JP2004280716A - Illicitness preventive device of coin hopper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the illicit acquisition of coins by preventing the forced movement of a shutter for closing an outlet port, thereby preventing the creation of a state as if a counter sensor is detecting the coins by inserting a tool from the outlet port. <P>SOLUTION: This illicitness preventive device of a coin hopper comprises a delivery device operated by a motor; the counter sensor disposed in a coin passage from the delivery device to the outlet port; the shutter selectively movable to a closing position and an opening position of the inlet port, the shutter having a slide pin; a cam groove to which the slide pin is slidably inserted to guide the shutter to the closing position and the opening position, the cam groove having a retaining part for retaining the shutter in the closing position; and a moving device for selectively moving the shutter to the closing position and the opening position in interlocking with on/off of the motor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a coin hopper that divides and discharges coins one by one.
In particular, the present invention relates to a fraud prevention device for a coin hopper that prevents fraud by inserting an appliance from a coin outlet.
It should be noted that the term “coin” used in this specification includes not only coins, which are currencies, but also substitute coins such as medals and tokens of game machines or the like.
[0002]
[Prior art]
The present applicant has proposed in Japanese Patent Application No. 2001-177933 (Japanese Patent Application Laid-Open No. 2002-366999) a technique for preventing illegal acquisition of coins by inserting an instrument into a coin outlet of a coin hopper.
In this technology, a shutter device is arranged at a coin outlet of a coin hopper, and the shutter device is configured to move in conjunction with the operation of a coin sending device. When the coin hopper does not eject a coin, the shutter causes the coin to move. The outlet is closed.
When the fixing pin is inserted into the oblong hole formed in the shutter and the shutter is moved in the longitudinal direction, the shutter slides laterally by the fixing pin and the oblong hole, thereby closing the coin outlet. Is disclosed in that embodiment.
[0003]
In this embodiment, when the shutter closes the outlet, its position is held by the oblong hole and the fixing pin, so that the instrument is forcibly inserted between the end face of the shutter and the wall of the outlet. As a result, there is a concern that fraud is performed as in the past.
[0004]
[Problems to be solved by the invention]
In view of the above-mentioned concerns, the present invention prevents the shutter for closing the outlet from being forcibly moved, so that it is impossible to insert a device from the outlet and establish a state where the count sensor is detecting coins. By doing so, it is an object to prevent the fraud.
A second object is to provide the fraud prevention device at a low cost by using a simple structure.
[0005]
[Means for Solving the Problems]
In order to achieve this object, the hopper of the present invention is configured as follows.
A delivery device operated by a motor, a count sensor arranged in a coin passage from the delivery device to the outlet, a selectively movable to a closed position and an open position of the outlet, and a part of the guide device. A shutter configured to engage with a part of the guide device, to guide the shutter to the closed position and the release position, and to include the other portion of the guide device having a holding portion that holds the shutter in the closed position; And a moving device that selectively moves to the closed position and the open position in conjunction with turning on and off of the coin hopper.
[0006]
According to this configuration, when the coin hopper is stopped, the shutter is moved in the longitudinal direction by the moving device.
Thus, the other portion (slide pin) of the guide device is guided by a part (cam groove) of the guide device inclined with respect to the coin path, and the shutter integrated with the other portion (slide pin) of the guide device is opened. The outlet is closed by sliding in a direction perpendicular to the longitudinal direction.
In this closed state, the other part (slide pin) of the guide device is located in the holding portion of a part (cam groove) of the guide device. , The shutter cannot be moved.
[0007]
On the other hand, when a coin is to be thrown out, the moving device operates to slide the shutter in the horizontal direction, thereby opening the throw-out opening.
Therefore, when the hopper has not thrown out coins, the shutter cannot be slid, so that a device cannot be inserted from the throw-out port.
Therefore, the coin cannot be obtained illegally.
[0008]
When the hopper is throwing out coins, it is extremely difficult to insert the tool into the outlet because the coins are being vigorously thrown out from the outlet.
This prevents fraud completely because the outlet cannot be inserted into the outlet since the outlet is closed for substantially the entire period.
[0009]
The present invention is characterized in that a pair of cam grooves, which are part of the guide device, are formed in a guide board, and a pair of slide pins of the shutter, which is another part of the guide device, are slidably located in the cam grooves. The cam groove preferably has a holding portion parallel to the inclined portion inclined with respect to the coin path.
According to this configuration, since the pair of cam grooves formed on the guide board and the slide pin inserted into the pair of cam grooves are simple, they can be manufactured at low cost.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an exploded perspective view of a coin hopper equipped with a fraud prevention device according to an embodiment of the present invention.
FIG. 2 is a plan view of a rotating disk and a base on which the anti-fraud device according to the embodiment of the present invention is mounted.
FIG. 3 is a front view of the anti-fraud device according to the embodiment of the present invention when the shutter is at the release position.
FIG. 4 is a sectional view taken along line XX in FIG. 3. FIG. 5 is a front view of the tamper-proof device according to the embodiment of the present invention when the shutter is in a closed position.
