JP3716153B2 - Paper sheet sorting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper sheet sorting apparatus that sorts paper sheets to which sorting information is assigned according to the sorting information.
[0002]
[Prior art]
Among the conventional paper sheet sorting apparatuses, there is a large capacity stacking apparatus in the paper sheet classification disclosed in, for example, Japanese Patent Application Laid-Open No. Sho 62-74866. Here, a method of assigning a plurality of collection boxes to the same division information is shown. Thereby, when there are many letters having the same kind of sorting information and the stacking box becomes full in a short time, it can be distributed to other stacking boxes to reduce the inability to sort.
[0003]
[Problems to be solved by the invention]
However, even when a plurality of collection boxes are assigned to the same classification information, the accumulation capacity per piece does not change. For this reason, the number of times of fullness is the same, and it is necessary to take out frequently. In addition, since a plurality of collection boxes are assigned to the same sorting information, there is a problem that the types that can be sorted are reduced.
[0004]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to reduce the number of times of taking out and reduce the burden on an operator even when there is a lot of sort information of the same kind in a paper sorter. Another object of the present invention is to propose a device configuration in which the types that can be classified do not decrease.
[0005]
The object is to sequentially supply a paper sheet having classification information, a supply unit that sequentially supplies the paper sheet, a conveyance path that conveys the paper sheet supplied by the supply unit, and a paper that is conveyed through the conveyance path. A reading unit that reads the classification information given to the leaves, and a stacking unit group in which stacking units that stack the paper sheets distributed based on the sorting information read by the reading unit are arranged in a matrix. In the paper sheet sorting apparatus, the stacking means constituting the stacking means group includes a stacking means having a larger outer dimension than the other stacking means, and the stacking means having a larger outer dimension is a back surface of the stacking means. Is achieved by being installed at an angle closer to the horizontal than the base member of the other stacking means .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic view of a letter sorter which is an example of an embodiment of a paper sheet sorting apparatus according to the present invention. An example of paper sheets handled by the apparatus of the present invention is a regular postal letter such as a postcard or a sealed letter.
[0007]
A letter sorter 50 shown in FIG. 1 reads sort information such as an address and a bar code written on the letter 1, and performs letter sort processing based on this sort information.
[0008]
The components of the letter sorter 50 will be described. 2 is a hopper which conveys the letter 1 piled up in the thickness direction in bundle shape. A supply unit 3 sequentially supplies the letters 1 one by one. The supply unit 3 uses, for example, a belt with a hole, sucks air through the hole to adsorb the letter 1 to the belt, and moves the belt to separate and supply the letter 1 one by one. It has become. In FIG. 1, the supply unit 3 is configured to supply the letter 1 downward, but the supply direction may be any direction such as upward in the present invention.
[0009]
Reference numeral 4 denotes a conveyance path for conveying the letter 1, for example, conveying the letter 1 with the belt opposed thereto. Reference numeral 5 denotes a foreign matter detection unit that detects that the letter 1 is not suitable for processing by the letter sorter 50. For example, it is detected that the size or hardness of the letter 1 is inappropriate or that two or more sheets are supplied in an overlapping manner by the passage time of the letter or deformation of the belt in the conveying path 4.
[0010]
Reference numeral 6 denotes a first transfer gate, which has a configuration in which, for example, a gate member for switching the transfer direction of the letter 1 is driven by a solenoid. Reference numeral 7 denotes first reject accumulating means having a box-like shape. Reference numeral 8 denotes a first positioning unit that corrects the posture of the letter 1 and adjusts the posture of the letter by pressing one side of the letter 1 against a surface serving as a reference for conveyance, for example, by a belt that is skewed with respect to the conveyance direction. . Reference numeral 9 denotes a reading unit that reads the classification information of the letter 1. An example of sorting information in the letter sorter 50 is an address written in characters or a barcode. The first positioning unit 8 is on the upstream side of the reading unit 9, and the reading accuracy is improved by conveying the letter 1 to the reading unit 9 after adjusting the posture of the letter 1.
[0011]
Reference numeral 10 denotes a double feed detection unit that detects that two or more letters 1 are erroneously supplied by the supply unit 3. For example, the opposing belts are driven at different speeds, the overlapping letters are shifted from each other, and a change in length is detected to determine double feeding.
