JP2950341B2 - Storage case for control circuit board in gaming machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case for storing a control circuit board in a game machine formed of a conductive material for housing a control circuit board for controlling a game operation.

[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. In particular, game machines such as large prize devices, various display lamps, and sound generation devices arranged on a game board are provided. Things with complex behavior are preferred. In such a pachinko machine having a complicated game operation, the game operation is controlled by an electronic control circuit such as a microcomputer, and therefore, a storage case containing a control circuit board is attached to the back of the pachinko machine. Have been. This storage case is formed by pressing a steel plate material, which is generally a conductive material, in order to prevent external noise.

[0003]

However, in the above-described storage case, the ROM provided on the control circuit board is provided.
To prevent unauthorized actions such as illegally replacing or connecting an external jumper wire to the control circuit board and inputting an incorrect signal.
In addition, a seal paper made of a material that cannot be reused was attached. However, recently, there has been a case where a fraudulent act is performed by forging the sealing paper itself, and in such a case, there is a problem that it is not possible to know from the appearance of the storage case whether or not the fraud has been performed. . SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a control circuit board storage case in a gaming machine that can easily detect improper control circuit boards housed therein. To provide.

[0004]

According to the first aspect of the present invention, there is provided a storage case made of a conductive material for storing a control circuit board for controlling a game operation. A size that allows substantially the entire area of the control circuit board to be seen on the front plate portion and the bottom plate portion of the storage case facing the component surface on which the electronic components of the control circuit board are mounted and the solder surface on the opposite side. The opening is closed with a transparent plate, and a conductive plate member is removably arranged at least outside the opening formed in the bottom plate portion .

[0005]

According to the first aspect of the present invention, the control circuit board is provided with a front plate portion and a bottom plate portion of the storage case facing the component surface on which the electronic components of the control circuit board are mounted and the solder surface opposite thereto. An opening of a size that can be seen through almost the entire area is opened and the opening is closed with a transparent plate, so that the component surface and the solder surface of the control circuit board can be seen through the transparent plate, and therefore, Thus, it can be easily found whether or not the electronic component mounted on the component surface is different from the prescribed one, and whether or not the jumper wire is connected to the solder surface can be easily found. In addition, since the top plate and the bottom plate of the storage case are closed by the transparent plate, the shielding effect against noise from the outside is reduced accordingly, but the conductive plate member is provided at least outside the opening of the bottom plate in contact with the pachinko machine side. Since it is detachably arranged, noise countermeasures due to static electricity or the like generated on the pachinko machine side can be taken.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. First, a configuration of a game board 1 of a gaming machine to which the storage case 20 according to the embodiment is applied will be described with reference to FIG. FIG. 5 is a rear view of the gaming board 1. In the figure, on the back of the game board 1 formed in a substantially square shape,
A winning ball collecting cover 2 covering a main portion of the game board 1 is detachably attached by a collecting cover fixing member 4. A center winning device (not shown) provided at the center of the game board 1 substantially at the center of the winning ball collecting cover 2.
A prize winning device cover 3 covering the rear of the prize device is attached, and a storage case 20 constituting a main part of the present embodiment is arranged on a side of the prize winning device cover 3. The winning device cover 3
In general, the center winning device is provided so as to protrude greatly behind the game board 1, so that it is formed so as to largely bulge rearward so as to cover the protruding portion. At the center of the upper part of the game board 1, a relay terminal plate 5 for temporarily connecting wiring of electric components such as switches, display lamps, and solenoids provided on the game board 1 is fixed. And
Wiring is connected from the relay terminal plate 5 to a control circuit board 22 described later housed in the housing case 20 so that the electrical components and the control circuit board 22 are electrically connected to control them. Has become.

[0007] By the way, the winning ball set cover 2 has
As shown in FIG. 4, a substantially square window opening 6 is opened, and a reinforcing rib 7 is provided upright on the periphery of the back surface of the window opening 6. The window opening 6 is opened to allow the center winning device to penetrate backward, and is mostly covered by the winning device cover 3. For this reason, a cover mounting boss 8 for fixing the winning device cover 3 with a screw (not shown) is implanted in the outer even corner portion of the window opening 6. Further, a reinforcing rib is provided upright on one side of the window opening 6 on the back surface of the winning ball collecting cover 2, and a board 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 freely opened and closed. That is, the storage case 20 includes the fixing member 1 fixed to one side piece thereof.
The support shaft 12 formed above and below the first support member 10 is rotatably supported by being inserted into a bearing portion of the support member 10. Then, by fixing a fixing piece 31 described below formed above and below the storage case 20 and a locking member 14 formed above and below the support member 10, the storage case 2 is locked.
0 is supported by the winning ball collection cover 2.
Also, when replacing the control circuit board 22 with the replacement of the game board, after releasing the locked state by the locking member 41,
By pivoting the storage case 20 in the direction of the winning device cover 3 and lifting it upward, the support shaft 12 can be removed from the bearing portion and replaced easily. The winning device cover 3
Of the storage case 20 is cut out so that the storage case 20 can be turned to a substantially right angle direction.
It has become.

