JP2008173341A - Mahjong ball game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent electromagnetic wave and static electricity from the outside of a main body case from affecting a liquid crystal panel unit or an image control board in the case of unitizing the liquid crystal panel unit, an inverter and the image control board by using the main body case formed of a synthetic resin as a base material. <P>SOLUTION: In a performance control liquid crystal display device 14, the liquid crystal panel unit 401, the inverter 402 and the image control board 403 are unitized by using the main body case 404 formed of the synthetic resin as the base material. Also, the main body case 404 does not transmit the electromagnetic waves since plating treatment by a conductive metal film is executed to the entire outer surface, and the electromagnetic wave and the static electricity from the outside of the main body case 404 are prevented from affecting the liquid crystal panel unit 401 or the image control board 403. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sparrow ball game machine that displays an image on a screen of a liquid crystal panel unit.

  2. Description of the Related Art Conventionally, there is known a sparrow ball game machine that establishes a mahjong rising role based on a combination of symbols obtained by dropping a game ball launched on a game board surface into one of the entrances. A general sparrow ball game machine has a game board having a plurality of entrances with a mahjong tile design, a medal insertion part for inserting game medals necessary for the game, and a lever operation in conjunction with the lever operation. A ball launcher that launches game balls onto the surface of the game board, a display device for displaying the design of the hand, a control panel with a discard button for discarding, etc. A medal payout device for paying out a predetermined number of game medals, and a control device for controlling the overall progress of the game.

  That is, in the sparrow ball game machine, when the player inserts a predetermined number of game medals from the medal insertion unit and gives an instruction to start the game, the control device draws, for example, 14 mahjong tiles as a first move (automatic determination) And display the symbols (Mahjong tiles) on the display device. When the discard button is pressed, the control device performs a process of cutting off the corresponding mahjong tile from the hand. As a result, the player performs a discarding operation for throwing away the mahjong tile determined to be unnecessary while looking at the displayed symbol. In addition, the player operates the ball launching device to perform a self-sufficient operation by launching one game ball onto the game board surface. That is, when a game ball launched on the game board surface falls into one of the entrances, a mahjong tile with a pattern corresponding to the entrance is added to the hand. The player repeats the above-mentioned discarding and self-determination operations using, for example, 11 game balls given at the start of the game, and plays any mahjong role (raising role) set in advance before all the game balls are used up. By completing the game, a number of game medals corresponding to the winning combination can be obtained (see, for example, Patent Document 1).

  Such a conventional sparrow ball game machine uses a liquid crystal panel unit as a display device for displaying a design of a hand tile. The liquid crystal panel unit is unitized by a main body case together with an inverter that supplies power to the backlight and an image control board that supplies liquid crystal drive signals to the liquid crystal panel unit. And as such a main body case, what formed the synthetic resin as a base material from a viewpoint of weight reduction and mass-productivity is generally prevailing.

Japanese Patent Laid-Open No. 2005-080845

  However, in a liquid crystal panel unit used in a conventional sparrow ball game machine, when a liquid crystal panel unit, an inverter, and an image control board are integrated in a main body case formed of a synthetic resin as a base material, Static electricity affects the liquid crystal panel unit and image control board, and noise radio waves emitted from the inverter affect circuits outside the case, resulting in deterioration of the image displayed on the liquid crystal panel unit. There were problems such as noise in the sound.

  The present invention has been made in view of such conventional problems, and in the case where a liquid crystal panel unit, an inverter, and an image control board are unitized using a main body case formed of a synthetic resin as a base material, the main body case A sparrow ball game machine that prevents electromagnetic waves and static electricity from outside the LCD panel unit and image control board from being affected, as well as preventing noise waves emitted from the inverter from affecting the circuits outside the case. It is intended to provide.

  In order to solve the above-described problem, the invention described in claim 1 is a sparrow ball game machine including a liquid crystal display device together with a game board and a game operation unit on a front surface, and the liquid crystal display device includes a liquid crystal panel and A liquid crystal panel unit having a display screen overlaid with a backlight, an inverter for supplying desired power to the backlight, an image control board for supplying a liquid crystal drive signal to the liquid crystal panel, and a display screen for the liquid crystal panel A main body case that houses the inverter and the image control board together with the liquid crystal panel unit in a state of being exposed to the outside, and the main body case is made of a synthetic resin as a base material and has a conductive metal film The plating process is performed on the entire outer surface.

  According to a second aspect of the present invention, in the sparrow ball game machine according to the first aspect, the liquid crystal display device has a main body frame of the sparrow ball game machine via at least a pair of attachment portions formed on the main body case. Further, the main body case is electrically connected to the ground potential of the main body frame through any one of the mounting portions, and is electrically connected to at least one other mounting portion. It is characterized by being insulated.

  According to the sparrow ball game machine according to claim 1, the liquid crystal panel unit, the inverter, and the image control board can be unitized using the main body case formed of a synthetic resin as a base material. It is made of resin as a base material, and the entire outer surface is plated with a conductive metal coating, making it difficult for electromagnetic waves to pass through. In addition to preventing the substrate from being affected, noise radio waves emitted from the inverter can be prevented from affecting the circuit outside the case at a low cost.

  According to the sparrow ball game machine of the second aspect, the main body case of the liquid crystal display device is electrically insulated from the main body frame by at least one mounting portion. For this reason, an electric loop circuit is not formed including the main body frame of the sparrow ball game machine and the main body case of the liquid crystal display device. As a result, the inductance of the electromagnetic shield circuit can be reduced, and therefore, secondary radio wave interference induced by electromagnetic waves from the outside of the main body case and noise radio waves leaking from the inside of the liquid crystal display device can be suppressed as much as possible. .

