JP4481223B2 - Rice washing equipment - Google Patents

Description

  The present invention relates to a rice washing apparatus for washing rice by rotating a stirring member in a rice washing tank.

As a conventional rice washing device, in a rice washing tub that can contain rice and water, a rotary shaft that is driven to rotate about an axis in the vertical direction, and a rotary shaft that is fixed to this rotary shaft and rotates. Some have a stirring member that stirs rice in a tank together with water (for example, see Patent Document 1).
The rotating shaft is rotated in one direction around its axis by a motor or the like, and the stirring member rotates the rotating shaft in one direction to stir the rice in the rice washing tank with water. The lower end of the upper part of the rice bowl is inclined so that it rotates around the rotation axis when the upper part of the rice is being washed.

Thereby, the rice washing apparatus can wash | clean the rice in a rice washing tank uniformly by encouraging circulation of the up-and-down direction of rice.
Moreover, this rice washing apparatus discharge | releases rice with water addition / decrease from the lower part of a rice washing tank, after the rice washing by a stirring member is complete | finished.
JP 2002-273241 A

For example, there is a rice washing apparatus in which when the rice washing is completed and the rice is discharged from the rice washing tank together with water addition / reduction, the stirring member is rotated to discharge the rice while loosening the rice.
However, in the conventional rice washing apparatus, if the stirring member is rotated at the time of rice removal, the rice moves in a direction in which the rice is lifted upward, which causes a problem of hindering the rice removal.
Therefore, the present invention is capable of uniformly washing the rice in the rice washing tank by circulating the rice vertically in the rice washing tank by lifting the rice in the rice washing tank by the stirring member at the time of washing the rice. It is an object of the present invention to provide a rice washing apparatus that can rotate rice agitating member sometimes.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the present invention is a rice washing tank that can contain rice and water, and is disposed on the center side of the rice washing tank and is driven to rotate about a vertical axis, and is fixed to the rotating shaft. And a stirring member that stirs the rice in the rice washing tank together with water, and includes a motor that drives the rotating shaft to freely rotate in the forward and reverse directions, and the stirring member moves the rice upward by forward rotation of the rotating shaft, It has an inclined portion bent in the forward rotation direction so as to move the rice downward by reversing the rotation axis.
According to this, by providing the inclined portion on the stirring member, when the rotating shaft rotates forward, the inclined portion rotates around the rotating shaft so as to lift the rice in the rice washing tank, and the rice is washed in the rice washing tank. Rice can be washed while circulating in the vertical direction. As a result, the rice washing apparatus can perform uniform rice washing in the rice washing tank. Further, when the rice is drained after washing, the inclined part rotates by reversing the rotation shaft so that the rice in the washing tank is pushed downward, thereby moving the rice efficiently downward for a short time. To be able to drain the rice.

  Further, the present invention provides a rotating shaft that is disposed on the center side of the rice washing tank and is driven to rotate about an axis in the vertical direction in a rice washing tank that can contain rice and water, A stirring member that is fixed and stirs the rice in the rice washing tank together with water by rotating the rotating shaft, and the stirring member includes a first arm portion extending radially outward from the rotating shaft; A second arm portion that extends downward from the extending end of the first arm portion, and the second arm portion moves downward so as to lift the rice when the rotating shaft rotates forward. It has an inclined part which shifts in the normal rotation direction, and the rotation axis is made reversible.

  According to this, by providing the inclined portion on the second arm portion of the stirring member, when the rotating shaft rotates forward, the inclined portion rotates around the rotating shaft so as to lift the rice in the rice washing tank, The rice can be washed while circulating in the rice washing tank in the vertical direction. As a result, the rice washing apparatus can perform uniform rice washing in the rice washing tank. Further, when the rice is discharged after washing, the inclined part of the second arm part rotates so as to push down the rice in the rice washing tank by reversing the rotation shaft, thereby efficiently lowering the rice downward. You can move the rice in a short time.

