JP2006041428A - Circuit board, game machine, and drum-rotating type game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum-rotating game machine, which is developed based on the background, having improved noise-proof performance and being little affected by noises, such as external electromagnetic waves. <P>SOLUTION: On a grounding layer of a stage-managing control board 60, that is a multilayered wiring board arranged on the body of a drum-rotating type game machine, there are formed a second grounding region 62b that is connected to the grounding part of boards such as a liquid crystal control board and the like, arranged at a door part of the game machine and a first grounding region 62a that is electrically insulated from the second grounding region 62b in the stage-managing control board and is connected to an earth part and the like of an integrated circuit element mounted on the stage-managing control board 60 as the relevant board. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a circuit board, a gaming machine, and a rotating type gaming machine that are hardly affected by noise.

  2. Description of the Related Art Conventionally, in a gaming machine such as a swivel type gaming machine, not only a main board that controls overall game contents but also various boards and electrical components are distributed in a housing. FIG. 10 is a schematic diagram for explaining the grounding (grounding) wiring of a conventional spinning cylinder type gaming machine. 10 includes, in addition to the main board 10, an effect control board 160 that mainly controls the effects of the game, a liquid crystal control board 72 disposed in the door, and an effect control board 160. And an effect relay board 100 for relaying signals and power to be sent to electric parts such as a liquid crystal control board 72 and a speaker arranged on the door.

  Further, in the conventional swivel-type game machine shown in FIG. 10, since the board such as the liquid crystal control board 72 arranged in the door part (hereinafter also simply referred to as a door part board) is controlled by the effect control board 160. The ground of the door unit board is also connected to the ground of the effect control board in the effect control board 60, and is further connected to the ground of the main board 10 together with the ground of the effect control board 60.

JP 2003-164560 A

  By the way, in a rotating type gaming machine, the door part board such as a liquid crystal control board arranged on the back side of the door part is closer to the outside world than other main boards arranged inside the housing, so that It is easily affected by noise such as electromagnetic waves. In recent years, the CPU of the production control board 60 has a low operating voltage. In this respect, the production control board is easily affected by external noise. For this reason, when an unusually large noise is applied to the rotating type gaming machine from the outside, the door unit board such as the liquid crystal control board 72 picks up the noise and is transmitted to the effect control board arranged on the main body side, and the effect control board May malfunction, and noise countermeasures have become an important issue in gaming machines such as a swivel type gaming machine.

  The present invention has been made based on the above circumstances, and provides a circuit board, a gaming machine, and a revolving type gaming machine that improve noise resistance performance and are not easily affected by noise such as electromagnetic waves from the outside. It is the purpose.

  According to a first aspect of the present invention, there is provided a circuit board having an integrated circuit element mounted thereon, the circuit board being connected to a ground portion of the integrated circuit element. The first grounding area and the first grounding area are electrically insulated in the circuit board, and other electrical components such as other circuit boards disposed in a housing that houses the circuit board. And a second grounding region connected to the grounding part.

  In order to achieve the above object, a gaming machine according to a second aspect of the present invention comprises the circuit board according to the first aspect.

  In order to achieve the above object, a gaming machine according to a third aspect of the present invention is the gaming machine according to the second aspect, wherein the circuit board is mainly used as an effect control board for effect control of games. It is a feature.

  A gaming machine according to a fourth aspect of the invention for achieving the above object is the gaming machine according to the third aspect, wherein the first grounding area and the second grounding area of the effect control board are shared. The main board is provided with a third grounding area connected to the main board and controls the entire game content.

  In order to achieve the above object, the gaming machine according to claim 5 is the gaming machine according to claim 2, 3 or 4, wherein the casing has an openable / closable door portion, and the other An electrical component such as a circuit board is provided in the door portion.

  In order to achieve the above object, a gaming machine according to claim 6 is the gaming machine according to claim 2, 3, 4 or 5, wherein the other circuit board is controlled by the circuit board. It is characterized by being.

  In order to achieve the above object, a swivel type gaming machine according to the invention described in claim 7 includes the circuit board according to claim 1, and the circuit board is an effect control board for mainly controlling the effect of the game. The other circuit board includes a liquid crystal control board arranged on the door portion for controlling the liquid crystal panel.