The structure of the storage case 20 mounted on the back of the game board 1 as described above will be described below with reference to FIGS. FIG. 1 is a cross-sectional view of the storage case 20 cut in a vertical direction, FIG. 2 is a cross-sectional view of the storage case 20 cut in a horizontal direction, and FIG.
0 is an exploded perspective view. In the figure, the storage case 20
Comprises a fixed case 21 for fixing the control circuit board 22 and a cover case 23 for covering the fixed case 21. The fixed case 21 and the cover case 23 are both formed by pressing a steel plate material that is a conductive material. Therefore, each configuration will be described in detail below.

First, as shown in FIG. 3, the fixed case 21 has side plate portions 26 erected on three sides of the flat bottom plate portion 25, which is formed in a substantially rectangular shape, from the periphery of the bottom plate portion 25 except for the lower portion thereof.
5, a rectangular opening 24 is opened. This opening 2
Reference numeral 4 is formed to a size such that substantially the entire area of a solder surface 38 described later of the control circuit board 22 can be seen through, but smaller than the size of an opening 40 formed in the cover case 23 described later. This is because, as will be described in detail later, it is sufficient to determine whether or not a jumper wire is connected to the solder surface 38, and in this sense, a very large opening is not required.

An engaging piece 27 extends from an upper edge of the side plate 26 at an appropriate position. The engaging piece portion 27 is a portion that overlaps with the side plate portion 42 of the cover case 23. The fixed portion 21 and the cover case 23 are integrally formed by fastening the overlapping portion together with a screw. Has become. The engaging piece 27 is formed so as to be inside by the thickness of the cover case 23, as shown in FIGS. 1 and 2, so that the fixed case 21 is overlapped with the cover case 23. Side plate 26 and cover case 2
The third side plate portion 42 is on the same plane, and a sealing paper (not shown) is attached to the connection portion. The left and right side plate portions 26 are formed with heat release holes 28 for releasing heat generated from electronic components 37 described later to the outside. The heat release hole 28 is formed at a position (part corresponding to a surface space 51 described later) above a component surface 36 described later when the control circuit board 22 is attached to the fixed case 21. This is because most of the heat generated from the control circuit board 22 comes from the electronic components 37 provided on the component surface 36, and there is almost no heat generation from the solder surface 38 side.

A plurality of cutout openings 29 are formed in a bent portion between the bottom plate portion 25 and the left and right side plate portions 26, that is, in a peripheral edge serving as a base of the storage case 20. As shown in FIG. 2, the notch opening 29 allows a rear space 50 formed by the solder surface 38 of the control circuit board 22 and the bottom plate 25 to be seen through, and is connected to the solder surface 38 and hangs down. The purpose is to find jumpers. Accordingly, the cutout position, size, number, and the like of the cutout openings 29 may be provided in any manner as long as the whole area of the back space 50 can be seen through. However, it is desirable to design the storage case 20 taking into account the strength of the storage case 20.

The bottom plate 25 of the fixed case 21 has
A board fixing pin 30 for fixing the control circuit board 22 with a screw 39 is protruded from the even-angled portion. The board fixing pins 30 are caulked so as to penetrate the bottom plate section 25, and the solder surface 38 is fixed in a state where the control circuit board 22 is fixed.
A back space 50 is formed between the bottom surface 25 and the
6 and the surface space 41 between the front plate portion 41 of the cover case 23.
1 is formed. Further, as described above, the fixing pieces 31 for engaging with the engaging members 14 for fixing the storage case 20 extend above and below the bottom plate portion 25.

