JP2013240521A - Circuit board, circuit board accommodation structure, game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discriminate breakage and alteration of a circuit pattern including a fraudulent action at any time by maintaining a state enabling the circuit pattern to be followed with eyes and to be recognized even after the circuit pattern is protected by a protective laye.SOLUTION: A circuit pattern is formed on upper and lower surfaces of a circuit board 200, and solder resist layers 216 and 218 are spread over the almost entire surface to be the base. A general solder resist layer has permeability but is colored into green causing degradation in the visibility of the circuit pattern, however, since colorless and transparent solder resist layers 216 and 218 are used, the circuit pattern of a conductive layer 208A can be clearly and visually confirmed even after they are spread similarly to the time before they are spread. Thus, how respective electric components 214 are connected can be confirmed at any time, and breakage and alteration by a fraudulent action can be instantaneously determined.

Description

  The present invention relates to a circuit board provided with an electric circuit pattern forming layer, a circuit board housing structure, a circuit board, or a gaming machine equipped with a circuit board housing structure.

  Conventionally, in gaming machines, such as pachinko machines and pachislot machines, a game specification program predetermined in an integrated circuit (including a microcomputer) mounted on a circuit board is stored and provided in the gaming machine. An image display unit such as an LCD, an electric decoration member such as an LED, and a movable member such as an electric accessory are controlled by the progress of the game based on the game specification program.

  An electrical circuit pattern is formed on the circuit board, and electrical components for controlling the image display unit, the electrical decoration member, the movable member, and the like are electrically connected along the electrical circuit pattern.

  In the circuit board, a conductive layer (for example, a copper film) is deposited on a base plate that is basically a base, and a desired electric circuit pattern is formed by an etching process or the like.

  The conductive layer on which the electric circuit pattern is formed is generally covered with a solder resist layer so that damage to the electric circuit pattern due to impact or the like from the outside is protected.

  Here, a technique for covering the substrate surface of a printed wiring board with a solder resist layer that can be seen through like a semi-transparent film is disclosed (see Patent Documents 1 and 2).

  Moreover, the technique which covers the circuit board which has a LED wiring pattern with the protective layer which consists of transparent resin is disclosed (refer patent document 3).

  In the LED display device of Patent Document 3, a lens portion made of a transparent resin is formed immediately above each of a plurality of LED elements arranged in parallel on the surface of the circuit board, and on the surface of the circuit board. Is formed with a protective layer made of a transparent resin integrated with the lens portion.

  Here, the configuration of the electric circuit pattern on the circuit board can be visually recognized by a person having predetermined electric knowledge. In other words, it is possible to inspect whether there is damage or alteration by following the electrical circuit pattern of the circuit board. It should be noted that the electric circuit pattern can be damaged or altered by either a sudden accident or intentional fraud.

JP 2007-260460 A JP 2007-260461 A Japanese Patent Laid-Open No. 09-102633

  However, when the configuration of the electric circuit pattern on the circuit board is inspected, there is a solder resist layer (protective layer), and the solder resist layer is colored in green, orange, white, etc. In some cases, it is difficult to follow the image with the eye, and the determination of whether there is damage or alteration may be mistaken.

  In Patent Document 1 and Patent Document 2, functional components are printed on the surface of the solder resist layer in order to confirm the correctness of the components attached to the printed wiring board, and the electric circuit pattern is not visible.

  Further, although it is described that the solder resist layer is translucent, there is no mention of whether or not an electric circuit pattern can be confirmed through the solder resist layer.

  Although the protective layer of Patent Document 3 is transparent, its purpose is to serve also as a lens that collects light emitted from the LED element, and a description for visually confirming the LED element and its peripheral circuit pattern. There is no.

  The electric circuit pattern may exist not only on one side but also on both sides of the substrate, and even if Patent Documents 1 to 3 are referred to, there is no description for the purpose of confirming the electric circuit pattern.

  In consideration of the above facts, the present invention maintains a state in which the circuit pattern can be visually recognized even after the circuit pattern is protected by the protective layer, and damage or modification of the circuit pattern including fraudulent acts at any time. It is an object to obtain a circuit board, a circuit board housing structure, and a game machine that can determine whether or not there is a game machine.

  The present invention relates to a conductive layer in which a circuit pattern for propagating an electrical signal based on predetermined electrical operation information is formed, and a nonconductive base formed by laying the conductive layer on the front and back surfaces. And a protective layer that covers the front and back surfaces of the base plate to protect the conductive layer, and the visibility of the circuit pattern of the conductive layer after the coating is maintained at the level of visibility before coating. doing.

