JP2022098991A - Rice washing device - Google Patents

Abstract

To facilitate removing a rice discharge valve from a vertical movement shaft with one hand.SOLUTION: A rice washing device includes a rice discharge valve 39 capable of opening and closing a rice discharge port of a rice washing tank 5, and a vertical movement shaft 38 linked with the rice discharge valve 39. A lock mechanism 42 is provided in a lower part of the vertical movement shaft 3 8 for switching between a detachable posture state where the rice discharge valve 39 can be pulled out downward with respect to the vertical movement shaft 38 by rotation of a lock piece 42a and a lock stated where it cannot be pulled out.SELECTED DRAWING: Figure 13

Description

The present invention relates to a rice washing device before cooking rice, and particularly to a drop valve for supplying rice after washing rice and water content to the rice cooker below from the rice washing tank.

A locking member that stops the rice discharge valve from coming off downward with respect to the lower moving shaft, and a configuration in which the locking member is released from fitting to the vertical moving shaft by pushing up the unlocking member are known (patented). Document 1).

Japanese Patent No. 5514786

According to Patent Document 1, there is an effect that the rice discharge valve can be easily removed, but one-handed operation is difficult because the unlocking member needs to be pushed up.

It is an object of the present invention that the rice discharge valve can be easily removed from the vertical movement shaft with one hand to facilitate operation.

The present invention has taken the following technical measures to solve the above problems.

The invention according to claim 1 is a rice washing device provided with a rice discharging valve 39 capable of opening and closing the rice discharging port of the rice washing tank 5 and a vertical moving shaft 38 interlocking the rice discharging valve 39, and is locked at the lower part of the vertical moving shaft 38. A lock mechanism 42 is provided to switch between a detachable posture in which the rice draining piece 39 is pulled downward with respect to the vertical movement shaft 38 by rotation of the piece 42a and a locked posture in which the rice draining piece 39 is not pulled out.

The invention according to claim 2 is the invention according to claim 1, wherein the lock mechanism 42 is configured by rotatably providing a lock piece 42a in a narrow groove 38a provided at the lower end of the vertical movement shaft 38. The upper portion of the narrow groove 38a is formed in an inclined shape 38b, and can correspond to an inclined edge 42c formed in the lock piece 42a in the detachable posture.

In the invention according to claim 3, in the invention according to claim 2, the engagement hole with the horizontal support shaft 42b for rotating and holding the lock piece 42a is a long hole 42d, and further, at the end of the long hole 42d. The locking recess 42e is formed.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the rice discharge valve 39 is made of resin and is formed into a cone, and the conical portion covers the rice discharge port. A valve body 39a having a size that can be used and a weight 39b are provided in the lower opening of the valve body 39a, and a through hole 39c that can slide the vertical movement shaft 38 along the vertical center line is formed in both of them. The moving shaft 38 has a certain lower diameter L formed with a smaller diameter with respect to the upper side, and a lock mechanism 42 is incorporated in this small diameter portion, and the through hole 39c formed in the weight 39b has a smaller diameter of the vertical moving shaft 38. The diameter is smaller than the through hole 39c formed in the main body portion 39a so as to correspond to the portion, and the upper limit positioning of the weight 39b is configured by the different diameter portion 38c leading to the small diameter portion of the vertical movement shaft 38.

According to the first aspect of the present invention, the rice discharge valve 39 can be attached and detached by rotating the lock piece 42a of the lock mechanism 42, so that one-handed operation is easy.

According to the second aspect of the present invention, in addition to the effect according to the first aspect, the rotation of the lock piece 42a from the locked posture to the detached posture can be restricted to a certain level or more, that is, the operator is in the released posture at the interval between fingers. It is easy to intuition that there is something. Further, by setting the inclined edge 42c of the lock piece 42a, the entire rice discharge valve 39 can be smoothly pushed up by the inclined edge 42c during the transition from the locked posture to the detachable posture.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the horizontal support shaft 42b is engaged with the locking recess 42e to receive the load of the rice discharge valve 39 while positioning the lock piece 42a. Since it is obtained, there is no risk of unexpected rotation.

