JPS6324523Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention provides a structure for a coin return unit in a coin sorting device attached to a public telephone, vending machine, etc., which prevents coins from jamming during return. Regarding.

[Conventional technology]

Coin sorting devices attached to public telephones, etc. sort coins inserted through a slot using various sorting mechanisms such as diameter, thickness, weight, or material, and store sorted regular coins in a nearly vertical pile. The coins are guided to the orbit and accumulated, and the accumulated coins are stored every time a coin storage signal arrives, and the pseudo coins sorted by the sorting mechanisms or the surplus coins still left in the accumulation orbit after the end of the call are It is configured to be released into a return orbit.

In such a sorting device, when returning coins in the storage track, for example, a plurality of coins are fed into the return track at once, so coins may get jammed in the return track.

In addition, in general, when coins are continuously input into this type of coin sorting device, if the preceding coin is a regular coin and the subsequent coin is a pseudo coin, there is a risk that the subsequent pseudo coins will also be led to the accumulation trajectory. Therefore, a pair of gates that move forward and backward with respect to the coin track are usually provided to prevent continuous coin insertion and improve coin sorting efficiency. By the way, for the purpose of improving coin sorting efficiency, it is considered to provide a plurality of return tracks. In other words, in the on-hook state (when not in use), the coins inserted from the input slot are returned directly to the return slot from the first return track without being guided to the discriminating part, and in the off-hook state (when in use), the coins inserted from the coin inlet are returned to the discriminating part in the discriminating part. The coins determined to be pseudo coins are returned to the return slot from the second return track, and when the call is ended and an on-hook operation is performed, the surplus coins remaining in the storage track are collected from the third return track. At the same time, the subsequently inserted coins may be returned to the return slot from the first return track. However, in such a coin sorting device, if a plurality of coins flow into the return slot during a return operation, or if a pseudo coin is inserted immediately after switching from an on-hook state to an off-hook state, the pseudo coin will be transferred to a second return slot. Since the coins are released from the orbit to the return slot, surplus coins and pseudo coins flow into the return slot almost simultaneously from the three return tracks. In this way, when multiple return trajectories are provided, a large number of coins may flow into the return slot at the same time due to a return operation, for example, if the first coin hits the inner surface of the return slot. While the coins have not yet been deflected in the vertical direction, the remaining coins flow in one after another and overlap and become jammed between the side plates of the coin track, a so-called scale clogging phenomenon.

[Problem that the invention attempts to solve]

In order to solve the phenomenon of scale clogging of returned coins in the above-mentioned coin sorting device having a plurality of return tracks, for example, the width and thickness of each return track can be made sufficiently large. However, this would result in an increase in size, making it impossible to use it in public telephones, etc., which require smaller size and lighter weight.
Also, for example, Jitsugan No. 55-20291 (Jikko 62-
It is also effective to provide a guide protrusion on a part of the return track to change the rolling direction of the return coin, as disclosed in Japanese Patent Publication No. 20064, but this technique is only applicable to coins with two return tracks. This is intended for sorting equipment, and it is completely impossible to prevent the coin jam phenomenon by simply using it.In the end, it was decided to provide multiple return tracks to improve sorting efficiency. No effective measures could be taken to prevent the occurrence of the coin jam phenomenon caused by the coin jamming.

[Means for solving problems]

In order to solve this problem, the present invention has a structure of a coin return part in a coin sorting device having a plurality of return tracks, in which an inclined first return track is provided below the coin input port side, and an almost vertical second return track is provided below the coin input slot side. A return track is provided below the storage track side, a third return track is provided below the storage track and obliquely on the opposite side to the first return track, and these first, second and third The present invention is characterized in that a guide protrusion having two slopes and a plunge prevention wall is provided on the substrate located at the confluence of the return tracks.

[Effect]

According to the structure of the coin return unit according to the present invention configured as described above, during the return operation, coins inserted from the input slot are returned from the first return track to the return slot, and are sorted by the sorting mechanism. Pseudo coins are the second
The coins in the accumulation track are returned from the third return track to the return slot during the return operation, and the coins in the accumulation track are returned to the return slot from the third return track, and the guide protrusion diverts the return coins that have flowed into each return track. The two slopes convert the rolling direction of coins from the first or third and second return tracks into the thickness direction, respectively, and the thrust prevention wall prevents coins from rolling from the first or third return track. It acts to prevent this and guide it to the return slot.

〔Example〕

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

The embodiment is applied to a coin sorting device for public telephones that allows the use of multiple types of coins with different outer diameters, and FIG. 1 is a front view with the cover omitted;
FIG. 2 is an exploded perspective view, and FIG. 3 is a vertical sectional view taken along the line of FIG. 1.

In these figures, a board 1 is erected on its back side at an angle of inclination, and a sorting track 3 is connected to a return flapper 2 that opens and closes in conjunction with the return operation (on-hook operation of the handset) arranged on the front side. and an accumulation orbit 4. Further, a cover 5 is disposed below the return flapper 2 on the surface of the board 1, and this cover 5 and the board 1 form first, second, and third return tracks 7, 8, 9. and a storage track 10.

The sorting track 3 includes a rail member 13 that receives coins 12 inserted from the coin input port 11 and absorbs their falling speed, a first gate 14 that guides the coins 12 to the storage track 4, and a first gate 14 for guiding the coins 12 into the storage track 4. A discrimination section 15 that discriminates between genuine and false coins, and a second gate 1 that works together with the first gate 14 to prevent continuous insertion of coins.
6th grade is placed. The first return track 7 is provided at an angle below the first gate 14 , and the second return track 8 is provided substantially vertically below the second gate 16 . The third return track 9, which is inclined opposite to the first return track 7, is provided below. The first gate 14 is arranged to be movable forward and backward with respect to the coin accumulation track 3, and is normally projected into the track 3 by a spring 17, with its upper surface forming a rolling rail for coins. On the other hand, the second gate 16
Disposed at a predetermined distance behind the gate 14,
Normally, the sorting track 3 is closed by protruding into the same. The discrimination section 15 includes a pair of electromagnetic coils (not shown) disposed on the substrate 1.
and a pair of electromagnetic coils 15 disposed on the return flapper 2 corresponding to the pair of electromagnetic coils.
a and 15b, and when a coin passes between these coils, the outer diameter, thickness, and material are determined by the induced electromotive force generated within the coil, and when the coin is determined to be a genuine coin, a genuine coin signal is output. The first and second gates 14 and 16 are sent to a magnet (not shown), and the magnet is energized to move the first and second gates 14 and 16 to the sorting track 3.
I'm trying to get them to leave. Therefore, the coins determined to be genuine coins by the discrimination section 15 are guided to the accumulation track 4 without colliding with the second gate 16, and are accumulated on the accumulation rail 25, which will be described later. When the detection means 18 detects the passage of a regular coin, the magnet is driven again by a passage confirmation signal sent from the detection means 18,
The first and second gates 14 and 16 are restored. Therefore, the first and second gates 14,
16 is leaving the coin sorting track 3, all coins that are continuously inserted following the regular coins, even if they are genuine coins, fall into the first return track 7 and are sent to the return slot 19. will be returned.

Note that the second gate 1 of the return flapper 2
A sorting window 20 is formed in a portion corresponding to 6, and a sorting flapper 21 which can be opened and closed and operates in conjunction with the first and second gates 14 and 16 to control opening and closing of the sorting window 20 is disposed. There is. The sorting window 20 is for returning the pseudo coins 22 that hit the second gate 16 to the second return track 8. The sorting flapper 21 normally opens the sorting window 20 to allow the pseudo coins 22 to fall onto the second return track 8, and when a regular coin passes and a specified number of regular coins are placed on the accumulation track 4.
The sorting window 20 is configured to close while the liquid is being accumulated in the screen.