Further, a transparent plate 32 made of synthetic resin is provided inside the opening 24 formed in the bottom plate 25 so as to close the opening 24. On the side of the transparent plate 32 facing the control circuit board 22, a connecting member 34 fixed to the solder surface 38 of the control circuit board 22 (see FIGS. 1 and 2).
Are formed with a plurality of connection recesses 33 into which the tips of the connection recesses 33 are inserted. This connecting member 34 is also desirably formed of a transparent material. When the control circuit board 22 is fixed to the board fixing pins 30 with the screws 39, the transparent plate 32 automatically closes the opening 24. Then, the solder surface 3 of the control circuit board 22 is
8 can be easily seen when the jumper wire is connected to the solder surface 38. The reason why the transparent plate 32 is closed from the inside of the opening 24 is as follows. That is, when the transparent plate 32 is closed from outside the opening 24, the transparent plate 3
After destroying 2 and performing a fraudulent act of connecting a jumper wire to the solder surface 38, a fraudulent act of attaching a transparent plate formed in the same manner as the transparent plate 32 so as to close the opening 24 can be performed. By closing the transparent plate 32 from the inside, even if the transparent plate 32 is destroyed and a wrongdoing is performed in a game hall, the transparent plate 32 cannot be closed again from the inside, so that the wrongdoing can be easily found. Because you can.

In the illustrated embodiment, the back space 50 can be viewed through either the cutout opening 29 or the transparent plate 32, but only one of them is sufficient. That is, when the cutout opening 29 is formed, the opening 24 does not need to be formed, and therefore the transparent plate 32 is not required. When the opening 24 is formed and closed by the transparent plate 32, the cutout opening 29 is not required. Of course, both may be provided as in the embodiment.

On the other hand, outside the opening 24 of the bottom plate 25,
A conductive plate member 35 is detachably attached by screws. In this case, as the conductive plate member 35, the opening 4 of the cover case 23 formed to be larger than the opening 24.
A steel plate punched to form 0 can be used as it is. For this reason, 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 24 is covered with the conductive plate member 35 in this manner is as follows. That is, the bottom plate portion 25 of the storage case 20 is located at a position facing the winning ball collecting cover 2 as described above. For this reason, the bottom plate portion 25 is affected by an electricity-stagnant material such as a winning ball flowing down inside the winning ball collecting cover 2. There is a possibility that the control circuit of the control circuit board 22 may malfunction due to noise generated when the static electricity is accumulated in the winning ball collecting cover 2 and the accumulated static electricity is discharged. Then, the bottom plate 2
In a state where the opening 24 of the fifth case is covered with the transparent plate 32 made of a synthetic resin, there is a high possibility of being directly affected by noise, and the shielding effect of the storage case 20 is extremely reduced. To prevent this, the conductive plate member 3
By closing the opening 24 with 5, the shielding effect of the storage case 20 is improved. In addition, instead of using the steel plate punched out to form the above-described opening 40 as the conductive plate member 35, for example, a conductive sheet attached or attached to the bottom plate portion 25 or the transparent plate 32 may be used, A material obtained by applying a conductive paint to a non-conductive material may be used.

However, if the outside of the opening 24 is covered with the conductive plate member 35, the solder surface 38 of the control circuit board 22 cannot be seen through the transparent plate 32. The screws fixing the conductive plate member 35 may be loosened to remove the conductive plate member 35. Note that the conductive plate member 35 may be detachably disposed outside the opening 24, and a locking member for locking the conductive plate member 35 instead of a screw is formed on the back side surface of the bottom plate portion 25. Is also good. Alternatively, the conductive plate member 35 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 2 is opened.
4 may be configured to be closed by the conductive member 35.

In the cover case 23 that covers the fixed case 21 described above, as shown in FIG. 3, the side plate portion 42 extends from the periphery of the flat front plate portion 41 formed in a substantially rectangular shape.
Are set up toward the rear, and a rectangular opening 40 is opened in the front plate portion 41. The opening 40 is formed in such a size that substantially the entire area of a component surface 36 of the control circuit board 22 described later can be seen through. This is to determine whether the electronic component 37 mounted on the component surface 36 is different from the specified one, and is formed larger than the opening 24. A positioning piece 43 is extended at an appropriate position of the side plate portion 42 and engages with a positioning portion formed on the fixed case 21 to fix the fixed case 21 and the cover case 2.
3 and the exact position has been determined. The side plate portion 42 on one side (right side in FIG. 3) is shortly erected, and when combined with the fixed case 21, a rectangular wiring lead-out opening 44 (see FIG. 1) is formed. It has become. From the wiring lead-out opening 44, the control circuit board 2
Wiring for connecting the relay terminal 2 to the relay terminal plate 5 is drawn out.