  According to the present invention, the conductive layer provided on the front and back surfaces of the base plate is protected by covering the protective layer. Even after coating this protective layer, the visibility of the circuit pattern of the conductive layer is maintained at the visibility before coating.For example, even if the circuit pattern is damaged or altered by fraud, etc. The change can be confirmed.

  The degree of visibility (visibility) is a comprehensive representation of the visibility of a visible image that is governed by factors such as color, contrast, and resolution. The degree of whether or not the object and the meaning of the object can be correctly confirmed / understood. " That is, the visibility is difficult to quantitatively express numerically and depends on the sensitivity. In the present invention, since the difference is the presence or absence of the protective layer, the difference can be sufficiently recognized even in the sensitivity.

  In the present invention, the protective layer is colorless and transparent within a predetermined allowable range.

  If the protective layer is colorless and transparent, the visual field is not blocked by the protective layer.

  The protective layer is provided on the conductive layer on which the circuit pattern is formed on the front and back surfaces of the base plate.

  By covering the portion where the minimum necessary circuit pattern is formed with the protective layer, the circuit pattern can be raised. This is different from the configuration for printing a circuit pattern.

  The present invention relates to a conductive layer in which a circuit pattern for propagating an electrical signal based on predetermined electrical operation information is formed, and a nonconductive base formed by laying the conductive layer on the front and back surfaces. And a protective layer that covers the front and back surfaces of the base plate to protect the conductive layer, and the degree of visibility of the circuit pattern of the conductive layer after the coating is maintained at the level of visibility before coating. A circuit board case that covers the periphery of the circuit board and the circuit board so that the circuit board is closed in an isolated space so that the circuit board cannot be touched, and the closed circuit board is visible from the outside of the space And the circuit pattern is visible through the circuit board case.

  According to the present invention, the conductive layer provided on the front and back surfaces of the base plate is protected by covering the protective layer. Even after coating this protective layer, the visibility of the circuit pattern of the conductive layer is maintained at the visibility before coating.For example, even if the circuit pattern is damaged or altered by fraud, etc. The change can be confirmed.

  In addition, the circuit board case is isolated so that it cannot be touched by the circuit board case, but even if it is over the circuit board case, the circuit board case can see the internal circuit board from the outside, so the degree of visibility of the protective layer Maintenance is effective.

  As described above, according to the present invention, even after the circuit pattern is protected by the protective layer, the circuit pattern is maintained in a state where it can be visually recognized, and any damage or modification of the circuit pattern including fraudulent acts can be performed at any time. It has an excellent effect that the presence / absence can be determined.

It is a front view of the pachinko machine concerning this embodiment. It is a front view of the game board concerning this embodiment. It is a block diagram which shows the hardware constitutions of the control system which concerns on this Embodiment. It is a disassembled perspective view of the circuit board case and circuit board concerning this Embodiment. It is an exploded perspective view of the circuit board concerning this embodiment. It is sectional drawing which shows the layer structure of the circuit board based on this Embodiment.

(Configuration of pachinko machine)
As shown in FIG. 1, a lower decoration 12 serving as a decorative panel is attached to the lower front portion of the pachinko machine 10.

  Further, a glass frame 16 equipped with a pair of glass plates 14 arranged in parallel to each other and at a predetermined interval in the depth direction is arranged on the upper part of the undergarment 12 of the pachinko machine 10. The left end is pivotally supported and attached so that it can be opened and closed. On the back side of the glass frame 16, a detachable / replaceable game board 18 is set, and the game board 18 faces the glass plate 14 while being closed by the glass frame 16.

  An integrated dish 24 is disposed below the glass frame 16. A key hole 27 is provided at the right end of the integrated dish 24 in FIG. 1, and the glass frame 16 is opened when the key is inserted into the key hole 27 and turned to one of the left and right sides, and the integrated dish 24 is opened when turned to the other side. To do.

  The integrated plate 24 is provided with an upper plate portion 28 and a lower plate portion 30. An upper dish ball removal lever 34 is provided on the peripheral wall portion 32 forming the upper dish part 28, and by operating the upper dish ball removal lever 34, the game balls stored in the upper dish part 28 are removed from the lower dish. It can be sent to the section 30. Further, the lower dish portion 30 is provided with a lower dish ball removal button 36. By operating the lower dish ball removal button 36, the game balls PB stored in the lower dish portion 30 are externally (for example, so-called "" It can be discharged into a dollar box ").

