JP2503939Y2 - Coil type coin discriminator - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a coin sorting device for use in a vending machine, a money changing machine, a service device, etc. The present invention relates to a coil type coin discriminating device for discriminating between a coin type and a coin type.

[Conventional technology]

Conventionally, some coin sorting devices use a coil type coin discriminating device which is an electronic discriminating device without using a mechanical discriminating device such as a cradle or a deflector in order to improve the coin sorting accuracy. .

FIG. 6 is a fragmentary sectional view of a coin sorting device 2 equipped with the above-described conventional coil type coin discriminating device 1.

The coin sorting device 2 is composed of a main plate 3 made of a hard polymer material, and the main plate 3 is openably and closably covered by a gate plate 4 also made of a hard polymer material. ing. A coin slot 5 is formed on the upper left side of the main plate 3.

The coin slot 5 communicates with a coin passage 6 inclined to the right in the drawing. A part of the coin passage 6 is composed of a gate rail 4a fixed to the gate plate 4.

On the other hand, a coil type coin discriminating device 1 for discriminating the authenticity and denomination of the coin A passing through the coin passage 6 is disposed downstream of the coin passage 6.

This coil type coin discriminating apparatus 1 includes an oscillating coil 7 and a receiving coil 8 which are coil type electronic selecting means arranged at a predetermined interval and facing each other as shown in FIG. 7 which is a sectional view taken along line BB of FIG. And a housing 9 for accommodating the oscillation and reception coils 7 and 8 and a coin passage 6a which is a part of the coin passage 6 is integrally formed between the accommodated oscillation and reception coils 7 and 8. There is. The housing 9 is fixed to a sub plate 10 that covers the back surface of the main plate 3. When the sub plate 10 is attached to the main plate 3, the housing 9 projects into the coin passage 6 through the hole 3a (FIG. 6) formed in the main plate 3.

According to the coil type coin discriminating apparatus 1 described above, as shown in FIG. 7, the coin A is placed between the oscillation coil 7 and the receiving coil 8.
, The detection (attenuation) voltage between the oscillating coil 7 and the receiving coil 8 varies depending on the type of coin. Therefore, the reference (attenuation) voltage and the permissible range which are measured and stored for each coin in advance, and the coil type coin discriminating apparatus 1 Detection (decay) detected from
By comparing with the voltage, it is possible to make a coin authenticity determination and a denomination determination.

By the way, in the above-mentioned coil type coin discriminating apparatus 1, since the housing 9 for accommodating the oscillation and reception coils 7 and 8 is integrally formed, the interval of the coin passages 6a formed therein is always unchanged, Therefore, for example, the coin C deformed as shown in FIG. 8 in which the same parts as those in FIG.
When the coin passage 6a is clogged when passing through the coin passage 6a, the jammed coin C must be removed from the housing 9 by directly inserting a jig such as a screwdriver into the passage 6a. There was a drawback that the work was extremely complicated.

Therefore, in order to solve the above-mentioned problems, the applicant of the present application has proposed a coil type coin discriminating apparatus 11 as shown in the perspective view of the main part of FIG. 9 in which the same parts as those in FIG.

The coil type coin discriminating device 11 has first and second casings 12 and 13 which are divided into two parts with a coin passage 6a as a boundary, and the oscillation coil 7 is provided in one of the first casings 12. The receiving coil 8 is housed in the other second housing 13. Also, of the two separate housings 12 and 13, the first housing 12 is rotatably supported by the second housing 13 about a shaft 14, and the shaft 14 is further supported by the shaft 14. The first casing 12 is normally urged so as to be spaced apart from the second casing 13 about the shaft 14 by the elastic force of the coil spring 15 which is a wound urging means. Therefore, the first and second casings 12 and 13 are brought into close contact with each other on the gate plate 4 against the elastic force of the coil spring 15, and the coin passage 6a is formed therebetween, so that the first passage is formed.
A protrusion 4b is formed so as to contact one surface 12a of the housing 12. When the gate plate 4 covers the coil type coin discriminating apparatus 11, the protrusion 4b contacts one surface 12a of the first casing 12 and presses the first and second casings 12 and 13 together. The lower end is brought into close contact with the coin passage 6a.

According to the coil type coin discriminating apparatus 11 described above, when the pressing of the first casing 12 by the protrusion 4b of the gate plate 4 is released, the first casing 12 is urged by the coil spring 14,
As shown in FIG. 10 which is a cross-sectional view of the main part of FIG. 9, the coin passage 6a is rotated counterclockwise about the shaft 14 to release the coin passage 6a, so that the deformed coin C stuck in the coin passage 6a is cured. Without using a tool or the like, the coin drops by its own weight from below the coin passage 6a and is easily removed from the coil type coin discriminating apparatus 11.

