JPH0624934Y2 - Coin sorting mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a coin sorting mechanism used for public telephones and the like.

In public telephones and the like, when an inserted coin passes through a coin passage, the coin is sorted by a coin sorting mechanism provided in the coin passage, a proper coin is sent out, a defective coin is discharged, and a hooking ( Deformed coins are discharged by external force.

[Conventional technology]

As the coin sorting mechanism, the conventional Japanese Patent Publication No. 37-691 is used.
As described in Japanese Patent No. 0, a permanent magnet is arranged on one side of a coin passage, and a permanent coin is used to attract and discharge defective coins made of a magnetic material.

On the other hand, as shown in Japanese Utility Model Publication No. 56-53257 and Japanese Utility Model Publication No. 56-53255, a pair of detection coils are provided facing each other on both sides of the coin passage, and the coin passes between them. The quality of the coin is electrically sorted by the change in the magnetic flux that occurs, and thus, in addition to the sorting function described above depending on whether or not the coin is a magnetic substance, the coin diameter, thickness, and magnetic material other than nonmagnetic are used. An improved coin sorting mechanism that detects and sorts points has also been proposed.

4 (a) and 4 (b) are a front view and a side view showing such an improved conventional coin sorting mechanism of the latter,
As shown in this figure, the conventional coin sorting mechanism has
0 and the shaft 3 of the support member 31 attached to the raceway plate 30.
1a is formed by a guide plate 32 pivotally supported and a track plate 30 mounted on a track plate 30.
Covers the coin passage M, and a spring 34 is provided on the raceway plate 30 side.
It is structured to be urged by.

On the guide plate 32, one detection coil 35a of a detection coil device 35 including a coil for electrically detecting coins.
Of the coin that passes through between the other detection coil 35b attached to the raceway plate 30 and the detection coil 35b, the diameter, thickness, material, etc. of the coin are detected from changes in the magnetic flux, and the type of coin And the detection of bad coins. Further, the guide plate 32 is opened to the front side by the contact member 36 for transmitting an external force coming into contact with and pressing the protruding portion 4a provided at the lower portion. At this time, the wiper mechanism 37 projects from the track plate 30 toward the guide plate 32.

Therefore, the inserted coin passes through the detection coil device 35 along the coin passage M when stored, and the guide plate 32 is opened by an external force when returned, and the wiper mechanism 37 moves the coin from the coin passage M in the direction indicated by the arrow A. It is discharged and returned to the return port.

However, in such a conventional coin sorting mechanism as described above, since one detection coil 35a is attached to the movable guide plate 32 in the detection coil device 35 including a pair of opposing detection coils for detecting coins. , The distance B between the detection coils 35a and 35b is
Is not constant due to changes over time and deformation of the guide plate 32, and the distance B between the detection coils 35a and 35b changes, and the magnetic flux density between the pair of detection coils changes, and stable detection is always performed. It was not possible, and the accuracy of detection could not be improved.

In view of the above points, according to Japanese Patent Laid-Open No. 58-195994, one of the pair of detection coils constituting the above-mentioned detection coil device and the other have a fixed cross-section U-shaped frame member with an opening at the bottom. A coin sorting mechanism provided on the surface has been proposed. In this proposed mechanism, when the coin passing between the pair of detection coils is determined to be unfit coin, the defective coin is returned to the return passage by the action of the sorting gate plate separately provided in the lower stage, and the coin is regarded as the proper coin. When it is determined, the distribution gate plate is operated to open the passage to the coin chute.

[Problems to be solved by the device]

However, in the coin sorting mechanism disclosed in Japanese Patent Laid-Open No. 58-195994, coins that are judged to be appropriate when passing through the detection coil device are classified into the detection coil device and the sorting gate plate in the lower stage. There is also a problem in terms of space efficiency because it is easy to get caught in the gap, and the structure and operation of the coin passage mechanism and the sorting gate plate when the coin passes through the detection coil device are complicated.

In view of the above points, the present invention has a space-efficient coin sorting mechanism for smoothly sending or discharging a coin, which has been determined to be appropriate by a detection coil device including a pair of opposing detection coils, to a next coin storage unit. Is intended to provide.