  A ball lending button 42 and a return button 44 are provided on the right end portion of the peripheral wall portion 32 of the upper plate portion 28 in FIG.

  A grip unit (launching handle) 26 for adjusting the firing force (flying distance) of the hit ball is attached to the lower right portion of the integrated dish 24, and an ashtray 46 is attached to the lower left portion.

  A saucer speaker 60U is disposed on the right side of the lower dish portion 30 of the integrated dish 24 in FIG.

  Here, an operation button 50 that can be operated by the player is provided on the peripheral wall 32 of the upper plate portion 28 in the integrated plate 24. This operation button 50 can be intervened in the effect image by operating during the operation effective period during the game, and is set according to each game specification.

  Around the glass plate 14 in the glass frame 16, an upper effect section that turns on, turns off, and blinks in accordance with the progress of the game in an arch shape to produce visual effects such as lighting and auditory effects such as sound. 52 is arranged. The lower end portion of the upper effect portion 52 is connected to the upper end portion of the lower effect portion 54 arranged in a substantially U shape around the integrated dish 24.

  As a result, the effect unit 56 is formed by the upper effect unit 52 and the lower effect unit 54 so as to surround the game board 18.

  The effect unit 56 includes a substrate (not shown) to which an illumination member (LED or the like) is attached, and a lens cover formed with a predetermined design so as to cover the substrate. 58 is attached.

  The lens cover 58 is cut into a concavo-convex shape so as to divide an area where the illumination member is lit, and lighting control of the illumination member is performed for each of the divided areas (hereinafter referred to as “lens portion 58” as necessary). Made. The lighting member basically has a set of LEDs that are lit in three colors of R (red), G (green), and B (blue). Although it can be lit, it may be lit in a single color. Alternatively, the lens portion 58 may be colored in advance.

  A triple display 62 is provided at each of the upper corners of the glass frame, and is applied to gaming state notification (including error notification and the like).

  Further, glass frame speakers 60C, 60L and 60R are built in the center and both ends of the area corresponding to about 1/3 of the upper arc of the glass frame 16 in the upper effect section 52, and sound is output simultaneously with illumination. To do.

  Hereinafter, the saucer speaker 60U and the glass frame speakers 60C, 60L, and 60R are collectively referred to as “speaker 60”.

(Game board configuration)
The game board 18 shown in FIG. 2 has a resin sheet-like cell attached to a plywood board serving as a substrate, and the surface of the cell is a board surface. An arc-shaped outer rail is provided near the outer peripheral edge of the board surface. 102 and the inner rail 104 are attached. A transparent acrylic plate or the like may be used instead of the veneer plate. In the circular area surrounded by the outer rail 102 and the inner rail 104, the game ball PB launched and driven from the launching device 165 (see FIG. 3) can be moved by its own weight fall, and this area is a game. This is a gaming area where

  In the game area of the game board 18, nails 19 (partial indices) are scattered and driven, and a windmill 21 is attached. In addition, a center accessory 105 is arranged almost in the center of the game area. The center accessory 105 includes movable accessory devices 105A and 105B that operate mechanically, and a display unit 106 that displays images such as various effects. Although detailed explanation is omitted, the movable accessory devices 105A and 105B are projected to the front of the display unit 106 as an operation for giving a player a sense of expectation of winning based on a result of a special symbol lottery described later. In addition, operation effects such as widening or narrowing the display surface of the display unit 106 are performed. On the other hand, LCD display, LED display, and the like can be applied to the display unit 106, but the display unit 106 is not particularly limited to the display form.

  In the display unit 106, for example, a symbol variation pattern effect for informing the result of the special symbol lottery is executed. As an example, if the symbol pattern of 3 columns is individually changed, and the symbol pattern when 2 of the symbol columns are stopped changing, the symbol becomes the same symbol. When the final row stops and becomes the same symbol as the already stopped two rows of symbols, the winning is notified, and when it becomes a different symbol, a loss is notified.

  A stage 105 </ b> S is formed at the lower side of the center accessory 105. A game ball PB received by rebounding with a nail or the like, or a game ball PB received guided by a warp path (not shown) is sent to the stage 105S.

