JP2003144370A - Washer for dish, or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washer for dish, or the like, which can be installed even in a narrow room with a short width, eliminates a member for pressing the shoulders of turned-down dishes in the case of washing and prevents dirt from being stuck on the outer faces of the dishes. SOLUTION: An inner dish face washing means 13 capable of spouting water from the top ends of a shaft by planting a large number of bristles on the top end of the shaft under an intermittent conveyer 11 and an outer dish face washing means 14 equipped with a dish pressing member on the center of planted bristles by planting a large number of bristles while facing the inner dish face washing means 13 above the conveyer 11 are synchronously and oppositely elevated, the inner dish face washing means 13 is moved up and the outer dish face washing means 14 is moved up and rotated so that dishes 12 on the conveyer 11 can be washed.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to used tableware,
The present invention relates to another container cleaning device (hereinafter simply referred to as a device).

[0002]

2. Description of the Related Art As a conventional device, there is an automatic dish brush cleaning device of utility model registration No. 3068761 developed by the applicant. As shown in FIG. 9, this device uses a cleaning brush 5 that rotates the inner surface of the used tableware 2 conveyed by the intermittent conveyor 1 with a hydraulic turbine 4 of the tableware inner surface cleaning means 3 provided below the intermittent conveyor 1. , While spraying with water or hot water, and then the tableware 2 is intermittently conveyed to the intermittent conveyor 1.
Of the tableware outer surface cleaning means 6 provided above the intermittent conveyor 1 in the front of the rotation direction of the tableware.
Cleaning is performed by spraying water or warm water with the cleaning brush 8 rotating on the hydraulic turbine 7. While the tableware 2 is being washed by the tableware inner surface cleaning means 3 and the tableware outer surface cleaning means 6, the tableware 2 should not float, rotate, or move.
The outer surface of the tableware 2 is held by a tableware holder 9 composed of two bars. Further, hot water nozzles 10 for spraying hot water toward the dishes 2 from above and below the intermittent conveyor 1 are provided before and after the cleaning brush 8 of the dish outer surface cleaning means 6.

[0003]

In the above-mentioned conventional device,
The dish inner surface cleaning means 3 and the dish outer surface cleaning means 6 are located at different positions apart from each other, and the apparatus is longer by that much, which requires a large (long) place for installing the apparatus. Therefore, there is a demand for a device that can be installed in a narrow (short) installation site by shortening the device length.

Further, in the above conventional apparatus, it is necessary to hold the tableware 2 both when cleaning the inner surface of the tableware 2 and when cleaning the outer surface thereof.

Further, in the above-mentioned conventional apparatus, the used tableware stacked on the prone is separated one by one by the tableware feeder and placed on the intermittent conveyor. May be attached to the outer surface of the tableware, especially the shoulders,
When cleaning the inner surface, the outer surface of the tableware 2 is pressed by the tableware retainer 9, so that sticky dirt or the like is pressed against the outer surface of the dishware 2 by the tableware retainer 9 and strongly sticks, and can be sufficiently washed off by the tableware outer surface cleaning means 6 later. It may not be possible.

The present invention shortens the length of the apparatus, can be installed in a narrow (short) place, and eliminates the tableware holder that presses the shoulder portion of the outer surface of the tableware during cleaning, so that the outer surface of the tableware can be contaminated with dirt. The purpose is to provide a device that does not.

[0007]

[Means for Solving the Problems] An intermittent conveyor that sequentially conveys used tableware one by one in a prone state, and a tableware inner surface cleaning means below the table conveyor that cleans the inner surface of the tableware. Above and above the tableware inner surface cleaning means, the tableware cleaning means including the tableware outer surface cleaning means facing the tableware inner surface cleaning means with the intermittent conveyor interposed therebetween, the tableware inner surface cleaning means and the tableware outer surface cleaning means are moved up and down. On the contrary, an elevating means for moving up and down at the same time, a means for ejecting washing water to the dishes from above and below the intermittent conveyor in the traveling direction of the dishes, and a control for controlling the respective means. The dishwasher is composed of the dish and the vessel.

