Patent Publication Number: US-10789802-B2

Title: Paper sheet processing device and partition card

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates to a paper sheet processing device and a partition card. 
     Priority is claimed on Japanese Patent Application No. 2015-210567, filed Oct. 27, 2015, the content of which is incorporated herein by reference. 
     Description of Related Art 
     There is conventionally known a paper sheet processing device that batch processes at least two groups of paper sheets to be processed, each of which forms a batch processing unit, while classifying them with partition cards. For example, in the paper sheet processing device of Japanese Unexamined Patent Application No. 2007-079695 (hereinafter Patent Document 1), there is installed a color detecting unit constituted by color sensors, with a colored region provided on a partition card. By detecting the colored region of a partition card by the color detecting unit, the partition card is distinguished from a paper sheet to classify each group of paper sheets to be processed. 
     SUMMARY OF THE INVENTION 
     However, in the paper sheet processing device of Patent Document 1, since it is necessary to provide a color detecting unit, there is a risk of a cost increase. 
     An object of the present invention is to provide a paper sheet processing device and partition card that can inhibit a cost increase. 
     A paper sheet processing device according to a first aspect of the present invention includes: a charging inlet that takes in paper sheets in a conveyance direction, the paper sheets including at least one target sheet and a partition card overlapped on the target sheet, the partition card having a main surface portion having at least one identification hole group, the identification hole group having at least two through holes arranged along the conveyance direction; a detection unit that detects take-in of the paper sheets by the charging unit, and detects the identification hole group; and a control unit that determines a paper sheet take-in of which have been detected by the detection unit is the partition card in a case where the identification hole group has been detected by the detection unit, the control unit determining that a paper sheet take-in of which have been detected by the detection unit is the target sheet in a case where the identification hole group has not been detected by the detection unit. 
     A partition card according to a second aspect of the present invention includes: a main surface portion having at least one identification hole group, the identification hole group having at least two through holes arranged along a conveyance direction. The partition card is taken-in in the conveyance direction by a charging inlet of a paper sheet processing device. The identification hole group is detected by a detection unit of the paper sheet processing device. The partition card is identified by a control unit of the paper sheet processing in a case where the identification hole group has been detected by the detection unit of the paper sheet processing device. 
     According to the paper sheet processing device according to the first aspect of the present invention, the charging inlet takes in paper sheets including at least one target sheet and a partition card, the detection unit detects the take-in of the paper sheets by the charging inlet, and detects the identification hole group having at least two through holes provided in the main surface portion of the partition card and arranged along the conveyance direction. The control unit that determines a paper sheet take-in of which have been detected by the detection unit is the partition card in a case where the identification hole group has been detected by the detection unit. The control unit determines that a paper sheet take-in of which have been detected by the detection unit is the target sheet in a case where the identification hole group has not been detected by the detection unit. In this way, the detection unit is made to detect the presence of the identification hole group. Therefore, it is possible to lower the cost of a constitution for identifying the partition sheet and the target sheet. Accordingly, it is possible to simplify and downsize the constitution for identifying the partition card and the target sheet. 
     According to the partition card according to the second aspect of the present invention, the partition card is taken-in in the conveyance direction by the charging inlet of a paper sheet processing device, and the identification hole group is detected by the detection unit of the paper sheet processing device. The partition card is identified by the control unit of the paper sheet processing. In this way, since the detection unit is made to detect the presence of the identification hole group, there is a reduction in the cost of the constitution for identifying bills to be processed. Accordingly, it is possible to hold down a cost increase of the paper sheet processing device. Moreover, it is possible to achieve a simplification and downsizing of the constitution for classifying the partition sheet from a target sheet. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an outline configuration drawing of a paper sheet processing device according to an embodiment of the present invention viewed from the front side. 
         FIG. 2  a perspective view showing paper sheets to be processed by the paper sheet processing device according to the embodiment of the present invention. 
         FIG. 3  is a part plan view showing the paper sheet processing device and a partition card according to the embodiment of the present invention. 
         FIG. 4  is a part plan view showing the paper sheet processing device and the partition card according to the embodiment of the present invention, showing an arrangement state of the partition card to a charging inlet. 
         FIG. 5  is a part plan view showing the paper sheet processing device and the partition card according to the embodiment of the present invention, showing another arrangement state of the partition card to the charging inlet. 
         FIG. 6  is a part plan view showing the paper sheet processing device and the partition card according to the embodiment of the present invention, showing yet another arrangement state of the partition card to the charging inlet. 
         FIG. 7  is a part plan view showing the paper sheet processing device and the partition card according to the embodiment of the present invention, showing still yet another arrangement state of the partition card to the charging inlet. 
         FIG. 8  is a part plan view showing a modification of the paper sheet processing device and the partition card according to the embodiment of the present invention. 
         FIG. 9  is a part plan view showing another modification of the paper sheet processing device and the partition card according to the embodiment of the present invention. 
         FIG. 10  is a part plan view showing yet another modification of the paper sheet processing device and the partition card according to the embodiment of the present invention. 
         FIG. 11  is a part plan view showing still yet another modification of the paper sheet processing device and the partition card according to the embodiment of the present invention. 
         FIG. 12  is a part plan view showing a modification of the charging inlet of the paper sheet processing device according to the embodiment of the present invention. 
         FIG. 13  is a part plan view showing the paper sheet processing device and the partition card according to the embodiment of the present invention, showing a modification of the arrangement state of the partition card to the charging inlet. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     An embodiment of the present invention is described below with reference to the drawings. A paper sheet processing device  11  according to the present embodiment shown in  FIG. 1  performs predetermined processing of paper sheets S that are charged thereto. Specifically, the paper sheet processing device  11  performs identification processing on bills S (a) to be processed (target sheets) shown in  FIG. 2  as the processing target. The bills S (a) to be processed are paper sheets S. The paper sheet processing device  1  identifies the bills S (a) to be processed and counts by denomination to calculate the total monetary amount. 
     As shown in  FIG. 2 , the paper sheet processing device  11  shown in  FIG. 1  processes a plurality of sections B (a) in succession. Each of the sections B (a) includes a plurality of bills S (a) to be processed that are continuously accumulated in the thickness direction and bundled. In doing so, there is used a partition card S (b) for judging the boundary of each section B (a), in other words, for classifying each section B (a). The partition card S (b) is a paper sheet S. 
     Here, each section B (a) includes bills S (a) to be processed that are bundled for each batch processing unit. The section B (a) often includes a plurality of the bills S (a) to be processed that have been continuously accumulated in the thickness direction and bundled as described above. However, the section B (a) may include only one bill S (a) to be processed. 
     As shown in  FIG. 2 , a partition card S (b) is used for determining the boundary between one section B (a) that includes a plurality of the bills S (a) to be processed of a batch processing unit and another section B (a) that includes a plurality of the bills S (a) to be processed of a batch processing unit. A partition card S (b) is also used for determining the boundary between one section B (a) that includes a single bill S (a) to be processed of a batch processing unit and another section B (a) that includes a single bill S (a) to be processed of a batch processing unit. Furthermore, a partition card S (b) is also used for determining the boundary between one section B (a) that includes a single bill S (a) to be processed of one batch processing unit and another section B (a) that includes a plurality of the bills S (a) to be processed of a batch processing unit. Thereby, at least two paper sheet groups U, each constituted by at least one bill S (a) to be processed and a partition card S (b) that is arranged overlapping this at least one bill S (a) to be processed, can be set together in the paper sheet processing device  11 . The paper sheet processing device  11  is capable of continuously processing these at least two paper sheet groups G. 
     As shown in  FIG. 1 , the paper sheet processing device  11  includes a charging inlet  12 , a reject unit  13 , and a plurality of (specifically,  12 ) accumulation units  14 . The charging inlet  12  is provided at the lower portion of the right-side surface and opens to the right side. The reject unit  13  is provided in the middle portion in the vertical direction of the same right-side surface and opens to only the right side or both the right side and front. The plurality of accumulation units  14  are arranged to the left of the charging inlet  12  and the reject unit  13  and open to the front surface of the device. 
