JP2006085423A - Coin processing device and cash processing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coin processing device capable of enhancing the performance of a distributing mechanism thereinside and downsizing the whole device, and to provide a cash processing device, which is equipped with the coin processing device and a paper money processing device and can be dowesized. <P>SOLUTION: In the coin processing device 200, a lifter part 202 for conveying a coin and a coin distributing part 204 and a dispensed coin conveying part 208 are arranged so that a plurality of change tubes arranged in parallel can be surrounded, and a coin identifying part 203 is arranged in the middle of the lifter part 202. Also, the oscillation frequency of coil sensors is made different so that the interference of voltage waveform can be prevented from being generated. Thus, it is possible to realize highly precise detection even when adjacent coil sensors are made to approach each other, and to pack coins without considering the mutual interference of the coil sensors installed for each distribution shoot 310. As a result, it is possible to realize the miniaturization of the whole device by efficiently arranging the coin conveying parts. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a coin processing device that is connected to a main body device and performs a predetermined coin identification process, and a money processing device that includes the coin processing device and a banknote processing device.

  For example, at a gas station or the like, cash deposit / withdrawal processing is performed according to the amount of fuel supplied. However, in a self-service type gas station, the user himself / herself is responsible for everything from refueling to liquidation. Therefore, it is desirable for the user to be able to perform all operations from refueling to clearing at the place where the refueling is performed. However, since the size of the oil pump is determined to some extent with respect to the cash deposit / withdrawal process, there are restrictions on the space for incorporating the bill and coin handling device.

  Therefore, in the conventional oil supply pump, only the banknote processing device for depositing and withdrawing banknotes is mounted. When there is a small change or when clearing with coins, the clearing provided in another place The change is settled on the machine or in the store.

  The clearing machine or the like is provided with a coin processing device capable of performing change processing, and determines the denomination of the received coin and stores it according to the determined denomination. The corresponding denomination and number of coins can be paid out as change.

  In such a coin processing device, in order to reuse the received coins as change, the coin storage is provided with a denomination change tube and is stored in denomination, and prior to the denomination storage. Equipped with a sorting mechanism that sorts the coins that have been deposited. The coins sorted by the sorting mechanism are dropped into a change tube arranged so as to open at the lower part thereof and stored in denomination. And when change is required, the required number of coins is paid out one by one from the change tube of the corresponding denomination in the storage, and the paid out coins are transported to the coin withdrawal port by the coin dispensing transport unit. , Withdrawn as change.

Such a coin processing device can handle all denominations of circulating coins, and for example, has the same equipment configuration as a change machine that operates in conjunction with a cash drawer used in a supermarket or the like (for example, , See Patent Document 1).
JP 2001-351136 A (FIG. 3)

  By the way, the cash deposit / withdrawal process is required to be performed at the same fuel pump location until the settlement of the coin change as well as the banknote. Since it is only a banknote processing apparatus and a coin processing apparatus cannot be integrated together, it has to be changed from place to place, and it is very troublesome. For this reason, it is preferable to reduce the size of the coin processing device so that it can be incorporated into the money processing device.

  In particular, since the money processing device mounted on the fuel supply pump is frequently used, the sorting mechanism in the coin processing device does not clog the coins and requires the ability to be surely sorted.

  In addition, such downsizing of the coin processing device and high performance of the sorting mechanism are desired not only for the money processing device mounted on the oil supply pump but also for the vending machine, the money changer and other money processing devices. That is.

  The present invention has been made in view of such a point, and a coin processing device, a coin processing device, and a bill processing device capable of realizing high performance of an internal sorting mechanism and downsizing of the entire device, It is an object to provide a money processing device that can be downsized.

  In the present invention, in order to solve the above problem, in the coin processing device that is connected to the main body device and performs a predetermined coin identification process, a change tube that is provided so as to extend vertically and arranged in parallel in the depth direction, A lifter portion that extends vertically so as to be lined up on the front side of the change tube, and that conveys coins inserted from a coin insertion slot provided at the lower part of the front surface, and a first conveyance path that constitutes the lifter portion. A coin identifying unit that is provided in the middle and identifies a coin to be conveyed, and extends from the vicinity of the upper end of the lifter unit in the depth direction above the change tube, receives the coin from the lifter unit, conveys it, and corresponds A coin distribution part that distributes to the change tube, and extends in the depth direction below the change tube, and conveys the coins withdrawn from one of the change tubes to a coin payment outlet provided in the lower front part A coin transfer unit, and the coin distribution unit is provided for each change tube, and can advance and retreat to a second transfer path that constitutes the coin distribution unit in order to capture the corresponding coins. Corresponding to the denomination identified by the coin identification unit, the sorting chute provided for each sorting gate, guiding the coins captured by the sorting gate to the corresponding change tube, and the coin identifying unit The sorting gate is advanced into the second transport path to capture the coins, and the sorting gate that does not correspond to the denomination is retracted from the second transport path so as not to capture the coins. There is provided a coin processing device characterized by comprising a sorting gate drive control means.

  In such a coin processing device, a lifter unit for transferring coins, a coin sorting unit, and a dispensing coin transfer unit are disposed so as to surround a plurality of change tubes arranged in parallel in the depth direction. In addition, since the lifter portion is disposed on the near side of the change tube and is disposed at a position closer to the coin insertion slot, the transport length of the inserted coin is shortened. And the coin identification part is provided in the middle of the lifter part, and an identification process is performed in the process in which a coin is conveyed upwards.

  Moreover, based on the identification information of the coin identified by the coin identifying unit, the sorting gate corresponding to the denomination automatically advances to the second transport path and captures the coin. The sorting gate that does not correspond to the denomination is held in a state of being retracted from the second transport path.

  Further, in the present invention, a banknote processing apparatus and a coin processing apparatus which are integrally provided and connected to a main body apparatus for performing predetermined money processing, the banknote processing apparatus is provided with a banknote input provided at a lower front portion. A deposit banknote discriminating section for discriminating banknotes deposited from the mouth, a first safe disposed in the upper portion and collectively storing the banknotes of all denominations except for one specific denomination, A second safe which is disposed adjacent to a lower part of one safe and has a recycling function capable of storing the banknote of the specific one denomination or feeding out the stored banknote as a change; The banknote placed in the lower part of the second safe and held out from the second safe is held until reaching the required number for withdrawal, and the stored banknote is provided in the lower part of the front face. Withdrawal in a lump sum The coin processing device is provided so as to extend vertically, and a plurality of change tubes arranged in parallel in the depth direction, and vertically extended so as to be arranged in front of the change tubes, A lifter unit that conveys coins inserted from a coin slot provided in the upper part, a coin identifying unit that is provided in the middle of the first conveyance path constituting the lifter unit, and that identifies the coins to be conveyed, The upper part of the lifter part near the upper part of the change tube extends in the depth direction, receives the coins from the lifter part, conveys the coins and distributes them to the corresponding change tubes, and the lower part of the change tube A coin dispensing part that extends in the direction and conveys coins dispensed from any change tube to a coin payout outlet provided in the lower part of the front surface, and the coin distribution part is provided for each change tube. A sorting gate that is provided and can be moved forward and backward in a second transport path that constitutes the coin sorting unit to catch the corresponding coin, and is provided for each sorting gate, and is trapped by the sorting gate. A sorting chute for guiding coins to a corresponding change tube, and a sorting gate corresponding to the denomination identified by the coin identifying unit is advanced into the second transport path to capture the coins; There is provided a money processing apparatus, comprising: a sorting gate drive control means for retracting a sorting gate not corresponding to a denomination from the second transport passage so as not to catch the coin. The

  In such a monetary processing device, for the banknote processing device, a first safe that collectively mixes and stores banknotes of all denominations except for one specific denomination, and a banknote of one specific denomination. Banknotes of all denominations can be handled by only two safes, the second safe having a recycling function that can be stored and withdrawn. For this reason, the installation space of the safe part can be reduced.

