JP2016159189A - Rice washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooking washer capable of preventing it effectively that rice to be fed to a rice cooker is left in a rice washing tank for washing the rice to be fed to a rice cooker.SOLUTION: A rice cooking washer comprises: a rice washing tank 3 having a hopper-shaped lower portion; and four agitation rods 17a, 17b, 17c and 17d for agitating rice and water in the rice washing tank 3. Of the agitation rods, the agitation rods 17a and 17b positioned at least on the outermost side are positioned in the vicinity of a hopper-shaped oblique inner wall face 30 of the rice washing tank 3, and have a shape along the whole area of the oblique internal surface 30 of the rice washing tank 3.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a rice-washing machine for rice cooking that prepares rice by washing from washing rice to adding water.

  A rice washing treatment in which a required amount of rice is received in a washing rice tank and fed and stirred, a rice soaking treatment that intermittently sprinkles the washed rice, and a water treatment treatment that supplies rice cooking water to the rice that has been soaked soaking. A rice-washing machine for rice cooking that prepares rice by a series of automatic controls is known.

  Japanese Patent Application Laid-Open No. 11-244712 (Patent Document 1) injects water from a water supply unit disposed in the upper part of a rice washing tank, and a flow rate sensor and a water supply electromagnetic valve are provided in the water supply unit, and water supply electromagnetic is based on the flow rate sensor. Disclosed is a rice washer that can adjust the amount of water to be adjusted by controlling the valve for metering.

  However, the water supply unit of the rice washing machine disclosed in Patent Document 1 may retain water until the water spout when the water supply electromagnetic valve is closed. Since the amount of water supply / adjustment is affected, there is a problem that even if the water addition / reduction process is performed by the metering control based on the flow rate sensor, the water supply amount varies.

  Therefore, JP 2012-240016 A (Patent Document 2) uses a lower water supply pipe to supply water from the lower part of the rice washing tank, and causes the water distribution pipe at the upper height position of the rice washing tank to communicate with the lower water supply pipe. Has proposed a rice-washing machine for rice cooking that can be adjusted with high accuracy.

Japanese Patent Laid-Open No. 11-244712 JP2012-240016A

  According to Patent Document 2, it is possible to accurately add water and secure the desired rice cooking conditions, but after washing the rice, the rice washed from the inner wall of the rice washing tank or from the rice washing tank The rice grains on the upper surface of the rice discharge valve for supplying the rice cooker to the rice cooker and the upper part of the stirring rod for mixing the rice and water in the rice washing tank remain.

  Therefore, an object of this invention is to provide the rice washing machine for rice cooking which can prevent effectively a rice grain remaining in the rice washing tank which wash | cleans the rice which should be supplied to a rice cooker.

  An object of the present invention is to provide a rice washing tank having a hopper-like lower part and a plurality of stirring rods for stirring rice and water in the rice washing tank, and at least the outermost stirring of the plurality of stirring rods. A rice washing machine for rice cooking, characterized in that the rod is located in the vicinity of the diagonal inner wall surface forming the hopper shape of the rice washing tank and has a shape along the entire surface of the diagonal inner wall surface of the rice washing tank. Achieved by:

  According to the present invention, among the plurality of stirring rods, at least the outermost stirring rod is located in the vicinity of the diagonal inner wall surface that forms the hopper shape of the rice washing tank, and on the entire diagonal inner wall surface of the rice washing tank. Since it has the shape which followed, it becomes possible to prevent effectively that a rice grain adheres to the diagonal inner wall face of a rice washing tank, and it remains in a rice washing tank.

  In a preferred embodiment of the present invention, among the plurality of stirring rods, two or more stirring rods are located in the vicinity of the diagonal inner wall surface of the rice washing tank that forms the hopper shape, and It has a shape along the entire surface of the wall.

  In a further preferred embodiment of the present invention, a gap between at least the outermost stirring rod among the plurality of stirring rods and the oblique inner wall surface of the rice washing tank is set to 10 mm to 15 mm.