[0011]
The coin hopper 2 includes a roughly base 4, a coin feeding device 8 driven by a motor (not shown), and a storage bowl 10 for storing the coins 5 in a bulk state.
The storage bowl 10 is tightly fixed to the upper surface 12 of the base 4.
The upper surface 12 of the base 4 is inclined, a circular recess 14 is formed in the center, and the rotating disk 6 as the delivery device 8 is arranged.
A plurality of coin through holes 16 are formed at equal intervals in the rotating disk 6, and coins that have fallen into the through holes 16 due to rotation of the rotating disk 6 are pushed by pushing protrusions (not shown) on the lower surface of the rotating disk 6. It is guided by the bottom surface and the peripheral surface of the circular recess 14 and moves together with the rotary disk 6.
An opening 18 is formed in a part of the peripheral surface of the circular recess 14, and the coin 5 is pushed out to the side of the rotating disk 6.
[0012]
A groove 22 is formed following the opening 18 to the left side surface 20 of the base 4.
Since the coin 5 passes through the concave groove 22 as described later, it forms a coin passage 23. A fixed roller 26 rotatable on the fixed shaft 24 is arranged near the opening 18 in the groove 22.
In the concave groove 22, a moving roller 28 is arranged at a predetermined distance from the fixed roller 26.
The moving roller 28 is rotatably attached to a distal end of a moving shaft 34 fixed to a lever 32 supported swingably on a shaft 30 fixed to the back surface of the base 4.
[0013]
The lever 32 is provided with a rotational force in a counterclockwise direction in FIG. 2 by a spring (not shown), but is normally stopped at the position shown in FIG. 2 by a stopper (not shown).
At this time, the distance between the fixed roller 26 and the moving roller 28 is smaller than the diameter of the coin 5.
When the coin 5 is located between the fixed roller 26 and the moving roller 28, the moving roller 28 pivotally moves the arc-shaped long hole 36 of the base 4 clockwise in FIG.
At this time, the action piece 38 of the lever 32 is detected by the sensor 40 fixed to the back surface of the base 4, and the sensor 40 outputs a detection signal.
[0014]
The moving roller 28, the lever 32, the action piece 38, and the sensor 40 constitute a count sensor 41 of the coin 5.
A guide plate 42 is detachably fixed to an upper portion of the concave portion 22, and an outlet 44 is formed.
Therefore, immediately before the outlet 44, there is a tunnel 46 having a slit-like cross section.
The fixed roller 26 is located in the tunnel 46.
[0015]
Next, the structure of the shutter device 50 will be described with reference to FIGS.
The shutter device 50 includes a shutter 52, a guide device 54 for the shutter 52, and a moving device 56 for the shutter 52.
First, the shutter 52 will be described.
The shutter 52 has a plate shape, and can be moved slightly in the direction parallel to the base 4 and in the direction perpendicular thereto.
A slit-shaped moving hole 58 that crosses the concave groove 22 is formed in the base 4 immediately before the outlet 44.
[0016]
The distal end 60 of the shutter 52 is inserted into the moving hole 58.
In this state, the shutter 52 is positioned so as to cross the entire width of the coin passage 23 as shown in FIG.
A slightly recessed closing groove 62 is formed on the back surface of the guide plate 42 facing the moving hole 58.
Thereby, the front end 60 of the shutter 52 can protrude into the closing groove 62.
When this state is viewed from the outlet 44, the distal end 60 is hidden in the closing groove 62, so that it is extremely difficult to insert an instrument between the distal end 60 and the bottom of the closing groove 62.
[0017]
Next, the guide device 54 will be described.
The guide device 54 has a guide function when the shutter 52 moves.
The guide device 54 includes cam grooves 66 and 68 as a part thereof and slide pins 74 and 76 as other parts.
A guide board 64 having a rectangular cross section extending in a direction perpendicular to the base 4 projects downward from the back surface of the base 4.
A pair of identically shaped cam grooves 66, 68 are formed in the guide board 64.
Since the cam grooves 66 and 68 have the same shape, the cam groove 66 will be described as a representative.
[0018]
The cam groove 66 has an inclined portion 70 inclined with respect to the coin passage 23 and a holding portion 72 parallel to the coin passage 23. The inclined portion 70 and the holding portion 72 have the same width and are continuous. , Angle shape.
The slide pins 74 and 76 pass through the cam grooves 66 and 68 and are slidable.
Since the slide pins 74 and 76 have the same shape, the slide pin 76 will be described as a representative.
The base of the slide pin 74 is fixed to the shutter 52, and the head 78 of the slide pin 74 has a larger diameter than the pin.
The guide board 64 is sandwiched between the head portion 78 and the shutter 52, and the shutter 52 can be moved along the guide board 64 in the longitudinal direction and the direction orthogonal to the coin passage 23.
Therefore, the guide pins 74 and 76 can be fixed to the base 4, and the cam grooves 66 and 68 can be formed in the shutter 52.
[0019]
Next, the structure of the moving device 56 will be described.
