JP4494376B2 - Rice washing machine - Google Patents

Description

  The present invention relates to a rice washing machine.

Conventionally, it has a rice storage for storing rice and a rice washing tank for washing rice, weighs the rice in the storage rice, supplies it to the rice washing tank, rinses the rice in the rice washing tank, and adds water. A rice washing apparatus is known in which this is dropped and supplied to an inner pot disposed on the lower side of the rice washing tank.
This type of rice washing apparatus conveys rice by air. For example, in the rice cooker shown in Patent Document 1, the rice storage is equipped with a blower that sucks the air in the rice storage and creates negative pressure at the top, and the rice storage and storage outside the machine. And a suction duct connecting the two.

According to the rice cooker, an air flow that flows from the rice storage to the rice storage is formed by operating the blower to make the rice storage negative, and the air in the rice storage stores the rice stored in the rice storage. Pneumatically transported to rice storage.
JP-A-8-140846

By the way, the rice stored in the rice reserves or the like often contains rice to which rice cakes, rice husks, etc. (hereinafter referred to as rice cakes) are attached, and these rice cakes are usually removed by washing rice. .
However, according to the above rice cooker, the blower is connected to the rice storage and sucks the rice before washing, and the blower has an exhaust port outside the rice storage, so the air sucked by the blower is There was a problem that soot and the like were included, and the soot was released into the air by discharging this air to the outside as it was.
Therefore, the present invention provides a rice washing machine that can remove rice cake and the like from the air when the air carrying the rice is discharged.

In order to achieve the above object, the present invention takes the following technical means.
That is, the technical means for solving the problems in the present invention are a rice reserve F, a rice storage 2 connected to the rice reserve F, and a rice washing tank for washing rice supplied from the rice reserve 2 4 and a rice washer equipped with an air flow generator 41 that sucks air in the rice storage 2 and forms an air flow that flows the rice into the rice storage 2 from the rice reserve F.
An exhaust device 61 for discharging the air in the rice storage 2 sucked by the air flow generator 41 is provided below the rice washing tank 4, and the exhaust device 61 is connected to the air flow generator 41. And a casing 63 having an exhaust port 62 and a filter 64 covering the exhaust port 62.

According to this, the air of the rice storage 2 sucked by the air flow generator 41 is discharged after passing through the filter 64 of the exhaust device 61, and soot and the like in the air are removed by the filter 64. It becomes.
Further, since the exhaust device 61 is located below the rice washing tank 4, the filter 64 can be easily replaced.
In addition, another technical means for solving the problems in the present invention includes a rice storage 2 for temporarily storing rice, and a rice washing tank 4 for washing the rice supplied from the rice storage 2. In the rice washing machine equipped with an air flow generator 41 that sucks air in the rice washing tank 4 and forms an air flow for flowing rice from the rice storage 2 into the rice washing tank 4,
Below the rice washing tank 4, an exhaust device 61 for discharging the air in the rice washing tank 4 sucked by the air flow generating device 41 is provided, and the exhaust device 61 is connected to the air flow generating device 41. A casing 63 having an exhaust port 62 and a filter 64 covering the exhaust port 62 are provided.

The exhaust port 62 is opened in an inclined air discharge portion 75 provided in the casing 63, and the air discharge portion 75 has a filter holding portion 77 that allows the filter 64 to be inserted / removed in the vertical direction from above. It is preferable to be provided. Thereby, the area of the exhaust port 62 can be made as large as possible, and a large amount of air can be discharged at one time, and the filter 64 can be easily attached and replaced. Further, the air discharge part 75 is formed in a cross-sectional shape having upper and lower inclined parts 76a and 76b by causing the central part in the vertical direction to bulge out from the upper and lower end parts, and the filter 64 has upper inclined parts 76a and 76b. The upper filter 64a covering the exhaust port 62 formed on the lower side and the lower filter 64b covering the exhaust port 62 formed on the lower inclined portions 76a and 76b. The filter holding unit 77 holds the upper filter 64a. It is preferable to include an upper filter holding portion 77a and a lower filter holding portion 77b that holds the lower filter 64b.

