JPH10277237A - Illegal conduct-preventing structure of pachinko machine circuit substrate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it impossible to recover original state, after illegal conduct has been made to a circuit substrate. SOLUTION: In an illegal conduct preventing structure of a pachinko machine circuit substrate, the front surface of the circuit substrate 1 is covered with a cover 3, where cord 2 projected from the circuit substrate 1 to the front surface is inserted to a first cord hole 4 provided on the cover 3. At this time, the cord 2 inserted to the first cord hole 4 can not move opposite to the inserted direction. And the cord 2 inserted to the first cord hole 4 is stretched as tight as possible, so that the circuit substrate 1 and the cover 3 is not separated by attempt to remove the cover 3 covering the face of the circuit substrate 1. Therefore, if the circuit substrate 1 and the cover 3 is forced to be separated, the marks are left on the cord 2 and the first cord hole 4. And by engaging an end 6 of the cord 2 to a second cord hole 5 provided on the circuit substrate 1, the cord 2 is projected on the face of the circuit substrate 1. Thereby, the marks are also left on the second cord hole 5 and the end 6 of the cord 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing a circuit board of a pachinko machine from being fraudulently used for preventing a circuit board mounted on the pachinko machine from being fraudulently operated.

[0002]

2. Description of the Related Art Pachinko machines in recent years are equipped with a main board mounted with a ROM in which game contents of the pachinko machine are written. In order to prevent the game contents of the pachinko machine from being changed illegally, various anti-fraud structures are applied to the main board.

For example, in a main board shown in FIG. 3, a front side of a main board 101 mounted on a chassis 100 is covered with a cover 1.
02, the four corners are fixed with screws 103, the main board 101 is confined between the chassis 100 and the cover 102, and a certificate stamp 104 is attached and sealed so as to sandwich the chassis 100 and the cover 102. . Once the stamp 104 has been peeled off and pasted again, its traces appear on the stamp 104 and can be clearly checked with the naked eye. Therefore, the cover 102 cannot be removed from the chassis 100 in a confidential manner and is mounted on the main board 101. RO
It is possible to prevent the contents of M105 from being illegally rewritten.

[0004]

However, in the fraud prevention structure provided on the main substrate of FIG. 3, if the certificate stamp 104 is peeled off using a special chemical and attached again, the trace will not appear on the certificate stamp 104. So the chassis 100
It is possible to remove the cover 102 secretly from the
There is a possibility that the contents of the ROM 105 mounted on the main board 101 may be illegally rewritten.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to prevent the illegal operation of a circuit board of a pachinko machine which cannot be returned to its original state after performing an illegal act on the circuit board. The purpose is to provide a structure.

[0006]

According to a first aspect of the present invention, there is provided a pachinko machine having a circuit board mounted on a pachinko machine, comprising: a circuit board mounted on the pachinko machine; A cord that protrudes to the front side, and a cover that covers the front side of the circuit board and has a first code hole through which the cord is irreversibly inserted, and when the cover covers the front side of the circuit board, The code on the circuit board is inserted into the first code hole of the cover in a state where the cord is stretched to the minimum length, thereby preventing improper operation on the circuit board.

According to a second aspect of the present invention, there is provided a pachinko machine circuit board fraud prevention structure according to the first aspect, wherein the second code hole provided in the circuit board is provided. The one end of the cord is locked so that the cord protrudes toward the front side of the circuit board. According to a third aspect of the present invention, there is provided a pachinko machine circuit board fraud prevention structure according to claim 1 or 2, wherein the circuit board is a main board. It is characterized by.

In the structure for preventing unauthorized access of a circuit board of a pachinko machine according to the present invention having such a configuration, the front side of the circuit board is covered with a cover, and a cord projecting from the circuit board to the front side is provided with a cover. Through the first code hole provided in the first hole. At this time, the cord passed through the first cord hole cannot move in the direction opposite to the direction passed.

Further, since the cord passed through the first cord hole is stretched to the shortest length, even if the cover covering the front side of the circuit board is to be removed, the space between the circuit board and the cover is opened. Never. Further, even if the cover is rotated, the cover comes into contact with the circuit board, so that a part of the front side of the circuit board cannot be exposed. Therefore, if the connection between the circuit board and the cover is forcibly expanded, the cord or the first
The trace will remain in the code hole. In addition, when one end of the cord is engaged with the second cord hole provided on the circuit board, and the cord is projected to the front side of the circuit board, the trace is also formed on the second cord hole or one end of the cord. Remains.

