JPH0140544Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field of the Invention> This invention relates to an electronic game machine, such as a medal-dispensing game machine, in which an electronic control unit is incorporated inside a box.

<Background of the invention> In recent years, electronic game machines of this type that are electronically controlled using microcomputers and the like have been put into practical use, and many machines with various game contents have been installed in game halls and the like. However, there has been an increase in the number of players who use radio equipment, piezoelectric elements, etc. to generate jamming waves and send them into the game machine, causing the electronic control unit to operate abnormally. . In order to deal with this fraudulent behavior, manufacturers have taken measures such as incorporating malfunction prevention devices into game machines, but as this type of fraudulent behavior becomes more diverse and sophisticated year by year, new It is difficult to develop a proper malfunction prevention device,
There were also other problems, such as complicating the internal circuitry and increasing machine costs.

Therefore, the inventor recently proposed a method of shielding the area around the electronic control section by attaching metal foil such as aluminum foil to the inner surface of the box.
58-80290). According to this method, the shield layer made of metal foil can prevent external signals from entering the box, reliably preventing abnormal operation of the electronic control section, and furthermore, this method can be implemented easily and inexpensively. There is also the advantage of being able to do so.

When carrying out the above method, a metal foil is attached to the surface of the box with an adhesive, and the butted ends of the metal foil are overlapped with each other to prevent the occurrence of gaps in the shield layer. However, since there is an adhesive layer between the overlapping parts of the metal foils, gaps between the shield layers are formed in the adhesive layer, and there is a risk that external signals may enter the box through these gaps. It turned out that there was a problem.

<Purpose of the invention> The object of this invention is to provide a new electronic game machine that solves the above problems by adding a simple structure to the shield layer made of the metal foil.

<Structure and Effects of the Invention> In order to achieve the above object, in this invention, in an electronic game machine in which a shield layer surrounding an electronic control unit is formed using metal foil, perforations are formed in the overlapping portion of the metal foil. A pressure line was applied so that the overlapping metal foils were brought into close contact with each other.

According to this invention, even if a gap between the shield layers is formed by the adhesive layer at the overlapped part of the metal foil,
This gap is closed by the pressure wire, which greatly reduces the risk of external signals entering the box from the adhesive layer, and can reliably prevent abnormal operation of the electronic control section. Further, since the pressing line is formed in the form of a perforation, it can be easily formed using a simple tool, and this method has remarkable practical effects, such as being able to be carried out simply and at low cost.

<Description of Embodiments> FIGS. 3 and 4 show an electronic game machine in which this invention is implemented.

The illustrated electronic game machine has a non-metallic box 1.
On the front of the screen, there is a display section 2 that displays the game contents on a flashing ticket.
In addition, a medal slot 3, a registration button 4, etc. are provided, and when the predicted value by the registration button 4 matches the game result, a predetermined number of medals and prizes are released from the discharge port 5 located at the lower position. .

The display section 2 is composed of a panel 6 showing a pattern and a group of lamps (not shown) arranged behind the panel 6, and the blinking operation is controlled by an electronic control section 7 housed inside the box 1. . This electronic control unit 7 is configured with a microcomputer circuit, and includes a memory in which game programs and various data are stored, and a central processing unit (CPU) that executes various calculations and processes while reading and writing data to and from the memory based on the programs. Processing Unit), etc.

A shield layer is formed on the entire circumferential surface of the box 1 to prevent external signals from entering, and this shield layer protects the electronic control section 7 and a large number of lead wires 8 connected to the electronic control section 7. ,9,1
0 is completely surrounded. The shield layer in the illustrated example is formed by attaching a metal foil 11 such as aluminum foil to the inner surface of the box 1 and, if necessary, to the outer surface using an adhesive. As shown, the butted ends of the metal foils 11A and 11B are overlapped with each other, and a perforation-like pressing line 12 is applied to the overlapping portion to bring the two overlapped metal foils 11A and 11B into close contact with each other. There is.

The pressing line 12 is formed by using a simple tool 15 (such as a looper of a sewing tool) that rotates a circular disk having a serrated edge. Although there is an adhesive layer 13 between them, the metal foils 11A and 1 at the pressed locations
The adhesive layer 13 is pushed away from between the metal foils 11A and 11B, and the metal foils 11A and 11B are brought into close contact 14 with each other.

Note that for the display section 2, a shield layer is formed by applying conductive paint, vacuum plating, or the like.

Therefore, in the overlapping portion of the metal foils 11A and 11B, the adhesive layer 1
3 prevents the occurrence of interference between the shield layers. Even if a customer generates interference near the game machine and attempts to infiltrate external signals into Box 1, the radio waves will be blocked by the shield layer described above. The signal is completely blocked by the layer, and signals are prevented from being transmitted to the lead wire or the like and input to the electronic control section 7.

Although the above embodiment shows a type of electronic game machine that flashes the game content on the display unit 2, this invention is not limited to this and can be applied to other types of electronic game machines such as slot machines. Of course.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the area where the metal foil is pasted, Figure 2
The figure is an enlarged sectional view of an overlapping portion of metal foil, FIG. 3 is a perspective view showing an example of an electronic game machine, and FIG. 4 is a cross-sectional view thereof. 1...Box, 7...Electronic control section, 11,1
1A, 11B...metal foil, 12...pressing wire.

Claims (1)

[Claims for Utility Model Registration] A metal foil 11 is pasted with adhesive on the top surface of a box 1 in which an electronic control unit 7 is incorporated,
A shield layer surrounding the electronic control unit 7 is formed, and a perforation-like pressing line 12 is provided in the overlapping portion of the metal foils 11A, 11B to bring the overlapping metal foils 11A, 11B into close contact. electronic game machine. The electronic game machine according to claim 1, wherein the metal foil 11 is an aluminum foil.