  In addition, for the coin processing device, a lifter unit for transferring coins, a coin distribution unit, and a dispensing coin transfer unit are disposed so as to surround a plurality of change tubes arranged side by side in the depth direction. The lifter part is arranged at a position close to the coin slot, and the coin identifying part is arranged in the middle of the lifter part. Thereby, the flow line of the coin circulating through the inside of the coin processing apparatus is minimized.

As a result, each of the banknote processing apparatus and the coin processing apparatus can be miniaturized, and the banknote processing apparatus and the coin processing apparatus can be incorporated together even in a small installation space.
In the coin processing device, as described above, based on the identification information of the coin identified by the coin identifying unit, the sorting gate corresponding to the denomination automatically advances into the second transport path and the coin To capture.

  According to the coin processing apparatus of the present invention, a lifter part for conveying coins, a coin distribution part, and a withdrawal coin transport part are disposed so as to surround a plurality of change tubes arranged side by side, and a coin is placed between the lifter parts. Since the identification unit is provided, there is no waste in the arrangement of the coin transport unit, and the entire apparatus can be downsized. In addition, since the sorting gate corresponding to the identified coin denomination automatically advances to the second transport passage and captures the coin, the coin can be reliably guided to the corresponding change tube.

  Further, according to the money processing apparatus of the present invention, in the banknote processing apparatus, all denominations of banknotes can be handled by only two safes, and in the coin processing apparatus, components are arranged so that coins flow in the shortest distance. Therefore, each can be reduced in size, and the bill processing device and the coin processing device can be installed together in a narrow space of the main body device that handles bills and coins. And about the part of a coin processing apparatus, a coin can be reliably guide | induced to the corresponding change tube similarly to the above.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, taking as an example a money processing device that is mounted on a fuel pump installed in a self-service gas station. FIG. 1 is an explanatory view showing the appearance of the money processing apparatus.

  This money processing device 1 is connected to a main body device that controls a fuel pump, and has a function of performing cash deposit / withdrawal processing when selling gasoline in a predetermined amount unit. It is assembled with the part exposed to the customer service side. The money processing apparatus 1 has a housing 2 that accommodates a banknote processing apparatus and a coin processing apparatus, and a front door 3 is provided at an upper part of the front face so as to be opened and closed. The front door 3 is provided with a lock 4 so that it can be locked except when maintenance work is performed. A customer service portion of the banknote processing device and the coin processing device is provided in an exposed state in the lower part of the front surface of the housing 2. Since the bill processing device is accommodated in the housing 2 on the left side and the coin processing device is accommodated in the right side when viewed from the front, the bill 2 can be inserted and withdrawn on the left side below the front door 3. A mouth and a bill withdrawal port are arranged, and these bill insertion port and bill withdrawal port are covered with a cover 5 that is opened and closed by a user during use. On the right side below the front door 3, a coin insertion slot 201 and a coin payout opening / outlet through which coins can be deposited and withdrawn are arranged, and the coin payout opening is covered by a cover 6 that is opened and closed by a user during use. It has been broken.

Next, the structure of the banknote processing apparatus accommodated in this money processing apparatus 1 will be described. FIG. 2 is an internal side view showing an outline of the banknote handling apparatus.
The banknote handling apparatus 100 has a banknote insertion slot 101 for inserting banknotes one by one in the lower part of the front surface, and a banknote insertion sensor 102 is disposed at the back of the banknote insertion slot 101. This bill insertion sensor 102 is linked to a motor 103 that drives a take-in roller (not shown) for taking in the inserted bill and a motor 104 that drives a deposited bill transport unit for transporting the bill. When it is detected that the take-in is detected, the take-in roller and the deposited banknote transport unit are operated. On the downstream side of the bill insertion sensor 102, a deposited bill discriminating unit 105 is disposed. The deposited banknote discrimination unit 105 includes a plurality of sensors, and performs banknote authentication and denomination identification while the banknote transported by the deposited banknote transport unit passes. The bill insertion sensor 102 and the deposit bill discriminating unit 105 are in such a positional relationship that when the bill discriminating unit 105 starts discriminating the bill, the rear end of the bill passes through the bill insertion sensor 102. However, when the bill cannot be detected, the motor 103 is stopped so that the next bill is not taken in. Here, when the banknote conveyed is not determined to be a genuine coin by the deposited banknote discrimination unit 105, the banknote is returned to the banknote insertion slot 101 by rotating the motors 103 and 104 in reverse.

  The deposited banknote transport unit is connected to a vertical banknote transport unit that is driven by the motor 106 and transports banknotes in the vertical direction. In the vicinity of the lower part of the vertical banknote transport unit, a passage sensor 107 that detects the passage of banknotes by the movement of the gate is disposed, and detects the passage of banknotes that are determined to be genuine by the deposited banknote discrimination unit 105.

  The upper end of the vertical banknote transport unit is connected to the mixed banknote storage box 108, the middle part is connected to the thousand-yen banknote storage box 109, and the vicinity of the lower end is connected to the withdrawal / rejection bank 110 and the withdrawal holding part 111. . An intermediate portion of the vertical banknote transport unit is provided with a gate 112 for switching whether the transported banknote is directed toward the mixed banknote storage box 108 or toward the thousand yen banknote storage box 109, and the mixed banknote storage box Passing sensors 113 and 114 for detecting passage of banknotes are arranged at the entrances of 108 and the thousand-yen banknote storage 109, respectively.

  The mixed banknote storage 108 is for mixing and storing 2,000 yen, 5,000 yen, and 10,000 yen expensive banknotes, and these banknotes are not reused as change. The thousand yen banknote storage 109 is for storing the minimum amount of thousand yen banknotes, and the stored thousand yen is used for banknotes to be paid out as change. For this reason, adjacent to the thousand-yen banknote storage 109, a banknote feeding part 115 composed of a motor, a plurality of rollers, and the like, and a withdrawal banknote discrimination arranged in a conveyance path between the gate 112 and the passage sensor 114 Part 116.

  Between the mixed banknote storage 108 and the thousand-yen banknote storage 109, as a common drive source that performs these banknote storage operations and the biasing operation of the stored banknotes to the banknote feeding section 115 at the time of withdrawal. Motor 117 and position detection sensors 118 and 119 for detecting the top dead center and the bottom dead center of the movable part in the bill storing operation and the biasing operation.

  The withdrawal conveyance unit connected to the vicinity of the lower end of the vertical banknote conveyance unit includes a passage sensor 120 that detects the passage of the banknote fed out from the thousand-yen banknote storage 109, and is conveyed downstream thereof. A gate 121 that switches whether the banknote is directed toward the withdrawal reject box 110 or the withdrawal reservation unit 111, and a passage sensor that detects the passage of the banknote at the entrance of the withdrawal reject bank 110 122 is arranged. The withdrawal / rejection bank 110 is a banknote in a state where a plurality of banknotes fed out from the thousand-yen banknote storage 109 are discriminated by the withdrawal banknote discrimination unit 116, for example, a banknote of a denomination other than a thousand yen. This is for storing such banknotes when the banknote is inappropriate for withdrawal. The withdrawal holding unit 111 temporarily holds the banknotes drawn out one by one from the thousand-yen banknote storage 109 until the required number is reached, and when the necessary number of banknotes is collected, Those banknotes are bundled and conveyed to the banknote dispensing port 123 by a dispensing conveyance unit driven by a motor 106. Between the withdrawal holding part 111 and the banknote withdrawal port 123, a passage sensor 124 for detecting the passage of the withdrawal banknote and the withdrawal of the withdrawal banknote by the user, and the banknote withdrawal port 123 are provided. And a shutter 125 for opening and closing. The withdrawal holding unit 111 conveys the bundle of banknotes held to the banknote dispensing port 123 by pressing the bundle of banknotes against the delivery belt of the withdrawal delivery unit. Therefore, the withdrawal holding unit 111 includes a withdrawal bill pressing unit 126 that presses the bill against the transport belt. The withdrawal bill pressing unit 126 reciprocates in the direction of contacting and separating with respect to the bills held by the cam mechanism interlocked with the reverse rotation operation of the motor 103 using the motor 103 used for taking in the deposited bills as a drive source. It can be done. The position in the banknote pressing state and retracted state of the withdrawal banknote pressing part 126 is configured to be detected by position sensors 127 and 128 arranged in the approaching / separating direction.