The storage rail 25 is arranged in the coin rolling direction (first
A pair of shaft portions 27a and 27b protrude from both sides of the lower end of the substrate 1. is rotatably held by a bearing portion 24 provided on the surface of the substrate 1, and is provided with a clockwise rotational habit in FIG. 3 by a leaf spring 28. Further, a lever portion 25a extending toward the back surface of the substrate 1 is integrally provided at the center of the back surface of the storage rail 25, and the tip of this lever portion 25a is in contact with the lever 30. The lever 30 normally presses the lever portion 25a against the leaf spring 28 to cause the storage rail 25 to protrude from the concave portion 26 and face into the storage track 4. In this protruding state, , the upper surface 25b of the storage rail 25 constitutes a rolling and storage surface for the storage coins. The lever 30 is configured to release the pressed state of the lever portion 25a by moving rightward in FIG. 3 in conjunction with a hook mechanism (not shown) when the transmitter/receiver (not shown) is operated on the hook. There is. When this pressure is released, the storage rail 25 is rotated by the force of the leaf spring 28 and stored in the recess 26 as shown in FIG. The coins 12a to 12d fall all at once onto the third return track 9 and return to the return rail 35.
It rolls on the top and is returned to the return port 19. The return rail 35 is provided on the surface of the board 1 and below the tip of the storage rail 25 with an inclination opposite to that of the rail 25, and as shown in FIG. The tip 35a on the side of the track 10 is bent upward while covering a part of the upper end opening, and the tip 35a and the storage rail 2
The lowest coin 12a accumulated on the rail 25 is held by the top surface of the top end of the rail 25. In addition,
In this embodiment, the coin storage capacity is four coins.

Above the storage track 10, a storage flapper 40 which can be opened and closed is provided on the surface of the substrate 1 to control opening and closing of the storage track 10 and prevent erroneous storage. Further, the storage flapper 4 is provided on the back side of the substrate 1.
0, a storage lever 41 is disposed such that it can freely move in and out of the storage track 4, and is normally retracted from the track 4. When a storage signal is sent from the station, the storage lever 41 is operated via an electromagnetic drive mechanism (not shown), and a part of the storage lever 41 advances into the storage track 4 to transfer the lowest coin 12a to the storage flapper 40. Press and move it to the side, storage track 10
Coins are stored in.

Now, as mentioned above, all the coins that have fallen on the first, second, and third return tracks 7, 8, and 9 are collected at the return slot 19 and returned, but in that case, a large number of coins are returned at the same time. If this happens, there is a risk that these three return tracks 7, 8, and 9 will collide with each other at the confluence part B, causing a coin jam.
0 is set. This guide protrusion 50 is integrally provided on the surface of the substrate 1, has a rectangular bottom surface (joint surface with the substrate 1), and has a cross section, more specifically, a direction for transferring coins from the first return track 7. Since the cross section of the plane including the moving direction (direction of arrow C) and perpendicular to the plane of the substrate 1 forms a substantially right triangle, the rolling direction of the coin 12e from the first return track 7 is converted to the cover 5 side. A first slope 51A that is substantially orthogonal to the surface of the substrate 1 receives the coins 12f from the third return track 9 and prevents them from entering the first and second return tracks 7 and 8. , is provided with a plunge prevention wall 52 that prevents it from falling vertically downward. Further, the upper surface of the guide protrusion 50 forms a second slope 51B that changes the rolling direction of the coin 12g from the second return track 8 to the cover 5 side. Said first
The inclination angles of the second slopes 51A and 51B are determined according to the rolling speeds of the coins 12e and 12g, respectively.