According to this, the size of the exhaust port 62 can be ensured by forming the air discharge portion 75 in a cross-sectional shape. Further, by providing the filter 64 separately on the upper and lower sides, the size of the single filter 64a, 64b can be reduced, thereby reducing the space for inserting / removing each filter 64a, 64b into / from the exhaust wall. As a result, the entire apparatus can be made compact.
The casing 63 has a front chamber case 65 connected to a duct 60 extending from the air flow generator 41, and an exhaust chamber case 66 having a larger volume than the front chamber case 65 and having the air discharge portion 75. The front chamber case 65 has a cross-sectional area larger than that of the duct 60, and the exhaust chamber case 66 has a communication area 73 having an area larger than the cross-sectional area of the duct 60. It is preferable to communicate with the front chamber case 65.

According to this, while the air discharged from the airflow generator 41 passes through the duct 60, the wind force is weakened due to the in-road defects. Further, since the cross-sectional area of the front chamber case 65 is larger than the cross-sectional area of the duct 60, the air in the duct 60 flows into the front chamber case 65 from the duct 60, thereby further weakening the wind power. Further, since the area of the communication port 73 is larger than the cross-sectional area of the duct 60 and the volume of the exhaust chamber case 66 is larger than that of the front chamber case 65, the air flowing into the exhaust chamber case 66 through the communication port 73 is further wind power. Is weakened.
Therefore, the air discharged from the air flow generator 41 is depressurized so that the wind force is significantly weakened before being discharged from the exhaust device 61, and this ensures that the dust or the like rises due to the storm from the exhaust device 61. Will be prevented.

  According to the present invention, when the air carrying rice is discharged, soot and the like can be removed from the air.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
As shown in FIG. 7 and FIG. 8, the rice washer 1 according to the present embodiment is a rice washer that receives and measures rice from the uppermost rice storage 2 and the weighing machine 3 provided at the bottom of the rice storage 2. A tank 4 and a work table (working unit) 5 arranged directly below the rice washing tank 4 are provided. The rice storage 2, the weighing machine 3, the rice washing tank 4 and the work table 5 are vertically arranged in a machine frame 40. is doing.
In the rice washing machine 1, by placing the inner pot U of the rice cooker on the work table 5, the rice that has been washed in the rice washing tank 4 by the inner pot U can be drained.

In addition, the rice washing machine 1 can be recognized as a rice cooker by arranging a rice cooker on the work table 5 instead of the inner pot U.
As shown in FIGS. 1 and 6, the rice storage box 2 provided at the uppermost part of the machine casing 40 has a bottom part formed in a funnel shape, and the inside forms a rice storage part 2 a for temporarily storing rice. is doing. The rice storage portion 2a is formed to be hermetically sealed.
The weighing machine 3 includes a hollow drum 43 that is rotated in one direction by a motor. The spiral drum 43 is formed with a helical cut-out port. The drum type that falls to the head is adopted.

A lower outlet 44 communicating with the rice washing tank is provided on the lower surface of the weighing machine 3, and a shutter 45 that opens and closes the lower outlet 44 in conjunction with the rotation of the hollow drum 43 is provided at the lower outlet 44. Yes. The weighing machine 3 can make the rice storage portion 2a hermetically sealed simply by pointing the spiral cut-out port of the hollow drum 43 downward, but by closing the lower outlet 44 with the shutter 45, the rice storage portion 2a The sealed state is made more reliable.
An airflow generator 41 is attached to the rice storage 2.
A blower or the like is used for the air flow generator 41, the suction side faces the rice storage portion 2 a, and the discharge side is outside the rice storage 2. By operating the air flow generating device 41 with the rice storage unit 2a sealed, air in the rice storage unit 2a of the rice storage 2 is sucked, and thereby the rice storage unit 2a becomes negative pressure.

  As shown in FIG. 6, the rice storage box 2 is arranged immediately above the rice washing tank 4, and the equipment arranged above the rice washing tank 4, such as the rice storage box 2, the weighing machine 3, and the control unit 8 for controlling them. Is covered with a cover 51, and the back portion of the cover 51 includes a first rear wall portion 52 extending in the vertical direction along the back surface of the rice storage 2 and a second rear wall extending up from the back surface of the machine frame 40. A portion 53 and an offset portion 55 formed in a step shape by connecting the first rear wall portion 52 and the second rear wall portion 53 by a flat plate portion 54 are provided. By forming the offset portion 55, a gap is provided between the rear surface of the rice storage 2 and the rear surface of the machine frame 40, and the rice storage 2 and the rice storage F are connected to the clearance. Rice suction duct 42 is provided.

