JP4423367B2 - Coin delivery device status detection device - Google Patents

Description

The present invention drops coins into a plurality of through holes of a rotating disk rotated by an electric motor to classify the coins one by one, and rotates the sorted coins in a direction opposite to the rotating disk below the rotating disk. The present invention relates to a state detection device that detects an abnormality of a coin delivery device that receives a feed disk having the same number of protrusions as a through-hole to be fed and feeds it in a predetermined direction.
The “coin” used in this specification includes a coin as a currency, a token of a game machine, and the like.

As a first conventional technique, coins are dropped into a plurality of through holes of a rotating disk rotated by an electric motor to classify the coins one by one, and the divided coins are opposite to the rotating disk below the rotating disk. A coin feeding device is known that feeds in a predetermined direction after being received by a feeding disk having the same number of projections as the through-holes rotating in the direction (for example, Patent Document 1).
As a second conventional technique, in order to detect an abnormality of a rotating device, the rotation speed of a motor that is a drive source is detected by an encoder, and it is determined whether or not it is abnormal (for example, Patent Document 2).
As a third conventional technique, when the motor is overloaded, it is detected that the current increases, and when it is abnormal, the motor is stopped (for example, Patent Document 2).

JP-B 63-36040 (Figures 1-4 and 7, pages 2-4) JP 2001-109950 (Figures 1-5, pages 3-4)

  In the first prior art, when foreign matter is caught between the rotating disk or the feeding disk and the fixed portion, the second prior art or the third It can be combined with the prior art.

  When the second prior art is combined with the first prior art, the motor has a high rotational speed, so a motor with a high-precision encoder must be used, which is expensive and cannot be adopted much.

When the third prior art is combined, the resistance of the transmission path from the motor to the rotating disk and the feeding disk is individually different.
When the reference current value is uniformly set in consideration of this difference, the overload state differs for each sending device even if the current is the same, so the correlation between the motor load and the current value is low. is there.
In other words, the overload state of the motor cannot be detected, and there is a risk of fire due to overheating of the motor.

A first object of the present invention is to accurately detect an abnormal state of a motor.
A second object of the present invention is to accurately detect an abnormal state of a motor with low cost.

In order to achieve this object, a disk detection device of a disk guide device according to the present invention is configured as follows.
In order to achieve this object, the invention of claim 1 is configured as follows.
The hole for the coins one by one divided by dropping the coins into a plurality of through holes of the rotating disk is rotated by an electric motor, to rotate the rotating disc opposite direction the divided and coins at the lower of the rotary disk In a coin feeding device that feeds in a predetermined direction after being received by a feeding disk having the same number of protrusions as a disk sensor, a disk sensor that detects and outputs a detection unit of the feeding disk, and receives a signal from the disk sensor and receives a predetermined reference An abnormal stop device for stopping the electric motor when the reference is deviated from the reference , and further, a guide device for guiding the coins fed from the feed disk upward, and an outlet of the guide device The abnormal stop device has a predetermined reference for the correlation between the disk sensor and the payout sensor. If it exceeds, the state detection device of the coin delivery device characterized in that it stops the electric motor.

