Patent Publication Number: US-2022230501-A1

Title: Coin loading method, coin replenishment method, coin loading apparatus and coin processing system

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to Japanese Application No. 2021-005157, filed Jan. 15, 2021, the entire contents of which are incorporated herein by reference. 
     TECHNICAL FIELD 
     The present disclosure relates to a coin loading method, a coin replenishment method, a coin loading apparatus and a coin processing system. 
     BACKGROUND ART 
     In the related art, coin depositing and dispensing machines that perform a coin depositing and dispensing process are known (see, for example, PTL 1). The coin depositing and dispensing machine disclosed in PTL 1 includes a replenishment collection cassette. A partition plate and an opening closing plate that opens and closes an opening of the partition plate are provided at an intermediate part in the replenishment collection cassette. A coin replenishment transport belt and an outlet are provided at a lower portion in the replenishment collection cassette. The replenishment collection cassette stores coins for initial replenishment on the lower side than the partition plate, and stores coins for additional replenishment on the upper side of the partition plate. 
     The coin depositing and dispensing machine further includes a coin replenishment cassette including a plurality of denomination basis replenishment coin storage units. A shutter is provided at the lower end of each of the plurality of denomination basis replenishment coin storage units. 
     When replenishing the dispense coin storage unit with a coin for initial replenishment stored in the replenishment collection cassette, the coin depositing and dispensing machine replenishes the dispense coin storage unit by driving the coin replenishment transport belt to output, from the outlet, a coin for initial replenishment stored on the lower side than the partition plate of the replenishment collection cassette. When the replenishment of the coin for initial replenishment is completed, the coin depositing and dispensing machine drives the coin replenishment transport belt, opens the opening closing plate of the replenishment collection cassette, outputs, from the outlet, the coin for additional replenishment stored on the upper side than the partition plate of the replenishment collection cassette, and stores it in a collection box. 
     When performing additional replenishment in the dispense coin storage unit, the coin depositing and dispensing machine opens the shutter of the denomination basis replenishment coin storage unit in which to store the coin to be added, and replenishes the dispense coin storage unit with the coin in the denomination basis replenishment coin storage unit. When there is no coin in the denomination basis replenishment coin storage unit, the coin depositing and dispensing machine replenishes the dispense coin storage unit with coins stored in the collection box. 
     CITATION LIST 
     Patent Literature 
     
         
         PTL 1 
         Japanese Patent Publication No. 2935452 
       
    
     SUMMARY 
     A coin loading method according to the present disclosure is a method of loading coins for replenishment of a coin processing apparatus, into a storage area provided in a cassette that is mountable to the coin processing apparatus, the coin loading method being performed before the cassette is mounted to the coin processing apparatus, the coin loading method including: loading, into the storage area, a first coin group including a first plurality of coins for initial replenishment of the coin processing apparatus; and loading, into the storage area, a second coin group including a second plurality of coins for additional replenishment of the coin processing apparatus. At least one of the first plurality of coins and the second plurality of coins includes the plural coins of each denomination of a plurality of denominations. 
     A coin replenishment method according to the present disclosure is a method of replenishing a coin processing apparatus with coins, the coin replenishment method including: mounting a cassette to the coin processing apparatus, the cassette being loaded with coins of a plurality of denominations by the coin loading method; receiving a coin from the cassette; recognizing a denomination of a received coin; determining whether it is necessary to replenish the coin processing apparatus with a recognized coin; replenishing the coin processing apparatus with the recognized coin when it is determined that it is necessary to perform replenishment; and returning the recognized coin to the cassette when it is determined that it is not necessary to perform replenishment. 
     A coin loading apparatus according to the present disclosure is configured to load coins for replenishment of a coin processing apparatus, into a storage area provided in a cassette that is mountable to the coin processing apparatus, the coin loading apparatus including: a storage unit configured to store coins by denomination; a loading unit configured to load coins stored in the storage unit into the storage area; and a control unit configured to control the storage unit and the loading unit to load a first coin group including a first plurality of coins for initial replenishment of the coin processing apparatus and a second coin group including a second plurality of coins for additional replenishment of the coin processing apparatus, into the storage area at different timings before the cassette is mounted to the coin processing apparatus. At least one of the first plurality of coins and the second plurality of coins includes the plural coins of each denomination of a plurality of denominations. 
     A coin processing system according to the present disclosure includes: a coin processing apparatus; a cassette that is mountable to the coin processing apparatus, the cassette including a storage area; and a coin loading apparatus configured to load a coin for replenishment in the coin processing apparatus into the storage area. The coin loading apparatus includes: a storage unit configured to store coins by denomination; a loading unit configured to load coins stored in the storage unit into the storage area; and a control unit configured to control the storage unit and the loading unit to load a first coin group including a first plurality of coins for initial replenishment of the coin processing apparatus and a second coin group including a second plurality of coins for additional replenishment of the coin processing apparatus, into the storage area at different timings before the cassette is mounted to the coin processing apparatus. At least one of the first plurality of coins and the second plurality of coins includes the plural coins of each denomination of a plurality of denominations. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 1 and Embodiment 2 of the present disclosure; 
         FIG. 2  is a longitudinal sectional view illustrating a loading state of a first coin group and a second coin group in a cassette according to Embodiment 1 of the present disclosure; 
         FIG. 3  is a flowchart of a coin loading process according to Embodiment 2 of the present disclosure; 
         FIG. 4  is a longitudinal sectional view illustrating a loading state of a first coin group in a cassette according to Embodiment 2 of the present disclosure; 
         FIG. 5  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 3 of the present disclosure; 
         FIG. 6  is a flowchart of a setting process of a first denomination basis loading number according to Embodiment 3 of the present disclosure; 
         FIG. 7  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 4 of the present disclosure; 
         FIG. 8  is a flowchart of a setting process of a first denomination basis loading number according to Embodiment 4 of the present disclosure; 
         FIG. 9  is a flowchart of a setting process of a second denomination basis loading number according to Embodiment 4 of the present disclosure; 
         FIG. 10  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 5 of the present disclosure; 
         FIG. 11A  is a top view illustrating an overall configuration of a cassette according to Embodiment 5 of the present disclosure; 
         FIG. 11B  is a sectional view taken along XIB-XIB of  FIG. 11A ; 
         FIG. 12  is a schematic view as viewed from the right side, illustrating an internal configuration of a coin processing apparatus according to Embodiment 5 of the present disclosure; 
         FIG. 13A  is a schematic view as viewed from the right side, illustrating an internal configuration of a coin loading apparatus when a coin is loaded into a cassette according to Embodiment 5 of the present disclosure; 
         FIG. 13B  is a schematic view as viewed from the front side, illustrating an internal configuration of the coin loading apparatus when a coin is loaded into the cassette according to Embodiment 5 of the present disclosure; and 
         FIG. 14  is a flowchart of a coin loading process according to Embodiment 5 of the present disclosure. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     The replenishment collection cassette disclosed in PTL 1 includes the opening closing plate that closes to store the coin for additional replenishment and opens to eject the coin, and as such the configuration cannot be simplified. In addition, the coin replenishment cassette disclosed in PTL 1 includes the plurality of denomination basis replenishment coin storage units that stores coins by denomination, and as such the configuration cannot be simplified. 
     An object of the present disclosure is to provide a coin loading method, a coin replenishment method, a coin loading apparatus and a coin processing system that can appropriately load the cassette with the coin for initial replenishment in the coin processing apparatus and the coin for additional replenishment in the coin processing apparatus while simplifying the configuration of the cassette. 
     In the coin loading method of the present disclosure, the loading of the first coin group may be executed at an earlier timing than the loading of the second coin group, or the loading of the second coin group is executed at an earlier timing than the loading of the first coin group. 
     In the coin loading method of the present disclosure, the cassette may include an inlet configured to receive a coin from outside of the cassette and store the coin in the storage area, and an outlet provided at a position lower than the inlet in a state where the cassette is mounted to the coin processing apparatus, the outlet being configured to eject the coin loaded into the storage area to the coin processing apparatus. The loading of the first coin group may be executed at an earlier timing than the loading of the second coin group. 
     In the coin loading method of the present disclosure, the cassette may include an outlet configured to eject the coin loaded into the storage area to the coin processing apparatus. In the loading of the second coin group, the second coin group may be loaded into a location farther from the outlet than the first coin group. 
     In the coin loading method according to the present disclosure, in the loading of the second coin group, the coins included in the second coin group may be loaded into a location farther from the outlet than the coins included in the first coin group. 
     In the coin loading method of the present disclosure, the loading of the first coin group may include loading the first coin group into the storage area such that, among coins included in the first coin group, the fewer a number of coins of a denomination, the closer the coins are to the outlet. 
     The coin loading method of the present disclosure may further include setting a number of coins making up the first coin group for each denomination in accordance with a number of coins of each denomination that are present in the coin processing apparatus before initial replenishment. 
     The coin loading method of the present disclosure may further include: receiving an inputting operation of specifying a number of coins for each denomination by a user; and setting a number of coins of each denomination making up at least one of the first coin group and the second coin group in accordance with the inputting operation. 
     The coin loading method of the present disclosure may further include at least one of calculating a first ratio for each denomination, and notifying that there is a denomination whose first ratio is smaller than a first threshold value when there is the denomination whose first ratio is smaller than the first threshold value, the first ratio being a ratio of a number of coins making up the first coin group with respect to a total number of coins making up the first coin group set based on the inputting operation; or calculating a second ratio for each denomination, and notifying that there is a denomination whose second ratio is smaller than a second threshold value when there is the denomination whose second ratio is smaller than the second threshold value, the second ratio being a ratio of a number of coins making up the second coin group with respect to a total number of coins making up the second coin group set based on the inputting operation. 
     The coin loading method of the present disclosure may further include at least one of again receiving the inputting operation related to a number of coins of each denomination making up the first coin group when there is the denomination whose first ratio is smaller than the first threshold value; or again receiving the inputting operation related to a number of coins of each denomination making up the second coin group when there is the denomination whose second ratio is smaller than the second threshold value. 