According to the invention of claim 4, in addition to the effects of claims 1 to 3, the vertical movement shaft of the rice discharge valve 39 is operated even while the lock mechanism 42 is operated with one hand when attaching / detaching the rice discharge valve 39. The upper limit position with respect to 38 can be known, and the rotation operation of the lock piece 42a can be facilitated.

It is a front view of the rice washing apparatus. It is a side view of the rice washing apparatus. It is a front sectional view of the rice washing apparatus. It is a perspective view of a rice storage tank and a rice washing tank. It is a top view of a rice storage tank and a rice washing tank. It is a side sectional view of the measuring part. It is sectional drawing of the drum case. It is a perspective view of the rice washing apparatus. It is a top view of the partition member and the peripheral arrangement equipment. It is a perspective view of a partition member and peripheral arrangement equipment. It is an overall control flowchart of a rice cooker. (A) An exploded normal cross-sectional view of the rice discharge valve and the vertical movement shaft, and (B) a side view of the vertical movement shaft. (A) is a side sectional view showing a state of the attachment / detachment posture of the lock mechanism, (B) a side sectional view showing the state of the lock mechanism, and (C) a bottom view showing the state of the attachment / detachment posture of the lock mechanism. (A) is a perspective view showing a state in which the rice washing tank is removed, (B) is a side view showing a state in which the rice washing tank is temporarily placed, and (C) is a perspective view of the rice washing tank.

Embodiments of the present invention will be described in detail below with reference to the drawings.
The support member 1 that vertically and horizontally frames the U-shaped or square tubular member is between a rectangular underframe 1a having casters at the bottom, left and right columns 1b and 1b having a predetermined width and a predetermined height, and left and right columns 1b and 1b. It is composed of a plurality of cross rails 1c, 1c ...

The horizontal rail 1c is provided with a flat plate-shaped partition member 3 for mounting each equipment, a rice storage tank 4 is provided above the flat plate-shaped partition member 3, a rice washing tank 5 is provided below the rice storage tank 4, and the rice washing tank 5 is provided. The rice cooking device 6 is arranged below at intervals. The rice cooker 6 includes a rice cooker 7, a gas cooker 8 for heating the rice cooker, a drawer-type stand 9, and the like. The drawer side of the gantry 9 in FIG. 1 is the front side, and the back side is the rear side.

The rice storage tank 4 is composed of a main tank 4a at the upper part having a rectangular cross section and a funnel-shaped hopper portion 4b at the lower part, and a measuring drum case 10 is attached to the lower end portion of the hopper portion 4b. In the measuring drum case 10, a measuring drum 13 including a drum portion 11a having a cylindrical notch portion 11 and front and rear side wall portions 12a and 12b is provided and penetrates the front and rear side wall portions 12a and 12b. It is rotatably supported by the drum case 10 by the horizontal axis 14. Further, a motor 15 is mounted on the rear surface side of the drum case 10 so as to directly interlock the shaft 14, and a fixed amount of rice flowing down from the rice storage tank 4 through the notch 11 is filled in the measuring drum 13 by rotation. When the position of the notch 11 is inverted downward and reaches the discharge port 16 formed in the drum case 10, the measuring drum 13 is discharged.

The partition member 3 is provided with an opening 17 corresponding to the discharge port 16, and is configured to deliver a predetermined amount of rice from the rice storage tank 4 to the rice washing tank 5 by rotating the measuring drum 13 by a predetermined rotation speed. There is. Further, a predetermined amount can be supplied by detecting a rotation sensor (not shown) that counts the number of feedings.

The drum case 10 and the funnel-shaped hopper 4b are integrally configured, and after the upper main tank 4a is removed, the integral body of the hopper 4b and the drum case 10 can be removed from the partition member 3. It is composed. That is, on the rear side, an engaging portion 20 is provided so that the engaging convex portion 19 of the drum case 10 can be engaged and disengaged from the hook-shaped portion 18 formed on the partition member 3, and these partition members 3 and the drum case 10 are provided on the front side. A detachable engaging stay 21 that can be attached and detached and fixed with a screw is provided between the two, and the stay 21 is rotated around the center of the screw portion by loosening the screw 22 to release the engagement with the drum case 10. The lower end edge of the drum case 10 is formed so as to fit into the rectangular opening of the partition member 3, but the lower end edge of the drum case 10 is slightly lifted upward by disengaging the engagement stay 21. By releasing the fitting from the partition member 3 and pulling it diagonally from the front toward the front, the engagement of the engaging portion 20 can be released while releasing the fitting of the lower end edge on the rear side.