  The stage 105S is formed with an inclined surface, a protrusion, etc., and the movement of the game ball PB changes irregularly by the inclined surface, the protrusion, etc., and finally returns to the game board 18 from the lower side. ing.

  As shown in FIG. 2, a special symbol start winning opening (A) 130 is arranged at the lower part of the center accessory 105. The special symbol start winning opening (A) 130 is open at the top so that it can always win.

  Further, at the lowest position of the game area of the game board 18, there is provided an out port 124 through which the dislodged ball is discharged to the back side of the game board 18.

  On the other hand, as shown in FIG. 2, a passing gate 118 having a normal symbol lottery starting function is arranged on the right side of the center accessory 105 in FIG.

  A special symbol start winning opening (B) 134 is disposed below the passing gate 118. The upper opening of the special symbol start winning opening (B) 134 is normally closed by the nail 19.

  An electric tulip 136 is attached to the special symbol start winning opening (B) 134. The electric tulip 136 is configured to open and close by energization / non-energization of an electric chew solenoid 138 (see FIG. 3) disposed on the back side of the game board 18.

  The electric tulip 136 is opened when the normal symbol lottery is won. When the electric tulip 136 is in the open state, the pachinko ball PB can be received in the winning opening of the special symbol start winning opening (B) 134, and the pachinko ball PB can be won.

  At the lower part of the special symbol start winning opening (B) 134, an attacker 112 dedicated to the jackpot for the special symbol lottery is arranged near the lower end of the game area.

  The attacker 112 is provided with an opening / closing door 116. The opening / closing door 116 is opened or closed by energization / non-energization of the attacker solenoid 148 (see FIG. 3). That is, when the open / close door 116 is opened, the game ball PB dropped on the open / close door 116 is guided by the open / close door 116 and wins the attacker 112.

  Here, when the game ball PB wins the special symbol start winning opening (A) 130 or the special symbol start winning opening (B) 134, the special symbol lottery is executed.

  In the special symbol lottery, when the “big hit” is won, the opening / closing door 116 of the attacker 112 is opened and closed in a predetermined pattern, and this is repeated a predetermined number of times (a predetermined round) (“special game”, “main character processing”). Etc.)).

  Note that the winning (“big hit”), which is the lottery result of the special symbol lottery, is mainly notified in the symbol variation display effect of the display unit 106, and in the case of the symbol variation display effect or during the major role processing, the lottery is performed. The notification of the result is on standby (holding / storing), and the notification is made sequentially. In addition to the symbol variation display effect, a character such as an anthropomorphic animal is displayed, and a visual effect is given to give the player a sense of expectation by implying that they have won the special symbol lottery. In this case, the player's interest is increased by sound effects.

  For example, while the normal time is a game in which the player hits the left side toward the center actor 105 (so-called “left-handed state”), the center actor 105 is directed toward the attacker 112 during the major player process. The game is changed to a game (so-called “right-handed state”) in which the player hits the right side of the game.

  In addition, when the game ball PB passes through the passing gate 118 in a specific gaming state (for example, “right-handed state” for a certain period after the big role processing), a normal symbol lottery is executed, and when the normal symbol lottery is won, The electric tulip 136 is opened. In the specific gaming state, since the electric tulip is opened for a long period of time, the probability of winning the special symbol start winning opening (B) 134 increases as compared to gaming states other than the specific gaming state.

  In the present embodiment, the specific game state is “short-time game state with electric tulip 136 support” (sometimes referred to as “short-time with electric support”, “short-time with electric support”, etc.), and with non-electric support. The time base is set to 20 while the time base with power support is set to 100. The base is the ratio of the number of prize balls paid out relative to the number of shot balls. For example, when 100 game balls PB are fired and there are 20 prize balls paid out, the base 20 is called. The time when there is a ball payout is called the base 100.

  The game board 18 has a plurality of general prize openings 120 (in the present embodiment) on the left side of the special symbol start winning opening (A) 130 (lower left of the game board 18) below the center role 105. The accessory device 107 provided with the two general winning openings 120A and 120B) is disposed. The number of the general winning openings 120 is not limited to two. For example, the number may be determined by a design calculation such as a basic base and a winning rate.

  In the present embodiment, a maximum of four per special symbol start winning opening (in this embodiment, two of special symbol start winning opening (A) 130 and special symbol start winning opening (B) 134 are shown. Since it is a special symbol start winning slot, the number is 8). Reservation (memory for starting winning of game ball) is possible. The number of reserved balls is not limited.