  As described above, according to the sparrow ball game machine of the present invention, when the liquid crystal panel unit, the inverter, and the image control board are unitized using the main body case formed of a synthetic resin as a base material, As well as preventing external electromagnetic waves and static electricity from affecting the LCD panel unit and the image control board, it is possible to prevent noise waves emitted from the inverter from affecting the circuit outside the case. It is possible to improve the image quality of displayed images and to improve the performance of other rendering means.

  Hereinafter, a preferred embodiment of a sparrow ball game machine according to the present invention will be described using a sparrow ball game machine as an example. Here, FIG. 1 is a front view of a sparrow ball game machine 10 according to one embodiment of the present invention, and FIG. 2 is a side view thereof.

  First, the external structure of the sparrow ball game machine 10 will be described with reference to FIGS.

  The sparrow ball game machine 10 shown in FIG. 1 can open and close the front frame 11 via a hinge shaft support 12 with respect to a substantially box-shaped housing 30 (see FIG. 2) mainly formed of a synthetic wood board. Is pivotally supported.

  The front surface of the front frame 11 has a glass frame portion 13 that faces the game board surface 20 through a transparent plate (pair glass) fitted so as to close the opening portion 13a, and a design such as a manual or a throwing ball or a sparrow ball game. The first effect control liquid crystal display device 14 for displaying other information necessary for the operation and the panel unit 15 for arranging various operation switches are formed to be connected vertically.

  As shown in FIG. 2, the front frame 11 includes a glass frame member 60 in which the glass frame portion 13 and the panel portion 15 are integrated, and an intermediate frame member that supports the glass frame member 60 so that the glass frame member 60 can be opened and closed behind it. 70 and two door members. Usually, the middle frame member 70 is locked in a state in which the housing 30 is closed, and the glass frame member 60 is also closed and locked on the middle frame member 70 side.

  Further, in FIG. 1, a key hole 18 for unlocking a middle frame member 70 (see FIG. 2) and a glass frame member 60 (see FIG. 2) by inserting a predetermined key is provided at the right end of the front frame 11. Is provided.

  The glass frame portion 13 is provided with effect lamps 16a and 16b that are three-dimensionally decorated so as to surround the opening 13a. A second effect control liquid crystal display device 21 is arranged together with a decorative portion 22 for decorating the periphery of the game board surface 20 viewed through the glass frame portion 13 at a substantially central portion. The second effect control liquid crystal display device 21 displays, for example, in advance a symbol of an unnecessary bag that should be thrown away from the hand when the player performs a throwing operation, or should be self-playing when performing a self-playing operation. It is mainly used as a display device for game assist navigation that allows beginners to enjoy the sparrow ball game by displaying the symbols.

  At the uppermost portion of the game board surface 20, a 7-segment LED (light emitting diode) and a dot lamp device 23 in which a plurality of LED elements are arranged in a matrix are arranged. The dot lamp device 23 displays various states of the sparrow ball game machine 10 with predetermined LED lighting patterns.

  Two entrances 25 a and 25 b and a special entrance (hereinafter referred to as “attacker”) 24 are arranged above the effect control liquid crystal display device 21. The left entrance 25a is associated with, for example, “Ikko” of a mahjong tile (hereinafter referred to as “牌”), and the right entrance 25b is associated with “Jukuri”.

  On the right side of the attacker 24, a passage opening (hereinafter referred to as “gate”) 26 is disposed, and wind turbines 27 are disposed on the left and right of the decorative portion 22. Further, at the lowermost portion of the game board surface 20, an entrance slot array 28 having a plurality of entrances is disposed.

  For example, 25 entrances are formed in the entrance row 28, and although not shown, “east”, “south”, “first base” to “nine bases” from the left end. The symbols of each kite are associated in order, and “white”, “發”, “middle”, and “one cylinder” to “nine cylinders”, “west”, and “north” symbols correspond to the center in the center. It is attached. In a sparrow ball game, when a game ball falls into any of the entrances, the process proceeds as if the symbol of the symbol associated with the entrance is self-repressed.

  A ball launching passage 29 is formed by a part of the left inner wall (outer rail) that delineates the game board surface 20 in a substantially semicircular shape and a belt-like rail member (inner rail) 29a provided substantially in parallel therewith. Yes. Although not shown, a large number of nails corresponding to a predetermined gauge setting are placed on the game board surface 20. In other words, the game ball launched by the ball launcher 740 is guided to the game area of the game board surface 20 via the ball launch passage 29, colliding with a plurality of gauges (nails) and accidentally changing the direction of dropping. It falls into one of the entrances.

  The panel portion 15 formed substantially in the middle of the front frame 11 has a generally upper chordal shape when viewed from the front, protrudes forward from the glass frame portion 13, and is a substantially flat upper surface 15 a inclined downward. And a lower surface 15b that is rounded from the front edge of the upper surface 15a and is inclined downward. In the approximate center of the upper surface 15a, the above-described first effect control liquid crystal display device 14 having a rectangular horizontally long display surface is arranged.

  Further, on the left side of the upper surface 15a, a medal insertion unit 40 in which a slit for inserting a game medal necessary for playing a game (hereinafter referred to as "medal") is formed, and a medal clogged inside. A medal return button 41 is provided for forcibly removing. Further, a BET (game start) button 43 including a push button switch is disposed adjacent to the medal insertion unit 40.

  In addition, for example, 14 discard buttons 42 each including a press switch having the same specification are arranged at a position close to the lower end of the effect control liquid crystal display device 14 on the upper surface 15a of the panel unit 15. Each discard button 42 corresponds to each of the 13 manuals displayed on the effect control liquid crystal display device 14 and one self-contained game, and the player arbitrarily selects any of the discard buttons 42. By pressing, it is possible to perform a discarding operation to cut off the corresponding ridges.

  In addition, a reach button 44, left and right shift buttons 45a and 45b, a selection determination button 46, and the like are all disposed as push-type key switches on the right side of the upper surface 15a. Further, on the lower surface 15b of the panel unit 15, effect lamps 17a and 17b are provided at both left and right ends, respectively.