The rice storage tank 2 and the measuring portion are configured to cover the outside with a cover member 23, and the left and right side walls and the rear side wall are appropriately fixed to the partition member 3 and the like, and the front side wall lower half portion 23a is, for example, a front view. It is configured as a door that can be opened and closed with the right side as a fulcrum. The upper half portion 23b of the front side wall is connected to the left and right side walls to form a fixed wall. Therefore, the rice storage tank 2 and the drum case 10 can be inspected and attached / detached with the front side wall lower half portion 23a open. Reference numeral 24 denotes a square covering plate that detachably covers the main tank 4a from above.

Reference numeral 25 denotes a discharge shutter for rice discharge provided on one side (front side in the figure) of the funnel-shaped hopper portion 4b. The structure is such that the rice inside can be discharged.

FIG. 7 shows a cross-sectional view of the measuring drum 13 portion, in which gaskets 26a and 26b for tilting and guiding rice are provided between the funnel-shaped lower hopper 4b and the drum case 10, and the outer periphery of the measuring drum 13 and the inside of the drum case 10 are provided. The space between the circumference and the circumference is such that there is a gap t (for example, about 1 mm) that does not crush the rice even if it is infiltrated.

The weighing drum 13 is repeatedly rotated and stopped in a certain direction by the motor 15, but the stop position of the weighing drum 13 is the position shown in FIG. That is, a vibrating means (referred to as a pump 66 for air supply described later in the figure) is attached to the side wall of the funnel-shaped hopper 4b on the inclined wall near the existing side of the rotary rear side gasket 26b to promote the internal rice flow. In addition, the opening edge of the measuring drum 13 is stopped at the rear position of the vibration-side gasket 26b, and the other open end edge is stopped at the front position of the non-vibration-side gasket 26a. The rice that is about to enter due to the vibration of the vibration means is shielded by the measuring drum 13, while the non-vibrating side naturally feeds the rice into the measuring drum 13 to stabilize the accuracy of the supply amount.

As shown in FIG. 3, the rice washing tank 5 is provided with a receiving cylinder portion 31 for guiding rice supplied from the drum case 10 on the ceiling portion, a cylindrical body portion in the middle portion, and a hopper-shaped portion in the lower portion. A filter 33 made of a mesh body having a jacket portion 32 connected below the hopper-shaped portion of the rice washing tank 3 and having an opening at the boundary between the hopper-shaped portion and the jacket portion 32 so as not to leak rice grains. Is provided.

A vertical rotating shaft 34 is provided in the center of the rice washing tank 5, and a plurality of stirring rods 35, 35 ... Attach to 34 by welding or the like. The rotating shaft 34 is rotated by the rice washing motor 36 via the bevel gear mechanism 37, and is configured to agitate the rice and water in the tank by rotation.

The rotary shaft 34 is a hollow shaft, and the inner shaft 38 is loosely fitted vertically and vertically inside the outer hollow shaft 34 and extends downward. A conical rice discharge valve 39 is detachably provided at the lower end of the vertical movement shaft 38. The upper end of the vertical movement shaft 38 is moved up and down by an interlocking mechanism such as a cam 41 driven by a rice discharge valve driving motor 40 and a drop arm described later, so that the opening and closing of the rice discharge valve 39 is controlled. When the rice discharge valve 39 is opened, the rice in the rice washing tank 5 is configured to fall from the lower rice discharge port into the inner pot of the rice cooker 6.

Next, the attachment / detachment configuration and the lock configuration of the rice discharge valve 39 with respect to the vertical movement shaft 38 will be described in detail. A valve body 39a made of resin and having a size that can cover the rice discharge port with the cone, and a weight 39b at the lower opening of the valve body 39a are provided, both of which are along the upper and lower center lines. A through hole 39c capable of sliding the vertical movement shaft 38 is formed. A plurality of bottomed locking pins 39d penetrate the weight 39b and are engaged with the recess 39e on the valve body 39a side to hold the weight 39b.

