JP2736418B2 - Gaming machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a gaming machine represented by a pachinko gaming machine, a coin gaming machine, and the like, and more particularly, to a synthetic resin material mainly provided on the back side of the gaming machine. And a control circuit board including a control center circuit that operates according to a control program to execute predetermined control, and a conductive circuit board case surrounding the circuit board. .

2. Description of the Related Art Conventionally known game machines of this type include, for example, a mechanism plate mainly formed of a synthetic resin material provided on the back side of the game machine, and an operation board according to a control program. There has been a gaming machine including a control circuit board including a control central circuit for executing predetermined control, and a conductive circuit board case surrounding the circuit board. In addition, an electronic circuit including the control central circuit is provided in the circuit board, whereby the circuit board controls various devices of the gaming machine.

[Problems to be Solved by the Invention] On the other hand, the mechanism plate provided on the back surface of the gaming machine is generally made by injection-molding a synthetic resin material such as plastic, and receives a prize in a safe hole or the like of a driving ball. A prize ball payout mechanism for paying out prize balls is provided. For this reason, when paying out prize balls from the prize ball payout mechanism, a large amount of prize balls are discharged at once through a narrow passage, so that static electricity is easily generated due to friction between the balls and the mechanism plate. The static electricity generated in this way is not so problematic if it is discharged relatively quickly.However, it is easy to charge and accumulate on the mechanism plate made of synthetic resin material. May be Then, the circuit board case is also charged together with the charging of the mechanism plate, a discharge occurs between the control circuit board and the circuit board case, and noise enters a data line for data transmission on the circuit board. Had occurred. Then, there is a disadvantage that the electronic circuit formed in the control circuit board may malfunction or break down due to the influence of the noise.

The present invention has been made in view of the above circumstances, and has as its object to prevent an adverse effect due to noise caused by a discharge generated between a circuit board case and a circuit board.

[Means for Solving the Problems] The present invention provides a mechanism board mainly provided with a synthetic resin material provided on the back side of a gaming machine, and a control central circuit which operates according to a control program to execute predetermined control. A game machine including a control circuit board including: a conductive circuit board case surrounding the circuit board, wherein the mechanism plate stores a prize ball to be paid out to a player above the mechanism board. Prize ball storing member, an alignment path for aligning prize balls below the prize ball storage member, and a prize ball for paying out a predetermined number of prize balls based on a winning mode at the end of the alignment path. A dispensing mechanism, a ground line is formed on the front and back surfaces of the circuit board, a plurality of mounting holes are formed, and one of the plurality of mounting holes is formed near one end of the circuit board. Into the mounting hole A line is extended, and the control central circuit is provided so as to be biased toward the other side opposite to the one side end, and the circuit board case has a plurality of conductive members corresponding to the plurality of mounting holes. The circuit board is fastened to the plurality of mounting portions via the mounting holes, and the mounting hole extending the ground line is connected to the mounting portion of the circuit board case. The ground line of the circuit board is electrically connected to the circuit board case.

[Operation] When the circuit board is surrounded by the conductive circuit board case, the mounting hole extending the ground line is connected to the mounting portion of the circuit board case, so that the ground line of the circuit board is connected. And the circuit board case are electrically connected. Further, the ground line extends to a mounting hole formed near one side end of the circuit board among the plurality of mounting holes, and the control center circuit is connected to the other side end opposite to the one side end side. Because it is biased to the side,
The distance from the mounting hole in which the ground line extends to the control central circuit becomes longer, and when a discharge voltage is applied to the mounting hole, a voltage as large as possible between the mounting hole and the control central circuit. A descent can occur.

Next, an embodiment of the present invention will be described in detail with reference to the drawings.

First Embodiment FIG. 1 is an overall front view showing a pachinko gaming machine 300 which is an example of a gaming machine according to the present invention.