     The coin loading method of the present disclosure may further include at least one of calculating a first ratio for each denomination, and setting a number of coins of each denomination making up the first coin group such that there is no denomination whose first ratio is smaller than a first threshold value when there is the denomination whose first ratio is smaller than the first threshold value, the first ratio being a ratio of a number of coins making up the first coin group with respect to a total number of coins making up the first coin group set based on the inputting operation; or calculating a second ratio for each denomination, and setting a number of coins of each denomination making up the second coin group such that there is no denomination whose second ratio is smaller than a second threshold value when there is the denomination whose second ratio is smaller than the second threshold value, the second ratio being a ratio of a number of coins making up the second coin group with respect to a total number of coins making up the second coin group set based on the inputting operation. 
     The coin loading method according to the present disclosure according may further include estimating a total number of excess coins that are coins left over at the coin processing apparatus without being used for the initial replenishment after the initial replenishment among the coins making up the first coin group; calculating, for each denomination, a second ratio that is the ratio of the total number of excess coins and the number of coins making up the second coin group with respect to the total number of the estimated total number of the excess coins and the total number of coins making up the second coin group set based on the inputting operation, and setting the number of coins making up the second coin group for each denomination such that there is no denomination whose second ratio is smaller than the second threshold value when there is the denomination whose second ratio is smaller than the second threshold value. 
     The coin replenishment method according to the present disclosure may further include: stopping the receiving of the coin from the cassette when a required coin replenishment is completed. 
     The coin loading method, the coin replenishment method, the coin loading apparatus and the coin processing system of embodiments of the present disclosure can appropriately load the cassette with the coin for initial replenishment in the coin processing apparatus and the coin for additional replenishment in the coin processing apparatus while simplifying the configuration of the cassette. 
     EMBODIMENT 
     An embodiment of the present disclosure is described below. In the present disclosure, a configuration of performing a coin loading method of loading coins of a plurality of denominations into one storage area provided in a cassette that can be mounted to a coin processing apparatus is described. Note that in an embodiment of the present disclosure, the cassette includes only one storage area. 
     The coin loading method of the present disclosure includes a step of loading the first coin group for initial replenishment in the coin processing apparatus into the storage area, and a step of loading the second coin group for additional replenishment in the coin processing apparatus into the storage area before the cassette is mounted to the coin processing apparatus. The first coin group is composed of coins of a plurality of denominations whose number is set for each denomination. The second coin group is composed of coins of a plurality of denominations whose number is set for each denomination. In the following description, the number of the coins of each denomination making up the first coin group may be referred to as a first denomination basis loading number. The number of the coins of each denomination making up the second coin group may be referred to as a second denomination basis loading number. 
     The first coin group and the second coin group may be composed of coins of a plurality of denominations that are introduced only one country or region, or may be a mixture of coins of at least one denomination introduced in a first country or region and coins of at least one denomination introduced in a second country or region. 
     The initial replenishment is coin replenishment to set the number of coins for each denomination in the coin processing apparatus after the initial replenishment to the standard number set for each denomination. In this manner, the required number of coins for initial replenishment is determined at the time of loading the first coin group into the storage area. The first denomination basis loading number may be set based on the number of coins of each denomination remaining in the coin processing apparatus before the initial replenishment is performed (hereinafter may be referred to as “remaining coin”), by a coin loading apparatus for loading the first coin group into the storage area, an apparatus connected to the coin loading apparatus, or the user such as a clerk. In addition, in the case where the number of the remaining coins of each denomination is fixed at the same number each time, the first denomination basis loading number may be set as a fixed value. The standard number may be set for each initial replenishment, or may be a fixed value. In addition, the first denomination basis loading number may be set such that the coin making up the first coin group will not be left in the cassette after the initial replenishment or that the coin making up the first coin group will be left in the cassette after the initial replenishment. Note that in the case of an operation of collecting all coins without leaving coins in the coin processing apparatus in the closing balance operation of the coin processing apparatus, i.e., in an operation with no remaining coin, it suffices to simply set the number for the initial replenishment for each denomination as the standard number. 
     The additional replenishment is an operation of performing coin replenishment as necessary after the initial replenishment. The required number of coins for additional replenishment does not have to be determined at the time point of loading the second coin group into the storage area. The second denomination basis loading number may be set by the user for each loading process of the second coin group, or may be set as a fixed value. 
     Examples of processes performed by the coin processing apparatus where the initial replenishment and the additional replenishment of coins are performed include a process of depositing the purchase price to be paid by the customer, and a process of dispensing the change to be paid to the customer, but these processes are not limitative. 
     Embodiments are described in detail below. Note that in Embodiments 1 to 5, Euro coins introduced in the European Union are used as examples of coins to be loaded into the cassette, but coins introduced in other countries or regions, such as Japan and the United States, may also be used. In addition, in the following embodiments, the above-described setting number and setting method may be used as the setting number and the setting method for the first denomination basis loading number and the second denomination basis loading number, unless otherwise noted. In addition, in the following embodiments, the coin processing apparatus performs a process of depositing the purchase price to be paid by the customer and a process of dispensing the change to be paid to the customer in the store. In addition, the following embodiments, the coin for initial replenishment and the coin for additional replenishment are paid to the customer as change. 
     Embodiment 1 
     First, Embodiment 1 of the present disclosure is described with reference to the drawings. 
     Configuration of Coin Processing System 
     First, a configuration of a coin processing system including a coin loading apparatus is described.  FIG. 1  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 1 and Embodiment 2 of the present disclosure.  FIG. 2  is a longitudinal sectional view illustrating a loading state of a first coin group and a second coin group in a cassette according to Embodiment 1 of the present disclosure. 
     A coin processing system  1  of Embodiment 1 illustrated in  FIG. 1  includes a coin loading system  2 , and a coin processing apparatus  3 . The coin loading system  2  includes a coin loading apparatus  4 , and a cassette  5 . 
     The coin loading apparatus  4  loads coins of a plurality of denominations for replenishment in the coin processing apparatus  3  into one storage area  51  (see  FIG. 2 ) provided in the cassette  5 . The coin loading apparatus  4  includes a storage unit  41 , a loading unit  42 , and a control unit  43 . 
     The storage unit  41  includes a plurality of denomination basis storage units not illustrated in the drawing that stores coins of a plurality of denominations by denomination. The denomination basis storage unit includes a mechanism that ejects the stored coin to the loading unit  42 . 
     The loading unit  42  loads the coins stored in the storage unit  41  into the storage area  51 . The loading unit  42  includes a mechanism that transports, into the storage area  51 , the coin ejected from the storage unit  41 . 
     The control unit  43  controls the storage unit  41  and the loading unit  42  to load a first coin group C 1  for initial replenishment in the coin processing apparatus  3  (see, for example,  FIG. 2 ) into the storage area  51 . 
     The control unit  43  controls the storage unit  41  and the loading unit  42  to load a second coin group for additional replenishment in the coin processing apparatus  3  (see, for example,  FIG. 2 ) into the storage area  51 . 
     The control unit  43  performs the control of loading the first coin group C 1  into the storage area  51  and the control of loading the second coin group C 2  into the storage area  51  at different timings. The control unit  43  performs the control of loading the coin into the storage area  51  such that the first coin group C 1  is easily output from the cassette  5  at an earlier timing than the second coin group C 2 . For example, the control unit  43  controls the storage unit  41  and the loading unit  42  such that the second coin group C 2  is loaded at a position farther from the outlet, described later, of the cassette  5  than the first coin group C 1 , and thus the first coin group C 1  is easily output from the cassette  5  at an earlier timing than the second coin group C 2 . Note that the loading of the coin included in the second coin group C 2  at a position farther from the outlet of the cassette  5  than the coin included in the first coin group C 1  means loading of the first coin group C 1  and the second coin group C 2  such that at least one coin included in the second coin group C 2  is located at a position farther from the outlet than all coins included in the first coin group C 1 , that is, all coins included in the first coin group C 1  are ejected from the outlet before all coins included in the second coin group C 2  are ejected from the outlet. That is, the coin included in the first coin group C 1  and the coin included in the second coin group C 2  may be mixed as long as the above-mentioned loading condition is satisfied. 
     As illustrated in  FIG. 2 , the cassette  5  includes a housing  52 . The inner space of the housing  52  functions as one storage area  51 . The housing  52  includes a placing part  53  where coins are placed, an inlet not illustrated in the drawing for storing coins in the storage area  51 , and an outlet not illustrated in the drawing for ejecting coins in the storage area  51 . The cassette  5  may be configured such that the coins are ejected from the outlet in the order from the coin loaded on the lower side in the storage area  51  or that the coins are ejected from the outlet in the order from the coin loaded on the upper side in the storage area  51 . An example of the cassette  5  in which the coin is ejected in the order from the coin loaded on the lower side may be a configuration that includes an outlet provided at the bottom surface or a lower side in the side surface of the housing  52  and is mounted to the coin processing apparatus  3  without changing the vertical orientation, but such a configuration is not limitative. An example of the cassette  5  in which the coin is ejected in the order from the coin loaded on the upper side may be a configuration that includes an outlet provided at the top surface or an upper side in the side surface of the housing  52  and is mounted to the coin processing apparatus  3  upside down, but such a configuration is not limitative. 
     Coin Loading Process Using Coin Loading Apparatus 
     Next, a coin loading process using the coin loading apparatus  4  is described. Note that in Embodiment 1, the first coin group C 1  is composed of 1 euro (EUR) coin, 2 euro coin and 50 cent (C) coin, and the second coin group C 2  is composed of 1 euro coin, 2 euro coin, and 50 cent coin as with the first coin group C 1 , but the denomination and the number of the denominations of the first and second coin groups C 1  and C 2  are not limited to the above-mentioned configuration. In addition, a configuration is described below in which the first denomination basis loading number of the 50 cent coin is 100, the first denomination basis loading number of the 1 euro coin is 50, and the first denomination basis loading number of the 2 euro coin is 100 in the first coin group C 1 , whereas the second denomination basis loading number of the 50 cent coin is 50, the second denomination basis loading number of the 1 euro coin is 300, and the second denomination basis loading number of the 2 euro coin is 900 in the second coin group C 2 , but the first and second denomination basis loading numbers are not limited to the above-mentioned configuration. 
