JP4072333B2 - Tableware cleaning equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device for cleaning used tableware and other containers (hereinafter simply referred to as a device).
[0002]
[Prior art]
As a conventional apparatus, there is an automatic tableware brush cleaning apparatus of utility model registration No. 3068761 developed by the applicant. As shown in FIG. 9, this apparatus uses a cleaning brush 5 that rotates an inner surface of a used tableware 2 conveyed by an intermittent conveyor 1 by a hydraulic turbine 4 of tableware inner surface cleaning means 3 provided below the intermittent conveyor 1. Then, the tableware 2 is sent to the front of the intermittent conveyor 1 in the rotational direction and below the table outer surface cleaning means 6 provided above the intermittent conveyor 1 to wash the outer surface of the tableware. Washing is performed while spraying water or hot water with a cleaning brush 8 that is rotated by the hydraulic turbine 7 of the means 6.
While the tableware 2 is being cleaned by the tableware inner surface cleaning means 3 and the tableware outer surface cleaning means 6, the tableware presser 9 composed of two bars is used to clean the outer surface of the tableware 2 so that the tableware 2 does not float, rotate or move. Holding down.
In addition, a hot water nozzle 10 for spraying hot water toward the tableware 2 from above and below the intermittent conveyor 1 is provided before and after the cleaning brush 8 of the tableware outer surface cleaning means 6.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional apparatus, the tableware inner surface cleaning means 3 and the tableware outer surface cleaning means 6 are in different positions, the apparatus is longer, and a wide (long) place for installing the apparatus is required. Therefore, an apparatus that can be installed in a narrow (short) place by shortening the length of the apparatus is desired.
[0004]
Moreover, in the said conventional apparatus, the tableware presser is required both at the time of the inner surface washing | cleaning of the tableware 2, and the outer surface washing | cleaning.
[0005]
Further, in the above-mentioned conventional apparatus, the used tableware stacked on the prone surface is separated one by one by the tableware feeder and placed on the intermittent conveyor. Especially when it is attached to the shoulder, the outer surface of the tableware 2 is pressed by the tableware holder 9 when cleaning the inner surface, so that sticky dirt etc. is pressed against the outer surface of the tableware 2 by the tableware holder 9 and sticks strongly. In some cases, the outer surface cleaning means 6 cannot sufficiently remove the table.
[0006]
The present invention shortens the length of the device and can be installed even in a narrow (short) place, eliminates the tableware presser that presses the shoulder portion of the outer surface of the tableware during cleaning, and therefore prevents the outer surface of the tableware from becoming dirty. The purpose is to provide.
[0007]
[Means for Solving the Problems]
An intermittent conveyer that sequentially conveys used tableware one by one in a lying state, a tableware inner surface cleaning unit that is below the intermittent conveyor and that cleans the inner surface of the tableware, and above the tableware inner surface cleaning unit, Tableware washing means comprising tableware outer surface washing means opposed to the tableware inner face washing means across the intermittent conveyor;
Elevating means for elevating and lowering the tableware inner surface cleaning means and the tableware outer surface cleaning means simultaneously,
Means for jetting wash water to the tableware from above and below the intermittent conveyor in front of the tableware cleaning means in the direction of travel of the tableware;
A controller for controlling each means;
A dishwashing apparatus is comprised by.
[0008]
An intermittent conveyor that sequentially pushes used tableware in a prone state by pushing one by one with a protrusion, and
Located below the conveyor, is connected to a hydraulic turbine and a drive shaft of the hydraulic turbine, and has a linear shape at a tip base portion of a shaft provided with a water conduit for leading water used to rotate the hydraulic turbine. A plurality of hairs are planted with a material, and a dish brush inner surface cleaning means is configured with a cleaning brush provided with cleaning water outlet holes for ejecting the water between the planted hairs,
Opposite to the tableware inner surface cleaning means, located above the intermittent conveyor, connected to a hydraulic turbine, a driving shaft of the hydraulic turbine, a washing brush planted with a number of linear materials, and driving of the hydraulic turbine An extendable tableware pressing pin for supporting the tableware inserted into the shaft, biased by a spring, the tip protruding from between the cleaning brushes and pressing the center of the outer bottom of the tableware on the intermittent conveyor , A means for jetting washing water in the direction of the washing brush is provided to constitute a dish outer surface washing means,
Elevating means for raising and lowering the tableware inner surface cleaning means and the tableware outer surface cleaning means at the same time, as opposed to raising and lowering, is provided,
In the advancing direction of the tableware, in front of the tableware cleaning means , or behind and in front, there is provided means for jetting cleaning water to the tableware from above and below the intermittent conveyor,
Control each means with a controller,
Wash the dishes on the intermittent conveyor.