The rice suction duct 42 is of a bend type, and one end thereof penetrates the first rear wall 52 and the rear wall of the rice storage 2 and penetrates into the rice storage portion 2a of the rice storage 2. As shown by an arrow in FIG. 1, the rice storage 2 is rotatable about the axis. Further, by connecting a suction pipe to the other end of the rice suction duct 42 and connecting the suction pipe to the rice storage F, the rice storage F and the rice storage 2 are connected via the rice suction duct 42. Connected.
As shown in FIG. 6, the rice storage 2 is provided with a pair of upper and lower sensors 49U and 49D for detecting the amount of stored rice. The upper sensor 49U has an upper limit and the lower sensor 49D has a lower limit. The air flow generator 41 is controlled via the control unit 8 by the respective sensors 49U and 49D. Specifically, when the remaining amount of rice in the rice storage portion 2a decreases and the sensor 49D detects it, the air flow generator 41 is operated to supply rice, and the supplied rice is supplied to the sensor 49U. When it reaches, the air flow generator 41 is stopped.

The weighed rice discharged from the lower outlet 44 of the weighing machine 3 is dropped and supplied to the rice washing tank 4. A measuring means 7 for measuring the moisture content (amount) of the weighed rice is provided in the upper part of the rice washing tank 4, and the water inhalation (peeling time) into the rice is taken into account based on the measurement result of the measuring means 7. Thus, the water amount can be controlled by the control unit 8.
The rice washing tank 4 is formed in a cylindrical shape having a lower portion formed in a funnel shape. A rice draining port 9 is provided at the bottom of the rice washing tank 4, and the rice draining port 9 can be opened and closed by an inverted conical rice draining valve 10.

A cylindrical rotating shaft 10 a is provided on the longitudinal central axis of the rice washing tank 4. The upper portion of the rotary shaft 10 a is supported on the top plate 4 a of the rice washing tank 4 via a bearing 12. Further, the rotating shaft 10a is rotatable by a motor and a winding body disposed on the lower side of the rice storage box 2, and the stirring shaft 15 is provided in a radial arrangement on the rotating shaft 10a. It is possible to wash (ken rice) the weighed rice dropped for a certain period of time.
Further, the rotary shaft 10 a is formed in a hollow cylindrical shape, and a valve rod 16 is inserted through the rotary shaft 10 a and attached to the rice draining valve 10 at the lower end of the valve rod 16. The upper end portion of the valve stem 16 is connected to a lifting / lowering means such as a cam, a link, and a motor. By operating the lifting / lowering means, the rice draining valve 10 is moved up and down, thereby opening and closing the rice draining port 9. It is free.

As shown in FIG. 1, the rice washing tank 4 is provided with a water supply means 17 connected to a water supply system, and the amount of water can be adjusted by controlling the water supply time and the like with a control unit 8.
Further, a drainage jacket 21 is provided in the lower part of the rice washing tank 4, and a filter body made of a net, punching metal, or the like that allows spillage and water to pass but does not allow rice to pass therethrough is provided in the drainage jacket 21. .
A drainage box 23 is connected to the drainage jacket 21 via a lateral drainage pipe 22, and an open / close valve 22 a for opening and closing the end opening of the lateral drainage pipe 22 is built in the drainage box 23. In addition, a water discharge pipe 24 is connected to the drainage box 23. The rice washing tank 4 is connected to the overflow pipe 25 at the upper part, and the overflow pipe 25 is also connected to the drainage box 23.

The work table 5 includes a horizontal frame 28 and a hanging wall portion 29 extending downward from an end of the frame 28, and the inner pot U is placed on the frame 28, thereby washing the rice in the rice washing tank 4. Rice is received by the inner pot U.
By the way, an exhaust duct (duct) 60 is connected to the air flow generator 41, and the air in the rice storage portion 2 a sucked by the air flow generator 41 thereby exhausts through the inside of the air flow generator 41. It is discharged to the duct 60.
As shown in FIG. 1, the exhaust duct 60 connected to the airflow generator 41 is accommodated in one of the left and right pillars 40 a constituting the machine casing 40 (on the left side in the present embodiment). In this state, it extends to the lower part of the machine casing 40 and is connected to an exhaust device 61 disposed below the work table 5.