     The user mounts the cassette  5  to the coin loading apparatus  4 . The control unit  43  of the coin loading apparatus  4  recognizes the first and second denomination basis loading numbers when the cassette  5  is mounted to the coin loading apparatus  4 . Examples of the method of the control unit  43  to recognize the first and second denomination basis loading numbers are as follows. For example, loading number data that maps the information related to the first and second denomination basis loading numbers and the ID of the cassette  5  or the coin processing apparatus  3  is stored in a management server not illustrated in the drawing. The ID of the cassette  5  or the coin processing apparatus  3  to which the cassette  5  is mounted is recorded in a memory unit, not illustrated in the drawing, of the cassette  5 . The control unit  43  may acquire the loading number data corresponding to the ID of the cassette  5  in the memory unit from the management server, so as to recognize the first and second denomination basis loading numbers based on the acquired loading number data. In addition, the loading number data may be recorded in a memory unit, not illustrated in the drawing, of the coin loading apparatus  4  or the coin processing apparatus  3 , the control unit  43  may acquire the loading number data corresponding to the ID recorded in the memory unit of the cassette  5  from the memory unit of the coin loading apparatus  4  or the coin processing apparatus  3 . 
     In the case where the cassette  5  is configured such that the coin is ejected in the order from the coin loaded on the lower side, the control unit  43  controls the storage unit  41  and the loading unit  42  such that the second coin group C 2  is loaded after the first coin group C 1  is loaded. As illustrated in  FIG. 2 , the storage unit  41  and the loading unit  42  load 100 50 cent coins, 50 1 euro coins and 100 2 euro coins, which make up the first coin group C 1 , into the storage area  51  in this order. Next, the storage unit  41  and the loading unit  42  load 50 50 cent coins, 300 1 euro coins and 900 2 euro coins in this order on the upper side of the first coin group C 1 . 
     On the other hand, in the case where the cassette  5  is configured such that the coin is ejected in the order from the coin loaded on the upper side, the control unit  43  controls the storage unit  41  and the loading unit  42  such that the first coin group C 1  is loaded after the second coin group C 2  is loaded. In this case, the storage unit  41  and the loading unit  42  load 100 2 euro coins, 50 1 euro coins and 100 50 cent coins, which make up the first coin group C 1 , in this order after 900 2 euro coins, 300 1 euro coins and 50 50 cent coins, which make up the second coin group C 2 , are loaded in this order. That is, the coins are loaded in the reverse order of the order of the cassette  5  with the configuration in which the coin is ejected in the order from the coin loaded on the lower side. 
     Coin Replenishment Process Using Coin Processing Apparatus 
     Next, a coin replenishment process using the coin processing apparatus  3  is described. 
     The user removes the cassette  5  loaded with the first coin group C 1  and the second coin group C 2  from the coin loading apparatus  4 , and mounts it to the coin processing apparatus  3  as indicated by the chain double-dashed line in  FIG. 1 . When the cassette  5  is mounted to the coin processing apparatus  3 , the coin processing apparatus  3  ejects the coin from the outlet of the cassette  5  and performs initial replenishment in the coin processing apparatus  3 . At this time, the first coin group C 1  is easily output from the cassette  5  at an earlier timing than the second coin group C 2 , and thus the increase in replenishment time of the first coin group C 1  for initial replenishment can be suppressed. Through the initial replenishment, the standard number of coins set for each denomination are stored in the coin processing apparatus  3 . 
     In addition, when it is determined that additional replenishment of the coin is required such as when the remaining change is low, the coin processing apparatus  3  performs additional replenishment in the coin processing apparatus  3  by ejecting the coin from the outlet of the cassette  5 , for example. At this time, additional replenishment of the coin making up the second coin group C 2  is performed. 
     Effects of Embodiment 1 
     The coin loading apparatus  4  loads the first coin group C 1  for initial replenishment in the coin processing apparatus  3  into the storage area  51 , and loads the second coin group C 2  for additional replenishment in the coin processing apparatus  3  into the storage area  51 , which is the same loading area as that of the first coin group C 1 . In this manner, since the loading of the first coin group C 1  and the loading of the second coin group C 2  into one storage area  51  are separately performed, the first coin group C 1  and the second coin group C 2  can be loaded into one storage area  51  such that the replenishment in the coin processing apparatus  3  in a predetermined order can be achieved without providing the cassette  5  with an opening closing plate that is closed for loading the second coin group C 2  and opened for ejecting the second coin group C 2  or with a plurality of denomination basis replenishment coin storage units. Thus, the coin loading apparatus  4  can appropriately load the cassette  5  with the coin for initial replenishment in the coin processing apparatus  3  and the coin for additional replenishment in the coin processing apparatus  3  while simplifying the configuration of the cassette  5 . 
     Embodiment 2 
     Next, Embodiment 2 of the present disclosure is described with reference to the drawings. Note that since the coin replenishment process using the coin processing apparatus is identical to that of Embodiment 1, the description of the coin replenishment process is omitted. In addition, in Embodiment 2 and Embodiments 3 to 5 described later, a cassette in which the coin loaded on the lower side is easily ejected first is exemplified. 
     Configuration of Coin Loading Apparatus 
     A coin loading apparatus  4 A and the cassette  5  of Embodiment 2 illustrated in  FIG. 1  make up the coin loading system  2 A. The coin loading system  2 A and the coin processing apparatus  3  make up a coin processing system  1 A. The coin loading apparatus  4 A includes the storage unit  41 , the loading unit  42 , and a control unit  43 A. The control unit  43 A controls the storage unit  41  and the loading unit  42  such that the first coin group C 1  is loaded into the storage area  51  in a state different from that of Embodiment 1. Under the control of the control unit  43 A, the storage unit  41  and the loading unit  42  load the first coin group C 1  into the storage area  51  such that the fewer the number of the coins of the denomination among the coins of a plurality of denominations making up the first coin group C 1 , the earlier the timing they are output from the cassette  5 . 
     Coin Loading Process Using Coin Loading Apparatus 
     Next, a coin loading process using the coin loading apparatus  4 A is described.  FIG. 3  is a flowchart of a coin loading process according to Embodiment 2 of the present disclosure.  FIG. 4  is a longitudinal sectional view illustrating a loading state of a first coin group in a cassette according to Embodiment 2 of the present disclosure. 
     As illustrated in  FIG. 3 , the control unit  43 A recognizes the first denomination basis loading number and the second denomination basis loading number (step S 1 ). The same method as that described in Embodiment 1 may be used as the method of recognizing the first denomination basis loading number and the second denomination basis loading number. 
     The control unit  43 A determines the loading order of each coin of the first coin group C 1  such that the fewer the number of the coins of the denomination, the earlier the timing they are output from the cassette  5  (step S 2 ). For example, in the case where the first coin group C 1  is composed of 50 50 cent coins, 450 1 euro coins and 1000 2 euro coins, the loading order is determined such that each coin is loaded into the storage area  51  in the order of the 50 cent coin, the 1 euro coin and the 2 euro coin as illustrated in  FIG. 4 . For example, the control unit  43 A determines the loading order such that the fewer the number of the coins of the denomination, the closer the loaded position is to the outlet of the cassette  5 . 
     As illustrated in  FIG. 4 , under the control of the control unit  43 A, the storage unit  41  and the loading unit  42  load the first coin group C 1  into the storage area  51  in the loading order determined at step S 2  (step S 3 ). 
     As illustrated in  FIG. 4 , under the control of the control unit  43 A, the storage unit  41  and the loading unit  42  load the second coin group C 2  into the storage area  51  (step S 4 ). As with the first coin group C 1 , the loading order of the coins of the second coin group C 2  may be an order in which the fewer the number of the coins of the denomination, the earlier the timing they are output from the cassette  5 , or an order set by the user, or, an order set in advance. 
     Effects of Embodiment 2 
     The Embodiment 2 achieves the following effects in addition to the same effects as the effects of Embodiment 1. The coin loading apparatus  4 A loads the coins of the first coin group C 1  into the storage area  51  such that the fewer the number of the coins of the denomination, the earlier the timing they are output from the cassette  5 . Thus, the coins of the denomination with a small number can be speedily and reliably provided to replenish the coin processing apparatus  3 . 
     Embodiment 3 
     Next, Embodiment 3 of the present disclosure is described with reference to the drawings. Note that the coin replenishment process using the coin processing apparatus is identical to that of Embodiment 1, and therefore the description thereof is omitted. 
     Configuration of Coin Processing System 
     First, a configuration of the coin processing system is described.  FIG. 5  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 3 of the present disclosure. 
     A coin processing system  1 B of Embodiment 3 illustrated in  FIG. 5  includes a coin loading system  2 B and a coin processing apparatus  3 B. The coin loading system  2 B includes a loading number setting unit  6 B, a coin loading apparatus  4 B, and the cassette  5 . Note that while Embodiment 3 describes a configuration in which the loading number setting unit  6 B is not included in the coin loading apparatus  4 B, the loading number setting unit  6 B may be included in the coin loading apparatus  4 B. 
     The coin processing apparatus  3 B is communicatively connected to the loading number setting unit  6 B. The coin processing apparatus  3 B transmits remaining coin information to the loading number setting unit  6 B after a closing balance process. The closing balance process is a process performed after the store&#39;s business hours to count, for each denomination, the number, the total amount and the like of the coins that are stored in the cassette  5  during the store&#39;s business hours. The remaining coin information is used to specify the number of the coins (remaining coins) of each denomination remaining in the coin processing apparatus  3 B after the closing balance process, before the initial replenishment in the coin processing apparatus  3 B. In the case where the number of the remaining coins of each denomination is fixed at the same number each time, information that only notifies that the closing balance process has been performed may be used as the remaining coin information. In the case where the number of the remaining coins of each denomination can be changed for each closing balance process, information that specifies the number of the remaining coins of each denomination after the closing balance process may be used as the remaining coin information. 
     The loading number setting unit  6 B is communicatively connected to the control unit  43 B of the coin loading apparatus  4 B. The loading number setting unit  6 B sets the first denomination basis loading number on the basis of the remaining coin information transmitted from the coin processing apparatus  3 B. The loading number setting unit  6 B transmits, to the control unit  43 B, information related to the set first denomination basis loading number. The process of the loading number setting unit  6 B is elaborated later. 
     The control unit  43 B recognizes the first denomination basis loading number on the basis of the information transmitted from the loading number setting unit  6 B. The control unit  43 B performs the control of loading the first coin group C 1  into the cassette  5  on the basis of the first denomination basis loading number set by the loading number setting unit  6 B as with the control unit  43  of Embodiment 1. The control unit  43 B performs the control of loading of the second coin group C 2  into the cassette  5  as with the control unit  43  of Embodiment 1. 