[0008] An intermittent conveyor that supports both ends of used tableware and intermittently conveys them one by one, and a hydraulic turbine located below the conveyor and connected to a hydraulic turbine and a drive shaft of the hydraulic turbine. Washing with a washing water lead-out hole for ejecting the water between the bristles, by implanting a large number of bristles with a linear material at the tip base part of the shaft provided with a water conduit for letting out water used for rotating A brush forms a dish inner surface cleaning means, is opposed to the dish inner surface cleaning means, is located above the intermittent conveyor, is connected to a hydraulic turbine and a drive shaft of the hydraulic turbine, and is flocked with a large number of linear members. The cleaning brush and the hydraulic turbine are fitted, and the tip of the cleaning brush is urged by a spring to protrude from the cleaning brush and press the center of the outer bottom of the tableware on the intermittent conveyor to support the tableware. And a dish pressing member for forming a dish outer surface cleaning means, and an elevating means for raising and lowering the dish inner surface cleaning means and the dish outer surface cleaning means at the same time, while raising and lowering the dish dish outer surface washing means is provided. In front of the cleaning means, a means for ejecting cleaning water from above and below the intermittent conveyor is provided to the dishes, and each of the means is controlled by a controller to wash the dishes on the intermittent conveyor.

The cleaning brush of the dish inner surface cleaning means and the cleaning brush of the dish outer surface cleaning means are rotated in opposite directions.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic explanatory diagram of the configuration of the apparatus according to the present invention. This apparatus comprises a tableware inner surface cleaning means 13 for cleaning the inner surface of a used tableware 12 which is conveyed to the conveyor 11 face down and stopped below the conveyor 11 which rotates intermittently, and a tableware 12 facing the table surface above the table. The tableware outer surface cleaning means 14 for cleaning the outer surface of the tableware 12 while pressing the central part of the outer surface bottom of the table, the cleaning brush of the tableware inner surface cleaning means 13, the cleaning brush of the tableware outer surface cleaning means 14, and the tableware holding pin are synchronized, and On the contrary, in the rotating direction of the raising / lowering means 15 for raising and lowering, and the conveyor 11, above and below in front of the two cleaning means 13, 14, there is hot water toward the inner and outer surfaces of the dishes 12 on the conveyor 1. It is provided with a jetting means 16 for jetting washing water to wash the dishes 12.

The conveyor 11 is provided with projections 17 at regular intervals for pushing the tableware 12 forward by its rotation.

As shown in FIG. 2, the dish inner surface cleaning means 13 comprises a cleaning brush 18 and a hydraulic turbine 19. The cleaning brush 18 includes a base 21 at the tip of a hollow shaft 20.
A large number of linear members 22 made of silicon rubber formed in the shape of a round or square bar are planted in the inner surface of the base body 21, and the cleaning water lead-out hole 2 communicating with the hollow of the shaft 20 is provided at the center or at a plurality of locations.
3 is provided. The hydraulic turbine 19 has a casing 24.
A water supply pipe 25 is attached to the water supply pipe 25, and wash water such as warm water is sent through the water supply pipe 25 to rotate the rotor 26.

The shaft 20 is fixedly connected to the shaft of the rotary blade 26 of the hydraulic turbine 19, and the wash water that rotates the rotary blade 26 of the hydraulic turbine 19 is passed through the hollow of the shaft 20 through the wash water outlet 23. It is jetted out of the base 21.

As shown in FIG. 3, the tableware outer surface cleaning means 14 is connected to a hydraulic turbine 27 and a drive shaft 28 of the hydraulic turbine 27, and has a bowl-shaped base 29 and a round or square bar-shaped body made of silicone rubber. Linear material 3 formed on
0 is inserted into the cleaning brush 31 in which a number of tips are planted in the direction of the center of the bowl-shaped portion and the drive shaft 28 of the hydraulic turbine 27, and the spring 32 causes the cleaning brush 31 of the cleaning brush 31 toward the center of the bowl-shaped portion of the base 29. Biased to protrude from the tip,
It is composed of an extendable and contractible tableware holding pin 33.

The tableware face washing means 14 descends to move the tableware 12
It is preferable to provide a means for ejecting cleaning water in the direction of the cleaning brush 31 abutting on the outer surface of the.

In the figure, 34 is a brush base fixing collar,
Reference numeral 35 is a brush boss.

