JP2014159323A - Paper sheet processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper sheet processing device capable of accurately detecting conveying speed of a paper sheet to smoothly process the paper sheet.SOLUTION: According to an embodiment, a paper sheet processing device includes: a conveying device 30 that has a loop-like first conveying belt 32 and second conveying belt 38 disposed facing each other and conveys a paper sheet while holding the paper sheet between the first and second conveying belts; first and second detectors 64a and 64b for respectively detecting travel speeds of the first and second conveying belts; and a control unit that detects a difference between the travel speeds detected by the first and second detectors and provides a notification when the difference is greater than or equal to a predetermined value.

Description

  Embodiments described herein relate generally to a paper sheet processing apparatus that processes paper sheets such as mail.

  As a paper sheet processing apparatus, for example, a mail processing apparatus includes a transport device that transports paper sheets. The paper sheet transport device includes, for example, a plurality of transport belts that are in a closed loop, and a drive source such as a motor that drives the transport belt. The conveyor belts are installed one above the other, and a plurality of these conveyor belts installed one on top of the other are arranged side by side in the conveyance direction. And by making a conveyance belt drive, paper sheets are pinched | interposed between an upper and lower conveyance belt, and are conveyed. The conveyed paper sheets are subjected to type discrimination in accordance with the shape and image information in the processing apparatus, and further conveyed to the stacking unit for each discriminated type.

  In order to sort and transport the paper sheets to the target stacking unit, it is necessary to detect the transport speed of the paper sheets. By detecting the conveyance speed, it is possible to obtain the time for the paper sheet to pass between two sensors. After passing the sensor installed upstream, if paper sheets are not detected after the time that should have passed the sensor installed downstream, the paper sheets are jammed in the middle or dropped from the transport section Can be detected. In addition, the timing for performing the switching operation of the portion to be distributed to the target stacking unit can be obtained from the conveyance speed.

  Generally, in a processing apparatus, a rotary encoder is attached to a rotation shaft of a motor that drives a conveyance belt, and the rotation speed of the rotation shaft is detected by the rotary encoder, so that the traveling speed of the conveyance belt, that is, the conveyance speed of a paper sheet Is detected.

Japanese Patent Laid-Open No. 6-80272 JP 2000-61404 A Japanese Patent No. 3420787 JP 2004-99248 A JP 2000-132047 A

  However, when the conveyance speed is detected using a rotary encoder, the following problems occur. That is, there is a possibility that slip occurs between the conveying belt and the rotation shaft of the motor, but the slip cannot be detected by the rotary encoder attached to the rotation shaft of the motor. For this reason, if a slip occurs, an error occurs between the detected transport speed and the actual transport speed. Further, when the conveyor belt is worn out, the amount of slip increases, so that an accurate conveyor speed cannot be detected. As a result, it may be difficult to accurately perform the paper sheet processing such as paper sheet conveyance, sorting, jam detection, and the like.

  The present invention has been made in view of the above points, and an object thereof is to provide a paper sheet processing apparatus capable of accurately detecting the conveyance speed of paper sheets and processing the paper sheets smoothly. There is.

  According to the embodiment, the paper sheet processing apparatus includes a loop-shaped first transport belt and a second transport belt that are arranged to face each other, and sandwiches the paper sheet between the first and second transport belts. Detecting a difference in travel speed detected by the transport device, the first and second detectors for detecting the travel speeds of the first and second transport belts, respectively, and the first and second detectors; And a control unit for notifying when this difference becomes a predetermined value or more.

FIG. 1 is a plan view schematically showing a paper sheet processing apparatus according to an embodiment. FIG. 2 is a side view showing a conveying device of the paper sheet processing apparatus. FIG. 3 is a plan view showing a conveying belt of the conveying device. FIG. 4 is a block diagram illustrating a configuration of the transport device. FIG. 5 is a side view schematically showing an operation for detecting the traveling speed of the conveyor belt. FIG. 6 is a diagram illustrating an output signal of a detector that detects a traveling speed of the conveyor belt. FIG. 7 is a flowchart showing the operation of the transfer device. FIG. 8 is a side view schematically showing a sorting unit and a plurality of stacking units of the paper sheet processing apparatus.