  An integrated dish panel 19 is formed at the bottom of the front frame 11. The integrated dish panel 19 includes a medal tray 51, a medal outlet 52 having a downward opening for discharging the medal to the tray 51, and sound emission ports 53a and 53b in which speakers are arranged. Each is formed at a predetermined position. In addition, a ball launch lever 81 for performing a turning operation for launching a game ball onto the game board surface 20 is provided at the right end of the integrated dish panel 19.

  The progress and control of the game in the sparrow ball game machine 10 is generally performed as follows by a main control board (described later) built in the housing 30 performing arithmetic processing according to a predetermined program.

  First, when a player inserts a predetermined number (for example, three) of medals into the medal insertion unit 40 and presses the BET button 43, the main control board has 14 cards as a hand at the start of the game. Are determined by an internal lottery using random number generating means. Then, the 14 automatically arranged wrinkle symbols are displayed on the effect control liquid crystal display device 14, and the code data of the arranged symbols are stored in the memory.

  The main control board refers to the code data of this game (hand game), and unnecessary masonry that cannot complete any mahjong role (raising role) or the difficulty level selected by the player at the start of the game ( The bags to be discarded are selected in accordance with the criteria of whether to aim for big roles or small roles, and display (navigate) those symbols on the effect control liquid crystal display device 21. With reference to the displayed symbols, the player presses the discard button 42 corresponding to a single basket determined to be unnecessary by himself / herself and performs the discard operation. At this time, the main control board updates the code data of the hand in accordance with the discarding operation, and causes the effect control liquid crystal display device 14 to display the thirteen hands. Then, the main control board supplies one game ball to the ball launcher 740 and prepares for ball launch (launch).

  At the same time, the main control board calculates a rising combination that may be established from the 13 hands, and selects a target rising combination based on the set difficulty level. Then, a bag that is not included in the rising hand is selected as a bag to be self-recognized, and the design is displayed on the effect control liquid crystal display device 21 for guidance.

  Next, the player operates the ball launch lever 81 to launch a single game ball onto the game board surface 20, thereby performing a self-control operation to drop the game ball into any of the entrances 25a, 25b, and 28. Then, the main control board adds the bag corresponding to the entrance that detected the falling of the game ball as a bag (self-locking). In other words, the code data of the self-contained heel is added to the code data of the hand before the self-operation and updated, and the design of the self-contained heel is displayed on the effect control liquid crystal display device 14.

  At this time, the main control board performs a process of determining whether or not the combination of 14 hand-stamped symbols by this self-operation has completed a preset up (completion) combination. If the hand tile has not completed any rising combination, the main control board selects the bag to be discarded in the same manner as the above-described processing, and displays the symbol on the effect control liquid crystal display device 21 as a guide. Then, the player again performs a discarding operation for throwing away unnecessary bags from the hand.

  The player repeats such discarding and self-repetition operation using, for example, 11 game balls given to one game, and before using up all the game balls, the player can perform any one of the rising roles. When the combination is completed, a predetermined number of medals are paid out from the medal exit 52 to the tray 51 for each rising combination.

  On the other hand, if the player has used all the given number of game balls and has failed to complete any of the rising roles, the main control board performs processing to end (game) the game. .

  In addition, if the rising combination completed by the player is the same as a specific rising combination (for example, “Dai Sangen”) determined by an internal lottery using random number generation means at the start of the game, For a predetermined number of games, a special game combination (bonus game combination) that is more advantageous to the player than a normal game is provided.

  In general, the sparrow ball game machine 10 is provided with two types of roles, a big game role and a chance game role, as special game roles. A big game combination is advantageous to a player with respect to a predetermined number of games including the game when it is raised in a specific rising combination (for example, “Kokushi Musou” or “Daisangen”) that has been drawn in advance. A role that gives conditions.

  That is, in a game in which the big game combination is activated, the gate 26 of the game board surface 20 becomes effective, and when the launched game ball passes through the gate 26, the door of the attacker 24 is opened. When the game ball falls into the attacker 24, the player can arbitrarily select a desired basket as his / her own by operating the shift buttons 45a, 45b, the selection determination button 46, and the like. Then, when the player completes the rising combination in the game in which the big game combination is activated, the player can obtain a higher score (number of medals) than usual.

  Next, a chance game combination means that if a player goes up with a specific rising combination (for example, “Peace”, “Ichiguchi”, etc.) that has been drawn in advance, the number of points earned in that game will be higher than that of a normal game. It is a combination that adds or makes the above-mentioned big game combination effective only for the next one game.

  Note that the sparrow ball game machine 10 is provided with score increasing means for increasing the number of points more than usual when the game is completed under the condition of the rising combination set in advance, in addition to the special game combination. For example, this score increasing means further adds a predetermined number of medals for each of the drags if the hand that completed the rising hand includes a lottery.

  Next, the case structure of the sparrow ball game machine 10 will be described in more detail.

  As described above, the sparrow ball game machine 10 includes the substantially box-shaped housing 30 and the front frame 11 that can be opened and closed with respect to the housing 30. Furthermore, as shown in FIG. 2, the front frame 11 includes a glass frame member 60 and an intermediate frame member 70 that are 32 door members. Here, FIG. 3 is a front view of the housing 30 with the front frame 11 removed, and mainly shows the internal structure of the housing 30.

  In FIG. 3, a power supply device 32 and an external terminal board 33 are attached to the inside upper part of the back plate 31 a of the housing 30. The power supply device 32 is a device for converting electric power supplied from the outside into a predetermined operating voltage of each device of the sparrow ball game machine 10 and distributing electric power of a capacity necessary for each. The external terminal board 33 sends signals indicating information such as the number of out (introduced medals), the number of safe (acquired medals), the number of operations of special gamers (big, chance, etc.) of the sparrow ball game machine 10 to an external hall, for example, It is an interface circuit board for outputting to a computer.