  According to the first aspect of the present invention, the ground region of an electrical component such as another circuit board disposed in the housing and the ground region of the integrated circuit element mounted on the circuit board are within the circuit board. Because it is electrically insulated, even if the ground potential of other circuit boards and other electrical components fluctuates due to the effects of noise such as electromagnetic waves received from the outside of the housing, the effect on the ground potential of the circuit board is suppressed. Therefore, the noise resistance performance of the circuit board can be improved.

  According to the second aspect of the present invention, the ground area of an electrical component such as another circuit board disposed in the housing and the ground area of the integrated circuit element mounted on the circuit board are within the circuit board. Because it is electrically insulated, even if the ground potential of other circuit boards and other electrical components fluctuates due to the effects of noise such as electromagnetic waves received from the outside of the housing, the effect on the ground potential of the circuit board is suppressed. Therefore, it is possible to provide a gaming machine capable of improving noise resistance performance.

  According to the third aspect of the present invention, the ground region of an electrical component such as another circuit board disposed in the housing and the ground region of the integrated circuit element mounted on the circuit board are within the circuit board. Because it is electrically insulated, even if the ground potential of electrical components such as other circuit boards fluctuates due to the influence of noise such as electromagnetic waves received from the outside of the housing, the effect on the ground potential of the production control board is affected. Accordingly, it is possible to provide a gaming machine that can be suppressed and, therefore, improved in noise resistance performance.

  According to the fourth aspect of the present invention, the ground area of the electrical component such as another circuit board disposed in the housing and the ground area of the integrated circuit element mounted on the circuit board are within the circuit board. Because it is electrically insulated, even if the ground potential of electrical components such as other circuit boards fluctuates due to the influence of noise such as electromagnetic waves received from the outside of the housing, the effect on the ground potential of the production control board is affected. In addition, the first grounding region and the second grounding region are collectively grounded by the third grounding region of the main board which is more resistant to noise than other boards, thereby further improving noise resistance performance. A gaming machine that can be improved can be provided.

  The invention according to claim 5 has the same effect as the invention according to claim 2. Further, the invention described in claim 6 has the same effect as the invention described in claim 2.

  According to the seventh aspect of the present invention, the ground area of an electrical component such as another circuit board disposed in the housing and the ground area of the integrated circuit element mounted on the circuit board are within the circuit board. Because it is electrically insulated, even if the ground potential of electrical components such as other circuit boards fluctuates due to the influence of noise such as electromagnetic waves received from the outside of the housing, the effect on the ground potential of the production control board is affected. It is possible to provide a swivel-type gaming machine that can be suppressed and that can improve noise resistance.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a schematic front view of a gaming machine according to an embodiment of the present invention, and FIG. 2 is a schematic block diagram of the gaming machine. Here, a case where the gaming machine is a so-called pachislot machine called a pachislot machine will be described.

  As shown in FIGS. 1 and 2, the swivel type gaming machine of the present embodiment includes a main board 10, five sub-boards 20 </ b> A, 20 </ b> B, 20 </ b> C, 20 </ b> D, 20 </ b> E, and a first turn. Cylinder reel 31a, second cylinder reel 31b, third cylinder reel 31c, first cylinder reel drive means 32a, second cylinder reel drive means 32b, third cylinder reel drive means 32c, display Window 33, medal insertion port 34, medal discharge port 35, medal tray 36, insertion medal sensor 41, MAX bet button 42, one-sheet insertion button 43, start lever 44, and first stop button 45a A second stop button 45b, a third stop button 45c, a clearing button 46, a door sensor 47, a payout medal sensor 51, a payout motor 52, an effect control board 60, an image display unit 70, an electric display Decoration display unit 80 , And a speaker portion 90.

  The main board 10 mainly performs control of game contents and payout of medals (game media). The main board 10 executes a ROM that stores various programs related to control of game content, a RAM that is a working memory that temporarily stores data, and a program stored in the ROM. A plurality of integrated circuit elements such as a CPU for performing game state management, internal lottery processing based on random values, driving / stopping of the reels 31a to 31b, command transmission processing to the effect control board 60, etc. are mounted. Has been. Such an integrated circuit element is mounted not only on the front surface of the main substrate 10 but also on the back surface. The main substrate 10 is provided with multilayer wiring. Wirings formed in each layer are connected to each other through a large number of through holes formed in the main substrate 10.