     The paper sheets S are set in the charging inlet  12  in the state of being accumulated in the vertical direction (that is, the charging inlet  12  receives the paper sheets S accumulated in the vertical direction), and the charging inlet  12  separates and feeds the set paper sheets S one at a time from the lowest one, whereby the paper sheets S are taken into the paper sheet processing device  11 . The paper sheet processing device  11  includes, in the inside, a conveying unit  21  and an identifying unit  22  that are provided in the inside thereof. The conveying unit  21  conveys the paper sheets S that have been taken in from the charging inlet  12 . The identifying unit  22  identifies the paper sheets S being conveyed by the conveying unit  21  and counts the bills S (a) to be processed among the paper sheets S while identifying the denominations thereof. 
     The portion of the conveying unit  21  on the downstream side of the identifying unit  22  selectively sorts the paper sheets to the reject unit  13  and the plurality of accumulation units  14  on the basis of the identification result of the identifying unit  22 . The conveying unit  21  includes a conveyance path  25  and a plurality of sorting units  26 . The conveyance path  25  is arranged separated in an appropriate manner so as to link each unit, and conveys the paper sheets S. The sorting units  26  are provided at each branch position of the conveyance path  25  and sort the paper sheets S. 
     Among the bills S (a) to be processed taken into the paper sheet processing device  11  by the charging inlet  12 , the reject unit  13  excludes in a manner removable from the paper sheet processing device  11  the paper sheets S including bills S (a) to be rejected that have been identified as being other than authentic bills by the identifying unit  22 . The reject unit  13  accumulates from bottom to top the paper sheets S fed out from the conveying unit  21  in the order they are fed out (in other words, in the take-in order of the charging inlet  12 ). 
     Among the bills S (a) to be processed taken into the paper sheet processing device  11  by the charging inlet  12 , the plurality of accumulation units  14  accumulate in a manner removable from the paper sheet processing device  11  the authentic bills S (a) to be processed that have been identified as authentic by the identifying unit  22 . Each of the plurality of accumulation units  14  accumulates from bottom to top the bills S (a) to be processed fed out from the conveying unit  21  in the order they are fed out (in other words, in the take-in order of the charging inlet  12 ). 
     The paper sheet processing device  11  includes an operation display unit  31  provided on the front surface of the paper sheet processing device  11 . The operation display unit  31  accepts operation inputs and displays information. The paper sheet processing device  11  includes a control unit  32  and a storage unit  33  provided inside of the paper sheet processing device  11 . The control unit  32  controls each unit. The storage unit  33  stores master data that serves as the basis of identification, data of the results of identification, and the like. 
     The charging inlet  12 , as described above, is provided on the right-side surface of the paper sheet processing device  11  so as to open to the right side. The charging inlet  12  includes a bottom portion  40 , a wall portion  41 , a wall portion  42 , and a wall portion  43 . The bottom portion  40  slopes slightly downward to the left with respect to horizontal. The wall portion  41  extends perpendicularly to the bottom portion  40  from the back side position of the bottom portion  40 . The wall portion  42  shown in  FIG. 3  extends perpendicularly to the bottom portion  40  from one end edge portion of the bottom portion  40  in the width direction. The wall portion  43  extends perpendicularly to the bottom portion  40  from the other end edge portion of the bottom portion  40  in the width direction. The wall portion  42  and the wall portion  43  are arranged in parallel. The wall portion  41  is arranged perpendicularly to the wall portions  42  and  43 . The wall portion  42  is arranged on the front side of the paper sheet processing device  11 , and the wall portion  42  is arranged on the rear side of the paper sheet processing device  11 . In the charging inlet  12 , the paper sheets S are arranged on the bottom portion  40  and between the wall portions  42  and  43  as shown in  FIG. 4 , and placed so as to abut at least the wall portion  41 . 
     In the charging inlet  12 , the rectangular-shaped paper sheets S are set so that the long side follows the wall portion  41 , and the short sides follow the wall portions  42  and  43 . In other words, the paper sheet S is set in the charging inlet  12  so that the longitudinal direction (long-side direction) thereof matches the direction that joins the wall portions  42  and  43 , which is the longitudinal direction (width direction) of the charging inlet  12 , and the transverse direction (short-side direction) thereof becomes perpendicular to the wall portion  41 . 
     The charging inlet  12  has a length between the walls  42  and  43  that is nearly the same length as the longest of the bills S (a) to be processed shown in  FIG. 2 , and slightly longer than the longest length of the bills S (a) to be processed. As shown in  FIG. 1 , the charging inlet  12  includes a bill press  45  that is provided above the bottom portion  40  and that moves up and down along the wall portion  41 . The bill press  45  presses the paper sheets S placed on the bottom portion  40  toward the bottom portion  40 . 
     The charging inlet  12  includes an ejection roller  51 , a take-in roller  52 , and a separation roller  53 . The ejection roller  51  ejects the bottommost paper sheet S among the paper sheets S set on the bottom portion  40  toward the conveying unit  21 . The take-in roller  52  that takes into the paper sheet processing device  11  the paper sheet S ejected by the ejection roller  51  and delivers it to the conveying unit  21 . The separation roller  53  separates one by one the paper sheets S taken in by the take-in roller  52 . The charging inlet  12  takes into the paper sheet processing device  11  the paper sheet group G shown in  FIG. 2 . The paper sheet group G includes at least one bill S (a) to be processed and the partition card S (b) arranged overlapping the at least one bill S (a) to be processed. 
     Since the charging inlet  12  is provided on the right-side surface of the abovementioned paper sheet processing device  11  so as to open to the right side, the width direction of the charging inlet  12  matches the fore-aft direction of the paper sheet processing device  11 . As shown in  FIG. 3 , the take-in roller  52  is provided in the approximate central portion of the charging inlet  12  in the width direction of the charging inlet  12 . The separation roller  53 , shown in  FIG. 1 , has the circumferential surface that makes contact with the circumferential surface of the take-in roller  52 , and is also provided in the approximate central portion of the charging inlet  12  in the width direction of the charging inlet  12 . 
     As shown in  FIG. 3 , the paper sheet processing device  11  includes a take-in sensor  55  (detection unit) that is disposed at a position near the charging inlet  12 . The take-in sensor  55  detects the taking-in of a paper sheet S. The take-in sensor  55  is provided further on the deep side (downstream side) than the charging inlet  12  in the conveying direction perpendicular to the width direction of the charging inlet  12 , and provided at a position at which a paper sheet S moving along the conveyance path  25  shown in  FIG. 1  passes. As shown in  FIG. 3 , the take-in sensor  55  is disposed at a position that is displaced by a predetermined distance in the width direction of the charging inlet  12 , with respect to the central portion of the charging inlet  12  in the width direction, in order to avoid interference with the take-in roller  52 . Specifically, the take-in sensor  55  is disposed in a manner shifted by a predetermined distance to the wall portion  43  side in this width direction from the central portion of the charging inlet  12  in the width direction. 
     The take-in sensor  55  is a transmission optical sensor that has a light emitting element and a light receiving element disposed so as to allow a paper sheet S taken in from the charging inlet  12  to pass between these elements. The take-in sensor  55  detects that there is no paper sheet S at the position of the take-in sensor  55  when in a light-transmission state in which the light receiving element receives light emitted from the light emitting element. The take-in sensor  55  detects that there is a paper sheet S at the position of the take-in sensor  55  when in a light-shielded state in which the light receiving element does not receive light emitted from the light emitting element. The take-in sensor  55  is provided at a position at which it can detect the partition card S (b) and bills S (a) to be processed of all denominations that are disposed between the wall portions  42  and  43  and are taken in. Therefore, the take-in sensor  55  detects the taking-in of the paper sheet group G from the charging inlet  12 . 