  In a substantially central portion of the housing 30, a main control device 34 in which a control circuit board generally called a “main control board” is stored in a transparent plastic case is provided with left and right mounting brackets 35a fixed to the back plate 31a. , 35b so as not to be detached. This main control board is a microcomputer-based control circuit board on which a CPU and a semiconductor memory such as ROM / RAM are mounted. The CPU executes arithmetic processing according to a predetermined program stored in the ROM, thereby The overall operation of the gaming machine 10 such as game progress and driving of each device is controlled in an integrated manner.

  Below the main control device 34, a relay board 36 is provided in a transparent case. The relay board 36 electrically connects, for example, a harness for supplying power from the power supply device 32 to the medal payout device 38 and a harness for control signals between the main controller 34 and the medal payout device 38 via connectors. ing.

  The medal payout device 38 installed on the bottom plate 31b of the housing 30 has a generally bowl-shaped hopper portion 381 capable of storing a plurality of medals and a medal stored in the hopper portion 381 from the medal discharge port 38a. And a medal payout mechanism 382 that urges and releases the sheets one by one. In addition, an overflow tank 39 for receiving medals overflowing from the hopper 381 is installed adjacent to the medal payout device 38.

  On the inner wall of the side plate 31c on the side where the front frame 11 opens and closes in the housing 30 (hereinafter referred to as “opening / closing side”), two upper and lower lock plates 111 and 112 extend inwardly perpendicular to the side plate 31c, respectively. Is fixed in a state of standing substantially vertically. These lock plates 111 and 112 are engaged with a lever of a locking mechanism 710 (see FIG. 5), which will be described later, provided on the front frame 11 (see FIG. 2) side, thereby holding the front frame 11 (see FIG. 2). The body 30 is locked in a closed state. Near the lower side of the lower lock plate 112, a guide plate 113 for guiding and supporting a roller member provided on the front frame 11 side is fixed to the side plate 31c with its upper surface being substantially horizontal.

  Next, the front frame 11 composed of the middle frame member 70 and the glass frame member 60 will be described in detail. Here, FIG. 4 is a front view showing the internal structure of the front frame 11 in a state where the glass frame member 60 is opened, and FIG. 5 is a rear view showing the back surface structure of the middle frame member 70.

  First, the structure of the middle frame member 70 will be described with reference to FIGS. 4 and 5. 4, the middle frame member 70 has a game board unit 200 attached from behind to a hard plastic base frame body 701 that is a rectangular outer frame body aligned with the opening of the housing 30 (see FIG. 2). Yes. In FIG. The game board unit 200 is fixed and held in the inner housing portion of the base frame body 701 by operating a rotation lock lever 705 provided at an appropriate position of the base frame body 701 to a predetermined rotation position. ing.

  As shown in FIG. 5, on the back side of the base frame body 701, when the middle frame member 70 is closed to the housing 30 (see FIG. 3), the lock plates 111 and 112 (see FIG. 3) are engaged. A locking mechanism 710 for automatic locking is configured.

  4 and 5, the game board unit 200 attached from behind the base frame body 701 is provided with a game board main body 201 made of a wooden laminated plywood on which the above-described game board surface 20 is formed. That is, a cell with a pattern is pasted on the front surface of the game board main body 201. As described above, the attacker 24, the decorative portion 22, the effect control liquid crystal display device 21, a gauge, and the like are provided together with the entrance slot 28. Is provided. Also, below the game board surface 20, a ball launch passage portion 210 is formed that guides the game balls launched from the ball launcher 740 to the ball launch passage 202 of the game board main body 201.

  On the back side of the game board unit 200, as shown in FIG. 5, an electric accessory board 22 a and the like are installed in the game board main body 201 via a support plate 203. The electric accessory board 22a is an electronic circuit board on which the attacker 24, the effect control liquid crystal display device 21 and the like are mounted, and these are driven and controlled.

  A sub-control device 54 is provided on the back side of the game board main body 201. The sub-control device 54 operates under the control of the main control device 34 described above, in which an “image processing sub-control board”, which is a microcomputer-based control circuit board, is stored in a transparent plastic case. That is, the sub-control device 54 uses an effect by light that lights and blinks the effect lamps 16a, 16b, 17a, and 17b according to a control signal output from the main control device 34, and a sound that sounds the speakers 735a and 735b. It is in charge of operation control such as game navigation using the production and production control liquid crystal display devices 14 and 21.

  On the back side of the middle frame member 70, below the game board unit 200, a ball storage unit 56 for storing game balls that are circulated and reused in the sparrow ball game 10 is provided. In the ball storage unit 56, in order to supply the game balls dropped and collected into the entrance of the game board surface 20 one by one to the ball launching device 740, a plurality of game balls are arranged and waited. A spherical passage is formed inside.

  Further, a medal guide member 55 is provided adjacent to the ball storage unit 56. The medal guide member 55 guides a regular medal inserted into the medal insertion unit 40 on the front surface to the hopper 381 of the medal payout device 38.

  A ball launcher 740 that launches one game ball onto the game board surface 20 by a turning operation of the ball launch lever 81 and a game assisting board 730 are disposed in the lower part on the back side of the middle frame member 70. In the game auxiliary board 730, speakers 735a and 735b facing the sound outlets 53a and 53b formed in the front integrated dish panel 19 are fixed to a board member 731 made of wooden laminated plywood, respectively.

  The game assisting board 730 is formed with an opening of a medal outlet passage 732 that communicates with the medal outlet portion 52 formed in the integrated dish panel 19.

  Next, the structure of the glass frame member 60 is demonstrated with reference to FIG. 6 and FIG. Here, FIG. 6 is a rear view showing the back surface structure of the glass frame member 60, and FIG. 7 is an exploded perspective view showing the configuration of the glass frame member 60.

