JPH10201923A - Mounting structure for circuit board case of game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a circuit board case to be installed on the rear of a pachinko game machine, whereby it is possible to prevent such an undue illegal act as replacing the circuit board case with a modified one while the game parlor is open. SOLUTION: A pachinko game machine is structured so that a winning ball gathering cover 9 is installed on the rear of the game board 2 and a circuit board case 10 accommodating circuit board 12 for control of the playing condition is mounted on the rear of the cover 9, wherein a detection part 26 and a part to be detained 30 which engage one another and whose engaged condition can be disengaged only from the front surface of the cover 9, are provided on the rear surface of the cover 9 and the rear surface of case 10 confronting the cover rear surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a board case containing a circuit board for controlling a game state in a game machine such as a pachinko game machine.

[0002]

2. Description of the Related Art Conventionally, in a pachinko gaming machine which is a gaming machine, a prize ball collecting cover for gathering prize balls is provided on the back of the game board, and a game state is provided on the back of the prize ball collecting cover. The board case which accommodates the circuit board which controls is controlled. The board case is made of, for example,
No. 659, a base plate mounted on the back of the winning ball collecting cover, a circuit board mounted on the front of the base plate, and a box-shaped cover made of synthetic resin covering the circuit board. Consists of The cover body is provided with tool insertion cylinders at four corners on the front surface thereof, which can screw the cover body from the front surface to the base plate. By the way, other than during business hours in pachinko halls, illegal acts such as arbitrarily remodeling circuit boards to give the game gambling have been performed, and in order to prevent this, screws are inserted into each tool insertion cylinder part. After being inserted and screwed, a seal is attached to the upper opening of the tool insertion tube.

On the other hand, a hook-shaped hooking piece is provided at the upper end edge of the back surface of the base plate, and a push-expandable rivet stopper penetrating the back surface is attached to the center of the lower end of the front surface. The board case is attached by pushing the rivet stopper at the center of the lower end with the retaining piece on the upper edge hooked on the back of the collective cover, making it easy to attach and remove from the back of the winning ball collective cover It was a configuration that could be performed.

[0004]

However, even if a sealing seal is stuck to the upper opening of the tool insertion tube as described above, the sealing seal is cleverly used except when the pachinko hall is actually open. Unauthorized acts, such as removing the peeling screws and remodeling the control board without permission, continued without fail, and the purpose was not achieved. On the other hand, the present applicant made it impossible to remove the screw at all by inserting a sealing plug that closes the tool insertion tube into the tool insertion tube after tightening the screw. Filed for something. According to this,
Although the intended purpose is sufficiently achieved, recently, the board case is attached to the back of the winning ball set cover only with the hook and the rivet stopper, and the board case can be easily removed especially by pulling out the rivet stopper Therefore, the pachinko machine opens the front frame during the pachinko parlor business, and replaces the board case with the one with the remodeled ROM from the back of the winning ball set cover, and thereby performs wrongdoing. At present, it is difficult to take this measure. Therefore, the present invention has been made to solve the above problem, and the substrate case can be removed from the front surface of the winning ball collection cover and cannot be removed from the back surface, so that it can be easily opened especially during business in pachinko halls. It is an object of the present invention to provide a mounting structure of a board case in a gaming machine in which the board case cannot be replaced and fraudulent acts are prevented.

[0005]

In order to achieve the above object, a mounting structure for a board case in a gaming machine according to the present invention is provided with a prize ball collecting cover for collecting prize balls on the back of a game board. In a gaming machine in which a board case accommodating a circuit board for controlling a gaming state is mounted on the back surface of the winning ball collecting cover, the back surface of the winning ball collecting cover and the back surface of the opposing board case are attached to each other. An engaging portion or an engaged portion is provided which can be engaged and released from only the surface of the winning ball aggregate cover.
As described above, since the engagement of the board case can be released only from the surface of the winning ball collecting cover, the board case cannot be removed unless the winning ball collecting cover is removed from the game board, and the work is not performed. Since it is extremely complicated and time-consuming, it is not possible to easily replace the board case by opening the front frame of the pachinko game machine during business in the pachinko hall.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a mounting structure for a board case in a gaming machine according to the present invention will be described below with reference to the drawings. Note that the gaming machine to which the present invention can be applied includes a pachinko gaming machine, an arrangement ball gaming machine, and the like. The pachinko gaming machine will be described in detail as an example.

FIG. 1 is a rear view of a pachinko game machine equipped with a board case of the present invention, in which 1 is a pachinko game machine, 2 is a game board, and is made of synthetic resin so as to cover the entire back surface. The mechanism plate 3 is mounted to be openable and closable about one side thereof. The mechanism plate 3 is provided with a prize ball tank 4 for storing a prize ball at an upper portion thereof, a tank rail 5 is provided below the prize ball tank 4, and a prize ball payout device 6 is provided at a lower end thereof. .