In FIG. 4, the dish inner surface cleaning means 13 is lowered by the operation of the elevating means 15 described later, the tip of the linear member 22 of the cleaning brush 18 is separated from the inner surface of the dish 12, and at the same time the dish outer surface cleaning means 14 is raised. Wire material 30 of cleaning brush 31
Of the tableware 12 is separated from the inner surface of the tableware 12,
Shows the state in which the tip of the table stands apart from the center of the bottom of the tableware 12 (center of the inside of the thread twister) and stands by.

In FIG. 5, the tableware outer surface cleaning means 14 is lowered by the operation of the elevating means 15, the tip of the tableware pressing member 33 presses the center of the tableware bottom while being urged by the spring 32, and then the cleaning brush. The tip of 31 comes into contact with the outer surface of the tableware 12, the tableware inner surface cleaning means 13 rises, and the cleaning brush 1
8 shows a state in which the tip of the linear member 22 of No. 8 hits the inner surface of the tableware 12. In this state, the cleaning brushes 18 and 31 rotate, the cleaning brush 18 brushes the inner surface of the tableware 12, the cleaning brush 31 brushes the outer surface of the tableware 12, and cleaning water is sprayed from above and below to clean the tableware 12. To do. At this time, tableware 12
The cleaning brushes 18 and 31 are rotated in the opposite directions so that the cleaning brushes do not rotate.

An apparatus for conveying used dishes 12 in a single row on the conveyor 11 is provided with a pair of dish inner surface cleaning means 13 and dish outer surface cleaning means 14, and in the case of conveying in a plurality of rows, a plurality of pairs. Set up. The protrusion 17 of the conveyor 11 is provided in one or a plurality of rows corresponding to the above case.

The dish inner surface cleaning means 13 and the dish outer surface cleaning means 14 may be operated by separate motors, but the lifting means 15 shown in FIGS. 6 to 8 can be operated by one motor.

That is, the upper end of the link arm 42 is axially fixed by a pin provided at a fixed distance from the center of the disk 41 attached to the shaft of the motor 40, and the link arm 42 is moved up and down by the rotation of the disk 41.

One end of the link 44 is fixed to the support shaft 43, and the other end is fixed to the lower end of the link arm 42 with a pin to support the support shaft 4
3, one end of the link 45 is fixed at an angle to the link 44, preferably at a right angle. Further, in the lateral direction of the link 44, a support shaft 46 is provided at an interval of a width longer than the length of the link 44, and the support shaft 46 is provided with a link 47 having substantially the same length as the link 45 in an upward direction. The spindle 46
Then, the free ends of the link 45 and the link 47 are fixed to the link joint 48.

The dish outer surface cleaning means 14 is supported by the upper brush base 49 with the cleaning brush 31 facing downward, and one end of the brush base link 50 is axially fixed to the upper brush base 49 or a protrusion provided on the upper brush base 49 and the other end. Is axially fixed to a frame (not shown) of the apparatus, the upper brush base 49 is suspended, and a connecting member 51 is erected on the upper brush base 49.

One end of the arm 52 is fixed to the support shaft 46, and the other end is fixed to the upper end of the connecting member 51 of the upper brush base 49.

The descending and cleaning of the tableware outer surface cleaning means 14 having the above-described structure are performed as follows. That is, as shown in FIG. 7A, when the disk 41 is rotated by the operation of the motor 40 and the pin that locks the upper end of the link arm 42 is located above, the link arm 42 is pulled up and the link arm 42 is pulled up. Since the lower end of the arm 42 is also pulled up,
The end of the link 44, which is axially fixed to the lower end of the link 44, is pulled up to rotate about the support shaft 43. By the rotation of the support shaft 43, the link 45 whose one end is fixed to the support shaft 43 also rotates, and the link joint 48 which is axially fixed to the other end of the link 45.
And the link joint 48 pulls the shaft stopper of the link 47. When the shaft stop portion of the link 47 is pulled, the other end of the link 47 is fixed to the support shaft 46, and therefore the link 47 rotates about the support shaft 46 ((counterclockwise in the figure) and is supported accordingly. The shaft 46 also rotates, the arm 52 having one end fixed to the support shaft 46 rotates and pushes down the other end, pushes down the upper brush base 49 axially fixed to the other end, and lowers the dish holding member 33. The central portion of the bottom of the tableware 12 is pressed down, and the cleaning brush 31 also descends and abuts on the conveyor 11 so as to cover the outer surface of the tableware 12 which is stopped by lying down.

