JPH06178851A - Control circuit substrate in game machine - Google Patents

Abstract

PURPOSE:To provide a control circuit substrate in a game machine which facilitates the design of the rear surface of the game machine by reducing cost and interruption of noises as low as possible while reducing an area of the rear surface of the game machine occupied by the control circuit substrate. CONSTITUTION:While a control circuit substrate 50 packages on the outside and inside a plurality of electronic parts constituting the control circuit, it comprises a microprocessor 53 of at least the center of control as the electronic parts packaged on a packaging surface 51 at the side as perceived from the outside when the electronic parts are received in a receiving case 20 to be mounted to a game machine and a ROM 54 for receiving game programs. Thus, since the control circuit substrate 50 can be miniaturized, the cost can be reduced by the miniaturization while noises are reduced and an area of the rear surface of the game machine occupied by the control circuit substrate 50 can be lessened to facilitate the design of the rear surface of the game machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control circuit board for controlling game operations.

[0002]

2. Description of the Related Art As is well known, gaming machines such as pachinko machines have become more and more popular in recent years, and in particular, games such as large prize winning devices arranged on a game board surface, various display lamps, and sound generating devices are played. Something complex in behavior is preferred. In such a pachinko machine with complicated game operation, the game operation is controlled by an electronic control circuit such as a microcomputer, so a storage case containing a control circuit board is attached to the back of the pachinko machine. Has been.

[0003]

[Problems to be Solved by the Invention] However, the number of input signals input to the control circuit board and the number of output signals output from the control circuit board are increased in response to the complexity of the game, and accordingly, the control is further increased. Since the size of the circuit board is large, there is a drawback that the cost of the control circuit board is high and noise is easily picked up. Further, there is a problem in that the occupied area of the storage case including the control circuit board on the rear surface of the game machine is increased, and the design in the layout relationship with other parts is complicated. The present invention has been made in view of the above problems, and an object of the present invention is to keep the cost low, to reduce the interference due to noise as much as possible, and to reduce the occupied area on the back of the gaming machine to reduce the back surface of the gaming machine. It is to provide a control circuit board in a game machine that can be easily designed.

[0004]

In order to achieve the above object, in the present invention, in a control circuit board for controlling a game operation, a plurality of electronic parts constituting a control circuit are provided on the front and back sides of the control circuit board. At least a microprocessor as a control center and a ROM for storing a game program as an electronic component mounted on a mounting surface which is mounted and mounted on a gaming machine when it is housed in a storage case and mounted on a gaming machine. It is characterized by including.

[0005]

Since a plurality of electronic components constituting the control circuit are mounted on the front and back sides of the control circuit board, the control circuit is different from the conventional control circuit board in which the electronic components are mounted only on one side of the control circuit board. Since the board can be made smaller, the cost can be kept low, noise can be less picked up, and the area occupied by the control circuit board on the rear surface of the game machine can be made smaller. The back design can be done easily. Further, the electronic component mounted on the mounting surface on the side visible from the outside when it is stored in the storage case and attached to the game machine includes at least a microprocessor as a control center and a ROM storing a game program. From this, it is possible to confirm whether or not it has been replaced with an unauthorized microprocessor or ROM different from the legitimate one while it is still attached to the gaming machine, and it is extremely easy to deal with such unauthorized activity. be able to.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. First, the configuration of the game board 1 of the game machine to which the storage case 20 according to the embodiment is applied will be described with reference to FIG. FIG. 4 is a rear view of the game board 1. In the figure, on the back surface of the game board 1 formed in a substantially square shape,
A prize ball collective cover 2 that covers the main area of the game board 1 is detachably attached by a collective cover fixing member 4. In addition, a center winning device (not shown) provided at the center of the game board 1 at approximately the center of the prize ball collecting cover 2.
The winning device cover 3 that covers the rear of the winning device cover 3 is attached, and the storage case 20 that houses the control circuit board 50 that constitutes the essential part of the present embodiment is arranged on the side of the winning device cover 3. Since the center winning device is provided so as to largely project to the rear of the game board 1, the winning device cover 3 is formed so as to largely bulge backward so as to cover the protruding part. In addition, a relay terminal plate 5 is fixed to the center of the upper portion of the game board 1 for temporarily connecting the wiring of switches, display lamps, solenoids and other electric parts provided on the game board 1. Then, wiring is connected from the relay terminal board 5 to the control circuit board 50 housed in the housing case 20, whereby the electric components and the control circuit board 50 are connected.
And are electrically connected to control them.

