the recumbent portion 66. However, the recumbent portion 66 of the stirring rods A1 to A4 is placed below the overflow port 28. By arranging it at a position higher than the edge, the generation of residual rice is prevented.
In addition, since the length of the horizontal pad 66 of the fifth stirring bar A5 is short, there is not much influence even if it is below the surface of the washing water.
The vertical rod portion 67 of the first to fifth stirring rods A1 to A5 includes a vertical portion 67a extending downward from the extending end of the horizontal rod portion 66 along the inner surface of the cylindrical portion 18 of the rice rinsing tank main body 14, and the vertical portion 67a. It consists of the inclined part 67b extended along the conical part 17 inner surface of the rice washing tank main body 14 from the lower end of the vertical part 67a.

  In addition, the height position of the lower end portion of the vertical rod portion 67 of the first to fifth stirring rods A1 to A5 is the lowest at the lower end of the vertical rod portion 67 of the first stirring rod A1, and the first stirring rod A1 The lower end position of the vertical rod portion 67 of the second stirring rod A2 is higher than the lower end position of the vertical rod portion 67, and the third stirring rod A3 is lower than the lower end position of the vertical rod portion 67 of the second stirring rod A2. The lower end position of the vertical rod portion 67 is higher, the lower end position of the vertical rod portion 67 of the fourth stirring rod A4 is higher than the lower end position of the vertical rod portion 67 of the third stirring rod A3, and the fourth stirring rod. The lower end position of the vertical rod portion 67 of the fifth stirring bar A5 is higher than the lower end position of the vertical rod portion 67 of A4.

In addition, the recumbent part 66 of the first to fifth stirring bars A1 to A5 does not have to be horizontal, and is inclined to move downward as it goes radially outward from the rotating shaft 61. Also good.
The sub stir bar A6 is disposed between the first stir bar A1 and the third stir bar A3, extends linearly downward from the rotary shaft 61 from the upper side to the lower end side, and at the lower end side. It is bent along the upper surface of the rice removal valve 36.
The sub-stirring bar A6 can suitably stir the rice on the lower end side of the rice washing tank main body 14 at the time of washing the rice, and after washing the rice, when the rice discharge valve 36 is opened and the rice and hydrated water are discharged, the stirring bar A is used. By opening the rice drain valve 36 while rotating, it is possible to drain rice while loosening the rice clogged at the lower end side of the rice washing tank main body 14, and it is possible to prevent residual rice from being produced on the rice drain valve 36.

A drive unit K is constituted by a motor 50 that drives an on-off valve in the drainage box 41, an elevating means 38 that raises and lowers the rice drain valve 36, and a drive mechanism that rotationally drives the stirring rod A.
A control device 68 for controlling the automatic rice washer 1 is provided in the case 3, and a control panel 69 for inputting the amount of rice to be introduced into the rice washing tank 4 to the control device 68 on the front side of the cover body 12. By supplying rice, closing the lid 23, and pressing a start switch provided on the control panel 69, water is supplied into the rice washing tank main body 14 and the agitator 6 is driven to drive the rice. Is agitated and washed (detailed rice washing process will not be described), and after washing, an amount of water is supplied according to the amount of rice input. It is automatically controlled to be discharged.

In this automatic rice washing machine 1, after the rice is washed, when the packed rice P is introduced into the rice washing tank main body 14 from the rice introduction port 22 in order to wash the next rice, the long stirring rod A1 of the horizontal paddle portion 66 is used. , A2 is positioned so as to protrude from the lower surface of the case 3 to the lower side of the rice inlet 22, the side pad 66 of the stirring rods A 1, A 2 becomes an obstacle and the bag of packed rice P is introduced into the rice It is difficult to pour into the rice rinsing tank main body 14 from the mouth 22, and when the packed rice P is introduced from a high position, there is a high possibility that the rice will spill out and the rice may be scattered on the stirring rods A1 and A2.
In particular, in the automatic rice washer 1 of the present embodiment, the horizontal flange 66 of the first to fourth stirring rods A1 to A4 is disposed above the lower edge of the overflow port 28, so the vertical direction When the packed rice P is introduced, if the long stirring rods A1 and A2 of the recumbent portion 66 are located below the rice inlet 22 when the packed rice P is introduced, the packed rice P There is a problem that it is difficult to put.

Therefore, in the automatic rice washer 1, when the rice is introduced, the stirring rod A4 having the shorter side pad 66 of the first to fourth stirring rods A1 to A4 is positioned below the rice introduction port 22. A stir bar detecting means 70 for detecting the position of the stir bar A4 is provided to stop the stir bar A4 (so as to come to the front side).
The stirring rod detection means 70 is mainly composed of a detected member 71 that rotates together with the stirring rod A, and a detector 72 that detects the detected member 71. The detected member 71 is a driven member in the present embodiment. The detector 72 is provided in the gear 64 and is disposed in the case 3.

When the detector 72 detects the detected member 71, a detection signal is sent to the control device 68. When the stirring device 6 is stopped by a stop signal from the control device 68, the detector 72 is detected. The stirring device 6 is set to stop based on the detection signal of the detected member 71 sent from the control device 68 to the control device 68.
In the present embodiment, as shown in FIG. 7, when the fourth stirring rod A4 having the shortest recumbent portion 66 is positioned on the front side among the first to fourth stirring rods A1 to A4, the stirring device 6 is configured to stop.