  6 and 7, a glass frame member 60 includes a base frame body 601 integrally formed of hard plastic, a pair glass 610 facing the base frame body 601, a panel part 15 in which a discard button 42 and the like are disposed. And an effect control liquid crystal display device 14 or medal selector 620 accommodated in the control panel 15, and these are assembled into a unit.

  The base frame 601 is formed with a substantially semicircular opening 13a that allows the game board surface 20 to face, a relief groove 601a for exposing the key hole 18 of the middle frame member 70 to the front surface, and the like.

  The pair glass 610 is formed by making two transparent plates made of glass or hard plastic face each other at a predetermined interval, and is formed in a rectangular shape. Are held by glass frame plates 615, 616, and 617. Moreover, the hinge part 611 pivotally supported by the middle frame member 70 (refer FIG. 2) is provided in the up-and-down both ends of the glass frame plate 617 by the side of a pivot.

  A notch 616a corresponding to the above-described relief groove 601a of the base frame body 601 is formed in the glass frame plate 616 that is mounted on the opening / closing side (the side opposite to the shaft support side) of the glass frame member 60. .

  Moreover, in this embodiment, the both ends of the panel part 15 are fixed to the attachment part formed in the lower part of the left and right glass frame plates 616 and 617 via screws (not shown), so that the glass frame part 13 and The panel unit 15 is assembled by being connected vertically.

  In FIG. 7, the panel unit 15 has a space 151 for accommodating the effect control liquid crystal display device 14 and the like on the back surface side, and an opening and the like that allows the display surface 141 of the effect control liquid crystal display device 14 to face the outside on the upper surface part 15a. And is integrally formed of hard plastic. A transparent acrylic plate is fitted into the opening that faces the display surface 141 of the effect control liquid crystal display device 14 to the outside, thereby forming a transparent window 154. In addition, the control unit 15 includes a switch unit 42a in which a plurality of discard buttons 42 are arranged, a switch unit 44a for mounting reach buttons 44 (see FIG. 1), shift buttons 45a and 45b (see FIG. 1), and the like. Each is fitted into an opening formed at a predetermined position.

  Further, the inner surface of the glass frame member 60 including the panel part 15 is plated with conductivity, and is electrically connected to the ground potential (earth) of the power supply device 32 (see FIG. 1).

  A pair of mounting brackets 901 and 902 are formed in the space 151 of the panel portion 15 so as to hang from the vicinity of both left and right ends of the transparent window 154. The effect control liquid crystal display device 14 is inserted into and fitted into the mounting holes formed in the mounting brackets 901 and 902 so that the effect control liquid crystal display device 14 is a panel part. 15 is attached at a predetermined position. The mounting surfaces of the mounting brackets 901 and 902 are also plated with conductivity, and are electrically connected to the ground potential (earth) of the power supply device 32 (see FIG. 1).

  In addition, a medal selector 620 for determining whether the medal inserted from the medal insertion unit 40 on the front side is correct or not is attached to a predetermined position on the back side of the panel unit 15. A return path 152 is provided below the medal selector 620 for guiding the medals (foreign matter) determined to be inappropriate by the medal selector 620 and shaken down to the medal outlet 52 side.

  FIG. 8 is an exploded perspective view of the effect control liquid crystal display device 14. FIG. 9 is an exploded perspective view of the liquid crystal display unit 400. FIG. 10 is a perspective view of the effect control liquid crystal display device 14 in an assembled state.

  In FIG. 8, the effect control liquid crystal display device 14 has an effect control board 531 attached to the back side of the liquid crystal display unit 400, and the effect control board 531 covered with a control board cover 532. The effect control board 531 is electrically connected to the liquid crystal display unit 400 via the power harness 533 and the signal harness 534.

  Next, the liquid crystal display unit 400 will be described in detail.

  In FIG. 9, a liquid crystal display unit 400 includes a liquid crystal panel unit 401, an inverter 402, an image control board 403, a main body case 404, a liquid crystal front case 405, a rear case 406, a transparent protective panel 407, and a cooling fan. 408, a heat sink 409, a heat sink base 410, a ground contact piece 411, and silicone rubber plates 412, 413.

  The liquid crystal panel unit 401 has a screen 423 formed by superimposing a liquid crystal panel 421 and a backlight 422 on one surface, and the backlight 422 emits light by power supplied from the power supply wiring 424, and serves as a liquid crystal driving wiring. The light from the backlight 422 is transmitted to the liquid crystal panel 421 in a state where the transmittance of the liquid crystal panel 421 is controlled by a liquid crystal drive signal supplied from one end of a flexible flat cable (hereinafter referred to as FFC) harness 425. By doing so, an image is displayed on the screen 423.

  A transparent protective panel 407 is disposed on one side of the liquid crystal panel unit 401.

  On the other hand, the inverter 402 supplies power to the power supply wiring 424 and is electrically connected to the image control board 403 via the harness 426.

  The main body case 404 is made of synthetic resin as a base material, and has one surface side housing portion 431 for housing the liquid crystal panel unit 401 on one surface, and the inverter 402, the image control board 403, the cooling fan 408, the heat sink 409, on the other surface. The other side housing part 432 for housing the heat sink base 410, the ground contact piece 411, and the silicone rubber plates 412, 413 is formed, and the first and the first passages through which the power wiring 424 and the FFC harness 425 pass from one side to the other side, respectively. Two notches 433 and 434 are formed. The main body case 404 has a metal plating with chromium on the entire outer surface.

  8 and 9, attachment portions 435 and 436 are provided at both left and right ends of the main body case 404. In FIG. 8, two attachment members 142 (see FIG. 7) each including a chromet 437 and a plunger 438 are provided on the attachment portions 435 and 436. The chromet 437 and the plunger 438 are made of resin such as vinyl that does not conduct electricity.