  The banknote processing apparatus 100 further includes a sensor 129 that detects the presence or absence of banknotes stored in the mixed banknote storage 108, a sensor 130 or 131 that detects the presence or absence of banknotes stored in the thousand-yen banknote storage 109, and a withdrawal rejection. The sensor 132 which detects the presence or absence of the banknote stored in the store | warehouse | chamber 110, and the sensor 133 which detects the presence or absence of the banknote stored in the withdrawal reservation part 111 are provided.

Next, the configuration of the coin processing device will be described. FIG. 3 is an internal side view showing an outline of the coin processing device.
The coin processing device 200 has a coin insertion slot 201 at the lower part of the front surface thereof, and is provided in the middle of the transfer path of the lifter section 202 and a lifter section 202 that conveys the inserted coins upward, behind the coin insertion slot 201. A coin discriminating unit 203 for discriminating the authenticity of the coins and identifying the denominations, a coin sorting unit 204 for sorting the coins for each denomination while transporting the identified coins, and a coin for storing the sorted coins for each denomination A storage unit 205, a payout mechanism unit 206 for controlling the withdrawal of coins from the coin storage unit 205, and a withdrawal coin transport unit for transporting coins withdrawn from the coin storage unit 205 to a coin payout outlet 207 provided in the lower front portion 208 is provided.

  A roller 209 is provided in the vicinity of the coin insertion slot 201 to draw in the inserted coin and deliver it to the lifter unit 202. The roller 209 is driven by a motor 210 and a power transmission unit (not shown). The motor 210 is driven when a detection sensor 211 provided in the vicinity of the coin slot 201 detects the insertion of money. In addition, a shutter 212 that can close the coin slot 201 and a solenoid 213 that drives the shutter 212 are provided in the vicinity of the coin slot 201. The shutter 212 is normally open, and closes the coin slot 201 based on a predetermined condition such as when a problem such as failure or clogging occurs inside the apparatus, and prohibits coins from being inserted.

  The lifter unit 202 includes a plurality of pulleys (not shown) arranged in the vertical direction and a conveyor belt 214 (first conveyor belt), and the pulley arranged at the top is driven by a motor 215 (first drive unit). By being driven, the coins inserted into the coin insertion slot 201 are conveyed upward. The coin identifying unit 203 and the reject gate 216 are arranged in the middle of the transport path of the lifter unit 202. The reject gate 216 is driven by a solenoid 217 to capture a coin that could not be identified as a true coin by the coin identifying unit 203 and deliver it to the reject chute 218. At the lower end of the chute 218, a detection sensor 219 is provided for detecting the coin that has dropped the chute 218. The output of the detection sensor 219 can be used to confirm that the coin has been rejected. The details of the lifter unit 202 will be described later.

  In the coin sorting unit 204, a plurality of sorting gates 220 for each denomination are arranged in parallel in the horizontal direction (depth direction) above the coin storage unit 205, and the conveyor belt 221 is opposed to these sorting gates 220. Has been placed. The conveyor belt 221 is stretched over pulleys arranged on the front side (left side in the figure) and the back side (right side in the figure) of the coin processing device, and is directly connected to the pulley on the front side of the coin processing device. The pulley is configured such that the power of the motor 222 is transmitted to the pulley via a timing belt or the like. The transport belt 221 receives the coins transported upward by the lifter unit 202 and transports them to the back side, and each sorting gate 220 passes the corresponding coins when they are transported. In addition, coil sensors 223 that detect coins that pass through the respective sorting gates 220 and are accommodated in the coin accommodating unit 205 are provided in the vicinity of the respective sorting gates 220. The coil sensor 223 is configured by incorporating a magnetic coil into a ferrite core. The number of coins that have passed through each sorting gate 220 can be counted using the output of the coil sensor 223. In addition, a detection sensor 224 that detects that a coin has been transferred is provided in the transfer path in front of the foremost sorting gate 220. With the detection sensor 224 detecting a coin as a trigger, the denomination sorting gate 220 corresponding to the coin is opened. Details of the structure of the sorting gate 220 will be described later.

  The coin storage part 205 is composed of two coin storage cassettes 225 and 226 in which a plurality of change tubes or the like provided so as to extend vertically are arranged in the depth direction. The front coin storage cassette 225 has three change tubes for storing 1 yen, 10 yen, and 100 yen respectively from the front side, and the back coin storage cassette 226 has 5 yen, 50 yen, It has three change tubes each accommodating 500 yen, and an overflow box arranged on the back side (right side in the figure). Each change tube is connected at its upper end to a corresponding denomination sorting gate 220. A fullness detection sensor 227 is provided at the upper end of each change tube to detect that the coin is full. And the coin which overflowed when the change tube was full is accommodated in an overflow warehouse in a denomination mixed state. A detection sensor 228 for detecting that the coin storage cassette 225 is set in the coin processing apparatus 200 is provided on the near side of the center of the coin storage cassette 225 in the vertical direction. On the back side, a detection sensor 229 for detecting that the coin storage cassette 226 is set in the coin processing apparatus 200 is provided.

  The payout mechanism 206 controls the operation of a payout plate, which will be described later, provided at the bottom of each change tube by the driving force of the motor 230, and collects the lowest coin stored in the change tube of the selected denomination. Pay out one by one. That is, the payout mechanism 206 is provided with a solenoid 231 corresponding to each change tube for designating a denomination to be withdrawn during a coin payout operation. A detection sensor 232 that detects the position of a payout plate or the like is provided on the lower front side of the coin storage cassette 225. When the solenoid 231 performs the payout operation, only the one corresponding to the denomination to be withdrawn operates to pay out the coin from the change tube, and should not be withdrawn during the coin storage operation and the payout operation. The one corresponding to the denomination does not work.

  The dispensing coin transport unit 208 is disposed at the bottom of the dispensing mechanism unit 206 and extends in the depth direction, and includes a transport belt 233, a pulley, and a motor 234 that transport coins dispensed from each change tube to the coin dispensing outlet 207. Has been. A coil sensor 235 is provided on the lower surface of the conveyor belt 233 at a position corresponding to each change tube so that it can be detected from which change tube the coin has been paid out.

  Next, the structure near the lifter part of the above-described coin processing device will be described in detail. FIG. 4 is an explanatory view showing the structure of the lifter portion and the vicinity thereof, corresponding to the portion A of FIG. FIG. 5 is an explanatory diagram illustrating a conveyance path of the lifter unit. 6 is a partially enlarged view of the lower periphery of the lifter portion viewed from the left side of FIG. 4, and FIG. 7 is a side view of the lifter portion viewed from the right side of FIG.