[0009]
Rotate the cleaning brush of the inner cleaning means and the cleaning brush of the outer cleaning means in the opposite directions.
[0010]
DETAILED DESCRIPTION OF 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 an apparatus according to the present invention.
This apparatus has a tableware inner surface cleaning means 13 for cleaning the inner surface of a used tableware 12 which is conveyed and suspended on the conveyor 11 below the intermittently rotating conveyor 11, and the tableware 12 facing the upper surface thereof. The tableware outer surface cleaning means 14 for cleaning the outer surface of the tableware 12 while holding the center of the outer bottom of the tableware, the cleaning brush of the tableware inner surface cleaning means 13, the cleaning brush and the tableware pressing pin of the tableware outer surface cleaning means 14 are synchronized, and On the contrary, the raising and lowering means 15 for raising and lowering, and the hot water or the upper and lower sides of the front and rear of the two cleaning means 13 and 14 in the rotational direction of the conveyor 11 toward the inner surface and the outer surface of the tableware 12 on the conveyor 11 A jetting means 16 for jetting water washing water to wash the tableware 12 is provided.
[0011]
The conveyor 11 is provided with protrusions 17 at equal intervals for pushing the tableware 12 forward by rotation.
[0012]
The tableware inner surface cleaning means 13 includes a cleaning brush 18 and a hydro turbine 19 as shown in FIG.
In the cleaning brush 18, a large number of linear members 22 made of silicon rubber formed in a round or square rod shape are implanted in the base body 21 at the tip of the hollow shaft 20, and the shaft 20 is formed at the center or at a plurality of locations of the base body 21. The cleaning water lead-out hole 23 communicating with the hollow is provided.
The hydro turbine 19 has a water supply pipe 25 attached to the casing 24, and feeds cleaning water such as hot water through the water supply pipe 25 to rotate the rotor blades 26.
[0013]
The shaft 20 is fixedly connected to the shaft of the rotary blade 26 of the hydraulic turbine 19, and the cleaning water obtained by rotating the rotary blade 26 of the hydraulic turbine 19 is passed through the hollow of the shaft 20. It spouts outside.
[0014]
As shown in FIG. 3, the dish outer surface cleaning means 14 is connected to a hydraulic turbine 27 and a drive shaft 28 of the hydraulic turbine 27, and is formed in a round or square rod shape made of silicon rubber on a bowl-shaped base 29. and the linear member 30, a cleaning brush 31 which is flocked number toward the tip the bowl-shaped portion toward the center, is inserted into the drive shaft 28 of the water turbine 27, and, at the bowl-shaped portion toward the center of the base 29 by a spring 32 It is composed of a tableware pressing pin 33 which can be extended and contracted and is urged so as to protrude from the tip of the cleaning brush 31.
[0015]
It is preferable to provide means for jetting the cleaning water in the direction of the cleaning brush 31 where the table outer surface cleaning means 14 descends and contacts the outer surface of the tableware 12.
[0016]
In the figure, 34 is a brush base fixing collar, and 35 is a brush boss.
[0017]
In FIG. 4, the tableware inner surface cleaning means 13 is lowered by the operation of the lifting / lowering means 15 described later, the tip of the linear material 22 of the cleaning brush 18 is separated from the inner surface of the tableware 12, and the tableware outer surface cleaning means 14 is raised at the same time 31 shows a state in which the tip of the linear member 30 is separated from the outer surface of the tableware 12 and the tip of the tableware pressing pin 33 is waiting away from the center of the bottom of the tableware 12 (the center in the yarn thread).