The tableware pressing member 33 is vertically expandable and contractible,
Since the table 32 is urged downward by the spring 32 and extends downward when the dish outer surface washing means 14 is raised, the tip of the dish holding member 33 is first moved to the center of the bottom of the dish 12 when the dish outer surface washing means 14 is lowered. The tableware 12 is brought into contact with the tableware 12 to stabilize the tableware, and the tableware outer surface cleaning means 14 contracts with the downward pressure, but when the tableware outer surface cleaning means 14 stops descending, the spring 32 is released.
Press the dishes strongly with the pressure of cleaning brushes 18 and 3 when cleaning
It prevents the tableware 12 from rotating due to the prevailing rotation force of any one of 1.

The hydraulic turbine 27 is operated by the support of a controller (not shown), the cleaning brush 31 is rotated, and the cleaning water is ejected to clean the outer surface of the tableware.

The dish inner surface cleaning means 13 has a structure shown in FIG. 7B, and rises in synchronization with the descent of the dish outer surface cleaning means 14 to clean the inner surface of the dish 12.

That is, the lower cleaning brush 18 and the hydraulic turbine 19 are supported by the lower brush base 53, one end of the brush base link 54 is axially fixed to the lower brush base 53 or a protrusion provided on the lower brush base 53, and the other end is the frame of the apparatus. The lower brush base 53 is hung from the shaft (not shown) or a conveyor frame (not shown). A protrusion 55 is provided at the center of the upper surface of the lower brush base 53.

On the other hand, one end of the arm 56 is fixed and the other end is fixed to one end of the connecting member 57 in the same direction as the link 44 attached to the above-mentioned support shaft 43 in the right direction from the support shaft in the figure. Then, the other end of the connecting member 57 is attached to the lower brush base 53.
It is fixed to the projection 55 of the shaft.

FIG. 7B shows the dish inner surface cleaning means 1 in synchronization with the lowering of the dish outer surface cleaning means 14 shown in FIG. 7A.
3 shows the state in which the tip of the linear member 22 of the cleaning brush 18 is brought into contact with the inner surface of the tableware 12 by raising 3 of the cleaning brush 18.
That is, as described above, as the link arm 42 rises, the link 44 rotates (counterclockwise in the figure), and the support shaft 43 also rotates (counterclockwise in the figure). Spindle 4
Since the arm 56 also rotates in the same direction as the support shaft 43 ((counterclockwise in the figure) by the rotation of 3, the tip of the arm 56 is lifted, whereby the connecting member 57 is pulled up,
The connecting member 57 pulls up the lower brush base 53, the cleaning brush 18 also rises, and the linear member 22 abuts on the inner surface of the tableware 12 that is stopped pronely on the conveyor 11. The cleaning brush 18 rotates according to an instruction from a controller (not shown),
The inner surface of the tableware 12 is cleaned by spraying from the cleaning water outlet 23 of the base 21 of the cleaning water cleaning brush 18.

FIG. 8A is an explanatory view of the rising of the dish outer surface cleaning means 14, and FIG. 8B is an explanatory view of the descending state of the dish inner surface cleaning means 13.

The motor 4 is supported by a controller (not shown).
When the disk 41 is rotated by the operation of 0 and the shaft stopper pin of the link arm 42 is located below, the link arm 42 is pulled down, one end of which is locked to the link arm 42 and the other end of which is fixed to the support shaft 43. The shaft stopper tip portion of 44 rotates downward (clockwise in the figure), and the support shaft 43 also rotates clockwise. A link 4 whose one end is fixed to the support shaft 43 by the rotation of the support shaft 43.
Since the tip of 5 is pushed in the same direction (to the right in the figure),
The shaft stop pin at the other end of the link joint 48 pushes the link 47 in the same direction (to the right in the drawing). Since one end of the link 47 is fixed to the link joint 48 by an axial stop pin and the other end is fixed to the support shaft 46, the rotation of the link 47 causes the support shaft 46 to move in the same direction (clockwise in the figure). Rotate. Spindle 4
By the rotation of 6, the tip of the arm 56 fixed to the support shaft 46 also rotates in the same direction as the rotation of the support shaft 46 (clockwise in the figure), and the front end thereof is locked. The connecting member 51 of the upper brush base 49 is pulled up. By this pulling up, the upper brush base 49 is pulled up, and the cleaning brush 31 and the dish holding member 33 also rise and separate from the outer surface of the dish 12.