  The sub-boards 20A, 20B, 20C, 20D, and 20E are for assisting the control performed by the main board 10. That is, the sub-boards 20A, 20B, 20C, 20D, and 20E are formed on a board different from the main board 10 but are functionally boards belonging to the main board 10. For example, each of the sub-boards 20A, 20B, 20C, 20D, and 20E transmits or receives a signal necessary for the main board 10 to control the game contents or the medal payout to the main board 10 or receive it from the main board 10. To do. Specifically, the contents of these sub-boards are a reel board 20A, an operation part relay board 20B, a middle board 20C, a power board 20D, and a payout board 20E. A plurality of integrated circuit elements are mounted on each sub-board 20A, 20B, 20C, 20D, 20E. Each sub-board 20A, 20B, 20C, 20D, 20E is provided with multilayer wiring. And in each sub-board | substrate 20A, 20B, 20C, 20D, 20E, the wiring formed in each layer is connected mutually through many through holes.

  On the other hand, the effect control board 60 mainly performs control related to game effects. The effect control board 60 is functionally independent from the main board 10 in that it performs control related to game effects, and therefore has a completely different role from the sub boards 20A, 20B, 20C, 20D, and 20E. . The effect control board 60 controls the image display unit 70, the electrical decoration display unit 80, and the speaker unit 90 based on the signal from the main board 10.

  The reel substrate 20A controls the first drum reel driving unit 32a, the second drum reel driving unit 32b, and the third cylinder reel driving unit 32c based on a signal from the main substrate 10. The first drum reel drive means 32a drives the first drum reel 31a, the second drum reel drive means 32b drives the second drum reel 31b, and the third drum reel drive means 32c. Drives the third cylinder reel 31c. Here, as each reel drive means 32a, 32b, 32c, for example, a stepping motor is used. As shown in FIG. 1, the first spinning reel 31a, the second spinning reel 31b, and the third spinning reel 31c are arranged slightly above the center of the spinning reel game machine. Each spinning reel 31a, 31b, 31c has a symbol row in which a plurality of symbols are arranged in a row, and is configured to be rotatable.

  A transparent display window 33 is provided at a position corresponding to the reel reels 31a, 31b, 31c. The player displays three symbols attached to each of the spinning reels 31a, 31b, 31c from the display window 33 when the first spinning reel 31a, the second spinning reel 31b, and the third spinning reel 31c are stopped. Visually visible.

  The operation unit relay board 20B transmits a signal sent from a predetermined operation unit to the main board 10 or transmits a signal sent from the main board 10 to a predetermined operation unit. Here, the operation unit includes, for example, a insertion medal sensor 41, a MAX bet button 42, a one-sheet insertion button 43, a start lever 44, a first stop button 45a, a second stop button 45b, a third stop button 45c, and a checkout button. 46, door sensor 47, and the like.

  The inserted medal sensor 41 is provided inside a medal insertion slot 34 through which a player inserts medals, and detects that a medal has been inserted into the medal insertion slot 34. A detection signal from the inserted medal sensor 41 is sent to the main board 10 via the operation unit relay board 20B.

  The MAX bet button 42 and the single insert button 43 are game instruction means for instructing to bet a medal and play a game (game). The MAX bet button 42 is a button for selecting to play a game by betting three medals, and the one-insert button 43 is for selecting a game by betting one, two or three medals. It is a button to do. Specifically, by pressing the single insertion button 43 once, it is selected to play a game with one medal, and by pressing the single insertion button 43 twice, a game with two medals bet. Is selected, and by pressing the one-piece insertion button 43 three times, it is selected to play the game with three medals bet. In other words, pressing the single-load button 43 three times is the same as pressing the MAX bet button 42 once. When the MAX bet button 42 is pressed, a signal indicating that the MAX bet button 42 has been pressed is sent to the main board 10 via the operation unit relay board 20B. In addition, when the single sheet insertion button 43 is pressed, a signal indicating that the single sheet insertion button 43 has been pressed is sent to the main substrate 10 via the operation unit relay substrate 20B.