[0018]
FIG. 5 shows the operation of the elevating / lowering means 15, the tableware outer surface cleaning means 14 is lowered, the tip of the tableware pressing pin 33 presses the center of the bottom of the tableware while being urged by the spring 32, and then the tip of the cleaning brush 31. Is in contact with the outer surface of the tableware 12, the tableware inner surface cleaning means 13 is raised, and the tip of the linear material 22 of the cleaning brush 18 is in contact with 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 the cleaning water sprays from above and below to clean the tableware 12. To do.
At this time, the cleaning brushes 18 and 31 are reversely rotated so that the tableware 12 does not rotate.
[0019]
In the apparatus for transporting the cleaning of the used tableware 12 in a row on the conveyor 11, a pair of the tableware inner surface cleaning means 13 and the tableware outer surface cleaning means 14 is provided, and when transporting in a plurality of rows, a plurality of pairs are provided.
The protrusion 17 of the conveyor 11 is provided in one or more rows corresponding to the above case.
[0020]
Dishes inside surface cleaning means 13 and the dishwashing outer surface cleaning means 14 may be allowed to act in separate motors, but can be operated by one motor in the lifting means 15 shown in FIGS. 6-8.
[0021]
That is, the upper end of the link arm 42 is pivoted 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.
[0022]
One end of the link 44 is fixed to the support shaft 43, the other end is fixed to the lower end portion of the link arm 42 with a pin, and one end of the link 45 is attached to the support shaft 43 at an angle with the link 44, preferably at a right angle. Fix it.
Further, in the lateral direction of the link 44, a support shaft 46 is provided at an interval longer than the length of the link 44, and the link 47 having a length substantially equal to the length of the link 45 is provided on the support shaft 46. Is fixed to the support shaft 46, and the free ends of the link 45 and the link 47 are fixed to the link joint 48.
[0023]
Dishes outer surface cleaning means 14, the washing brush 31 is supported by the upper brush base 49 toward the downward direction, hermetically axis protrusion provided at one end of the brush base link 50 or in the upper brush base 49, the other end The upper brush base 49 is suspended while being fixed to a frame (not shown) of the apparatus, and a connecting member 51 is erected on the upper brush base 49.
[0024]
One end of the arm 52 is fixed to the support shaft 46, and the other end is fixed to the upper end portion of the connecting member 51 of the upper brush base 49.
[0025]
The descent and cleaning of the tableware outer surface cleaning means 14 having the above-described configuration is 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 fixes the upper end of the link arm 42 is positioned upward, the link arm 42 is pulled up, and the link Since the lower end portion of the arm 42 is also lifted, the end portion of the link 44 that is pivoted to the lower end portion is lifted and rotated about the support shaft 43.
By the rotation of the support shaft 43, the link 45 having one end fixed to the support shaft 43 is also rotated, and the link joint 48 secured to the other end of the link 45 is pulled. The link joint 48 pulls the shaft stop portion 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, so the link 47 rotates about the support shaft 46 (in the counterclockwise direction in the figure) and is supported accordingly. The shaft 46 is also rotated, the arm 52 having one end fixed to the support shaft 46 is rotated to push down the other end, the upper brush base 49 fixed to the other end is pushed down and the tableware pressing pin 33 is also lowered. The bottom center portion of the tableware 12 is pressed, and the cleaning brush 31 is also lowered to come into contact with the conveyor 11 so as to cover the outer surface of the tableware 12 that has been stopped on its face.
[0026]
Tableware presser pin 33 is freely vertically extensible, is urged downward by a spring 32, by the lowering of food Utsuwagaimen cleaning means 14, and first tip of tableware presser pin 33 abuts against the bottom center of the tableware 12 tableware 12, the tableware is stabilized and contracted by the lowering pressure of the tableware outer surface cleaning means 14, but when the tableware outer surface cleaning means 14 stops descending, the tableware is strongly pressed by the pressure of the spring 32 and either of the cleaning brushes 18 and 31 is washed. This rotation force is won and the tableware 12 is prevented from rotating.
