Game machine

Abstract

To provide a gaming table that can improve maintainability. 【Solution means】It includes a certain substrate having a first surface and a second surface, the second surface is the back surface of the first surface, the first surface has a first region where no wiring pattern is formed and a third region where a first wiring pattern is formed, and the second surface has a second region where no wiring pattern is formed and a fourth region where a second wiring pattern is formed. Further, the first region can transmit at least a part of the light directed towards the second surface, the second region can transmit at least a part of the light directed towards the second surface, the third region cannot transmit the light directed towards the second surface, the fourth region cannot transmit the light directed towards the second surface, and in the first case, the region of the first region that overlaps with the second region can transmit at least a part of the light directed towards the second surface.

Description

Technical Field

[0001] The present invention relates to a game table represented by a pachinko machine, a reel game machine (slot machine), an enclosed game machine, or a medal-less slot machine.

Background Art

[0002] Conventionally, as one type of game table, for example, a slot machine is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In this type of game table, improvement in maintainability is desired.

Means for Solving the Problems

[0005] The game table according to the present invention is a game table including a certain substrate having a first surface and a second surface, wherein a base material of the certain substrate is light-transmissive, the second surface is a surface opposite to the first surface with the base material interposed therebetween, the first surface has a first region where no wiring pattern is formed and a third region where the wiring pattern is formed, the second surface has a second region where no wiring pattern is formed and a fourth region where the wiring pattern is formed, the wiring pattern is light-impermeable, and in a first case, in a certain region (hereinafter referred to as "fifth region") of the first region that overlaps the second region when viewed from a direction perpendicular to the second surface and the first surface, at least a part of the light traveling from the side of the second surface toward the second surface as viewed from the side of the first surface Visual recognitionIt is possible that in the first case, in a certain area (hereinafter referred to as the "sixth area") of the first area that overlaps with the fourth area when viewed from a direction perpendicular to the second surface and the first surface, at least a part of the light traveling from the side of the second surface toward the second surface is blocked when viewed from the side of the first surface. Visual recognition It is possible that in the first case, the brightness of the fifth area is higher than the brightness of the sixth area. The gaming table is characterized by this.

Advantages of the Invention

[0006] An object of the present invention is to provide a gaming table capable of improving maintainability.

Brief Description of the Drawings

[0007]

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Mode for Carrying Out the Invention

[0008] <<Embodiment 1>> Hereinafter, with reference to the drawings, a gaming machine (slot machine) according to Embodiment 1 of the present invention will be described.

[0009] <Overall Configuration> First, the overall configuration of the slot machine 100 will be described with reference to FIG. 1. FIG. 1 is an external perspective view of the slot machine 100 as viewed from the front side (player side).

[0010] The slot machine 100 shown in FIG. 1 corresponds to an example of the gaming table of the present invention and includes a main body 101 and a front door 102 attached to the front of the main body 101 and openable and closable with respect to the main body 101. Inside the center of the main body 101 (not shown), three reels (left reel 110, middle reel 111, right reel 112) with a plurality of types of symbols arranged on the outer peripheral surface are housed and configured to be rotatable inside the slot machine 100. These reels 110 to 112 are rotationally driven by a driving device such as a stepping motor.

[0011] In the present embodiment, a suitable number of each symbol is printed at equal intervals on a strip-shaped member, and this strip-shaped member is attached to a predetermined circular cylindrical frame member to form each of the reels 110 to 112 (see FIG. 4). The symbols on the reels 110 to 112 are generally displayed vertically in three rows from the symbol display window 113 provided in front of each of the reels 110 to 112 as seen by the player, and a total of nine symbols can be seen.

[0012] By rotating each of the reels 110 to 112, the combination of symbols visible to the player will change. That is, each of the reels 110 to 112 functions as a display device capable of varying the combination of a plurality of types of symbols. In addition to the reels, an electronic image display device such as a liquid crystal display device can also be adopted as such a display device. Further, in the present embodiment, three reels are provided inside the center of the slot machine 100, but the number of reels and the installation position of the reels are not limited to this.