In the figure, reference numeral 216 denotes a hitting ball supply tray. Pachinko balls in the hitting ball supply tray 216 are supplied one by one to a hitting ball firing device (not shown), and the operation handle 200 is operated by a player to thereby control the operation. The pachinko balls supplied by operating the hit ball firing device are fired and fired into the game area 202 one by one. Pachinko balls that are driven into the gaming area 202 have various winning ports 21
If the player wins 0,212, a predetermined number (for example, 13) of prize balls are paid out from the prize ball outlet 214 into the hit ball supply tray 216. When a pachinko ball hit in the game area 202 wins in the start winning port 204, the variable display device 206, which is an example of the electric game device, starts variable display, and the predetermined time elapses and The variable display device 206 stops in response to a user's stop operation or the like. Then, when the identification information displayed by the stopped variable display device 206 becomes a predetermined combination (for example, 777), a big hit state occurs, and the variable winning ball device 208 which is an example of the electric gaming device is opened. The pachinko ball is ready to win. When a pachinko ball wins in the opened variable winning ball device 208, a predetermined number (for example, 13) of prize balls are paid out from the prize ball outlet 214 for each winning ball. The opening of the variable prize ball device 208 ends when a predetermined time (for example, 30 seconds) elapses or when a predetermined number (for example, 10) of pachinko balls is input, whichever is earlier, is satisfied,
Switches to the closed state.

FIG. 2 is an overall rear view showing the internal structure of the pachinko gaming machine 300.

Pachinko balls that have won in the winning ports 210 and 212 and the variable winning ball device 208 are gathered by the winning ball collecting gutter 218 and guided to the winning ball processor 220. And winning ball processor 220
Swings downward once, one of the winning balls is sent downward, and the pachinko ball swings the operating rod 222 downward. Then, in conjunction with the downward swing of the operating rod 222, the prize ball payout mechanism 224 operates, and a predetermined number (for example, 13)
Are released from the prize ball payout mechanism 224. The released prize ball swings down the passive plate 226 and falls into the payout passage 228, from which it passes through the prize ball outlet 214 and is paid out into the hitting ball supply tray 216 (see FIG. 1). You.

On the other hand, if the passive plate 226 is swung downward, the prize-ball processing unit 220, which has swung downward in conjunction with the swing, is lifted upward, and the next prize-ball is guided by one. It becomes possible to do this. The prize ball processor 220 can supply one prize ball to the operating rod 222 side by one when a prize ball is paid out from the prize ball payout mechanism 224. By operating the mechanism 224, it becomes possible to pay out prize balls. The prize ball payout mechanism 224 is supplied with the prize balls stored in the prize ball storage member 230 in an aligned state through the alignment path 232. In addition, the winning prize ball collecting trough 218 and the prize ball payout mechanism 224
A guide gutter and the like for guiding the prize balls paid out from to the payout passage 228 are formed by the mechanism plate 234. The mechanism plate 234 is formed by injection molding a synthetic resin material such as plastic. The mechanism plate 234 is provided with the prize ball payout mechanism 224, the prize ball storage member, and the alignment path 232. Note that a metal plate is partially used for the mechanism plate 234 in consideration of strength. Although the ball game machine in the present embodiment has shown that a prize ball is paid out with a hit of a hit ball, the present invention is not limited to this, and the variable display device is in a predetermined display state. For example, a prize ball may be paid out when a predetermined game state other than the occurrence of a prize ball is established.

FIG. 3 is a perspective view showing the internal structure of the back side of the pachinko gaming machine 300.

In the figure, reference numeral 234 denotes a mechanism plate, and a game control unit 2 is provided on the back side of the mechanism plate 234, and a wiring 24a from the game control unit 2 is connected to the variable display device 206. Also,
Another wiring 24b, 24c from the game control unit 2 is connected to the wiring relay board.

FIG. 4 is an exploded perspective view showing the game control unit 2.