[0027]
The hydro 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.
[0028]
The tableware inner surface cleaning means 13 is configured as shown in FIG. 7B and rises in synchronization with the lowering of the tableware outer surface cleaning means 14 to clean the inner surface of the tableware 12.
[0029]
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 fixed to the lower brush base 53 or a protrusion provided on the lower brush base 53, and the other end is framed of the apparatus (not shown). Or the lower brush base 53 is suspended from a conveyor frame (not shown).
A protrusion 55 is provided at the center of the upper surface of the lower brush base 53.
[0030]
On the other hand, one end of the arm 56 is fixed in the same direction as the link 44 attached to the above-described support shaft 43, and from the support shaft to the right in the drawing, and the other end is fixed to one end of the connecting member 57, and connected. The other end of the material 57 is fixed to the protrusion 55 of the lower brush base 53.
[0031]
7B, the tableware inner surface cleaning means 13 is raised in synchronization with the lowering of the tableware outer surface cleaning means 14 shown in FIG. 7A, and the tip of the linear material 22 of the cleaning brush 18 is set to the tableware. The state made to contact | abut to the inner surface of 12 is shown.
That is, as described above, as the link arm 42 is raised, the link 44 is rotated (counterclockwise in the figure), so that the support shaft 43 is also rotated (counterclockwise in the figure).
As the support shaft 43 is rotated, the arm 56 is also rotated in the same direction as the support shaft 43 (counterclockwise in the figure), so that the tip of the arm 56 is lifted, whereby the connecting member 57 is pulled up, and the connecting member 57 is lowered. The brush base 53 is pulled up, the cleaning brush 18 is also raised, and the linear material 22 comes into contact with the inner surface of the tableware 12 that is stopped on its face on the conveyor 11.
In response to an instruction from a controller (not shown), the cleaning brush 18 is rotated and ejected from the cleaning water outlet hole 23 of the base 21 of the cleaning water cleaning brush 18 to clean the inner surface of the tableware 12.
[0032]
8A is an explanatory view of the rising state of the tableware outer surface cleaning means 14, and FIG. 8B is an explanatory diagram of the lowering state of the tableware inner surface cleaning means 13.
[0033]
With the support of the controller (not shown), when the disk 41 is rotated by the operation of the motor 40 and the shaft locking pin of the link arm 42 is positioned below, the link arm 42 is pulled down, and one end of the link arm 42 is pivoted. The shaft stop tip of the link 44 having the other end fixed to the support shaft 43 rotates downward (clockwise in the figure), and the support shaft 43 also rotates clockwise. Since the tip end portion of the link 45 having one end fixed to the support shaft 43 by the rotation of the support shaft 43 is also pushed in the same direction (right direction in the figure), the shaft stop pin at the other end of the link joint 48 pushes the link 47 in the same direction ( Press in the right direction in the figure.
Since one end of the link 47 is fixed to the link joint 48 by a shaft stop pin and the other end is fixed to the support shaft 46, the support shaft 46 is also rotated in the same direction (clockwise in the figure) by the rotation of the link 47. Rotate.
As the support shaft 46 rotates, 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 drawing), and the end of the arm 56 is fixed. The connecting member 51 of the upper brush base 49 is pulled up.
By this lifting, the upper brush base 49 is pulled up, and the cleaning brush 31 and the tableware pressing pin 33 are also lifted away from the outer surface of the tableware 12.
[0034]
When the tableware outer surface cleaning means 14 is raised, the tableware pressing pin 33 is urged and extended by the spring 32, so that the tip of the tableware holding pin 33 remains even if the tip of the cleaning material 30 of the cleaning brush 31 is separated from the outer surface of the tableware 12. Hold the outer surface of the tableware for a while to stabilize the tableware 12.