As shown in FIG. 5, the exhaust device 61 includes a casing 63 that is connected to the exhaust duct 60 and includes an exhaust port 62, and a filter 64 that covers the exhaust port 62.
The casing 63 includes a front chamber case 65 connected to the exhaust duct 60, and an exhaust chamber case 66 connected to the front chamber case 65. The casing 63 faces downward from the hanging wall portion 29 extending from the rear side of the gantry 28. The exhaust chamber case 66 is attached to one surface (front surface in the present embodiment) of the upright plate 67 that extends and the front chamber case 65 is connected to the exhaust chamber case 66 on the other surface (rear surface in the present embodiment). It is attached and formed in an overlapped state.

As shown in FIGS. 4 and 5, the front chamber case 65 is formed in a box shape in which a surface facing the upright plate 67 is opened by pressing a sheet metal, and an end portion on the opening side of each peripheral wall 68. Is formed with a flange portion 69 projecting outward. The front chamber case 65 is attached to the standing plate 67 by fastening the flange portion 69 to the standing plate 67 via a fastener such as a bolt. The front chamber case 65 is positioned between the pair of left and right columns 40a by being attached to the standing plate 67.
A cylindrical member 60a is fitted into the through hole 68a formed in the left peripheral wall 68, and the tip of the exhaust duct 60 is connected to the cylindrical member 60a. The front chamber case 65 has a larger cross-sectional area than the exhaust duct 60.

The cross-sectional area refers to the cross-sectional area of the surface perpendicular to the inflow direction of the air flowing into the exhaust chamber case 66 from the exhaust duct 60 and the exhaust duct 60. Specifically, the rice washing as shown in FIG. The cross-sectional area of the exhaust duct 60 and the exhaust chamber case 66 in the side cross section of the machine 1 is indicated.
As shown in FIGS. 2 and 5, the exhaust chamber case 66 is formed in a box shape having an opening 71 in the wall portion 70 joined to the upright plate 67. The opening 71 is formed to have substantially the same size as the opening of the front chamber case 65. In addition, an opening 72 having substantially the same size as the opening and the opening 71 is formed in the central portion of the standing plate 67, and the exhaust is exhausted to the standing plate 67 in a state where these openings and the openings 71 and 72 are overlapped. A chamber case 66 and a front chamber case 65 are attached.

As a result, the exhaust chamber case 66 is communicated with the front chamber case 65 through the communication port 73 formed by overlapping the openings and the openings 71 and 72. Further, the volume of the exhaust chamber case 66 is larger than that of the front chamber case 65.
As shown in FIGS. 3 and 5, the exhaust chamber case 66 has an air exhaust part 75 having an exhaust port 62 at a position facing the wall part 70.
The air discharge portion 75 is formed in a cross-sectional shape having upper and lower inclined portions 76a and 76b with the vertical center portion bulging from the upper and lower ends, and a pair of left and right exhausts on the upper inclined portion 76a. In addition to having an opening 62, the lower inclined portion 76b has a pair of left and right exhaust ports 62. These exhaust ports 62 are covered with a filter 64 from the outside of the exhaust chamber case 66. The filter 64 includes an upper filter 64a that covers the pair of left and right exhaust ports 62 formed in the upper inclined portion 76a, and a lower filter 64b that covers the pair of left and right exhaust ports 62 formed in the lower inclined portion 76b. ing.

The filter 64 is held by a filter holding unit 77 provided in the air discharge unit 75. The filter holding unit 77 includes an upper filter holding unit 77a that holds the upper filter 64a, and a lower filter holding unit 77b that holds the lower filter 64b.
The upper filter holding part 77a is opposed to the opposing wall part 78 facing the inclined part 76a on the upper side of the air discharge part 75 through a slight interval, and the tongue piece part 79 protruding from both side parts of the opposing wall part 78. A bent portion 78a bent from the lower end of the wall portion 78 toward the inclined portion 76, and the tongue piece 79 is inclined via a fastener such as a bolt in a state where the bent portion 78a is in contact with the inclined portion 76a. By fastening to the portion 76, the upper filter holding portion 77 a is attached to the upper inclined portion 76 a of the air discharge portion 75.