  In a preferred embodiment of the present invention, among the plurality of stirring rods, at least the outermost stirring rod has a length equal to or greater than the length of the oblique inner wall surface of the rice washing tank.

  In a preferred embodiment of the present invention, the rice washing tank has a rice draining valve for dropping the rice after washing into the rice cooker at the lower end, and is located at least on the outermost side among the plurality of stirring rods. A lower end portion of the stirring rod is bent inward so as to face the rice removal valve and extends in the vicinity of the rice removal valve.

  According to this preferred embodiment of the present invention, among the plurality of stirring rods, at least the outermost stirring rod is located in the vicinity of the diagonal inner wall surface forming the hopper shape of the rice washing tank, and the rice washing tank is inclined. Since it has a shape along the entire inner wall surface, it can effectively prevent the rice grains from adhering to the slant inner wall surface of the rice washing tank and remaining in the rice washing tank, and at least most The lower end of the stirring rod located on the outside is bent inward so as to face the rice draining valve and extends in the vicinity of the rice draining valve. And it becomes possible to prevent effectively remaining in a rice washing tank.

  In a further preferred embodiment of the present invention, the plurality of stirring rods extend obliquely downward from an attachment portion to a rotating shaft toward the upper end portion of the oblique inner wall surface of the rice washing tank.

  According to this preferred embodiment of the present invention, since the plurality of stirring rods extend obliquely downward from the attachment portion to the rotating shaft toward the upper end portion of the oblique inner wall surface of the rice washing tank, the upper surface of each stirring rod Even if the rice grains adhere to the part, by rotating each stirring rod, the rice grains can be peeled off from the upper surface part of the stirring rod, and the rice grains adhere and remain on the upper surface part of the stirring rod of the rice washing tank. This can be effectively prevented.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the rice washing machine for rice cooking which can prevent effectively that a rice grain remains in the rice washing tank which wash | cleans the rice which should be supplied to a rice cooker.

FIG. 1 is a schematic front view of a rice cooker according to a preferred embodiment of the present invention. FIG. 2 is a schematic side view of a rice cooker equipped with the rice cooker shown in FIG. FIG. 3 is a schematic longitudinal side view of the rice washing tank section. FIG. 4 is a schematic enlarged front view showing details of the stirring rod. FIG. 5 is a schematic plan view of the water supply unit. FIG. 6 is a schematic longitudinal sectional view showing the structure of a drain hose attached to the drain port of the drain box. FIG. 7 is a block diagram showing a control system, a detection system, a drive system, a display system, and an input system of a rice cooker equipped with a rice cooker according to a preferred embodiment of the present invention shown in FIGS. is there. FIG. 8: is a step figure which shows operation performed by the rice-washing machine for rice cooking provided with the rice cooker with time. FIG. 9: is a schematic perspective view of the drain box vicinity of the rice-washing machine provided with the rice cooker concerning another preferable embodiment of this invention. FIG. 10 is a schematic side view of a drain valve driving mechanism of a rice washing machine equipped with a rice cooker according to still another preferred embodiment of the present invention. FIG. 11 is a schematic side view showing details of a main part of the drain valve driving mechanism shown in FIG.

  FIG. 1 is a schematic front view of a rice cooker equipped with a rice cooker according to a preferred embodiment of the present invention, and FIG. 2 is a schematic side view thereof.

  As shown in FIG. 1 and FIG. 2, in the rice washing machine equipped with the rice cooker according to the present embodiment, a rice washing machine comprising a rice storage tank 2 and a rice washing tank 3 is movably supported, and a plurality of rice washing machines are provided below the rice washing machine. Rice cookers 5 and 5 are arranged.

  The rice washing machine is configured by integrally connecting a rice storage tank 2 provided on the upper part of the support machine frame 1 so as to be laterally movable, and a rice washing tank 3 having a water supply / drainage part attached to the lower part of the rice storage tank 2. .