By the way, the prize ball collecting cover 2 includes
As shown in FIG. 3, a window opening 6 having a substantially square shape is opened, and a reinforcing rib 7 is provided upright on the peripheral edge of the back surface of the window opening 6. The window opening 6 is opened for penetrating the center winning device described above, and most of the window opening 6 is covered by the winning device cover 3. Therefore, a cover mounting boss 8 for fixing the winning device cover 3 with a screw (not shown) is planted in the outer even corner of the window opening 6. Further, a reinforcing rib is erected on one side of the window opening 6 on the back surface of the winning ball collecting cover 2, and a substrate case mounting boss 9 is formed on the reinforcing rib. The board case mounting boss 9 fixes a support member 10 that supports the storage case 20 so as to be openable and closable. That is, the storage case 20 has the fixing member 1 fixed to one side piece thereof.
By inserting the support shafts 12 formed above and below 1 into the bearing portion of the support member 10, the support shafts 12 are rotatably supported. Then, the storage case 2 is formed by locking the fixing pieces 30 formed below the storage case 20 and the locking members 14 formed above and below the support member 10, respectively.
0 is supported by the winning ball collecting cover 2.

Further, when the control circuit board 50 is replaced with the replacement of the game board 1, after releasing the locked state by the locking member 14, the storage case 20 is rotated toward the winning device cover 3. The support shaft 12 can be removed from the bearing portion and easily replaced by lifting the support shaft 12 upward. In addition, the side surface of the winning device cover 3 on the side of the storage case 20 is a cutout portion 13 that is cut out so that the storage case 20 can be rotated substantially at a right angle. Since the conventional storage case has a vertical length that is substantially the same as the winning device cover 3, the occupied area on the back surface of the game board 1 is extremely large, but the control circuit board 50 Since the area can be formed small for the reason described later, the storage case 20 in the drawing occupies an extremely large proportion of the occupied area on the back surface of the game board 1 as compared with the winning device cover 3, as shown in FIG. Since the size can be reduced, the degree of freedom in designing the back surface of the game board 1 increases accordingly.

Therefore, the structure of the storage case 20 attached to the back surface of the game board 1 will be described below with reference to FIG. FIG. 1 is an exploded perspective view of the storage case 20. In the figure, the storage case 20 includes a fixed case 21 for fixing the control circuit board 50 and a cover case 22 for covering the fixed case 21. The fixed case 21 and the cover case 22 are both formed by pressing a steel plate material that is a conductive material. Therefore, each configuration will be described in detail below.

First, in the fixed case 21, side plates 25 are erected on three sides except the lower side from the periphery of a flat plate-shaped bottom plate 24 formed in a substantially rectangular shape, and a rectangular opening 23 is formed in the bottom plate 24. ing. The opening 23 is formed to have a size such that almost the entire back side mounting surface 52 of the control circuit board 50, which will be described later, can be seen through, but is smaller than the size of the opening 36, which will be described later, formed in the cover case 22. It This means that, as will be described later in detail, the number of electronic components mounted on the back side mounting surface 52 is smaller than that on the front side mounting surface 51, and electronic parts that are not so important even if illegally replaced are mounted. Because it does not require a large opening.

An engaging piece portion 26 is provided on the upper edge of the side plate portion 25 at an appropriate position. The engagement piece portion 26 is a portion that overlaps with the side plate portion 38 of the cover case 22, and the fixed case 21 and the cover case 22 are integrally formed by fastening the overlapping portion together with a screw. Has become. It should be noted that the engagement piece portion 26 is provided in the cover case 22.
Since the cover case 22 is overlapped, the side plate portion 25 of the fixed case 21 and the side plate portion 38 of the cover case 22 are flush with each other in the overlapping state, Sealing paper (not shown) is attached. Further, the left and right side plate portions 25 are formed with heat escape holes 27 that allow heat generated from an electronic component to be mounted, which will be described later, to escape to the outside.