As a result, the upper filter holding portion 77a is opened upward and attached to the inclined portion 76a. As shown in FIG. 5, the gap S is moved toward the gap S between the upper filter holding portion 77a and the inclined portion 76a. By inserting the upper filter 64a from above, the upper filter 64a is deployed with the exhaust port 62 covered. Further, the filter 64 can be easily removed by grasping the grip 80 formed on the upper part of the upper filter 64a and pulling the upper filter 64a upward.
The configuration of the lower filter holding portion 77b and the configuration of attaching the lower filter 64b to the lower inclined portion 76b are the same as in the case of the upper filter holding portion 77a.

As shown in FIGS. 2 and 5, a plurality (three in the present embodiment) of slits 81 are formed in the opposing wall portions 78 of the filter holding portions 77a and 77b at positions facing the exhaust ports 62. Has been. Thereby, the air in the exhaust chamber case 66 passes through the exhaust port 62 → the filter 64 → the slit 81 and is then discharged to the outside of the exhaust device 61.
Further, as shown in FIG. 5, a convex portion 83 is provided at the center of the surface of each filter 64a, 64b, and a concave portion 84 is formed on the back surface of the opposing wall portion 78 of the filter holding portion 77a, 77b. By inserting 64a and 64b into the gap S and engaging the convex portion 83 with the concave portion 84, the filters 64a and 64b are respectively held by the filter holding portions 77a and 77b.

  The present embodiment is configured as described above, and when the air flow generator 41 is operated in a state where the suction pipe connected to the rice suction duct 42 is connected to the rice reserve F, the rice storage 2 The rice storage part 2a becomes a negative pressure, whereby the rice is conveyed (sucked) from the rice reserve F to the rice storage part 2a of the rice storage 2 by air. The air flow that conveys the rice reduces the speed when it flows into the rice container 2a. Thereby, the rice sucked by the air is stored in the rice storage portion 2a, while the air is discharged to the outside of the rice storage box 2 through the air flow generator 41. By conveying the rice in this manner, the rice can be reliably supplied to the rice storage 2 without spilling even when the rice reserve F is below the rice storage unit 2a.

Further, the air in the rice storage portion 2 a sucked by the air flow generator 41 flows into the exhaust duct 60 through the inside of the air flow generator 41, and is led to the exhaust device 61 by the exhaust duct 60. It is discharged through the device 61.
The air in the rice storage unit 2a sucked by the air flow generator 41 includes rice cakes and the like attached to the rice in order to carry the rice by air, but the filter 64 is discharged by being discharged through the exhaust device 61. Therefore, the filter 64 removes soot and the like. Thereby, clean air is discharged from the exhaust device 61.

Further, since the air discharge portion 75 of the exhaust chamber case 66 is formed in a square shape in cross section, the exhaust port 62 and the filter 64 can be formed larger than when the exhaust port 62 is formed on a flush wall. Therefore, a large amount of air can be discharged at a time, and exhaust efficiency is improved.
Further, the filter 64 may be clogged within a short period of time to remove wrinkles and the like. However, since the exhaust device 61 is disposed below the work table 5 that is under the operator's feet, The filter 64 can be easily replaced by a person.
In addition, when replacing the filter 64, the upper filter 64a and the lower filter 64b can be removed separately. For this reason, the present embodiment is necessary for pulling out the filter 64 upward as compared with an exhaust device that can be removed by pulling the filter upward and covering the entire surface of the air discharge part with one filter. The height of the space between the exhaust device 61 and the work table 5 can be halved, and the space between the exhaust device 61 and the work table 5 can be narrowed, so that the rice washing machine 1 as a whole can be made compact. It will be.

Further, since the upper filter 64a is arranged along the upper inclined portion 76a of the air discharge portion 75, an operator located in front of the work table pulls up the grip 80 of the upper filter 64a to the back. The upper filter 64a can be removed. Further, since the lower filter 64b is provided along the lower inclined portion 76b, the operator can remove the lower filter 64b by pulling up the grip 80 of the lower filter 64b.
In this way, in both filters 64a and 64b, the locus for inserting / removing the other filter 64b does not overlap with the locus for inserting / removing the other filter 64a as shown by the one-dot chain line in FIG. For example, when replacing the upper filter 64a, the lower filter 64b does not get in the way.

  In addition, the air flowing into the exhaust duct 60 from the air flow generator 41 is weakened by the wind force due to in-pipe defects while passing through the exhaust duct 60. Since the cross-sectional area of the front chamber case 65 is larger than the cross-sectional area of the exhaust duct 60, the air in the exhaust duct 60 flows into the front chamber case 65 from the exhaust duct 60, thereby further reducing the wind force. Further, since the area of the communication port 73 is larger than the cross-sectional area of the exhaust duct 60 and the volume of the exhaust chamber case 66 is larger than the front chamber case 65, the air flowing into the exhaust chamber case 66 through the communication port 73 is further increased. Wind power is weakened.