     The partition card S (b) has a rectangular shape, with the length in the longitudinal direction being equivalent to the longest length of the bills S (a) to be processed, and slightly shorter than the length between the wall portions  42  and  43 . Thereby, the partition card S (b) has an equivalent length to that of the bills S (a) to be processed, or a slightly longer length than that of the bills S (a). The partition card S (b) is set in the charging inlet  12  so that the long side of the partition card S (b) follows the wall portion  41 , and the short sides of the partition card S (b) follow the wall portions  42  and  43 . Moreover, the partition card S (b) is set in the charging inlet  12  so as to abut the wall portion  41  and the wall portion  43 . The charging inlet  12  conveys the partition card S (b) and the bills S (a) to be processed, which are both paper sheets S, along the transverse direction of each to the wall portion  41 , and takes them into the interior of the paper sheet processing device  11 . The conveying unit  21  also conveys the partition card S (b) and the bills S (a) to be processed along the transverse direction of each. 
     The partition card S (b) has a main surface portion  61  having the widest surface area. The main surface portion  61  has four identification hole groups  62   a ,  62   b ,  62   c ,  62   d  that are formed therein. Here, the longitudinal direction of the main surface portion  61  matches the longitudinal direction of the partition card S (b), and the length of the main surface portion  61  in the longitudinal direction matches the length of the partition card S (b) in the longitudinal direction. The transverse direction of the main surface portion  61  matches the transverse direction of the partition card S (b), and the length of the main surface portion  61  in the transverse direction matches the length of the partition card S (b) in the transverse direction. 
     The identification hole groups  62   a  to  62   d  all have the same shape, and all are constituted by two through holes  63  provided aligned in the transverse direction of the main surface portion  61 . Since the partition card S (b) is conveyed so as to move along the transverse direction thereof, the two through holes  63  provided aligned in the transverse direction of the partition card S (b) can also be said to be aligned in the conveyance direction. All of the through holes  63  penetrate the partition card S (b) from the main surface portion  61  to a main surface portion  64  shown in  FIG. 6  on the reverse side, and thus the identification hole groups  62   a  to  62   d  are also formed in the main surface portion  64 . 
     As shown in  FIG. 3 , the eight through holes  63  that constitute all of the identification hole groups  62   a  to  62   d  all have the same rectangular shape, and specifically an long rectangular shape, and the longitudinal direction of all of the through holes  63  matches the longitudinal direction of the main surface portion  61 . In addition, the positions of the two through holes  63  that constitute the same identification hole group mutually match in the longitudinal direction of the main surface portion  61 . The interval in the transverse direction of the main surface portion  61  between the two through holes  63  that constitute each of the identification hole groups  62   a  to  62   d  is a predetermined uniform interval. 
     The first identification hole group  62   a  is formed displaced to one side from the central portion in the longitudinal direction of the main surface portion  61  and displaced to one side from the central portion in the transverse direction. The second identification hole group  62   b  is formed displaced to the other side from the central portion in the longitudinal direction of the main surface portion  61  and displaced to the other side from the central portion in the transverse direction. The third identification hole group  62   c  is formed displaced to the other side from the central portion in the longitudinal direction of the main surface portion  61  and displaced to the one side from the central portion in the transverse direction. The fourth identification hole group  62   d  is formed displaced to the one side from the central portion in the longitudinal direction of the main surface portion  61  and displaced to the other side from the central portion in the transverse direction. That is, with respect to the conveyance direction of the main surface portion  61  of the partition card S (b) by the conveying portion  21  (hereinbelow called the conveyance direction), the identification hole groups  62   a  to  62   d  are formed at positions displaced from the central portion of the main surface portion  61  of the partition card S (b) in a first direction orthogonal to the conveyance direction (hereinbelow called the conveyance orthogonal direction). Also, of the identification hole groups  62   a  to  62   d , the two identification hole groups  62   a  and  62   d  are formed at one side in the conveyance orthogonal direction (longitudinal direction) of the main surface portion  61  of the partition card S (b), while the two identification hole groups  62   b  and  62   c  are formed at the other side in the longitudinal direction. 
     The identification hole groups  62   a  and  62   c  are arranged side by side in the longitudinal direction of the main surface portion  61 , with their positions in the transverse direction matched with each other. The identification hole groups  62   b  and  62   d  are arranged side by side in the longitudinal direction of the main surface portion  61 , with their positions in the transverse direction being matched with each other. The identification hole groups  62   a  and  62   d  are arranged side by side in the transverse direction of the main surface portion  61 , with their positions in the longitudinal direction being matched with each other. The identification hole groups  62   b  and  62   c  are arranged side by side in the transverse direction of the main surface portion  61 , with their positions in the longitudinal direction being matched with each other. 
     The distance L 1  between each of these identification hole groups  62   a  to  62   d  and the closest short side of the main surface portion  61  is the same for all of the identification hole groups  62   a  to  62   d . The length L 2  between each of these identification hole groups  62   a  to  62   d  and the closest long side of the main surface portion  61  is the same for all of the identification hole groups  62   a  to  62   d.    
     From the above, the identification hole groups  62   a  and  62   d  (the centers of the identification hole groups  62   a  and  62   d ) are arranged in the main surface portion  61  at positions shifted from their near-side short side (the right-side short side in  FIG. 3 ) toward their far-side short side (the left-side short side in  FIG. 3 ) by the predetermined distance L 1 . The identification hole groups  62   b  and  62   c  (the centers of the identification hole groups  62   b  and  62   c ) are arranged in the main surface portion  61  at positions shifted from their near-side short side (the left-side short side in  FIG. 3 ) toward their far-side short side (the right-side short side in  FIG. 3 ) by the same predetermined distance L 1  as the distance between the identification hole groups  62   a  and  62   d  and their near-side short side. 
     The identification hole groups  62   a  and  62   c  (the centers of the identification hole groups  62   a  and  62   c ) are arranged in the main surface portion  61  at positions shifted from their near-side long side (the upper-side long side in  FIG. 3 ) toward their far-side long side (the bottom-side long side in  FIG. 3 ) by the predetermined distance L 2 . The identification hole groups  62   b  and  62   d  (the centers of the identification hole groups  62   b  and  62   d ) are arranged in the main surface portion  61  at positions shifted from their near-side long side (the lower-side long side in  FIG. 3 ) toward their far-side long side (the upper-side long side in  FIG. 3 ) by the same predetermined distance L 2  as the distance between the identification hole groups  62   a  and  62   c  and their near-side long side. 
     The identification hole groups  62   a  and  62   d  at the one side in the longitudinal direction of the main surface portion  61  and the identification hole groups  62   c  and  62   b  at the other side are symmetrical with respect to the central portion in the longitudinal direction of the main surface portion  61 . The identification hole groups  62   a  and  62   c  at the one side in the transverse direction and the identification hole groups  62   c  and  62   b  at the other side in the transverse direction of the main surface portion  61  are symmetrical with respect to the central portion in the transverse direction of the main surface portion  61 . 
     The length in the longitudinal direction between the identification hole groups  62   a  to  62   d  and the short side of the main surface portion  61  that is closest to each is the same length as the length in the width direction of the charging inlet  12  between the take-in sensor  55  and the wall portion  43 . The wall portion  43  is the end portion in the width direction of the charging inlet  12  on the side near the take-in sensor  55 . The length in this conveyance orthogonal direction between: the identification hole groups  62   a  and  62   d  at the one side in the conveyance orthogonal direction; and the end of the main surface portion  61  on the side near the identification hole groups  62   a  and  62   d  in this conveyance orthogonal direction, is the same length as the length in the width direction between the take-in sensor  55  and the wall portion  43 , which is the end of the charging inlet  12  on the side near the take-in sensor  55  in the width direction. The conveyance orthogonal direction is the longitudinal direction of the main surface portion  61 . Similarly, the length in this conveyance orthogonal direction between: the identification hole groups  62   b  and  62   c  at the other side in the conveyance orthogonal direction; and the end of the main surface portion  61  on the side near the identification hole groups  62   b  and  62   c  in this conveyance orthogonal direction, is the same length as the length in the width direction between the take-in sensor  55  and the wall portion  43 , which is the end in the width direction of the charging inlet  12  on the side near the take-in sensor  55 . 