[0012]
Reference numeral 11 denotes a second transfer gate, which is configured to drive a gate member for switching the transfer direction of the letter 1, for example, with a solenoid. Reference numeral 12 denotes a second reject accumulating means having a box-like shape.
[0013]
Reference numeral 13 denotes a second positioning unit that corrects the posture of the letter 1, and reference numeral 14 denotes a printing unit that prints a machine code such as a barcode according to the classification information of the letter 1. The second aligning unit 13 is located upstream from the printing unit 14 and adjusts the posture of the letter 1 and then transports it to the printing unit 8 to print at a predetermined position. Reference numeral 15 denotes a print confirmation unit, for example, a barcode reader.
[0014]
Reference numeral 16 denotes a stage gate that distributes the letter 1 to the conveyance path of each stage. For example, a gate member that switches the conveyance direction of the letter 1 is driven by a solenoid.
[0015]
Reference numeral 17 denotes a stacking unit that stacks the letter 1 so as to be substantially parallel to the letter 1 conveyed on the conveyance path and stacked in the thickness direction of the letter 1. A plurality of stacking means 17 are provided in a matrix. A series of stacking means 17 adjacent to each other in the row direction, that is, in the transport direction of the transport path 4 is a division stage 18, and the entire stacking stacking means 17 is defined as a stacking means group 19. In relation to the present invention, FIG. 1 shows two types of integration means 17 having different integration capacities, and it is assumed that the large capacity integration means 17b has a larger integration capacity than the integration means 17a. Detailed configurations of the accumulating unit 17a and the large-capacity accumulating unit 17b will be described later. Further, among the stacking means 17, the stacking means 17 located on the most downstream side of each of the branched transport paths 4 is particularly referred to as a terminal stacking means 17c.
[0016]
Reference numeral 20 denotes a video coding system in which an operator visually checks the address image of the letter 1 that cannot be automatically read by the reading unit 9 and inputs classification information.
[0017]
In addition, regarding the conveyance path 4, the delay conveyance path 4 a between the reading unit 9 and the printing unit 14, the conveyance path downstream from the step gate 16 is the most downstream from the step conveyance path 4 b, and the bent portion on the upstream side of the step gate 16. A conveyance path where the stage conveyance path 4b branches to the side stage conveyance path 4b is referred to as a branch conveyance path 4c.
[0018]
The delay conveyance path 4a is a conveyance path that holds the letter 1 while conveying the letter 1 as an image and recognizes it as a destination. As an example, if the conveyance speed is 3 m / s and the time required for recognition is 5 seconds at the maximum, the delay conveyance path 4a needs to be 15 m or more. In order to efficiently store such a long conveyance path, it is desirable to provide it around the stacking means group 19. In the example shown in FIG. 1, the delay conveyance path 4 a is installed above the stacking means 17.
[0019]
Further, the stage transport path 4b is on the downstream side from the stage gate 16, and is a transport path 4 divided into a plurality. The stage conveyance path 4 b is provided along the sorting stage 18, and is provided for each stage of the sorting stage 18.
[0020]
The branch conveyance path 4c is on the upstream side of the stage conveyance path 4b and is a conveyance path provided with a stage gate 16. The branch conveyance path 4c has a substantially vertical relationship with the stage conveyance path 4b and the divisional stage 18.
[0021]
Next, the operation of the letter sorter 50 will be described along the flow of the letter 1. The operator places the letter 1 on the hopper 2 in a bundle shape in which the letters 1 are stacked in the thickness direction. The hopper 2 conveys the bundled letter 1 toward the supply unit 3, and the supply unit 3 sequentially supplies the letter 1 from the vicinity to the conveyance path 4.
[0022]
On the transport path 4, it is first determined whether or not the letter 1 can be processed by the foreign matter detector 5. Here, when it is determined that the processing cannot be performed, the first transfer gate 6 is switched, and the letter 1 is inserted into the first reject stacking means 7.
[0023]
On the other hand, the letter 1 determined to be processed is read by the reading unit 9 for classification information such as an address. Next, the double feed detection unit 10 detects that two or more letters do not overlap. Here, when it is determined that two or more sheets overlap, the second transfer gate 11 is switched, and the letter is put into the second reject stacking means 12.