Accordingly, the air discharged from the air flow generator 41 is significantly weakened (depressed) by the wind power before being discharged from the exhaust device 61, so that dust or the like rises due to the exhaust from the exhaust device 61. Is surely prevented.
In the rice washing tank 4, after the rice is supplied from the weighing machine 3, the rice is fed by rotating the stirring bar 15 while supplying water to the rice with the on-off valve 22 a that opens and closes the horizontal drain pipe 22 being opened. The rice washing process of stirring and the polishing process of stopping the water supply and performing only the stirring are repeated, and then water is supplied in a state where the end opening of the horizontal drain pipe 22 is closed by the on-off valve 22a in order to allow floating dust to flow. Thus, an overflow process of draining water from the overflow pipe 25 at the top of the rice washing tank 4 is performed. And after stopping water supply and opening the on-off valve 22a and draining from the horizontal drain pipe 22, the on-off valve 22a is closed again, and water is added or subtracted. The rice that has been washed through this process is discharged into the inner pot U by opening the rice discharge valve 10.

FIG. 9 shows a second embodiment of the present invention. A rice washing machine 11 according to this embodiment includes a rice storage 2 for storing rice, and a weighing machine 3 for weighing rice in the rice storage 2. And a rice transport means 85 for transporting the weighed rice into the rice wash tank 4.
The rice conveying means 85 includes an air flow generator 41 made of a blower or the like, a rice supply pipe 86 communicating with the rice washing tank 4, and a suction pipe 87 disposed on the side of the rice washing tank 4. The suction pipe 87 communicates with the overflow pipe 25 that communicates with the rice washing tank 4 through the hose 90 and communicates with the suction side of the air flow generator 41 through the suction path 89. Further, the rice supply pipe 86 is communicated with the weighing rice storage case 3 a that receives the rice of the weighing machine 3 through the rice conveyance path 88.

With this configuration, the air flow generation device 41 of the second embodiment functions to suck air in the rice washing tank 4 and to air-transfer the rice in the measured rice storage case 3a to the rice washing tank 4. The air flow generator 41 is connected to the exhaust device 61 via the exhaust duct 60. The configurations of the exhaust duct 60 and the exhaust device 61 are the same as those in the first embodiment.
The exhaust device 61 is also disposed below the rice washing tank 4.
According to the second embodiment, when the air flow generator 41 is operated to suck the air in the suction pipe 87, the air in the rice washing tank 4 is sucked from the overflow pipe 25, the rice washing tank 4 becomes negative pressure, and the rice is conveyed. The rice in the weighed rice storage case 3 a is conveyed to the rice washing tank 4 by the air flow flowing into the rice washing tank 4 through the path 88 and the rice supply pipe 86. At this time, the drain port of the overflow pipe 25 also serves as a suction port for sucking the air in the rice washing tank 4.

Further, the air in the rice washing tank 4 sucked by the air flow generator 41 flows into the exhaust duct 60 through the air flow generator 41 and is led to the exhaust device 61 by the exhaust duct 60, and then the exhaust gas is discharged. It will be discharged out of the machine through the device 61.
In the said 2nd Embodiment, the air in the rice washing tank 4 attracted | sucked by the airflow generator 41 is not only the rice cake etc. which adhere | attached to this rice in order to attract | suck rice, but the air from the rice washing tank 4 For this reason, it contains moisture. However, since it passes through the filter 64 of the exhaust device 61 by being discharged through the exhaust device 61, soot and moisture are removed by the filter 64. Thereby, clean air is discharged from the exhaust device 61.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments. For example, it is possible to form the air discharge part 75 in an inclined shape over the whole by bulging the upper end part of the air discharge part 75 of the exhaust device 61 forward from the lower end part. Conversely, the lower end portion of the air discharge portion 75 may be swelled forward of the upper end portion, and the air discharge portion 75 may be inclined throughout.
Moreover, the structure which forms the inclined part 76 which has the exhaust port 62 over multiple steps | paragraphs by forming the air exhaust part 75 in multiple steps | paragraphs is also employable.