  The number of reserved balls is mainly determined by a special symbol memory display unit which is a part of the game progress guide lamp unit 109 having a special symbol display unit (located at the lower right when the center accessory 105 shown in FIG. 2 is viewed from the front). Informed.

In addition, an electrical decoration device 122 is disposed on the surface of the game board 18 between the center accessory 105 and the accessory device 107 so as to be embedded on the back side of the surface. It can be seen that there is a portion into which the nail 19 is driven on the front surface of the electric decoration device 122, and it is on a flow path through which the game ball PB can pass. For this reason, the player can visually recognize the effect state of the electrical decoration device 122 without shifting the line of sight of the trend of the game ball PB.
(Control system configuration)
Next, the control system of the pachinko machine 10 will be described with reference to FIG.

  As shown in FIG. 3, the control system of the pachinko machine 10 according to the present embodiment is configured around a main control unit 150, and the main control unit 150 includes an effect control unit 152 and a payout control unit 154. And are connected. The main control unit 150 stores a basic program relating to games, and the operation of each unit is controlled based on a command signal from the main control unit 150.

  Information indicating the progress of the game (start winning signal, jackpot signal, symbol determination number signal, etc.) is transmitted from the main control unit 150 to the hall computer (not shown) via the board external terminal 190.

  The main control unit 150 includes, as an input system, a pass gate sensor 118S that detects a game ball PB passing through the pass gate 118, and a special figure A start port sensor that detects a winning ball to the special symbol start winning port (A) 130. 130S, special figure B start opening sensor 134S for detecting a winning ball to the special symbol starting winning opening (B) 134, an attacker sensor 112S for detecting a winning ball to the attacker 112 that is released in the case of "big hit", a general winning opening General winning sensors 120AS and 120BS for detecting winning balls to 120A and 120B are connected.

  In addition, the main control unit 150 has an output system that opens and closes a guide lamp unit 109 for notifying game information and a game state by lighting a lamp, an electric chew solenoid 138 for opening and closing the electric tulip 136, and an opening and closing door 116 for the attacker 112. An attacker solenoid 148 is connected for the purpose.

  The operation control unit 50 is connected to the effect control unit 152 as an input system. In addition, the effect control unit 152 includes, as an output system, an LED chip 122A of the illumination device 122, a light source 137 for lighting effects provided in various game parts of the pachinko machine 10, and a speaker 60 (60L, 60C, 60R). , 60U) are connected.

  Furthermore, the display unit 106 is connected to the effect control unit 152 via the symbol control unit 156.

  The payout control unit 154 is connected to a payout device 160 and a launch control unit 164, and the launch control unit 164 is connected to a launch device 165. The payout control unit 154 operates the payout device 160 provided in the pachinko machine 10 to control the payout and lending ball payout and stop operations and the number of payouts. In addition, the launch control unit 164 activates the launch device 165 by the operation of the grip unit 26 (see FIG. 1) by the player to start launch of the game ball PB and the launch force according to the operation amount of the grip unit 26. To control.

  Further, the payout control unit 154 transmits payout information to a hall computer (not shown) installed in the hall via the frame external terminal 191.

(Structure of circuit board)
Here, in the block diagram of the control system shown in FIG. 3, for example, the main control unit 150, the production control unit 152, the payout control unit 154, etc. are mounted with various electrical components on independent control boards, respectively. It is supposed to perform the function.

  For example, as shown in FIG. 4, in the main control unit 150, the circuit board 200 is covered and protected by the circuit board case 202. Similarly, other control boards such as the sub-control part 152 and the payout control part 154 are covered with the respective circuit board cases. Note that the circuit boards are structurally the same as the main controller 150, although the electrical operation functions of other circuit boards such as the sub controller 152 and the payout controller 154 are different. Therefore, hereinafter, the circuit board 200 of the main control unit 150 will be described as an example.

  As shown in FIG. 4, the circuit board case 202 includes a base member 204 on which the circuit board 200 is placed and fixed, and a cover member 206 that closes the circuit board 200 together with the base member 204 with a predetermined space above it. And.

  At least the cover member 206 has transparency, and the circuit board 200 can be seen from the outside even after the cover member 206 is attached.

  Once the cover member 206 is attached to the base member 204, a certain trace remains when removed. For this reason, even if there is an improper act (replacement of electrical parts, tampering with a circuit, etc.) for the circuit board 200, the fraudulent act can be quickly recognized by the presence or absence of the trace. Yes.