A plurality of cutouts 28 are formed in the bent portion between the bottom plate portion 24 and the left and right side plate portions 25, that is, in the peripheral edge which is the base portion of the storage case 20. This notch opening 28 sees through the back space formed by the back side mounting surface 52 of the control circuit board 50 and the bottom plate portion 24, and determines whether or not an unauthorized component is mounted on the back side mounting surface 52. It is intended to be found in a state where it is attached to the back surface of the game board 1. Therefore, the notch opening 28
The notch position, size, number, etc. may be provided in any manner as long as the entire back space can be seen through, but it is preferable to design by taking into account the strength of the storage case 20.

The bottom plate 24 of the fixed case 21 has a
A board fixing pin 29 for fixing the control circuit board 50 with a screw 35 is provided on the even corner portion. The board fixing pin 29 is crimped so as to penetrate the bottom plate portion 24, and the back side mounting surface 5 is fixed to the control circuit board 50.
A back space is formed between the bottom plate 24 and the bottom plate 24, and a front space is formed between the front mounting surface 51 and the front plate 37 of the cover case 22. Further, as described above, the fixing pieces 30 for locking the locking member 14 for fixing the storage case 20 are provided above and below the bottom plate portion 24.

Further, a transparent plate 31 made of synthetic resin is provided inside the opening 23 formed in the bottom plate portion 24 so as to close the opening 23. Then, on the side of the transparent plate 31 facing the control circuit board 50, a connecting member 33 fixed to the back side mounting surface 52 of the control circuit board 50 (in the figure, drawn in a state of being inserted in one connecting recess 32). However, a plurality of connection recesses 32 into which the tips of the back mounting surface 52 are inserted are formed. When the control circuit board 50 is fixed to the board fixing pin 29 with the screw 35, the transparent plate 31 automatically closes the opening 23. Since the back side mounting surface 52 of the control circuit board 50 can be seen through the transparent plate 31, it is possible to easily find an illegal component provided on the back side mounting surface 52. The reason why the transparent plate 31 is closed from the inside of the opening 23 is as follows. That is, when the transparent plate 31 is closed from the outside of the opening 23, the transparent plate 31 is destroyed and an illegal component is mounted on the back side mounting surface 52, and then the transparent plate 31 is formed in the same manner as the transparent plate 31. Although a fraudulent act of mounting the plate so as to close the opening 23 can be performed, by fixing the transparent plate 31 from the inside, the fixed case 21 is destroyed even if the transparent plate 31 is destroyed and the fraudulent act is performed in the game hall. This is because the transparent plate 31 cannot be closed from the inside again unless the sealing paper that is passed between the cover case 22 and the cover case 22 is damaged, and fraud can be easily detected.

In the illustrated embodiment, the back space can be seen through the notch opening 28 and the transparent plate 31, but it is sufficient if only one of them is provided.
That is, when the notch opening 28 is formed, the opening 2
3 need not be formed and therefore the transparent plate 31 is not necessary. Further, when the opening 23 is formed and closed by the transparent plate 31, the cutout opening 28 is not necessary. Of course, both may be provided as in the embodiment.

On the other hand, outside the opening 23 of the bottom plate 24,
The conductive plate member 34 is detachably attached with screws. In this case, as the conductive plate member 34, the opening 3 of the cover case 22 formed larger than the opening 23 is formed.
The steel plate punched to form 6 can be used as it is. Therefore, there is an advantage that it is not necessary to specially process and prepare the conductive plate member. The reason why the outside of the opening 23 is covered with the conductive plate member 34 in this way is as follows. That is, the bottom plate portion 24 of the storage case 20 is a position facing the prize winning ball collecting cover 2 as described above, and therefore, due to the influence of static electricity substances such as winning balls flowing down inside the prize winning ball collecting cover 2. Static electricity may be accumulated in the winning ball collecting cover 2, and noise generated when the accumulated static electricity is discharged may cause the control circuit of the control circuit board 50 to malfunction. Then, the bottom plate 2
If the opening 23 of No. 4 is still covered with the transparent plate 31 made of synthetic resin, there is a high possibility that it will be directly affected by noise, and the shielding effect of the storage case 20 will be extremely reduced. In order to prevent this, the conductive plate member 3
By closing the opening 23 at 4, the shielding effect of the storage case 20 is improved. Note that, as the conductive plate member 34, instead of using a steel plate punched to form the opening 40 described above, for example, a conductive sheet may be attached or attached to the bottom plate portion 24 or the transparent plate 31, or It may be a non-conductive material coated with a conductive paint.