  Hereinafter, a paper sheet processing apparatus according to an embodiment will be described in detail with reference to the drawings.

  FIG. 1 is a plan view schematically showing a mail processing apparatus according to the first embodiment as a paper sheet processing apparatus. As shown in FIG. 1, the mail processing apparatus includes a hopper 1 into which mails as paper sheets are inserted, a transport path 8a extending from the hopper through a predetermined path, and a mail along the transport path 8a. It includes a later-described transport device that transports an object, and various processing units provided along the transport path 8a.

  In the hopper 1, mails taken out from mail bags collected from posts in the city are put. The postal items put into the hopper 1 are a mixture of standard postal items that can be machine-processed and non-standard-size postal items that cannot be mechanically processed.

  A thickness sorting section 2a and a width sorting section 2b are connected to the discharge side of the hopper 1 and are provided along the transport path 8a. The thickness sorting section 2a and the width sorting section 2b exclude mail pieces having a predetermined thickness or more and non-standard-size mail pieces having a predetermined width or more, and allow only the regular mail pieces to pass therethrough.

  The thickness sorting section 2a and the width sorting section 2b are connected to a shifting section 3 for shifting the stacked mail pieces, and the shifting section 3 is connected to a single pick-up section 4 for picking up mail pieces one by one. Yes. A buffer feeder section 5 is connected to the single extraction section 4 for collecting and supplying mail. The buffer feeder unit 5 is connected to a local feeder unit 7 for additionally loading fixed-size mail items arranged by human hands.

  The buffer feeder unit 5 takes out the standard mail one by one and sends it out to the transport path 8a in a standing position. In the transport path 8a, a posture control unit 10 for correcting the posture of the postal matter is provided. On the postal matter sending side of the posture control unit 10, a postal unit 11 for excluding postal items whose posture has not been corrected. Is provided.

  Further, first and second reading units 13 and 14 for reading image information and character information from the mail piece are disposed in the conveyance direction of the mail piece. The postal matter that has not been excluded by the exclusion unit 11 is read by the first reading unit 13 and then the second reading unit 14 similarly reads the front and back images.

  Connected to the carry-out side of the second reading unit 14 is a switchback unit 16 for aligning the direction of the mail piece based on the type and position information of the fee stamp on the mail piece. Connected to the carry-out side of the switchback unit 16 are an inversion control unit 17 that reverses the postal matter upside down, a normal rotation control unit 18, and a postmarking unit 20 that unmarks the amount stamp on the postal item.

  A plurality of stacking units 19 are connected to the carry-out side of the postmarking unit 20, and based on the image reading information read by the first and second reading units 13 and 14, mails are distributed to a predetermined stacking unit 19 and classified. Accumulated.

Next, a transport device (transport mechanism) that transports mail along the transport path 8a will be described.
As shown in FIG. 2, the conveying device 30 includes a plurality of loop-shaped conveying belts and a plurality of drive motors that drive the conveying belts, and is configured to convey a mail piece between two opposed conveying belts. Has been. The first conveyor belt 32 is, for example, stretched between two driven pulleys 32a and 32b and one drive pulley 32c arranged in a loop, forming a substantially triangular closed loop. A tension pulley 32 d is pressed against the outer surface side of the first transport belt 32. In the first conveyance belt 32, a portion 32a extending between the two driven pulleys 32a and 32b extends along the conveyance path 8a.

  The first conveyor belt 32 travels in a predetermined direction (arrow direction) by rotating the drive pulley 32c with a drive motor. As shown in FIG. 3, the first conveying belt 32 is formed with a plurality of through holes 36 as detection units. These through holes 36 are arranged at a predetermined interval (pitch) d along the longitudinal direction (traveling direction) of the first conveying belt 32. In order to maintain the strength of the belt, the pitch d of the through holes 36 is set larger than the width W of the belt. Further, the through hole 36 is provided, for example, at the center position in the width direction of the belt. The formation position of the through hole 36 is set at the center in the width direction of the conveyor belt because of the tension of the conveyor belt, but the present invention is not limited to this, and it is also possible to provide the through holes side by side on the left and right edges of the conveyor belt. It is.