As shown in FIG. 4, a frame 240 in which the above-described roller 209, lifter unit 202, and the like are disposed is provided in the vicinity of the front surface portion of the coin processing apparatus 200.
As shown in FIG. 5, the frame 240 has a plurality of guides 240b formed by punching a stainless steel plate and screwed to a transport plate 240a formed by punching a stainless steel plate into a predetermined shape along the coin transport path. The transport plate 240a and the guide 240b are configured to form a transport path 241 (first transport path) having a concave cross section extending vertically. The conveyance path 241 is opened forward in the lower part (left side of the lower end in the figure) to form a coin slot 201, and is opened rearward in the upper part (right side of the upper end in the figure) and connected to the coin sorting unit 204. The transport passage 241 has a sliding surface 242 that extends upward from the vicinity of the coin insertion slot 201 with a width larger than the diameter of a coin that can be inserted, and side walls 243 that extend along both ends in the width direction. Since the sliding surface 242 and the side wall 243 are buffed and nitrided, the inserted coin M can be smoothly guided, and the surface of the coin M is damaged when the coin M is conveyed. Is prevented. A coin discriminating section 203 having a plurality of coil sensors 203a for identification is disposed slightly behind the intermediate position of the conveyance path 241 (right side in the figure), and each coil sensor 203a is provided with a predetermined sliding surface 242. Opposite the position. In addition, a reject hole 244 connected to the chute 218 is formed on the slightly front side (left side in the figure) above the coin identifying unit 203 of the transport passage 241, and the reject gate 216 bridges the reject hole 244. Is provided. The conveyance path 241 extends from the lower side to the upper side with substantially the same width, but its axis is displaced to the back side at the position of the coin recognition unit 203 and returns to the front side at the position of the reject hole 244 and above. Is displaced.

  The reject gate 216 has a rotating shaft 245 provided at the upper end thereof so as to bridge the reject hole 244 in the width direction, and plate-like arm portions 246 are parallel to each other from both sides except the center of the rotating shaft 245. It extends downward. Both ends of the rotation shaft 245 are rotatably supported by support holes provided in the side wall 243, and a central portion of the rotation shaft 245 extends downward from a portion of the upper sliding surface 242. Is rotatably supported. At the lower end of each arm portion 246, a protrusion 249 that fits into a recess 248 provided on the side wall is provided. The reject gate 216 is supported so as to be fitted in the reject hole 244, and the surface of each arm portion 246 is located on the same plane as the surface of the sliding surface 242 when the projection 249 is fitted in the recess 248. It is like that. When the coin identification unit 203 cannot identify the coin M as a genuine coin, the above-described solenoid 217 drives the reject gate 216 so as to rise from the sliding surface 242, and the coin M is conveyed on the back surface. While blocking, it is dropped onto the chute 218 through the reject hole 244.

In the vicinity of the coin insertion slot 201 of the frame 240, an insertion hole 250 for exposing the roller 209 to the conveyance path 241 side is formed.
As shown in FIG. 6, a roller 209 is provided adjacent to the frame 240 in the vicinity of the coin slot 201 of the coin processing device. The roller 209 is supported at both ends of a shaft by a bearing member 251 adjacent to the frame 240 and is driven to rotate by the motor 210 described above. This roller 209 has a part of its peripheral surface exposed to the insertion hole 250 of the frame 240, and abuts against the portion of the coin M inserted from the coin insertion slot 201, and this is brought to the lifter unit 202 side by frictional force. Transport.

  As shown in FIG. 7, the lifter unit 202 has eight pulleys 261 to 268 in order from the lower side, and a conveyor belt 214 is disposed around these pulleys. The conveyor belt 214 is configured as a V-belt belt in which a protrusion 269 having a V-shaped cross section is continuously formed on the inner periphery thereof, and extends substantially parallel to the sliding surface 242. Then, the pulley 268 arranged at the top is driven by the motor 215 described above, thereby rotating the conveyor belt 214 in the direction of the arrow in the figure.

  The lowermost pulley 261 and the uppermost pulley 268 located at both ends are provided at positions spaced apart from the sliding surface 242 of the frame 240 by a predetermined distance, and constitute a coin M introducing portion and a leading portion, respectively. A pulley 262 adjacent to the pulley 261 and a pulley 267 adjacent to the pulley 268 are arranged at a position closest to the sliding surface 242. When the coin M is received by the lifter unit 202, the coin M is transferred to the conveyor belt. Close contact with 214. The pulleys 263, 264, and 266 are disposed at a position slightly separated from the sliding surface 242 than the pulleys 262 and 267, and the pulleys 263, 264, and 266 are arranged on the conveyor belt 214 that is applied to the coins M that are conveyed between the pulleys 262 and 267. Adjust the tension (pressing force). Further, a tension spring 270 is provided at the lower part of the lifter unit 202, whereby a predetermined pressing force is applied to a holding member (not shown) of the pulley 261 at the lower end, thereby causing the longitudinal direction (up and down) of the conveyor belt 214. Direction) tension is adjusted.

  In addition, a plurality of fitting grooves that mesh with the protrusions 269 are continuously provided on the outer periphery of the central pulley 265 so that the conveyance belt 214 can be prevented from slipping and stable conveyance can be realized. Yes. The central pulley 265 is connected to a dial 265a at a position protruding from the conveyor belt 214. If there is a failure in the lifter unit 202, the conveyor belt 214 is manually moved by turning the dial 265a. Can be turned in.

  FIGS. 8A and 8B are explanatory diagrams showing the structure around the pulley and the operation of the lifter portion, where FIG. 8A shows the state when no coin is being conveyed, and FIG. 8B is when the coin is being conveyed. Represents the state. The pulley structure represents the structure of the pulleys 262 to 267 described above, but here, the structure around the pulley 262 will be described as a representative.

  As shown in FIG. 8A, the pulley 262 is rotatably supported around a short shaft 271 having a predetermined length, and the short shaft 271 is supported by a bearing member 272 fixed to the frame 240. ing.

  That is, a pair of bearing pads 273 whose sliding surfaces are surface-treated is fixed to one end side of the short shaft 271, and a cylindrical pulley 262 is extrapolated therebetween. A locking ring 274 is fixed to the other end of the short shaft 271, and the locking ring 274 is locked to the outer edge of an oval support hole 275 provided on the side wall of the bearing member 272. This prevents the pulley 262 from falling off. The width of the support hole 275 is substantially equal to the diameter of the short shaft 271 and the length in the vertical direction is longer than that.

  The bearing member 272 is provided with a presser spring 276 that biases the short shaft 271 downward, and a resin holder 277 for holding the presser spring 276 between the short shaft 271 and the holder 277. A short shaft 271 is inserted through a lateral hole 278 that passes through the shaft.

  As shown in FIG. 8B, during the transfer of the coin M, the pulley M 262 is pushed up because the coin M is interposed between the transfer belt 214 and the sliding surface 242. At this time, the short shaft 271 is pushed up against the force of the presser spring 276. However, since the support hole 275 is vertically long, the short shaft 271 tilts as indicated by an arrow in the drawing with the vicinity of the support hole 275 as a fulcrum. In this state, the pulley 262 rotates around the short shaft 271 to guide the conveyance belt 214.

  In particular, as shown in FIG. 5, the coin M is transported while being displaced toward the back side and the near side of the coin processing device in the transport process by the lifter unit 202 due to the shape of the transport path 241 described above. That is, the coin M delivered to the conveyor belt 214 at the lower end portion of the conveyance path 241 is displaced to the back side at the position of the coin identification unit 203 and is guided at a fixed position along the side wall 243 on the near side. As a result, the coin identifying unit 203 can ensure the positional accuracy of the coin M at the time of identifying the denomination and authenticity, and can perform a highly accurate identification process. Further, when the coin M passes through the coin identifying unit 203, it is guided along the back side wall 243 and returns to the near side. As a result, since the distance in the depth direction when the coin M is delivered to the coin sorting unit 204 can be increased, the arrangement space for the coil sensor 223 and the like can be afforded, and the coin processor can be made compact in the depth direction. be able to.

  Next, the structure in the vicinity of the coin sorting unit of the above-described coin processing apparatus will be described in detail. FIG. 9 is an explanatory diagram corresponding to the portion B in FIG. 3 and showing the structure of the coin distribution portion and the vicinity thereof. FIG. 10 is an explanatory diagram illustrating a structure in a state in which the coin distribution unit is viewed from above.