[0013] On the back of each of the reels 110 to 112, a backlight 264 (see Fig. 18) for illuminating the individual symbols displayed in the symbol display window 113 is arranged (details will be described later). Further, in the vicinity of each of the reels 110 to 112 inside the slot machine 100, an optical sensor (also called an index sensor, not shown) composed of a light projecting part and a light receiving part is provided, and it is configured such that a light shielding piece having a certain length provided on the reel passes between the light projecting part and the light receiving part of this optical sensor. Based on the detection result of this sensor, the rotational direction position of the symbol on the reel is judged, and the reels 110 to 112 are stopped so that the target symbol is displayed on the winning line.

[0014] The notification lamp 123 is, for example, a lamp that notifies the player that in the internal lottery described later, a specific winning combination (specifically, special combination 1 or special combination 2) has been internally won, or that a bonus game is in progress (during the special combination 1·2 game state). The game medal insertable lamp 124 is a lamp for notifying the player that the player can insert game medals. The replay lamp 122 is a lamp that notifies the player that when winning a replay, which is one of the winning combinations in the previous game, the current game can be replayed (no medal insertion is required). The reel panel lamp 128 is a lamp for effect.

[0015] The bet buttons (first operation means) 130 to 132 are buttons for inserting a predetermined number of medals (referred to as credits) electronically stored in the slot machine 100. In the present embodiment, each time the bet button 130 is pressed, one medal is inserted up to a maximum of three medals, two medals are inserted when the bet button 131 is pressed, and three medals are inserted when the bet button 132 is pressed. Hereinafter, the bet button 132 is also referred to as the MAX bet button. Note that the game medal insert lamp 129 lights up a number of lamps corresponding to the number of inserted medals, and when a specified number of medals are inserted, the game start lamp 121, which notifies that the game start operation is possible, lights up.

[0016] The performance button 156 is an operation means operable by the player. In this embodiment, it is composed of buttons that can be pressed by the player and is used for various performances. The operation means used for such performances is not limited to buttons. For example, it may be composed of a lever, a touch panel, etc., or may be provided with a plurality of operation means.

[0017] The medal insertion slot 141 is an insertion slot for the player to insert medals when starting the game. That is, medals can be inserted electronically by the bet buttons 130 to 132, or actual medals can be inserted (insertion operation) from the medal insertion slot 141. The term "insertion" includes both of them.

[0018] The stored number display 125 is a display for displaying the number of medals electronically stored in the slot machine 100. The game information display 126 is a display for numerically displaying various internal information (for example, the number of medals paid out during the bonus game). The paid-out number display 127 is a display for displaying the number of medals paid out to the player as a result of winning a certain winning combination, and is also used as an instruction monitor for performing the pressing order performance. In this example, the stored number display 125, the game information display 126, and the paid-out number display 127 are 7-segment (SEG) displays.

[0019] The start lever (second operation means) 135 is a lever-type switch for starting the rotation of the reels 110 to 112. That is, when a desired number of medals are inserted into the medal insertion slot 141 or the bet buttons 130 to 132 are operated and then the start lever 135 is operated, the reels 110 to 112 will start to rotate. The operation on the start lever 135 is called the start operation of the game.

[0020] The stop button unit 136 is provided with stop buttons (pause buttons) 137 to 139. The stop buttons 137 to 139 are button-type switches for individually stopping the reels 110 to 112 that have started rotating by the operation of the start lever 135, and are associated with the respective reels 110 to 112. Note that a light emitter may be provided inside each of the stop buttons 137 to 139, and when the stop buttons 137 to 139 can be operated, the light emitter can also be lit to notify the player.

[0021] Hereinafter, the operation on the stop buttons 137 to 139 is referred to as a stop operation. The first stop operation is referred to as the first stop operation (hereinafter, also referred to as "first stop" or "1 stop"), the next stop operation is referred to as the second stop operation (hereinafter, also referred to as "second stop" or "2 stop"), and the last stop operation is referred to as the third stop operation (hereinafter, also referred to as "third stop" or "3 stop").

[0022] Also, the reels stopped corresponding to these stop operations are referred to as the first stop reel, the second stop reel, and the third stop reel in order. Furthermore, the order of operating the stop buttons 137 to 139 to stop all of the rotating reels 110 to 112 is referred to as the operation order (or the pressing order).