Therefore, during the return operation, the coins inserted from the input port 11 pass through the first return track 7 and pass through the return port 19.
The surplus coins remaining in the accumulation track 4 roll on the return rail 35 and flow into the return port 19. At this time, the coin 12e is attached to the guide protrusion 50.
Change direction while riding on the first slope 51A of
Furthermore, it hits one side wall 19a of the return port 19 and changes direction downward. On the other hand, the coin 12f collides with the thrust prevention wall 52 and changes direction downward. As a result, even if the next coin follows immediately after the coins 12e and 12f, the coins 12e and 12f have already moved out of the rolling area of the next coin, so these two coins 12e and 12f and the next coin There will be no coin jam at the confluence part B. Also, coin 12
Since the direction of e is changed in the thickness direction with respect to the coin 12f, it is possible to prevent the coins 12e and 12f from colliding with each other.

Next, if a return operation is performed while continuously inserting coins, the first, second and third return tracks 7,
It rarely happens that the coins fall at 8 and 9 and flow into the return slot 19 all at once. In that case, the coin 12e from the first return track 7 and the pseudo coin 12g from the second return track 8 collide, but since the rolling directions of these coins 12e and 12g are different, the guide protrusion 50 and the cover 5 and will not be locked. Further, since the pseudo coin 12g changes its direction in the thickness direction, it will not collide with the coin 12f and cause a coin jam.

Therefore, in any case, the coins released into the first, second, and third return tracks 7, 8, and 9 are reliably sent to the return port 19 without causing coin jams in the confluence section B. It will be done.

In addition, in the above embodiment, the first slope 51a of the guide projection 50 is connected to the first return track 7, and the thrust prevention wall 5 is connected to the first slope 51a of the guide projection 50.
2 corresponds to the third return trajectory 9, respectively,
The opposite may be true.

[Effect of idea]

As explained above, the structure of the coin return unit according to the present invention consists of a first and a third return track with two return tracks having opposite inclination directions for the purpose of improving the sorting effect. At the confluence of the tracks, there are two slopes that convert the rolling direction of coins from one inclined return track and the vertical return track into the thickness direction, respectively, and one that changes the rolling direction of coins from the other inclined return track. Since the guide protrusion is provided with a prevention wall that prevents the coins from being pushed downward, even if multiple coins are returned to the return slot at once, the preceding coins can be quickly removed from the rolling area of the following coins. Since the rolling direction is changed so as to be retracted, it is possible to completely prevent coin jamming in the return track. In addition, the structure is simple, and three return tracks can be arranged in parallel on the same plane, making it possible to downsize the return track, in other words, the coin sorting device, which is very effective.

[Brief explanation of the drawing]

Fig. 1 is a front view with the cover omitted showing an embodiment of the present invention applied to a coin sorting device of a public telephone, Fig. 2 is an exploded perspective view, Fig. 3 is a sectional view taken along the line of Fig. 1, FIG. 4 is a diagram showing the stored state of the storage rail. 1... Board, 2... Return flapper, 3... Sorting track, 4... Accumulation track, 7... First return track,
8...Second return orbit, 9...Third return orbit,
DESCRIPTION OF SYMBOLS 11... Coin slot, 12... Coin, 19... Return port, 50... Guide protrusion, 51A... First slope, 51B... Second slope, 52... Thrust prevention wall, B... Confluence.

Claims (1)

[Scope of utility model registration request] In the structure of a coin return section in a coin sorting device having a plurality of return tracks, a first inclined first part is provided below the coin input port side of the coin track and returns coins inserted from the input port to the return port during a return operation.
a return track, a substantially vertical second return track provided below the storage track side of the coin track to return the pseudo coin to the return port, and a second return track located below the storage track opposite to the first return track. a third return track that is inclined and returns the coins in the accumulation track to the return port during a return operation, and on a substrate located at the confluence of the first, second, and third return tracks; two slopes that convert the rolling directions of the coins from the first or third and second return tracks into the thickness direction, respectively, and guide the coins to the return port;
Alternatively, a structure of a coin return section characterized in that a guide protrusion is provided that has a guide protrusion that prevents coins from being pushed in from the first return track and guides the coins to the return port.