  In the present embodiment, six winning lines are set for stopping the three reel reels 31a, 31b, and 31c and aligning predetermined symbols. That is, three lines extending in the horizontal direction through each of the upper, middle and lower portions of the display window 33, lines extending from the upper left to the lower right of the display window 33, and from the lower left to the upper right of the display window 33. And a line extending from the middle of the left portion of the display window 33 toward the middle of the central portion and extending from the middle of the central portion toward the lower right. The effective winning line varies depending on how many medals are bet. When a game is played with one medal bet, only one winning line that extends in the horizontal direction through the center of the display window 33 is an effective winning line. When a game is played with two medals bet, only three winning lines extending in the horizontal direction through the upper, central and lower parts of the display window 33 are effective winning lines. When a game is played with three medals, all six pay lines are valid pay lines. When the three reel reels 31a, 31b, and 31c are stopped, when a predetermined symbol is aligned on a valid winning line among the six winning lines and a predetermined combination is established, the game is won, and a predetermined number of Medals are paid out.

  The start lever 44 is operated by the player to instruct to start the game. When the start lever 44 is operated, a signal indicating that the start lever 44 has been operated (game start signal) is sent to the main board 10 via the operation unit relay board 20B. When the main board 10 receives the game start signal, the main board 10 starts to rotate the three spinning reels 31a, 31b, and 31c.

  The first stop button 45a is for instructing to stop the rotation operation of the first drum reel 31a, and the second stop button 45b is for instructing to stop the rotation operation of the second drum reel 31b. The third stop button 45c is for instructing to stop the rotation operation of the third drum reel 31c. When the first stop button 45a is pressed, a signal indicating that the first stop button 45a has been pressed is sent to the main board 10 via the operation unit relay board 20B. When the second stop button 45b is pressed, a signal indicating that the second stop button 45b has been pressed is sent to the main board 10 via the operation unit relay board 20B. When the third stop button 45c is pressed, a signal indicating that the third stop button 45c has been pressed is sent to the main board 10 via the operation unit relay board 20B. When the main board 10 receives a signal indicating that each of the stop buttons 45a, 45b, and 45c has been pressed, the main board 10 stops the rotation operation of the spinning reel corresponding to the stop button. Thus, when the three reel reels 31a, 31b, 31c are stopped, a combination is established if the symbols attached to the reel reels 31a, 31b, 31c are in a specific combination on the effective winning line. For example, a predetermined number of medals are paid out.

  The checkout button 46 is for instructing to release a number of medals corresponding to the current number of credits. When the clearing button 46 is pressed, a signal indicating that the clearing button 46 has been pressed is sent to the main board 10 via the operation unit relay board 20B. When the main board 10 receives a signal indicating that the settlement button 46 has been pressed, the main board 10 sends a predetermined signal to the payout board 20E via the power supply board 20D, and the number of medals corresponding to the current number of credits is given to the medal outlet 35. To release from. The medal tray 36 is a tray for accumulating medals released from the medal discharge port 35.

  The door sensor 47 is for detecting that the door portion of the spinning cylinder type game machine is in an open state. When the door sensor 47 detects that the door portion is in an open state, the door sensor 47 transmits a signal indicating that the door portion is in an open state to the main substrate 10 via the operation unit relay substrate 20B. Based on the signal from the door sensor 47, the main board 10 recognizes that the door portion is in an open state.

  The middle board 20C is provided with a payout number display part 21c and a credit number display part 22c. The number-of-payout display unit 21c displays the number of medals to be paid out in accordance with the established combination when a predetermined combination is established in the game. The credit number display unit 22c displays the number of medal credits within a predetermined range. For example, the maximum number of credits can be displayed up to 50. In the present embodiment, for example, a display device including a plurality of LEDs is used as the payout number display unit 21c and the credit number display unit 22c. The main board 10 controls the payout number display part 21c and the credit number display part 22c by transmitting a predetermined signal to the middle board 20C.

  The power supply board 20D is for supplying power from an external commercial power supply to the main board 10 and the like. The payout board 20 </ b> E is for controlling the payout of medals based on a signal from the main board 10. In the present embodiment, the payout board 20E is connected to the power supply board 20D, and therefore, signal transmission with the main board 10 is performed via the power supply board 20D.