[0023] When the operation order (pressing order) of the stop buttons 137 to 139 is represented by the left stop button 137 as "left or L", the middle stop button 138 as "middle or C", and the right stop button 139 as "right or R", there are six types: (1) the operation order of left → middle → right (left middle right or LCR), (2) the operation order of left → right → middle (left right middle or LRC), (3) the operation order of middle → left → right (middle left right or CLR), (4) the operation order of middle → right → left (middle right left or CRL), (5) the operation order of right → left → middle (right left middle or RLC), and (6) the operation order of right → middle → left (right middle left or RCL).

[0024] The medal return button 133 is a button for pressing to remove medals when the inserted medals are jammed. The settlement button 134 is a button for settling the medals electronically stored in the slot machine 100 and the bet medals and discharging them from the medal payout opening 155. The door keyhole 140 is a hole for inserting a key to unlock the front door 102 of the slot machine 100.

[0025] Below the stop button unit 136, a title panel 162 for displaying the model name and attaching various certificates is provided. Below the title panel 162, a medal payout opening 155 and a medal tray 161 are provided. The sound hole 181 is a hole for outputting the sound of a speaker provided inside the slot machine 100 to the outside. The side lamps 144 provided on the left and right parts of the front door 102 are decorative lamps for enlivening the game. An effect device 160 is disposed above the front door 102, and a sound hole 143 is provided above the effect device 160.

[0026] This effect device 160 includes a shutter (shielding device) 163 composed of two right shutters 163a and left shutters 163b that can be opened and closed in the horizontal direction, and a liquid crystal display device 157 (effect image display device) disposed on the back side of the shutter 163. When the right shutter 163a and the left shutter 163b open outward in the horizontal direction in front of the liquid crystal display device 157, the display screen of the liquid crystal display device 157 appears in front of the slot machine 100 (the player side).

[0027] Note that any display device capable of displaying various effect images and various game information may be used, instead of a liquid crystal display device. For example, a multi-segment display (7-segment display), a dot matrix display, an organic EL display, a plasma display, a reel (drum), or a display device including a projector and a screen may be used. The display screen is rectangular, and the entire screen is configured to be visible to the player. In the case of the present embodiment, the display screen is rectangular, but it may be square. In addition, a decoration (not shown) may be provided at the periphery of the display screen, and as a result, a part of the periphery of the display screen is hidden by the decoration, so that the display screen may appear to have an irregular shape. In the case of the present embodiment, the display screen is a flat surface, but it may be a curved surface.

[0028] In addition, inside the main body 101, there are provided a setting key that can be switched between on and off by a rotation operation, an operation for changing settings (setting value change operation) and an operation for confirming settings by a pressing operation. The setting key is an operation means for starting the change and confirmation of the setting value (settings 1 to 6 in this example), and the setting switch is one of the setting means capable of setting one of a plurality of setting values.

[0029] <Winning line> Next, the winning line will be described with reference to FIG. 2. FIG. 2 is a diagram showing an example of the winning line of the slot machine 100.

[0030] As described with reference to FIG. 1, the symbols on the reels 110 to 112 are generally displayed vertically in three rows from the symbol display window 113 provided in front of each of the reels 110 to 112 as seen by the player, and a total of nine symbols can be seen.

[0031] Specifically, the symbol displayed in the upper row of the left reel 110 (position 1 shown in the figure; also referred to as symbol position 1) is called the upper left reel symbol, the symbol displayed in the middle row of the left reel 110 (position 2 shown in the figure; also referred to as symbol position 2) is called the middle left reel symbol, and the symbol displayed in the lower row of the left reel 110 (position 3 shown in the figure; also referred to as symbol position 3) is called the lower left reel symbol.

[0032] Also, the symbol displayed in the upper part of the middle reel 111 (the position 4 shown in the figure; also referred to as symbol position 4) is called the upper-middle reel symbol, the symbol displayed in the middle part of the middle reel 111 (the position 5 shown in the figure; also referred to as symbol position 5) is called the middle-middle reel symbol, and the symbol displayed in the lower part of the middle reel 111 (the position 6 shown in the figure; also referred to as symbol position 6) is called the lower-middle reel symbol.

[0033] Also, the symbol displayed in the upper part of the right reel 112 (the position 7 shown in the figure; also referred to as symbol position 7) is called the upper-right reel symbol, the symbol displayed in the middle part of the right reel 112 (the position 8 shown in the figure; also referred to as symbol position 8) is called the middle-right reel symbol, and the symbol displayed in the lower part of the right reel 112 (the position 9 shown in the figure; also referred to as symbol position 9) is called the lower-right reel symbol.