[0035]
In synchronization with the rise of the tableware outer surface cleaning means 14, the tableware inner surface cleaning means 13 is lowered as shown in FIG. That is, as described above, when the support shaft 43 rotates (clockwise in the figure) by the lowering of the link arm 42, the tip end portion of the arm 56 having one end fixed to the support shaft 46 also rotates in the same direction (clockwise in the figure). Therefore, the connecting member 57 pivoted on the tip of the arm 56 is pushed down, and the lower brush base 53 is also pushed down.
By this depression, the cleaning brush 18 is also lowered, and the linear material 22 is separated from the inner surface of the tableware 12.
[0036]
The conveyor 12 is rotated by the instruction of the controller, the cleaned tableware 12 advances forward, the next tableware 12 advances, comes between the tableware inner surface cleaning means 13 and the tableware outer surface cleaning means 14, and the conveyor 12. Stops, and cleaning is performed again as described with reference to FIG.
[0037]
It is preferable to fit a rubber or soft plastic cap at the tip of the tableware pressing pin 33 so that the cap abuts against the center of the outer surface of the tableware 12.
[0038]
The length between the support shaft 43 of the arm 52 and the shaft stop point of the connecting member 51 determines the lifting stroke of the tableware outer surface cleaning means 14, and the support shaft 46 of the arm 56 and the shaft stop point of the connecting member 57. The length between them determines the lifting stroke of the tableware inner surface cleaning means 13.
By making the lifting / lowering stroke of the tableware outer surface cleaning means 14 slightly shorter than the lifting / lowering stroke of the tableware inner surface cleaning means 13, the tip of the tableware pressing pin 33 can reach the center of the outer surface of the tableware 12 a little earlier and press the tableware 12. it can.
[0039]
The upper brush base link 50 and the lower brush base link 54 need not be horizontal in order to stabilize the up-and-down movement of the upper brush base 49 and the lower brush base 53. This is because if there is a point in time when the brush base link becomes horizontal in the ascending / descending process, the balance between the left and right brush base links is deteriorated and the brush base is inclined.
[0040]
The cleaning brush 18 of the tableware inner surface cleaning means 13 and the cleaning brush 31 of the tableware outer surface cleaning means 14 are rotated in the reverse direction, thereby preventing the tableware 12 from rotating and improving the cleaning effect.
[0041]
The fountain means 16 is provided with a plurality of fountain nozzles 58 above and below the conveyor 11 in front of the tableware inner surface cleaning means 13 and tableware outer surface cleaning means 14 in the traveling direction of the conveyor 11. Wash water is spouted from the top and bottom of the tableware 12.
When the fountain means 16 is provided behind the both cleaning means 13 and 14, the tableware 12 can be roughly washed before the cleaning by both the cleaning means 13 and 14, and the cleaning means 16 in front of the both cleaning means 13 and 14 is Then, the tableware 12 after being cleaned by the both cleaning means 13 and 14 is further cleaned, and even if dirt is adhered, the dirt is washed away.
You may provide the fountain means 16a for finishing washing in the front upper and lower sides of the fountain means 16 of the front.
[0042]
【The invention's effect】
In the apparatus according to this invention, the tableware inner surface cleaning means and the tableware outer surface cleaning means face each other up and down across the intermittent conveyor, and the inner surface and the outer surface of the tableware can be cleaned up and down at the same position of the intermittent conveyor. Compared to a device that cleans the inner surface and outer surface of tableware at different positions, such as a device, the length of the device can be shortened, and therefore it can be installed in a narrow (short) place. In addition, sticky dirt such as cooked rice during cleaning is not reattached to the tableware between the inner surface cleaning and the outer surface cleaning of the tableware, and effective cleaning can be realized.
Further, the tableware pressing pin of the tableware outer surface cleaning means stabilizes the tableware without moving the tableware when the tableware inner surface cleaning means and the tableware outer surface cleaning means are moved up and down and during the tableware cleaning, thereby enhancing the cleaning effect. Since the cleaning brushes of the tableware inner surface cleaning means and the tableware outer surface cleaning means rotate in reverse, there is an effect of preventing the tableware from rotating during the brush cleaning, so that the pressing pin can be minimized and the action of the brush on the outer surface of the tableware The area is increased and the cleaning effect is improved.