When the dish outer surface cleaning means 14 is lifted, the dish pressing member 33 is urged by the spring 32 and extends, so that even if the tip of the cleaning material 30 of the cleaning brush 31 is separated from the outer surface of the dish 12, the table pressing member 33 is pushed. The tip of the plate presses the outer surface of the tableware for a while to stabilize the tableware 12.

In synchronization with the rise of the dishwashing surface cleaning means 14,
The dish inner surface cleaning means 13 descends as shown in FIG. 8 (B). That is, as described above, when the support shaft 43 rotates (clockwise in the drawing) due to the lowering of the link arm 42, the tip of the arm 56 whose one end is fixed to the support shaft 46 also rotates in the same direction (clockwise in the drawing). Since it moves, the connecting member 57 that is fixed to the tip of the arm 56 is pushed down, and the lower brush base 53 is also pushed down. By this pushing down, the cleaning brush 18 is also lowered, and the linear material 22 is separated from the inner surface of the tableware 12.

The conveyor 12 rotates according to the instruction of the controller, the washed tableware 12 advances forward, the next tableware 12 advances, and the tableware inner surface cleaning means 13 and the tableware outer surface cleaning means 1
4, the conveyor 12 is stopped, and the washing is performed again by the operation described in FIG.

It is preferable that a cap made of rubber or soft plastic is fitted on the tip of the tableware pressing member 33 so that the cap comes into contact with the center of the outer surface of the tableware 12.

The length between the support shaft 43 of the arm 52 and the stop point of the connecting member 51 determines the lifting stroke of the dish outer surface cleaning means 14, and the support shaft 46 of the arm 56 and the connecting member 57 stop. The length between the points determines the lifting stroke of the dish inner surface cleaning means 13. By making the up / down stroke of the dish outer surface cleaning means 14 slightly shorter than the up / down stroke of the dish inner surface cleaning means 13, the tip of the dish holding member 33 can reach the center of the outer surface of the dish 12 a little earlier and hold down the dish 12. it can.

The upper brush base link 50 and the lower brush base link 54 are provided to stabilize the vertical movement of the upper brush base 49 and the lower brush base 53.
It should not be level. This is because when the brush base link becomes horizontal during the lifting process,
This is because the left and right brush base links become unbalanced and the brush bases tilt.

Cleaning brush 18 of the tableware inner surface cleaning means 13
By rotating the cleaning brush 31 of the dish outer surface cleaning means 14 in the opposite direction, the dish 12 is prevented from rotating and the cleaning effect is improved.

The fountain means 16 is a tableware inner surface cleaning means 13 and a tableware outer surface cleaning means 14 in the traveling direction of the conveyor 11.
A plurality of fountain nozzles 58 are provided above and below and above and below the conveyor 11 in front of, behind and in front of, respectively, and wash water is ejected from above and below the tableware 12 on the conveyor 11. Both cleaning means 1
When the fountain means 16 is provided behind the cleaning means 3 and 14, the tableware 12 can be roughly washed before the cleaning by the cleaning means 13 and 14, and the cleaning means 16 in front of the cleaning means 13 and 14 can perform the cleaning both. The tableware 12 that has been washed by the means 13 and 14 is further washed to wash away the dirt, if any. The fountain means 16a for finishing cleaning may be provided further above and below the front fountain means 16.