[0024]
The letter 1 determined to be normal is classified into any stacking means 17 in the stacking means group 19. Therefore, the section information is recognized while being transported on the delay transport path 4a. Then, after the orientation is adjusted by the second positioning unit 13, a barcode or the like is printed by the printing unit 14 in accordance with the recognized classification information. When the printing confirmation unit 15 confirms that the barcode or the like has been printed normally, the stage gate 16 is switched according to the classification information, distributed to the stage conveyance path 4b, and the letter 1 is input to the predetermined stacking means 17.
[0025]
For the letter 1 that cannot be automatically recognized by the reading unit 9, an identification number is assigned by the printing unit 14. Then, the address image of the letter 1 is transmitted to the video coding system 20, and the letter 1 is divided into the accumulating means 17 assigned to the video coding resupply. On the other hand, the worker inputs the segment information using the video coding system 20. Thereafter, when the letter 1 is supplied again, the corresponding classification information is printed from the identification number and introduced into the predetermined stacking means 17.
[0026]
In addition, the letter 1 may not be sorted into the predetermined stacking means 17 due to a poor posture during conveyance or the stacking means 17 corresponding to the sorting information is full. To input. Therefore, the terminal stacking unit 17c cannot be used as the stacking unit 17 for introducing the letter 1 corresponding to the division information.
[0027]
The letter sorter 50 performs the above processing for a plurality of letters in parallel, and sorts the letters into predetermined stacking means 17.
[0028]
Next, FIG. 2 shows an example of the configuration of the stacking means 17a. First, reference numeral 101 denotes a sorting gate, which is configured to drive a gate member for sorting letters 1 by a solenoid or the like (not shown). Note that, as shown by a solid line in FIG. 2, the time when it is at a position that intersects with the step conveyance path 4b is referred to as the ON side, and when it does not intersect as indicated by the dotted line, it is referred to as the OFF side.
[0029]
Reference numeral 102 denotes an accumulation guide, which is configured to swing as indicated by an arrow B around a fulcrum 103. Reference numeral 104 denotes a bottom plate, which is configured to move as indicated by an arrow C at a fulcrum 105. When a letter is not accumulated by an elastic body such as a spring (not shown), the top plate (on the side close to the sorting gate 101). When a large number of letters are accumulated, the letters are supported so as to move downward (to the side far from the sorting gate 101). When there is no letter 1 already accumulated in the accumulating means 17a, the letter 1 is accumulated with its one side contacting the bottom plate 104, and when there is the letter 1 already accumulated in the accumulating means 17, The stacked letters 1 are sequentially stacked so as to be stacked in the thickness direction of the letters 1 so that the letters 1 are stacked in contact with one side.
[0030]
Reference numeral 106a denotes a base member serving as a reference for installing the stacking means 17a. Reference numeral 107 denotes a frame member that forms the outer periphery of the stacking means 17a. Of the six surfaces constituting the space for collecting the letters 1 (hereinafter referred to as the accumulation space), two surfaces substantially perpendicular to the conveying direction of the conveying path 4 are the frame members 107, and the surface opposite to the operator is the base member 106a. The bottom surface of the collected letters 1 is constituted by the bottom plate 104. Further, the surface on the conveyance path 4 side is a surface formed by the lower surface of the sorting gate 101 and the place where the accumulation guide 102 is raised most, and the surface on the operator side is opened so that the collected letters 1 can be taken out.
[0031]
Reference numeral 108 denotes a conveyance detection unit that is provided in the vicinity of the conveyance path 4 and detects the letter 1 conveyed on the conveyance path 4. The conveyance detection unit 108 includes, for example, a pair of photodiodes and phototransistors, and detects the blocking of the optical axis caused by the letter. By doing so, the conveyance of the letter 1 is detected.
[0032]
Reference numeral 109 denotes a full detection means for detecting that the stacking means 17a is full, for example, a photo interrupter comprising a pair of light emitting diodes and a phototransistor, a push switch, a magnet switch, or the like. Reference numeral 110 denotes a sorting display board, for example, an LCD display or a paper card. On the classification display board 110, the classification of the letter 1 classified into the stacking means 17a, for example, a zip code is displayed.