In this configuration, coins fall into the through hole of the rotating disk rotated by the electric motor and are separated one by one, and then received one by one by the protrusion of the feeding disk that rotates in the opposite direction in conjunction with the rotating disk. , One by one in a predetermined direction by the feeding disk.
The disc sensor detects the detection unit of the feeding disc and outputs a detection signal.
The feed disk rotates in a state in which all of rotational resistances such as a rotary disk and a feed disk driven by an electric motor and a transmission mechanism are added.
In other words, the variation of each component and the rotational resistance due to the foreign matter are rotating together, so that if the rotation state of the feed disk is abnormal with respect to the reference state, it is abnormal.
The abnormal stop device receives this detection signal, compares it with a predetermined reference, determines an abnormal state, and stops the electric motor for driving the rotating disk and the feeding disk.
Therefore, since the abnormality of the electric motor for driving the rotating disk and the feeding disk can be determined with high accuracy, it is possible to reliably prevent troubles based on the heat generated by the electric motor.
Further, after the coin is fed out by the feeding disk, it is guided upward by the guide device, and is detected by the payout sensor when being paid out from the exit.
Therefore, when coins are stored in the bowl, in principle, one coin is paid out from the guide device outlet when the feeding disk feeds one coin.
In other words, one signal is output from the payout sensor for each output of the disk sensor.
Therefore, when this relationship breaks, it can be considered that a coin trouble has occurred in the guidance device.
Specifically, when the correlation between the outputs of the disk sensor and the payout sensor deviates from a predetermined reference, the state detection device stops the rotating disk and the feeding disk rotating motor.
Thereby, there exists an advantage which can also detect abnormality of the coin in a guidance apparatus.

A second aspect of the present invention is the state detection device for a coin feeding device according to the first aspect, wherein the detection unit is a protrusion of a feeding disk.
In this configuration, since the detection unit is a projection of the feed disk, no parts are added.
Therefore, it can be made inexpensively.

The invention according to claim 3 is the state detection device of the coin feeding device according to claim 1, wherein the abnormal stop device stops the motor when the output interval of the disk sensor exceeds a predetermined time.
In this configuration, the number of rotations of the rotating disk and the feeding disk is approximately 60 rotations per minute to ensure delivery.
Thus, the signal width from the disk sensor has a width of at least about 10 ms, so it can take 100 times more time than processing the signal obtained from the original rotation of the motor.
Therefore, since signal processing is easy, an inexpensive circuit configuration can be obtained, and as a result, an inexpensive device can be provided.

The hole for the coins one by one divided by dropping the coins into a plurality of through holes of the rotating disk is rotated by an electric motor, to rotate the rotating disc opposite direction the divided and coins at the lower of the rotary disk In a coin feeding device that feeds in a predetermined direction after being received by a feeding disk having the same number of protrusions as a disk sensor, a disk sensor that detects and outputs a detection unit of the feeding disk, and receives a signal from the disk sensor and receives a predetermined reference An abnormal stop device for stopping the electric motor when the reference is deviated from the reference , and further, a guide device for guiding the coins fed from the feed disk upward, and an outlet of the guide device The abnormal stop device has a predetermined reference for the correlation between the disk sensor and the payout sensor. If it exceeds, the state detection device of the coin delivery device characterized in that it stops the electric motor.

FIG. 1 is a partially exploded perspective view of a coin feeding device equipped with a state detection device according to an embodiment of the present invention.
FIG. 2 is a plan view of an essential part of the coin feeding device equipped with the state detection device according to the embodiment of the present invention.
FIG. 3 is an enlarged perspective view of the disk sensor portion of the state detection device according to the embodiment of the present invention.
FIG. 4 is a block circuit diagram of the abnormal stop device according to the embodiment of the present invention.
FIG. 5 is an operation explanatory diagram of the abnormal stop device of FIG. 4 according to the embodiment of the present invention.
FIG. 6 is a block circuit diagram of another abnormal stop device according to the embodiment of the present invention.
FIG. 7 is an operation explanatory diagram of the embodiment of FIG.

As shown in FIG. 1, the coin feeding device 10 includes a frame 12, a cylindrical bowl 16 that is fixed to the frame 12 and stores coins 14, and a coin 14 that is inclined at the bottom of the bowl 16 is sent out. A rotating disk 18, a feeding disk 20 (see FIG. 2), and a coin guide device 22.
The rotating disk 18 is rotated by the electric motor 24 through a speed reducer 26 (see FIG. 4) at a predetermined speed, for example, 60 revolutions per minute. (For example, those disclosed in Patent Document 1).
The feeding disk 20 is rotated in the reverse direction by the speed reducer 26 in synchronization with the rotating disk 18.

  As shown in FIG. 2, the coin 14 that has fallen into the five through holes 28 formed at equal intervals in the rotating disk 18 is supported by the base 30 by an extrusion protrusion (not shown) on the lower surface of the rotating disk 18. It is pushed and rotated, and is guided in the circumferential direction of the rotary disk 18 by a guide 32 protruding into the movement path of the coin 14.

The feeding disk 20 has a star shape having five protrusions 34 at equal intervals, and rotates in the reverse direction in conjunction with the rotating disk 18.
The function of the feeding disk 20 is to receive coins that are fed one by one from the rotating disk 18 by the projections 34 and transfer them one by one along the arcuate guide surface 36.
The structures and functions of the rotating disk 18 and the feeding disk 20 are the same as those disclosed in Patent Document 1.

A gate device 38 is disposed next to the feed disk 20.
In the gate device 38, a roller 44 having a downward taper is rotatably attached to a support shaft 42 slidably inserted in a guide groove 40 extending in a direction orthogonal to the coin traveling direction, and the support shaft 42 is fixed. A coin 48 is urged to be narrowed by a spring 48 hooked between the pin 46 and the pin 46.
Usually, the support shaft 42 is locked to the end of the guide groove 40 and is stationary at a position where the distance from the guide surface 36 is smaller than the diameter of the coin 14.

When the coin 14 passes, the roller 44 is moved along the guide groove 40 by the coin 14, and after the maximum diameter portion of the coin 14 has passed, the roller 44 is moved to approach the guide surface 36 by the spring 48 and stops at the position. .
Accordingly, even if the coin 14 that has passed through the gate device 38 is returned to the feeding disk 20 side, the distance between the roller 44 and the guide surface 36 is smaller than the diameter of the coin 14, so that the coin 14 is stopped and cannot be returned.

The coins 14 that have passed through the gate device 38 are aligned in a row and guided upward by the curved portion guide portion 52 of the coin guide device 22 and the linear portion guide portion 54 that extends vertically upward, and are guided upward. At the outlet 56, the payout device 58 gives momentum and is paid out.
Immediately after being paid out, the coin 14 is detected by a payout sensor 59 attached to the coin guiding device 22.
The payout sensor 59 is, for example, a transmissive photoelectric sensor.

Next, the disk sensor 60 will be described with reference to FIGS.
The disk sensor 60 is fixed to the base 30 by a bracket (not shown).
In the disc sensor 60, a light projecting unit 66 is disposed on one arm 64 (lower side in FIG. 3) of a portal-shaped main body 62, and a light receiving unit 70 is attached to the other arm 68 (same upper side).
By disposing the projection 34 of the feed disk 20 so as to pass between the arms 64 and 68, the projection 34 blocks the optical axis projected from the light projecting unit 66 toward the light receiving unit 70.
The reason for projecting upward from the light projecting unit 66 is to prevent external light from entering the light receiving unit 70 as much as possible.

However, the disk sensor 60 can be changed to a proximity sensor that detects the approach of the protrusion 34, a mechanical sensor that is turned on or off by the protrusion 34, and the like.
Further, the protrusion 34 can be replaced with a pin fixed to the upper surface of the feed disk 20 corresponding to the protrusion 34.
In other words, the disk sensor 60 has a function of detecting the detection unit 72 that rotates integrally with the feed disk 20.
Therefore, the disk sensor 60 can detect the detection unit 72 of a part that rotates at the same speed in conjunction with the feed disk 20.
Further, it may be detected once in one rotation of the feed disk 20.

Next, the abnormal stop device 74 will be described with reference to FIG.
The abnormal stop device 74 has a function of stopping the electric motor 24 when the output of the disk sensor 60 is abnormal.
The abnormal stop device 74 can be changed to one having the same function as the embodiment.
The pulsed output from the disk sensor 60 is converted into a voltage by a frequency-voltage conversion circuit (hereinafter referred to as “FV circuit”) 76.