     With the above configuration, when the partition card S (b) is taken in from the charging inlet  12 , the take-in sensor  55  enters the light-shielded state by the portion other than the identification hole groups  62   a  to  62   d  of the partition card S (b), and enters the light-transmission state by the two through holes  63  at two respective locations whose positions in the longitudinal direction of the partition card S (b) match the take-in sensor  55 , among the identification hole groups  62   a  to  62   d . That is, the take-in sensor  55  detects the presence of the paper sheet S that constitutes the paper sheet group G and the presence of the identification hole groups  62   a  to  62   d  in the paper sheet S by light transmission and light shielding. 
     Here, in the case of the paper sheet S being taken in from the state of being set between the wall portions  42  and  43  of the charging inlet  12 , the control unit  32  identifies whether the paper sheet S is a partition card S (b) or a bill S (a) to be processed by whether the take-in sensor  55  has detected one of the identification hole groups  62   a  to  62   d  by light transmission within a predetermined monitoring time after the start of detection of the paper sheet S by the light shielding. Here, the abovementioned monitoring time is a value obtained by dividing a predetermined distance by the take-in conveyance speed of the charging inlet  12 . The predetermined distance may be longer than the maximum distance between the long side of the partition card S (b) on the side near the identification hole group  62   a  and the through hole  63  of the identification hole group  62   a  on the far side from this long side, and shorter than the minimum distance between this long side and the through hole  63  of the identification hole group  62   d  on the side near this long side. 
     For example,  FIG. 4  shows a case where the partition card S (b) is arranged in the charging inlet  12  with the main surface portion  61  facing upward in the vertical direction and the identification hole groups  62   a  and  62   c  being oriented closer to the wall portion  41  than the identification hole groups  62   b  and  62   d . In this case, the take-in sensor  55 , after the start of detection of this partition card S (b) by the light shielding, detects the identification hole group  62   a  near the wall portion  41  and near the wall portion  43  by the two light transmissions that occur within the monitoring time. 
       FIG. 5  shows a case where the partition card S (b) is arranged in the charging inlet  12  with the main surface portion  61  facing upward in the vertical direction and the identification hole groups  62   b  and  62   d  being oriented closer to the wall portion  41  than the identification hole groups  62   a  and  62   c . In this case, the take-in sensor  55 , after the start of detection of this partition card S (b) by the light shielding, detects the identification hole group  62   b  near the wall portion  41  and near the wall portion  43  by the two light transmissions that occur within the monitoring time. 
       FIG. 6  shows a case where the partition card S (b) is arranged in the charging inlet  12  with the main surface portion  64  facing upward in the vertical direction and the identification hole groups  62   a  and  62   c  being oriented closer to the wall portion  41  than the identification hole groups  62   b  and  62   d . In this case, the take-in sensor  55 , after the start of detection of this partition card S (b) by the light shielding, detects the identification hole group  62   c  near the wall portion  41  and near the wall portion  43  by the two light transmissions that occur within the monitoring time. 
       FIG. 7  shows a case where the partition card S (b) is arranged in the charging inlet  12  with the main surface portion  64  facing upward in the vertical direction and the identification hole groups  62   b  and  62   d  being oriented closer to the wall portion  41  than the identification hole groups  62   a  and  62   c . In this case, the take-in sensor  55 , after the start of detection of this partition card S (b) by the light shielding, detects the identification hole group  62   d  near the wall portion  41  and near the wall portion  43  by the two light transmissions that occur within the monitoring time. 
     When the detection state of the take-in sensor  55  changes from the light-transmission state to the light-shielded state in a time interval that is equal to or more than a predetermined time corresponding to the shortest take-in interval between the paper sheets  5 , the control unit  32  detects the start of take-in of a paper sheet S. When a state change having the pattern of light transmission, light shielding, light transmission, and light shielding occurs within the observation time after this paper sheet S take-in start detection, the control unit  32  identifies this paper sheet S as a partition card S (b). When the state change having the pattern of light transmission, light shielding, light transmission, and light shielding does not occur within the observation time after the paper sheet S take-in start detection, the control unit  32  identifies this paper sheet S as a bill S (a) to be processed. That is, the control unit  32  determines that a paper sheet S whose take-in from the charging inlet  12  has been detected by the take-in sensor  55  and in which one of the identification hole groups  62   a  to  62   d  has been detected by the take-in sensor  55  is the partition card S (b). By contrast, the control unit  32  determines that a paper sheet S whose take-in from the charging inlet  12  has been detected by the take-in sensor  55  and in which any one of the identification hole groups  62   a  to  62   d  has not been detected by the take-in sensor  55  is a bill S (a) to be processed. 
     The control unit  32  sorts the plurality of paper sheet groups G set in the charging inlet  12  one by one, and distributes each section B (a) into any one of the plurality of accumulation units  14 . Also, the control unit  32  classifies each paper sheet group G into partition cards S (b) and bills S (a) to be processed, conveying the partition cards S (b) to the reject unit  13  and the bill S (a) to be processed to the respective accumulation units  14 . 
     As shown in  FIG. 3 , the main surface portion  61  has an identification display portion  71  printed thereon. The identification display portion  71  is provided at the central position of the main surface portion  61 , in the transverse direction between the identification hole groups  62   a  and  62   c  and the identification hole groups  62   b  and  62   d . The identification display portion  71  may be used for distinguishing the partition card S (b) from others, and may be a barcode that shows identification information such as numerical values and characters. In other words, since the identification display portion  71  is formed in the central portion of the main surface portion  61  in the transverse direction, the identification hole groups  62   a  to  62   d  are formed at positions shifted from the central portion in the transverse direction of the main surface portion  61 . Here, the identification hole groups  62   a  to  62   d  are arranged so that their positions overlap with the identification display portion  71  in the longitudinal direction of the main surface portion  61 . In one partition card S (b), the same thing as the identification display portion  71  printed on the main surface portion  61  is also printed on the main surface portion  64  shown in  FIG. 6 , at the central position in the transverse direction between the identification hole groups  62   a  and  62   c  and the identification hole groups  62   b  and  62   d . That is, one partition card S (b) has the same identification display portions  71  on both main surface portions  61  and  64 . 
     As shown in  FIG. 3 , in the partition card S (b), the portion between the identification hole groups  62   a  and  62   d  and the identification hole groups  62   b  and  62   c  makes contact with the take-in roller  52  and the separation roller  53  while passing between them (the two-dot chain lines in  FIG. 3  show the passage range of the take-in roller  52  and the separation roller  53 ). In other words, the identification hole groups  62   b  to  62   d  are formed at positions shifted from the central portion of the main surface portions  61  and  64  in the longitudinal direction because the take-in roller  52  and the separation roller  53  pass the central portion of the main surface portions  61  and  64  in the longitudinal direction. 
     In the paper sheet processing device  11  according to the present embodiment, one paper sheet group G includes a partition card S (b) and a section B (a). The partition card S (b) is arranged at only the position just before the front side of the section B (a) in the accumulation direction (the lower side in the set state in the charging inlet  12 ), which is one of both outer sides of each section B (a) in accumulation direction (thickness direction) thereof, and is used for identifying the section B (a) positioned immediately afterward. That is, each partition card S (b) is used as a start card for identifying each start end of each section B (a). An embodiment is not limited thereto, and the partition card S (b) may serve as an end card for identifying the finish end of the section B (a) positioned immediately before and arranged at only the position just after the back side of each section B (a) in the accumulation direction (the upper side in the set state in the charging inlet  12 ). Alternatively, two partition cards S (b) may be serves as a start card and an end card for identifying the start end and finish end of the section B (a) and arranged at both front and rear sides of the section B (a) in the accumulation direction. 
     In the paper sheet processing device  11 , to proceed the process of identifying each section B (a), according to an operation input to the operation display unit  31  by the operator, a setting process is performed in which the control unit  32  stores in the storage unit  33  the one-to-one correspondence relation between each section  13  ( a ) and the identification display portion  71  of the partition card S (b). Then, the operator sets the partition card S (b) having the identification display portion  71  and the corresponding section B (a) in the charging inlet  12  in a state where the partition card S (b) is arranged on the front side of the corresponding section  13  ( a ) in the direction of accumulation by the charging inlet  12 . When a plurality of the sections B (a) are processed at one time, the partition cards S (b) with a one-to-one correspondence are arranged on the front side of each of the plurality of sections B (a) in the accumulation direction by the charging inlet  12 , and set in the charging inlet  12 . 