  According to the present invention, at the time of washing rice, by rotating the stirring member in the normal direction, the rice can be circulated in the vertical direction in the washing rice tank so that the rice in the washing rice tank can be washed uniformly. By reversing the members, the rice can be moved downward while loosening and can be discharged efficiently.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 3 shows an automatic rice cooker 2 that employs a rice washing device 1 according to an embodiment of the present invention. The automatic rice cooker 2 is a rice storage device 4, a rice washing device 1, and a main frame 3. The rice cooker 5 is provided side by side in the vertical direction.
The rice storage device 4 includes a rice storage box 7 inside a box-shaped case body 6, and a measuring device 8 that measures and discharges the rice inside the rice storage box 7. An operation panel 9 is provided at the front of the case body 6, and a control unit that controls the operation of the automatic rice cooker 2 is provided on the back side of the operation panel 9.

The rice cooker 5 is mounted on a detachable base 10 at the bottom of the main frame 3, and includes a gas-type, electric-type stove 11, an outer pot 12 provided on the stove 11, An inner hook 13 mounted on the hook 12 and a lid body 14 that covers the inner hook 13 are provided. A shutter that can be opened and closed is provided at the center of the lid body 14 and is inserted from the rice washing apparatus 1. Rice or the like can be received in the inner pot 13.
As shown in FIGS. 2 and 3, the rice washing apparatus 1 includes a rice washing tank 17 whose upper part is cylindrical and whose lower part is a downward tapered (inverted conical) funnel part, and the lower end side of the rice washing tank 17. A rice drain valve 19 that opens and closes the rice drain port 18 formed in the water, a water supply means 21 for supplying water into the rice washing tank 17, a stirring member 22 for stirring the rice together with water in the rice washing tank 17, and the stirring member 22 rotating. And a rotating shaft 23 to be moved.

A drainage jacket 25 is provided at the lower portion of the rice washing tank 17, and a filter body such as a net or punching metal that allows rice to pass soot and water but not rice is provided in the drainage jacket 25. A drainage box 28 is connected to the via a drainage pipe 27.
The water in the washing tank 17 can pass through the filter body and be discharged from the drain jacket 25 through the drain pipe 27 and the drain box 28, and the drain box 28 has a drain valve for opening and closing the drain pipe 27. Has been.
As shown in FIG. 1, an overflow port 29 is formed on the upper side surface of the rice washing tank 17, and an upper portion of a drain pipe 30 in the vertical direction is connected to the overflow port 29, and a lower end of the drain pipe 30 is a drain box. 28. Therefore, when the water in the rice washing tank 17 reaches the overflow port 29, the water is discharged from the overflow port 29 to the outside through the drain pipe 30 and the drain box 28.

The water supply means 21 includes a water supply 32 such as a nozzle and a shower provided in the upper part of the rice washing tank 17, and the water supply 32 is connected to a pressure water source such as a water supply or a water storage tank via a water supply pipe 33. Yes.
The rice draining valve 19 is formed in a conical shape, and its upper end is connected to the lower end of the operation shaft 35. The operation shaft 35 is arranged in the vertical direction at the center of the rice washing tank 17 and has an upper end protruding from the rice washing tank 17 and connected to a driving mechanism (not shown) having a cam, a crank mechanism, a motor, and the like. It comes to be moved. The rice removal valve 19 is also moved up and down by the vertical movement of the operation shaft 35. When the operation shaft 35 is raised, the rice removal valve 18 is closed, and when it is lowered, the rice removal port 18 is opened.

The rotating shaft 23 is disposed on the center side of the rice washing tank 17 and can be driven to rotate about the vertical axis. The stirring member 22 is fixed to the rotating shaft 23.
The rotating shaft 23 is formed in a cylindrical shape, and the operation shaft 35 is inserted into the cylinder so as to be slidable up and down and relatively rotatable.
The rotary shaft 23 is connected to a drive mechanism 24 having a bevel gear mechanism 24a, a motor 24b, and the like, and rotates around the axis by the drive mechanism 24. The motor 24b of the drive mechanism 24 has a drive shaft that can be rotated forward and backward. Accordingly, the rotary shaft 23 can rotate forward (in the direction indicated by the symbol X in FIG. 2) and freely rotate around the axis. Yes.