The output of the FV circuit 76 is compared with the reference voltage SV from the reference voltage setting circuit 80 in the comparison circuit 78.
The reference voltage SV of the reference voltage setting circuit 80 can be adjusted.
The comparison circuit 78 outputs an abnormal signal ES to the timer circuit 82 when the voltage of the FV circuit 76 is smaller than the reference voltage SV.
The timer circuit 82 outputs a stop signal SS when the abnormal signal ES continues for the time ST set in the reference time setting circuit 84.
The reference time ST of the reference time setting circuit 84 can be adjusted.
The drive circuit 86 receives a start signal SR from a main body control circuit such as a game machine and supplies current to rotate the motor 24.
When receiving the stop signal SS from the timer circuit 82, the drive circuit 86 stops supplying current to the motor 24 and stops the motor 24.

Next, the operation of this embodiment will be described with reference to FIG.
When a start signal SR is output from a control circuit such as a game machine, the drive circuit 86 supplies a current to the motor 24 (see FIG. 5A), so the motor 24 rotates.
As the motor 24 rotates, the rotating disk 18 and the feeding disk 20 are rotated in the reverse direction via the speed reducer 26.
The coins 14 that have fallen into the through holes 28 rotate together with the rotating disk 18 while being supported by the base 30, are guided in the circumferential direction by the guides 32, are sorted one by one, and are sent out.

The fed coin 14 is locked to the protrusion 34 of the feeding disk 20 on the way.
After this locking, the coin 14 moves along the guide surface 36 while being pushed by the protrusion 34.
Then, the coin 14 is pushed by the rearward coin 14 to move the roller 44 rightward in FIG. 2, passes through the gate device 38, and is guided to the guide device 22.
In the guide device 22, the coins 14 are aligned in a row with their peripheral surfaces in contact with each other, pushed up by the coins 14 fed out later, and ejected by the dispensing device 58 at the outlet 56.
The coin 14 is detected by the payout sensor 59 immediately after being flipped out.

Due to the rotation of the feed disk 20, the projection 34 blocks the projection light from the light projecting part 66 of the disk sensor 60, so that the light receiving part 70 does not receive light temporarily.
By this non-light reception, the disk sensor 60 outputs a pulsed detection signal DS (see FIG. 5B) which means that the protrusion 34 has been detected.
The rotation of the motor 24 is continued until a predetermined number of coins 14 are paid out from the outlet 56.
In other words, the rotating disk 18 and the feeding disk 20 continue to feed out the coin 14 until the detection signal from the payout sensor 59 reaches a predetermined number.

Therefore, the disk sensor 60 periodically outputs a pulse signal as shown in FIG.
As a result, the FV circuit 76 outputs a voltage FV proportional to the frequency, as shown in FIG.
This voltage FV is compared with the reference voltage SV set in the reference voltage setting circuit 80 in the comparison circuit 78.
When there is no problem in the rotation of the rotary disk 18 and the feed disk 20 and the movement of the coin 14 in the guide device 22, the voltage FV does not fall below the reference voltage SV.
Therefore, the comparison circuit 78 does not output the abnormal signal ES.

However, if a foreign object is caught between the rotating disk 18 and the base 30, between the feeding disk 20 and the base 30, or between the coin guide device 22 and the coin 14 therein, the rotating disk 18 and the feeding disk 20 rotation speed is reduced.
As a result, the rotation speed of the feed disk 20 decreases, and the period of the pulse signal of the disk sensor 60 increases (see FIG. 5 (D)), so the voltage FV is significantly lower than normal (see FIG. 5). (See (E)).
Due to this decrease, the voltage FV falls below the reference voltage SV.
Thereby, the comparison circuit 78 outputs an abnormal signal ES. (See (F) in Figure 5)

When the abnormal signal ES exceeds the reference time ST set in the reference time setting circuit 84, the timer circuit 82 outputs a stop signal SS. (See (G) in Fig. 5)
Due to the stop signal SS, the drive circuit 86 stops supplying current to the motor 24, so that the motor 24 stops rotating.
As a result, the rotation of the motor 24 in the overload state is immediately stopped, and an accident based on the overload rotation can be prevented.