  A plurality of rice cookers 5 are arranged below the rice washing tank 3 at intervals, and are composed of a rice cooker 6, a pot heating burner 7, a drawer-type frame 10, and the like. The rice-washing machine for rice cooking is configured to perform a series of processes from the weighing process by the rice storage tank 2 to the rice-washing process by the rice-washing tank 3, the water washing, adding and subtracting, and dropping, and the rice-cooking process by the rice cooker 5, in accordance with rice cooking settings. ing.

  FIG. 3 is a schematic longitudinal side view of the rice washing tank section.

  As shown in FIG. 3, the rice storage tank 2 includes a rice input port 18 that opens on the upper surface thereof, and the rice input port 18 is configured to be opened and closed by a rice input lid 19.

  As shown in FIG. 3, the lower half of the rice storage tank 2 is formed in a hopper shape, and a measuring instrument 12 is attached to the lower end of the hopper. The meter 12 is constituted by a metering feed valve (rotary valve) driven by a motor 12, and the meter 12 filled with rice that has flowed from the rice storage tank 2 by a certain amount is rotated by the number of revolutions necessary for the planned amount of rice cooking. By rotating, a predetermined amount of rice is supplied from the rice storage tank 2 to the rice washing tank 3.

  As shown in FIG. 3, the rice washing tank 3 includes a funnel-shaped receiving portion 13 for receiving rice supplied from the measuring device 12 at the ceiling portion, a cylindrical body portion 3b at the middle portion, and a hopper shape at the lower portion. It has a part 3c. A jacket portion 31 is connected to the lower part of the hopper-like portion 3c of the rice washing tank 3, and a filter 15 having an opening to the extent that rice grains do not leak is provided at the boundary between the hopper-like portion 3c and the jacket portion 31.

  At the center of the rice-washing tank 3, a rotary shaft 16 that is a hollow shaft extending in the vertical direction is provided, and a rice draining shaft 16 a is disposed through the hollow portion of the rotary shaft 16. Four agitation rods 17a, 17b, 17c, and 17d, which are agitating members, are attached to the rotating shaft 16, and the rotating shaft 16 is driven by a rice washing motor 20 attached to the support machine frame 1 via a transmission system such as a bevel gear 21. Thus, the rotation speed of the rotary shaft 16 can be controlled by rotating in the forward and reverse directions.

  FIG. 4 is a schematic enlarged front view showing details of the stirring rod.

  As shown in FIG. 4, the rice washing tank 3 includes four stirring rods 17 a, 17 b, 17 c, and 17 d, and the outermost stirring rods 17 a and 17 b are located near the oblique inner wall surface 30 of the rice washing tank 3. It is located and has a shape along the entire surface of the oblique inner wall surface 30. Further, the outermost stirring rods 17 a and 17 b have a length equal to or longer than the length of the oblique inner wall surface 30 of the rice washing tank 3.

  As shown in FIG. 4, the rice draining shaft 16a is loosely fitted in the outer rotary shaft 16 so as to be slidable up and down, and includes a removable rice draining valve 22 at the lower end portion of the rice draining shaft 16a. The upper end portion of the rice removal shaft 16a is moved up and down by a cam 24 driven by a rice removal valve drive motor 23 so that the opening and closing of the rice removal valve 22 is controlled. When the rice drain valve 22 is opened, the rice in the rice washing tank 3 falls into the lower rice cooker 5.

  As shown in FIG. 4, the lower end portion 17 aa of the stirring rod 17 a located on the outermost side is bent inward so as to face the rice draining valve 22 and extends in the vicinity of the rice draining valve 22. Similarly, the lower end 17ba of the stirring rod 17b located on the outermost side is also bent inward so as to face the rice draining valve 22, and extends in the vicinity of the rice draining valve 22.