  The payout motor 52 is for driving a medal payout device (not shown). Specifically, when the payout board 20E sends a motor drive signal to the payout motor 52, the payout motor 52 drives the medal payout device, and the medal is paid out. The payout medal sensor 51 is for detecting a payout medal. The payout medal sensor 51 sends a predetermined signal to the payout board 10 every time a medal is paid out. Then, the payout board 10 transmits a signal from the payout medal sensor 51 to the main board 10 via the power supply board 20D. Thereby, the main board | substrate 10 can recognize how many medals were discharge | released.

  The image display unit 70 is provided on the upper side of the display window 33. In the present embodiment, a liquid crystal display device is used as the image display unit 70. As shown in FIGS. 1 and 2, the image display unit 70 includes a liquid crystal panel 71 and a liquid crystal control board 72 that controls the liquid crystal panel 71. The image display unit 70 variably displays images of a plurality of characters, numbers, figures, characters, and the like, thereby performing the advance notice of the winning combination, notification of predetermined information, and other game effects. The control of the image display unit 70 is performed by the effect control board 60 based on a signal from the main board 10.

  As shown in FIGS. 1 and 2, the illumination display unit 80 turns on a plurality of LED substrates 81 on which LEDs are mounted and a fluorescent lamp 82a for irradiating light to the spinning reels 31a, 31b, and 31c. And an inverter board 82 to be controlled. Each LED board 81 is provided on the left side, the center, and the right side of the upper part of the spinning cylinder type game machine, and on the left side and the right side of the display window 12. The electrical display unit 80 notifies various game states and provides game effects. The control of the electrical display unit 80 is performed by the effect control board 60 based on a signal from the main board 10. In FIG. 2, only one LED substrate 81 is shown.

  The speaker unit 90 is provided on the front side and the back side of the swivel type gaming machine. The speaker unit 90 is used to produce a game with sound. The control of the speaker unit 90 is performed by the effect control board 60 based on a signal from the main board 10.

  In general, in a gaming machine such as a swivel type gaming machine or a pachinko gaming machine, circuit boards other than the main board 10 and the sub boards 20A, 20B, 20C, 20D, and 20E are referred to as peripheral boards. That is, in the example of FIGS. 1 and 2, the effect control board 60, the liquid crystal control board 72, and the LED board 81 are peripheral boards. A plurality of integrated circuit elements are mounted on the peripheral substrate. The peripheral board is provided with multilayer wiring, and the wirings formed in each layer are connected to each other through a large number of through holes formed in the peripheral board.

  FIG. 3 is a schematic structural view of the main body 2 of the swivel type gaming machine of the present embodiment as seen from the front, and FIG. 4 is a view of the door part 3 of the swivel type of gaming machine of the present embodiment from the back. FIG. As shown in FIG. 3 and FIG. 4, the casing 1 of the swivel type gaming machine of the present embodiment includes a main body portion 2 and a door portion 3 provided on the front side of the main body portion 2 so as to be opened and closed. . As shown in FIG. 3, the main body 2 includes a main board 10, an effect control board 60, a power supply unit 25 housing a power supply board 20 </ b> D, a payout board 20 </ b> E disposed in the medal payout device 50, and the like. Is arranged. The effect control board 60 is provided perpendicular to the paper surface of FIG.

  The door unit 3 includes a liquid crystal control board 72, an LED board 81, an inverter board 82, a fluorescent lamp 82a, a speaker 90, and a signal sent from the effect control board 60 to each board disposed in the door part. An effect relay board 100 for relaying the power source and the like are arranged.

  The effect relay board 100 relays wiring from the effect control board 60 to each board disposed in the door that can be opened and closed, and wiring from the effect control board 60 is performed using a flexible flat cable. In the present embodiment, once the wiring from the effect control board is relayed by this effect relay board, the wiring to each board arranged in the door portion that can be opened and closed can be easily and reliably performed. In the wiring by the flat cable, in order to reduce the influence of noise on the signal line, the signal line and the ground line are alternately arranged using a plurality of ground lines.