[0034] In this embodiment, as a winning line, only the middle winning line L1 (hereinafter, may be simply referred to as "winning line L1") composed of the middle-left reel symbol (symbol position 2), the middle-middle reel symbol (symbol position 5), and the middle-right reel symbol (symbol position 8) is provided.

[0035] Here, the winning line is a line set at the stop position of the symbol that can be visually recognized through the symbol display window 113, and it is a line for determining whether the symbol combination corresponding to the winning combination explained with reference to FIG. 5 is displayed (aligned). The valid winning line (hereinafter, may be simply referred to as "valid line") is determined in advance according to the number of medals bet as a game medium.

[0036] The slot machine 100 of this embodiment is a dedicated machine for three-coin bets. When the number of inserted medals is less than three, none of the winning lines are valid, and when three medals are bet, the winning line L1 becomes valid. When the winning line becomes valid, the game can be started by operating the start lever 135.

[0037] Hereinafter, among the symbol display windows 113, the symbol positions 2, 5, and 8 on the winning line L1 may be referred to as "winning positions", and the other symbol positions, that is, the symbol positions 1, 3, 4, 6, 7, and 9 may be referred to as "non-winning positions". That is, the winning position refers to the position where the symbols constituting the symbol combination corresponding to the winning combination stop on the winning line.

[0038] Note that the number of winning lines is not limited to one line. For example, in addition to the winning line L1, an upper winning line composed of the upper symbols of the left reel, the upper symbols of the middle reel, and the upper symbols of the right reel, and a lower winning line composed of the lower symbols of the left reel, the lower symbols of the middle reel, and the lower symbols of the right reel, a total of three lines may be set as valid winning lines, or the number of winning lines corresponding to the number of bets of medals may be set as valid winning lines.

[0039] <Control Unit> Next, with reference to FIG. 3, the circuit configuration of the control unit of the slot machine 100 will be described in detail. Note that this figure shows a circuit block diagram of the control unit.

[0040] The control unit of the slot machine 100 is roughly divided into a main control unit 300 (first control means) that mainly performs control related to the game, a first sub-control unit 400 (second control means) that mainly performs control related to the effect according to a command signal (hereinafter simply referred to as "command") transmitted by the main control unit 300, and a second sub-control unit 500 (second control means) that controls various devices based on the command transmitted from the first sub-control unit 400.

[0041] <Main Control Unit> First, the main control unit 300 of the slot machine 100 will be described. The main control unit 300 includes a basic circuit 302 that controls the entire main control unit 300. This basic circuit 302 is equipped with a CPU 304, a control program data, lottery data used during the internal lottery of winning combinations, a ROM 306 for storing the stop positions of the reels, etc., a RAM 308 for temporarily storing data, an I / O 310 for controlling the input / output of various devices, a counter timer 312 for measuring time, number of times, etc., and a WDT (watchdog timer) 314. Note that other storage devices may be used for the ROM 306 and the RAM 308, and the same applies to the first sub-control unit 400 and the second sub-control unit 500 described later.

[0042] The CPU 304 of this basic circuit 302 operates by inputting a clock signal with a predetermined period output by the crystal oscillator 315b as a system clock. Furthermore, when the power is turned on, the CPU 304 transmits the frequency division data stored in a predetermined area of the ROM 306 to the counter timer 312. The counter timer 312 determines the interrupt time based on the received frequency division data and transmits an interrupt request to the CPU 304 at each interrupt time. The CPU 304 executes monitoring of each sensor, etc. and transmission of drive pulses in response to this interrupt request. For example, when the clock signal output by the crystal oscillator 315b is set to 8 MHz, the frequency division value of the counter timer 312 is set to 1 / 256, and the frequency division data of the ROM 306 is set to 47, the reference time for the interrupt is 256 × 47 ÷ 8 MHz = 1.504 ms.

[0043] The main control unit 300 includes a random number value generation circuit 316 that derives a numerical value in the range of 0 to 65535 each time it receives a clock signal output by the crystal oscillator 315a (it is assumed that this circuit incorporates two random number value generation circuits), and a start signal output circuit 338 that outputs a start signal (reset signal) when the power is turned on. When the CPU 304 receives the start signal from this start signal output circuit 338, it starts game control (starts the main control unit main process described later).