     When the operation instruction input for the start of processing is inputted to the operation display unit  31 , the control unit  32  drives the ejection roller  51  and the take-in roller  52  of the charging inlet  12  in the direction of taking in the paper sheets S in the charging inlet  12  and paying them out toward the conveying unit  21 , and drives the conveying unit  21 . Upon doing so, the lowest paper sheet S is ejected by the ejection roller  51  toward the take-in roller  52 . The paper sheets S are separated one at a time by the take-in roller  52  and the separation roller  53 , taken in to the conveying unit  21 , and conveyed by the conveying unit  21 . The paper sheets S taken in by the charging inlet  12  are first detected by the take-in sensor  55  prior to being delivered to the conveying unit  21 . Then, the control unit  32  identifies a paper sheet S as the partition card S (b) in a case where the take-in sensor  55  has detected take-in of the paper sheet S from the charging inlet  12  by detection of light shielding and it has detected one of the identification hole groups  62   a  to  62   d  by detection of two light transmissions within the monitoring time after this take-in detection start. 
     The control unit  32  identifies a paper sheet S as the bill S (a) to be processed in a case where the take-in sensor  55  has detected take-in of the paper sheet S from the charging inlet  12  by detection of light shielding and it has not detected any of the identification hole groups  62   a  to  62   d  because the two light transmissions have not occurred within the monitoring time after this take-in detection start. 
     Hereinbelow, a description will be given for distinguishing two different partition cards S (b) as a first partition card S (b) and a second partition card S (b), and similarly distinguishing other constitutions as well. 
     In the charging inlet  12 , a second paper sheet group G that is constituted by a second partition card S (b) and a second section  13  ( a ) is arranged overlapping a first paper sheet group G that is constituted by a first partition card S (b) and a first section B (a). The first partition card S (b) and the second partition card S (b) are arranged abutting the wall portion  41  and the wall portion  43  of the charging inlet  12 . When the first and second paper sheet groups S are conveyed by the conveying unit  21 , the first identification display portion  71  of the first partition card S (b) is read out by the identification unit  22 . After being read by the identification unit  22 , the control unit  32  conveys the first partition card S (b) by the conveying unit  21  and the sorting units  26  to the reject unit  13 . 
     Then, the bills S (a) to be processed that are conveyed following this first partition card S (b) are identified by the identification unit  22  as bills S (a) to be processed constituting the first section B (a) corresponding to the first identification information expressed by the first identification display portion  71  of the first partition card S (b) and counted. Among the bills S (a) to be processed constituting the first section B (a), the control unit  32  causes authentic bills S (a) to be processed that have been identified as authentic bills from the identification result of the identification unit  22  to be accumulated in a first accumulation unit  14  corresponding to this first section B (a) by the conveying unit  21  and the sorting units  26 , and conveys the reject bills S (a) to be processed that have been identified as other than authentic bills to the reject unit  13  by the conveying unit  21  and the sorting units  26 . 
     When the take-in sensor  55  detects the second partition card S (b) following the first partition card S (b), the control unit  32  stops the ejection roller  51  and the take-in roller  52 , and suspends the taking-in of paper sheets constituting the paper sheet group G by the charging inlet  12 . At this time, the second partition card S (b), which is a paper sheet S, stops between the take-in roller  52  and the separation roller  53 . The control unit  32  continues identification by the identification unit  22  of the bills S (a) to be processed constituting the first section B (a), conveyance to the first accumulation unit  14  of the authentic bills S (a) to be processed, and conveyance to the reject unit  13  of the reject bills S (a) to be processed without stopping the conveying unit  21  during the take-in suspension. 
     Upon determining that all of the bills S (a) to be processed constituting the first section B (a) have been conveyed to either the first accumulation unit  14  or the reject unit  13 , and that there no more bills S (a) to be processed on the conveying unit  21 , the control unit  32  determines that the processing of the first paper sheet group G including the first partition card S (b) and the first section B (a) is finished. Then, the control unit  32  again drives the ejection roller  51  and the take-in roller  52  to deliver to the conveying unit  21  the second partition card S (b) of the second paper sheet group G, which was stopped for a while. Then, the second partition card S (b) is conveyed by the conveying unit  21 , and the second identification display portion  71  thereof is read by the identification unit  22 . The control unit  32  causes the second partition card S (b), after being read by the identification unit  22 , to be conveyed to the reject unit  13  by the conveying unit  21  and the sorting units  26 . 
     Then, the bills S (a) to be processed that are conveyed following this second partition card S (b) are identified by the identification unit  22  as bills S (a) to be processed constituting the second section B (a) corresponding to the second identification information expressed by the second identification display portion  71  of the second partition card S (b) and counted. Among the bills S (a) to be processed constituting the second section B (a), the control unit  32  causes the authentic bills S (a) to be processed that have been identified as authentic bills from the identification result of the identification unit  22  to be accumulated in the second accumulation unit  14  corresponding to this second section B (a) by the conveying unit  21  and the sorting units  26 , and conveys the reject bills S (a) to be processed that have been identified as other than authentic bills to the reject unit  13  by the conveying unit  21  and the sorting units  26 . 
     In this way, the control unit  32  classifies the first paper sheet group G that includes the first partition card S (b) and the second paper sheet group G that includes the second partition card S (b). 
     By appropriately repeating the above process, when the control unit  32  detects the absence of paper sheets S in the charging inlet  12  by the light-transmission state of the take-in sensor  55  continuing for a predetermined time, the control unit  32  displays in the operation display unit  31 , in association with the identification of each accumulation unit  14 , for example the total monetary value on the basis of the identification of the authentic bills S (a) to be processed of the section B (a) accumulated in each accumulation unit  14  and the aggregated total of counting. 
     According to the abovementioned paper sheet processing device  11 , when the charging inlet  12  takes in the paper sheet group G having at least one bill S (a) to be processed and a partition card S (b), the take-in sensor  55  detects the take-in of the paper sheet group G from the charging inlet  12  and also detects one of the identification hole groups  62   a  to  62   d  each constituted by at least two through holes  63  provided in the main surface portions  61  and  64  of the partition card S (b) and arranged along the conveying direction. The control unit  32  determines that the paper sheet S whose take-in was detected by the take-in sensor  55  and in which the take-in sensor  55  has detected one of the identification hole groups  62   a  to  62   d  is the partition card S (b). The control unit  32  determines that the paper sheet S whose take-in was detected by the take-in sensor  55  and in which the take-in sensor  55  has detected none of the identification hole groups  62   a  to  62   d  is the bill S (a) to be processed. In this manner, the control unit  32  classifies the paper sheet groups G. Since the take-in sensor  55  is only required to detect the presence of one of the identification hole groups  62   a  to  62   d  constituted by at least two through holes  63  provided in the main surface portions  61  and  64  of the partition card S (b) and arranged along the conveying direction, there is an advantage in that a reduction in the cost of the constitution for identifying the partition card S (b) and the bill S (a) to be processed can be achieved. Accordingly, it is possible to inhibit a cost increase. Moreover, it is possible to simplify and downsize the constitution for identifying the partition card S (b) and the bill S (a) to be processed. 
     Also, according to the paper sheet processing device  11 , the identification hole groups  62   a  and  62   d  are formed at positions displaced from the central portion of the main surface portions  61  and  64  of the partition card S (b) in a conveyance orthogonal direction orthogonal to the conveyance direction thereof. The take-in sensor  55  is arranged at a position displaced in the width direction of the charging inlet  12  with respect to the central portion in this width direction. The length in the conveyance orthogonal direction between the identification hole groups  62   a  and  62   d  and the end of the main surface portions  61  and  64  of the partition card S (b) at the side near the identification hole groups  62   a  and  62   d  is the same length as the length in the width direction of the charging inlet  12  between the take-in sensor  55  and the end of the charging inlet  12  at the side near the identification hole groups  62   a  and  62   d  in the width direction of the charging inlet  12 . The length in the conveyance orthogonal direction between the identification hole groups  62   b  and  62   c  and the end of the main surface portions  61  and  64  of the partition card S (b) at the side near the identification hole groups  62   b  and  62   c  in the conveyance orthogonal direction is the same length as the length in the width direction of the charging inlet  12  between the take-in sensor  55  and the end of the charging inlet  12  at the side near the identification hole groups  62   b  and  62   c  in the width direction of the charging inlet  12 . Accordingly, it is possible to favorably detect one of the identification hole groups  62   a  to  62   d  by the take-in sensor  55 . 