  In the present embodiment, a four-layer multilayer wiring board is used as the effect control board 60. FIG. 5 is a schematic front view of the first layer of the effect control board. As shown in FIG. 5, the first layer, which is the surface layer of the effect control board 60, includes a ROM 61a in which various programs relating to the effect control of the game are stored, and a working memory for temporarily storing data. An integrated circuit element such as a logic circuit 61d and a CPU 61c that performs display control of the liquid crystal panel 71 and lighting control of LEDs and fluorescent lamps by executing a program stored in the RAM 61b and the ROM 61a are mounted. By disposing main parts such as a CPU on the surface of the effect control board, it is easy to visually recognize these main parts. In addition, the first layer receives signals and power from the connector 61e for receiving signals sent from the main board 10 and receiving power supply, and the effect relay board 100 arranged in the door. A connector 61e or the like is provided. In FIG. 5 described above, through holes, wiring patterns, and the like are omitted to simplify the drawing.

  FIG. 6 is a schematic front view of the second layer of the effect control board. The second layer of the effect control board 60 is an earth (ground) layer, and this second layer includes a ground portion and a through-hole such as an integrated circuit element such as a CPU and a ROM mounted on the first layer of the effect control board 60. In a state where the first ground region 62a connected via the first and the like and the second ground region 62b connected to the ground portion such as the liquid crystal control board 72 disposed on the door portion are electrically insulated from each other. Is formed. In FIG. 6 above, hatching is performed to distinguish the first grounding region from the second grounding region. However, in actuality, both are formed of the same copper foil and are insulated. The band 62c separates and electrically insulates the effect control board 60. Further, in FIG. 6, through holes and the like are omitted in order to simplify the drawing.

  FIG. 7 is a schematic front view of the third layer of the effect control board 60. The third layer of the effect control board 60 is a power supply layer, which is formed of a 3.3 volt region 63a, a 5 volt region 63b, a 12 volt region 63c, and a 24 volt region 63d, each formed of a conductive material such as copper foil. Are electrically insulated from each other. In the effect control board 60, 5 volts and 24 volts are used among these voltages, and the other 3.3 volts and 12 volts are supplied to the liquid crystal control board 72 and the like disposed in the door portion. . In FIG. 7, hatching is performed to distinguish each region, but in reality, each region is formed of a conductive material such as a homogeneous copper foil and is electrically separated by an insulating band 63e. Yes. Also, in FIG. 7, in order to simplify the drawing, a through hole for electrically connecting to a power supply terminal of an integrated circuit element such as a CPU or a ROM on the first layer of the effect control board is omitted. .

  FIG. 8 is a schematic front view of the fourth layer of the effect control board. Components such as a resistor 64a, a capacitor 64b, a transistor 64c, and a diode 64d are mounted on the fourth layer of the effect control board, that is, the back surface of the effect control board 60. FIG. 8 is a view of the effect control board as viewed from the back side. Also in FIG. 8, through holes, wiring patterns, and the like are omitted to simplify the drawing.

  FIG. 9 is a schematic diagram showing the ground connection between the main board and the effect control board of the swivel type gaming machine of the present embodiment. In the present embodiment, the grounds of the liquid crystal control board 72, the LED board 81, the inverter board 82, and the like arranged in the door portion are gathered together in the production relay board 100, and the production control board 60 is connected via a flat cable. Connected to second ground region 62b.

  By the way, the ground part of the integrated circuit elements such as the CPU and the ROM of the effect control board 60 is connected to the first ground area 62a, and the ground from the effect relay board 100 is connected to the second ground area 62b of the effect control board 60. The first ground region 62a and the second ground region are electrically insulated from each other. That is, the effect control board 60 relays the ground from the effect relay board 100, but the ground from the effect relay board 100 is connected to the first ground region 62a that is the ground of the effect control board 60 itself. Absent.

  The first ground area 62a which is the ground of the effect control board 60 itself and the second ground area 62b which relays the ground from the effect relay board 100 are independent of the ground of the main board 10 (third ground). Area). In the main board 10, the ground of the production control board 60 and the earth from the production relay board 100 that are connected independently are collectively grounded at one point by the earth of the main board 10. The main board 10 is also a multilayer wiring board, and a third grounding region is formed in the entire wiring layer of the intermediate wiring layer. Although not shown, the ground of the main board 10 is connected to the ground of the power supply board 20D.