Next, another example of the abnormal stop device shown in FIG. 6 will be described.
The abnormal stop device 88 includes a timer circuit 90 and a drive circuit 86.
The output of the disk sensor 60 is output to the ON input of the timer circuit 90.
The output of the payout sensor 59 is output to the OFF input of the timer circuit 90.
The timer circuit 90 is set to output a stop signal SS if the output of the payout sensor 59 is input to the OFF input for a predetermined time after being turned ON by the output of the disk sensor 60 and is not reset. .
This predetermined time is, for example, twice or more the normal output time interval of the disk sensor 60.

Next, the operation of this embodiment will be described with reference to the explanatory diagram of FIG.
When there is no abnormality, when the disk sensor 60 detects the protrusion 34 and outputs the pulse signal DS, the timer circuit 90 starts measuring the set predetermined time.
However, the payout sensor 59 immediately detects the coin 14 and outputs the pulse signal PS, and resets the timer circuit 90.
Therefore, the timer circuit 90 does not output a stop signal SS because it does not measure a time longer than twice the preset normal output time interval.

However, when the coin 14 is jammed in the guide device 20, the output interval of the pulse signal PS from the payout sensor 59 becomes extremely large.
As a result, as shown in FIG. 7, the timer circuit 90 measures a time that is at least twice the output time interval, and therefore outputs a stop signal SS to the drive circuit 86.
As a result, the drive circuit 86 stops power supply to the motor 24, so that the operation in the abnormal state of operation in the coin jam state is stopped.

FIG. 1 is a partially exploded perspective view of a coin feeding device equipped with a state detection device according to an embodiment of the present invention. FIG. 2 is a plan view of an essential part of the coin feeding device equipped with the state detection device according to the embodiment of the present invention. FIG. 3 is an enlarged perspective view of the disk sensor portion of the state detection device according to the embodiment of the present invention. FIG. 4 is a block circuit diagram of the abnormal stop device according to the embodiment of the present invention. FIG. 5 is an operation explanatory diagram of the abnormal stop device of FIG. 4 according to the embodiment of the present invention. FIG. 6 is a block circuit diagram of another abnormal stop device according to the embodiment of the present invention. FIG. 7 is an operation explanatory diagram of the embodiment of FIG.

Explanation of symbols

14 coins
18 Rotating disc
20 Feed disc
22 Guide device
24 Electric motor
28 through holes
34 Protrusion
56 Exit
59 Dispensing sensor
60 Disc sensor
72 Detector
74, 88 Abnormal stop device

Claims (3)

The coins (14) are dropped into a plurality of through holes (28) of the rotating disk (18) rotated by the electric motor (24) and divided one by one, and the divided coins (14) are divided into the rotating disks (14). below the) after receiving said by the feed disc having a hole (28) and equal number of projections (34) which in conjunction with the rotating disc (14) rotates in the opposite direction (20), the coin delivering a predetermined direction In the delivery device, the disc sensor (60) that detects and outputs the detection unit (72) of the feed disc (20), and receives the output of the disc sensor (60) and compares the reference with a predetermined reference. When it comes off, an abnormal stop device (74, 88) is provided to stop the electric motor (24) ,
Furthermore, a guide device (22) for guiding the coin (14) fed out from the feed disk (20) upward, and a payout sensor (59) disposed at the outlet (56) of the guide device (22) are provided. The abnormal stop device (88) stops the electric motor (24) when the correlation between the disk sensor (60) and the payout sensor (59) exceeds a predetermined reference. State detection device. The state detection device for a coin feeding device according to claim 1, wherein the detecting section (72) is a protrusion (34) of the feeding disk (20). The state detecting device for a coin feeding device according to claim 1, wherein the abnormal stopping device (74) stops the electric motor (24) when an output interval of the disk sensor (60) exceeds a predetermined time.

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