It includes a solenoid 80 and a link mechanism 84 for connecting the plunger 82 and the shutter 52 of the solenoid 80.
The plunger 82 is pressed by a spring 90 disposed between the pin 86 and the body 88 so as to protrude from the body 88.
A driven portion 92 is formed integrally with the shutter 52 and extends vertically from the lower end thereof and then rises vertically.
The other end of the link 94 whose one end is pivotally supported by the pin 86 is pivotally supported by the driven part 92 by the pin 96.
[0020]
Next, the operation of the present embodiment will be described.
When the solenoid 80 is not excited, the plunger 82 is protruded by the spring 90, so that the shutter 52 is moved from the position of FIG. 3 to the guide board 64 through the pin 86, the link 94, the pin 96 and the driven part 92 from the position of FIG. The position is pushed to the left and moves in its longitudinal direction.
Thus, the slide pins 74 and 76 are guided by the inclined portion 70 and move closer to the base 4.
Therefore, the shutter 52 traverses the coin passage 23 and is stopped with its tip 60 in contact with the bottom of the closing groove 62.
[0021]
That is, the outlet 44 is closed by the shutter 52, and this position is the closed position 97 of the shutter 52.
At this time, the slide pins 74 and 76 are located on the holding portions 72 of the cam grooves 66 and 68.
The holding portion 72 has a wall surface 99 parallel to the coin passage 23.
Therefore, when the shutter 52 receives a downward force on the coin passage 23 in an attempt to forcibly open it, the slide pins 74 and 76 are pressed almost perpendicularly to the parallel wall surface 99, and are received by the wall surface 99. 52 does not move in its longitudinal direction.
As a result, the shutter 52 is held in the closed position 97.
Therefore, the shutter 52 is not forcibly released by the instrument.
The demagnetization of the solenoid 80 is performed in conjunction with the end of payout of the coin 5.
That is, the operation is performed in conjunction with the end of the operation of the motor of the rotating disk 6.
[0022]
When the solenoid 80 is excited, the plunger 82 is retracted, and the slide pins 74 and 76 are moved rightward from the position in FIG.
Accordingly, the slide pins 74 and 76 are guided by the inclined portion 70 and moved in a direction away from the coin path 23, and are stopped by the lower end of the inclined portion 70.
As a result, the shutter 52 moves downward with respect to the base 4, and the leading end 60 is retracted into the moving hole 58 and exits from the coin passage 23 as shown in FIGS.
This position is the release position 98 of the shutter 52.
The retracting movement of the shutter 52 from the coin passage 23 is performed in connection with the sending out of the coin 5 by the rotating disk 6.
That is, it is performed prior to the start of the operation of the motor that rotates the rotating disk 6.
[0023]
Further, in order to avoid a problem when the shutter 52 is not moved, it is preferable that the sensor detects that the shutter 52 has exited from the coin passage 23 and the coin 5 is sent out by the rotating disk 6 based on the detection.
Further, when the shutter 52 is moved to the closed position 97, the solenoid 80 is demagnetized after the detection signal is output from the sensor 40 after the stop signal of the rotating disk 6, and the coin 5 to be paid out is not disturbed by the shutter 52. It is preferable to do so.
[0024]
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a coin hopper equipped with a fraud prevention device according to an embodiment of the present invention.
FIG. 2 is a plan view of a base and a rotating disk on which the anti-fraud device according to the embodiment of the present invention is mounted.
FIG. 3 is a front view of the fraud prevention device according to the embodiment of the present invention when a shutter is at a release position.
FIG. 4 is a cross-sectional view taken along line XX in FIG. 3. FIG. 5 is a front view of the fraud prevention device according to the embodiment of the present invention when the shutter is at a closed position. .
[0024]
[Explanation of symbols]
8 Sending Device 23 Coin Passage 41 Count Sensor 44 Spout 52 Shutter 56 Moving Device 64 Guide Board 66, 68 Cam Groove 70 Inclined Part 72 Holding Part 74, 76 Slide Pin 97 Closed Position 98 Opened Position

Claims (2)

A delivery device (8) operated by a motor, a count sensor (41) arranged in a coin path (23) from the delivery device (8) to the outlet (44), a closed position (97) of the outlet (44). ) And an open position (98), and a shutter (52) constituting a part (74, 76) of the guide device (54), a part (74) of the guide device (54). , 76) to guide the shutter (52) to the closed position (99) and the release position (98) and to have the holding portion (72) for holding the shutter (52) in the closed position (99). 54) A fraud preventing device for a coin hopper comprising: a second portion (66, 68); and a moving device (56) for selectively moving the shutter (52) to the closed position and the open position in conjunction with turning on and off the motor. The other part of the guide device (54) is a cam groove (66, 68), and a pair of slides which are formed in a pair on the guide board (64) and are part of the guide device (54) of the shutter (52). A pin (74, 76) is slidably positioned in the cam groove (66, 68), and the cam groove (66, 68) is a holding part parallel to the inclined part (70) inclined with respect to the coin path (23). 2. The coin hopper fraud prevention device according to claim 1, further comprising (72).

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