  As shown in FIG. 9 and FIG. 10, the coin sorting unit 204 is provided so as to extend in the depth direction (left and right direction in the figure) above the coin containing cassettes 225 and 226 from the vicinity of the upper end of the lifter unit 202. The coins M received from the lifter unit 202 are conveyed and distributed to the corresponding change tubes.

  Nine pulleys 281 to 289 are arranged in parallel in the coin distribution unit 204 from the front side in the depth direction, and a conveyor belt 221 (second conveyor belt) is disposed around these pulleys. In addition, six sorting gates 220 corresponding to the change tubes of the coin storage cassettes 225 and 226 are arranged in parallel along the transport belt 221. The plurality of sorting gates 220 are supported by guide members 290 that extend in parallel with the conveyor belt 221 above the plurality of sorting gates 220. Each sorting gate 220 has a conveying guide surface 291 (sliding surface) located on the same plane as the sliding surface 242 of the frame 240 described above at a retracted position to be described later, and along this conveying guide surface 291. The coin M is guided smoothly.

  The conveyor belt 221 is configured as a V-belt belt similar to the conveyor belt 214 described above, and extends substantially parallel to the sliding surface 242 and the conveyance guide surface 291. The width of the conveyance path (second conveyance path) formed by each of the sliding surface 242 and the conveyance guide surface 291 is larger than the diameter of the coins that can be inserted. Then, the pulley 281 arranged on the most front side is driven by the above-described motor 222 (second drive unit), thereby rotating the transport belt 221 in the direction of the arrow in FIG.

  The pulley 281 on the foremost side is provided at a position spaced apart from the sliding surface 242 of the frame 240 by a predetermined distance, and forms an introduction portion for the coin M. A pulley 282 arranged side by side on the downstream side in the transport direction of the pulley 281 is disposed at a position close to the sliding surface 242, and further, the downstream pulleys 283 to 288 are transport guides between the adjacent sorting gates 220. The tension (pressing force) of the conveyor belt 221 that is disposed at a position close to the surface 291 and applied to the coin M to be conveyed is adjusted. In addition, a tension spring 292 is provided above the pulley 281 so that a predetermined pressing force is applied to a holding member (not shown) of the pulley 281 so that the pulley 281 is stretched between the pulley 281 and the pulley 289. The tension of the conveyor belt 221 is adjusted. In such a coin sorting unit 204, the coin M transported by the transport belt 214 of the lifter unit 202 is transferred to the transport belt 221 at the upper end position of the transport belt 214, where the direction is changed by 90 degrees to the back. To the side.

  FIG. 11 and FIG. 12 are explanatory diagrams showing the structure and operation around the sorting gate of the coin sorting unit, and correspond to the CC direction arrow view of FIG. FIG. 11 shows a state when there is no coin, and FIG. 12 shows a conveyance state when there is a coin.

  As shown in FIG. 11, the sorting gate 220 is made of a resin material, and is supported by a guide member 290 so as to be able to advance and retreat toward the conveyance path side, and on the distal end side (right end side in the drawing) of the upper wall 301. A guide wall 302 provided parallel to the conveyance belt 221, a rear wall 303 provided on the rear end side of the upper wall 301, and these upper wall 301, guide wall 302 and rear wall 303 on the downstream side in the conveyance direction. It has a stopper wall 304 provided at a right angle at the end, and is open on the upstream side and the lower side in the transport direction (see FIGS. 14 and 15).

  The outer surface of the guide wall 302 of the sorting gate 220 forms a guide surface 291 for transporting coins downstream along the transport path, and the inner surface of the guide wall 302 and the inner surface of the stopper wall 304 are captured coins. The catching guide surface 305 is configured to guide the water toward the sorting chute. At the center position in the vertical direction of the guide wall 302, when the sorting gate 220 advances to the transport path side, the peripheral end portions of the transport belt 221 and the pulley 284 (the pulley 284 is illustrated as a representative in the figure) are arranged. A slit 306 that can be partially inserted is formed along the longitudinal direction of the conveyor belt 221. The slit 306 communicates with a slit 307 having a predetermined depth formed on the distal end side of the stopper wall 304. A specific operation of the sorting gate 220 at the time of capturing the coin will be described in detail later.

  On the rear wall 303 of the sorting gate 220, a coil spring 308 (biasing means) for biasing the sorting gate 220 in the direction of retreating from the conveyance path, and a biasing force of the coil spring 308 are provided. A solenoid 309 that is operated to the side that advances to the conveyance path against this is connected. This solenoid 309 is fixed to the apparatus main body of the coin processing apparatus 200 and is disposed so as to be accommodated inside the sorting gate 220.

  Each solenoid 309 is driven and controlled by a microcomputer (not shown) (hereinafter referred to as “microcomputer”: corresponding to a distribution gate drive control means) provided in the money processing apparatus. This microcomputer outputs a drive command signal only to the solenoid 309 corresponding to the denomination based on the denomination information identified by the coin identifying unit 203. For this reason, the sorting gate 220 corresponding to the denomination identified by the coin identifying unit 203 advances to the transport passage and tries to capture the coin, but the sorting gate 220 that does not correspond to the denomination moves from the transport passage. The retreated coin is held at the transfer position, and the coin is interposed between the transfer guide surface 291 and the transfer belt 221 and guided downstream in the transfer direction.

  A sorting chute 310 is provided so as to partition the guide wall 302 of the sorting gate 220 and the solenoid 309. The sorting chute 310 has an inclined surface that is inclined downward and connected to the upper end opening of the corresponding change tube, and guides the coins captured by the distribution gate 220 to the change tube. On the back surface of the sorting chute 310, a coil sensor 223 that detects that a coin has passed is provided. The coil sensor 223 is provided for each distribution chute 310, and is configured such that the oscillation frequencies of the coil sensors 223 are different from each other and the resonance frequency is excluded. Details of each coil sensor 223 will be described later.

  The pulley 284 facing the sorting gate 220 is rotatably supported around a short shaft 321 of a predetermined length that stands up and down, and the short shaft 321 is fixed to the frame 322 of the apparatus main body. The bearing member 323 is supported.

  That is, a pair of bearing pads 324 whose sliding surfaces are surface-treated is fixed to one end side of the short shaft 321, and a cylindrical pulley 284 is extrapolated therebetween. A locking ring 325 is fixed to the other end of the short shaft 321, and the locking ring 325 is locked to an outer edge portion of an oval support hole 326 provided on the side wall of the bearing member 323. This prevents the pulley 284 from falling off. The support hole 326 has a width substantially equal to the diameter of the short axis 321 and a length longer than that.

  The bearing member 323 includes a presser spring 327 (second urging means) that urges the short shaft 321 toward the sorting gate 220 and a resin made to hold the presser spring 327 between the short shaft 321. Holder 328 is provided, and a short shaft 321 is inserted into a lateral hole 329 that passes through the holder 328.

  Further, the frame 322 is provided with a coin regulation guide 329 that guides while supporting the periphery of the conveyed coin from below. The tip portion 330 of the coin regulation guide 329 has an end surface that is inclined downward toward the sorting gate 220 so as to support a part of the periphery of the coin when the sorting gate 220 is in the retracted position ( (See FIG. 12). In the frame 322 and the coin regulation guide 329, insertion holes 331 and 332 are provided at positions corresponding to the support holes 326 of the bearing member 323 so that the lower end portion of the short shaft 321 can swing.

  As shown in FIG. 12, during the transfer of the coin M, since the coin M is interposed between the transfer guide surface 291 of the sorting gate 220 and the transfer belt 221, the pulley 284 is caused by the reaction force. Pressed. At this time, the short shaft 321 is pushed against the force of the presser spring 327. However, since the support hole 326 is vertically long, the short shaft 321 tilts as indicated by an arrow in the drawing with the vicinity of the support hole 326 as a fulcrum. In this state, the pulley 284 rotates around the short shaft 321 to guide the conveyance belt 221. When the coin M passes and is conveyed downstream in the conveying direction, the short shaft 321 returns to the standing state shown in FIG. 11 by the biasing force of the presser spring 327.