  By the way, in this embodiment, apart from the viewpoint of protecting the circuit board 200 by the circuit board case 202, countermeasures against fraud are taken as a single circuit board 200.

  FIG. 5 is an exploded perspective view of the circuit board 200 of the present embodiment.

  As shown in FIG. 5, a plurality of electrical components 214 such as an integrated circuit (IC chip or transistor), a resistor, and a capacitor are attached to the upper surface of the circuit board 200 according to predetermined electrical operation information (design circuit diagram). Yes.

  In the circuit board 200, a conductive layer 208A such as a copper film is laid by vapor deposition or the like on the upper surface of the base plate 208 of a non-conductive member such as a carbon material, and a circuit pattern is formed by etching or the like. . Also, a conductive layer 208B is deposited on the lower surface of the base plate 208, and a circuit pattern is formed by an etching process or the like.

  Further, the front and back surfaces of the base plate 208 (the conductive layers 208A and 208B) are covered with solder resist layers 216 and 218 except for a portion to which terminals of electrical components are connected after the circuit pattern is formed.

  By the solder resist layers 216 and 218, the formed circuit pattern is protected from being damaged by an impact or the like from the outside or causing an electrical failure such as a short circuit.

  Here, a colorless transparent material is applied to the solder resist layers 216 and 218 of the present embodiment.

  A general solder resist layer (a general solder resist layer is not shown) has transparency, but is colored green or the like. For this reason, when the circuit pattern is coated with the general solder resist layer, the visibility of the circuit pattern is lower than before the coating.

  Since the purpose of the general solder resist layer is to protect the circuit pattern as described above, the coating itself can be confirmed by this green coloring.

  On the other hand, in the present embodiment, the circuit pattern may be damaged or altered by intentional fraud, not by a sudden accident.

  Sufficient monitoring is always necessary for such fraud. Therefore, in the present embodiment, the visibility of the circuit pattern on the front and back surfaces of the base plate 208 is applied even after the colorless and transparent material is applied as the solder resist layers 216 and 218 and the solder resist layers 216 and 216 are covered. Is maintained.

  For the solder resist layers 216 and 218 applied in the present embodiment, model number SPSR-900G C-3AT manufactured by Sanwa Chemical Industry Co., Ltd. can be applied.

  Hereinafter, although a part of the description is duplicated, the layer structure of the circuit board 200 will be described in detail with reference to FIG. As shown in FIG. 6, in the circuit board 200, the conductive layers 208A and 208B described above are deposited on the upper and lower layers around the base plate 208 formed of a core material reinforced with a carbon plate as a non-conductive layer, On the basis of predetermined circuit design information (circuit diagram), a circuit pattern is formed in a linear manner. The linear sections of the conductive layers 208A and 208B can be realized, for example, by dissolving unnecessary portions by etching or the like for the conductive layers 208A and 208B on the entire surface.

  An electrical component 214 is attached to the upper surface of the circuit board 200. In FIG. 5, a part of the electric component 214 is denoted by a reference numeral.

  As shown in FIG. 6, the electrical component 214 includes a plurality of terminals 214 and 214 </ b> B, and is inserted through a through hole 200 </ b> A provided in the circuit board 200. The through-hole 200A is provided from the upper surface to the lower surface in FIG. 6, and the inserted terminals 214A and 214B reach the lower surface.

  The conductive layers 208A and 208B on the upper and lower surfaces of the base plate 208 are coated with solder resist layers 216 and 218 on the entire surface except the peripheral edge of the through hole 200A to protect the circuit pattern.

  In the circuit board 200 configured as described above, when the terminals 214A and 214B of the electrical component 214 are inserted into the through-hole 200A, a meltable conductive material, for example, a solder 220 heated and melted at a predetermined temperature, is then obtained. By being injected, it is electrically connected to the target conductive layers 208A and 208B (circuit pattern), and the electric component 214 itself is fixed to the circuit board 200.

  The operation of this embodiment will be described below.

  In the game using the pachinko machine 10, when the player operates the grip unit 26, the ball is shot upward by the launching device 165 one by one. The launched game ball PB is driven into the game area of the game board 18 along the outer rail 102 and falls in the game area while changing the direction by hitting a game nail or a windmill. Then, the game ball PB reaching the lower end of the game area without winning a prize is collected into the pachinko machine 10 from the out port 124.