A lock mechanism 42 is provided at the lower part of the vertical movement shaft 38 penetrating the through hole 39c of the rice discharge valve 39. The lock mechanism 42 is configured by rotatably providing a lock piece 42a in a narrow groove 38a provided by cutting at the lower end of the vertical movement shaft 38. That is, the longitudinal side of the lock piece 42a is provided to a predetermined dimension, but the width thereof is set within the diameter dimension of the vertical movement shaft 38, and the lock piece 42a can be rotated with respect to the horizontal support shaft 42b incorporated in the vertical movement shaft 38 side. It is to be provided. Therefore, when the lock piece 42a is longitudinally along the vertical movement shaft 38, the rice discharge valve 39 is allowed to move further from the lower end of the vertical movement shaft 38 to the lock piece 42a side (FIG. 13 (A)). When the piece 42a is rotated around the horizontal support shaft 42b and tilted with respect to the vertical movement shaft 38 in a direction of approximately 90 degrees, the longitudinal direction of the lock piece 42a faces the through hole 39c and the lower surface of the weight 39b. The rice discharge valve 39 is restricted from moving downward from the lower end of the vertical movement shaft 38 (FIG. (B)).

As described above, the rotation of the lock piece 42a switches between the detachable posture in which the rice draining piece 39 is pulled out downward with respect to the vertical movement shaft 38 and the locked posture in which the rice draining piece 39 is not pulled out. This rotation can be performed by one-handed operation.

By the way, the upper portion of the narrow groove 38a is formed in an inclined shape 38b so as to correspond to the inclined edge 42c formed in the lock piece 42a in the detachable posture. With such a configuration, it is possible to restrict the rotation of the lock piece 42a from the locked posture to the detached posture by a certain amount or more, that is, it is easy for the operator to intuitively understand that the lock piece 42a is in the released posture at intervals of the fingers. Further, by setting the inclined edge 42c of the lock piece 42a, the inclined edge 42c during the transition from the locked posture to the detachable posture smoothly pushes up the lower surface of the weight 39b, that is, the entire rice discharge valve 39. When the inclined edge 42c is formed in a curved shape, the pushing-up effect is more remarkable.

Further, the engagement hole of the lock piece 42a with the horizontal support shaft 42b is made into a long hole 42d, and a locking recess 42e is formed at the end of the long hole 42d. As a result, when the lock piece 42a is moved to the lock posture, the lock piece 42a can be moved along the elongated hole 42d, so that the position of the lock piece 42a in the lock posture in the horizontal plane direction can be specified, and the horizontal support shaft 42b is engaged. By engaging with the stop portion 42e, the lock piece 42a can be positioned and the load of the rice discharge valve 39 can be received, so that there is no risk of unexpected rotation.

The vertical movement shaft 38 has a certain lower diameter range L formed with a smaller diameter with respect to the upper side, and a lock mechanism 42 is incorporated in this small diameter portion. The through hole 39c formed in the weight 39b has a smaller diameter than the through hole 39c formed in the main body portion 39a in order to correspond to the small diameter portion of the vertical movement shaft 38. Therefore, the upper limit positioning of the weight 39b is set at the different diameter portion 38c reaching the small diameter portion of the vertical movement shaft 38. Therefore, the upper limit position of the rice discharge valve 39 with respect to the vertical movement shaft 38 can be known even while the lock mechanism 42 is operated with one hand when attaching / detaching the rice discharge valve 39, and the rotation operation of the lock piece 42a can be facilitated.

In the above embodiment, the engagement of the lock piece 42a in the locked state is the lower surface of the weight 39b, but other members may be used.

The water supply to the rice washing tank 5 is supplied by a main water pipe 46 communicating with a water faucet, an upper water supply valve 47 and two flexible upper water pipes 48,48, and an upper water supply port 49 on the ceiling of the rice washing tank 5. It is carried out by two systems, an upper water supply route via 49 and a lower water supply route branching from the main water distribution pipe 46 and passing through a lower water supply valve 50, a water distribution pipe 51, and a lower water supply port 52 via a jacket portion 32. Each water supply route is equipped with a flow rate sensor.