[Means for solving problems]

Next, means for solving the above problems will be described with reference to FIGS. 1 to 3 corresponding to the embodiment of the present invention.

That is, the coin sorting mechanism of the present invention comprises a track plate (1), an upper part rotatably attached to the track plate (1), and a track (8) for rolling coins on the inner wall surface of the lower part. A guide plate (4) which has a vertical inclination and cooperates with the raceway plate (1) to guide coins to form a coin passage (M); a front plate (5a) and a rear plate (5b). Is fixed to the raceway plate (1) so as to sandwich the coin passage (M) from above, and the front plate (5a) and the rear plate (5b) are fixed. ), One of the pair of detection coils (10a, 11a) and the other (10a).
b, 11b) are provided so as to face each other, and the coins inserted from the upper side to roll in the coin passage (M) are coin guide openings (5b) between the front plate (5a) and the rear plate (5b). Provided in the coin passage (M) on the lower side of the detection coil device (5) and the detection coil device (5) that electrically sorts the coins by a change in the magnetic flux between the pair of detection coils that occurs when the detection coil device (5) passes. When the coin that rolls in the coin passage (M) is determined to be an unsuitable coin by the detection coil device (5), the signal causes the coin to protrude from the plate surface of the raceway plate (1) into the coin passage (M), and the coin When it is determined that the coin is a proper coin, it is provided with a discharge lever (12) that exits to the outside of the coin passage (M) according to the determination.

Further, in this invention, the guide plate (4) has a portion corresponding to the mounting position of the detection coil device (5) cut out along the outer shape of the detection coil device (5),
And, in the portion corresponding to the discharge lever (12),
A discharge port (4c) for discharging the inappropriate coin pushed by the discharge lever (12) when the discharge lever (12) is projected into the coin passage (M) is formed with the guide plate (4).
Is rotated to open the coin passage (M), and the coin in the coin passage (M) including the detection coil device (5) is dropped downward to be discharged.

[Action]

In the above-mentioned configuration, the coin passage (M) from the coin slot
Coins thrown into the upper part of the rolls roll on the track (8) of the coin passage (M), and between the pair of detection coils (10a, 10b), (11a, 11b) of the detection coil device (5). Pass through.
At this time, the magnetic flux between the pair of detection coils changes,
The diameter, thickness, magnetic non-magnetic property and other materials of the coin (C) are detected.

When the detection coil device (5) determines that the passing coin (C) is a proper coin, the signal causes the ejection lever (1
2) exits the coin passage (M) and allows the passage of coins (C), whereby the proper coins move to the next coin accumulation unit. When it is determined that the passing coin (C) is inappropriate, the ejection lever (12) projects into the coin passage (M) to eject and return the coin (C) from the ejection port (4c).

When the call or the like is finished, the guide plate (4) itself is rotated by an external force such as hooking, and the coins (C) on the truck (8) are discharged and returned downward at once.

〔Example〕

Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings.

FIG. 1 is a perspective view showing a coin sorting mechanism according to the present invention,
FIG. 2 is an exploded perspective view of the same. 1 in these figures
Is a raceway plate made of a plate-shaped member.
Are the side plates 16, 1 so that the surface 1a is inclined with a positive slope.
It is fixed at 6. On the upper part of the surface 1a of the track plate 1, a coin sorting mechanism 3 for sending out or discharging the coins C inserted from a slot 2 of a telephone or the like is attached.

The coin sorting mechanism 3 includes a guide plate 4 and a detection coil device 5.

The guide plate 4 is rotatable about a support shaft 6 attached to the track plate 1 in a vertically inclined manner, and is constantly urged toward the track plate 1 by a spring 7. Has a notch portion 4a in conformity with the outer shape of the detection coil device 5 in the upper portion near the center. A lower end edge 4b of the guide plate 4 is inclined in the same vertical direction as the support shaft 6, and a track 8 is attached to the lower end edge 4b over the entire length. The track 8 is a rail plate made of a long plate made slightly thicker than the thickness of the coin C, and the inserted coin C has a coin passage M formed by the track plate 1 and the guide plate 4 on the track 8. Is guided in the downward direction B.

A discharge port 4c is opened in the lower part of the support shaft 6 of the guide plate 4.