  [Operation of Embodiment] First, the results of a radio wave test in which the present inventor actually radiates radio waves from the front of a gaming machine using a conventional swivel type gaming machine will be described. This is because a so-called “radio wave”, in which the gaming machine is out of control by irradiating electromagnetic waves, which is fraudulent, is performed by irradiating electromagnetic waves from the front of the gaming machine, that is, from the operating unit side of the gaming machine. As a result of the radio wave test, it was found that the main board 10 was strong against external noise, and the boards other than the power board were weak against external noise compared to the main board. In particular, since a stronger noise is applied to the door portion substrate disposed in the door portion near the radio wave generating source than the substrate disposed in the main body portion, the influence on the door portion substrate is great. It was also found that the production control board is easily affected among the boards arranged on the main body side due to noise from the radio wave testing machine.

  Therefore, in this embodiment, the ground of the door part board is connected to the main board via the ground for the door part board of the production control board, but in the production control board, the ground of the board and the ground of the door part board are connected. Are electrically insulated, and the ground of the door portion board and the effect control board 60 are grounded together in the main board 10. In addition, in this embodiment, as shown in FIG. 9, not only a door part board such as a liquid crystal control board, but also a production relay board 100 without a CPU among the boards arranged in the door part is resistant to noise. In order to improve the performance, the same ground wiring as that of the door part substrate such as a liquid crystal control substrate is provided.

  Now, it is assumed that a large noise of a certain value or more is applied from the outside, for example, the ground potential of the liquid crystal control board 72 fluctuates and the liquid crystal control board 72 runs away. Even in such a case, in the present embodiment, the liquid crystal control substrate 72 is provided in the first ground region 62a that is a ground region for an integrated circuit element such as a CPU, a ROM, and a RAM mounted on the effect control substrate 60. Since the earth of the including door part board is not connected in the effect control board 60, the change in the ground potential hardly affects the ground potential of the effect control board 60. This is because, in the effect control board 60, the ground of the effect control board 60 and the ground of the door part substrate including the liquid crystal display board 72 are not electrically connected directly in the effect control board 60. Since the ground of the door part substrate including the liquid crystal control board 72 is connected to the ground of the main board 10, the ground potential of the main board 10 varies due to the fluctuation of the ground potential of the door part substrate including the liquid crystal control board 72. . However, in general, the main board 10 of the spinning-type game machine is resistant to noise, so that the main board 10 rarely malfunctions.

  In this way, even if the ground potential of the liquid crystal display board fluctuates due to external noise, the ground of the board and the ground of the door part board including the liquid crystal display board are electrically connected directly within the stage control board. Therefore, the fluctuation of the ground potential of the door part substrate including the liquid crystal control board hardly affects the ground potential of the effect control board. Therefore, even if the liquid crystal control board runs away due to fluctuations in the ground potential, the effect control board does not run away. Also, in this embodiment, even if the liquid crystal control board runs away, the effect control board controls the liquid crystal control board. Therefore, the runaway of the liquid crystal control board is controlled by the effect control board and is usually normal immediately. It can be returned to the state.

  [Effects of the embodiment] In the conventional swivel-type game machine, the ground of the board and the ground of the door part board such as the liquid crystal control board are connected in the effect control board. When the ground potential fluctuates, the ground potential of the effect control board also fluctuates, and when the liquid crystal control board runs away, the effect control board also runs away. If the production control board runs out of control in this way, the game production control performed by the production control board is performed independently of the main board by the program stored in its own ROM 61a. I can't stop it. On the other hand, in the case of the present embodiment, in the effect control board, the ground of the board and the ground of the door part substrate including the liquid crystal control board are not electrically connected directly in the effect control board. Even if the ground potential of the liquid crystal control board fluctuates due to fluctuations in the ground potential, the ground potential of the effect control board does not fluctuate and the effect control board does not run away. Therefore, according to the swivel type gaming machine of the present embodiment, it is possible to improve the noise resistance performance as compared with the conventional spinning type gaming machine.

  Further, according to the present embodiment described above, even if a player performs an illegal act using a transmitter or the like, it is possible to reliably prevent malfunction due to the illegal act.

  Other Embodiments The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the gist. For example, in the above-described embodiment, the case where the ground of the effect control board is separated from the ground of the door part board has been described, but the ground wiring may be similarly separated in the sub board such as the reel board 20A. Good.

  Further, in the present embodiment, the case where the ground of the board arranged on the door part is connected to the ground of the main board via the effect control board has been described, but the ground of the board arranged on the door part is directly The main board may be connected to the ground.