  The left attachment portion 435 is attached by the left and upper attachment members 142 in close contact with the left attachment bracket 901 (see FIG. 7) of the panel portion 15 (see FIG. 7) without a gap.

  The right mounting portion 436 has upper and lower mounting members in a state where there is no gap in the right mounting bracket 902 (see FIG. 7) of the panel portion 15 (see FIG. 7) via an insulating member 800 in which rubber is formed in a plate shape. 142. In this case, the upper right mounting member 142 is inserted into the upper through hole 439 a formed in the right mounting portion 436, inserted into the upper through hole 801 a formed in the insulating member 800, and the right mounting bracket 902. It fits into the upper fitting hole 903a (see FIG. 7) formed in (see FIG. 7). The lower right mounting member 142 is inserted into the through hole 439b on the lower side formed in the right mounting portion 436, and is inserted into the through hole 801b on the lower side formed in the insulating member 800, so that the right mounting bracket 902 is inserted. The lower side formed in (see FIG. 7) is fitted into the fitting hole 903b (see FIG. 7).

  In FIG. 9, the image control board 403 is provided with a CPU 441 and a RAM 442, and board-side connectors 443 and 444 on the face facing the back face of the other-side storage section 432. A silicone rubber plate 412 is attached to the surface of the case of the CPU 441. A silicone rubber plate 413 is attached to the surface of the case of the RAM 442.

  The board-side connector 443 is connected to the other end of the FFC harness 425.

  The board-side connector 444 is connected to one end side of the harness 426. The other end side of the harness 426 is connected to the inverter 402.

  The heat sink 409 is made of a metal having high thermal conductivity, and a plurality of heat radiating fins 446 are arranged side by side on one surface of the plate-like portion 445.

  The other surface side of the plate-like portion 445 of the heat sink 409 is in contact with one surface of the silicone rubber plates 412 and 413.

  The heat sink base 410 is made of metal, and integrally includes two upper and lower horizontal portions 451 and 452 and left, center, and right U-shaped portions 453, 454, and 455 protruding rearward.

  The U-shaped portions 453, 454, and 455 are inserted into gaps between the plurality of heat radiation fins 446 so as to come into contact with the plate-shaped portion 445. Further, the central U-shaped portion 454 is fixed to the plate-like portion 445 with screws 456.

  The upper horizontal portion 451 is screwed and fixed to the inner surface of the other surface side storage portion 432 together with one end side of the ground contact piece 411 by a screw 457.

  The lower horizontal portion 452 is fixed to the back surface of the other-side storage portion 432 with screws 458.

  The ground contact piece 411 is formed by bending an L-shaped metal plate.

  The other end side of the ground contact piece 411 is screwed and fixed to the other surface side housing portion 432 of the main body case 404 along with the vicinity of the upper right corner of the image control board 403 by screws 459 and comes into contact with the ground pattern of the image control board 403.

  The image control board 403 has an intermediate portion near the upper side, an upper right corner, a lower left corner, a right-side position near the lower side, and a lower right corner near the lower right corner by screws 460, 461, 462, 463, and 464, respectively. The other surface side storage portion 432 is fixed with screws.

  The cooling fan 408 is screwed and fixed to the other surface side storage portion 432 with screws 465 and 466 and is disposed above the heat sink 409.

  The inverter 402 is screwed and fixed to the back surface of the other surface side storage portion 432 by screws 467 and 468 and is arranged on the right side of the image control board 403.

  A cutout 471 for allowing air to flow into the cooling fan 408 is formed in the upper wall portion 470 of the other surface side storage portion 432.

  A notch 473 for discharging the air that has flowed from the cooling fan 408 to the heat sink 409 is formed in the lower wall portion 472 of the other surface side storage portion 432.

  The liquid crystal front case 405 is formed by bending a metal plate into a frame shape, is attached to one surface side of the main body case 404, and covers the outer periphery of the screen 423 and the transparent protective panel 407 of the liquid crystal panel unit 401. Further, the liquid crystal front case 405 is locked to the upper part of the main body case 404 by locking pieces 481 and 482 formed on the upper side of the back surface, and the lower side is fixed to the lower part of the main body case 404 by screws 483 and 484. Thus, the main body case 404 is fixed.

  The rear case 406 is formed by bending a metal plate of iron or the like into a frame shape and plating the entire surface with chromium or the like, and includes upper and lower and right and left wall portions 491 and 492 surrounding one side of the flat portion 490 and the flat portion 490. , 493, 494 having one side opened, and the opening side facing the other side of the main body case 404 is attached to the main body case 404, and an internal space is formed between the main body case 404 and the main body case 404. Form.

  The rear case 406 has through portions 495 and 496 that allow the power harness 533 (see FIG. 8) and the signal harness 534 (see FIG. 8) from the effect control board 531 (see FIG. 8) to pass from the outside of the case to the inside of the case, respectively. Is formed.

  A plurality of through-portions 497 for allowing air to flow into the cooling fan 408 are formed in the upper wall portion 491 of the rear case 406.

  A plurality of slits 498 for discharging air flowing from the cooling fan 408 to the heat sink 409 are formed in the lower wall portion 492 of the rear case 406.

  The rear case 406 has the upper, lower, left and right wall portions 491, 492, 493, 494 inserted into the other surface side storage portion 432, and the other side of the main body case 404 by screws 501, 502, 503, 504. Fixed with screws.

  Screw holes 511, 512, 513, 514, 515, 516 are formed in the flat portion 490 of the rear case 406. The screw holes 511, 512, 513, 514, 515, 516 have other than the flat portion 490. The screw portions of the spacers 541, 542, 543, 544, 545, and 546 shown in FIG. 8 are screwed in from the surface side, and the spacers 541, 542, 543, 544, 545, and 546 are attached.