[0033]
111 is a full display means for notifying the operator that the stacking means 17a is full. For example, a lamp or an alarm device. Further, Ta is the maximum length of the accumulation space in the thickness direction of the accumulated letters 1.
[0034]
The operation when the letter 1 is input to the stacking means 17a having the above configuration will be described. The letter 1 conveyed on the conveyance path 4 is detected by the conveyance detection means 108 at its conveyance position. When the vicinity of the stacking means 17a corresponding to the sorting information of the letter 1 is reached, the sorting gate 101 is switched to the ON side, and the letter 1 is introduced into the stacking means 17a.
[0035]
The letter 1 advances along the lower surface of the sorting gate 101 as indicated by the arrow A, and enters between the letter 1 already accumulated and the accumulation guide 102. Then, it is stopped by being pressed by the accumulation guide 102 or when the tip of the letter 1 hits the frame member 107, and the letter 1 is accumulated in a state substantially parallel to the transport path 4b.
[0036]
When the letters 1 are accumulated, the accumulation guide 102 swings as indicated by an arrow B and is lifted by the thickness of the letter. By repeating such an operation, a large number of letters are accumulated, and when the accumulation guide reaches the position indicated by 102b, the full detection means 109 is shielded to detect fullness.
[0037]
The conventional paper sheet sorting apparatus has a configuration as shown in FIG. 3, for example, and the stacking means group 19 is composed only of stacking means 17a having substantially the same capacity. Meanwhile, when the stacking means 17a detects that the stacking means 17a is full, the stacking means 17a holds the sorting gate 101 on the OFF side so that no more letters 1 are inserted. Therefore, the letter 1 to be introduced into the full stacking means 17a cannot be sorted and is put into the terminal stacking means 17c, and the sorting rate is lowered.
[0038]
In order to avoid this, in the conventional paper sheet sorting apparatus, when a large number of letters are sorted for certain specific sorting information, a plurality of stacking means 17a are assigned to the same sorting information to increase the stacking capacity.
[0039]
However, in recent years, the processing speed of paper sheet processing apparatuses has improved (for example, from 22,000 mails per hour to 40,000 mails per hour), and barcodes and the like have been printed on almost all letters. As described above, when the address cannot be automatically read by the reading unit 9, the address is divided into the accumulating means 17a assigned to the video coding resupply. Although the address recognition rate is improving year by year, it is currently about 70%, for example, and the remaining 30% is classified as video coding resupply. On the other hand, the stacking means 17a assigned to the other sorting information has an average of about 0.5% letters when the number of stacking means 17a is about 200. It can thus be seen that a very large number of letters 1 are introduced into the collecting means 17a assigned to the video coding resupply.
[0040]
As an example, assuming that the processing speed is 40,000 mails per hour, the average thickness of the letter is 1 mm, the capacity of the stacking means 17 is 70 mm, and the unrecognizable rate is 30%, one stacking means 17a is filled in 21 seconds. Become. That is, 70 [mm] ÷ (40000 [communication / hour] ÷ 3600 [second / hour] × 0.3 × 1 [mm]) = 21 [second].
[0041]
Even if a plurality of stacking means 17a are assigned, the letter 1 must be taken out from the full stacking means 17a before the other stacking means 17a becomes full.
[0042]
Therefore, the operator must always pay attention to the collecting means 17a assigned to the video coding resupply, and the problem that the letter 1 is taken out from the collecting means 17a frequently (for example, every 21 seconds). there were.
[0043]
Further, in the past, the letter 1 that could not automatically read the address was manually sorted, so the letter 1 could be scattered at the time of storage. However, since it has come to be re-supplied, it is necessary to keep a bundled state, and handling is required. As a result, the burden on the operator, including the storage of the letter, has increased.
[0044]
Therefore, in the present invention, as shown in FIG. 1, at least one large-capacity accumulating means 17b is provided in the accumulating means group 19. In particular, the large-capacity accumulating means 17b is provided in the accumulating means group 19 other than the terminal accumulating means 17c, and is assigned to the classified information to which a large number of letters belong. FIG. 4 shows the configuration of the mass storage means 17b.