The stirring member 22 is made of a solid or hollow bar having a circular cross section, and a plurality of the stirring members 22 (five in the illustrated example) are provided radially with respect to the rotating shaft 23.
The stirring member 22 includes a first arm portion 37 that extends radially outward from the rotation shaft 23, and a second arm portion 38 that extends downward from the extending end of the first arm portion 37. ing. Each stirring member 22 has different lengths of the first arm portion 37 and the second arm portion 38. Hereinafter, as shown in FIG. 2, the shortest stirring member 22 of the first arm portion 37 is referred to as a first stirring member 22a, and the first stirring member 22a is rotated counterclockwise around the rotation shaft 23, respectively. 2 stirrer 22b, 3rd stirrer 22c, 4th stirrer 22d, and 5th stirrer 22e.

The first arm portion 37 of each stirring member 22 (22a to 22e) extends outward in a substantially horizontal direction from the rotary shaft 23 facing in the vertical direction, and the second arm portion 38 is the first arm. A vertical portion 39 extending substantially vertically downward from the extending end of the portion 37, and an inclined portion 40 bent from the vertical portion 39 so as to follow the inclination of the inner surface of the funnel portion of the rice washing tank 17. .
Furthermore, as shown in FIG. 1, the inclined portions 40 of the first to third and fifth stirring members 22 a to 22 c and 22 e are moved in the forward rotation direction of the rotating shaft 23 as going downward from the lower end of the vertical portion 39. It is bent and formed in an inclined shape that moves toward it.

  As described above, when the inclined member 40 is formed in the stirring member 22 to rotate the rotating shaft 23 in the normal direction so that the stirring member 22 stirs the inside of the rice washing tank 17, the inclined portion 40 has a distal end that is more proximal than the proximal end. Is also protruding in the forward rotation direction, the rice on the lower side of the rice washing tank 17 is lifted upward and moved to the upper side of the rice washing tank 17. The rice that has moved upward moves downward again in the process of stirring by the stirring member 22, is further lifted by the stirring member 22, and repeats this up and down movement. As a result, the rice in the rice washing tank 17 is circulated and washed in the vertical direction during stirring, so that the rice can be evenly washed in the rice washing tank 17.

When the rice washing operation by the agitating member 22 proceeds, the water in the rice washing tank 17 is mixed with the turbid water, and the stirring member 22 lifts the rice to the upper side of the rice washing tank 17, thereby Since the rice can be washed with clean water that is not relatively cloudy, the absorption of the rice brine can be greatly reduced. Therefore, the rice thus washed can be cooked deliciously.
Moreover, the 1st-3rd, 5th stirring member 22a-22c, 22e can move the rice in the rice washing tank 17 below by reversing | rotating the rotating shaft 23 at the time of rice removal. That is, the inclination part 40 provided in the 2nd arm part 38 of the 1st-3rd, 5th stirring member 22a-22c, 22e is set so that the front-end | tip may reverse | retreat to the reverse rotation direction of the rotating shaft 23 rather than the base end. Therefore, when the rotary shaft 23 is reversed, the rice in the rice washing tank 17 is moved downward. Thereby, the rice-washing apparatus 1 can perform rice draining in a short time.

As shown in FIG. 1, the inclined portion 40 formed on the second arm portion 38 of the fourth stirring member 22 d is merely formed in an inclined shape that follows the inclination of the inner surface of the funnel portion of the rice washing tank 17. Yes, as in the first to third and fifth stirring members 22a to 22c and 22e, they are not inclined so as to move in the forward direction as they go downward.
Thus, you may make it include in the some stirring member 22 provided in the rotating shaft 23 what is not the inclined shape which transfers to a normal rotation direction as the inclination part 40 goes below. In addition, you may form the inclination part 40 of this 4th stirring member 22 in the inclined shape which transfers to a normal rotation direction as it goes below.

As shown in FIGS. 1 and 2, the rotary shaft 23 is provided with a sub-stirring member 41 that stirs the lower side of the rice washing tank 17 in addition to the first to fifth stirring members 22 a to 22 e.
The sub-stirring member 41 has a rod shape, is disposed between the third stirring member 22c and the fourth stirring member 22d, and extends linearly downward from the rotary shaft 23 from the upper side to the lower end side. At the same time, the lower end side is bent along the upper surface of the rice removal valve 19.
The substirring member 41 can suitably stir the lower rice in the rice washing tank 17 during the rice washing, and after the rice washing, when the rice discharge valve 19 is opened and the rice and water are discharged, the substirring member 41 is rotated. However, by opening the rice drain valve 19, it is possible to drain rice while loosening the rice clogged under the rice washing tank 17, and it is possible to prevent residual rice from being produced on the rice drain valve 19.