The game control unit 2 includes a circuit board case including an upper case 4 and a lower case 8, and a circuit board 6 housed in the circuit board case. The circuit board 6 has a ground line 40 (FIG. 6) attached to the front and back surfaces of the board body 16. On the circuit board 6, an MPU and a RAM 44, which are main parts of the control circuit, and a ROM 46, which is a main part of the control circuit, are mounted. Further, various circuit elements, electronic components, and the like are mounted on the circuit board 6. The MPU, RAM44
A bypass capacitor (not shown) is provided between the current input unit such as the ROM 46, the ROM 46, and the circuit element 18 and the ground line. This bypass capacitor absorbs the surge of the input voltage with respect to the ground line, thereby preventing the entry of noise as much as possible. This bypass capacitor is a well-known one composed of an electric field capacitor (tantalum capacitor) and a non-polar capacitor. Further, the circuit board 6 is provided with connection terminals 20a, 20b, 20c, and the connection terminals 20a, 20b, 20c are connected to the connection terminals 22a, 22b.
b, 22c are connected. Wirings 24a, 24b, 24c are attached to the connection terminals 22a, 22b, 22c, respectively. At four corners of the circuit board 6, ground extension mounting holes 38a and 38d and mounting holes 38b and 38c are provided. The ground line extending mounting holes 38a and 38b are shown in FIG.

The lower case 8 is formed of a metal, which is an example of a conductive material, and has conductive mounting portions 36a, 36b, 36c, 36 at four corners of the lower plate 26.
d is provided. The conductive material may be a synthetic resin. The mounting portions 36a, 36b, 36c, 36d are provided with mounting holes 38a, 38b, 38c, 38d formed in the circuit board 6.
, And the circuit board 6 is fixed to the lower case 8. The lower case 8 is provided with an upright wall 30 and fixed pieces 28a, 28b (see FIG. 5 for 28a) for attaching the game control unit 2 to the mechanism plate are formed on both side surfaces. I have. Further, mounting holes are provided on both side surfaces of the lower plate 26.
34a, 34b, 34c, 34d (34c, 34d are not visible in the drawing) are drilled.

The upper case 4 is formed of a metal as an example of a conductive material. The top plate 11 and the side plates 14a and a pair of side plates 14b and 14c (14c is not visible in the drawing) are provided on the top plate 11 and the side plates 14b to release heat generated from the circuit board 6. Many heat release holes 12 are formed. Further, mounting holes 32a, 32b, 32c, 32d are formed in the pair of left and right side plates 14b, 14c.
(32c, 32d are not visible in the drawing). The mounting holes 32a, 32b, 32c, 32d are aligned with the mounting holes 34a, 34b, 34c, 34d formed in the lower case 8. And the upper case 4 and the lower case 8 are fixed by screws.
Are integrally fixed, and the circuit board 6 can be housed in both cases. In the figure, reference numeral 10 denotes a wiring cover for biasing the wirings 24a, 24b, 24c to one side as shown in the figure and covering the wiring from above.

 FIG. 5 is a front view showing a circuit board.

In the figure, reference numeral 40 denotes ground lines provided on the front surface and the back surface of the circuit board, and a plurality of conduction holes 42 for electrically connecting the ground lines 40 are formed. Reference numeral 52 in the figure denotes a ground line extending portion that extends the ground line to the mounting hole. The ground line extending mounting hole, which is the mounting hole in which the ground line extends, is indicated by reference numeral 38a in the figure. , 38d. The ground line extending portion 52 is formed of the mounting holes 38a, 38b, 38c, 38d provided at the four corners of the circuit board 6 as a main part of the control circuit.
It is formed only in the mounting holes 38a, 38d farther from the place where the PU, RAM 44 and ROM 46 as the main part of the control circuit are provided. That is, the MPU, the mounting holes 38b and 38c formed in the immediate vicinity of the RAM 44 and the RAM 46 are formed with the ground line cutouts 54 so that the ground lines do not extend to the mounting holes 38b and 38c. doing.

A portion surrounded by a dashed line in the drawing is a power supply circuit portion 48, and the power supply circuit portion 48 is provided with a choke coil 50. The choke coil 50 removes an alternating current component from the current supplied from the power supply, and can reduce noise that has entered from the power supply.

In the figure, 20a, 20b, 20c are connection terminals, 28a, 28b are fixing pieces,
30 is a standing wall.

FIG. 6 is a vertical cross-sectional view showing an attached state of the game control unit 2.