[0045]
In order to increase the integrated capacity compared to the integrating means 17a, the large capacity integrating means 17b has a larger external dimension. That is, the length Tb in the thickness direction of the letter 1 is long, and Tb> Ta. Further, in order to operate the letter sorter 50, the stacking means 17a and the stacking amount may be required to be compatible. Therefore, the accumulation limiting means 112 is provided.
[0046]
The accumulation limiting means 112 is, for example, a photo sensor or a micro switch, and stops the introduction of the letter 1 when detecting that the bottom plate 104 has moved to a predetermined position. Further, for example, a physical stopper may be provided. When the bottom plate 104 or the fulcrum 105 is lowered to a predetermined position, the amount of accumulation is limited so as not to be lowered by coming into contact with the accumulation limiting means 112.
[0047]
Further, as the accumulated amount increases, the accumulated letters 1 tend to fall to the operator side. Therefore, the base 106b is tilted to a side closer to the horizontal than the base member 106a, thereby preventing the fall. Here, if the letter 1 conveyed by the step conveyance path 4b and the letter 1 accumulated by the large-capacity accumulating means 17b form a large angle in the depth direction, they may not be normally accumulated. For example, when the letter 1 is introduced, it collides with the base surface 106b and the letter 1 jumps out of the large capacity accumulating means 17b, or leans against the base surface 106b and is not accumulated substantially parallel to the bottom plate 104 and is not stable. appear.
[0048]
Therefore, the step conveyance path 4b is configured so that the letter 1 to be conveyed is substantially perpendicular to the base surface 106b. Therefore, the stage conveying path 4b of the accumulating means 17a and the large capacity accumulating means 17b is configured with an angle so that the surfaces for conveying the letter 1 intersect each other.
[0049]
The other components are almost the same as the stacking means 17a, and the operation for stacking the letter 1 is also the same. By providing such a large-capacity accumulating means 17b and assigning it to sorting information in which letters are sorted in large quantities, the frequency of taking out can be reduced, and the burden on the operator can be reduced.
[0050]
Further, the place where the large-capacity accumulating means 17b is provided in the accumulating means group 19 is preferably a sectioned stage 18 that is not sandwiched between the stage conveying paths 4b, that is, has the stage conveying path 4b only on one side. For this purpose, the regularity between the stage conveying path 4b and the sorting stage 18 is maintained, so that the workability is good, and the configuration can be made without reducing the number of stacking means 17, so that the sortable type does not change. There are advantageous reasons.
[0051]
In this booklet sorter 50, as shown in FIG. 1, it is desirable to provide a mass storage means 17b in the lowest sorting stage 18. This is related to the configuration of the branch conveyance path 4c in addition to the above reason.
[0052]
FIG. 5 shows the shape of the branch conveyance path 4c. When the branch conveyance path 4c is provided in a substantially vertical direction, the upstream side thereof is a floor surface or a ceiling. Therefore, it is necessary to provide a bent portion E of approximately 90 degrees or more for conveyance. Further, since the branch conveyance path 4c and the sorting step 18 are in a substantially vertical relationship, a bent portion F of about 90 degrees is provided on the downstream side of the step gate 16. If the radii of the respective bent portions are RE and RF, the lowermost stage conveyance path 4b must be separated from the lower end of the letter sorter 50 by at least (RE + RF).
[0053]
Here, in consideration of breakage when the letter 1 is conveyed, RE and RF must be larger than a predetermined value, for example, 300 mm or more. Therefore, the lowest stage conveyance path 4b has a height of at least 600 mm. On the other hand, the height of the stacking means 17a is Ta, for example, about 180 mm.
[0054]
Therefore, in the case of this letter sorter 50, an unused space is created below the stacking means group 19.
[0055]
Therefore, in this letter sorter 50, by providing the large-capacity accumulation means 17b in the lowest sorting stage 18, it is possible to increase the accumulation capacity using unused space. Thereby, it is possible to reduce the take-out frequency without increasing the overall size of the letter sorter 50.
[0056]
Furthermore, as shown in FIG. 6, due to the apparatus configuration of the letter sorter 50, the delay conveyance path 4 a may be provided below the stacking means group 19. Even in such a case, as described above, since an unused space is formed between the stacking means group 19 and the delay conveyance path 4a, the large-capacity stacking means 17b can be provided.