  In the present embodiment, the gap between the stirring rod 17a and the oblique inner wall surface 30 of the rice washing tank 3 and the gap between the stirring rod 17b and the oblique inner wall surface 30 of the rice washing tank 3 are set to 10 mm to 15 mm, respectively.

  Further, as shown in FIG. 4, the stirring rods 17 a, 17 b, 17 c, and 17 d all extend obliquely downward from the attachment portion to the rotating shaft 16 toward the upper end portion of the oblique inner wall surface 30 of the rice washing tank 3. ing.

  As shown in FIG. 3, a drainage box 39 is provided on the lower side of the rice washing tank 3, and a drainage port 40 is provided in the drainage box 39.

  Further, the drainage box 39 is connected to an overflow pipe 41 that opens to the upper side surface of the rice washing tank 3 by a connecting pipe 36, and an inner part is connected to a jacket water distribution pipe 42 that communicates with the jacket part 31. Drainage from the jacket water distribution pipe 42 to the drainage box 39 is performed by opening and closing a drainage valve 44 (in FIG. 3, for convenience, shown integrally with the water level valve 54). The water level is adjusted.

  The rice washing tank 3 is provided with a jacket portion 31 at the lower end, and water and air are supplied to the jacket portion 31 by a lower water supply pipe 27 and an air supply pipe 27a that are disposed in proximity to each other.

  FIG. 5 is a schematic plan view of the water supply unit.

  As shown in FIG. 5, the lower water supply pipe 27 is disposed so as to descend from the water distribution pipe 26 disposed at the upper height position of the rice washing tank 3, and is branched by the switching valve 35, and has a plurality of nozzles 29 a. , 29a are connected to an upper water supply pipe 29 for supplying upper water.

  The water distribution pipe 26 is provided with a flow rate sensor 25 that measures the flow rate, and an open / close valve 28 that operates in accordance with the measurement value of the flow rate sensor 25 is provided in the lower water supply pipe 27. Similarly, the upper water supply pipe 29 is provided with an open / close valve 33 that operates in accordance with the measured value of the flow sensor 25.

  The lower water supply pipe 27 provided as described above supplies water to the jacket part 31 at the lower part of the rice washing tank 3 during the rice washing, and descends from the water distribution pipe 26 at the upper height position of the rice washing tank 3 to the lower part of the rice washing tank 3. Therefore, the entire water amount in the lower water supply pipe 27 is drained without remaining. Therefore, when water is added or subtracted to the washed rice, the total amount of water supplied by the open / close valve 28 that operates according to the measured value of the flow sensor 25 descends the lower water supply pipe 27 and the rice washing tank 3 Since it is supplied to the lower part, it is possible to add and subtract water with high accuracy and to realize desired rice cooking conditions.

  In addition, the air supply pipe 27a provided as described above has an air inlet provided in the lower jacket portion 31, and supplies air constantly or intermittently during the later-described rice washing process, and after the later-described water addition / reduction process. During the water rice supply process, air is temporarily supplied for a short time, thereby promoting the discharge of rice and water in the rice washing tank 3.

  Further, the upper water supply pipe 29 is provided with an opening / closing valve 33 which is branched from the water distribution pipe 26 by the switching valve 35 at the upper height position of the rice washing tank 3 and operates according to the measured value of the flow sensor 25. When water is supplied to the upper part of the rice washing tank 3, the open / close valve 33 is operated according to the measured value by the flow sensor 25, thereby intermittently watering the rice that has been subjected to the rice washing treatment. Water volume can be managed.

  The drainage box 39 is always closed by the drainage valve 44 and the water level valve 54, but when draining the water in the rice washing tank 3, the jacket water distribution pipe 42, the drainage valve 44, and the Drained through the water level valve 54, the drain box 39 and the drain port 40.

  The drain valve 44 and the water level valve 54 are opened and closed by control wires 45 and 55 provided in connection with respective solenoids (not shown) fixedly provided on the ceiling of the rice washing tank 3. In addition, a float sensor 32 with an electrical contact for detecting the amount of water in the rice washing tank 3 is provided in the upper part of the rice washing tank 3.