A series of operations of the automatic rice cooker 2 configured as described above will be outlined. First, after inputting data such as a desired amount of rice cooking, water addition / decrease, soaking time, steaming time, cooking time, etc. through the operation panel 9, when the operation is started, the measuring device 8 in the rice storage device 4 is activated and the desired amount is obtained. The rice is weighed and put into the rice washing tank 17 .
Thereafter, in the rice washing tank 17, the rice washing process is started, the stirring member 22 is operated, and water is supplied from the water supply means, and the rice is washed with stirring. At this time, muddy water is simultaneously discharged from the drainage jacket 25. In the rice washing tank 17, the stirring member 22 can stir the rice almost entirely up and down, so that the whole rice in the rice washing tank 17 can be washed almost uniformly, so that delicious rice can be cooked in the rice cooking work as a post process. become.

After performing the water washing operation for a predetermined time, the water supply is stopped, and the agitation operation is performed by stirring with the agitating member 22, and the water washing operation and the rice polishing operation are repeated.
Also in this polishing operation, the stirring member 22 can be used to sharpen substantially uniformly over the top and bottom of the rice washing tank 17. Thereafter, the drainage from the drainage jacket 25 is stopped, and the turbid water is drained from the overflow port 29 by supplying water from the water supply means 21 to complete the rice washing process. When the rice washing process is completed, all the water in the rice washing tank 17 is drained from the drainage jacket 25.
Then, the water supply means 21 performs water addition / reduction through a predetermined colander raising process, and the rice and water addition / reduction water are introduced into the inner pot 13 of the rice cooking device 5 by opening the rice removal valve 19, and the process proceeds to the rice cooking process.

The present invention is not limited to the above-described embodiment, and the design can be changed as appropriate. For example, in the above embodiment, the stirring member 22 is formed in a rod shape, but may be formed in a blade plate shape or a comb shape. Moreover, the structure used not only as employ | adopting the rice-washing apparatus 1 as one structure of the automatic rice cooker 2 like the said embodiment may be sufficient.
The first arm portion 37 of the stirring member 22 is not limited to the one that extends horizontally from the rotation shaft 23, and may be formed to be inclined downward or upward as it goes outward in the rotational radial direction from the rotation shaft 23. Good.

  Further, the second arm portion 38 of the stirring member 22 is not formed with the vertical portion 39 extending substantially vertically downward, and the rotation shaft 23 of the rotating shaft 23 extends downward from the extending end of the first arm portion 37. You may form the inclination part 40 which transfers to a normal rotation direction.

  The present invention can be used for a rice washing device, a rice cooker equipped with a rice washing device, and the like.

It is a cross-sectional side view of a rice washing tank. It is a top view of a rice washing tank. It is a front view of the automatic rice cooker using the rice washing apparatus concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rice-washing apparatus 17 Rice-washing tank 22 Agitation member 23 Rotating shaft 24 Motor 37 1st arm part 38 2nd arm part 40 Inclination part

Claims (2)

In a rice washing tank (17) capable of containing rice and water, a rotating shaft (23) disposed on the center side of the rice washing tank (17) and driven forward and backward around an axis in the vertical direction, A plurality of stirring members (22) fixed radially to the rotating shaft (23) and stirring the rice in the rice washing tank (17) with water;
It said plurality of agitating members (22) lifts the rice upward by normal rotation axis (23) at the time of rice washing to move the rice by Rukoto downward reverses rotation axis (23) to discharge rice during Therefore , the lower side has an inclined part (40) located in the forward rotation direction side rather than the upper side, The rice washing apparatus characterized by the above-mentioned. The rice washing tank (17) is formed in a funnel portion having a cylindrical upper portion and a lower tapered portion in the lower portion, and the plurality of stirring members (22) extend from the rotating shaft (23) to the radially outward side. Are different,
The inclined portion (40) of each stirring member (22) is close to the axis of the rotating shaft (23) as it goes downward along the inner surface of the funnel portion of the rice washing tank (17). The rice washing apparatus according to claim 1.

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