[0057]
However, a failure such as a jam may occur in the delay conveyance path 4a. At this time, it is difficult to remove the obstacle because the large-capacity accumulating unit 17b covers or is in the vicinity of the delay conveyance path 4a when viewed from the operator side.
[0058]
In order to solve this problem, as shown in FIGS. 7 and 8, a movement holding means 201 of the large-capacity accumulation means 17b is provided. 7 and 8 are cross-sectional views of the lower part of the stacking means group 19 and the delay conveyance path 4a when viewed in the conveyance direction of the letter 1. FIG. 7 shows an example in which the base member 106b of the large-capacity accumulation means 17b is moved in the horizontal direction, and FIG. 8 shows an example in which the base member 106b and the base member 106a are moved so as to be substantially parallel.
[0059]
First, the large-capacity accumulating means 17b is rotatably supported as indicated by an arrow D around a fulcrum 202 provided at the upper part on the worker side. The position indicated by the dotted line is when the operation is normal, and the solid line is the position when removing the fault.
[0060]
The latch mechanism 203 is provided as an example in consideration of the fact that it is moved to the position of the solid line and the operator removes the failure by one person.
[0061]
The latch mechanism 203 shown here has a fulcrum 204 on the base member 106a side and a fulcrum 205 on the large-capacity accumulation means 17b side, both of which are rotatably supported. The two fulcrums are connected by a telescopic rod 206, and the rod 206 is provided with a stopper 207.
[0062]
By fixing the length of the rod 206 with the stopper 207, the mass storage means 17b can be fixed at the position of the solid line. By such a moving and holding means 201, the operator can perform the obstacle removal work without holding the large-capacity accumulation means 17b.
[0063]
In the case of the configuration shown in FIG. 8, it is a condition that when the mass storage means 17b moves, it does not interfere with the delay conveyance path 4a. For this reason, the length Tb of the mass storage means 17b is limited.
[0064]
As described above, by providing the movement holding means 201, even when the delay conveyance path 4a is below the stacking means group 19, it is possible to easily perform an operation of removing a failure such as a jam.
[0065]
The base member 106b is installed at an angle closer to the horizontal than the base member 106a. At this time, due to the configuration of the branch conveyance path 4c, the height from the base member 106b to all the stage conveyance paths 4b must be substantially the same. Therefore, the lower part of the large-capacity accumulation means 17b protrudes toward the worker side. In particular, when the length Tb is increased, the protrusion is also increased. Therefore, the operator must move away from the letter sorter 50 and take out the letter 1, which may cause a problem in workability. On the other hand, when the base member 106b is substantially parallel to the base member 106a, the letter 1 may be collapsed or jumped out to the operator side because the accumulated height of the letter 1 is large.
[0066]
Therefore, the pop-up prevention means 113 is provided on the opening surface on the operator side of the large-capacity accumulation means 17b. FIG. 9 shows an example of the configuration of the large-capacity stacking means 17b as viewed from the stage transport path 4b side. The pop-out preventing means 113 includes a stopper plate 114, a hinge 115, and an elastic body 116 such as a spring.
[0067]
The stopper plate 114 covers a range where the letters 1 in the thickness direction of the letters 1 are accumulated by the large-capacity accumulating means 17b, and a part of the stopper plate 114 is released in the conveying direction of the letters 1 so that the operator can grasp the letters 1. The stopper plate 114 is rotatably fixed to the end surface of the frame member 106 on the operator side by a hinge 115, but a force is always applied by the elastic body 116 so as to block the opening surface of the large-capacity accumulation means 17b. .
[0068]
Thereby, the stopper plate 114 is in a position indicated by a solid line, and prevents the letter from collapsing and popping out.
[0069]
On the other hand, when the letter 1 is taken out, the operator grasps the letter 1 from the gap F and pulls it out to the operator side. At this time, the letter 1 pushes the stopper plate 114 open, and the letter 1 can be taken out by moving the stopper plate as indicated by a dotted line.
[0070]
After removal, the stopper plate 114 is moved by the elastic body 116 so as to close the opening surface of the large-capacity accumulation means 17b.
[0071]
By providing such a pop-out preventing means 113, the letter 1 can be stably accumulated even when the base surface 106b and the base surface 106a are substantially parallel.