That is, in the structure for preventing unauthorized access to a circuit board of a pachinko machine according to the present invention, if the cover for covering the front side of the circuit board is removed, it is impossible to recover the traces clearly remaining in the cord or the first cord hole. Since it becomes possible, it is impossible to return to the original state after performing wrongdoing on the circuit board.

Further, when one end of the cord is engaged with the second cord hole provided in the circuit board and the cord is projected to the front side of the circuit board, the cover for covering the front side of the circuit board is removed. For example, since the trace is clearly left at one end of the cord or the second cord hole and cannot be restored, it is impossible to return to the original state after performing an illegal act on the circuit board.

In particular, when the circuit board is the main board, the ROM in which the game contents of the pachinko machine are written is mounted on the front side of the main board, so that the game contents of the pachinko machine are illegally changed. There is no.

In order to make the cord passed through the first cord hole as short as possible, even if the cover covering the front side of the circuit board is to be removed, the space between the circuit board and the cover is opened. The reason for this is to prevent illegal acts on the circuit board from the fact that the code passed through the first code hole is not in the shortest state, and the cover is shifted with respect to the circuit board during that time. Even if a gap can be formed in the first code hole, the code passed through the first code hole does not need to be strictly shortened as long as the gap does not allow illegal acts on the circuit board. Therefore, even in such a case, it can be said that the cord passed through the first cord hole is in the shortest state.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross section of a structure for preventing unauthorized access to a circuit board of a pachinko machine according to the present embodiment. As shown in FIG. 1, in the structure for preventing unauthorized access of a circuit board of a pachinko machine according to the present embodiment, a second circuit board is mounted on the pachinko machine.
A cord hole 5 is provided, and the cord 2 is inserted from the back side of the circuit board 1 toward the front side. At this time, since the one end 6 of the cord 2 is locked in the second cord hole 5 of the circuit board 1, the cord 2 can be protruded from the front side of the circuit board 1.

The circuit board 1 on which the cords 2 are projected is mounted on a chassis 7 and is fixed from the front side of the circuit board 1 with screws (not shown). Further, the front side of the circuit board 1 is covered with a cover 3 and fixed with screws (not shown). The cover 3 is provided with a first cord hole 4, through which a cord 2 projecting from the front side of the circuit board 1 is passed.

At this time, since the first code hole 4 of the cover 3 is located directly above the second code hole 5 of the circuit board 1, by pulling the cord 2 protruding from the first code hole 4 of the cover 3, The code 2 can be set in the shortest state. Further, since the projections connected to the cord 2 and the first cord holes 4 of the cover 3 are engaged with each other, the cover can be passed from the inside to the outside of the cover, but in a direction opposite to the passing direction. Can not move to.

Accordingly, the cover 3 covering the front side of the circuit board 1
The only way to remove the cover 2 is to cut the cord 2 protruding outside the cover 3 and release the connection between the protrusion of the cord 2 and the first cord hole 4 of the cover 3. Therefore,
After that, even if the cover 3 is returned to the original state, FIG.
As shown in (1), the cut cord 2 cannot protrude to the outside 8 of the first cord hole 4 of the cover 3 and cannot be returned to its original state (see FIG. 1).

That is, the trace is left at the tip of the cord 2. Furthermore, the trace remains on the outer side 8 of the first cord hole 4 of the cover 3. When the cover 3 covering the front side of the circuit board 1 is removed without cutting the cord 2 protruding outside the cover 3, the protrusion of the cord 2 and the first code hole 4 of the cover 3 are engaged with each other. , The trace is left in the cord 2 and the first cord hole 4. At this time, if a tensile force acts on the cord 2 protruding outside the cover 3, one end 6 of the cord 2 is pressed against the second cord hole 5 of the circuit board 1, and the second cord hole 5 and the cord 2 The trace will remain on one end 6.

As described in detail above, in the structure for preventing unauthorized access to the circuit board of the pachinko machine according to the present embodiment, the front side of the circuit board 1 is covered with the cover 3.
The cord 2 protruding from the front side to the front side is passed through a first cord hole 4 provided in the cover 3. At this time,
The cord 2 passed through the first cord hole 4 cannot move in a direction opposite to the direction in which the cord 2 is passed.