[0008] Below the prize ball payout device 6, there is provided a prize ball discharge passage 7 for paying out prize balls to the front of the pachinko gaming machine 1. Further, a window opening 8 is opened in the center portion of the mechanism plate 3, and a winning ball set cover 9 made of synthetic resin directly attached to the back surface of the game board 2 faces the window opening 8, as shown in FIG. The substrate case 10 according to the present invention is mounted on the back of the winning ball collecting cover 9. The winning ball collecting cover 9 is attached by fitting engagement holes 9b provided at four corners of the plate-like portion 9a to engagement pieces 2a provided on the back surface of the game board 2 against its resilience. .

FIG. 3 is a perspective view showing a state in which the board case 10 is removed from the winning ball collecting cover 9, FIG. 4 is a perspective view of the board case 10, and FIG. Board case 10
Is the base plate 1 mounted on the back of the winning ball collecting cover 9
A circuit board 12 attached to the front of the base plate 11 for controlling a game state of the pachinko gaming machine 1;
2 and a cover body 13 that covers the front surface. The base plate 11 is formed of a rectangular metal plate, and mounting bosses 14 are respectively provided on the front surface thereof at four upper and lower corners, and a screw hole 15 is formed in a front end surface of each mounting boss 14. An upper edge of the base plate 11 is bent forward, and a receiving frame 16 for receiving the rear surface of the circuit board 12 is provided along the inside thereof.

The circuit board 12 has substantially the same shape as the base plate 11, and has electronic components 17 such as a CPU and a ROM mounted on the front surface thereof. Also, the mounting bosses 1 are provided at the upper and lower four corners.
Mounting hole 1 corresponding to the screw hole 15 provided on the front end face of No. 4
8 have been established.

The cover body 13 is made of a transparent ABS resin, and has substantially the same size as the base plate 11, and has a box-like shape whose rear surface is open and covers the front surface of the circuit board 12. More specifically, as shown in FIG.
The corners formed by b and 13b are formed in an R-shape, and both side walls 13b and 13b are provided to be inclined so as to become gradually wider toward the rear surface side. Then, at the upper and lower four corners of the front surface of the cover body 13, that is, at the upper and lower positions of the side walls 13b, 13b, the cylindrical shape is formed so as to be inscribed inside the respective side walls 13b, 13b over the space between the front side wall 13a and the circuit board 12. A tool insertion tube portion 19 is provided. Each of the tool insertion tube portions 19 has an opening 20 on the front side wall 13a side and communicates with the outside, and a screw insertion hole 21 corresponding to the screw hole 15 is formed on the circuit board 12 side. Since the side walls 13b, 13b are provided at an angle, a notch opening 20a continuous with the opening 22 is formed on the side wall 13b of the tool insertion tube portion 21.

Reference numeral 22 denotes a screw for assembling the cover body 13 integrally with the base plate 11, and is screwed into the screw hole 15 from the front surface of the cover body 13 through the tool insertion tube part 19. 2
3 is inserted into the tool insertion tube portion 19 and the tool insertion tube portion 19
Is a sealing plug made of ABS resin for closing the screw 22 so that the screw 22 cannot be unnecessarily removed from the outside. The sealing plug is formed in a short column shape having an outer diameter substantially equal to the inner diameter of the tool insertion tube portion 19. ing. The rear end face of the sealing plug 23 has a concave portion 24 fitted to the head of the screw 22 as shown in FIG.
In addition, a curved notched surface portion 23a is provided on the outer surface thereof so as to be flush with the outer surface of the side wall 13b of the cover body 13 when fitted into the tool insertion tube portion 19.

On the back surface of the base plate 11, as shown in FIG.
25 is fixed. Each of the locking members 25, 25 is integrally provided with locking pieces 26, 26 as engaging portions having claw portions 26a, 26a protruding horizontally forward at both left and right ends and having outwardly facing tips at the ends thereof. I have. These locking members 25, 25 are formed from a resilient metal material,
The base plate 11 is welded to the rear surface.

On the other hand, a mounting portion 27 for mounting the substrate case 10 is formed on the back surface of the plate-like portion 9a of the winning ball collecting cover 9. The mounting portion 27 is surrounded by a rectangular frame 28, and the inside is partitioned by a plurality of grid-like partition frames 28a. Mounting recesses 29, 29 surrounded by a square partition frame 28a are formed at positions corresponding to the locking members 25, 25 on the back surface of the base plate 11. Inner surface 2 of left and right partition frames 28a, 28a of each mounting recess 29, 29
9a and 29a, as shown in FIG.
Locking step portions 30, 30 are provided as engaged portions with which the 6, 26 claw portions 26a are engaged. In addition, through holes 31 having an appropriate size are formed in the plate-shaped portion 9a so as to be opposed to the locking step portions 30 and 30 and continuous with the mounting recesses 29 and 29.