     Also, according to the paper sheet processing device  11 , the two identification hole groups  62   a  and  62   d  are formed at one side of the partition card S (b) in the conveyance orthogonal direction and the two identification hole groups  62   b  and  62   c  are formed at the other side of the partition card S (b) in the conveyance orthogonal direction. The length in the conveyance orthogonal direction between the identification hole groups  62   a  and  62   d  at the one side in the conveyance orthogonal direction and the one end of the main surface portions  61  and  64  of the partition card S (b) at the side near the identification hole groups  62   a  and  62   d  in the conveyance orthogonal direction, and the length in the conveyance orthogonal direction between the identification hole groups  62   b  and  62   c  at the other side in the conveyance orthogonal direction and the other end of the main surface portions  61  and  64  of the partition card S (b) at the side near the identification hole groups  62   b  and  62   c  in the conveyance orthogonal direction are the same length as the length in the width direction of the charging inlet  12  between the take-in sensor  55  and the end of the charging inlet  12  in this width direction. Accordingly, it is possible to detect one of the identification hole groups  62   a  to  62   d  by the take-in sensor  55  regardless of the orientation (front/back and top/bottom) of the charging of the partition card S (b). Therefore, there is no need to arrange the orientation of the partition card S (b) for charging, and so workability is good. 
     Also, according to the paper sheet processing device  11 , when the control unit  32  determines that a paper sheet S is the partition sheet S (b) by its taking-in and one of the identification hole groups  62   a  to  62   d  being detected by the take-in sensor  55 , the control unit  32  suspends the taking-in of the paper sheet group G on the basis of this determination. Therefore, it is possible to create a take-in interval between bills S (a) to be processed before and after the partition card S (b), that is, between bills S (a) to be processed with different classifications. Thereby, during a paper jam or the like, it is possible to favorably and easily separate the bills S (a) to be processed with different classifications. Moreover, since the pick-up sensor  55  is disposed near the charging inlet  12 , when a paper sheet S is determined to be the partition card S (b) and the take-in of the paper sheet group G is suspended, it is possible to have the paper sheets S on the downstream side of the partition card S (b) remain in the charging inlet  12 . Thereby, it is possible to inhibit mixing together of the bills S (a) to be processed of different classifications within the paper sheet processing device  11 . 
     That is, when classifying each paper sheet group G by identifying the partition card S (b) and the bills S (a) to be processed thereof with the identification unit  22  built into the paper sheet processing device  11 , in the event of for example a stoppage of the paper sheet processing device  11  due to a paper jam or the like, even if control is performed so as to suspend the taking-in of the bills S (a) to be processed of the next section B (a) until the processing of the prior section B (a) finishes so that bills S (a) to be processed of different sections B (a) are not mixed together, since they are identified as the partition card S (b) or the bills S (a) to be processed by the identification unit  22 , some bills S (a) to be processed of the next section B (a) may in reality end up being present on the conveyance path  25  between the charging inlet  12  and the identification unit  22 . Thereby, there is a risk of bills S (a) to be processed of a plurality of different sections B (a) being mixed together. In contrast, since it is possible to classify each paper sheet group G by identifying the partition card S (b) and the bills S (a) to be processed in the vicinity of the charging inlet  12 , it is possible to prevent the mixing together of the bills S (a) to be processed of different sections B (a) within the paper sheet processing device  11  (within the conveying unit  21 ). 
     Also, if a take-in sensor for detecting the take-in of paper sheets of the charging inlet is provided in a conventional paper sheet processing device, it is possible to achieve the abovementioned paper sheet processing device  11  just by a software upgrade and creation of the partition card S (b) without changing the hardware constitution. 
     When the abovementioned partition card S (b) is disposed in the paper sheet processing device  11  overlapping at least one bill S (a) to be processed and taken in from the charging inlet  12 , it causes the paper sheet processing device  11  to classify the paper sheet group G by having the take-in sensor  55  detect one of the identification hole groups  62   a  to  62   d  constituted by at least two through holes  63  provided in alignment in the conveyance direction. In this way, since the take-in sensor  55  is made to detect the presence of one of the identification hole groups  62   a  to  62   d  constituted by at least two through holes  63  provided in alignment in the conveyance direction, there is a reduction in the cost of the constitution for identifying the bills S (a) to be processed. Accordingly, it is possible to hold down a cost increase of the paper sheet processing device  11 . Moreover, it is possible to achieve a simplification and downsizing of the constitution for identifying the bills S (a) to be processed. 
     In addition, according to the partition card S (b), the identification hole groups  62   a  and  62   d  are formed at a position displaced in the conveyance orthogonal direction, which is orthogonal to the conveyance direction, from the central portion in the conveyance orthogonal direction. The identification hole groups  62   b  and  62   c  are formed at a position displaced in the conveyance orthogonal direction from the central portion in the conveyance orthogonal direction. The take-in sensor  55  is disposed at a position displaced in the width direction of the charging inlet  12  with respect to the central portion in the width direction. The length in the conveyance orthogonal direction between the identification hole groups  62   a  and  62   d  and the end of the main surface portions  61  and  64  at the side near the identification hole groups  62   a  and  62   d  in the conveyance orthogonal direction, and the length in the conveyance orthogonal direction between the identification hole groups  62   b  and  62   c  and the end of the main surface portions  61  and  64  at the side near the identification hole groups  62   b  and  62   c  in the conveyance orthogonal direction are the same length as the length in the width direction of the charging inlet  12  between the take-in sensor  55  and the end of the charging inlet  12  at the side near the take-in sensor  55  in the width direction. Therefore, it is possible to have the detection sensor  55  favorably detect one of the identification hole groups  62   a  to  62   d.    
     In addition, according to the partition card S (b), the two identification hole groups  62   a  and  62   d  are formed at one side in the conveyance orthogonal direction and the two identification hole groups  62   b  and  62   c  are formed at the other side in the conveyance orthogonal direction, and the length in the conveyance orthogonal direction between the identification hole groups  62   a  and  62   d  at the one side in the conveyance orthogonal direction and the one end of the main surface portions  61  and  64  at the side near the identification hole groups  62   a  and  62   d  in the conveyance orthogonal direction, and the length in the conveyance orthogonal direction between the identification hole groups  62   b  and  62   c  at the other side in the conveyance orthogonal direction and the other end of the main surface portions  61  and  64  at the side near the identification hole groups  62   b  and  62   c  in the conveyance orthogonal direction are the same length as the length in the width direction of the charging inlet  12  between the take-in sensor  55  and the end of the charging inlet  12  at the side near the take-in sensor  55  in this width direction. Therefore, it is possible to have the take-in sensor  55  detect one of the identification hole groups  62   a  to  62   d  regardless of the charging orientation (front/back and top/bottom). Therefore, there is no need to arrange the charging orientation, and so the workability is good. 
     The embodiment stated above may be modified as follows. 
     The partition card S (b) may be set at both the front and rear of the section B (a) in one paper sheet group G. In this case, as the first paper sheet group G a primary first partition card S (b), a first section B (a), and a secondary first partition card S (b) are stacked in this order, and next as a second paper sheet group G a primary second partition card S (b), a second section B (a), and a secondary second partition card S (b) are stacked in this order, with this being performed in accordance with the number of paper sheet groups G. After detection of the primary first partition card S (b), the first section B (a) is detected, and afterward the secondary first partition card S (b) is detected by the take-in sensor  55 . Then, the control unit  32  suspends take-in by the charging inlet  12  prior to the ejection roller  51  ejecting the paper sheet S immediately after the secondary first partition card S (b), and conveys the primary first partition card S (b), the first section B (a), and the secondary first partition card S (b) to the corresponding accumulation unit  14  and the reject unit  13 . Then, the control unit  32  restarts the take-in of the charging inlet  12 , and after detection of the primary second partition card S (b), the second section B (a) is detected. When the secondary second partition card S (b) is subsequently detected by the take-in sensor  55 , the control unit  32  suspends take-in by the charging inlet  12  prior to the ejection roller  51  ejecting the paper sheet S immediately after the secondary second partition card S (b). The aforementioned control is repeated appropriately. 