The game control unit 2 is attached to the downflow gutter cover 58 of the mechanism plate. The downflow gutter cover 58 is made of synthetic resin such as plastic. In the figure, reference numeral 90 denotes a game space, which is formed between the glass plate 84 and the game board 88. 92
Is an obstacle nail. When the pachinko ball that has fallen in the gaming space 90 wins in the winning opening 110, it enters into the winning ball collecting space 86 formed on the back side of the gaming board 88 and falls downward. The prize ball flow down gutter 56 is formed further behind the prize ball collecting space 86, and the prize ball paid out from the prize ball payout mechanism 224 (see FIG. 2) falls. The downflow gutter cover 58 forms the back wall of the prize ball downflow gutter 56. A pair of mounting protrusions 60 are formed integrally with the downflow gutter cover 58, and mounting substrates 62a and 62b are mounted on the mounting protrusions one by one. The game control unit 2 can be mounted on the mounting boards 62a and 62b. In the drawing, reference numeral 64 denotes a mounting urging member, and 72 denotes a lower guide groove, the details of which will be described later.

In the mounted state of the game control unit 2, a first space 78 is formed between the downflow gutter cover 58 and the lower plate 26, and a second space 80 is formed between the lower plate 26 and the circuit board 6, Further, a third space portion 82 is formed between the circuit board 6 and the upper surface plate 11. The first space portion 78 prevents transmission of static electricity generated in the downflow gutter cover 58 to the lower plate 26 as much as possible. The mounting hole that matches the mounting portion 36a has a ground line extension 52
Is formed, and the ground line is
40 and the circuit board case are electrically connected via the mounting portion 36a. As a result, the ground line 40 of the circuit board 6 and the circuit board case have substantially the same potential, so that discharge between the circuit board case and the circuit board 6 can be prevented.
Also, since the ground line extending mounting holes 38a and 38d are selected only as mounting holes far from the MPU, RAM44 and ROM46 which are main parts of the control circuit (see FIG. 5), the downflow gutter cover 58 and the lower plate 26, and even if the voltage is applied to the ground line 40 from the ground line extending mounting holes 38a, 38b, the MPU, the RAM 44, and the ROM 46, which are vulnerable to noise, are far away. The adverse effects can be reduced as much as possible.
In the figure, 42 are conductive holes for electrically connecting the front and rear ground lines 40, and are formed in large numbers on the circuit board 6. The plurality of conduction holes 42 are for causing a voltage drop as much as possible before the voltage generated by the static electricity reaches the main parts 44 and 46 of the control circuit. That is, the downflow gutter cover 58 is charged to a high voltage by friction with the pachinko balls,
When a discharge occurs between the downflow gutter cover 58 and the lower surface plate 26, a current caused by the discharge first flows into the ground line 40 on the back surface side of the circuit board 6 through the mounting portion 36a. By the time the current flowing to the side reaches the main parts 44 and 46 of the control circuit, it passes through the conduction hole 42 many times and circulates many times between the back surface and the front surface of the ground line 40, thereby Voltage is the main part of the control circuit 44, 46
The voltage drop can be caused as much as possible before reaching. That is, the conduction hole 42 has a function of maximizing the distance of current flow from the mounting portion 36a to the main portions 44 and 46 of the control circuit.

In the figure, reference numeral 54 denotes a cut-out portion of the ground line, and the mounting portion 36c
Is configured so that only the substrate body 16 contacts the ground line 40, and the ground line 40 is formed so as not to contact the mounting portion 36c.

 In the figure, 14a and 14d are side plates, and 28a and 28b are fixing pieces.

FIG. 7 is a perspective view for explaining a method of attaching the game control unit 2 to the downflow gutter cover 58.

Mounting substrates 62a and 62b are mounted on the downflow gutter cover 58. The upper mounting board 62a has upper position regulating portions 68a, 6
8b, a left and right movement restricting section 67, and a wiring processing section 70 are formed. A mounting urging member 64 made of an elastic material is mounted on the upper mounting substrate 62a.

A lower guide groove 72 and a rightward position regulating portion 74 are formed in the lower mounting substrate 62b.