(Game specifications according to this embodiment)
In the present embodiment, the so-called “left-handed” game is the basic (basic game). That is, the special symbol start winning opening (A) is adjusted while abutting against an obstacle such as a windmill or a nail by adjusting the firing strength of the game ball PB so as to pass through the left side of the game board 18 with the display unit 106 as a boundary. The game ball is guided to 130, and when winning, a special symbol lottery is executed.

  In the special symbol lottery, the player is notified of the lottery result by the symbol variation pattern effect executed on the display unit 106. The symbol variation pattern effect is executed by selecting a symbol variation pattern type from the symbol variation pattern selection table based on an instruction signal from the main control unit 150 or the like.

  When the special symbol lottery is won, the open / close door 116 of the attacker 112 is opened for a predetermined time and a predetermined number of times, and a big game process is executed to dramatically increase the winning of the game ball from the normal gaming state.

  Apart from the basic game, the big game process is a so-called “right-handed” game.

  That is, by adjusting the firing strength of the game ball PB so that it passes through the right side of the game board 18 with the display unit 106 as a boundary, the game ball is guided to the attacker 112 while contacting an obstacle such as a windmill or a nail. Go.

  Next, when the big character process is completed, there are a case where the left-handing is returned and a case where the right-handing is continued. When the right hand is continued, the game ball is guided to the special symbol start winning opening (B) 134. At this time, it is in a short-time state, and when the game ball PB passes the passing gate 118, the normal symbol lottery is executed in the short-time state. The special symbol start winning opening (B) 134 can be won. When the game ball PB wins the special symbol start winning opening (B) 134, the special symbol lottery is executed in the same manner as the special symbol start winning opening (A) 130.

  Here, the program for executing the game specifications is stored in a storage unit (for example, ROM) of the main control unit 150, and the program is executed. Further, the main control unit 150 executes the operation of the electric chew solenoid 138, the operation of the attacker solenoid 148, and the lighting control of the guide lamp unit.

  Further, the effect control unit 152 includes display control of the display unit 106 through the symbol control unit 156, and an effect through hearing and vision is executed. The payout control unit 154 executes payout control of the game ball PB.

  Including the main control unit 150, the production control unit 152, and the payout control unit 154, the gaming machine 10 is provided with a circuit board independently for each of the plurality of control units, and the necessary electrical components (IC chip, transistor) , Resistors, capacitors, etc.) are attached. The electric component is supplied with electric power from the circuit board, and a signal is propagated along a specific circuit pattern.

  Here, taking the circuit board 200 of the main controller 150 as an example, the circuit board 200 is placed on the base member 204 of the circuit board case 202, and the cover member 206 of the circuit board case 202 is covered from above. Blocked.

  Since the circuit board 200 closed by the circuit board case 202 cannot be directly touched, illegal actions such as ROM replacement can be avoided. In addition, since the trace of the circuit board case 202 remains every time it is opened and closed, it can be visually determined that at least the circuit board case 202 has been opened. Is possible.

  On the other hand, in the present embodiment, apart from the viewpoint of preventing fraud by the circuit board case 202, the circuit pattern formed on the circuit board 200 is converted into white, yellow, orange, red, yellow green, green, By covering with the colorless solder resist layers 216 and 218 without blocking with the solder resist layers colored with blue, black, etc., the same visibility as before the solder resist layers 216 and 218 are laid is maintained.

  More specifically, in this embodiment, the solder resist layers 216 and 218 are colorless and transparent. As a product applied to this condition, Sanwa Chemical Industry Co., Ltd. model number SPSR-900G C-3AT or the like is applicable.

  As shown in FIG. 5, a circuit pattern is formed on the upper and lower surfaces of the circuit board 200 (the electrical component 214 is also attached to the upper surface). Solder resist layers 216 and 218 are laid on substantially the entire surface (the front and back surfaces of the base plate 208) as a base. A general solder resist layer has transparency but is colored green, so that the visibility of the circuit pattern has been lowered. On the other hand, in this embodiment, since the solder resist layers 216 and 218 are colorless and transparent, the circuit pattern of the conductive layer 208A can be visually confirmed after laying as well as before laying.

  For this reason, it is possible to check how each electrical component 214 is connected at any time, and if there is any damage or modification due to misconduct, including sudden damage, there is immediate damage or modification. Can be determined.

