JPH0219889Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a coin sorting device attached to public telephones, vending machines, etc., and more specifically, a coin sorting device equipped with a mechanism to prevent unauthorized line fishing operations. Regarding.

[Conventional technology]

Various coin sorting devices have been proposed to prevent unauthorized use of coins suspended by a string.
As an example, a coin handling device disclosed in Japanese Utility Model Publication No. 59-29250 is known. A coin tester is installed at the end of the coin path to detect genuine coins and coin types, and the input coin and amount of passing coins are detected only when the coin is a genuine coin upon receiving a signal from the coin tester at the end of the coin path. A controller is provided between the coin input slot and the coin tester to block the coin passage according to a signal from the coin tester, and to open the coin passage according to a signal from the coin recognizer. It is something.

[The problem that the idea attempts to solve]

However, in such conventional coin handling devices, a structure is adopted in which the coin control board protrudes into the coin passage and mechanically holds the string of the string-hanging coin by pressing it against the board, so the string slips. It was not possible to obtain a sufficient holding force to prevent this, and it was not possible to completely prevent unauthorized use of coins suspended by a thread. However, this can be prevented by pressing the coin control board against the board with a large driving force, but this requires a large amount of power, making it difficult to use low-power-consuming coin sorting devices that use central power supply like public telephones. is not suitable.

Therefore, the present invention was devised in view of the above-mentioned conventional problems, and its purpose is to provide a low power consumption type that can reliably prevent unauthorized use due to string hanging. The present invention provides a coin sorting device.

[Means to solve the problem]

In order to achieve the above object, the coin sorting device according to the present invention includes a thread detection piece that is arranged to be movable forward and backward with respect to the coin track, and that normally projects into the coin track to interrupt the coin track. A groove having a groove width substantially equal to the plate width of the thread detection piece is formed on the raceway surface of the coin track facing the thread detection piece, and communicates with the groove in which the thread detection piece is normally inserted and the coin track. an overflow outlet communicating with the return track formed on one wall surface facing in the coin radial direction at the upper end of the storage track; and a guide surface inclined with respect to the coin rolling direction on the end face on the storage track side. a coin rail provided at the terminal position of the coin track and having a thread release groove formed following the guide surface and communicating with the discharge port of the storage track and the return track; and an initial stage of the thread detection piece. and a non-contact type sensor for detecting return to the position, and the thread detection piece engages with a return lever and moves in conjunction with the operation of the lever to move the coin out of the coin track.

[Effect]

In the present invention, when the thread is present in the coin track, when the string-suspended coins are thrown in and accumulated in the accumulation track, the thread detection piece enters the groove formed on the raceway surface of the coin track for the thread. This prevents normal recovery from occurring. By detecting this thread detection piece with a sensor, the presence of a thread-hanging coin is indirectly detected. When the return lever operates when a coin passes, the thread detection piece operates in conjunction with this and temporarily withdraws from the coin trajectory.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a front view showing an embodiment of the coin sorting device according to the present invention, FIG. 2 is a sectional view taken along the line of FIG. 1,
3 is a sectional view taken along the line of FIG. 1, and FIG. 4 is a sectional view taken along the line of FIG. 1. In these figures, 1
Reference numeral 2 indicates a board erected at a slight inclination inside the device, and 2 a side plate placed opposite to the board 2. A coin track A is formed by these two members, the coin rail 3, and the like. The coin track A is tilted downward to the left in Fig. 1 in conjunction with the coin input port 4 provided at the top of the device, and along the way there are various mechanisms for sorting the coins C by their outer diameter, thickness, magnetism, material, etc. 5 and return lever 7
A thread detection mechanism 11, which will be described later, is provided.

The return lever 7 is located between the sorting mechanisms 5 and the thread detection mechanism 11, and normally projects into the coin trajectory A from the window 8 of the base plate 1, as shown in FIG. This blocks the orbit A, and is configured to temporarily exit the coin orbit A by being driven by the sorting magnet 6 when a regular coin C passes through. Therefore, all coins other than genuine coins determined to be pseudo coins by the sorting mechanism 5 are removed from the return lever 7.
The regular coins C pass through the coin trajectory A and are guided to the accumulation trajectory D. It will be destroyed.