Reference numeral 16 in FIG. 10 is an adjusting screw having a spherical tip, which is screwed to the first housing 12 and adjusts the interval of the coin passage 6a.

[Problems to be solved by the device]

By the way, according to the above-mentioned coil type coin discriminating apparatus 11, the close contact between the first and second casings 12 and 13 is not shown around the shaft 17 as shown in FIG. 11 shown in the top view of FIG. This is performed by the protrusion 4b of the gate plate 4 which is biased clockwise by the spring. Therefore, the length of the protrusion 4b is formed to be longer than the preset length due to factors such as machining error. And the width W of the coin passage downstream of the coin input port 5 formed by the gate plate 4 and the main plate 3 is widened, and a gap is formed therein, so that the input coin is clogged in the gap and stable coin selection is performed. There is a risk that it will not be possible.

In view of the above-mentioned circumstances, the present invention accommodates the coil-type electronic selection means and presses one of the two divided housings.
An object of the present invention is to provide a coil type coin discriminating apparatus which absorbs a processing error of a protrusion formed on a gate plate as much as possible.

[Means for solving the problem]

In order to achieve the above-mentioned object, in the present invention, a coil type electronic sorting means used for determining whether a coin is inserted or not and coin denomination is formed separately from each other, and at least one of the coil type electronic sorting means is formed. A first and a second housing that accommodates the first housing, a shaft that rotatably supports the first housing with respect to the second housing so as to be rotatable about an upper end, and the first housing is normally mounted around the shaft. An urging unit that urges the first and second casings to be separated from each other, and a gate plate that covers the first and second casings protrudes from the urging unit and resists the urging force of the urging unit. A coil type coin discriminating apparatus having a protrusion that abuts on one surface of the first casing and normally abuts the first and second casings to form a coin passage therebetween. The contact stroke of the protrusion on the one surface of the first casing at the portion where the protrusion contacts. So that disposing the damper means to yield.

[Action]

According to the above-described coil type coin discriminating apparatus, since the damper means for absorbing the contact stroke of the protrusion is arranged on the one surface of the first casing with which the protrusion of the gate plate abuts, the damper is formed on the gate plate. Even if the length of the formed protrusion is formed longer than the preset length due to factors such as machining error, the machining error is absorbed by the damper means, and therefore the gate plate and the main plate are absorbed. The width of the coin passage formed between and does not widen.

〔Example〕

Hereinafter, one embodiment of the coil type coin discriminating apparatus according to the present invention will be described in detail.

FIG. 1 shows a coil type coin discriminating apparatus 20 according to the present invention.
9 is a perspective view of a main part of the coin sorting device 2 equipped with the same as in FIG.

In this coil type coin discriminating apparatus 20, the one surface 12a of the first casing 12 that accommodates the oscillation coil 7 that constitutes a part of the coil type electronic selecting means, and the portion where the protrusion of the gate plate described later contacts A damper means 21 is provided.

As shown in FIG. 2 which is an enlarged cross-sectional view of an essential part of FIG. 1, the damper means 21 includes a coil spring 22 arranged in a hole 12b formed in the first housing 12 and an opening of the hole 12b. And a cap 23 slidably disposed in the depth direction of the hole 12b.

The cap 23 is always urged by the elastic force of the coil spring 22 so as to move to the right side in the drawing.

The coil type coin discriminating apparatus 20 of the present invention includes the coil type electronic selecting means, the first and second casings 12, 13,
It consists of a gate plate and protrusions.

Next, the operation of the damper means 21 arranged in the above-mentioned coil type coin discriminating apparatus 20 will be described and the configuration will be described in more detail.

According to the coil type coin discriminating apparatus 20 having the damper means 21 described above, as shown in FIG.
When the coil type coin discriminating apparatus 20 is covered by the above, the projection 4b projectingly provided on the gate plate 4 comes into contact with the damper means 21, and the pressing force thereof causes the first and second casings 12 and 13 to move at their lower ends. The coin passages 6a are formed in close contact with each other.

At that time, when the length of the protrusion 4b is formed longer than a preset length due to factors such as machining error, as shown in FIG. 4 which is an enlarged cross-sectional view of the main part of FIG. Due to the biasing force of the projection 4b, the cap 23 has a predetermined distance on the left side of the drawing against the elastic force of the coil spring 22, that is, the projection 4b is formed longer than the length previously set by factors such as processing error. It moves by the stroke and absorbs the machining error.