  FIG. 6 is a schematic longitudinal sectional view showing the structure of a drain hose attached to the drain port 40 of the drain box 39.

  As shown in FIG. 6, an opening / closing member 48 that swings around a shaft 47 provided on the upper side of the downstream side of the drain port 40 and that can be brought into contact with the lower side of the downstream side of the drain port 40. Is provided. As shown in FIG. 6, when the drainage hose 46 is not drained from the drainage box 39, the opening / closing member 48 comes into contact with the lower side of the downstream side of the drainage port 40 by its own weight, and is slanted. With this attitude, the communication between the drain hose 46 and the drain box 39 is blocked. On the other hand, when draining from the drain box 39 to the drain hose 46, the opening / closing member 48 swings counterclockwise around the shaft 47, and as a result, the drain box 39 and the drain hose 46 are communicated.

  In this embodiment, since the opening / closing member 48 having such a structure is provided at the upstream end of the drainage hose 46, it is ensured that insects and rats enter the rice washing tank 3 from the drainage hose 46. It becomes possible to prevent.

  As shown in FIG. 1 and FIG. 2, a plurality of rice cookers 5 are arranged at intervals below the rice washing tank 3, and when the rice washing is completed, the rice discharge valve 22 shown in FIG. 3 and FIG. The lid (not shown) of the rice cooker 5 located below is opened, the rice draining valve 22 is lowered, and the rice after the rice washing is dropped into the rice cooker 5 from the rice washing tank 3.

  FIG. 7 is a block diagram showing a control system, a detection system, a drive system, a display system, and an input system of a rice cooker equipped with a rice cooker according to a preferred embodiment of the present invention shown in FIGS. is there.

  As FIG. 7 shows, the control system of the rice-washing machine provided with the rice cooker concerning this embodiment is the controller 80 which controls the whole rice-washing machine for rice cooking, ROM81 which stores a control program, and various data. A RAM 82 for storing is provided.

  As FIG. 7 shows, the detection system of the rice-washing machine provided with the rice cooker concerning this embodiment has the inside of the water distribution pipe 26 and the measuring device 12 which measures the quantity of the rice supplied to the rice-washing tank 3. A flow rate sensor 25 for measuring the flow rate of flowing water and a float sensor 32 with electrical contacts for detecting the amount of water in the rice washing tank 3 are provided.

  As FIG. 7 shows, the drive system of the rice washing machine for rice cooking provided with the rice cooker concerning this embodiment is the rice washing motor 20 which rotates the rotating shaft 16, and the waste rice which drives the upper end part of the rice draining shaft 16a. A valve drive motor 23, a washing water supply pump 86 that supplies cleaning water from the lower water supply pipe 27 to the rice washing tank 3, and an air pump 87 that supplies air from the air supply pipe 27a to the rice washing tank 3 In the dipping process, a watering pump 88 for watering the washed rice, a drain valve 44, a water level valve 54, a switching valve 35, an opening / closing valve 33, a solenoid 89 for driving the control wire 45, and a control wire 55 Is provided.

  As FIG. 7 shows, the display system of the rice-washing machine provided with the rice cooker concerning this embodiment is provided in the operation panel 100 which is not shown in figure, the liquid crystal display 101 which displays various information, and rice cooking now The rice cooker equipped with the rice cooker according to the present embodiment includes a plurality of LED lighting units 102 indicating which process is being performed by the rice cooker equipped with the cooker. , A power switch 103 provided in the system, an input unit 104 such as a switch or a button for inputting various signals such as the amount of rice to be introduced.

  The rice-washing machine equipped with the rice cooker according to this embodiment configured as described above cooks rice as follows.

  FIG. 8: is a step figure which shows operation performed by the rice-washing machine for rice cooking provided with the rice cooker with time.

  In cooking rice, first, rice is introduced into the rice storage tank 2 from the rice inlet 18.

