JP2022099706A - Rice washing device - Google Patents

Abstract

To provide a rice washing device that facilitates 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, with a hook engagement part 40 formed from a hook 40a and an engagement ring 40b engageable with the hook 40a being provided between the vertical movement shaft 38 and the rice discharge valve 39. Further, the hook engagement part is provided such that a center line of the rice discharge valve 39 is positioned on a downward extension line of an axis center Y of the vertical movement shaft 38 of the rice washing tank 5 in a horizontal attitude.SELECTED DRAWING: Figure 12

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 with the rice discharging valve 39, wherein the vertical moving shaft 38 and the rice discharging valve are provided. A hook engaging portion 40 including a hook 40a and an engaging ring 40b capable of engaging the hook 40a is provided between the hook 40a and the 39.

According to the second aspect of the present invention, in the invention of the first aspect, the center line X of the rice discharge valve 39 is on a downward extension line with respect to the axis Y of the vertical movement shaft 38 of the rice washing tank 5 in the horizontal posture. It will be provided.

According to the first aspect of the present invention, the rice discharge valve 39 can be attached to and detached from the lower end of the vertical movement shaft 38 by engaging and disengaging the engaging ring 40b with respect to the hook 40a, and can be easily performed with one hand. Is easy.

According to the second aspect of the present invention, in addition to the effect according to the first aspect, the opening / closing operation of the rice discharging port by moving the rice discharging valve 39 up and down is smooth.
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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) is a side view of a hook engaging portion between a rice discharge valve and a vertical moving shaft, and (B) is a front view of the same. It is a front view which shows another example of the hook engagement part. It is a front suspension showing still another example of the hook engaging portion. (A) A side view of the rice washing device, (B) a perspective view of a part thereof, (C) a plan view of a part thereof, and (D) a front view of a part thereof.

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 cooking device 6 includes a rice cooking pot 7, a gas table for heating the pot 8, a drawer-type stand, 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 rotation shaft 34 in the vertical direction 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 cooking device 6.

Next, the attachment / detachment 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 conical portion, and a weight 39b at the lower opening of the valve body 39a are provided, and the vertical movement shaft 38 and the valve body 39a are provided. A hook engaging portion 40 including a hook 40a and an engaging ring 40b capable of engaging the hook 40a is provided between the hook and the top. In FIG. 12, a hook 40a is integrally formed at the lower end of the vertical movement shaft 38, while the leg portion 40c of the engaging ring 40b is fitted and fixed to the through hole 39c formed at the top of the valve body 39a. Therefore, the rice discharge valve 39 is attached to or removed from the lower end of the vertical moving shaft 38 by engaging and disengaging the engaging ring 40b with respect to the hook 40a, and can be easily performed with one hand. It is also simple to configure.

Then, the center line X of the rice discharge valve 39, that is, the vertical line passing through the virtual cone top of the rice discharge valve 39 (valve body 39a) and the center of gravity G of the rice discharge valve 39, is the vertical movement shaft 38 of the rice washing tank 5 in the horizontal posture. It is provided so as to be on the lower extension line of the axis Y. With this configuration, the opening and closing operation of the rice discharge valve by the vertical movement of the vertical movement shaft 38 becomes smooth. That is, if the extension line of the axis Y of the vertical movement shaft 38 and the center line X of the rice discharge valve 39 deviate from each other and deviate, the rice discharge valve 39 that follows the vertical movement of the vertical movement shaft 38 is fully connected to the rice discharge port of the rice washing tank 5. The circumferences cannot be evenly adhered to each other, and the valve opening / closing operation is not smooth. However, when the center line X and the axis Y coincide with each other, this is resolved and the opening / closing operation becomes smooth.

In FIG. 13, the hook 40a formed at the lower end of the vertical movement shaft 38 is formed in an elliptical shape. With this configuration, the rice discharge valve 39 can be stably opened and closed without being unexpectedly disengaged.

Further, in FIG. 14, the lower end side of the vertical movement shaft 38 is the engaging ring 40b, and the hook 40a is configured on the rice discharge valve 39 side. Even with this configuration, it can be easily attached and detached with one hand as described above.

In the above example, the hook engaging portion 40 is configured such that the hook 40a is formed on either one of the vertical moving shaft 38 and the rice discharge valve 38 and the engaging ring 40b is formed on one of the vertical moving shafts 38. Both 38 and the rice discharge valve 39 may be configured as hooks.

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 fixed and supported by a 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 portion A appropriately circulates in the space portion A and is exhausted to the outside of the machine through a mesh hole portion 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 washing rice 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 in which the mixture is stirred 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.

Next, a configuration for facilitating the charging of rice into the rice storage tank 2 will be described. In FIG. 15, the upper half portion 23b of the front side wall of the cover member 23 is removed and used as a mounting table for the rice bag 80. The removed front side wall upper half portion 23b is positioned on the front side wall lower half portion 23a in a half-opened state, and is appropriately pinned. In the illustrated example, the rice is pinned at three places, two places on the left and right on the support frame 1 to the rice storage tank 2, and one place on the lower half portion 23a of the front side wall that is half-opened. With this configuration, the rice bag 80 stand can be easily and easily assembled, which is convenient for the user.

A transparent window 81 capable of displaying the capacity in the rice storage tank 2 when the upper half portion 23b of the front side wall is removed is provided.

5 Rice washing tank 38 Vertical movement shaft 39 Rice discharge valve 40 Hook engagement part 40a Hook 40b Engagement ring X (rice discharge valve) Center line Y (vertical movement shaft) Shaft core

Claims (2)

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 vertical movement shaft 38 and the rice discharge valve ( A rice washing device characterized in that a hook engaging portion (40) including a hook (40a) and an engaging ring (40b) capable of engaging the hook (40a) is provided between the hook (40a) and the hook (40a). According to claim 1, the rice discharge valve (39) center line (X) is provided so as to be on a downward extension line with respect to the axis (Y) of the vertical movement shaft (38) of the rice washing tank (5) in the horizontal posture. The described rice washing device.

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