  In FIG. 8, the effect control board 531 is fixed to the spacers 541, 542, 543, 544, and 546 by screws 551, 552, 553, 554, and 556. As a result, the effect control board 531 is fixed to the back side of the flat portion 490 (see FIG. 9) of the rear case 406 (see FIG. 9) via a gap.

  Connectors 557, 558, and 559 are provided in the vicinity of the right side of the back surface of the effect control board 531.

  The control board cover 532 is made of synthetic resin, and has a flat surface portion 560 and upper, lower, left and right wall portions 561, 562, 563, and 564 surrounding the one surface side of the flat surface portion 560. The production control board 531 facing the other surface of the main body case 404 is mounted on the main case 404 as shown in FIG. 10 and an internal space is formed between the main case 404 and the main case 404.

  In FIG. 8, an opening 565 that exposes the connectors 557, 558, and 559 of the effect control board 531 is formed in the flat part 560 of the control board cover 532.

  The control board cover 532 is screwed and fixed to the spacer 544 together with the effect control board 531 by screws 555.

  A label 566 indicating the type of the effect control liquid crystal display device 14 is attached to the upper wall portion 561 of the control board cover 532.

  With such a structure, the sparrow ball game machine 10 has a liquid crystal display device (the first game board (game board unit 200) on the front side together with a game board and a game operation unit (reach button 42, discard button 44, ball launch lever 81). 1 production control liquid crystal display device 14).

  The liquid crystal display device (first effect control liquid crystal display device 14) supplies power to the liquid crystal panel unit 401 having a display screen 423 formed by overlapping a liquid crystal panel 421 and a backlight 422 on one surface, and the backlight 422. The inverter 402, the image control board 403 that supplies the liquid crystal drive signal to the liquid crystal panel 421, and the inverter 402 and the image control board together with the liquid crystal panel unit 421 with the display screen 423 of the liquid crystal panel 421 exposed to the outside. 403 and at least a main body case 404 that accommodates 403.

  The main body case 404 is made of synthetic resin as a base material, and is plated on the entire outer surface with a conductive metal film.

  The liquid crystal display device (first effect control liquid crystal display device 14) is connected to the main body frame (glass frame member 60) of the sparrow ball game machine 10 through at least a pair of attachment portions 435 and 436 formed in the main body case 404. ).

  The main body case 404 is electrically connected to the ground potential of the main body frame (glass frame member 60) via any one of the attachment portions (in this embodiment, the attachment portion 435), and at least one of the other cases. It is electrically insulated via one said attachment part (this embodiment attachment part 436). In this case, the electrical insulation is performed by the insulating member 800.

  The effect control liquid crystal display device 14 of the sparrow ball game machine 10 having such a configuration can unitize the liquid crystal panel unit 401, the inverter 402, and the image control board 403 by using a main body case 404 formed of a synthetic resin as a base material. In addition, since the outer surface of the main body case 404 is plated with a conductive metal film, the main body case 404 does not transmit electromagnetic waves, and electromagnetic waves and static electricity from the outside of the main body case 404 are not exposed to the liquid crystal panel unit 401 or In addition to preventing the image control board 403 from being affected, it is possible to prevent noise radio waves emitted from the inverter 402 from affecting the circuit outside the main body case.

  In addition, the main body case 404 is formed by using a synthetic resin as a base material, and a plating process with a conductive metal film is applied to the entire outer surface. It can be easily realized.

  Further, according to the sparrow ball game machine 10, the main body case 404 of the first effect control liquid crystal display device 14 is electrically insulated from the main body frame (glass frame member 60) by at least one mounting portion. For this reason, an electric loop circuit is not formed including the main body frame (glass frame member 60) and the main body case 404 of the sparrow ball game machine 10. Thereby, the inductance of the electromagnetic shield circuit by the main body frame (glass frame member 60) and the main body case 404 can be reduced. Therefore, the electromagnetic waves from the outside of the main body case 404 and the first effect control liquid crystal display device 14 can be reduced. Secondary radio interference induced by noise radio waves leaking from the inside can be suppressed as much as possible.

  Further, since the rear case 406 is formed using a metal as a base material, it is possible to prevent the influence of noise radio waves emitted from the inverter 402 on the circuit disposed behind the rear case 406 and to prevent the rear case 406 from being affected. The influence of electromagnetic waves from the circuit arranged behind the case 406 can be prevented.

  In the embodiment shown in FIGS. 1 to 10, the rear case 406 has a structure in which a metal is used as a base material and a metal plating is applied to the outer surface. However, a synthetic resin is used as a base material in the rear case. In this case, the influence of noise radio waves can be prevented on the circuit disposed behind the rear case.

    The present invention is not limited to the sparrow ball game machine in which the production control liquid crystal display device in which the outer surface of the main body case using a synthetic resin as a base material is subjected to metal plating is provided on the second door member, and the synthetic resin is used as a base material. The effect control liquid crystal display device in which metal plating is performed on the outer surface of the main body case can be applied to a gaming machine provided on a gaming board.

FIG. 1 is a front view of a sparrow game machine according to an embodiment of the present invention. FIG. 2 is a side view of the sparrow ball game machine shown in FIG. FIG. 3 is a front view showing the internal structure of the housing with the front frame of the sparrow ball game machine according to the embodiment of the present invention removed. FIG. 4 is a front view of the sparrow ball game machine according to the embodiment of the present invention with the glass frame member opened. FIG. 5 is a rear view of the middle frame member of the sparrow ball game machine according to the embodiment of the present invention. FIG. 6 is a rear view of the glass frame member of the sparrow ball game machine according to the embodiment of the present invention. FIG. 7 is an exploded perspective view of the glass frame member shown in FIG. FIG. 8 is an exploded perspective view of the effect control liquid crystal display device shown in FIG. FIG. 9 is an exploded perspective view of the liquid crystal display unit 400 shown in FIG. FIG. 10 is a perspective view of the assembled production control liquid crystal display device shown in FIG.