  The rice put into the rice storage tank 2 is supplied to the rice washing tank 3, the amount of rice supplied to the rice washing tank 3 is detected by the meter 12, and the detection signal is output to the controller 80 (weighing step S1). .

  Thus, when it is determined that a predetermined amount of rice has been supplied to the rice washing tank 3 based on the detection signal from the measuring instrument 12, the controller 80 outputs a drive signal to the rice washing motor 20, and the rotary shaft 16 and the rotary shaft 16 are output. A plurality of stirring rods 17 a, 17 b, 17 c, and 17 d that are attached to the rotating shaft are rotated, and driving signals are output to the washing water supply pump 86 and the air pump 87, so that washing water is supplied from the lower water supply pipe 27 into the rice washing tank 3. While being supplied, air is supplied to the washing water from the air pipe 27a to wash the rice in the rice washing tank 3 (rice washing step S2).

  When the rice is washed for a predetermined time, the controller 80 executes the non-raising dipping step S3.

  That is, the controller 80 outputs a drive stop signal to the rice washing motor 20 to stop the rotation of the plurality of stirring rods 17 a, 17 b, 17 c, and 17 d, and guides the wash water to the drainage box 39 from the drainage hose 46. The water is drained, and further, a drive signal is output to the watering pump 88 to sprinkle the washed rice for a predetermined time. Here, the sprinkling amount of water sprinkled on the rice by the sprinkling pump 88 is detected by the flow sensor 25, a detection signal is output to the controller 80, and the controller 80 is sprinkled based on the detection signal input from the flow sensor 25. When the amount of water reaches a predetermined amount of water, for example, 160 cc, a drive stop signal is output to the watering pump 88 to stop the watering and complete the dipping-up immersion step S3.

  Next, the controller 80 guides the water sprinkled in the rice to the drainage box 39 and drains it from the drainage hose 46 and outputs a drive signal to the rice washing motor 20 in the non-raising dipping process, and a plurality of stirring rods 17a, 17b, 17c, 17d is rotated for a short time, and the draining step S4 is executed.

  Thus, when the water draining step S4 is completed, the controller 80 executes the water addition / subtraction step S5, outputs a drive stop signal to the rice washing motor 20, and stops the rotation of the plurality of stirring rods 17a, 17b, 17c, 17d, A predetermined amount of water is supplied from the lower water supply pipe 27 for water adjustment.

  Next, the process proceeds to the rice / water supply step S 6, and the controller 80 outputs a rice drain valve opening signal to the rice drain valve driving motor 23, opens the rice drain valve 22, and outputs a drive signal to the rice washing motor 20. Then, the plurality of stirring rods 17a, 17b, 17c, and 17d are rotated for a short time and a drive signal is output to the air pump 87 to inject air for a short time.

  In this way, rice and water are supplied from the rice washing tank 3 to the rice cooker 5 located directly under the rice washing tank 3, and the rice cooking step S7 is executed.

  According to this embodiment, the outermost stirring rod 17a is located in the vicinity of the diagonal inner wall surface 30 of the rice washing tank 3, has a shape along the entire surface of the diagonal inner wall surface 30, and its lower end 17aa is Since it is bent inward so as to face the rice draining valve 22 and extends in the vicinity of the rice draining valve 2, the stirring rods 17a, 17b, 17c are used in the rice washing step S2, the draining step S4, and the rice / water supply step S6. , 17d is rotated, even if the rice grains adhere to the inner wall surface of the rice washing tank 3 and the rice grains adhere to the upper surface of the rice discharge valve 22, these rice grains are removed by the stirring rod 17a located on the outermost side. 3 can be reliably peeled off from the inner wall surface of 3 and the upper surface of the rice discharge valve 22 and supplied to the rice cooker 5.