If the lifting and lowering means of the tableware inner surface cleaning means and the tableware outer surface cleaning means are operated by one motor, the cost of the apparatus can be reduced.
[Brief description of the 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 tableware inner surface cleaning means.
FIG. 3 is an explanatory diagram of a configuration of tableware outer surface cleaning means.
FIG. 4 is an explanatory diagram of tableware inner surface cleaning means, tableware outer surface cleaning means, and a standby state.
FIG. 5 is an explanatory view of the state of cleaning dishes by the tableware inner surface cleaning means and the tableware outer surface cleaning means.
FIG. 6 is an explanatory diagram of the configuration of the lifting means.
7A is an explanatory diagram of a state when the tableware outer surface cleaning means is in the descending cleaning state, and FIG. 7B is an explanatory diagram of a state when the tableware inner surface cleaning means is in the ascending cleaning state.
8A is an explanatory diagram of the rising state of the tableware outer surface cleaning means at the end of cleaning, and FIG. 8B is an explanatory diagram of the lowered state of the tableware inner surface cleaning means at the end of cleaning.
FIG. 9 is a schematic explanatory diagram of a configuration of a conventional apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Intermittent conveyor 2 Tableware 3 Tableware inner surface washing | cleaning means 4 Hydraulic turbine 5 Washing brush 6 Tableware outer surface washing means 7 Hydropower turbine 8 Cleaning brush 9 Tableware presser 10 Hot water nozzle 11 Conveyor 12 Tableware 13 Tableware inner surface washing means 14 Tableware outer surface washing means 15 Lifting means DESCRIPTION OF SYMBOLS 16 Fountain means 17 Protrusion 18 Washing brush 19 Hydro turbine 20 Shaft 21 Base body 22 Linear material 23 Washing water outlet hole 24 Casing 25 Water supply pipe 26 Rotary blade 27 Hydro turbine 28 Drive shaft 29 Base body 30 Linear material 31 Linear brush 32 Spring 33 Tableware holding pin 34 Brush base fixing collar 35 Brush boss 40 Motor 41 Disc 42 Link arm 43 Support shaft 44 Link 45 Link 46 Support shaft 47 Link 48 Link joint 49 Upper brush base 50 Brush base Link 51 Connecting material 52 Arm 53 Lower brush base 54 Brush base link 55 Projection 56 Arm 57 Connecting material 58 Fountain nozzle

Claims (2)

An intermittent conveyor that sequentially pushes used tableware in a prone state by pushing one by one with a protrusion, and
Located below the conveyor, is connected to a hydraulic turbine and a drive shaft of the hydraulic turbine, and has a linear shape at a tip base portion of a shaft provided with a water conduit for leading water used to rotate the hydraulic turbine. A tableware inner surface cleaning means comprising a cleaning brush in which a plurality of hairs are planted with a material and a cleaning water outlet hole is provided for ejecting the water between the planted hairs;
Opposite to the tableware inner surface cleaning means, located above the intermittent conveyor, connected to a hydraulic turbine, a driving shaft of the hydraulic turbine, a washing brush planted with a number of linear materials, and driving of the hydraulic turbine An extendable tableware pressing pin for supporting the tableware by inserting it into the shaft and being biased by a spring so that the tip protrudes from between the cleaning brushes and presses the center of the outer bottom of the tableware on the intermittent conveyor. A dish outer surface cleaning means comprising means for spraying cleaning water in the direction of the cleaning brush ;
Elevating means for elevating and lowering the tableware inner surface cleaning means and the tableware outer surface cleaning means simultaneously,
Means for jetting washing water to the tableware from above and below the intermittent conveyor in the traveling direction of the tableware, in front of the tableware cleaning means , or backward and forward ;
A controller for controlling each means;
A dishwasher consisting of 2. The tableware washing apparatus according to claim 1 , wherein the cleaning brush of the tableware inner surface cleaning means and the cleaning brush of the tableware outer surface cleaning means rotate in opposite directions.

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