  In the present embodiment, the ground of each board arranged in the door part is connected to the production control board via the production relay board. However, the ground of each board arranged in the door part is connected to the production relay board. You may make it connect to an effect control board directly, without interposing.

  In the present embodiment, the case where the front portion of the housing is a door portion that can be opened and closed has been described. However, the present invention is not limited to this, and the front portion may not be opened and closed. Good.

  In the above embodiment, the case where the present invention is applied to a revolving game machine using a medal as a game medium has been described. For example, a pachinko machine called a parot machine or a pachinko machine is used as a game medium. You may apply to the slot machine which uses a ball. Furthermore, the present invention may be applied to a pachinko gaming machine.

  As described above, according to the circuit board of the present invention, the ground area of electrical components such as other circuit boards arranged in the housing and the ground area of the integrated circuit element mounted on the circuit board are Since this circuit board is electrically insulated, even if the ground potential of other electrical components such as other circuit boards fluctuates due to the influence of noise such as electromagnetic waves received from the outside of the casing, the ground potential of the circuit board Therefore, the noise resistance performance of the circuit board can be improved. Therefore, the present invention can be applied to a rotating game machine or the like provided with a plurality of circuit boards.

It is a schematic front view of the gaming machine which is one embodiment of the present invention. It is a schematic block diagram of the gaming machine which is one embodiment of the present invention. It is the schematic structure figure which looked at the main part of the turn type game machine of this embodiment from the front. It is the schematic structure figure which looked at the door part of the turn type game machine of this embodiment from the back. It is a schematic front view of the 1st layer of the production control board of this embodiment. It is a schematic front view of the 2nd layer of the presentation control board of this embodiment. It is a schematic front view of the 3rd layer of the production control board of this embodiment. It is a schematic front view of the 4th layer of the production control board of this embodiment. It is the schematic which shows the connection of the earth between the main board | substrate of a spinning cylinder type game machine of this embodiment, an effect control board, etc. FIG. It is the schematic for demonstrating the ground wiring of the conventional spinning cylinder game machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Main body part 3 Door part 10 Main board | substrate 20A Reel board | substrate 20B Operation part relay board | substrate 20C Middle board | substrate 21c Discharge number display part 22c Credit number display part 20D Power supply board 20E Discharge board 31a 1st reel reel 31b 2nd drum Reel 31c Third drum reel 32a First drum reel drive means 32b Second drum reel drive means 32c Third drum reel drive means 33 Display window 34 Medal slot 35 Medal slot 36 Medal tray 41 Slot medal sensor 42 MAX bet button 43 Single-load button 44 Start lever 45a First stop button 45b Second stop button 45c Third stop button 46 Settlement button 47 Door sensor 51 Payout medal sensor 52 Payout motor 60 Production control board 70 Image display section 71 Liquid crystal panel 72 LCD control board 80 Illumination display part 81 LED base 90 speaker unit 61a ROM
61b RAM
61c CPU
61d logic circuit 61e connector 62a first ground region 62b second ground region 63a 3.3 volt region 63b 5 volt region 63c 12 volt region 63d 24 volt region 64a resistor 64b capacitor 64c transistor 64d diode 100 effect relay board

Claims (7)

  In a circuit board configured by mounting an integrated circuit element, the circuit board includes a first ground area connected to a ground portion of the integrated circuit element, and the first ground area is within the circuit board. And a second grounding region that is electrically insulated and connected to a grounding part of an electrical component such as another circuit board disposed in a casing that houses the circuit board. Circuit board.   A gaming machine comprising the circuit board according to claim 1.   3. The gaming machine according to claim 2, wherein the circuit board is used as an effect control board for mainly controlling effect of the game.   A main board for controlling the entire game content, comprising a third grounding area for commonly connecting the first grounding area and the second grounding area of the effect control board. The gaming machine according to claim 3.   5. The gaming machine according to claim 2, wherein the casing has a door portion that can be opened and closed, and electrical components such as the other circuit boards are provided on the door portion.   The gaming machine according to claim 2, 3, 4, or 5, wherein the other circuit board is controlled by the circuit board. A circuit board comprising the circuit board according to claim 1, wherein the circuit board is an effect control board that mainly controls an effect of a game, and the other circuit board is a liquid crystal that controls a liquid crystal panel disposed in the door portion. A swing type game machine including a control board.

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