Further, since the cord 2 passed through the first cord hole 4 is in the state of being stretched to the shortest, even if the cover 3 covering the front side of the circuit board 1 is to be removed, the circuit board 1
There is no opening between the cover and the cover 3. Further, even if the cover 3 is rotated, the cover 3 comes into contact with the circuit board 1, so that a part of the front side of the circuit board 1 cannot be exposed. Therefore, when the space between the circuit board 1 and the cover 3 is forcibly expanded, the trace is left in the cord 2 or the first cord hole 4. Also, the second code hole 5 provided in the circuit board 1
The one end 6 of the cord 2 is locked to the
Are protruded toward the front side of the circuit board 1, so that traces also remain on the second code hole 5 and one end 6 of the code 2.

That is, in the structure for preventing the unauthorized use of the circuit board of the pachinko machine according to the present embodiment, if the cover 3 covering the front side of the circuit board 1 is removed, the trace is clearly left in the cord 2 or the first cord hole 4. It is impossible to restore the original state after performing an illegal act on the circuit board 1.

The second code hole 5 provided in the circuit board 1
The one end 6 of the cord 2 is locked to the
Is projected to the front side of the circuit board 1. If the cover 3 that covers the front side of the circuit board 1 is removed, the trace is
It is impossible to restore the circuit board 1 after it has been illegally left on the one end 6 or the second code hole 5 and cannot be restored.

In particular, when the circuit board 1 is the main board, the ROM in which the game contents of the pachinko machine are written is mounted on the front side of the main board, so that the game contents of the pachinko machine are illegally changed. Never.

It should be noted that the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist of the present invention. For example, in the structure for preventing fraudulent use of a circuit board of a pachinko machine according to the present embodiment, a commercially available binding cord that does not return may be used as the code 2 to be inserted into the second code hole 5 of the circuit board 1. At this time, the same code hole provided in the binding cord is used as the first code hole 4 of the cover 3.

Further, in the structure for preventing fraudulent use of the circuit board of the pachinko machine according to the present embodiment, the cord 2 is inserted into the second code hole 5 of the circuit board 1 from the back side of the circuit board 1 to the front side. One end 6 is the second code hole 5 of the circuit board 1.
Although the cord 2 is protruded from the front side of the circuit board 1 by locking the cable 2, the cord 2 may be directly fixed to the front side of the circuit board 1.

Further, a code hole is also provided in the chassis 7, and the code 2 is inserted in the order of the code hole of the chassis 7 and the second code hole 5 of the circuit board 1, and one end 6 of the code 2 is inserted into the code hole of the chassis 7. The cord 2 may be protruded from the front side of the circuit board 1 by locking.

[0027]

According to the structure for preventing fraudulent use of a circuit board of a pachinko machine of the present invention, if the cover that covers the front side of the circuit board is removed, it is impossible to recover the traces clearly remaining in the cord or the first cord hole. Since it becomes possible, it is impossible to return to the original state after performing wrongdoing on the circuit board.

When one end of the cord is engaged with the second cord hole provided in the circuit board, and the cord is projected to the front side of the circuit board, the cover for covering the front side of the circuit board is removed. For example, since the trace is clearly left at one end of the cord or the second cord hole and cannot be restored, it is impossible to return to the original state after performing an illegal act on the circuit board.

In particular, when the circuit board is the main board, the ROM in which the game contents of the pachinko machine are written is mounted on the front side of the main board, so that the game contents of the pachinko machine are illegally changed. There is no.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a structure for preventing unauthorized access to a circuit board of a pachinko machine according to the present embodiment.

FIG. 2 is a cross-sectional view illustrating a structure for preventing fraudulent use of the circuit board of the pachinko machine according to the present embodiment, and is a diagram illustrating a state after performing an illegal act on the circuit board.

FIG. 3 is an assembly view showing a structure for preventing unauthorized operation of a circuit board of a conventional pachinko machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main board 2 Cord 3 Cover 4 First cord hole 5 Second cord hole 6 One end of cord

Claims (3)

[Claims] 1. A circuit board mounted on a pachinko machine, a cord protruding from the circuit board to a front side thereof, and a first code hole for covering the front side of the circuit board and passing the cord irreversibly. A cover provided on the circuit board, wherein when the cover covers the front side of the circuit board, the cord of the circuit board is passed through a first code hole of the cover in a state where the cord is stretched to the shortest length, A fraud prevention structure for a circuit board of a pachinko machine, which prevents fraudulent activities. 2. The structure for preventing fraudulent use of a circuit board of a pachinko machine according to claim 1, wherein one end of the code is locked in a second code hole provided in the circuit board, thereby connecting the code to the circuit board. A fraud prevention structure for a circuit board of a pachinko machine characterized by being protruded to the front side of a pachinko machine. 3. The structure for preventing fraudulent use of a circuit board of a pachinko machine according to claim 1, wherein the circuit board is a main substrate.