A connecting hole 45 is formed in the front plate 41 along the periphery of the opening 40. The transparent plate 47 is firmly fixed to the cover case 23 by inserting and welding a connecting projection 49 of a transparent plate 47 described later into the connecting hole 45. Further, a heat release hole 46 is formed in the left and right side plate portions 42.

Further, a transparent plate 47 made of synthetic resin is provided inside the opening 40 formed in the front plate portion 41 so as to close the opening 40. The transparent plate 47 has a heat release hole 48 formed on the upper and lower portions thereof, and has a connecting projection 49 protruding from a peripheral edge thereof. The connection protrusion 49 is for preventing the transparent plate 47 from falling off by welding a portion protruding from the connection hole 45 after being inserted into the connection hole 45. The reason for providing the transparent plate 47 from the inside of the opening 40 is the same as the reason for providing the transparent plate 32 from the inside of the opening 24.

In the foregoing, the configuration of the storage case 20 according to the embodiment has been described. In the storage case 20, the component surface 36 of the control circuit board 22 on which the electronic components 37 are mounted and the solder surface 38 on the opposite side. The control circuit board 2 is attached to the front plate portion 41 and the bottom plate portion 25 of the storage case 20 facing
2, the openings 40 and 24 are large enough to see through substantially the entire area, and the openings 40 and 24 are closed by the transparent plates 47 and 32. Of the electronic component 37 mounted on the component surface 36 can be easily found whether or not the electronic component 37 is different from the specified one. Whether or not the jumper wire is connected can be easily found. Further, since the front plate portion 41 and the bottom plate portion 25 of the storage case 20 are closed by the transparent plates 47 and 32, the shielding effect against noise from outside is reduced accordingly, but at least the opening of the bottom plate portion 25 in contact with the pachinko machine side. Since the conductive plate member 35 is detachably disposed outside the motor 24, noise countermeasures such as static electricity generated on the pachinko machine side can be taken. Further, instead of forming the opening 24 in the bottom plate portion 25, a back space 50 formed by the bottom plate portion 25 of the storage case 20 and the solder surface 38 of the control circuit board 22 can be seen through the base periphery of the storage case 20. Even when the notch opening 29 is formed, the notch opening 2
Since the space below the solder surface 38 of the control circuit board 22 can be seen through the connector 9, it can be easily found whether or not a jumper wire is connected to the solder surface 38. In this case, the bottom plate 25 of the storage case 20
There is no need to open the opening 24, and there is a bottom plate portion 25 made of a conductive material as it is. Therefore, it is possible to maintain the shielding effect without having to dispose the conductive plate member 35 on the bottom plate portion 25 detachably. Can be.

[0021]

As is apparent from the above description, in the present invention, the component surface of the control circuit board can be seen through the transparent plate, and the solder surface of the control circuit board can be seen through the transparent plate. Because it is possible to see through, it is easy to find out whether or not the electronic component mounted on the component surface is different from the specified one, and it is also possible to easily find whether the jumper wire is connected to the solder surface. . In addition, when the bottom plate of the storage case is closed with the transparent plate, the shielding effect against external noise is reduced accordingly, but the conductive plate member is removably arranged at least outside the opening of the bottom plate in contact with the pachinko machine side. Therefore, noise countermeasures due to static electricity or the like generated on the pachinko machine side can be taken.

[Brief description of the drawings]

FIG. 1 is a sectional view of a storage case according to an embodiment, which is cut in a vertical direction.

FIG. 2 is a cross-sectional view of the storage case cut in a horizontal direction.

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

FIG. 4 is an exploded perspective view showing an attached state of the storage case.

FIG. 5 is a rear view showing a state where the storage case is attached to the back of the game board of the gaming machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Storage case 22 Control circuit board 24 Opening 25 Bottom plate part 29 Notch opening 32 Transparent plate 35 Conductive plate member 36 Component surface 37 Electronic component 38 Solder surface 40 Opening 41 Front plate part 47 Transparent plate 50 Back space

Claims (1)

(57) [Claims] 1. A storage case formed of a conductive material for housing a control circuit board for controlling a game operation, wherein the control circuit board has a component surface on which electronic components are mounted and a solder surface opposite to the component surface on which the electronic component is mounted. Opening an opening large enough to see through almost the entire area of the control circuit board in the front and bottom plate portions of the storage case facing each other, closing the opening with a transparent plate, and opening at least the bottom plate portion. A storage case for a control circuit board in a gaming machine, wherein a conductive plate member is removably arranged outside the opening.