Therefore, as shown in FIG. 5 which is a top view of FIG.
The protrusion 4b of the gate plate 4 rotated clockwise by the urging force of a spring (not shown) about the shaft 17 to bring the second housing 12 and 13 into close contact with one surface of the first housing 12. Even when the protrusion 4b is formed to have a length longer than a preset length due to factors such as a machining error when contacted, the length of the protrusion 4b increased by the machining error is shown in FIG. Since it is absorbed by the damper means 21 as shown, the width W of the coin passage downstream of the coin slot 5 formed by the gate plate 4 and the main plate 3 does not increase. That is, if the protrusion 4b is long due to a processing error, the fourth
It is configured so that the protrusion 4b can be recessed further than that shown in the figure.

According to the above-described embodiment, the width of the coin passage does not always fluctuate even if the damper means 21 not only absorbs a processing error but also throws in coins (continuous throwing in), shakes by the return lever, and the like.

It should be noted that, in the above-mentioned embodiment, the coil type electronic selection means is described in detail with the oscillation and receiving coils 7 and 8, but the present invention is not limited to the above-mentioned embodiment.
The present invention may be applied to a device that determines the authenticity of coins to be inserted and the denomination of coins by changing the impedance of one coil. In this case, one coil constituting the coil type electronic selection means may be housed in either one of the first and second housings 12 and 13 which are separated from each other. Become.

[Effect of device]

As described above, in the coil type coin discriminating apparatus of the present invention, the damper means for absorbing the contact stroke of the protrusion is arranged on the one surface of the first housing at the portion where the protrusion of the gate lever contacts. Therefore, the width of the coin passage formed between the gate plate and the main plate is widened even when the length of the protrusion is formed longer than the preset length due to factors such as machining error. Therefore, since a gap does not occur in the coin passage formed between the gate plate and the main plate, the inserted coin does not get stuck in the gap, and therefore a coin sorting device having a stable sorting function is provided. You can Further, when the coin discrimination coil is divided into two, the distance between the coils is always kept constant by the pressing force of the gate plate, but when the coin is inserted from the coin insertion slot, the dropping force of the coin is dropped. This causes the gate plate to be pushed back somewhat, and as a result, the distance between the discrimination coils becomes wider, which may lower the reference (reception) voltage and cause erroneous discrimination, but in the present invention, the discrimination coil is pressed against the gate plate. Since a protrusion is provided on the coil side at the portion where the protrusion comes into contact with the coil, the protrusion is always held in the damper in a state of being slightly depressed. For some reason, even if it is pushed back to some extent, it is possible to always keep a constant distance between the coils of the discrimination coil by only returning the part sunk by the damper to some extent.
Further, since the gate plate is opened by pressing the return lever, it is possible to prevent fluctuations between the determination coils by touching the return lever carelessly with the damper.

[Brief description of drawings]

FIG. 1 is a fragmentary perspective view of a coin sorting device equipped with a coil type coin discriminating device according to the present invention, FIG. 2 is an enlarged sectional view of the essential part of FIG. 1, and FIG. FIG. 4 is an enlarged sectional view of an essential part of the coin sorting device showing a state in which the coin discriminating device is covered, FIG.
FIG. 6 is a top view of FIG. 3, FIG. 6 is a fragmentary sectional view of a coin sorting device equipped with a conventional coil type coin discriminating device, and FIGS. 7 and 8 are BB sectional views of FIG. FIG. 9 is a fragmentary perspective view of a coin sorting apparatus equipped with a coil type coin discriminating apparatus of another conventional example, FIG. 10 is a sectional view of the principal portion of FIG. 9, and FIG. 11 is a top view of FIG. Is. 4 ... Gate plate, 4b ... Protrusion, 6a ... Coin passage,
7 ... Oscillation coil (coil type electronic sorting means), 8 ... Receiving coil (coil type electronic sorting means), 12 ... First casing, 13 ... Second casing, 14 ... Axis, 15 ...... Biasing means (coil spring), 20 …… Coil type coin discriminating device, 21 …… Damper means.

Claims (1)

(57) [Scope of utility model registration request] 1. A first and a first coil-type electronic sorting means, which are formed separately from at least one of the coil-type electronic sorting means used for determining whether a coin is inserted or not and whether or not a coin denomination is used. A second housing, a shaft for rotatably supporting the first housing with respect to the second housing around an upper end thereof, and the first and second housings usually around the shaft. Urging means for urging the first housing and the gate plate covering the first and second housings to project from each other, and resist the urging force of the urging means. In a coil type coin discriminating apparatus having a protrusion that abuts on one surface and always abuts the first and second casings to form a coin passage therebetween, a portion of the gate plate where the protrusion abuts A damper means for absorbing the contact stroke of the protrusion is arranged on one surface of the first casing. A coil type coin discriminating apparatus characterized in that.