That is, in the vicinity of the drum case 10, two upper water supply pipes 48, 48 leading to the main water distribution pipe 46 are arranged based on the partition member 3, and the water distribution pipe 51 in which the partition member 3 is provided in a penetrating manner is provided. The lower water supply pipe 53 is connected.

Reference numeral 55 is a shutter that opens and closes the discharge port 16 in connection with the electric motor 15, and the drum opening connected to the shutter support shaft 58 via the link mechanisms 56 and 57 by the rotation of the motor 15 coincides with the discharge port 16. The interlocking configuration is such that the shutter 55 is opened when the shutter 55 is operated. Therefore, the shutter 55 is always in the closed posture to prevent the diffused water from scattering during the rice washing in the rice washing tank 5 and prevent the water from entering the measuring drum 13.

The above water supply pipes 48, 48 are arranged so as to be located on the left and right center lines in a plan view, and this position corresponds to the left and right center lines in a plan view of the rice washing tank 5 described later. Further, the drum case 10 is located on the left side of the position where the upper water supply pipes 48 and 48 are arranged, and the rice discharge valve 39 motor 40 and the stirring rods 35, 35 ... Drive rice washing motor 36 described later are located on the right side. It is arranged.

A drainage box 60 is provided behind the lower part of the rice washing tank 5. In the drainage box 60 having the drainage port 61, the lower end portion of the overflow pipe 62 whose upper end opens on the upper side surface of the rice washing tank 5 and the other end portion of the jacket portion 32 whose one end communicates with the jacket portion 32 are connected. Has been done. Drainage from the jacket portion 32 is performed by opening and closing the drain valve 64, and the water level in the rice washing tank 5 is adjusted while draining with the water level valve 65.

The drainage box 60 is always closed by the drainage valve 64 and the water level valve 65, but when draining the water in the rice washing tank 5, the drainage valve 64 and / or the water level valve 65 is discharged from the filter 33 of the jacket portion 32. , The drainage box 60 and the drainage port 61 are used for drainage. The drain valve 64 and the water level valve 65 are opened and closed by an appropriate opening / closing output. Further, a water level sensor 68 for detecting the amount of water in the rice washing tank 5 is provided in the upper part of the rice washing tank 3.

By the way, the overflow pipe 62 has a horizontal pipe portion 62a connected to the vicinity of the upper end portion of the rice washing tank 3 and a vertical pipe portion 62b connected to the horizontal pipe portion 62a, and the lower end of the vertical pipe portion 62b is the drainage box. It is connected to 60. Then, the upper end of the vertical pipe portion 62b is extended upward, and the extension pipe portion 62c is appropriately fixedly supported by the mounting holder 69 provided on the lower surface of the partition member 3 in a state of penetrating the partition member 3.

In the cover member 23, the substantially closed space A between the lower part of the rice storage tank 4 and the partition member 3 accommodates the measuring unit 10, various driving units, pipes, and the like. However, breathability is ensured to prevent water vapor trapping. That is, the blower fan 70 is arranged on one side wall of the cover member 23, and is configured to be constantly energized and driven while the device is operating so that external air can be supplied into the space A. The air that has entered the space A is appropriately circulated through the space A and exhausted to the outside of the machine through a mesh hole or the like described later. Therefore, the humidity can be reduced by the flow of external air in the space A that receives the water vapor rising during rice cooking. A controller 71 is arranged on the inner surface of the cover member 23 on the side facing the blower fan 70, and moisture can be removed by giving a ventilation action to the stove roller 71 as well. If the upper end opening of the extension pipe portion 62c is viewed in the vicinity of the controller 71, for example, below the front portion of the controller 71, an appropriate air flow is generated and the air acting on the controller 71 is efficiently introduced into the extension pipe portion 62c. obtain.

By the way, by penetrating the partition member 3 through the extension portion 62c of the overflow pipe 62 as described above, the upper end opening is viewed into the space portion A, and the ventilation from the blower fan 70 passes through the overflow pipe 62 into the rice washing tank 5. Will be supplied to. That is, the air that has entered from the upper end of the extension pipe portion 62c of the overflow pipe 62 enters the rice washing tank 5 via the extension portion 62c and the horizontal pipe portion 62a. Therefore, it has the effect of drying the inside of the rice washing tank 5. In this way, by forming the ventilation portion B such as the extension pipe portion 62c of the overflow pipe 62 between the space portion A and the rice washing tank 5, the circulating air by the blower fan 70 can be introduced into the rice washing tank 5. , The inside of the rice washing tank 5 can be dried.