The detection device 5 is fixed to an insertion portion 1c formed of a recess formed in the upper edge of the track plate 1, and includes a front plate 5a and a rear plate 5b screwed to the track plate 1. , Front plate 5
A coin guide opening 5d is formed between a and the rear plate 5b. The front plate 5a and the rear plate 5b are formed by molding, and the detection coils 10a, 10b, 11a, 11b as electric or electronic sorting means are embedded in the protruding piece 5c above the rear plate 5b. By screwing the front plate 5a, these detection coils 10a and 10a
b, and the distance between the detection coils 11a and 11b is always constant. The interval between the openings 5d is at least equal to or larger than the thickness of one coin, and between the openings 5d, the coin C passing through the track 8 of the guide plate 4 along the coin passage M is It is supposed to be detected.

The coins are detected by the detection coils 10a, 11a detecting a predetermined oscillation frequency signal from an oscillator supplied to the detection coils 10a, 11b.
The change in the magnetic flux that occurs when the coin C passes between 1a and 11b causes the coin C to detect its diameter, thickness, material, and the like. In addition, defective coins such as deformed coins are also detected. The defective coin is discharged from the discharge port 4c portion by the discharge lever 12 protruding from the raceway plate 4 to the guide plate discharge port 4c portion and returned to the return port. The ejection lever 12 retreats from the track plate 1 only when the detection device 5 considers it to be a proper coin, and the proper coin is not ejected from the ejection port 4c and the track 8 of the guide plate 4 is not ejected.
The upper part is sent along the coin passage M to the lower storage part 13.

The accumulating unit 13 accumulates a certain amount of coins C that have passed through the detection coil device 5, and the accumulated coins are either stored in the device or returned to the outside according to the conversation frequency of the user. It is like this.

Next, the operation of the above configuration will be described.

As shown in FIG. 3 (a), after the coin C is inserted from the insertion port 2, it is guided along the track 8 between the raceway plate 1 and the guide plate 4, and the coil device 5 moves along the way. Opening 5
Since the coin C passes through the inside of d, the diameter, thickness, material, etc. of the coin C are detected here. As a result of the detection, the proper coin is sent to the inlet 13a of the accumulating section 13, and the defective coin is discharged from the discharge port 4c to the discharge lever 12c. It is discharged by and returned to the outside.

FIG. 3 (b) shows the returned state of coins. When a large amount of coins C are thrown in at one time or deformed coins are thrown in, the coins may be clogged between the guide plate 4 and the raceway plate 1, but in this case, the guide plate 4 is prevented from applying an external force. By receiving the pressing force of the actuating piece 14 which receives and operates, it pivots forward and opens the coin passage M, whereby the coin can be dropped and discharged in the return direction of the arrow D direction. At this time, the track 8 forming the coin orbit is connected to the guide plate 4
Since the coins C are attached, the coins C retained only by opening the guide plate 4 fall down along the track plate 1 and are returned.

The guide plate 4 is provided from directly below the coin slot 2 to the accumulator 1
The coin passages M of the coins C up to 3 can be opened by an external force and the accumulated coins C can be returned.

Further, the track is not fixed to the track plate, and a wiper mechanism for pushing the coin C out of the track is not required.

According to the above-described embodiment of the present invention, the coin (C) rolling on the track (8) of the coin passage (M) is provided with a pair of detection coils (10a, 10b), which face each other and are spaced apart from each other. (11
a, 11b), a coin sorting mechanism having a detection coil device (5) for electrically sorting the coin (C) by a change in magnetic flux between the pair of detection coils. A front plate (5a) which is fixed to the coil in a U-shaped cross section with the open portion facing downward and is provided on the raceway plate (1).
Since the rear plate (5b) and the rear plate (5b) are provided so as to face each other, there is no change in the distance between the pair of detection coils regardless of the rotation of the guide plate (4) having the track (8), and it is possible to detect it. There is no chance of going mad.

Further, since the guide plate (4) is notched along the outer shape of the detection coil device (5) at the mounting position of the detection coil device (5), the rotation of the guide plate (4) is detected by the detection coil device. It does not affect (5).