When the sorting mechanism 5 determines that the input coin is a regular coin, the sorting magnet 6 separates the coin from the sorting mechanism 5.
It is driven by a signal sent from the

As is well known, the accumulation trajectory D is a trajectory in which a predetermined number of regular coins C are temporarily accumulated in the diametrical direction.
A coin storage lever (not shown) is provided almost vertically, and its upper end communicates with the coin track A, and its lower end normally projects into the track D. A coin storage lever (not shown) is provided below the coin rail 3. A discharge port 13 is provided which communicates the return track B with the return track B. The coin rail 3 is disposed at the terminal position of the coin track A, and has a thread relief groove 14 by forming the width of the rear end smaller than the width of the coin track A, as shown in FIG. The tip of the rear end portion is cut off diagonally to form a guide surface 15 that guides the thread 10 to the thread release groove 14. Further, the rear end of the coin rail 3 is bent downward to lock the string-suspended coin C ₁ guided from the discharge port 13 to the lower part of the coin rail 3. ). The coin rail 3 is screwed and fixed to the inner surface of the substrate 1, that is, the raceway surface of the coin C, and its upper surface is formed as a smooth surface because it is configured as a coin rolling surface.

The yarn detection mechanism 11 includes a yarn detection piece 20 that operates in synchronization with the return lever 7. This thread detection piece 20 is disposed on the outer surface of the substrate 1 so as to be substantially perpendicular to the substrate 1, and a portion thereof normally protrudes into the coin trajectory A through a slit 21 formed in the substrate 1, thereby detecting the thread. It interrupts the trajectory A, and its upper and lower ends are the detection piece guides 22, 2.
3, and is connected to the section magnet 6 via an operating lever 24. The lower end of the connecting lever 24 is pivotally connected to the segmented magnet 6 via a shaft pin 25 so as to be rotatable in the left-right direction in FIG.
is implanted, and this pin 26 is inserted into a hole 27 formed in the thread detection piece 20. A rotary lever 29 is provided on one side of the thread detection piece 20 and is bent into a substantially inverted L shape and whose bent portion is rotatably supported by a support shaft 28. A weight 30 is attached to the horizontal end of the movable lever 29 to give the lever 29 the ability to rotate counterclockwise in FIG. On the other hand, the vertical portion of the rotating lever 29 has a pin 31 implanted at its lower end, and this pin 31 is inserted into a longitudinally elongated hole 33 formed in the yarn detection piece 20. Therefore,
The thread detection piece 20 is given the habit of moving (returning) to the right in FIG. 2 due to the rotational behavior of the rotary lever 29 by the weight 30, so that it normally protrudes into the coin trajectory A and interrupts the trajectory A. The operating lever 2 is moved by driving the segment magnet 6.
4 is rotated about the shaft pin 25 in the counterclockwise direction in FIG.

In this case, since the return lever 7 and the thread detection piece 20 use the segmentation magnet 6 as a common driving source, they are operated synchronously. Further, in this embodiment, the return behavior is imparted to the yarn detection piece 20 by the weight 30, but the present invention is not limited to this, and the operating lever 24 is biased clockwise in FIG. It goes without saying that a return habit may be added to.

A longitudinally long groove 35 is formed on the inner surface of the side plate 2, that is, on the raceway surface, corresponding to the thread detection piece 20. This groove 35 has a groove width that is approximately equal to or slightly larger than the thickness of the thread detection piece 20, and the tip of the thread detection piece 20 is normally fitted therein as shown in FIG. On the other hand, a non-contact type sensor 36 is disposed behind the yarn detection piece 20. This sensor 36 is for detecting whether or not the yarn detection piece 20 has correctly returned to its initial position.
6b, and the light emitted from the light emitting element 36a is normally received by the light receiving element 36b without being blocked by the thread detection piece 20.
If the light does not return to the initial position, the light is blocked by the detection piece 20 and is not received by the light receiving element 36b.

In the coin sorting device configured as above,
Below, when a line-fished coin C ₁ is inserted,
The operation to prevent unauthorized operation will be explained.