However, when the outside of the opening 23 is covered with the conductive plate member 34, the back side mounting surface 52 of the control circuit board 50 cannot be seen through the transparent plate 31, but when the back side mounting surface 52 is seen through. In this case, the screw fixing the conductive plate member 34 may be loosened and the conductive plate member 34 may be removed. The conductive plate member 34 may be detachably arranged outside the opening 23, and a locking member that locks the conductive plate member 34 instead of the screw is formed on the back side surface of the bottom plate portion 24. Is also good. Alternatively, the conductive plate member 34 is fixed to the support member 10 that supports the storage case 20, and when the storage case 20 is closed and locked by the locking member 14, the opening 23 is closed by the conductive plate member 34. It may be configured to be performed.

Also in the cover case 22 covering the fixed case 21 described above, as shown in FIG. 1, from the peripheral edge of the flat plate-like front plate portion 37 formed in a substantially rectangular shape to the side plate portion 38.
Is erected rearward, and a rectangular opening 36 is formed in the front plate portion 37. The opening 36 is formed in such a size that almost the entire front surface mounting surface 51 of the control circuit board 50, which will be described later, can be seen through. This is the front side mounting surface 51
This is for determining whether or not the electronic component mounted on the board is different from the specified one, and is formed larger than the opening 23. In addition, a positioning piece portion 39 is extended at an appropriate position of the side plate portion 38 and engages with a positioning portion formed on the fixed case 21 to determine an accurate position between the fixed case 21 and the cover case 22. ing. The side plate portion 38 on one side (right side in FIG. 1) is shortly erected, and when combined with the fixed case 21, a rectangular wiring drawing opening 40 is formed. . A wiring for connecting the control circuit board 50 and the relay terminal board 5 is drawn out from the wiring drawing opening 40.

A connecting hole 41 is formed in the front plate portion 37 along the peripheral edge of the opening 36. The transparent plate 43 is firmly fixed to the cover case 22 by inserting and welding a connecting protrusion 45 of a transparent plate 43 described later into the connecting hole 41. Further, heat escape holes 42 are formed in the left and right side plate portions 38.

Further, a transparent plate 43 made of synthetic resin is provided inside the opening 36 formed in the front plate portion 37 so as to close the opening 36. The transparent plate 43 has heat escape holes 44 formed in the upper and lower portions thereof, and a connecting protrusion 45 is provided on the peripheral edge thereof. The connection protrusion 45 is for being inserted into the connection hole 41 and then welding the portion protruding from the connection hole 41 to prevent the transparent plate 43 from falling off. The reason for providing the transparent plate 43 from the inside of the opening 36 is the same as the reason for providing the transparent plate 31 from the inside of the opening 23.

Although the configuration of the storage case 20 according to the embodiment has been described above, in the storage case 20, the front side mounting surface 51 on which electronic components of the control circuit board 50 are mounted and the back side mounting surface on the opposite side thereof. The front plate portion 37 and the bottom plate portion 24 of the storage case 20 facing the housing 52 are provided with openings 36 and 23 having a size such that almost the entire area of the control circuit board 50 can be seen through, and the openings 36 and 23 are transparent plates. 43, 31
Since it is closed by, the front side mounting surface 51 and the back side mounting surface 52 of the control circuit board 50 can be seen through the transparent plates 43 and 31, and therefore, the front side mounting surface 51 and the back side mounting surface 52 are mounted. It is possible to easily find out whether or not the electronic component to be manufactured is different from the regular one. Also, the storage case 20
Since the front plate part 37 and the bottom plate part 24 are closed by the transparent plates 43 and 31, the shield effect against external noise is reduced by that much, but at least the outside of the opening 23 of the bottom plate part 24 in contact with the pachinko machine side is electrically conductive. Since the flexible plate member 34 is detachably arranged, it is possible to take measures against noise due to static electricity or the like generated on the pachinko machine side. In addition, the bottom plate 24
Instead of forming the opening 23 in the bottom of the storage case 20, the bottom plate 24 of the storage case 20 and the control circuit board 5 are provided at the periphery of the base of the storage case 20.
Even when the notch opening 28 that allows the back space formed by the back mounting surface 52 of 0 to be seen through is formed, the lower space of the back mounting surface 52 of the control circuit board 50 can be seen through the notch opening 28. Therefore, it is possible to easily find out whether or not an unauthorized component is mounted on the back side mounting surface 52. In this case, since it is not necessary to open the opening 23 in the bottom plate portion 24 of the storage case 20 and there is the bottom plate portion 24 which is made of a conductive material as it is, the conductive plate member 34 is purposely provided in the bottom plate portion 24. The shield effect can be maintained even if it is not detachably arranged.