  Next, the operation of the sorting gate that captures the coins transported through the transport path will be described. FIG. 13 is an explanatory view showing the operation of the sorting gate, and is a side sectional view corresponding to FIG. FIG. 14 is a plan view showing the operation of the sorting gate, and FIG. 15 is a front view thereof.

  When a corresponding coin is identified by the coin identifying unit 203 and a drive command signal is output from the microcomputer, as shown in FIG. 13, the solenoid 309 is turned on to drive the sorting gate 220 to the side that advances into the transport path. .

  As shown in FIGS. 14 and 15, when the sorting gate 220 captures the coin M, while the coin M is on the upstream side in the transport direction, the transport belt 221 is inserted through the slits 306 and 307, Pressing in the advance direction, a gap S in the advance direction is formed between the sorting gates 220 adjacent to the upstream side in the transport direction.

  When the coin M is conveyed, the coin M is received in the gap S and guided along the capture guide surface 305, and the coin M is dropped onto the sorting chute 310 as shown in FIG. Lead to the change tube. When the coin M passes the sorting chute 310, the coil sensor 223 detects the passage.

Next, the coil sensor arranged on the sorting chute will be described in detail.
First, before entering the main topic, the configuration and operation of a general coil sensor and problems in applying this to the coin processing apparatus of the present embodiment will be described. FIG. 16 is a block diagram showing a configuration of a general coil sensor, and FIG. 17 is a conceptual diagram showing a detection method of the coil sensor. FIG. 18 is an explanatory diagram showing an example of the waveform output of the coil sensor, and FIG. 19 is an explanatory diagram showing a problem with an actual waveform.

  Generally, a metal detection device that detects a general metal, a distance measurement device that measures the relative distance between metals, a proximity sensor device that determines the presence or absence of metal at a close position, and a coin processing that detects coins that circulate inside A coil sensor as shown in FIG. 16 is used for the apparatus. The coil sensor includes an oscillation circuit 343 including, for example, a magnetic coil 341 and an oscillation control circuit 342, and a peak hold rectification circuit 344 that rectifies the output from the oscillation circuit 343 and holds the peak value of the waveform. . The oscillation circuit 343 is configured as a so-called LC Colpitts type oscillation circuit, and the oscillation control circuit 342 includes a capacitor and an active element. Based on the level output from the peak hold rectifier circuit 344, the presence / absence of metal is determined.

  That is, as shown in FIG. 17, when the metal 345 approaches the magnetic coil 341, the inductance (L component) and internal resistance of the magnetic coil 341 change according to the distance l, and the amplitude of the voltage waveform due to oscillation changes. . Specifically, assuming that the level output when metal is not detected is FIG. 18A, when the metal is detected, the amplitude of the voltage waveform becomes small as shown in FIG. 18B, for example. The peak value of the waveform changes. In the example shown in the figure, the lower limit peak of the waveform is held, and the peak value rises when metal is detected. However, the upper limit peak of the waveform may be held. This coil sensor detects the presence or absence of the metal 345 by detecting the change in the level output via the oscillation circuit 343 and the peak hold rectification circuit 344.

  Also in the coin processing apparatus 200 of the present embodiment, a coil sensor based on such a principle is used. However, when the coil sensors having the same characteristics are arranged as they are in the adjacent distribution chutes 310, a resonance phenomenon occurs due to the same oscillation frequency. Specifically, as shown in the detected waveform of FIG. 19A and its enlarged view (B), an extra level fluctuation (ripple) occurs in the voltage waveform, and the detection accuracy of the coil sensor is reduced. In addition, problems such as malfunctions occur. Therefore, in the coin processing device 200, the oscillation frequency of the oscillation circuit of each coil sensor is individually set so that the above-described level fluctuation does not occur even if the coil sensors are provided adjacent to each other. Details will be described later.

  Next, the configuration and operation of the coil sensor used in the coin processing device of the present embodiment will be described. FIG. 20 is a circuit diagram showing the configuration of the coil sensor of the present embodiment. Here, for convenience of explanation, three adjacent coil sensors 350, 360, and 370 corresponding to a part of the coil sensor 223 are displayed.

  The coil sensor 350 includes an oscillation circuit 353 including a magnetic coil 351 and an oscillation control circuit 352, and a peak hold rectification circuit 354 that rectifies the output from the oscillation circuit 353 and holds the peak value of the waveform.

  The oscillating circuit 353 is configured as a so-called LC Colpitts type oscillating circuit. The oscillating circuit 353 receives the power supply voltage Vcc and sets the oscillation frequency of the output voltage and the capacitors C11 and C12. And a comparator U11 for outputting a predetermined pulse, resistors R11 and R12 for adjusting the amplitude (gain) of the voltage waveform to be oscillated, and resistors R13 and R14 for setting a reference voltage.

  The peak hold rectifier circuit 354 receives the power supply voltage Vcc, charges and discharges the capacitor C13, the resistors R15 and R16 that set the charge amount and discharge amount of the capacitor C13, respectively, and the output voltage output from the oscillation circuit 353. The comparator U12 prevents the set voltage to be fed back from being exceeded, and the capacitor C14 and the resistor R17 form a low-pass filter that removes high-frequency components of the output voltage.

Similarly, the coil sensor 360 includes an oscillation circuit 363 including a magnetic coil 361 and an oscillation control circuit 362, and a peak hold rectification circuit 364.
The oscillating circuit 363 receives the power supply voltage Vcc and compares the reference voltage with the magnetic coil L2 and capacitors C21 and C22 that set the oscillation frequency of the output voltage and the 180-degree phase feedback, and outputs a predetermined pulse. Comparator U21, resistors R21 and R22 for adjusting the amplitude of the voltage waveform to be oscillated, and resistors R23 and R24 for setting a reference voltage.

  In addition, the peak hold rectifier circuit 364 feeds back the capacitor C23 that receives and charges the power supply voltage Vcc, the resistor R25 and the resistor R26 that respectively set the charge / discharge amount, and the output voltage that is output from the oscillation circuit 363. A comparator U22 that prevents the set voltage from being exceeded, and a capacitor C24 and a resistor R27 that form a low-pass filter that removes high-frequency components of the output voltage are provided.

Further, the coil sensor 370 similarly includes an oscillation circuit 373 including a magnetic coil 371 and an oscillation control circuit 372, and a peak hold rectification circuit 374.
The oscillation circuit 373 receives the power supply voltage Vcc, sets the oscillation frequency of the output voltage, and compares the reference voltage with the magnetic coil L3 and capacitors C31 and C32, the output voltage subjected to 180-degree phase feedback, and outputs a predetermined pulse. A comparator U31 for adjusting the amplitude of the voltage waveform to be oscillated, and resistors R33 and R34 for setting a reference voltage.

  In addition, the peak hold rectifier circuit 374 feeds back the output voltage output from the capacitor C33 that receives and charges and discharges the power supply voltage Vcc, the resistor R35 and the resistor R36 that respectively set the charge / discharge amount, and the oscillation circuit 373. A comparator U32 that prevents the set voltage from being exceeded, and a capacitor C34 and a resistor R37 that form a low-pass filter that removes high-frequency components of the output voltage are provided.

  In order to vary the oscillation frequency of each coil sensor, the inductance of the magnetic coil and the capacitance of the capacitor in each oscillation circuit are set to be different from each other. That is, the inductances of the magnetic coils L1, L2, and L3, the capacitances of the capacitors C11, C21, and C31 and the capacitances of the capacitors C12, C22, and C32 in FIG. Yes.

  Therefore, the oscillation frequencies of the coil sensors 350, 360, and 370 are f1, f2, and f3 shown in the following formulas (1), (2), and (3), respectively. In the following formula, the same reference numerals as those of the magnetic coils and the capacitors are used for the inductances and the capacitances.

  Here, in the present embodiment, the oscillation frequency of each coil sensor is a frequency of 1 / n (n is an integer) of the ripple generation region before and after the set frequency of the other coil sensor and the set frequency of the other coil sensor. And the inductance of a magnetic coil and the electrostatic capacitance of a capacitor | condenser are set so that it may be excluded from the ripple generation | occurrence | production area | region before and behind that.

  21 and 22 are explanatory diagrams showing the degree of influence of frequency interference. FIG. 21 shows an experimental result of measuring the ripple amount by fixing the oscillation frequency of one coil sensor (set frequency: 357 kHz) and changing the oscillation frequency of one coil sensor adjacent to the coil sensor in the vicinity thereof. It is a graph. FIG. 22 shows an experimental result of measuring the ripple amount by fixing the oscillation frequency of the coil sensor (setting frequency: 357 kHz) and changing the oscillation frequency of one adjacent coil sensor in the entire frequency range assumed to be set. It is a graph showing.

  According to FIG. 21, when the oscillation frequency of the adjacent coil sensor coincides with the set frequency 357 kHz, the ripple amount has a peak, and the ripple is generated even in the frequency region of 2.3% before and after that. I understood. Further, FIG. 22 shows that interference is also observed in the vicinity of a frequency 1 / n (n is an integer) of the set frequency.

  Based on the above results, in the coin processing apparatus 200, the oscillation frequency of each coil sensor is 2.3% before and after the set frequency of the other coil sensor, and 1 / of the set frequency of the other coil sensor. The inductance of each magnetic coil and the capacitance of each capacitor were set so as to be excluded from the frequency of n (n is an integer) and the frequency region of 2.3% before and after that.

  Returning to FIG. 3, in the coin processing device configured as described above, when a denomination coin in the coin insertion slot 201 is inserted, the coin is drawn by the roller 209 and transferred to the lifter unit 202. The lifter unit 202 conveys the transferred coins upward. In the middle of the conveyance, the coin is identified by the coin identification unit 203, and if it is a genuine coin, it is conveyed as it is to the coin sorting unit 204. If it is a fake coin, the reject gate 216 switches the conveyance path and passes through the reject chute 218. It is dropped on the conveyor belt 233 and returned to the coin payout exit 207.

  On the other hand, the coins transported to the coin sorting unit 204 are sandwiched between the sliding surface of the transport passage and the transport belt 221 and transported to the back side of the coin processing apparatus in an upright state. Before the coin reaches the sorting gate 220 corresponding to the denomination determined by the coin identifying unit 203, the sorting gate 220 corresponding to the denomination slides to block the conveyance path. Thereby, the coin falls from the sorting gate 220 into the change tube of the corresponding denomination of the coin storage unit 205, and is stored in a state of being stacked in the thickness direction of the coin in the change tube. In addition, in the coin storage unit 205, when the corresponding denomination change tube is full, the sorting gate 220 does not operate, and the coin is transported to the back of the coin processing device and stored in the overflow warehouse in a denomination mixed state. To do.

  When change is necessary, the solenoid 231 corresponding to the required denomination of the payout mechanism unit 206 operates to pay out the required number of coins of the required denomination from the corresponding change tube of the coin storage unit 205. The paid-out coins fall on the transport belt 233, are transported on the transport belt 233, and are withdrawn from the coin payout outlet 207. When the coins paid out from the change tube fall on the conveyor belt 233, the coil sensor 235 provided for each denomination on the lower surface of the conveyor belt 233 detects the coin and is required for the conveyor belt 233 from the dispensing mechanism unit 206. You can know that the coin of the denomination has been paid out.

  As described above, according to the coin processing apparatus 200 of the present embodiment, the lifter unit 202 that conveys coins, the coin sorting unit 204, and the withdrawal coin conveyance so as to surround a plurality of change tubes arranged in parallel. A portion 208 is disposed, and a coin identifying portion 203 is provided in the middle of the lifter portion 202. Moreover, since the oscillation frequency of the coil sensor is made different from each other so that interference of the voltage waveform does not occur, high-precision detection can be realized even when adjacent coil sensors are brought close to each other. For this reason, it can pack without considering the mutual interference of the coil sensors provided for each distribution chute 310. As a result, there is no waste in the arrangement of the coin transport unit, and the overall size of the apparatus can be reduced.

  In addition, even if adjacent coil sensors are brought close to each other, their detection function is not hindered, so even if there is a metal structure near the position where the coil sensor is installed, no extra level fluctuations (ripples) occur. It is possible to give a margin to the design. Moreover, since the method of making the constants of the magnetic coil and the capacitor different in order to make the oscillation frequency of the coil sensor different from each other, it can be easily realized without adding extra circuit parts.

  Furthermore, since the sorting gate 220 corresponding to the identified coin denomination automatically advances to the second transport path and captures the coin, the coin can be reliably guided to the corresponding change tube.

  In this embodiment, in order to make the oscillation frequency of each coil sensor different, the inductance of each magnetic sensor and the capacitance of the capacitor are made different from each other. However, in the above equations (1) to (3), If the required oscillation frequencies f1, f2, and f3 are different and the above-described conditions are satisfied, any of the elements may match.

  Further, in this embodiment, in order to prevent mutual interference of the coil sensors provided for each sorting chute 310, the oscillation frequency of each coil sensor is configured to be different, but it is at a distance that does not interfere. The same oscillation frequency may be set for the distribution chute.

  In addition, the structure which makes the oscillation frequency of each coil sensor different and prevents the mutual output voltage interference is not only the coin processing apparatus shown in the said embodiment, but the metal detection apparatus which detects a general metal, metal The present invention can be applied to a distance measuring device that measures the relative distance between them, a proximity sensor device that determines the presence or absence of metal at a close position, and other devices.

It is explanatory drawing which shows the external appearance of a money processing apparatus. It is an internal side view which shows the outline | summary of a banknote processing apparatus. It is an internal side view which shows the outline | summary of a coin processing apparatus. It is explanatory drawing showing the structure of a lifter part and its vicinity. It is explanatory drawing showing the conveyance path of a lifter part. It is the elements on larger scale of the lower part periphery of the lifter part seen from the left side of FIG. It is a side view of the lifter part seen from the right side of FIG. It is explanatory drawing showing the structure around the pulley which comprises a lifter part, and its operation | movement. It is explanatory drawing showing the structure of a coin distribution part and its vicinity. It is explanatory drawing showing the structure of the state which looked at the coin distribution part from upper direction. It is explanatory drawing showing the structure and operation | movement of the distribution gate periphery of a coin distribution part. It is explanatory drawing showing the structure and operation | movement of the distribution gate periphery of a coin distribution part. It is explanatory drawing showing operation | movement of a distribution gate. It is a top view showing operation of a distribution gate. It is a front view showing operation | movement of a sorting gate. It is a block diagram showing the structure of a general coil sensor. It is a conceptual diagram showing the detection method of a coil sensor. It is explanatory drawing showing an example of the waveform output of a coil sensor. It is explanatory drawing showing the problem of an actual waveform. It is a circuit diagram showing the structure of the coil sensor of embodiment. It is explanatory drawing showing the influence degree of frequency interference. It is explanatory drawing showing the influence degree of frequency interference.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Money processing apparatus 100 Banknote processing apparatus 101 Banknote insertion slot 105 Deposited banknote discrimination part 108 Mixed banknote storage 109 Thousand-yen banknote storage 110 Discharge rejection warehouse 111 Withdrawal holding part 115 Banknote delivery part 116 Withdrawal banknote discrimination part 123 Banknote Withdrawal port 200 Coin processing device 201 Coin insertion port 202 Lifter unit 203 Coin identification unit 204 Coin sorting unit 205 Coin storage unit 206 Dispensing mechanism unit 207 Coin dispensing port 208 Withdrawal coin transport unit 214, 221, 233 Conveyor belt 220 Shaking Minute gate 223, 235 Coil sensor 225, 226 Coin storage cassette 281-289 Pulley 290 Guide member 291 Transport guide surface 302 Guide wall 304 Stopper wall 305 Capture guide surface 306, 307 Slit 309 Solenoid 310 Sorting chute 321 Short shaft 322 Frame 323 Bearing member 328 Holder 329 Coin regulation guide 350, 360, 370 Coil sensor 351, 361, 371 Magnetic coil 352, 362, 372 Oscillation control circuit 353, 363, 373 Oscillation circuit 354, 364, 374 Peak hold rectifier circuit

Claims (16)

In the coin processing device that is connected to the main device and performs a predetermined coin identification process,
A change tube which is provided so as to extend vertically and arranged in parallel in the depth direction;
A lifter portion that extends vertically so as to be lined up on the front side of the change tube, and that conveys coins inserted from a coin insertion port provided at the lower part of the front surface;
A coin identifying unit that is provided in the middle of the first transport path constituting the lifter unit and identifies a coin to be transported;
A coin allocating section that extends in the depth direction above the change tube from the vicinity of the upper end of the lifter section, receives and conveys the coin from the lifter section, and distributes the coin to the corresponding change tube;
A withdrawal coin transport section that extends in the depth direction below the change tube and transports a coin dispensed from any of the change tubes to a coin payout outlet provided in the lower front portion;
With
The coin distribution unit is
A sorting gate which is provided for each change tube and which can be moved forward and backward in a second transport path constituting the coin sorting unit in order to capture corresponding coins;
A sorting chute that is provided for each sorting gate and guides the coins captured by the sorting gate to a corresponding change tube;
The sorting gate corresponding to the denomination identified by the coin identifying unit is advanced into the second transport path to capture the coin, and the second transport is performed for the sorting gate not corresponding to the denomination. A sorting gate drive control means for retracting from the passage so as not to capture the coin;
A coin processing apparatus comprising: The lifter part is
The first transport passage having a sliding surface extending upward from the vicinity of the coin slot with a width larger than the diameter of the coins that can be thrown, and guiding the transport of the coins;
A first conveyor belt that extends substantially parallel to the sliding surface of the first conveyance path, rotates via a first drive unit, and conveys the coins upwardly so as to be sandwiched between the sliding surface; ,
With
The coin distribution unit is
The second transport path having a sliding surface extending from the vicinity of the upper end of the transport belt toward the back side with a width larger than the diameter of the coins that can be thrown in, and guiding the transport of the coins;
A second conveyor belt that extends substantially parallel to the sliding surface of the second conveying path, rotates via a second driving unit, and conveys the coins to the back side so as to be sandwiched between the sliding surface. When,
The coin processing device according to claim 1, comprising: The sorting gate is
A conveyance guide surface that guides the coin along the second conveyance path in a state in which the coin is sandwiched between the second conveyance belt and the second conveyance belt when retracted from the second conveyance path. When,
A capture guide surface that is provided on the back surface side of the transport guide surface and captures the coin and guides it to the sorting chute side when the second transport path is advanced;
The coin processing device according to claim 2, comprising:   4. The coin processing apparatus according to claim 3, wherein the sorting gate includes a slit through which the second transport belt can be inserted when the sorting gate operates in the advance direction to the second transport path.   When the sorting gate captures the coin, it presses the second transport belt in the advance direction on the downstream side in the transport direction of the coin, and between the sorting gate adjacent to the upstream side in the transport direction. 4. The coin processing apparatus according to claim 3, wherein a gap in the advancing direction is formed, the coin is received in the gap and guided along the guide surface for capturing. The sorting gate drive control means includes
A guide member for guiding the sorting gate in the advancing and retracting direction to the second transport path;
Biasing means for biasing the sorting gate to a retracted position from the second transport path;
A solenoid that operates the sorting gate in the advancing direction to the second transport path against the biasing force of the biasing means;
The coin processing device according to claim 5, comprising: The second conveyance path is provided with a coin regulation guide that guides while supporting the periphery of the coin from below.
The coin regulation guide has an end surface that is inclined downward toward the sorting gate so as to support a part of the periphery of the coin when the sorting gate is in the retracted position;
The coin processing device according to claim 6. In the second transport path,
A pulley for guiding the rotation of the conveyor belt;
A short shaft that rotatably supports the pulley;
A holder for supporting the short axis so as to be swingable in a direction in which the short axis comes into contact with and away from the sorting gate;
Second urging means for urging the short axis toward the sorting gate;
The coin processing device according to claim 3, comprising:   The coin processing device according to claim 2, wherein the coin distribution unit includes a detection sensor that is provided for each distribution chute and detects that the coin has passed. The sorting chute is provided to be inclined downward toward the upper end opening of the change tube,
The detection sensor is disposed on the back surface of the sorting chute,
The coin processing apparatus according to claim 9.   10. The coin processing apparatus according to claim 9, wherein the detection sensor includes a coil sensor, and at least adjacent coil sensors have different oscillation frequencies and exclude resonance frequencies. The coil sensor includes a coil, a capacitor and an active element for satisfying the oscillation condition,
At least one of the inductance of the coil of the adjacent coil sensor and the capacitance of the capacitor is made different from each other, so that the oscillation frequencies are different from each other;
The coin processing device according to claim 11.   13. The coin processing device according to claim 12, wherein the oscillation frequency of the coil sensor is set excluding a ripple generation region around the set frequency of the other coil sensor.   The coin processing apparatus according to claim 13, wherein the ripple generation region is a region of 2.3% before and after the set frequency.   14. The coin processing device according to claim 13, wherein the resonance frequency is excluded in the vicinity of a frequency 1 / n (n is an integer) of a setting frequency of the other coil sensor. In a money processing apparatus that is integrally provided with a banknote processing apparatus and a coin processing apparatus and that is connected to a main body apparatus and performs predetermined money processing,
The banknote handling apparatus is configured to identify a banknote deposited from a banknote slot provided in a lower front portion of the banknote and a banknote identifying section that is disposed in the upper part of the banknotes except for one denomination. A first safe that is mixed and stored in a lump, and is disposed adjacent to a lower portion of the first safe and stores the banknote of the one specific denomination, or the stored banknote as a change A second safe having a recycling function that can be paid out, and the banknotes arranged at the bottom of the second safe and fed out from the second safe are held until reaching a required number for withdrawal, A withdrawal holding unit that withdraws the held banknotes in a lump to a banknote outlet provided in the lower front part,
The coin processing device is provided so as to extend vertically, and a change tube arranged in parallel in the depth direction, and a coin input provided at the lower part of the front surface so as to be aligned vertically on the front side of the change tube. A lifter unit that conveys coins inserted from the mouth upward, a coin identification unit that is provided in the middle of the first conveyance path that constitutes the lifter unit, and that identifies a coin to be conveyed, and an upper end portion of the lifter unit Extending in the depth direction above the change tube from the vicinity, receiving the coin from the lifter portion and transporting it, and distributing it to the corresponding change tube, extending in the depth direction below the change tube, A withdrawal coin transport unit that transports the coins withdrawn from the change tube to a coin payout outlet provided in the lower front part,
The coin distribution unit is
A sorting gate which is provided for each change tube and which can be moved forward and backward in a second transport path constituting the coin sorting unit in order to capture corresponding coins;
A sorting chute that is provided for each sorting gate and guides the coins captured by the sorting gate to a corresponding change tube;
The sorting gate corresponding to the denomination identified by the coin identifying unit is advanced into the second transport path to capture the coin, and the second transport is performed for the sorting gate not corresponding to the denomination. A sorting gate drive control means for retracting from the passage so as not to capture the coin;
A money processing apparatus comprising:

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