     Coin Loading Process Using Coin Loading Apparatus 
     Next, a coin loading process using the coin loading apparatus  4 B is described. Note that in the coin loading process, the processes other than the setting process of the first denomination basis loading number are same as those of Embodiment 1, and therefore the description thereof is omitted.  FIG. 6  is a flowchart of a setting process of a first denomination basis loading number according to Embodiment 3 of the present disclosure. 
     As illustrated in  FIG. 6 , the loading number setting unit  6 B acquires the remaining coin information transmitted from the coin processing apparatus  3 B (step S 11 ). 
     Next, the loading number setting unit  6 B recognizes the standard number (step S 12 ). The standard number is recorded in a memory unit, not illustrated in the drawing, of the loading number setting unit  6 B, for example. 
     Next, the loading number setting unit  6 B sets the first denomination basis loading number (step S 13 ). The loading number setting unit  6 B calculates the number obtained by subtracting the remaining number based on the remaining coin information from the standard number for each denomination, and sets the calculation result as the first denomination basis loading number. 
     Effects of Embodiment 3 
     The Embodiment 3 achieves the following effects in addition to the same effects as the effects of Embodiment 1. The loading number setting unit  6 B sets the first denomination basis loading number on the basis of the remaining coin information. The coin loading apparatus  4 B loads the first coin group C 1  into the cassette  5  on the basis of the details set by the loading number setting unit  6 B. Thus, even when the user does not set the denomination basis loading number, the coin loading apparatus  4 B can load the coins for initial replenishment into the cassette  5  such that the number of the coins remaining in the cassette  5  after the initial replenishment is minimum. 
     Modifications of Embodiment 3 
     Under the control of the control unit  43 B, the storage unit  41  and the loading unit  42  may load each coin of the first coin group C 1  into the storage area  51  such that the fewer the number of the coins of the denomination, the earlier the timing they are output from the cassette  5 , as in Embodiment 2. 
     Embodiment 4 
     Next, Embodiment 4 of the present disclosure is described with reference to the drawings. Note that the coin replenishment process using the coin processing apparatus is identical to that of Embodiment 1, and therefore the description thereof is omitted. 
     Configuration of Coin Processing System 
     First, a configuration of the coin processing system is described.  FIG. 7  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 4 of the present disclosure. 
     A coin processing system  1 C of Embodiment 4 illustrated in  FIG. 7  includes a coin loading system  2 C, and the coin processing apparatus  3 . The coin loading system  2 C includes a coin loading apparatus  4 C, and the cassette  5 . The coin loading apparatus  4 C includes the storage unit  41 , the loading unit  42 , a control unit  43 C, an input unit  44 C, and a display unit  45 C. 
     The input unit  44 C transmits a signal based on the inputting operation by the user to the control unit  43 C. The display unit  45 C displays information based on the control of the control unit  43 C. Note that at least one of the input unit  44 C and the display unit  45 C may be composed of a member separated from the coin loading apparatus  4 C, or may be integrated with the coin loading apparatus  4 C. As the input unit  44 C and the display unit  45 C, a touch-screen display apparatus may be used. 
     The control unit  43 C receives a first inputting operation of the input unit  44 C by the user. When the number of each denomination of the first coin group C 1  for initial replenishment is input through the first inputting operation, the control unit  43 C sets the first denomination basis loading number on the basis of the first inputting operation. As with the control unit  43  of Embodiment 1, the control unit  43 C performs the control of loading the first coin group C 1  into the cassette  5  on the basis of the set first denomination basis loading number. The control unit  43 C receives a second inputting operation of the input unit  44 C by the user. When the number of each denomination of the second coin group C 2  for additional replenishment is input through the second inputting operation, the control unit  43 C sets the second denomination basis loading number on the basis of the second inputting operation, and performs the control of loading of the second coin group C 2  into the cassette  5  on the basis of the set second denomination basis loading number as with the control unit  43  of Embodiment 1. 
     Coin Loading Process Using Coin Loading Apparatus 
     Next, a coin loading process using the coin loading apparatus  4 C is described. Note that in the coin loading process, processes other than the process of setting the first denomination basis loading number and the second denomination basis loading number are identical to those of Embodiment 1, and therefore the description thereof is omitted.  FIG. 8  is a flowchart of a setting process of a first denomination basis loading number according to Embodiment 4 of the present disclosure.  FIG. 9  is a flowchart of a setting process of a second denomination basis loading number according to Embodiment 4 of the present disclosure. 
     First, the setting process of the first denomination basis loading number is described. As illustrated in  FIG. 8 , under the control of the control unit  43 C, the display unit  45 C displays information for facilitating the first inputting operation for setting the first denomination basis loading number (step S 21 ). 
     When the user performs the first inputting operation using the input unit  44 C, the control unit  43 C receives the first inputting operation (step S 22 ). 
     The control unit  43 C calculates a first ratio for each denomination (step S 23 ). The control unit  43 C calculates, as the first ratio, the ratio of the number of the coins making up the first coin group C 1  with respect to the total number of the coins making up the first coin group C 1  set based on the first inputting operation. For example, in the case where the standard numbers of the 50 cent coin, 1 euro coin, and 2 euro coin making up the first coin group C 1  are 50, 450 and 1000, respectively, when the first denomination basis loading numbers of the 50 cent coin, 1 euro coin, and 2 euro coin making up the first coin group C 1  are set to the same numbers as the standard numbers (50, 450 and 1000) through the first inputting operation, the control unit  43 C calculates 3.3% (50/(50+450+1000)) as the first ratio of the 50 cent coin. The control unit  43 C calculates 30.0% and 66.7% as the first ratios of 1 euro coin and 2 euro coin, respectively. 
     The control unit  43 C determines whether there is a denomination whose first ratio is smaller than a first threshold value in the coins of the denominations making up the first coin group C 1  (step S 24 ). The first threshold value is set based on the number of coins of each denomination desired by the user for initial replenishment, for example. The control unit  43 C may set the first threshold value as a value input by the user using the input unit  44 C, or may set the first threshold value based on a table of the relationship between the number of coins of each denomination for initial replenishment and the first threshold value, and the number of coins of each denomination desired for initial replenishment input by the user using the input unit  44 C. For example, in the case where the user desires to set the total number of the coins making up the first coin group C 1  to at most 1500 in anticipation of insufficiency of change, the first threshold value is set to 10% (for initial replenishment of three types of denominations, 150 or more coins are required for each denomination). In addition, for example, in the case where the user desires to set the total number of the coins making up the first coin group C 1  to at most approximately 200 to 300 in anticipation of no insufficiency of change, the first threshold value is set to 5% (for initial replenishment of three types of denominations, approximately 3 to 5 coins for each denomination). 
     When it is determined that there is no denomination whose first ratio is smaller than the first threshold value (step S 24 : NO), the control unit  43 C sets, as the first denomination basis loading number, the number of coins of each denomination based on the first inputting operation (step S 25 ). 
     When it is determined that there is a denomination whose first ratio is smaller than the first threshold value (step S 24 : YES), the control unit  43 C performs a control of notifying that there is the denomination whose first ratio is smaller than the first threshold value (step S 26 ). For example, the control unit  43 C controls the display unit  45 C such that the display unit  45 C displays the fact that there is the denomination whose first ratio is smaller than the first threshold value. Note that the display unit  45 C may further display at least one of the total number of the coins making up the first coin group C 1  on the basis of the first inputting operation, the first denomination basis loading number of all denominations, and the first threshold value and the first ratio of all denominations. When displaying the first denomination basis loading number of all denominations, the display unit  45 C may display the first denomination basis loading number of the denomination whose first ratio is smaller than the first threshold value, with color and/or size different from that of the first denomination basis loading number of the denomination that is equal to or greater than the first threshold value. In addition, in the case where a sound output unit such as a speaker is disposed in the coin loading apparatus  4 C, the sound output unit may output a sound and/or a voice that notifies that there is the denomination whose first ratio is smaller than the first threshold value under the control of the control unit  43 C. 
     After the process of step S 26 , the display unit  45 C performs the process of step S 21  and displays information for facilitating the first inputting operation. Thereafter, until the user performs the first inputting operation so that there is no the denomination whose first ratio is smaller than the first threshold value, the control unit  43 C and the display unit  45 C repeat the processes of steps S 21  to S 24  and step S 26 . 
     Next, the process of setting the second denomination basis loading number is described. As illustrated in  FIG. 9 , after the setting of the first denomination basis loading number is completed, the display unit  45 C under the control of the control unit  43 C displays information for facilitating the second inputting operation for setting the second denomination basis loading number (step S 31 ). 
     When the user performs the second inputting operation using the input unit  44 C, the control unit  43 C receives the second inputting operation (step S 32 ). 
     On the basis of the standard number and the first denomination basis loading number set at step S 25 , the control unit  43 C estimates the number of excess coins of each denomination and the total number of excess coins, which are coins that are left over without being used for the initial replenishment after the initial replenishment among the coins making up the first coin group C 1  the coin processing apparatus  3  (step S 33 ). When the setting process of the first denomination basis loading number illustrated in  FIG. 8  is performed, the number of coins of each denomination is set such that the first ratio of all denominations making up the first coin group C 1  is equal to or greater than the first threshold value regardless of the standard number, and consequently in some situation there is a denomination whose first denomination basis loading number is greater than the standard number. In this case, coins of the number obtained by subtracting the standard number from the first denomination basis loading number are left over as the excess coins without being used for the initial replenishment in the coin processing apparatus  3 . The excess coins may include a coin that remains in the cassette  5  without ever being ejected from the cassette  5  to the coin processing apparatus  3 . The excess coins may include a coin that has once ejected from the cassette  5  to the coin processing apparatus  3  but have been returned to the cassette  5  because the number of coins of the same denomination used for the initial replenishment of the coin processing apparatus  3  has reached the standard number. The control unit  43 C estimates the total number of the excess coins and the number of the excess coins of each denomination. 
     The control unit  43 C calculates a second ratio for each denomination (step S 34 ). The control unit  43 C calculates, as the second ratio, a ratio of the sum of the number of excess coins and the number of coins making up second coin group C 2  with respect to the sum of the total number of the excess coins estimated at step S 33  and the total number of the coins making up the second coin group C 2  set based on the second inputting operation. For example, in the case where it is estimated that only 150 50 cent coins in the first coin group C 1  are left over as the excess coins through the process of step S 33 , and the second denomination basis loading numbers of the 50 cent coin, 1 euro coin, and 2 euro coin making up the second coin group C 2  are set to 50, 450 and 1000, respectively through the second inputting operation, the control unit  43 C calculates 12.1% ((150+50)/(150+50+450+1000)) as the second ratio of the 50 cent coin. 
     The control unit  43 C determines whether there is a denomination whose second ratio is smaller than the second threshold value in the denominations of the coins making up the second coin group C 2  (step S 35 ). The second threshold value is set based on the number of coins of each denomination desired by the user for additional replenishment, for example. The control unit  43 C can set the second threshold value by the same method as the first threshold value setting method. The second threshold value may be or may not be the same as the first threshold value. 
     When it is determined that there is no denomination whose second ratio is smaller than the second threshold value (step S 35 : NO), the control unit  43 C sets the number of coins of each denomination based on the second inputting operation as the second denomination basis loading number (step S 36 ). 
     When it is determined that there is a denomination whose second ratio is smaller than the second threshold value (step S 35 : YES), the control unit  43 C performs a control of notifying that there is a denomination whose second ratio is smaller than the second threshold value (step S 37 ). A control similar to the control of notifying that there is the denomination whose first ratio is smaller than the first threshold value may be exemplified as the control of notifying that there is a denomination whose second ratio is smaller than the second threshold value. 
     After the process of step S 37 , the display unit  45 C performs the process of step S 31  and displays information for facilitating the second inputting operation. Thereafter, until the user performs the second inputting operation so that there is no denomination whose second ratio is smaller than the second threshold value, the control unit  43 C and the display unit  45 C repeat the processes of steps S 31  to S 35  and step S 37 . 
     Effects of Embodiment 4 
     The Embodiment 4 achieves the following effects in addition to the same effects as the effects of Embodiment 1. The coin loading apparatus  4 C sets the first denomination basis loading number on the basis of the first inputting operation by the user, and sets the second denomination basis loading number on the basis of the second inputting operation. Thus, the user can perform the initial replenishment and the additional replenishment in the coin processing apparatus  3  with coins of the number corresponding to the estimation on the change to be paid of the user. 
     In the case where there is the denomination whose first ratio is smaller than the first threshold value, the number of the coins of that denomination can possibly be extremely smaller than that of coins of other denominations. The coins of the denomination of extremely small number may not come out of the cassette  5  easily. As a result, there is a risk that the number required will not be easily available, and that the initial replenishment will take a long time. The same applies to the coins of the denomination whose second ratio is smaller than the second threshold value. In view of this, as in Embodiment 4, by making a notification that there is a denomination whose first ratio is smaller than the first threshold value or there is a denomination whose second ratio is smaller than the second threshold value, it is possible to inform the user of the risk of the occurrence of the above-mentioned defect so that the user can take appropriate measure against that defect. 
     Modifications of Embodiment 4 
     Under the control of the control unit  43 C, the storage unit  41  and the loading unit  42  may load each coin of the first coin group C 1  into the storage area  51  such that the fewer the number of the coins of the denomination, the earlier the timing they are output from the cassette  5 , as in Embodiment 2. 
     In the case where there is a denomination whose first and second ratios are smaller than the first and second threshold values, the control unit  43 C need not perform a control of notifying that fact. 
     In the case where there is a denomination whose first and second ratios are smaller than the first and second threshold values, the control unit  43 C may reset the first and second denomination basis loading numbers such that there is no denomination whose first and second ratios are smaller than the first and second threshold values, without again accepting the first and second inputting operations by the user. In this case, the display unit  45 C may display a fact that the control unit  43 C has reset the first and second denomination basis loading numbers under the control of the control unit  43 C. 
     In the case where there is a denomination whose first and second ratios are smaller than the first and second threshold values, the control unit  43 C may cause the display unit  45 C to display a screen for the user to select whether the user again performs the first and second inputting operations, or the control unit  43 C sets the first and second denomination basis loading numbers. 
     The control unit  43 C need not set the first denomination basis loading number on the basis of the first ratio, and in this case, the process of step S 25  may be performed after the process of step S 22  is performed, or the first denomination basis loading number may be set on the basis of the remaining coin information as in Embodiment 3. 
     The control unit  43 C need not set the second denomination basis loading number on the basis of the second ratio, and in this case, the process of step S 36  may be performed after the process of step S 32 . 
     At step S 34 , the control unit  43 C may calculate, as the second ratio, a ratio of the number of the coins making up the second coin group C 2  with respect to the total number of the coins making up the second coin group C 2  set based on the second inputting operation, as with the process of step S 23 . In this case, the process of step S 33  becomes unnecessary. 
     The control unit  43 C may set the first denomination basis loading number on the basis of information recorded in the memory unit not illustrated in the drawing without performing the setting process of the first denomination basis loading number illustrated in  FIG. 8 . The control unit  43 C may set the second denomination basis loading number on the basis of information recorded in the memory unit not illustrated in the drawing without performing the second denomination basis loading number setting process illustrated in  FIG. 9 . 
     In the case where there is a coin remaining in the cassette  5  before the loading of coins, the control unit  43 C may set the first and second denomination basis loading numbers for each denomination such that the first and second ratios are equal to or greater than the first and second threshold values, without including that remaining coins. In this case, the display unit  45 C may display the first and second denomination basis loading numbers. In addition, the control unit  43 C may control the storage unit  41  and the loading unit  42  such that after all coins remaining in the cassette  5  are stored in the storage unit  41  by denomination, the coins of the first and second denomination basis loading numbers are loaded into the cassette  5 , and then, the coins of the denomination and the number corresponding to the coins remaining in the cassette  5  are returned to the cassette  5 . 
     Embodiment 5 
     Next, Embodiment 5 of the present disclosure is described with reference to the drawings. 
     Configuration of Coin Processing System 
     First, a configuration of the coin processing system is described. In Embodiment 5, a coin processing system used in a store is described. The front office of a store is an area where a coin determination apparatus for customers to make determination of goods is installed. The back office of a store is an area where an apparatus that manages banknotes and coins handled in the coin determination apparatus is installed.  FIG. 10  is a block diagram illustrating an overall configuration of a coin processing system according to Embodiment 5 of the present disclosure. 
     A coin processing system  1 D illustrated in  FIG. 10  is a distribution system, and is installed in a store. The coin processing system  1 D includes one coin loading system  2 D, and two coin processing apparatuses  3 D. The coin loading system  2 D includes one coin loading apparatus  4 D, two cassettes  5 D, one coin management apparatus  6 D, and one POS management apparatus  7 D. Note that the coin processing system  1 D may include one or three or more coin processing apparatuses  3 D. 
     The coin processing apparatus  3 D is installed at a check-out counter  10 , which is an example of a front office of a store. The coin processing apparatus  3 D is operated by a clerk or a customer himself, and is used for the determination process between the clerk and the customer. The coin processing apparatus  3 D deposits the purchase price to be paid by the customer, or dispenses the change to be paid to the customer. The coin processing apparatus  3 D is communicatively connected to a POS register not illustrated in the drawing to be operated by the clerk, or a self-checkout register not illustrated in the drawing to be operated by the customer. Note that the coin processing apparatus  3 D may be configured integrally with the POS register or the self-checkout register. 
     The coin loading apparatus  4 D, the coin management apparatus  6 D and the POS management apparatus  7 D are installed in a back office  20  of the store. The coin loading apparatus  4 D is communicatively connected to each coin processing apparatus  3 D. The coin loading apparatus  4 D dispenses the change fund to be loaded into the coin processing apparatus  3 D, or receives the proceeds from sales collected from the coin processing apparatus  3 D. The coin loading apparatus  4 D is elaborated later. 
     The coin management apparatus  6 D is communicatively connected to each coin processing apparatus  3 D and the coin loading apparatus  4 D through a LAN (Local Area Network) and the like. The coin management apparatus  6 D manages the coins stored in each coin processing apparatus  3 D and the coin loading apparatus  4 D. For example, the coin management apparatus  6 D manages coins having been subjected to the determination in each coin processing apparatus  3 D, and coins exchanged between the coin processing apparatus  3 D and the coin loading apparatus  4 D. 
     In addition, the coin management apparatus  6 D manages the standard number of the two coin processing apparatuses  3 D by using a memory unit not illustrated in the drawing. The standard number may be different for each coin processing apparatuses  3 D, or may be the same between the two coin processing apparatuses  3 D. The coin management apparatus  6 D manages the remaining coin information transmitted from the coin processing apparatus  3 D by using the memory unit. The coin management apparatus  6 D has functions similar to those of the loading number setting unit  6 B of Embodiment 3, and sets the first denomination basis loading number on the basis of the remaining coin information and the standard number. The coin management apparatus  6 D transmits the set information related to the first denomination basis loading number, to the coin loading apparatus  4 D. The POS management apparatus  7 D manages the flow of goods. 
     The cassette  5 D is configured to be detachable to the coin processing apparatus  3 D and the coin loading apparatus  4 D. The cassette  5 D is configured to exchange the coin C with the coin processing apparatus  3 D or the coin loading apparatus  4 D when the cassette  5 D is mounted to the coin processing apparatus  3 D or the coin loading apparatus  4 D. On the other hand, the cassette  5 D is configured such that the coin C inside cannot be taken out when the cassette  5 D is separated from the coin processing apparatus  3 D or the coin loading apparatus  4 D. The clerk transports the coin C between the coin processing apparatus  3 D and the coin loading apparatus  4 D by using the cassette  5 D. For example, during the loading of the change fund or during collection of proceeds from sales, the clerk transports the coin C between the coin processing apparatus  3 D and the coin loading apparatus  4 D by using the cassette  5 D. The clerk cannot touch the coin C in the cassette  5 D when the coin C is being transported. Thus, the coin C can be transported in a safe state in terms of security. Note that it is possible to adopt a configuration in which only an authorized person such as the administrator of the store is allowed to open the cassette  5 D. 