[0072]
Further, as shown in FIG. 10, a large-capacity accumulating means 17b can be provided in the division stage 18 sandwiched between the stage conveyance paths 4b. In this case, the number of stacking means 17 may be reduced, and the number of types that can be classified may be reduced.
[0073]
On the other hand, many letters can be accumulated even with the same external dimensions as compared with the case where a plurality of accumulation means 17a are assigned to the same classification information. For example, when one large-capacity accumulating means 17b is provided at a place where two accumulating means 17a can be installed, the number of accumulating means 17 is reduced by one. However, the integrated capacity can be increased by the absence of the stage transport path 4b.
[0074]
FIG. 10 shows an example in which a large-capacity accumulation means 17b is provided in a part of the sorting stage 18. In this case, if the large-capacity accumulation means 17b is provided, the lower stage conveyance path 4b cannot be configured. Therefore, when a part of the sorting stage 18 is used as the large capacity accumulating means 17b, it is desirable to provide the accumulating means 17a on the upstream side and the large capacity accumulating means 17b on the downstream side.
[0075]
As described above, by configuring the stacking means 17 of the stacking means group 19 with the stacking means 17 having a plurality of types of capacities, it is possible to reduce the burden required when the operator takes out the stacked letter.
[0076]
【The invention's effect】
By applying the present invention, it is possible to reduce the frequency of taking out the collected letters from the collecting means, and to reduce the burden on the operator.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a letter sorter.
FIG. 2 is a configuration diagram of an accumulation unit.
FIG. 3 is a schematic view of a conventional letter sorter.
FIG. 4 is a configuration diagram of mass storage means.
FIG. 5 is a schematic diagram of a branch conveyance path.
FIG. 6 is a schematic diagram of a letter sorter.
FIG. 7 is a schematic view of a mass storage means provided with a movement holding means.
FIG. 8 is a schematic view of a mass storage means provided with a movement holding means.
FIG. 9 is a schematic view of a large-capacity accumulation unit provided with a jump-out prevention unit.
FIG. 10 is a schematic diagram of a letter sorter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Letter, 2 ... Hopper, 3 ... Supply part, 4 ... Conveyance path, 5 ... Foreign material detection part, 6 ... 1st conveyance gate, 7 ... 1st rejection collection means, 8 ... 1st positioning part, DESCRIPTION OF SYMBOLS 9 ... Reading part, 10 ... Double feed detection part, 11 ... 2nd conveyance gate, 12 ... 2nd rejection collection means, 13 ... 2nd positioning part, 14 ... Printing part, 15 ... Print confirmation part, 16 DESCRIPTION OF SYMBOLS ... Step gate, 17 ... Stacking means, 18 ... Sorting stage, 19 ... Stacking means group, 50 ... Letter sorter, 101 ... Sorting gate, 102 ... Stacking guide, 103 ... Supporting point of stacking guide, 104 ... Bottom plate, 105 ... Bottom plate 106 ... Base member, 107 ... Frame member, 108 ... Conveyance detection means, 109 ... Full detection means, 110 ... Classification display plate, 111 ... Full display means, 112 ... Accumulation restriction means, 113 ... Anti-jumping means, 201: Movement holding means, 203: Latch mechanism.

Claims (3)

For paper sheets having sorting information, a supply unit that sequentially supplies the paper sheets, a conveyance path that conveys the paper sheets supplied by the supply unit, and a paper sheet that is conveyed through the conveyance path A paper sheet classification comprising: a reading unit that reads the sorted classification information; and a stacking means group in which stacking means for stacking paper sheets distributed based on the classification information read by the reading section is arranged in a matrix In the device
The stacking means constituting the stacking means group includes stacking means having a larger outer dimension than other stacking means, and the stacking means having a larger outer dimension includes a base member that forms the back surface of the stacking means. A paper sheet sorting apparatus, wherein the paper sheet sorting apparatus is installed at an angle closer to horizontal than a base member of another stacking means.   2. The paper sheet sorting apparatus according to claim 1, wherein the stacking means having a large outer dimension can be pulled out to an operator side so that the base members are substantially parallel to each other.   3. The paper sheet sorting apparatus according to claim 2, wherein the stacking means having a large outer dimension is configured to be fixed at a drawn position.

Images