[0044] The random number generation circuit 316 generates random numbers used by the basic circuit 302. There are roughly two methods for generating random numbers in this random number generation circuit 316: the counter mode and the random number mode. In the counter mode, a value that counts up (down) at a predetermined time interval is obtained, and this value is derived as a random number. There are further two methods in the random number mode. The first method in the random number mode is to perform an operation using a predetermined function (for example, a modulus function) with the seed of the random number, and derive the result of this operation as a random number. The second method is to read a value from a random number table in which values in the range of 0 to 65535 are randomly arranged, and derive the read value as a random number. The random number generation circuit 316 obtains irregular values by utilizing the white noise superimposed on the signals input from the various sensors 318 to the sensor circuit 320. The random number generation circuit 316 uses the values thus obtained as the initial value of a counter that counts up (down) in the counter mode, as the seed of the random number, or when determining the read start position of the random number table.

[0045] Also, the main control unit 300 is provided with a sensor circuit 320, and the CPU 304 monitors the states of various sensors 318 (bed button 130 sensor, bed button 131 sensor, bed button 132 sensor, medal reception sensor for medals inserted from the medal insertion port 141, start lever 135 sensor, stop button 137 sensor, stop button 138 sensor, stop button 139 sensor, settlement button 134 sensor, medal payout sensor for medals paid out from the medal payout device 180, optical sensor for reel 110, optical sensor for reel 111, optical sensor for reel 112, etc.) at each interrupt time.

[0046] When the sensor circuit 320 detects the H level of the start lever sensor, a signal indicating this detection is output to the random number generation circuit 316. The random number generation circuit 316 that receives this signal latches the value at that timing and stores it in a register that stores the random number used for the lottery.

[0047] The medal reception sensor is installed in two places in the internal passage of the medal insertion port 141 and detects the presence or absence of the passage of medals. The start lever 135 sensor is installed in two places inside the start lever 135 and detects the start operation by the player. The stop button 137 sensor, the stop button 138 sensor, and the stop button 139 are installed on each of the stop buttons 137 to 139 and detect the operation of the stop button by the player.

[0048] The bet button 130 sensor, the bet button 131 sensor, and the bet button 132 sensor are installed on each of the medal insertion buttons 130 to 132 and detect the insertion operation when inserting the medals electronically stored in the RAM 308 as the medals for the game. The settlement button 134 sensor is provided on the settlement button 134. When the settlement button 134 is pressed once, the electronically stored medals are settled. The medal payout sensor is a sensor for detecting the medals paid out by the medal payout device 180. Note that each of the above sensors may be a non-contact sensor or a contact sensor.

[0049] The optical sensor of the reel 110, the optical sensor of the reel 111, and the optical sensor of the reel 112 are installed at predetermined positions on the mounting bases of the respective reels 110 to 112 and become at the L level each time the light-shielding piece provided on the reel frame passes through. When the CPU 304 detects this signal, it determines that the reel has made one rotation and resets the rotation position information of the reel to zero.

[0050] The main control unit 300 includes a drive circuit 322 for driving the stepping motors provided in the reel devices 110 to 112, a drive circuit 324 for driving the solenoid provided in the medal selector 170 that sorts the inserted medals, a drive circuit 326 for driving the motor provided in the medal payout device 180, and a drive circuit 328 for driving various lamps 336 (the winning line display lamp 120, the notification lamp 123, the playable game medal lamp 124, the replay lamp 122, the game medal insertion lamp 129, the game start lamp 121, the stored number display 125, the game information display 126, and the payout number display 127).

[0051] Further, an information output circuit 334 (external centralized terminal board 248) is connected to the basic circuit 302, and the main control unit 300 outputs the game information (e.g., game state) of the slot machine 100 to the information input circuit 652 provided in an external hall computer (not shown) etc. via this information output circuit 334.

[0052] Also, the main control unit 300 includes a voltage monitoring circuit 330 that monitors the voltage value of the power supply supplied from a power management unit (not shown) to the main control unit 300. When the voltage value of the power supply is less than a predetermined value (9V in this embodiment), the voltage monitoring circuit 330 outputs a low voltage signal indicating that the voltage has dropped to the basic circuit 302.