Explanation of symbols

10 ... Sparrow ball machine, 30 ... Housing, 12 ... Hinge shaft support, 11 ... Front frame,
13 ... Glass frame part, 13a ... Opening part,
14 ... 1st effect control liquid crystal display device, 15 ... Control panel part,
15a ... Upper surface, 15b ... Lower surface, 16a, 16b ... Production lamp
17a, 17b ... directing lamp, 18 ... keyhole, 19 ... integrated dish panel,
20 ... game board surface, 21 ... second effect control liquid crystal display device, 22 ... decoration part,
22a ... Electric circuit board, 23 ... Dot lamp device, 24 ... Special entrance,
25a, 25b ... Entrance, 26 ... Passage, 27 ... Windmill,
28 ... Entry line, 29a ... Rail member, 29 ... Sphere launch passage,
30 ... Housing, 31a ... Back plate, 31b ... Bottom plate, 31c ... Side plate,
32 ... Power supply device, 33 ... External terminal board, 34 ... Main control device,
35a, 35b ... left and right mounting brackets, 36 ... relay board,
31b ... medal bottom plate, 38 ... medal payout device, 38a ... medal discharge port,
39 ... overflow tank, 40 ... medal slot,
41 ... Medal return button, 43 ... BET button, 42 ... Discard button,
42a ... switch unit, 44 ... reach button,
44a ... Switch unit, 45a, 45b ... Shift button,
46 ... Selection decision button, 51 ... Medal tray,
52 ... Medals outlet, 53a, 53b ... Sound outlet, 54 ... Sub-control device,
55 ... Medal guide member, 56 ... Sphere storage part, 60 ... Glass frame member,
70 ... middle frame member, 81 ... isosphere launch lever, 111 ... lock plate,
112 ... Lock plate, 113 ... Guide plate,
141 ... display surface, 142 ... mounting member,
151 ... space, 152 ... return road,
154 ... transparent window, 200 ... game board unit, 201 ... game board body,
202 ... Sphere launch passage, 210 ... Sphere launch passage portion, 203 ... Support plate,
381 ... Hopper part, 382 ... Medal payout mechanism part,
400 ... Liquid crystal display unit, 401 ... Liquid crystal panel unit,
402: Inverter, 403: Image control board,
404 ... Main body case, 405 ... Liquid crystal front case,
406 ... Rear case, 407 ... Transparent protective panel, 408 ... Cooling fan,
409 ... heat sink, 410 ... heat sink base,
411 ... ground contact piece, 412, 413 ... silicone rubber plate,
421 ... Liquid crystal panel, 422 ... Back light,
423 ... screen, 424 ... power supply wiring, 425 ... FFC harness,
426 ... Harness, 431 ... One surface side storage portion, 432 ... Other surface side storage portion,
433, 434 ... Notch part, 435, 436 ... Mounting part,
437 ... chromet, 438 ... plunger,
439a, 439b ... through hole, 441 ... CPU,
442 ... RAM, 443, 444 ... Board side connector,
451, 452 ... horizontal part, 453, 454, 455 ... U-shaped part,
446 ... Radiating fins, 445 ... Plate-shaped part,
456, 457, 458, 459, 460, 461, 462 ... screws,
463, 464, 465, 466, 467, 468 ... screws,
470 ... wall, 471 ... notch, 472 ... wall, 473 ... notch,
481, 482 ... locking piece, 483, 484 ... screw,
490 ... plane part, 491, 492, 493, 494 ... wall part,
531 ... Production control board, 533 ... Power harness,
534 ... Signal harness, 495, 496 ... penetrating part, 497 ... penetrating part,
498 ... slit, 501, 502, 503, 504 ... screw,
511, 512, 513, 514, 515, 516 ... screw holes,
531 ... Production control board, 532 ... Control board cover,
533: Power harness, 534: Signal harness,
541, 542, 543, 544, 545, 546 ... spacers,
551, 552, 553, 554, 555, 556 ... screw,
557, 558, 559 ... connector, 560 ... flat surface,
561, 562, 563, 564 ... wall, 565 ... opening,
566 ... Label, 601 ... Base frame, 601a ... Relief groove,
610 ... Pair glass, 611 ... Hinge,
615, 616, 617 ... escape glass frame plate,
616a ... Notch, 616b ... Reinforcement plate, 620 ... Medal selector,
701 ... Base frame body, 702 ... Wooden frame board, 705 ... Rotation lock lever,
710 ... Locking mechanism, 730 ... Game auxiliary board, 731 ... Board member,
732 ... Medal exit passage, 735a, 735b ... Speaker,
740 ... Ball launcher, 800 ... Insulating member,
Through holes 801a, 801b ... through holes, 901, 902 ... mounting brackets,
903a, 903b ... fitting holes

Claims (2)

A sparrow ball game machine having a liquid crystal display device together with a game board and a game operation unit on the front surface,
The liquid crystal display device includes a liquid crystal panel unit having a display screen in which a liquid crystal panel and a backlight are overlaid on one surface, an inverter that supplies desired power to the backlight, and an image that supplies a liquid crystal drive signal to the liquid crystal panel. A control board; and at least a main body case for housing the inverter and the image control board together with the liquid crystal panel unit in a state where the display screen of the liquid crystal panel is exposed to the outside.
The sparrow ball game machine is characterized in that the main body case is made of a synthetic resin as a base material, and is plated on the entire outer surface with a conductive metal film. The liquid crystal display device is attached to the main frame of the sparrow ball game machine through at least a pair of attachment portions formed in the main body case,
Further, the main body case is electrically connected to the ground potential of the main body frame via any one of the mounting portions, and is electrically insulated via at least one other mounting portion. The sparrow ball game machine according to claim 1, wherein

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