If the extension pipe portion 62c of the overflow pipe 62 is provided as the ventilation portion B, even if the dust in the space portion A is conveyed by air, the dust falls through the vertical pipe portion 62b of the overflow pipe 62 and is a drainage box. When it reaches 60, there is little risk of entering the rice washing tank 5.

A ventilation net or a net-like body 73 made of punching metal may be attached to the upper end of the extension pipe portion 62c (ventilation portion B) to prevent foreign matter from entering.

A cavity C is provided in the lower part of the bottom surface of the space A surrounded by the cover member 23 and the partition member 3, and various harnesses (not shown) are accommodated. More specifically, the partition member 3 is formed by drawing and integrally forming a side wall, and a bottom plate 72 is provided below the partition member 3 in a cover shape to form a hollow portion C. A net-like body 74 made of a ventilation net or a punching metal is attached to an appropriate position of the partition member 3 so as to communicate with the cavity C. In this case, the mesh size of the mesh body 73 at the upper end of the extension pipe portion 62c (ventilation portion B) is smaller than the mesh size of the mesh body 74 arranged at an appropriate position of the partition member 3, and foreign matter, particularly It enhances the effect of preventing the invasion of small-sized insects. Next, the water level sensor 68 will be described. The water level sensor 68 is provided to detect that the amount of water in the rice washing tank 5 is the water level immediately before reaching the overflow state or reaching the overflow state, and includes a detection electrode 68a (water level detection unit) for detecting that the predetermined water level is reached. It is a known configuration that can detect a change in capacitance based on the presence or absence of a water level and detect that the predetermined water level has been reached. The water level sensor 68 is detachably supported by the partition member 3. The detection electrode 68a is connected and fixed to the supporting base member 68b. That is, it is located on the upper surface of the partition member 3 at a position close to the lower half portion 23a of the front side wall of the cover member 23 and is connected and fixed to the base member 68b. The base member 68b of the water level sensor 68 is fixed by fastening and loosening the rotation lock pieces 75 arranged at two locations on the left and right with the wing bolts 76, and the wing bolts 76 can be rotated by fingers. It can be implemented and is provided without so-called tools. When the base member 68b is removed, the large opening 77 formed in the partition member 3 can be opened. Therefore, the worker can visually check the inside of the rice washing tank 5 through the opening 77 that opens to the front side by opening the lower half portion 23a of the front side wall of the cover member 23.

In the above embodiment, the water level sensor 68 has an electrode form that can detect the presence or absence of capacitance, but various configurations such as a float form that can turn on and off the electrical contacts as the so-called float rises. can do. Next, the operation of the rice cooker will be described.

First, in the control unit of the computer outside the figure, the rice cooking device operation such as rice cooking amount, rice washing time (rotation time of stirring rod 35), rice polishing time (rotation time of stirring rod 35), immersion time in rice washing tank or kettle, etc. The conditions necessary for the above are set by the operation panel (operation display device) 80 arranged in the lower half portion 23a of the front side wall of the cover member 23. A liquid crystal display screen 81 is provided, and the above conditions necessary for rice washing and rice cooking can be set while displaying and guiding the operation functions and operation procedures of the surrounding switch group 82.

The operation of the above example will be described.

When the power switch is turned on, the rice cooking conditions are set according to each operation of the operation panel 80, various rice cooking conditions are set, and then the start switch is turned on, the operation is started as shown in the rice cooking flow shown in FIG.

That is, first, the power switch is turned on (step 1), then the rice cooking condition is set and input (step 2), and when the start switch 75 is pressed (step 3), the rice in the rice storage tank 4 is weighed with the weighing drum in step 4. Then, a set amount of rice is supplied to the rice washing tank 5, and the rice is washed in step 5.