The mounting structure of the board case in the pachinko gaming machine according to the present invention has the above-described structure. The circuit board 12 is disposed on the front surface of the base plate 11, and the receiving frame 16 and each mounting boss 14 are provided.
Abut on the front end face of Next, the cover 13 is attached so as to cover the front surface of the circuit board 12, screws 22 are inserted into the screw insertion holes 21 through the respective tool insertion tube portions 19, and the tool insertion tube is inserted from the front surface of the cover 13. By inserting a screwdriver or the like into the portion 19 and screwing the screw 22 into each screw hole 15, the cover body 13 is fixed to the base plate 11, and the board case 10 is assembled. Further, in this state, a sealing plug 23 having an organic solvent adhesive obtained by mixing tetrahydrofuran and methyl ethylene ketone is adhered to the outer peripheral surface of each of the tool insertion tube portions 19, with the concave portion 24 being inside, and a notch. The surface 23a and the notch opening 20a are fitted in a state of being aligned. As a result, the sealing plug 23 closes each tool insertion tube portion 19 and the sealing plug 23 is irremovably fitted by welding, so that the screw 22 cannot be unnecessarily removed.

Then, the substrate case 10 sealed in this way is arranged so that the back surface of the base plate 11 faces the mounting portion 27 on the back surface of the winning ball collecting cover 9, and the upper and lower locking members 25, The two hooking pieces 26, 26 are inserted into the mounting recesses 29, 29, respectively, and the claws 26a, 26a are engaged with the locking steps 30, 30, respectively. In this state, the locking members 25, 25 on the back surface of the base plate 11 are concealed without any gap by the rectangular frame 28 and the partition frame 28a that abut on the base plate 11, so that The engagement cannot be released, and a screwdriver or the like is inserted into the mounting recesses 29, 29 only from the surface through the respective through holes 31, 31, and the claw 2 is inserted from the engagement steps 30, 30.
6a and 26a can be removed.

Therefore, the board case 10 of the pachinko gaming machine
In order to replace the pachinko machine with the modified board case, the front frame of the pachinko game machine must be opened, and then the mechanism plate 3 must be opened to remove the winning ball collecting cover 9 from the back surface of the game board 2, and furthermore, the through hole Extremely complicated work such as inserting a screwdriver into the 31, 31 to release the engagement is required, and it takes a long time, so that it is difficult to work during the operation of the pachinko hall, so that the board case 10 can be easily replaced. Such misconduct is prevented.

FIGS. 7 and 8 relate to another embodiment, in which a pair of left and right engaging holes 32, 32 are formed as upper and lower central portions of a base plate 11 of a substrate case 10, respectively. On the other hand, locking members 33, 33 are integrally provided on the upper and lower portions of the mounting portion 27 on the back surface of the winning ball collecting cover 9, and the upper and lower portions of the locking members 33, 33 are respectively provided on both left and right ends. The claw portions 34a, 34a projecting horizontally at the positions corresponding to the locking holes 32, 32 and facing each other outward.
The latching pieces 34, 34 as an engaging portion having are provided integrally. Then, the substrate case 10 is disposed so that the back surface of the base plate 11 faces the mounting portion 27, and the upper and lower locking holes 32, 32 are respectively formed with the respective locking pieces 34, 3 as shown in FIG.
Attachment is performed by engaging the four claw portions 34a, 34a at the tip. Further, through holes 31, 31 are formed in the plate-like portion 9 a of the winning ball collecting cover 9 on the outside of the base end side of each of the hook pieces 34, 34, and a driver or the like can be opened from the front of the winning ball collecting cover 9. The board case 10 can be removed by bending the insertion hooking pieces 34 and 34 inward to release the engagement.

[0019]

As described above, the mounting structure of the board case of the pachinko gaming machine according to the present invention engages with the back surface of the winning ball collecting cover and the back surface of the opposing board case, and An engaging portion or an engaged portion that can be disengaged only from the surface of the ball assembly cover is provided, so to remove the board case, open the front frame of the pachinko gaming machine and then open the mechanism plate to win The ball assembly cover must be removed from the back of the game board, and furthermore, it requires extremely complicated and time-consuming work such as releasing the engagement with a driver through a through-hole. This has the effect of preventing fraudulent acts such as easy replacement of the case.

[Brief description of the drawings]

FIG. 1 is a rear view of a pachinko game machine to which the present invention is applied.

FIG. 2 is a perspective view of a main part showing an attached state of a board case.

FIG. 3 is a perspective view of a main part showing a state where a board case is removed.

FIG. 4 is a perspective view of a board case.

FIG. 5 is an exploded perspective view of the board case.

FIG. 6 is a cross-sectional plan view showing a mounting state of the board case.

FIG. 7 is a perspective view of a main part showing a state where a board case according to another embodiment is removed.

FIG. 8 is a cross-sectional plan view showing a mounted state of a board case according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gaming machine (pachinko gaming machine) 2 Gaming board 9 Winning ball set cover 10 Board case 12 Circuit board 26, 26 Engaging part (hanging piece) 30, 30 Engaged part (locking step part) 32, 32 Engaging part (locking hole) 34, 34 Engaging part (locking piece)

Claims (1)

[Claims] 1. A prize ball collecting cover for gathering prize balls is provided on the back of a game board, and a substrate case containing a circuit board for controlling a game state is mounted on the back of the prize ball collect cover. In the gaming machine described above, the engaging portion or the engaging portion which engages with the back surface of the winning ball collecting cover and the back surface of the substrate case opposed thereto and can release the engagement only from the front surface of the winning ball collecting cover. A mounting structure for a board case in a gaming machine, wherein a joining portion is provided.