  A second conveyor belt 38 is provided to face the first conveyor belt 32. For example, the second conveyor belt 38 is stretched over two driven pulleys 40a and 40b and one drive pulley 40c arranged in a loop, forming a substantially triangular closed loop. Two tension pulleys 40 d are pressed against the outer surface side of the second transport belt 38. In the second transport belt 38, a portion 38a extending between the two driven pulleys 40a and 40b extends along the transport path 8a and is adjacent to the first transport belt 32. A plurality of through holes 36 are formed in the second transport belt 38 at a predetermined pitch d.

  By rotating the drive pulley 40c with a drive motor, the second conveyor belt 38 travels in a predetermined direction (the same direction as the first conveyor belt 32) at the same conveyance speed as the first conveyor belt 32. The postal matter P is transported in the direction of the arrow along the transport path 8a by the first and second transport belts while being sandwiched between the first transport belt 32 and the second transport belt 38.

  Further, a plurality of sets of transport belts having the same configuration as the set of the first and second transport belts 32 and 38 are disposed along the transport path 8a. For example, a set of a loop-like third conveyor belt 42 and a fourth conveyor belt 44 is provided on the upstream side of the first and second conveyor belts 32, 38, and a loop-like fifth conveyor belt is provided on the downstream side. A set of 46 and a sixth conveyor belt 48 is provided. The third and fourth conveyor belts 42 and 44 are continuously provided on the downstream side of the first and second conveyor belts 32 and 38 along the conveyance path 8a. The fifth and sixth conveyor belts 46 and 48 are continuously provided on the upstream side of the first and second conveyor belts 32 and 38 along the conveyance path 8a. Further, a part of the sixth conveyor belt 48 is disposed so as to overlap a part of the first conveyor belt 32, that is, to face the part.

  These third to sixth conveyor belts 42, 44, 46, and 48 travel in a predetermined direction by drive motors and drive pulleys 43c, 45c, 47c, and 50c, respectively. Thus, the postal matter P passes through the third and fourth conveyor belts 42 and 44, the first and second conveyor belts 32 and 38, and the fifth and sixth conveyor belts 46 and 48 in order. Conveyed in the direction. Similarly to the first conveyor belt 32, the third to sixth conveyor belts 42, 44, 46, and 48 are provided with a plurality of through holes 36 as detection units at a predetermined pitch.

  As shown in FIGS. 2 and 4, the conveying device 30 includes a detector that detects the traveling speed (conveying speed) of each conveying belt, a rotary encoder that detects the rotational speed of each driving motor or driving pulley, and a predetermined value or more. When a speed difference occurs, a display 70, a speaker 71 or a lamp for notifying this, and a control unit 72 for controlling the operation of the transport device are provided. Here, the detector includes first to sixth detectors 64a, 64b, 64c, 64d, 64e, and 64f provided for each of the conveyor belts, and driving motors 60a, 60b, and 60c of the conveyor belts. , 60d, 60e, 60f are connected to rotary encoders 62a, 62b, 62c, 62d, 62e, 62f.

  The conveyance device 30 can grasp the conveyance position of the mail in real time by detecting the conveyance speed of the mail, that is, the traveling speed of the conveyance belt, with respect to each conveyance path 8a. In the present embodiment, an optical sensor is used as a detector for detecting the traveling speed of the conveyor belt, and the rotational speed of the drive motor is detected by the rotary encoders 62a to 62f. Calculate travel speed.

  As shown in FIG. 2, each of the first to sixth detectors 62a to 62f uses an optical sensor, and includes a light emitting sensor 61a and a light receiving sensor 61b that are arranged to face each other with a conveyance belt interposed therebetween. The light emitting sensor 61a and the light receiving sensor 61b are installed so that the optical axis of the detection light is orthogonal to the conveying belt, that is, substantially coincides with the central axis of the through hole of the conveying belt. Then, the detection light emitted from the light emitting sensor 61a is detected by the light receiving sensor 61b through the through hole 36 of the conveyance belt, thereby detecting the traveling speed of the conveyance belt from the detection time and the pitch d between the adjacent through holes 36. .