  Further, according to this embodiment, the stirring rods 17a, 17b, 17c, and 17d all extend obliquely downward from the attachment portion to the rotating shaft 16 toward the upper end portion of the oblique inner wall surface 30 of the rice washing tank 3. Therefore, it becomes possible to prevent rice grains from adhering to the upper side of the stirring rods 17a, 17b, 17c, and 17d.

  FIG. 9: is a schematic perspective view of the drain box vicinity of the rice-washing machine provided with the rice cooker concerning another preferable embodiment of this invention.

  As shown in FIG. 9, in this embodiment, the O-ring 110 is attached to the downstream end of the discharge hose 46 whose upstream end is attached to the discharge port 40 of the drainage box 39. A letter-shaped pipe joint 111 is attached.

  In the L-shaped pipe joint 111, a pipe portion 112 that is not coupled to the O-ring 110 is rotatable, and an upstream end portion of another drainage hose 113 is coupled to the end portion thereof.

  According to the present embodiment, the L-shaped pipe joint 111 is configured such that the pipe portion 112 that is not coupled to the O-ring 110 is rotatable, and thus the drainage box 39, the drainage hose 46, and the drainage hose 113 are installed. The degree of freedom of the place can be improved.

  FIG. 10 is a schematic side view of a drain valve driving mechanism of a rice washing machine equipped with a rice cooker according to still another preferred embodiment of the present invention.

  As shown in FIG. 10, in this embodiment, a drain pipe 150 is inserted into the lower part of the rice washing tank 3, and a drain valve 151 is disposed at the tip of the drain pipe 150 located in the drain box 39. Is attached.

  FIG. 11 is a schematic side view showing details of a main part of the drain valve driving mechanism shown in FIG.

  As shown in FIG. 11, the drain valve 151 attached to the tip of the drain pipe 150 includes a packing 152 and a valve member 153 to which the packing 152 is attached.

  One end of an arm 155 is obliquely fixed to the upper surface of the valve member 153, and a substantially central portion of the arm 155 is provided in the vicinity of the tip of the support member 156 fixed to the inner wall of the drainage box 39 on the rice washing tank 3 side. A shaft 157 is pivotally attached.

  The other end of the arm 155 is attached so as to be swingable around a shaft 161 provided at the lower end of the rod 160.

  The upper end portion of the rod 160 is rotatably attached to the lower end portion of the tension rod 163. On the other hand, an arm 167 is fixed to the output shaft 166 of the motor 165. The tension rod 163 is attached to the arm 167 by a nut. It is fixed.

  In the drain valve driving mechanism configured as described above, when water is drained from the rice washing tank 3, the motor 165 is driven, and the output shaft 166 of the motor 165 rotates counterclockwise in FIGS. . Accordingly, the arm 167 also swings counterclockwise, and the tension rod 163 is lowered, so that the rod 160 is also lowered.

  As a result, the arm 155 rotates around the shaft 157 in the clockwise direction.

  Here, since the drain pipe 150 is fixed to the bottom of the rice washing tank 3, the valve member 153 is separated from the packing 152, one end surface of the drain pipe 150 is opened, and water is drained from the drain pipe 150.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

  For example, in the above embodiment, the gap between the stirring rod 17a and the oblique inner wall surface 30 of the rice washing tank 3 and the gap between the stirring rod 17b and the oblique inner wall surface 30 of the rice washing tank 3 are set to 10 mm to 15 mm, respectively. The two stirring rods 17a and 17b are located on the outermost side, located in the vicinity of the oblique inner wall surface 30 of the rice washing tank 3, and have a shape along the entire surface of the oblique inner wall surface 30. Two stirring rods 17 a and 17 b are provided at the same position with respect to the oblique inner wall surface 30 of the rice washing tank 3, but the two stirring rods 17 a and the stirring rod 17 b are disposed with respect to the oblique inner wall surface 30 of the rice washing tank 3. It is not always necessary that they are provided at the same position, and one of the stirring rod 17a and the stirring rod 17b is connected to the rice washing tank 3. It is not 10mm gap between the fit inner wall 30 such that the 15 mm, positioned in the vicinity of the oblique inner wall surface 30 of the rice washing tank 3, may have a shape along the entire surface of the oblique inner wall surface 30.

