JPS6315391A - Illegal operation preventing mechanism by string-hung coin - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] ゛ [Field of industrial application] The present invention is a coin sorting device for use in public telephones, automatic vending machines, change machines, etc., which is suitable for use in coin sorting devices and preventing manipulation. Regarding the mechanism.

[Conventional technology]

Generally, coin sorting devices are equipped with various sorting mechanisms to allow only genuine coins to be used for equipment operation, but as a method for non-IE use using such genuine coins,
There is a method of unauthorized use called so-called string hanging. This is done by fixing a hanging string or the like to one end of the coin with adhesive or other material, inserting it into the coin slot, and attempting to retrieve the coin by pulling through the string after the end of the call or after taking out the product. Something,
@This is a typical example of high-quality abuse.

In order to prevent such unauthorized use of string-hung coins, for example, thread cutting means such as a cutter that can cut the hanging string of string-hung coins may be installed at appropriate locations in the coin sorting device or the coin accumulation track, or Thread Hanging Coin Hanging String 1 that can be hung by pinching it at an appropriate point on the track mentioned above.
Various devices have been known that are equipped with a heat means.

[Problem that the invention seeks to solve]

However, in the conventional structure as described above, since the thread cutting means and the hook are provided in a fixed track, the hanging thread of the thread-hanging coin is caught and held by these. This often causes coins to get jammed in the track, leading to problems such as the operation of the main equipment itself. In the former case, it not only leads to higher costs.

Due to its properties as a knife, it may become dull and require frequent maintenance, inspection and replacement work, and it is desired to take some measures that can eliminate these problems.

[Means to solve the problem]

In order to meet such demands, the unauthorized operation prevention mechanism using string-suspended coins according to the present invention consists of a board that is erected in a substantially overlapping state, and a system that is pivotably supported with respect to the board so as to be able to swing freely. A coil spring is interposed between the coil spring and the side plate which is parallel to the substrate at a predetermined distance and biased to form a coin track, and is provided at a corner facing the bent part of the coin track. This is how it was done.

[Function] According to the present invention, during normal coin sorting, the coil spring maintains a compressed state by the base plate and the side plate, and when a string-suspended coin is inserted in this state, the coil spring is wound into a wire. It can be held in place by being wedged between the coil springs, and the hanging line, which is held in place by this coil spring, can be extended in the axial direction by releasing the side plate from the base plate in conjunction with the coin return operation. The locked state is released by the coil spring which releases the A-wire, and the product is dropped and returned.

〔Example〕

Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

Figures 1 to 4 show an embodiment of the mechanism for preventing unauthorized operation using string-suspended coins according to the present invention. To explain in more detail, the reference numeral 2 is a board that is installed in an upright state in a device housing such as a public telephone, and
A coin slot 3 is opened and provided on the upper end side. A flapper 5 serving as a side plate is pivotally supported on the upper end side of the substrate 2 via a support shaft 4 so as to be able to swing and rotate. The structure is such that a coin sorting track 6 is formed between the flappers 5. Here, this flapper 5 opens and closes the track 1a6 so that when returning coins, surplus coins located in this track 6 can be returned, and coins and foreign objects clogged in this track 6 can be removed. It is normally biased so as to form a track 46 parallel to the substrate 2 at a predetermined interval. Although not shown, the coin sorting track 6 is equipped with sensors for sorting coin materials, etc. Further, on the downstream side of the track 6, there are coin storage tracks, return tracks, and other mechanical parts necessary for this type of device. It is also well known that these are provided as appropriate.

Now, according to the present invention, (1) in the coin sorting device 11 having the configuration as described above, the coin sorting track 6 is configured).
& The bent portion 6a of the track 6 between the plate 2 and the flapper 5
At the corner portion 6b facing the substrate 2. 11-. on the flapper 5 side. It is characterized in that it is provided with a tension coil spring 10 interposed therebetween.

That is, the present invention uses a tension coil spring 10 as a locking means capable of locking the hanging string 12 within the track 6, in order to prevent unauthorized operation by the string hanging coin 11 in the coin sorting bag 2tl. As shown in FIGS. 2, 3(a) and 3(b), the hanging string 12 is inserted into the wedge-shaped groove formed between the windings of the coil spring 10 in a compressed state and held therebetween. Next, let's hook the hanging string 12 and stop the string-hanging coin 11 on the tip side in the middle of the track 6 to prevent the string-hanging coin 11 from entering the accumulation track side and prevent unauthorized manipulation. That is. According to the present invention, by providing one end of the coil spring lO having such a check function on the board 2 side and the other end on the flapper 5 side, the coil spring lO is linked to the opening/closing operation of the flapper 5 when coins are returned. This causes the coil spring 10 to be compressed or expanded, thereby causing the hanging string 12 of the string-hanging coin 11 to be held in place as described in 1-1.
The space between the windings of the coil spring 10 held by F is opened to allow these string-hanging coins 11 and their hanging strings 12 to fall and return, thereby creating a structure in which only coins get jammed in the track 6 as in the conventional case. This is what I did.