  The installation locations of the first to sixth detectors 62a to 62f are portions where the postal matter P is not conveyed on the conveyor belt. That is, if an optical sensor is installed in a portion where the mail piece is conveyed, the detection light of the optical sensor is shielded when the mail piece P blocks the through hole 36 of the conveyance belt, and the through hole 36 of the conveyance belt is blocked. This is because the position cannot be detected accurately, and the accurate conveyance speed cannot be detected. For more accurate detection, it is desirable to detect the through hole 36 at a position where there is little elongation and vibration of the conveyor belt. In the present embodiment, the detectors 62a to 62f are installed on the upstream side of the drive pulleys 32c to 50c with respect to the travel direction of the transport belt so as to face the transport belt at a portion where the distance between the pulleys is short. Yes.

  Using the optical sensor, the traveling speed of the conveyor belt is detected as follows. The speed detection of the first transport belt 32 will be described as an example. As shown in FIG. 5A and FIG. 6, for example, the first conveyor belt 32 travels at a traveling speed at which the transport operation has started, and the through hole 36a of the conveyor belt 32 faces the first detector 64a. When it reaches the position, the detection light of the light emitting sensor 61a passes through the through hole 36a, and the light receiving sensor 61b receives this and outputs a “bright” signal.

  When the conveyance operation continues and the first conveyance belt 32 is in the state shown in FIG. 5B, the detection light is shielded by the first conveyance belt 32, and the light receiving sensor 1b cannot receive the detection light and enters the “dark” state. . Further, when the first conveying belt 32 travels and the next through hole 36b comes to a position facing the first detector 64a as shown in FIG. 5C, the light receiving sensor 61b detects through the through hole 36b. It receives light and becomes “bright”.

As shown in FIG. 6, the control unit 72 detects the time T from the “bright” signal sent from the first detector 64a to the next “bright” signal, and the adjacent through holes 36a, 36b. Based on the distance (pitch) d and the time T, the traveling speed of the first conveyor belt 32 is calculated from the following equation.
Travel speed = d / T
Thus, the conveyance speed of the conveyance belt can be detected by detecting the “light, dark” state of the light receiving sensor 61b. Even if slip occurs between the first conveyor belt 32 and the drive pulley 32c, the first detector 64a detects the traveling speed (conveyance speed) of the first conveyor belt 32 itself, so that accurate conveyance is possible. The speed can be detected.

Further, the control unit 72 detects the rotational speeds of the drive motor and the drive pulley based on detection signals from the rotary encoders 62a to 62f, and detects the traveling speed of the conveyor belt based on the rotational speed. Further, the control unit 72 calculates the travel speed of the first to sixth transport belts detected by the first to sixth detectors 64a to 64f and the rotational speed of the drive motor detected by the rotary encoders 62a to 62f. The slip amount between the conveyor belt and the drive pulley is detected from the difference. That is, the slip amount is
Slip amount = (Rotary encoder detection speed)-(Detector transport speed)
Can be obtained.

  The control unit 72 can detect the accurate conveyance speed by correcting the detection unit of the rotary encoder using the calculated slip information. In addition, when the conveying belt is worn out and stretched and the tension becomes weak, it is considered that a larger slip occurs. Therefore, it is possible to know an appropriate maintenance time for the conveyor belt according to the increase in the detected amount of slip.

Next, the processing operation of the transport apparatus 30 configured as described above will be described.
As shown in FIG. 7, when the operation of the mail processing apparatus is started, the transport apparatus 30 drives the drive motors 60a to 60f (S1). As a result, the first to sixth conveyor belts and other conveyor belts travel at a predetermined speed, and the postal matter P is conveyed by the conveyor belt (S2). During the transport operation, the transport speeds of the transport belts 32, 38, 42, 44, 46, and 48 are detected by the first to sixth detectors 64a to 64f (S3). Further, the rotational speeds of the drive motors 60a to 60f are detected by the rotary encoders 62a to 62f (S4).

  Based on the detected traveling speed of the conveyor belt, the controller 72 detects a speed difference between the conveyor belts in each group and a speed difference between adjacent conveyor belt groups (S5). That is, the controller 72 determines the difference in the conveyance speed between the first and second conveyance belts 32 and 38 facing each other, the difference in the conveyance speed between the third and fourth conveyance belts 42 and 44 opposed to each other, and the fifth opposite each other. And the difference in the conveyance speed between the sixth conveyance belts 46 and 48, the difference in conveyance speed between the first conveyance belt 32 and the third conveyance belt 42, and the first conveyance belt 32 and the fifth conveyance belt 46, Are detected and monitored.