The rice washing step of step 5 is a rice bran removing step of stirring rice while dripping water, a rice polishing step of once supplying water and then draining and stirring the rice in a wet state, a rough rinsing step of stirring rice at a predetermined water level, and a tank of water. It consists of a finishing rinsing process that stirs while overflowing.

Following the rice washing step of step 5, the process proceeds to the water-adjusting treatment step of step 6. In step 7, the washed rice in the rice washing tank 5 and the weighed water in step 3 are dropped into the rice cooker 7 by opening and closing the rice discharge valve 139.

In step 8, the rice in the rice cooker 7 is immersed in water for a specified time. After the lapse of the specified time, the rice is ignited in step 9, the rice is cooked in step 10, the steam is steamed in step 11, and the cooked rice is cooked in step 12, and the predetermined cooked rice is completed.

Before turning on the start switch, the reservation screen can be output by operating the reservation switch, and the cooking time can be set to the reserved time to cook at the scheduled time.

Further, in the above embodiment, the amount of water is gradually reduced from the full state of the rice washing tank by opening the water level valve 65 to secure a predetermined amount of water. It may be a managed configuration.

The rice washing tank 5 is detachably provided with respect to the partition member 3 via a connecting metal fitting 79. This makes it easy to clean the inside of the rice washing tank 5. In FIG. 14, a temporary placing frame 80 on which the removed rice washing tank 5 can be temporarily placed is provided on the support member 1, and a ridge portion 81 for mooring the temporary placing frame 80 is provided on the rice washing tank 5 side. In the illustrated example, three ribs are formed in the vertical direction, and the lower side thereof forms a curved edge 81a. The provision of the ridge portion 81 facilitates the mounting operation on the temporary placement frame 80, and the provision of the ridge portion 81 enables stable mounting. The ridge 81 is provided only behind the rice washing tank 5, but if it is configured in this way, it is easy to determine the phase when assembling the rice washing tank 5, and it is possible to prevent erroneous assembly.

5 Rice washing tank 38 Vertical movement shaft 38a Fine groove 38b Inclined 38c Different diameter part 39 Rice discharge valve 39a Valve body 39b Weight 39c Through hole 42 Lock mechanism 42a Lock piece 42b Horizontal support shaft 42d Long hole 42e Locking recess

Claims (4)

In a rice washing device equipped with a vertical movement shaft (38) that interlocks a rice discharge valve (39) that can open and close the rice discharge port of the rice wash tank (5) and a rice discharge valve (39), the lower part of the vertical movement shaft (38). A lock mechanism (42) is provided to switch between a detachable posture in which the rice draining piece (39) is pulled downward with respect to the vertical movement shaft (38) by rotation of the lock piece (42a) and a locked posture in which the rice draining piece (39) cannot be pulled out. A rice washing device characterized by that. The lock mechanism (42) is configured by rotatably providing a lock piece (42a) in a narrow groove (38a) provided at the lower end of the vertical movement shaft (38), and the upper portion of the fine groove (38a) is inclined. The rice washing device according to claim 1, which is formed in a shape (38b) and has a configuration that can correspond to an inclined edge (42c) formed in a lock piece (42a) in a detachable posture. A claim that the engagement hole with the horizontal support shaft (42b) that rotates and holds the lock piece (42a) is a long hole (42d), and a locking recess (42e) is formed at the end of the long hole (42d). Item 2. The rice washing device according to item 2. The rice discharge valve (39) is made of resin and is formed into a cone, and the valve body (39a) having a size capable of covering the rice discharge port with the conical portion and a weight at the lower opening of the valve body (39a). (39b) is provided, and a through hole (39c) capable of sliding the vertical movement shaft (38) along the vertical center line is formed in both of them, and the vertical movement shaft (38) has a certain downward range (L). Is formed to have a smaller diameter with respect to the upper side, and a lock mechanism (42) is incorporated in this small diameter portion, and the through hole (39c) formed in the weight (39b) is formed in the small diameter portion of the vertical movement shaft (38). A hole with a smaller diameter than the through hole (39c) formed in the main body (39a) to correspond to this, and the weight (39b) at the different diameter portion (38c) leading to the small diameter portion of the vertical movement shaft (38). The rice washing apparatus according to any one of claims 1 to 3, which constitutes upper limit positioning.

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