[Effect of device]

As described above, according to the coin sorting mechanism of the present invention, the forward / backward movement is performed by the detection coil device (5) including the pair of detection coils for determining the suitability of the passing coin and the detection signal from the detection coil device (5). And an ejection lever (12) for ejecting unsuitable coins or permitting movement of proper coins are provided along the upper part of the track (8) where the coin passage (M) is continuous,
While the coin is rolled on the track (8), the determination of suitability and the permission of discharge or movement are continuously performed, so that the work is efficient and the detection coil device is further provided. The location of (5) and the location of the discharge lever (12) are covered by a common guide plate (4),
In the meantime, there is no step, and the coins move smoothly and there is no risk of stagnation or jamming.

In addition, the discharge lever (12) projects or retracts into the coin passage (M) for discharging inappropriate coins from the coin passage (M) and allowing passage of appropriate coins according to the detection signal from the detection coil device (5). The unsuitable coin pushed by the discharging lever (12) from the coin passage (M) is moved by a very simple forward and backward movement of the guide plate (4) facing the discharging lever (12). Since it is ejected and returned by being pushed out from (4c), its operation is simple and efficient, and there is no fear of malfunction.

Further, according to the present invention, the track (8) forming the coin passage (M) for rolling the coin on the upper surface of the guide plate (4) has the upper part rotatably attached to the track plate (1). Is provided on the inner wall surface of the lower part of the track, and allows the coins to move while the track (8) is in contact with the facing surface of the fixed track plate (1), and the guide plate (4) is rotated outward. Since the coins can be returned in this state, the moving state of the coins is stabilized, and the above-mentioned returning operation is efficient. Further, the guide plate (4) is thin because the attachment position of the detection coil device (5) is cut out along the outer shape of the detection coil device (5), and the structure of the entire coin sorting mechanism is also made compact. To be done.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a coin sorting mechanism according to the present invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 (a),
(B) is a diagram for explaining the operation, FIG. 4 (a),
(B) is a figure which shows the conventional coin selection mechanism. DESCRIPTION OF SYMBOLS 1 ... Track plate, 2 ... Input port, 3 ... Coin sorting mechanism, 4 ... Guide plate, 4c ... Discharge port, 5 ... Detection coil device, 8 ... Truck, 10a, 10b, 11a, 11b ... Detection coil as a selection means , 13 ... accumulation part, C ... coins.

Claims (1)

[Scope of utility model registration request] 1. A track plate (1) and a track (8) having an upper part rotatably attached to the track plate (1) and a coin for rolling coins on an inner wall surface of the lower part, which are vertically inclined. A guide plate (4) having a guide plate (4) that cooperates with the raceway plate (1) to guide coins to form a coin passage (M), a front plate (5a) and a rear plate (5b) with their open portions downward. The coin passage (M) is fixed to the raceway plate (1) so as to sandwich the coin passage (M) from above, and the coin plate is fixed to the front plate (5a) and the rear plate (5b) so as to face each other. Is one of the pair of detection coils (10a, 11a) and the other (10b, 11a)
b) provided facing each other, the coins inserted from the upper side and rolling in the coin passage (M) pass through the coin guide opening (5b) between the front plate (5a) and the rear plate (5b). A detection coil device (5) that electrically sorts the coins by a change in the magnetic flux between the pair of detection coils that occurs when; and a coin passage (M) on the lower side of the detection coil device (5), When the coin rolling in the coin passage (M) is judged by the detection coil device (5) to be an inappropriate coin, the signal causes the coin to protrude from the plate surface of the raceway plate (1) into the coin passage (M), and the coin is appropriate. When the coin is judged to be a coin, the discharge lever (12) is pulled out of the coin passage (M) according to the judgment, and the guide plate (4) has the detection coil device (5).
The part corresponding to the mounting location of the detection coil device (5)
Of the discharge lever (1) when the discharge lever (12) projects into the coin passage (M) at a portion corresponding to the discharge lever (12).
Discharge port (4c) for discharging unsuitable coins pushed by 2)
Is opened, the coin passage (M) is opened by the rotation of the guide plate (4), and the coin in the coin passage (M) including the detection coil device (5) is dropped downward and discharged. A coin sorting mechanism characterized by being configured as follows.