  Then, the control unit 72 determines whether or not the detected transport speed difference exceeds a predetermined value (S6). For example, when the normal transport speed is 3 m / s and the speed difference is 10% or more, The control unit 72 displays “speed difference occurrence” on the display 70 or outputs warning information from the speaker 71 to notify the operator (S7). That is, when the above conveyance speed difference occurs between the opposed conveyance belts, there is a possibility that the postal matter sandwiched between the conveyance belts is rubbed by the conveyance belt and becomes dirty or damaged. In addition, when a conveyance speed difference occurs between the conveyance belts that are continuously arranged, the postal matter may be distorted or curved between these conveyance belts, which may cause jamming or damage to the postal matter. Therefore, the control unit 72 notifies the operator of the occurrence of a speed difference of a predetermined value or more as described above, and notifies the necessity of attention or adjustment of the conveying device, maintenance of the conveying belt, and the like.

  Further, when the speed difference between the belts is within a predetermined value, the control unit 72 detects the difference between the traveling speed of each conveyor belt and the rotational speed of the drive motor detected by the rotary encoder, that is, occurrence of slip. (S8), it is determined whether or not the slip amount exceeds a predetermined value (S9). When the slip amount exceeds the predetermined value, the control unit 72 displays “slip occurrence” on the display unit 70 or outputs warning information from the speaker 71 to notify the operator (S7). That is, if the amount of slip increases, it becomes difficult to drive the transport belt at a desired transport speed, which may cause the above-described speed difference between the transport belts. Therefore, the controller 72 causes the operator to generate the slip. Informs and informs the necessity of attention or adjustment of the conveying device, maintenance and replacement of the conveying belt, and the like.

  The controller 72 may stop the drive motors 60a to 60f (S10) and stop the mail transport operation when the speed difference occurs or when the slip occurs. Further, the control unit 72 continues the postal matter transport operation when the transport speed difference between the transport belts does not reach the predetermined value and when the slip amount does not reach the predetermined value.

  On the other hand, as shown in FIG. 8, the transport device 30 transports and sorts mail items to the plurality of stacking units 19 (19 a, 19 b, 19 c) as follows and stacks them in the stacking unit. In other words, the conveying device 30 detects a conveying belt 80 having a plurality of through holes (detecting portions) provided at a predetermined pitch d along the longitudinal direction, and detects the through holes, and determines the traveling speed of the conveying belt 80. An optical detector 82 for detection and a plurality of sorting sections 84a, 84b, 84c provided in the middle of the conveyance path are provided.

The transport device 30 transports the postal matter P by the transport belt 80, and detects the traveling speed of the transport belt 80 by the detector 82, an optical sensor (not shown), and a rotary encoder. Based on the image reading information read by the first and second reading units 13 and 14 described above, one of the sorting mechanisms 84a, 84b, and 84c is operated, and the mail that has been conveyed corresponds to each type. To the accumulating unit 19. At this time, it is assumed that the postal matter P is being conveyed at the speed S. When the control unit 72 of the transport device 30 determines that the postal matter P1 is to be accumulated in the accumulating unit 19b based on the image reading information of the postal matter read by the first and second reading units 13 and 14, the postmarking unit 20 If the distance between the postal matter P1 and the sorting mechanism 84b when passing through is D, the control unit 72 can obtain the time required for the postal matter P1 to reach the sorting mechanism 84b by the following equation.
(Time to reach distribution mechanism 84b) = D / S
Moreover, the control part 72 can obtain | require how much position the mail piece P1 is conveyed after passing the postmark part 20 by a following formula.
(Conveyance distance from postmark part 20 of postal items) = S × (Time after passing postmark part 20)
When the postal matter P1 is normally conveyed to the distribution mechanism 84b, the control unit 72 operates the distribution mechanism 84b after the arrival time, and distributes the postal matter P1 from the conveyance belt 80 to the stacking unit 19b.