Here, in this embodiment, the coil spring 10 for locking the hanging line 12 as described above also serves as a mechanism part as a biasing means for biasing the flapper 5 toward the board 2 side. This figure shows a configuration in which the number of parts can be reduced.

However, the present invention is not necessarily limited to this, and a conventionally well-known torsion spring may be provided separately as a biasing means for the flapper 5. In this case, it is easily possible to use a compression coil spring. be understood.

In the configuration described below, during normal coin sorting, the coil spring 10 maintains a compressed state by the base plate 2 and the flapper 5, and when a string-suspended coin 11 is inserted in this state, the string 12 is suspended. It is wedged between the windings and held between them. (See FIG. 3) In such a locked and held state, the thread-hanging coin 11 stops midway along the coin sorting track 6, and is prevented from entering the coin storage section. Furthermore, like this, the hanging line 12 is connected halfway! If an unauthorized person pulls the hanging string 12 from the outside in the suspended state, the pulling force will cause the hanging string 12 to be cut leaving the part held by the coil spring 10, and the hanging string 12 will be cut by the string hanging coin 11. It is possible to easily and appropriately prevent unauthorized operations.

In addition, as described above, the hanging line 12 that is tied by the coil spring 10 and the line hanging stiffness at its tip are
As shown in FIG. 4, when the flapper 5 is released from the base plate 2 by the coin return operation of the device, the coil spring 10 is expanded in the axial direction and the windings are opened in conjunction with this. The +h state is released and it falls,
The coins are returned via the return track 1^, etc., and the conventional problems such as coins getting jammed in the coin track are eliminated.

Here, as the opening/closing mechanism by the coin return operation on the main device side of the flapper 5 mentioned above, for example, the actual opening/closing 57-114
As shown in Publication No. 485, etc., various structures are conceivable, as is well known in the past. In the machine, the lever and link configuration may be such that the operating force of the return lever can open the flapper 5 against the urging force.

In addition, the coil spring 10 provided at the corner portion 6b facing the track bending portion 6a is caught by the hanging string 12 of the string-hanging coin 11, and is further subjected to tensile force by an unauthorized operator, so that the coil spring 10 is moved in the radial direction. This may lead to problems such as bending and deformation, but this
This can be easily and appropriately prevented by providing a guide wall or the like on the side wall of the track 16b to hold it.

Note that the present invention is not limited to the structure of the embodiment described above, and the shape, structure, etc. of each part of the coin sorting device 1 may be modified and changed as appropriate. In addition, the coil spring lO, which characterizes the present invention, is disposed in the following manner: 1; It is not limited to the bent portion of the coin sorting track directly under the coin input port in the above-mentioned embodiments, but can be placed anywhere in the coin track leading to the coin storage section. Of course, it may be provided at an appropriate bent portion. In short,
The coil spring 10 may be provided interposed between the flapper (side plate) 5 and the base plate 2, which are opened and closed in conjunction with the return operation of the device 1.

〔Effect of the invention〕

As explained above, according to the unauthorized operation prevention mechanism using string-suspended coins according to the present invention, the bending portion of the coin trajectory is located between the substrate forming the coin trajectory and the side plate provided on the substrate so as to be openable and closable. Because the coil spring is interposed in the facing corner, the structure is simple and inexpensive.

The hanging string of a string-hung coin can be easily and appropriately hooked in the middle of the coin trajectory to hold it in place, thereby preventing the string-hung coin from entering the coin storage section and preventing its unintended operation. Not only can you easily and appropriately obtain +1 = L, but also release the state of the above-mentioned hanging line in connection 1 in conjunction with the return operation of the device, and cause the hanging line to fall and return to the return track side along with the string-hanging coins. Therefore, there are various excellent effects such as eliminating the risk of coins getting jammed in the track as in the conventional case.

[Brief explanation of drawings]

Fig. 1 is a front view of the main parts of a coin sorting device showing an embodiment of a mechanism for preventing unauthorized operation using string-hanging coins related to unreleased 1-1, Fig. 2 is an enlarged cross-sectional view of the main parts, and Fig. 3 ( a) and (b) are diagrams for explaining the state in which the hanging line is locked by the coil spring, and FIG. 4 is an explanatory diagram of the operation. l... Coin sorting device, 2... Board, 4...
Spindle, 5... Flapper, 6... Coin sorting track (
coin track), 6a... track bent part, 6b... corner part, 10... coil spring, 11...
Thread hanging coin, 12...Hanging thread. Patent applicant Tamura Electric Manufacturing Co., Ltd. Agent Masaki Yamakawa (and 2 others) Figure 1 Figure 2 Figure 3 (a) Figure 4

Claims (1)

[Claims] A side plate is swingably supported on a substrate erected in a substantially vertical state, and is normally placed parallel to the substrate at a predetermined distance and biased so as to form a coin trajectory. An unauthorized operation prevention mechanism using a string-suspended coin, characterized in that a coil spring is provided at a bent portion of the coin track between a side plate and a base plate.