     Next, a configuration of the cassette  5 D is described.  FIG. 11A  is a top view illustrating an overall configuration of a cassette according to Embodiment 5 of the present disclosure.  FIG. 11B  is a sectional view taken along XIB-XIB of  FIG. 11A . Note that the installation and the like of each component of the cassette  5 D may be described using the direction illustrated in  FIG. 11A  and  FIG. 11B . 
     As illustrated in  FIG. 11A  and  FIG. 11B , the cassette  5 D includes a housing  51 D, a reception unit  52 D, a storage area  53 D, an ejection unit  54 D, a feeding unit  55 D, and a connector not illustrated in the drawing. 
     The reception unit  52 D receives the coin C from the coin processing apparatus  3 D or the coin loading apparatus  4 D. The reception unit  52 D includes a first inlet  521 D, a second inlet  522 D, an inlet closing member  523 D, and an inlet opening closing mechanism not illustrated in the drawing. The first inlet  521 D and the second inlet  522 D are provided in the top surface part of the housing  51 D. The first inlet  521 D is configured to receive the coin C from the coin processing apparatus  3 D. The second inlet  522 D is configured to receive the coin C from the coin loading apparatus  4 D. The inlet closing member  523 D is formed in a shape that can simultaneously close the first inlet  521 D and the second inlet  522 D. The inlet opening closing mechanism opens and closes the first inlet  521 D and the second inlet  522 D at the same time by moving the inlet closing member  523 D. 
     The storage area  53 D is an inner space of the housing  51 D. The storage area  53 D stores the coin C received at the reception unit  52 D. 
     The ejection unit  54 D ejects the coin C stored in the storage area  53 D. The ejection unit  54 D includes an outlet  541 D, an outlet closing member  542 D, and an outlet opening closing mechanism not illustrated in the drawing. 
     The outlet  541 D is provided on the lower side in the front surface part of the housing  51 D. The outlet opening closing mechanism opens and closes the outlet  541 D by moving the outlet closing member  542 D. 
     The feeding unit  55 D sends out and ejects the coin C stored in the storage area  53 D from the ejection unit  54 D. The feeding unit  55 D includes a transport mechanism  551 D, a pair of side wall parts  552 D, and a rear wall part  553 D. 
     The transport mechanism  551 D includes a transport motor not illustrated in the drawing, a drive pulley  554 D, a driven pulley  555 D, and a transport belt  556 D. The transport motor drives under the control of the coin processing apparatus  3 D or the coin loading apparatus  4 D. The drive pulley  554 D is provided at the rotation shaft of the transport motor so as to extend in the left and right direction on the front and lower sides of the cassette  5 D. The driven pulley  555 D is received by a bearing not illustrated in the drawing so as to extend in the left and right direction on the rear and lower sides of the cassette  5 D. The transport belt  556 D is provided around the drive pulley  554 D and the driven pulley  555 D. The coin C received from the reception unit  52 D is placed on the transport belt  556 D. That is, the transport belt  556 D makes up a placing part of the storage area  53 D. The pair of side wall parts  552 D is provided at both sides of the transport belt  556 D in the width direction. The rear wall part  553 D is provided on the rear side of the transport belt  556 D. 
     The connector is provided in the left surface part in the housing  51 D, for example. When the cassette  5 D is mounted to the coin processing apparatus  3 D, the connector is connected to the connector, not illustrated in the drawing, of the coin processing apparatus  3 D. When mounted to the coin loading apparatus  4 D, the connector is connected to the connector, not illustrated in the drawing, of the coin loading apparatus  4 D. When the connector is connected to the connector of the coin processing apparatus  3 D or the coin loading apparatus  4 D, feeding is performed through the connector to the components that operate with the feeding, such as the inlet opening closing mechanism, the outlet opening closing mechanism and the transport motor. When the connector is connected to the connector of the coin processing apparatus  3 D or the coin loading apparatus  4 D, the coin processing apparatus  3 D or the coin loading apparatus  4 D can control the cassette  5 D through the connector. 
     Next, a configuration of the coin processing apparatus  3 D is described.  FIG. 12  is a schematic view as viewed from the right side, illustrating an internal configuration of a coin processing apparatus according to Embodiment 5 of the present disclosure. Note that the installation and the like of each component of the coin processing apparatus  3 D may be described using the direction illustrated in  FIG. 12 . 
     As illustrated in  FIG. 12 , the coin processing apparatus  3 D includes a housing  301 D, a deposit unit  302 D, a dispense unit  303 D, a first cassette mounting unit  304 D, a storage unit  305 D, a feeding unit  306 D, a deposit transport unit  307 D, a recognition unit  308 D, a plurality of chutes  309 D, a dispense transport unit  310 D, and a control unit  311 D. 
     The deposit unit  302 D is provided on the front side in the top surface part in the housing  301 D. That is, the deposit unit  302 D is provided on the side on which the customer operating the coin processing apparatus  3 D stands. The deposit unit  302 D is configured to deposit the coin C to the coin processing apparatus  3 D. The dispense unit  303 D is provided on the upper side in front surface part in the housing  301 D. The dispense unit  303 D is configured to dispense the coin C from the coin processing apparatus  3 D. 
     The first cassette mounting unit  304 D is hidden with a cover when the cassette  5 D is not mounted, and the first cassette mounting unit  304 D is exposed when the cover not illustrated in the drawing is open. When the clerk mounts the cassette  5 D to the first cassette mounting unit  304 D, the connector of the cassette  5 D and the connector, not illustrated in the drawing, of the first cassette mounting unit  304 D are connected to each other. 
     An operation display unit  312 D is connected to the coin processing apparatus  3 D. The operation display unit  312 D is composed of a touch-screen display apparatus, and functions as an operation unit for inputting information related to the coin processing in the coin processing apparatus  3 D, and a display unit for displaying information related to the coin processing. Note that the operation display unit  312 D may be composed of a member separated from the coin processing apparatus  3 D, or may be integrated with the coin processing apparatus  3 D. The operation display unit  312 D may have a configuration in which the operation unit and the display unit are independently provided. 
     The storage unit  305 D includes a plurality of (eight, in Embodiment 5) denomination basis storage units  313 D,  314 D,  315 D,  316 D,  317 D,  318 D,  319 D and  320 D (hereinafter referred to also as “denomination basis storage units  313 D to  320 D”). The denomination basis storage units  313 D to  320 D are configured to store the coin C and to send out the stored coin C. As a mechanism for sending out the coin C of the denomination basis storage units  313 D to  320 D, a mechanism that uses a centrifugal disk that rotates in a tilted state and picks up and sends out the coin C one by one using a plurality of protrusion members provided in the outer region in the surface of the centrifugal disk may be exemplified. The denominations to be stored in the denomination basis storage units  313 D to  320 D are set in advance. 
     The feeding unit  306 D is configured to receive and send out one by one the coin C deposited from the deposit unit  302 D, and to drop the coin to the dispense unit  303 D. For the mechanism that sends out the coin C of the feeding unit  306 D, the same mechanism as that of the denomination basis storage units  313 D to  320 D may be exemplified. 
     The deposit transport unit  307 D transports the coin C sent out from the feeding unit  306 D. 
     The recognition unit  308 D, which is provided in the deposit transport unit  307 D, recognizes the denomination, authentication, fitness and the like of the coin C deposited from the deposit unit  302 D, and counts the coin C for each denomination. 
     The plurality of chutes  309 D is provided downstream of the recognition unit  308 D in the deposit transport unit  307 D in the transport direction of the coin C. The plurality of chutes  309 D is provided side by side in a line in the transport direction of the coin C. Eight chutes  321 D in the plurality of chutes  309 D are configured to guide the coin C to one of the denomination basis storage units  313 D to  320 D. One chute  322 D is configured to guide the coin C to the dispense unit  303 D. The remaining one chute  323 D is configured to guide the coin C to the cassette  5 D. Chute  309 D is normally closed with a gate not illustrated in the drawing, and guides the coin C to the above-mentioned each unit when the gate is opened. 
     The dispense transport unit  310 D is provided below the feeding unit  306 D. The dispense transport unit  310 D transports, to the feeding unit  306 D, the coin C sent out from the denomination basis storage units  313 D to  320 D. The dispense transport unit  310 D transport, to the feeding unit  306 D, the coin C ejected and dropped from the cassette  5 D. 
     The control unit  311 D controls the entire operation of the coin processing apparatus  3 D. The control unit  311 D controls the deposit process of the coin C paid by the customer during the determination of goods. When controlling the deposit process, for example, the control unit  311 D controls the feeding unit  306 D and the deposit transport unit  307 D so as to send out and transport one by one the coin C received from the deposit unit  302 D and dropped to the feeding unit  306 D. The denomination, authentication, fitness and the like of the transported coin are recognized by the recognition unit  308 D. The control unit  311 D controls the deposit transport unit  307 D and the gate on the basis of the recognition result in the recognition unit  308 D so as to eject, from the dispense unit  303 D, the coin C that cannot be deposited, as a reject coin. The control unit  311 D controls the deposit transport unit  307 D and chute  309 D so as to house, in the denomination basis storage units  313 D to  320 D by denomination, the coin C that can be deposited. 
     The control unit  311 D controls the dispense process of the coin C during the determination of goods. When controlling the dispense process, the control unit  311 D controls the denomination basis storage units  313 D to  320 D and the dispense transport unit  310 D so as to transport one by one, to the feeding unit  306 D, the coin C sent out and dropped from the denomination basis storage units  313 D to  320 D storing the coins C to be dispensed, for example. The control unit  311 D controls the feeding unit  306 D to eject the coin C to the dispense unit  303 D by opening a bottom portion  324 D of the feeding unit  306 D. 
     The control unit  311 D performs a control for initial replenishment in the storage unit  305 D with coin C stored in the cassette  5 D before the opening of the store, for example. The control unit  311 D performs a control of additional replenishment in the storage unit  305 D with the coin C to be subjected to the additional replenishment among the coins C stored in the cassette  5 D during the store operation. The control unit  311 D performs a control of collecting the coin C stored in the storage unit  305 D to the cassette  5 D after the store has been closed, for example. 