  Here, in the present embodiment, the circuit board 200 is housed in the circuit board case 202, and the housing space is closed from the outside. For this reason, the confirmation of the circuit pattern of the circuit board 200 is performed from the outside of the circuit board case 202. Here, since the circuit board case 202 is also a highly transparent member (transmittance of about 90% to 100%), and the solder sujit layers 216 and 218 are also colorless and transparent, the circuit board 200 can be used to check whether or not the circuit pattern has been tampered with. Confirmation from the outside of the substrate case 202 can be easily performed.

  As described above, in this embodiment, even if an illegal act of altering a part of the circuit board 200 (replacement of ROM, change of circuit pattern, etc.) is performed, the circuit pattern is easy to see. Can be found quickly.

  Furthermore, in another aspect, since the circuit board 200 is closed by the circuit board case 202, the circuit pattern of the circuit board 200 is confirmed from the outside of the circuit board 202, so the circuit board case 202 and the solder resist layer 216 (218). However, since the solder resist layers 216 and 218 are colorless and transparent, confirmation is possible without any sense of incongruity.

  In this embodiment, the solder resist layers 216 and 218 are colorless and transparent. However, for example, the solder resist layers 216 and 218 are not provided on the entire front and back surfaces of the base plate 208, but along the circuit pattern. You may make it provide (henceforth "a modification"). In this case, the solder resist layers 216 and 218 have a circuit pattern. According to this configuration, it can be said that the same visibility is maintained before and after the circuit pattern is covered with the solder resist layers 216 and 218. In this modification, the solder resist layers 216 and 218 may be colored and opaque.

  In the present embodiment, the circuit board 200 according to the present embodiment is applied as the circuit board of the main control unit 150. However, the effect control unit 152, the payout control unit 154, the symbol display control unit 156, and the like are included. It is also possible to apply to the circuit board of the sub-control system.

  Furthermore, the game specifications shown in this embodiment are merely examples, and the circuit pattern and / or the non-circuit pattern may be different depending on the game specifications to be applied. On the other hand, the game specification program controlled by the main control unit 150 is common, and in the sub-control system including the effect control unit 152 and the payout control unit 154, the game specification may be changed.

  In the present embodiment, the base plate 208 has a single-layer structure. However, a multilayer circuit board may be formed by stacking two or more base plates having a conductive layer on one or both sides.

10 Pachinko machines (game machines)
18 Game board 105 Center character 106 Display section 112 Attacker 112S Attacker sensor 130 Special symbol start winning opening (A)
130S Special Figure A Start Port Sensor 138 Electric Chu Solenoid 148 Attacker Solenoid 150 Main Control Unit 152 Production Control Unit 154 Discharge Control Unit 200 Circuit Board (Multilayer Structure Circuit Board)
202 Circuit board case 204 Base member 206 Cover member 208 Base plate (board body)
208A, 208B Conductive layer 214 Electrical component 214, 214B Terminal 216 Solder resist layer (protective layer)
218 Solder resist layer (protective layer)
220 Solder (conductive material)

Claims (6)

A conductive layer formed with a circuit pattern for propagating an electrical signal based on predetermined electrical operation information;
A non-conductive base plate formed by laying the conductive layer on the front and back surfaces;
Protecting the conductive layer by covering the front and back surfaces of the base plate, and the degree of visibility of the circuit pattern of the conductive layer after the coating is maintained at the degree of visibility before coating,
A circuit board.   The circuit board according to claim 1, wherein the protective layer is colorless and transparent under a predetermined tolerance.   The circuit board according to claim 1, wherein the protective layer is provided on a conductive layer on the front and back surfaces of the base plate on which the circuit pattern is formed. A conductive layer formed with a circuit pattern for propagating an electrical signal based on predetermined electrical operation information; a non-conductive base plate formed by laying the conductive layer on the front and back surfaces; and A circuit board comprising: a protective layer that covers the front and back surfaces of the base plate to protect the conductive layer, and the visibility of the circuit pattern of the conductive layer after the coating is maintained at the visibility before coating;
The circuit board has a circuit board case that covers the periphery of the circuit board so that the circuit board is closed in an isolated space so that the circuit board cannot be touched, and the closed circuit board is visible from the outside of the space. And
The circuit board housing structure, wherein the circuit pattern is visible through the circuit board case.   A gaming machine comprising the circuit board according to any one of claims 1 to 3.   A gaming machine comprising the circuit board structure according to claim 4.