The control circuit board 50 housed in the housing case 20 having the above-mentioned structure has a plurality of electronic parts constituting a control circuit for controlling a game operation on the front and back thereof. Specifically, the transparent plate 43 of the cover case 22.
As shown in FIG. 2A, the main electronic components mounted on the front mounting surface 51 that can be seen through are a CPU 53 as a control center and a ROM 5 in which a game program is stored.
4, and the input / output connector terminal 55 for connecting the wiring connected to the relay terminal board 5 and the center winning device,
As a main electronic component mounted on the back side mounting surface 52 that can be seen through the transparent plate 31 of the fixed case 21, as shown in FIG.
As shown in (B), an input / output LSI that controls input / output signals
56 and a number of resistors associated therewith. In this way, the ROM, which is an electronic component whose game contents can be easily changed
Since the 54 and the CPU 53 are mounted on the front mounting surface 51 which is visible from the outside when the 54 and the CPU 53 are housed in the housing case 20 and mounted on the back surface of the game board 1, they are replaced with an unauthorized microprocessor or ROM different from the normal one. You can check whether it is attached to the game machine,
Such fraudulent acts can be dealt with very easily. In addition, since a plurality of electronic components constituting the control circuit are mounted on the front and back of the control circuit board 50, the insulating plate is different from the conventional control circuit board in which the electronic components are mounted only on one surface of the control circuit board. Since it is possible to reduce the size of the substrate material having the conductive metal surface-treated on the front and back surfaces thereof, the cost can be suppressed correspondingly and noise can be less picked up.

In the above embodiment, the pachinko machine is shown as the game machine, but any kind of game machine can be used as long as the game operation is controlled by the control circuit formed on the control circuit board. May be

[0024]

As is apparent from the above description, in the present invention, since a plurality of electronic parts constituting the control circuit are mounted on the front and back sides of the control circuit board, one side of the control circuit board as in the prior art is mounted. Since the control circuit board can be made smaller than the control circuit board on which the electronic components are mounted, the cost can be kept low and noise can be less picked up. The area occupied by the back of the gaming machine can be reduced,
The back surface of the game machine can be easily designed. Further, the electronic component mounted on the mounting surface on the side visible from the outside when it is stored in the storage case and attached to the game machine includes at least a microprocessor as a control center and a ROM storing a game program. From
An unauthorized microprocessor or ROM that is different from the legitimate one
It is possible to confirm whether or not it has been exchanged in the state of being attached to the gaming machine, and it is possible to cope with such fraudulently very easily.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a storage case that stores a control circuit board according to an embodiment.

FIG. 2 is a schematic front view and a schematic rear view of a control circuit board.

FIG. 3 is an exploded perspective view showing a mounting state of a storage case.

FIG. 4 is a rear view showing a state in which the storage case is attached to the back surface of the game board of the game machine.

[Explanation of symbols]

 20 Storage Case 21 Fixed Case 22 Cover Case 23 Opening 24 Bottom Plate Part 31 Transparent Plate 34 Conductive Plate Member 36 Opening 37 Front Plate Part 43 Transparent Plate 50 Control Circuit Board 51 Front Side Mounting Surface 52 Backside Mounting Surface 53 CPU (Microprocessor) 54 ROM 55 I / O connector terminal 56 I / O LSI

Claims (1)

[Claims] 1. A control circuit board for controlling a game operation, wherein a plurality of electronic components constituting a control circuit are mounted on the front and back of the control circuit board, and when the electronic circuit board is housed in a housing case and attached to a gaming machine. An RO that stores at least a microprocessor as a control center and a game program as an electronic component mounted on the mounting surface visible from the outside
A control circuit board in a game machine, including: