JP2001246112A - Fraudulence act preventing structure for pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fraudulence alteration of a Pachinko machine and to easily find out the fraudulence alteration when it is done. SOLUTION: A cover body 18 which can simultaneously cover the backside of a game board 3 and a game control circuit board 6 is equipped on the a Pachinko machine. The cover body is equipped with a block means 26 to make the Pachinko machine unrestorable once the block means 26 is opened.

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 unauthorized alteration of a pachinko machine and facilitating the detection of unauthorized alteration.

[0002]

2. Description of the Related Art As is well known, a pachinko machine installed in a game arcade can be installed in a game arcade and used as a business only after passing a structural inspection by a predetermined inspection organization. By the way, even for pachinko machines that have passed the inspection,
Modifications such as replacing the ROM of the game control circuit board after installation in the game arcade may be performed. Therefore, in order to prevent such unauthorized modification, the game control circuit board has been conventionally placed in a transparent plastic case, locked, and sealed with seal paper.
Measures were taken to make it easier to find unauthorized mods.

[0003]

However, the illegal remodeling of the pachinko machine is not limited to ROM replacement, but also includes a sensor for detecting a prize ball, a variable prize device, or a signal line or the like on the back of the game board. Since the whole could be subject to remodeling, it was difficult to take countermeasures. Therefore, the present invention prevents such illegal alteration of the pachinko machine and makes it easy to detect the illegal alteration.

[0004]

SUMMARY OF THE INVENTION For this purpose, a structure for preventing unauthorized alteration of a pachinko machine according to the present invention is provided with a cover body which can simultaneously cover the back side of a game board and a game control circuit board, and is once opened to the cover body. Then, a sealing means that cannot be restored is provided. Further, according to the present invention, in the tamper-proof structure, the sealing means is fixed to the back surface of the pachinko machine by a rivet which cannot be removed once it is inserted through a severable fixing part integrally connected to the cover body. It is characterized by the following. Further, in the present invention, in the unauthorized alteration prevention structure, the sealing means sets an padlock on the engagement ring by passing an engagement ring protruding from the back of the pachinko machine through an engagement hole formed in the cover body. There is a feature.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the back of the pachinko machine according to the present invention, FIG. 2 is a back view of the pachinko machine with its cover closed, FIG. 3 is an enlarged cross-sectional view taken along line AA, FIG. FIG. 5 is an enlarged cross-sectional view taken along the line CC of FIG.
Is a front frame pivotally attached to one side of the outer frame so as to be openable and closable, and 3 is a game board provided at an opening of the front frame. As well known, the game board 3 is provided with various types of winning devices, and an image display is provided. Reference numeral 4 denotes a back portion of the image display display, and reference numeral 5 denotes a back surface of the game board. This is a winning ball collection case. Reference numeral 6 denotes a game control circuit board provided on the back of the game board, 7 denotes a board box containing the game control circuit board, and 8 denotes a sound and lamp control board mounted on the winning ball set case 5. is there. 1
0 is a mechanism plate (set plate) provided on the back of the front frame 2
The mechanism plate is provided with a ball tank 11, a ball alignment gutter 12, a ball payout device 13, a prize ball discharge gutter 14, a winning ball discharge device 15, and the like. The game control circuit board 6, the sound, and the ramp control board 8 on the back side of the game board 3 are located in a substantially square window hole 16 formed in the mechanism plate 10.

As shown in FIG. 3, a pair of bearings 17 are provided on one side of the window 16 of the mechanism plate 10 and a cover 18 having a shape matching the window 16.
Are formed on one side of the cover body 18, and support pins 19, 19 which can be inserted into the bearings 17, 17 are formed.
By pivotally connecting the opening 8 to the window 16 so as to be openable and closable, the cover body 18 can simultaneously cover the back side of the game board 3 and the game control circuit board 6 and the like. 20 and 20 are support pins 19 and 1 when the cover body 18 is aligned with the window hole 16.
9 is an eave-shaped stopper piece protruding from the upper part of each of the bearings 17 so as to prevent the member 9 from floating upward and to prevent it from coming off.

Further, as shown in FIG.
A through hole 22 is formed in an ear piece 21 protruding from the other side, a push-expandable rivet 23 (referred to as a nilac) is inserted into the through hole 22, and the rivet 23 is further inserted into the prize ball discharge gutter 14. The cover 18 can be fixed in a closed state by pushing the cover 18 into a stop hole 24 formed in a part of the cover to expand the shaft diameter. The expandable rivet 23 is provided with a button 25 that can be pushed and pulled, and when the button 25 is pulled, the shaft diameter is contracted and the rivet 23 can be pulled out from the stop hole 24, so that it can be freely attached and detached.