The present embodiment is also applied to the case where the air flow generator 41 is arranged below the work table 5 and the air flow generator 41 and the rice storage 2 or the rice washing tank 4 are connected by a duct member. Has the same effect as.
It is also possible to adopt a configuration in which the exhaust device 61 is attached to the air flow generator 41.

It is a perspective view which shows a part of rice washing machine of 1st Embodiment of this invention as a cross section. It is a front view of the lower part of a rice washing machine. It is a front view which shows the state which removed the filter and filter attachment part of the exhaust apparatus. It is a rear view of the lower part of a rice washing machine. It is a cross-sectional side view of an exhaust device. It is a side view of the upper part of a rice washing machine. It is a perspective view of a rice washing machine. It is a perspective view of the rice washing machine which removes and shows an inner pot and a lid. It is the schematic of the rice washing machine of 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rice washer 2 Rice storage 3 Weighing machine 4 Rice washing tank 5 Work table 40 Machine frame 41 Air flow generator 60 Exhaust duct 61 Exhaust device 62 Exhaust port 63 Casing 64 Filter 64a Upper filter 64b Lower filter 65 Front chamber case 66 Exhaust chamber Case 67 Standing plate 73 Communication port 75 Air exhaust part 76a Inclined part 76b Inclined part 77 Filter holding part 77a Upper filter holding part 77b Lower filter holding part

Claims (4)

Rice storage (F), rice storage (2) connected to the rice storage (F), rice washing tank (4) for washing rice supplied from the rice storage (2), and rice storage In the rice washer equipped with an air flow generator (41) that sucks air in the storage (2) and forms an air flow that flows the rice from the rice reserve (F) into the rice storage (2),
Provided below the rice washing tank (4) is an exhaust device (61) for discharging the air in the rice storage (2) sucked by the air flow generator (41), the exhaust device (61) A casing (63) connected to the airflow generator (41) and provided with an exhaust port (62); and a filter (64) covering the exhaust port (62) ;
The casing (63) has a front chamber case (65) connected to a duct (60) extending from the air flow generator (41), a volume larger than the front chamber case (65), and the exhaust port. Formed in communication with an exhaust chamber case (66) having (62),
The front chamber case (65) has a larger cross-sectional area than the duct (60), and the exhaust chamber case (66) has a communication port (73) having an area larger than the cross-sectional area of the duct (60). The rice washer is characterized in that it communicates with the front chamber case (65) through the rice washer. A rice storage (2) for temporarily storing rice and a rice washing tank (4) for washing the rice supplied from the rice storage (2), and sucking air in the rice washing tank (4) In the rice washing machine equipped with an air flow generator (41) that forms an air flow for flowing rice from the rice storage (2) into the rice washing tank (4),
Below the rice washing tank (4), an exhaust device (61) for discharging the air in the rice washing tank (4) sucked by the air flow generator (41) is provided, the exhaust device (61) A casing (63) connected to the airflow generator (41) and provided with an exhaust port (62), and a filter (64) covering the exhaust port (62) ;
The casing (63) has a front chamber case (65) connected to a duct (60) extending from the air flow generator (41), a volume larger than the front chamber case (65), and the exhaust port. Formed in communication with an exhaust chamber case (66) having (62),
The front chamber case (65) has a larger cross-sectional area than the duct (60), and the exhaust chamber case (66) has a communication port (73) having an area larger than the cross-sectional area of the duct (60). The rice washer is characterized in that it communicates with the front chamber case (65) through the rice washer. The exhaust port (62) is opened in an inclined air discharge part (75) provided in the casing (63), and the air discharge part (75) has a central part in the vertical direction bulging from the upper and lower end parts. The rice washer according to claim 1 or 2 , further comprising a filter holding portion (77) that allows the filter (64) to be inserted and removed in an up-down direction from above. The air discharge portion (75) is formed in a cross-sectional shape having inclined portions (76a, 76b) above and below the bulged vertical center portion, and the filter (64) is formed in the upper inclined portion (76a). And an upper filter (64a) that covers the exhaust port (62), and a lower filter (64b) that covers the exhaust port (62) formed in the lower inclined portion (76b). The rice washing machine according to claim 3, further comprising an upper filter holding part (77a) for holding the upper filter (64a) and a lower filter holding part ( 77b ) for holding the lower filter (64b). Machine.

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