     Next, a configuration of the coin loading apparatus  4 D is described.  FIG. 13A  is a schematic view as viewed from the right side, illustrating an internal configuration of a coin loading apparatus when a coin is loaded into a cassette according to Embodiment 5 of the present disclosure.  FIG. 13B  is a schematic view as viewed from the front side, illustrating an internal configuration of the coin loading apparatus when a coin is loaded into the cassette according to Embodiment 5 of the present disclosure. Note that the installation and the like of each component of the coin loading apparatus  4 D may be described using the direction illustrated in  FIG. 13A  and  FIG. 13B . 
     As illustrated in  FIG. 13A  and  FIG. 13B , the coin loading apparatus  4 D includes a housing  401 D, a deposit unit  402 D, a second cassette mounting unit  403 D, a dispense unit  404 D, a feeding unit  405 D, a transport unit  406 D, a recognition unit  407 D, a storage unit  408 D, a plurality of upper chutes  409 D, a loading unit  410 D, and a control unit  411 D. Further, the coin loading apparatus  4 D includes a reject unit, an overflow storage unit and a counterfeit coin storage unit not illustrated in the drawing. 
     The deposit unit  402 D is provided on the front side in the top surface part of the housing  401 D. That is, the deposit unit  402 D is provided on the side on which the clerk operating the coin loading apparatus  4 D stands. The deposit unit  402 D is configured to deposit the coin C to the coin loading apparatus  4 D. 
     The second cassette mounting unit  403 D is provided on the front side in the top surface part of the housing  401 D. The second cassette mounting unit  403 D is provided next to the deposit unit  402 D. When the clerk mounts the cassette  5 D to the second cassette mounting unit  403 D, the connector of the cassette  5 D and the connector, not illustrated in the drawing, of the second cassette mounting unit  403 D are connected to each other. In addition, the housing  401 D is provided with an opening, not illustrated in the drawing, which faces the outlet  541 D of the cassette  5 D mounted to the second cassette mounting unit  403 D. The coin C ejected from the outlet  541 D of the cassette  5 D can be deposited to the coin loading apparatus  4 D through the opening. 
     The dispense unit  404 D is provided at a lower side portion inside the housing  401 D. The dispense unit  404 D includes a drawer unit that can be drawn to the front side of the housing  401 D. The clerk can put in the cassette  5 D to the drawer unit drawn to the front side, and can put out the cassette  5 D from the drawer unit. The dispense unit  404 D includes a third cassette mounting unit  412 D to which the cassette  5 D is mounted. 
     The cassette  5 D is mounted to the third cassette mounting unit  412 D. When the clerk mounts the cassette  5 D to the third cassette mounting unit  412 D, the connector of the cassette  5 D and the connector, not illustrated in the drawing, of the third cassette mounting unit  412 D are connected to each other. 
     The feeding unit  405 D is configured to receive the coin C deposited from the deposit unit  402 D and/or the cassette  5 D, so as to send out the coin one by one and/or to drop the coin to the dispense unit  404 D. A component similar to that of the denomination basis storage units  313 D to  320 D of the coin processing apparatus  3 D may be exemplified as a mechanism for sending out the coin C of the feeding unit  405 D. 
     The transport unit  406 D transports the coin C sent out from the feeding unit  405 D. 
     The recognition unit  407 D, which is provided in the transport unit  406 D, recognizes and counts the denomination, authentication, fitness and the like of the coin C deposited from the deposit unit  402 D. 
     The storage unit  408 D includes a plurality of (eight, in Embodiment 5) denomination basis storage units  413 D,  414 D,  415 D,  416 D,  417 D,  418 D,  419 D, and  420 D (hereinafter referred to also as “denomination basis storage units  413 D to  420 D”). The denomination basis storage units  413 D to  420 D are configured to store the coin C, and to send out the stored coin C. The denomination basis storage units  413 D to  416 D are provided side by side in the front-rear direction on the right side inside the housing  401 D. The denomination basis storage units  417 D to  420 D are provided side by side in the front-rear direction on the left side inside the housing  401 D. The denominations to be stored in the denomination basis storage units  413 D to  420 D are set in advance. A mechanism similar to that of the denomination basis storage units  313 D to  320 D may be exemplified as a mechanism for sending out the coins C of the denomination basis storage units  413 D to  420 D. 
     The reject unit stores, as a reject coin, the coin C recognized to be a non-processing target and/or a non-recognizable coin in the recognition unit  407 D. When the retaining amount of the coins C in the denomination basis storage units  413 D to  420 D exceeds a preset retaining amount, the overflow storage unit stores the coin C that cannot be no longer retained, as an overflow coin. The counterfeit coin storage unit stores the coin C that is recognized to be a counterfeit coin in the recognition unit  407 D. 
     The upper chutes  409 D are provided downstream of the recognition unit  407 D in the transport unit  406 D in the transport direction of the coin C. The upper chutes  409 D are provided side by side in a line in the transport direction of the coin C. The eight upper chutes  409 D are configured to guide the coin C to one of the denomination basis storage units  413 D to  420 D. In addition, although not shown in the drawings, the transport unit  406 D is provided with an upper chute not illustrated in the drawing configured to guide the coin C to the reject unit, the overflow storage unit and the counterfeit coin storage unit. The upper chute  409 D, which is normally closed with a gate not illustrated in the drawing, guides the coin C to the above-mentioned each unit when the gate is opened. 
     The loading unit  410 D includes a transport motor not illustrated in the drawing, a drive pulley  421 D, a driven pulley  422 D, and a transport belt  423 D. The transport motor is driven by a control of the control unit  411 D. The drive pulley  421 D is provided at the rotation shaft of the transport motor on the front and lower sides of the housing  401 D so as to extend in the left and right direction. The driven pulley  422 D is received at a bearing not illustrated in the drawing on the rear and lower sides of the housing  401 D as to extend in the left and right direction. The transport belt  423 D are provided around the drive pulley  421 D and the driven pulley  422 D. The transport belt  423 D is configured to guide the coin C stored in the denomination basis storage units  413 D to  420 D, to the second inlet  522 D of the cassette  5 D mounted to the third cassette mounting unit  412 D. 
     The control unit  411 D controls the entire operation of the coin loading apparatus  4 D. The control unit  411 D counts the coins C collected from the coin processing apparatus  3 D by the cassette  5 D. The control unit  411 D performs a control of replenishing the cassette  5 D with the coin C stored in the storage unit  408 D. 
     In addition, an operation display unit  424 D is connected to the coin loading apparatus  4 D. A configuration similar to the operation display unit  312 D connected to the coin processing apparatus  3 D may be exemplified as the operation display unit  424 D. The coin loading apparatus  4 D functions as an input unit for inputting information related to the coin processing in the coin loading apparatus  4 D, and a display unit that displays information related to the coin processing. 
     Coin Loading Process Using Coin Loading Apparatus Next, a coin loading process using the coin loading apparatus  4 D is described as an operation of the coin processing system  1 D.  FIG. 14  is a flowchart of a coin loading process according to Embodiment 5 of the present disclosure. 
     When the closing balance process of each coin processing apparatus  3 D is completed after the operation time of the store, the coin management apparatus  6 D acquires and manages the remaining coin information of each coin processing apparatus  3 D, for example. 
     Before the opening of the store, for example, the clerk mounts the empty cassette  5 D with the first inlet  521 D, the second inlet  522 D and the outlet  541 D closed, to the third cassette mounting unit  412 D as illustrated in  FIG. 13A  and  FIG. 13B  so as to load the cassette  5 D with the coins C for initial replenishment and additional replenishment by using the coin loading apparatus  4 D. When the cassette  5 D is mounted to the third cassette mounting unit  412 D, the coin loading apparatus  4 D starts the power feeding to the cassette  5 D through the connector of the third cassette mounting unit  412 D. The control unit  411 D of the coin loading apparatus  4 D controls the cassette  5 D to open the first inlet  521 D and the second inlet  522 D of the cassette  5 D. 
     When the clerk performs an inputting operation for starting the loading process of the coin C on the operation display unit  424 D of the coin loading apparatus  4 D in order to replenish a predetermined coin processing apparatus  3 D (hereinafter referred to also as “the coin processing apparatus  3 D to be replenished”) with the coin C, the control unit  411 D of the coin loading apparatus  4 D performs a control of transmitting the coin management apparatus  6 D to information that specifies the coin processing apparatus  3 D to be replenished. 
     The coin management apparatus  6 D acquires the remaining coin information on the coin processing apparatus  3 D to be replenished on the basis of the information from the coin loading apparatus  4 D as illustrated in  FIG. 14  (step S 41 ). 
     Next, the coin management apparatus  6 D recognizes the standard number of the coin processing apparatus  3 D to be replenished (step S 42 ). 
     Next, on the basis of the remaining coin information and standard number, the coin management apparatus  6 D sets the first denomination basis loading number of the coin processing apparatus  3 D to be replenished (step S 43 ). At this time, the coin management apparatus  6 D calculates the number obtained by subtracting the remaining number based on the remaining coin information from the standard number for each denomination, and sets the calculation result as the first denomination basis loading number. Note that a result of adding a certain margin value to the result of the subtraction may be set as the first denomination basis loading number. Thereafter, the coin management apparatus  6 D transmits information related to the first denomination basis loading number, to the coin loading apparatus  4 D. 
     When the information related to the first denomination basis loading number is acquired from the coin management apparatus  6 D, the control unit  411 D of the coin loading apparatus  4 D performs a determination process of the first denomination basis loading number (step S 44 ). For example, under the control of the control unit  411 D, the operation display unit  424 D displays the first denomination basis loading number set at the coin management apparatus  6 D. When approving the first denomination basis loading number set by the coin management apparatus  6 D, the clerk performs an inputting operation for approval on the operation display unit  424 D. When the inputting operation for approval has been performed, the control unit  411 D determines the first denomination basis loading number as the details set at the coin management apparatus  6 D. On the other hand, when not approving the first denomination basis loading number set at the coin management apparatus  6 D, the clerk performs the first inputting operation of the first denomination basis loading number desired to be set by the clerk on the operation display unit  424 D. When the first inputting operation of the first denomination basis loading number is performed by the clerk, the control unit  411 D determines the input details as the first denomination basis loading number. Note that when the first denomination basis loading number is determined as the details set at the coin management apparatus  6 D, the coins making up the first coin group C 1  will not be left over as the excess coin after the initial replenishment (but will be left over in the case where addition of a margin value has been performed). On the other hand, when the first denomination basis loading number is determined as the details input by the clerk, the coins C making up the first coin group C 1  can possibly be left over as the excess coin after the initial replenishment. 