Reference numeral 26 denotes sealing means which cannot be restored once the cover 18 has been opened. In the sealing means shown in this embodiment, four fixing portions 27a to 27d each having a through hole formed on the lower side of the cover body 18 are formed into a small-diameter portion 28a.
5 to 28d, and as shown in FIG. 5, a stopper hole 29 corresponding to each fixing portion is formed in a part of the mechanism plate 10.
a to 29d are established. Therefore, a push-expandable rivet 32 having a slot 30 formed therein and a large diameter portion 31 for engagement formed at the tip is inserted through any of the four fixing portions 27a to 27d, and the head 33 of the rivet 32 is inserted. The cover 18 can be prevented from being opened by burying it in the through hole of the fixing portion so that it cannot be removed. When opening, the small diameter portion must be cut with a tool such as a nipper. For this reason, once the cover 18 is opened, it cannot be restored, and the user can easily recognize that the cover 18 has been opened. In this embodiment, the four fixing portions 27a to 27
Since d is provided, it is possible to seal four times by using one by one. If the date and time of sealing and the seal of the person responsible for sealing can be indicated on each of the fixing portions, the opening / closing management can be further facilitated.

In the pachinko machine configured as described above, since the back side of the game board 3 is covered by the cover body 18 together with the game control circuit board 6, a sensor for detecting a winning ball provided on the back side of the game board is provided. It becomes difficult to modify the operating solenoid of the variable prize device and the signal lines and the like attached to the game control circuit board 6 without opening the cover 18, and if the cover 18 is opened, Since the parts 27a to 27d are unnecessarily detached, the discovery becomes easy.

Another embodiment of the present invention shown in FIGS. 6 and 7 uses a padlock 40 as a sealing means. That is, an elongated hole-shaped engaging hole 42 is formed in the ear piece 41 formed in the cover body 18, and an engaging ring 43 is formed integrally with a part of the mechanism plate 10. The engagement ring 43 is loosely fitted in the engagement hole 42 and the padlock 40 is set in the engagement ring 43 so that the cover 18 cannot be opened without removing the padlock 40. It is. In this case also,
If the cover body 18 is to be opened without removing it, the engagement ring 43 is broken or the bearings 17, 17,
Since there is no other way than to destroy the support pins 19, 19, etc., it is easy to find that the support pins 19 are opened. Note that the padlock 40 may be detached only with a different key for each pachinko machine.

Although not shown, instead of the padlock 40, a cover (called a dream key) of an opening / closing management type that records the date and time of opening and closing each time the pad is opened and closed is used. It is also possible to manage the opening and closing of the body 18.

In these embodiments, the cover 18 is supported by the mechanism plate 10, but the cover 18 may be directly supported on the back surface of the front frame 2 in addition to being supported by the mechanism plate, You may make it attach to a board attachment frame etc. Further, as the sealing means, various configurations other than those shown in this embodiment can be assumed. In addition, cover body 1
It is also possible to attach a game control circuit or the like to the inner surface of 8. As the means for fixing the cover body 18 to the back of the pachinko machine, the sealing means can be used in combination with a known fastening means such as a clamp, a hand knob, a screw, a nip latch or the like, if necessary. Also, as shown in FIG. 8, by providing the sealing means 26 on each side of the cover body 18, the cover body 18 can be provided in a sealed manner on the back side of the game board without using these fastening means. Is also possible.

[0013]

As described above, the structure for preventing unauthorized alteration of a pachinko machine according to the present invention is provided with a cover body capable of simultaneously covering the back side of the game board and the game control circuit board, and once opened to the cover body. Since the unrecoverable sealing means is provided, there is a beneficial effect that fraud can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a perspective view of a back surface showing an embodiment of a pachinko machine according to the present invention.

FIG. 2 is a rear view of the pachinko machine of FIG. 1 when a cover is closed.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged cross-sectional view taken along line BB of FIG. 2;

FIG. 5 is an enlarged cross-sectional view taken along line CC of FIG. 2;

FIG. 6 is a rear perspective view showing another embodiment of the pachinko machine according to the present invention.

FIG. 7 is a rear view of the pachinko machine of FIG. 6 when the cover is closed.

FIG. 8 is a rear perspective view showing another embodiment of the pachinko machine according to the present invention.

[Explanation of symbols]

 2 Front Frame 3 Game Board 5 Winning Ball Collecting Case 6 Game Control Circuit Board 7 Base Box 8 Voice and Lamp Control Board 10 Mechanism Plate 16 Window Hole 17 Bearing 18 Cover Body 19 Support Pin 20 Locking Piece 26 Sealing Means 27a to 27d Fixing Part 28a to 28d Small diameter part 29a to 29d Stop hole 32 Push-in expansion rivet 40 Padlock 42 Engagement hole 43 Engagement ring

Claims (3)

[Claims] 1. A pachinko machine comprising: a cover body capable of simultaneously covering the back side of a game board and a game control circuit board; and a sealing means provided on the cover body so that it cannot be restored once opened. Structure to prevent unauthorized alteration of the machine. 2. The sealing means according to claim 1, wherein the sealing means is fixed to the back of the pachinko machine by a rivet which cannot be removed once the cuttable fixing part integrally connected to the cover body is inserted. Structure to prevent unauthorized modification of pachinko machines. 3. The padlock according to claim 1, wherein the sealing means passes an engaging ring projecting from the back of the pachinko machine through an engaging hole formed in the cover body and sets a padlock on the engaging ring. Prevention of unauthorized modification of pachinko machines.