[0042]

In the apparatus according to the present invention, the dish inner surface cleaning means and the dish outer surface cleaning means are vertically opposed to each other with the intermittent conveyor interposed therebetween, and the inner and outer surfaces of the dish are cleaned above and below the same position of the intermittent conveyor. Therefore, the length of the apparatus can be shortened as compared with the conventional apparatus that cleans the inner surface and the outer surface of the dishes at different positions, and therefore, the apparatus can be installed in a narrow (short) place. In addition, sticky dirt such as cooked rice is not reattached to the dishes between the dish inner surface washing and the dish outer surface washing, and effective washing can be realized. Also,
The dish-pressing member of the dish-outside cleaning means has a function of moving the dish-inside washing means and the dish-outside washing means up and down and during washing of the dishes.
Stabilize the dishes without moving them to enhance the cleaning effect. Since the cleaning brushes of the dish inner surface cleaning means and the dish outer surface cleaning means rotate in the opposite directions, there is an effect of preventing the dishes from rotating during the brush cleaning, and therefore, the pressing member can be minimized and the action of the brush on the dish outer surface can be prevented. The area is increased and the cleaning effect is improved. Since the raising and lowering means for the dish inner surface washing means and the dish outer surface washing means can be operated by one motor, the cost of the apparatus can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram of a configuration of an apparatus according to the present invention.

FIG. 2 is an explanatory diagram of a configuration of a dish inner surface cleaning unit.

FIG. 3 is an explanatory diagram of a configuration of a tableware outer surface cleaning means.

FIG. 4 is an explanatory diagram of a tableware inner surface cleaning means, a tableware outer surface cleaning means, and a standby state.

FIG. 5 is an explanatory diagram of a dishwashing state by the dishwashing inner surface cleaning means and the dishware outer surface cleaning means.

FIG. 6 is an explanatory view of a configuration of lifting means.

FIG. 7A is an explanatory view of a state of the dish outer surface cleaning means at the time of descending washing, and FIG. 7B is an explanatory diagram of a state of the dish inner surface cleaning means at the time of rising washing.

FIG. 8A is an explanatory diagram of a rising state of the dish outer surface cleaning means at the end of washing, and FIG. 8B is an explanatory diagram of a descending state of the dish inner surface cleaning means at the end of washing.

FIG. 9 is a schematic explanatory diagram of a configuration of a conventional device.

[Explanation of symbols]

1 Intermittent conveyor 2 tableware 3 Tableware inner surface cleaning means 4 hydraulic turbine 5 cleaning brush 6 Tableware outer surface cleaning means 7 Hydro turbine 8 cleaning brush 9 tableware holder 10 hot water nozzle 11 conveyor 12 tableware 13 Tableware inner surface cleaning means 14 Tableware outer surface cleaning means 15 Lifting means 16 Fountain means 17 Projection 18 cleaning brush 19 Hydro turbine 20 shaft 21 Base 22 Wire material 23 Cleaning water outlet 24 casing 25 water supply pipe 26 rotors 27 Hydro Turbine 28 Drive shaft 29 base 30 linear material 31 linear brush 32 spring 33 Tableware holding member 34 Brush base fixing collar 35 Brush Boss 40 motor 41 discs 42 Link Arm 43 spindle 44 links 45 links 46 spindle 47 links 48 link joint 49 upper brush base 50 brush base link 51 Connecting material 52 arms 53 Lower brush base 54 brush base link 55 Projection 56 arms 57 Connecting material 58 fountain nozzle

Claims (2)

[Claims] 1. An intermittent conveyor that supports both ends of used tableware and intermittently conveys them one by one, and is located below the conveyor, and is connected to a hydraulic turbine and a drive shaft of the hydraulic turbine. A large number of filaments are planted with a linear material at the tip base of a shaft provided with a water conduit for draining water used for rotating a hydraulic turbine, and wash water outlet holes for ejecting the water are provided between the filaments. A dish brush inner surface cleaning means and a dish brush inner surface cleaning means, which is located above the intermittent conveyor and is connected to a hydraulic turbine and a drive shaft of the hydraulic turbine.
A cleaning brush in which bristles are implanted with a large number of linear materials, fitted into the hydraulic turbine, urged by a spring, the tip projects from the cleaning brush, and presses the central portion of the outer bottom surface of the tableware on the intermittent conveyor. A tableware pressing member for supporting the tableware outer surface cleaning means, an elevating means for simultaneously elevating and lowering the tableware inner surface cleaning means and the tableware outer surface cleaning means, and in the traveling direction of the tableware, In front of the dishwashing means, a means for spraying washing water onto the dishes from above and below the intermittent conveyor, a controller for controlling each of the means, and a dishwashing device consisting of a dish. 2. The dish washing apparatus according to claim 2, wherein the washing brush of the dish inner surface washing means and the washing brush of the dish outer surface washing means rotate in opposite directions.