Then, first, the operator pulls up the operation piece 66 of the attachment urging member 64 upward with a finger to elastically deform it, and in this state, the guide piece 28b of the game control unit 2 is fitted into the lower guide groove 72, In the fitted state, the game control unit 2 moves the rightward position regulating unit 74.
The game control unit 2 is slid rightward until it comes into contact with. Next, the position regulating projection 76 which also serves as an assembly screw
The game control unit 2 is fitted to the left and right movement restriction unit 67.
To the downflow gutter cover 58 side. In a state where the game control unit 2 is pressed against the downflow gutter cover 58, the vertical position of the game control unit 2 is adjusted so that the game control unit enters under the upper position regulating units 68a and 68b. When the position adjustment in the left-right direction and the up-down direction is completed, the operation piece 66 is released, and the fixing piece 28a is pressed toward the mounting board 62a by the elastic force of the mounting urging member 64. Is held elastically. That is, as shown in FIG.
With the fixing piece 28b fitted in the lower guide groove 72, the upper fixing piece 28a is connected to the upper mounting board 62a and the mounting urging member.
The fixing urging member 64 holds the fixed piece 28a pressed against the mounting substrate 62a.

The circuit board 6 constitutes a control circuit board including a control central circuit that operates according to the control program and executes predetermined control. The control central circuit is constituted by the MPU 44.

The ground line extending mounting holes 38a and 38d form mounting holes formed near one end of the circuit board among the plurality of mounting holes.

The arrangement position of the control central circuit provided to be biased toward the other end opposite to the one end is illustrated by the arrangement position of the MPU 44 shown in FIG.

Second Embodiment A second embodiment will be described with reference to FIG. 8 and FIG. In the second embodiment, since the configuration of the entire gaming machine and the mounting location of the control unit are the same as those in the first embodiment, description thereof will be omitted, and only the configuration of the control unit will be described. .

FIG. 8 is an exploded perspective view showing the game control unit 100.
FIG. 9 is a sectional view of the game control unit 100.

The game control unit 100 includes a circuit board case including an upper lid 102 and a lower plate 106, and a circuit board 104 housed in the circuit board case. The circuit board 104 has connection terminals 116a to
116d is provided, and various electronic devices are attached. Further, mounting holes 1 are provided at the four corners of the circuit board 104.
18a, 118b, 118c and 118d are formed.

The lower plate 106 is formed by punching and then bending a plate made of a metal, which is an example of a conductive material.
In the drawing, 120a, 120b, and 120d are mounting pieces that are inserted into and fitted into the mounting holes 118a, 118b, and 118d, and 120c is the mounting hole.
It is a mounting piece fixed with screws via 118c, and formed by bending. That is, the mounting pieces 120a, 120
b, 120d are inserted into the mounting holes 118a, 118b, 118d, and in this state, the game control unit 100 is moved in the direction of the arrow shown in the figure (left direction in the figure), as shown in FIG. Then, the inner edge portion of the mounting hole enters the fitting groove 124 shown in FIG. Since the fitting groove 124 is formed in a tapered shape having an angle θ as shown in FIG. 9, there is an advantage that the inner edge of the mounting hole is easily fitted. And
In a completely fitted state, the hole formed in the mounting piece 120c and the mounting hole 118c are in communication, and a screw is inserted into the communication hole and fixed. This allows easy circuit board
The lower plate 106 can be attached and fixed to the lower plate 106. Also, lower plate 10
Mounting holes 132a and 132b (132b is not visible in the drawing) are formed on both left and right side surfaces of 6. Reference numerals 122a and 122b denote locking projections.

The upper lid 102 is made of a metal as an example of a conductive material. In the figure, reference numeral 108 denotes a connector cover, which is screwed to the upper lid 102, covers the connection terminals 114a to 114d fitted to the connection terminals 116a to 116d from above, and is connected to the connection terminals 114a to 114d. This is for aligning the wiring by biasing it to one side. In the figure, 110a and 110b are locking pieces, in which engagement holes 112a and 112b are formed, respectively.
The locking projections 122a, 122b of the lower plate 106 are
It is configured so that it can be inserted and inserted into b and locked and held (see FIG. 9). And the locking projections 122a, 122b are
2b, the mounting holes 130a, 130b (130b are not visible in the drawing) formed in the upper plate 102 and the mounting holes 132a, 132b of the lower plate 106 are in communication with each other. And the upper plate 102 and the lower plate 106 are integrally fixed.