  Further, if the mail piece P1 does not arrive at the distribution mechanism 84b even when the arrival time at the distribution mechanism 84b has elapsed, there is a possibility that the mail piece P1 is jammed in the conveyance path. If the postal matter is jammed, the postal matter P1 blocks the postal matter conveyed later, which may damage the postal matter. For this reason, when the control unit 72 detects that the mail has not arrived, the control unit 72 immediately stops the transport operation. Moreover, since the control part 72 can grasp | ascertain the position (jam position) of a mail thing easily, it becomes possible to alert | report an operator of the maintenance of jam processing.

  According to the postal matter processing apparatus configured as described above, the postal matter transport speed can be accurately detected and controlled to a desired transport speed, and postal items can be processed smoothly. It is possible to prevent the postal matter from being soiled or damaged due to the speed difference between the transport belts, or to prevent the postal matter from jamming, and to accurately transport the postal matter at a desired speed, thereby facilitating the processing. Furthermore, slip between the drive pulley of the drive motor and the conveyor belt can be detected, and it is possible to prevent the occurrence of a speed difference between the conveyor belts, and maintenance such as replacement and adjustment of the conveyor belt is possible. It becomes possible to know the time accurately.

The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.
For example, the detector for detecting the traveling speed of the conveyor belt is not limited to the optical type, and various sensors can be used. The number and combination of the conveyor belts are not limited to the above-described embodiment, and various changes can be made. Further, the paper sheets to be processed are not limited to postal items but can be applied to various paper sheets.

DESCRIPTION OF SYMBOLS 1 ... Hopper, 2a ... Thickness selection part, 2b ... Width selection part 5th ... Buffer part,
8a ... conveying path, 13 ... first reading unit, 14 ... second reading unit, 19 ... stacking unit,
30 ... Conveying device, 32, 38, 42, 44, 46, 48 ... First to sixth conveying belts,
32c, 40c, 43c, 45c, 47c, 50c ... drive pulley,
60a, 60b, 60c, 60d, 60e, 60f ... drive motor 62a, 62b, 62c, 62d, 62e, 62f ... rotary encoder,
64a, 64b, 64c, 64d, 64e, 64f ... 1st-6th detector,
72. Control unit

Claims (6)

A conveying device that has a loop-shaped first conveying belt and a second conveying belt arranged opposite to each other, and conveys the paper sheet while being sandwiched between the first and second conveying belts;
First and second detectors for detecting traveling speeds of the first and second conveyor belts, respectively;
A control unit for detecting a difference between the traveling speeds detected by the first and second detectors and informing when the difference exceeds a predetermined value;
A paper sheet processing apparatus comprising: A rotation speed detector for detecting rotation speeds of first and second drive motors for driving the first and second transport belts, respectively;
The control unit detects a difference between the traveling speed detected by the first and second detectors and the rotational speed detected by the rotational speed detector, and the speed difference becomes a predetermined value or more. The paper sheet processing apparatus according to claim 1, further informing at the time of printing. The transport device includes a loop-shaped third transport belt provided continuously with the first or second transport belt along a transport path of paper sheets,
A third detector for detecting a traveling speed of the third conveyor belt;
The controller detects a speed difference between the traveling speed of the first or second conveyor belt detected by the first and second detectors and the traveling speed of the third conveyor belt detected by the third detector. And the paper sheet processing apparatus of Claim 1 or 2 alert | reported when the said speed difference becomes more than predetermined value. The first and second conveyor belts each have a plurality of through holes provided at a predetermined pitch in the longitudinal direction of the belt,
4. The paper sheet according to claim 1, wherein the first and second detectors are sensors that detect the through-holes and detect a traveling speed of the first and second transport belts. 5. Processing equipment. The transport device includes at least two driven pulleys arranged at intervals along a transport path of paper sheets, and a drive pulley that is rotated by a first drive motor, and the first transport belt includes: Spanned between two driven pulleys and a drive pulley,
The first detector faces the first conveyor belt between the drive pulley and a driven pulley closest to the drive pulley on the upstream side of the drive pulley with respect to the traveling direction of the first conveyor belt. The paper sheet processing apparatus according to claim 4, wherein the paper sheet processing apparatus is disposed.   The through holes of the first conveyor belt and the second conveyor belt are respectively formed in the center in the width direction of the conveyor belt, and are arranged in the running direction of the conveyor belt at a pitch larger than the width of the conveyor belt. The paper sheet processing apparatus according to 4 or 5.

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