When the stirring rod A is stopped, the recumbent portion 66 of the fourth stirring rod A4 does not have to face directly in front, and is slightly left and right as shown in FIGS. The long stirring rods A1 and A2 of the recumbent portion 66 need only be hidden under the case 3, and the long recumbent portion of the long stirring rods A1 and A2 of the recumbent portion 66 may be shifted. The extending end side of 66 may protrude slightly below the rice inlet 22, and the horizontal bar part 66 of the long stirring rods A 1, A 2 of the horizontal bar part 66 is an obstacle to the rice input of the packed rice P It only has to be such that it does not become.
In addition, when the stirring rod A is stopped, it is not always necessary to stop the stirring rod A4 having the short rib portion 66 so that the stirring rod A4 is positioned on the front side (for example, when the stirring rod A is stopped in the middle of washing the rice). When the stirring device 6 is stopped at the final stage from the start of stirring to the removal of rice, the short stirring rod A4 of the recumbent portion 66 is stopped on the front side. What is necessary is just to be comprised (that is, it should just be comprised so that the short stirring rod A of the horizontal reed part 66 may be located in the lower side of the rice insertion port 22 when the packed rice P is thrown in).

Further, when the stirring rod A3 of the second short recumbent portion 66 does not become an obstacle to the introduction of the packed rice P, the stirring rod A3 of the second short recumbent portion 66 is placed below the rice input port 22. You may make it stop.
In addition, the stirrer bar A4 of the shortest horizontal paddle part 66 and the stirrer bar A3 of the second shortest horizontal paddle part 66 are arranged next to each other in the circumferential direction of the rotary shaft 61, and they interfere with the introduction of the packed rice P. You may make it stop in the position which does not become and the lower position of the rice insertion slot 22. FIG.
Further, when the stirring rod A stops, there is a time lag due to inertial force from when the control device 68 issues the stirring rod stop signal to when the stirring rod A stops, and this time lag is taken into consideration. The detection position is set, and the inertial force varies depending on various factors such as a difference in resistance depending on the type of rice and the amount of rice, a difference in frequency, a difference in machine body, and an individual difference in parts. In order to stop at the position, it is preferable that a circuit for adjusting the time until the stirring rod stop signal is issued after receiving the detection signal is provided in the control device 68, and a function for setting the time is provided in the control panel 69.

The arrangement position of the detected member 71 is not limited and may be provided on a member that rotates together with the stirring rod A.
Although any sensor may be employed as the stirring rod detection means 70, a magnet switch is employed in the present embodiment.
Moreover, the said rice washing tank main body 14 may be formed in the whole cone shape, and the upper part of the rice washing tank main body 14 may be formed in a cylindrical shape entirely, without providing the bulging part 20. .

It is a front view of an automatic rice washing machine. It is a side view of an automatic rice washing machine. It is a top view of an automatic rice washing machine. It is front sectional drawing of the principal part of an automatic rice washing machine. It is side surface sectional drawing of the principal part of an automatic rice washing machine. It is a side view of the upper part of an automatic rice washing machine. It is a top view of a rice washing tank. It is a perspective view of a rice washing tank. FIG. 8 is a cross-sectional view taken along line AA in FIG. 7. It is a top view which shows another form of the stop state of a stirring rod.

Explanation of symbols

3 Case 4 Rice Washing Tank 22 Rice Feed Port 61 Rotating Shaft 66 Horizontal Shaft 67 Vertical Shaft A1 Stir Bar A2 Stir Bar A3 Stir Bar A4 Stir Bar K Drive Unit

Claims (3)

A rice washing apparatus for washing rice,
On the lower side of the case (3) that houses the drive part (K) of the rice washing device, the upper part of the rice washing tank (4) is projected forward from the lower surface of the case (3). The portion that protrudes forward from the lower surface of the case (3) of the upper end opening of the rice washing tank (4) is used as a rice inlet (22) for introducing rice into the rice washing tank (4), and the rice washing tank ( 4), a rotating shaft (61) disposed on the center side of the rice washing tank (4) and driven to rotate about an axis in the vertical direction, and a stirring rod fixed to the rotating shaft (61) A), and the stirring rod (A) includes a recumbent portion (66) extending radially outward from the rotating shaft (61) side, and an extending end of the recumbent portion (66). And a stir bar (A) having a different length of the horizontal flange (66) with a gap in the circumferential direction of the rotating shaft (61). In rice washing apparatus designed to rice washing by have provided, stirring the rice with water, which is water in the rice washing tank (4) in the rotated rotation axis (61) with stir bar (A),
Of the stirring rod (A) having a horizontal rod portion (66) of a length protruding from the lower surface side of the case (3) to the lower side of the rice input port (22), the horizontal rod portion (66) is short when the rice is charged. The rice washing apparatus characterized in that the stirring rod (A) is stopped so that the other stirring rod (A4) is positioned below the rice inlet (22).   The stirring rod (A) having a horizontal reed portion (66) of a length protruding from the lower surface side of the case (3) to the lower side of the rice inlet (22) has a long horizontal reed portion (66). A2), a stir bar (A4) having a short horizontal bar (66), and a stir bar (A3) having a horizontal bar (66) having an intermediate length between them. The rice washing apparatus according to claim 1, wherein the shortest stirring rod (A4) of the section (66) is positioned below the rice inlet (22).   The horizontal reed part (66) is provided with long first and second stirring rods (A1, A2), one of the first and second stirring rods (A1, A2) extending in the opposite direction to the other extending direction. The stirrer bar (A4) having a short rib portion (66) to be positioned below the rice input port (22) when the rice is introduced is connected to the first and second agitation bars (A1, A2). The rice washing apparatus according to claim 1, wherein the rice washing apparatus is disposed in the middle of the circumferential direction of the rotating shaft (61).

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