The fraudster ties a string 10, string, etc. to a genuine coin and inserts it into the coin slot 4. Then this coin
C ₁ passes safely through the sorting mechanisms 5 while rolling and falling in the coin track A, and is accumulated in the storage track D. At this time, the return lever 7 and the thread detection piece 20
The sorting magnets 6 are driven by the signals sent from the sorting mechanisms 5, so that they operate synchronously and temporarily withdraw from the coin orbit A as shown in FIG. Therefore, even if the coin C ₁ is tied to the thread 10, as long as it is a regular coin, it will be guided to the accumulation track D without being blocked by the return lever 7 and the thread detection piece 20. Then, the thread 10 is connected to the guide surface 15 of the coin rail 3 (Fig. 4).
The yarn moves along the line and enters the yarn relief groove 14. Also,
When an unauthorized person tries to collect the coin C ₁ by pulling the string 10, the coin C ₁ is pulled diagonally upward and to the right in FIG. Locking part 3A
It is locked by.

Therefore, even if the thread 10 is pulled in this state, the coin _C1 will not be pulled back into the coin trajectory A beyond the locking portion 3A.

Further, as described above, when the coin C ₁ passes through the coin orbit A, the power to the classification magnet 6 is cut off.
Since the magnet 6 returns, the return lever 7 and thread detection piece 20 also return and project into the coin trajectory A. At this time, the thread 10 is on the coin trajectory A
If present in the thread 1, as shown in Figure 6,
0 prevents the tip of the thread detection piece 20 from fitting into the groove 35. As a result, the thread detection piece 20 continues to block the light from the light emitting element 36a, so the sensor 36 detects that the thread detection piece 20 has not returned to its initial position correctly. It detects that it exists in orbit A, and uses this detection signal to stop the service provided by the device. Therefore, the string hanging coin C ₁ cannot be used illegally, and even if the string 10 is pulled up, the coin trajectory A is blocked by the return lever 7 and the string detection piece 20, so the coin C Make recovery of ₁ impossible.

Similarly, even if the thread detection piece 20 is actuated due to vibration shock or the like and the sensor 36 is actuated, there is no problem because the return lever 7 interrupts the coin trajectory A.

In addition, in the above embodiment, the thread detection piece 20 detects the coin trajectory A.
Although the case has been described in which the thread 10 is blocked over its entire length in the height direction, the present invention is not limited to this, and it goes without saying that the thread 10 may be blocked within a range where the thread 10 can be detected.

[Effect of idea]

As described above, the coin sorting device according to the present invention is configured to detect the presence or absence of a string-suspended coin based on whether or not the string detection piece has returned to its normal position, so there is no need to directly hold the string. The driving force of the drive source can be reduced, which is advantageous for low power consumption.Also, when attempting to pull up a string-hanging coin, the string enters the thread release groove along the guide surface of the coin rail, and the coin is returned from the ejection port to the return track. Therefore, unauthorized thread lifting operations can be reliably prevented.

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is Fig. 1 - Line sectional view, Fig. 3 is Fig. 1 -
FIG. 4 is a cross-sectional view taken along lines taken from FIG. 1, FIG. 5 is a diagram showing the state when a coin passes, and FIG. 6 is a diagram for explaining thread detection. 1... Board, 2... Side plate, 3... Coin rail, 5... Sorting mechanisms, 6... Sorting magnet,
7... Return lever, 10... Thread, 11... Thread detection mechanism, 14... Thread relief groove, 15... Guide surface, 2
0... Thread detection piece, 35... Groove, 36... Sensor,
A...Coin trajectory, B...Return trajectory, C...Regular coin, _C1 ...String hanging coin, D...Accumulation trajectory.

Claims (1)

[Scope of claim for utility model registration] Disposed so as to be movable forward and backward with respect to the coin track A,
Usually, the coin trajectory A is protruded into the coin trajectory A.
a thread detection piece 20 that intercepts the thread detection piece 20; and a thread detection piece 20 formed on the raceway surface facing the thread detection piece 20 of the coin track A with a groove width approximately equal to the plate width of the thread detection piece 20; 20 is inserted, and an overflow discharge port 13 that communicates with the return track B formed on one wall surface facing in the radial direction of the coin at the upper end of the storage track D that communicates with the coin track A. , a guide surface 15 inclined with respect to the coin rolling direction on the end face on the side of the storage track D, and a thread escape groove formed following the guide surface 15 and communicating with the discharge port 13 of the storage track D and the return track B. 14 and provided at the terminal position of the coin track A; non-contact sensors 36a and 36b for detecting return of the thread detection piece 20 to the initial position; The piece 20 engages with the return lever 7 and operates in conjunction with the activation of the lever, thereby
A coin sorting device characterized by exiting from the coin orbit A.