In the second embodiment, since the lower plate 106 is formed by punching and then bending, the mounting pieces 120a to 120d and the locking projections 122a and 122b are formed. There is no need to mount the components, and the number of parts can be reduced.

According to the present invention, since the circuit board case and the ground line of the circuit board are electrically connected, the circuit board is shielded by the circuit board case connected to the ground line. Noise can be prevented. Further, the ground line extends to a mounting hole formed near one side end of the circuit board among the plurality of mounting holes, and the control center circuit is connected to the other side end opposite to the one side end side. As a result, the distance from the control center circuit to the mounting hole through which the ground line extends can be increased, and a large voltage can be applied between the mounting hole and the control center circuit. A descent can occur. Accordingly, when a discharge occurs outside the circuit board case and a discharge voltage is applied from the circuit board case to the ground line via the mounting hole, it is as little as possible that the control central circuit is affected by the discharge voltage. Can be prevented.

[Brief description of the drawings]

FIG. 1 is an overall front view showing a first embodiment and showing a pachinko gaming machine which is an example of a gaming machine according to the present invention. FIG. 2 shows the first embodiment and is an overall rear view showing the internal structure of the pachinko gaming machine. FIG. 3 is a perspective view showing the first embodiment and showing the internal structure of the back side of the pachinko gaming machine. FIG. 4 shows the first embodiment, and is an exploded perspective view of a game control unit. FIG. 5 shows the first embodiment, and is a front view of a game control unit. FIG. 6 is a longitudinal sectional view showing the first embodiment and showing the game control unit in an attached state. FIG. 7 shows the first embodiment, and is a perspective view for explaining a method of attaching the game control unit. FIG. 8 shows the second embodiment, and is an exploded perspective view of a game control unit. FIG. 9 shows a second embodiment, and is a cross-sectional view of a game control unit. In the figure, 234 is a mechanism board, 206 is a variable display device as an example of an electric gaming device, 208 is a variable winning ball device as an example of an electric gaming device, 6, 104 is a circuit board, 4 is an upper case, 8 is a lower case, 1
02 is an upper cover, 106 is a lower plate, 300 is an example of a gaming machine, a pachinko gaming machine, 230 is a prize ball storage member, 232 is an alignment path, 224
Is a prize ball payout mechanism, 40 is a ground line, 38a and 38d are ground line extending mounting holes, 38b and 38c are mounting holes, 52 is a ground line extending portion, 36a to 36d are mounting portions, 44 is an MPU, RAM, Four
6 is a ROM, 18 is a circuit element, 48 is a power supply circuit, 50 is a choke coil, and 54 is a ground line cutout.

Claims (1)

(57) [Claims] 1. A control board provided on a back side of a gaming machine, which is mainly formed of a synthetic resin material, a control circuit board including a control center circuit which operates according to a control program and executes predetermined control; A game machine including a conductive circuit board case surrounding the circuit board, wherein the mechanism plate has a prize ball storing member for storing a prize ball to be paid out to a player at an upper portion of the mechanism board, A circuit for arranging prize balls at a lower portion of the prize ball storage member, and a prize ball payout mechanism for paying out a predetermined number of prize balls based on a winning mode at an end of the arrangement path; A ground line is formed on the front and back surfaces of the substrate, and a plurality of mounting holes are formed. The ground line is formed in a mounting hole formed near one end of the circuit board among the plurality of mounting holes. Extend The central circuit is provided to be biased toward the other side opposite to the one side end, and the circuit board case is integrally provided with a plurality of conductive mounting portions corresponding to the plurality of mounting holes, The circuit board is fixed to the plurality of mounting portions via the mounting holes, and the mounting holes extending the ground line and the mounting portions of the circuit board case are connected to each other. A game machine characterized by conducting with the circuit board case.