DESCRIPTION OF SYMBOLS 1 Supporting machine frame 2 Rice storage tank 3 Rice washing tank 3b Body 3c Hopper-shaped part 5 Rice cooker 6 Rice cooker 7 Kettle heating burner 10 Mount 12 Measuring instrument 13 Receiving part 15 Filter 16 Rotating shaft 16a Rice removal shaft 17a, 17b 17c, 17d Stirring rod 17aa Lower end of stirring rod located on the outermost side 18 Rice inlet 19 Rice inlet lid 20 Rice washing motor 21 Bevel gear 22 Rice drain valve 23 Motor for driving rice drain valve 24 Cam 25 Flow sensor 26 Water distribution pipe 27 Lower part Water supply pipe 27a Air supply pipe 28 Opening and closing valve 29 Upper water supply pipe 29a Nozzle 30 Diagonal inner wall surface 31 of washing rice tank 31 Jacket part 32 Float sensor 33 Opening and closing valve 35 Switching valve 36 Connection pipe 39 Drainage box 40 Drainage port 41 Overflow pipe 42 Jacket distribution pipe 44 Drain valve 45con Roll wire 46 Drain hose 47 Axis 48 Opening / closing member 54 Water level valve 55 Control wire 60 Rice cooker lid 61 Lid opening / closing member 62 Vertical frame 63 Horizontal frame 64 Frame body 65 Horizontal frame 66 Cover member 67 Handle 68 Stopper 69 Torque spring 80 Controller 81 ROM
82 RAM
86 Washing water supply pump 87 Air pump 88 Sprinkling pump 89 Solenoid 90 Solenoid 100 Operation panel 101 Liquid crystal display 102 LED lighting unit 103 Power switch 104 Input means 110 O-ring 111 L-shaped fitting 112 Pipe portion 113 Drain hose 150 Drain pipe 151 Drain valve 152 Packing 153 Valve member 155 Arm 156 Support member 157 Shaft 160 Rod 161 Shaft 163 Tension rod 165 Motor 166 Motor output shaft 167 Arm

Claims (6)

  The rice washing tank has a hopper-like lower portion and a plurality of stirring rods for stirring the rice and water in the rice washing tank, and at least the outermost stirring rod among the plurality of stirring rods is a hopper of the rice washing tank. The rice-washing machine for rice cooking characterized by being located in the vicinity of the slanted inner wall surface and having a shape along the entire surface of the slanted inner wall surface of the rice washing tank.   Among the plurality of stirring rods, two or more stirring rods are located in the vicinity of the diagonal inner wall surface forming the hopper shape of the rice washing tank and have a shape along the entire surface of the diagonal inner wall surface of the rice washing tank. The rice-washing machine for rice cooking of Claim 1 characterized by the above-mentioned.   The gap between at least the outermost stirring rod among the plurality of stirring rods and the oblique inner wall surface of the rice washing tank is set to 10 mm to 15 mm. Rice-washing machine for cooking rice.   The stirring rod located at least on the outermost side among the plurality of stirring rods has a length equal to or greater than the length of the oblique inner wall surface of the rice washing tank. The rice-washing machine for rice cooking of Claim 1.   The rice washing tank has a rice drain valve for dropping the rice after washing into the rice cooker at the lower end, and among the plurality of stirring rods, at least the lower end of the stirring rod located at the outermost side is The rice-washing machine for rice cooking according to any one of claims 1 to 4, wherein the rice-washing machine is bent inward so as to face the rice draining valve and extends in the vicinity of the rice draining valve. 6. The apparatus according to claim 1, wherein the plurality of stirring rods extend obliquely downward from an attachment portion to a rotating shaft toward an upper end portion of the oblique inner wall surface of the rice washing tank. Rice-washing machine for rice cooking as described in 2.

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