     Next, the control unit  411 D performs a determination process of the second denomination basis loading number (step S 45 ). For example, under the control of the control unit  411 D, the operation display unit  424 D performs an indication for facilitating the second inputting operation of the second denomination basis loading number. When the clerk has performed the second inputting operation on the operation display unit  424 D, the control unit  411 D determines the second denomination basis loading number as the input details. 
     Next, the control unit  411 D performs a control of loading the first coin group C 1  for initial replenishment into the storage area  53 D of the cassette  5 D (step S 46 ). First, the control unit  411 D specifies a denomination basis storage unit storing the coin C of the denomination to be loaded first among the coins C making up the first coin group C 1  in the denomination basis storage units  417 D to  420 D, and controls the denomination basis storage unit to guide the coin C sent out from the specified denomination basis storage unit to the transport belt  423 D of the loading unit  410 D as indicated with the arrow Y in  FIG. 13B . Under the control of the control unit  411 D, the loading unit  410 D drives the transport motor, and loads the coin C guided to the transport belt  423 D, into the storage area  53 D through the second inlet  522 D. The control unit  411 D controls the denomination basis storage units  417 D to  420 D and the loading unit  410 D such that the coin C of each denomination making up the first coin group C 1  is loaded into the storage area  53 D. At this time, the loading unit  410 D may load the coin C while driving the transport belt  556 D so that the coin C is not unevenly placed on the transport belt  556 D. 
     Next, when the loading of the first coin group C 1  into the storage area  53 D is completed, the control unit  411 D performs a control of loading of the second coin group C 2  for additional replenishment into the storage area  53 D of the cassette  5 D (step S 47 ). The control unit  411 D loads the coin C of each denomination making up the second coin group C 2  into the storage area  53 D by performing the same control as that of step S 46 . At this time, the loading unit  410 D may load the coin C while driving the transport belt  556 D so that the coin C is not unevenly placed on the transport belt  556 D. 
     Through the processes of steps S 41  to S 47 , the second coin group C 2  is loaded on the first coin group C 1 , as illustrated in  FIG. 2 , for example. That is, the first coin group C 1  and the second coin group C 2  are loaded such that the second coin group C 2  is located at a position farther from the outlet  541 D than the first coin group C 1 , and that the first coin group C 1  is easily output from the cassette  5 D at an earlier timing than the second coin group C 2 . 
     When the loading process of the coin C into the cassette  5 D is completed, the control unit  411 D controls the cassette  5 D to close the second inlet  522 D of the cassette  5 D. Under the control of the control unit  411 D, the cassette  5 D closes the first inlet  521 D and the second inlet  522 D at the same time. Thereafter, the clerk removes the cassette  5 D from the coin loading apparatus  4 D. 
     Initial Replenishment Process of Coin at Coin Processing Apparatus 
     Next, an initial replenishment process of coin at the coin processing apparatus  3 D is described as an operation of the coin processing system  1 D. 
     Before the opening of the store, for example, the clerk mounts the cassette  5 D replenished with the coin C to the first cassette mounting unit  304 D of the coin processing apparatus  3 D as illustrated in  FIG. 12 . When the cassette  5 D is mounted to the first cassette mounting unit  304 D, the coin processing apparatus  3 D starts power feeding to the cassette  5 D through the connector of the first cassette mounting unit  304 D. The control unit  311 D of the coin processing apparatus  3 D controls the cassette  5 D to eject the coin C stored in the storage area  53 D. 
     Under the control of the control unit  311 D, the cassette  5 D opens the outlet  541 D and sequentially sends out the coin C stored in the storage area  53 D, from the outlet  541 D. At this time, the coins C making up the first coin group C 1  is ejected from the cassette  5 D. 
     The coin C sent out from the cassette  5 D drops to the dispense transport unit  310 D. The control unit  311 D controls the dispense transport unit  310 D to transport the coin C sent out from the cassette  5 D, to the feeding unit  306 D. The control unit  311 D controls the feeding unit  306 D and the deposit transport unit  307 D such that the coin C is sent out one by one from the feeding unit  306 D, and the coin C sent out is transported toward the recognition unit  308 D. The recognition unit  308 D recognizes the denomination of the coin C being transported. 
     On the basis of the recognition result in the recognition unit  308 D, the control unit  311 D specifies the denomination basis storage units  313 D to  320 D corresponding to the coin C whose denomination has been recognized, and determines whether the storage number in the specified denomination basis storage unit has reached the standard number. When it is determined that it has not reached the standard number, the control unit  311 D controls the denomination basis storage unit and the gate of the chute  321 D to store the coin C whose denomination has been recognized to the denomination basis storage unit corresponding to the coin C. On the other hand, when it has reached the standard number, the control unit  311 D controls the gate of the chute  323 D to return the coin C whose denomination has been recognized into the storage area  53 D through the first inlet  521 D. The control unit  311 D repeats the above-described control until the storage numbers of the coins C of all denominations for the initial replenishment in the denomination basis storage units  313 D to  320 D reach the standard number. When the storage number of the coins C of all denominations for initial replenishment has reached the standard number, the control unit  311 D terminates the initial replenishment process of the coin C and controls the cassette  5 D to close the outlet  541 D. 
     Additional Replenishment Process of Coin at Coin Processing Apparatus 
     Next, an additional replenishment process of the coin at the coin processing apparatus  3 D is described as an operation of the coin processing system  1 D. Note that descriptions for the same processes as those of the above-described initial replenishment process will be simplified. 
     For example, after performing the dispense process of the coin C (disbursement of change), the control unit  311 D determines whether there is a denomination basis storage unit whose storage number of the coin C is lower than the lower limit value in the denomination basis storage units  313 D to  320 D. The lower limit value may differ for each denomination, or may be identical for all denominations. 
     When it is determined that there is a denomination basis storage unit whose storage number of the coin C is lower than the lower limit value, the control unit  311 D performs the additional replenishment process of the coin C. The control unit  311 D controls the cassette  5 D to eject the coin C stored in the storage area  53 D. 
     Under the control of the control unit  311 D, the cassette  5 D opens the outlet  541 D and sequentially sends out the coin C stored in the storage area  53 D, from the outlet  541 D. At this time, the coin C making up the first coin group C 1  has been ejected from the cassette  5 D through the initial replenishment, and therefore the coin C making up the second coin group C 2  is ejected from the cassette  5 D. 
     The denomination of the coin C sent out from the cassette  5 D is recognized by the recognition unit  308 D. On the basis of the recognition result in the recognition unit  308 D, the control unit  311 D determines whether the coin C whose denomination has been recognized is the coin C of the denomination to be subjected to the additional replenishment. When it is determined that it is the coin C of the denomination to be subjected to the additional replenishment, the control unit  311 D controls the denomination basis storage unit and the gate of the chute  321 D to store the coin C in the denomination basis storage unit. On the other hand, when it is determined that it is not the coin C of the denomination to be subjected to the additional replenishment, the control unit  311 D controls the gate of the chute  323 D to return the coin C into the storage area  53 D. The control unit  311 D repeats the above-described control until the storage number of the coin C in the denomination basis storage unit corresponding to the denomination to be subjected to the additional replenishment becomes equal to or greater than the upper limit. The upper limit may differ for each denomination, or may be identical for all denominations. When the storage number of the coin C of the denomination basis storage unit corresponding to the denomination to be subjected to the additional replenishment becomes equal to or greater than the upper limit, the control unit  311 D terminates the control of the additional replenishment process of the coin C, and controls the cassette  5 D to close the outlet  541 D. 
     Effects of Embodiment 5 
     The Embodiment 5 achieves the following effects in addition to the same effects as the effects of Embodiment 1. When it is determined that the storage number in the denomination basis storage unit corresponding to the recognized coin C has reached the standard number in the initial replenishment, the coin processing apparatus  3 D returns the recognized coin C into the storage area  53 D. In this manner, the coin C returned into the storage area  53 D can be used as the coin C for additional replenishment. 
     Modifications of Embodiment 5 
     The loading unit  410 D and the denomination basis storage units  413 D to  420 D may load each coin C of the first coin group C 1  into the storage area  53 D such that the fewer the number of the coins of the denomination, the earlier they are output from the cassette  5 D under the control of the control unit  411 D as in Embodiment 2. The control unit  411 D may set the second denomination basis loading number based on the second ratio, or may set the first denomination basis loading number based on the first ratio as in Embodiment 4. When there is a denomination whose first and second ratios are smaller than the first and second threshold values, the operation display unit  424 D may display that fact under the control of the control unit  411 D. 
     Modifications of Embodiments 
     It goes without saying that the present disclosure is not limited to the embodiments described so far, and various variations may be added to the extent that the purpose of the disclosure is not deviated from. For example, the storage unit  41 , the loading unit  42  and the cassette  5  of the coin loading apparatuses  4 ,  4 A,  4 B and  4 C of Embodiments 1 to 4 may be configured in the same manner as the storage unit  408 D, the loading unit  410 D, and the cassette  5 D of the coin loading apparatus  4 D described in Embodiment 5. 
     In Embodiments 1 to 5, coins for additional replenishment of multiple times may be loaded into the cassettes  5  and  5 D. For example, it is possible to load coins such that after a 50 cent coin and a 1 euro coin are loaded as coins for the first additional replenishment, a 50 cent coin and a 2 euro coin are loaded as coins for the second additional replenishment. 
     In Embodiments 1 to 5, the control units  43 ,  43 A,  43 B,  43 C and  411 D control the loading process such that the first coin group C 1  and the second coin group C 2  are disposed side by side in the vertical direction, but the loading process may be controlled such that the first coin group C 1  and the second coin group C 2  are disposed side by side in the horizontal direction and that the first coin group C 1  is easily output from the cassettes  5  and  5 D at an earlier timing than the second coin group C 2 . 
     This application is entitled to and claims the benefit of Japanese Patent Application No. 2021-005157 filed on Jan. 15, 2021, the disclosure each of which including the specification, drawings and abstract is incorporated herein by reference in its entirety. 
     The present disclosure is applicable to coin loading methods, coin replenishment methods, coin loading apparatuses and coin processing systems.