     In one paper sheet group U, the partition card S (b) may be set only after the section B (a). In this case, as the first paper sheet group G a first section B (a) and a first partition card S (b) are stacked in this order, and next as a second paper sheet group G a second section B (a) and a second partition card S (b) are stacked in this order, with this being performed in accordance with the number of paper sheet groups G. When the first section B (a) is detected and subsequently the first partition card S (b) is detected by the take-in sensor  55 , the control unit  32  suspends take-in by the charging inlet  12  prior to the ejection roller  51  ejecting the paper sheet S immediately after the first partition card S (b) and conveys the first section B (a) and the first partition card S (b) to the corresponding accumulation unit  14  and the reject unit  13 . Then, the control unit  32  restarts the take-in of the charging inlet  12 . After detection of the second section B (a) the second partition card S (b) is detected by the take-in sensor  55 . Then, the control unit  32  suspends take-in by the charging inlet  12  prior to the ejection roller  51  ejecting the paper sheet S immediately after the second partition card S (b). The aforementioned control is repeated appropriately. 
     The identification hole groups  62   a  to  62   d  may each also be constituted by three or more through holes  63 . That is, each of the identification hole groups  62   a  to  62   d  may be constituted by at least two of the through holes  63 . By constituting each of the identification hole groups  62   a  to  62   d  with three or more through holes  63 , it is possible to more reliably identify the partition card S (b) and the bills S (a) to be processed. 
     It is preferable that the through holes  63  that constitute each of the identification hole groups  62   a  to  62   d  be formed in a rectangular shape for absorbing positional variations with the take-in sensor  55  in the longitudinal direction of the partition card S (b). However, provided detection is possible by the take-in sensor  55 , the through holes  63  may be formed in any shape such as a circular shape, square shape, or another polygonal shape. 
     It is preferable that the four identification hole groups  62   a  to  62   d  be formed in the main surface portions  61  and  64  of the partition card S (b). However, provided detection is possible by the take-in sensor  55 , at least one of the identification hole groups  62   a  to  62   d  may be formed. 
     The identification hole groups  62   a  to  62   d  are arranged so that the positions thereof overlap with the identification display portion  71  in the longitudinal direction of the partition card S (b) as shown in  FIGS. 3 to 7 . However, the arrangement is not limited thereto, and as shown in  FIG. 8 , the identification hole groups  62   a  to  62   d  may be arranged so that the positions thereof do not overlap with the identification display portion  71  in the longitudinal direction of the partition card S(b) in accordance with the position of the take-in sensor  55 . In this case, as shown in  FIG. 9 , two identification hole groups  62   e  and  62   f  may be formed in the central portion of the main surface portion  61  of the partition card S (b) in the transverse direction. In this case, it is acceptable for at least one identification hole group to be formed. 
     A configuration shown in  FIG. 10  may be employed. That is, the two take-in rollers  52  may be provided at positions shifted in the width direction of the charging inlet  12  from the central portion in this direction. The take-in sensor  55  may be arranged with its position in the width direction of the charging inlet  12  aligned with the central portion of the charging inlet  12  in this width direction. Two identification hole groups  62   g  and  62   h  may be formed in the central portion of the main surface portion  61  of the partition card S (b) in the longitudinal direction. That is, the two identification hole groups  62   g  and  62   h  may be formed in the central portion of the main surface portion  61  of the partition card S (b) in the conveyance orthogonal direction. Thereby, it is possible to detect the identification hole groups  62   g  and  62   h  by the take-in sensor  55  regardless of the charging orientation of the partition card S (b). Therefore, since there is no need to arrange the charging orientation (front/back and top/bottom) of the partition card S (b), the workability is good. In this case as well, it is acceptable for at least one identification hole group to be formed. That is, only one identification hole group may be formed more to the leading side in the conveying direction than the central portion in the transverse direction of the main surface portion  61 . Only one identification hole group may be formed more to the trailing side in the conveying direction than the central portion in the transverse direction of the main surface portion  61 . An identification hole group may be formed more to the conveying direction leading side and the conveying direction trailing side than the central portion in the transverse direction of the main surface portion  61 . 
     It is preferable that, in the case of a partition card S (b) being detected by the take-in sensor  55 , the control unit  32  suspends take-in of the paper sheets S on the basis of this, but it may not perform such a suspension. 
     The partition card S (b) is not limited to its transverse direction serving as the conveying direction as described above, and so its longitudinal direction may also serve as the conveying direction. In this case, as shown in  FIG. 11 , each of the identification hole groups  62   a  to  62   d  is constituted by through holes  63  being disposed at a predetermined interval in the longitudinal direction (conveyance direction) of the partition card S (b). In this case as well, it is possible to appropriately adopt the abovementioned modifications. 
     The charging inlet  12  is not limited to being provided on the right-side surface of the paper sheet processing device  11  so as to open to the right side as shown in  FIG. 4  and the like, and may also be provided on the right-side surface of the paper sheet processing device  11  so as to open to the right side and the front as shown in  FIG. 12 . That is, the charging inlet  12  may be provided so that there is no wall portion  42 . In the case of there being no wall portion  42  such that the charging inlet  12  opens to the right side and the front at the right-side surface of the paper sheet processing device  11 , since the partition card S (b) is set in the charging inlet  12  so as to abut the wall portion  41  and the wall portion  43  similarly to the case of the wall portion  42  being present, it is possible to favorably detect one of the identification hole groups  62   a  to  62   d  by the take-in sensor  55  similarly to the case of the wall portion  42  being present. In addition, since it is possible to set paper sheets S in the charging inlet  12  from the front surface of the device, workability is better than the case of the charging inlet  12  only opening to the right side. Furthermore, a positioning portion that is movable in the width direction of the charging inlet  12  and that positions the partition card S (b) by abutting the end of the charging inlet  12  on the opposite side of the end that abuts the wall portion  43  may be provided in the bottom portion  40  and the wall portion  41 . Thereby, even when there is no wall portion  42  at the right-side surface of the paper sheet processing device  11  and the charging inlet  12  opens to the right side and the front, it is possible to more securely position the partition card S (b), and thus possible to more favorably detect one of the identification hole groups  62   a  to  62   d  by the take-in sensor  55 . 
     It is preferable that the partition card S (b) be disposed so as to abut the wall portion  41  and the wall portion  43  as shown in  FIG. 4  and  FIG. 12 . However, the through holes  63  have a predetermined length with respect to the width direction of the charging inlet  12  and can cope with positional variations in the width direction of the charging inlet  12  with respect to the take-in sensor  55  when the partition card S (b) is arranged in the charging inlet  12 . Therefore, as shown in  FIG. 13 , the partition card S (b) may be disposed in the charging inlet  12  having a gap with respect to the width direction of the charging inlet  12  between the end of the partition card S (b) and the wall portion  43 . 
     The case of the take-in sensor  55  being arranged at a position displaced to the wall portion  43  side with respect to the central portion of the charging inlet  12  in the width direction thereof has been described as an example, but of course the take-in sensor  55  may also be arranged at a position displaced to the wall portion  42  side with respect to the central portion of the charging inlet  12  in the width direction. 
     In the embodiment given above, the case of the paper sheet processing device  11  being a bill receiving device that receives bills has been described as an example, but it may also be a bill receiving and dispensing device that receives and dispenses bills. The paper sheet processing device  11  may also be a coin and bill receiving device that receives coins and bills, and a coin and bill receiving and dispensing device that receives and dispenses coins and bills. In addition, the embodiment may also be applied to a paper sheet processing device that processes various types of paper sheets S other than bills, with securities, cash vouchers and the like serving as the paper sheets to be processed. 
     A paper sheet processing device according to an embodiment of the present invention includes: a charging inlet that takes in paper sheets in a conveyance direction, the paper sheets including at least one target sheet and a partition card overlapped on the target sheet, the partition card having a main surface portion having at least one identification hole group, the identification hole group having at least two through holes arranged along the conveyance direction; a detection unit that detects take-in of the paper sheets by the charging unit, and detects the identification hole group; and a control unit that determines a paper sheet take-in of which have been detected by the detection unit is the partition card in a case where the identification hole group has been detected by the detection unit, the control unit determining that a paper sheet take-in of which have been detected by the detection unit is the target sheet in a case where the identification hole group has not been detected by the detection unit. 
     In the above paper sheet processing device, the detection unit may be arranged at a position displaced in a width direction of the charging inlet from a center of the charging inlet in the width direction of the charging inlet. The identification hole group may be provided at a position displaced in a first direction from a center of the main surface portion in the first direction, the first direction being orthogonal to the conveyance direction. The first length may be equal to a second length, the first length being a length in the first direction between the identification hole group and a first end of the main surface portion in the first direction, the second length being a length in the width direction of the charging inlet between the detection unit and an end of the charging inlet in the width direction of the charging inlet. 
     According to the above paper sheet processing device, a first length is equal to a second length, the first length being a length in the first direction between the identification hole group and a first end of the main surface portion in the first direction, the second length being a length in the width direction of the charging inlet between the detection unit and an end of the charging inlet in the width direction of the charging inlet. Therefore, it is possible to favorably detect an identification hole group by the detection unit. 
     In the above paper sheet processing device, the identification hole group may include: first two identification hole groups provided at a first side in the first direction; and second two identification hole groups provided at a second side in the first direction, the second side being opposite to the first side. A third length and a fourth length may be equal to a fifth length, the third length being a length in the first direction between the first two identification hole groups and the first end of the main surface portion, the fourth length being a length in the first direction between the second two identification hole groups and a second end of the main surface portion in the first direction, the second end of the main surface portion being opposite to the first end of the main surface portion, the fifth length being a length in the width direction of the charging inlet between the detection unit and the end of the charging inlet. 
     According to the above paper sheet processing device, the identification hole group includes: first two identification hole groups provided at a first side in the first direction; and second two identification hole groups provided at a second side in the first direction, the second side being opposite to the first side. A third length and a fourth length are equal to a fifth length, the third length being a length in the first direction between the first two identification hole groups and the first end of the main surface portion, the fourth length being a length in the first direction between the second two identification hole groups and a second end of the main surface portion in the first direction, the second end of the main surface portion being opposite to the first end of the main surface portion, the fifth length being a length in the width direction of the charging inlet between the detection unit and the end of the charging inlet. Therefore, it is possible to detect the identification hole group by the detection unit regardless of the charging orientation of the partition card. Therefore, since there is no need to arrange the charging orientation of the partition card, the workability is good. 
     In the above paper sheet processing device, a position of the detection unit in the width direction of the charging inlet may be aligned with a center of the charging inlet in the width direction of the charging inlet. The identification hole group may be provided at a center of the main surface portion in a first direction orthogonal to the conveyance direction. 
     According to the above paper sheet processing device, a position of the detection unit in the width direction of the charging inlet is aligned with a center of the charging inlet in the width direction of the charging inlet. The identification hole group is provided at a center of the main surface portion in a first direction orthogonal to the conveyance direction. Therefore, it is possible to detect the identification hole group by the detection unit regardless of the charging orientation of the partition card. Therefore, since there is no need to arrange the charging orientation of the partition card, the workability is good. 
     In the above paper sheet processing device, the detection unit may be installed in a vicinity of the charging inlet, and the control unit may suspend take-in of the paper sheets in a case where the control unit has determined that a paper sheet is the partition card. 
     According to the above paper sheet processing device, the control unit suspends take-in of the paper sheets in a case where the control unit has determined that a paper sheet is the partition card. Therefore, it is possible to create a take-in interval between target sheets before and after the partition card, that is, between target sheets with different classifications. Thereby, during a paper jam or the like, it is possible to favorably and easily separate target sheets with different classifications. Moreover, since the detection unit is installed in a vicinity of the charging inlet, when a paper sheet is determined to be the partition card and the take-in of the paper sheets is suspended, it is possible to have the paper sheets on the downstream side of the partition card remain in the charging inlet. Thereby, it is possible to inhibit mixing together of target sheets of different classifications within the paper sheet processing device. 
     In the above paper sheet processing device, the paper sheets may constitute a paper sheet group, and the control unit may classify the paper sheet group from another paper sheet group. 
     A partition card according to an embodiment of the present invention includes: a main surface portion having at least one identification hole group, the identification hole group having at least two through holes arranged along a conveyance direction. The partition card is taken-in in the conveyance direction by a charging inlet of a paper sheet processing device. The identification hole group is detected by a detection unit of the paper sheet processing device. The partition card is identified by a control unit of the paper sheet processing in a case where the identification hole group has been detected by the detection unit of the paper sheet processing device. 
     In the above partition card, the detection unit may be arranged at a position displaced in a width direction of the charging inlet from a center of the charging inlet in the width direction of the charging inlet. The identification hole group may be provided at a position displaced in a first direction from a center of the main surface portion in the first direction, the first direction being orthogonal to the conveyance direction. A first length may be equal to a second length, the first length being a length in the first direction between the identification hole group and a first end of the main surface portion in the first direction, the second length being a length in the width direction of the charging inlet between the detection unit and an end of the charging inlet in the width direction of the charging inlet. 
     According to the above partition card, a first length is equal to a second length, the first length being a length in the first direction between the identification hole group and a first end of the main surface portion in the first direction, the second length being a length in the width direction of the charging inlet between the detection unit and an end of the charging inlet in the width direction of the charging inlet. Therefore, it is possible to have the detection unit favorably detect the identification hole group. 
     In the above partition card, the identification hole group may include: first two identification hole groups provided at a first side in the first direction; and second two identification hole groups provided at a second side in the first direction, the second side being opposite to the first side, and a third length and a fourth length may be equal to a fifth length, the third length being a length in the first direction between the first two identification hole groups and the first end of the main surface portion, the fourth length being a length in the first direction between the second two identification hole groups and a second end of the main surface portion in the first direction, the second end of the main surface portion being opposite to the first end of the main surface portion, the fifth length being a length in the width direction of the charging inlet between the detection unit and the end of the charging inlet. 
     According to the above partition card, the identification hole group include: first two identification hole groups provided at a first side in the first direction; and second two identification hole groups provided at a second side in the first direction, the second side being opposite to the first side, and a third length and a fourth length are equal to a fifth length, the third length being a length in the first direction between the first two identification hole groups and the first end of the main surface portion, the fourth length being a length in the first direction between the second two identification hole groups and a second end of the main surface portion in the first direction, the second end of the main surface portion being opposite to the first end of the main surface portion, the fifth length being a length in the width direction of the charging inlet between the detection unit and the end of the charging inlet. Therefore, it is possible to have the detection unit detect the identification hole group regardless of the charging orientation. Therefore, since there is no need to arrange the charging orientation, the workability is good. 
     In the above partition card, a position of the detection unit in the width direction of the charging inlet may be aligned with a center of the charging inlet in the width direction of the charging inlet. The identification hole group may be provided at a center of the main surface portion in a first direction orthogonal to the conveyance direction. 
     According to the above partition card, a position of the detection unit in the width direction of the charging inlet is aligned with a center of the charging inlet in the width direction of the charging inlet. The identification hole group is provided at a center of the main surface portion in a first direction orthogonal to the conveyance direction. Therefore, it is possible to have the detection unit detect the identification hole group regardless of the charging orientation to the charging inlet. Therefore, since there is no need to arrange the charging orientation, the workability is good. 
     While preferred embodiments of the invention have been described and illustrated above, it should be understood that these are exemplary of the invention and are not to be considered as limiting. Additions, omissions, substitutions, and other modifications can be made without departing from the spirit or scope of the present invention. Accordingly, the invention is not to be considered as being limited by the foregoing description, and is only limited by the scope of the appended claims.