[0053] In addition, the main control unit 300 includes an output interface for transmitting commands to the first sub-control unit 400, enabling communication with the first sub-control unit 400. The information communication between the main control unit 300 and the first sub-control unit 400 is one-way communication. The main control unit 300 is configured to be able to transmit signals such as commands to the first sub-control unit 400, but the first sub-control unit 400 is configured not to be able to transmit signals such as commands to the main control unit 300.

[0054] <Sub-control unit> Next, the first sub-control unit 400 of the slot machine 100 will be described. The first sub-control unit 400 receives the control commands transmitted by the main control unit 300 via the input interface, and includes a basic circuit 402 that controls the entire first sub-control unit 400 based on these control commands. This basic circuit 402 is equipped with a CPU 404, a RAM 408 for temporarily storing data, an I / O 410 for controlling the input and output of various devices, and a counter timer 412 for measuring time, number of times, etc. The CPU 404 of the basic circuit 402 operates by inputting a clock signal with a predetermined period output by the crystal oscillator 414 as the system clock. The ROM 406 stores a control program and data for controlling the entire first sub-control unit 400, data for controlling the lighting pattern of the backlight and various displays, etc.

[0055] The CPU 404 transmits the frequency division data stored in a predetermined area of the ROM 406 to the counter timer 412 via the data bus at a predetermined timing. The counter timer 412 determines the interrupt time based on the received frequency division data, and transmits an interrupt request to the CPU 404 at each interrupt time. The CPU 404 controls each IC and each circuit based on the timing of this interrupt request.

[0056] In addition, a sound source IC 418 is provided in the first sub-control unit 400, and speakers 272 and 277 are provided to the sound source IC 418 via the output interface. The sound source IC 418 controls the sound output from the amplifier and the speakers 272 and 277 in response to commands from the CPU 404. An S-ROM (Sound ROM) storing sound data is connected to the sound source IC 418, and the sound data acquired from this ROM is amplified by the amplifier and output from the speakers 272 and 277.

[0057] Also, a drive circuit 422 is provided in the first sub-control unit 400, and various lamps 420 (upper lamp, lower lamp, side lamp 144, title panel 162 lamp, etc.) are connected to the drive circuit 422 via the input and output interface.

[0058] Further, the first sub-control unit 400 is provided with a drive circuit 424 for driving the motor of the shutter 163, and the shutter 163 is provided in the drive circuit 424 via an output interface. This drive circuit 424 outputs a drive signal to a stepping motor (not shown) provided in the shutter 163 in response to a command from the CPU 404.

[0059] Also, the first sub-control unit 400 is provided with a sensor circuit 426. The sensor circuit 426 is connected with a shutter sensor 428 capable of detecting the position of the shutter 163 and a production button sensor 430 capable of detecting a pressing operation of the production button 156 via an input interface. The CPU 404 monitors the states of the shutter sensor 428 and the production button sensor 430 at each interrupt time.

[0060] Also, the CPU 404 transmits and receives signals to and from the second sub-control unit 500 via an output interface. The second sub-control unit 500 performs various controls of the production device 160 including display control of the production image display device 157 (hereinafter also referred to as "liquid crystal display device 157"). Note that the second sub-control unit 500 may be configured by a plurality of control units, such as a control unit that controls the display of the liquid crystal display device 157 and a control unit that controls various production driving devices (for example, a control unit that controls the motor drive of the shutter 163).

[0061] The second sub-control unit 500 receives the control command transmitted by the first sub-control unit 400 via an input interface, and includes a basic circuit 502 that controls the entire second sub-control unit 500 based on this control command. This basic circuit 502 is equipped with a CPU 504, a RAM 508 for temporarily storing data, an I / O 510 for controlling the input and output of various devices, and a counter timer 512 for measuring time, number of times, etc. The CPU 504 of the basic circuit 502 operates by inputting a clock signal with a predetermined period output by the crystal oscillator 514 as a system clock. The ROM 506 stores a control program and data for controlling the entire second sub-control unit 500, data for image display, etc.

[0062] The CPU 504 transmits the data for frequency division stored in a predetermined area of the ROM 506 to the counter timer 512 via the data bus at a predetermined timing. The counter timer 512 determines the interrupt time based on the received data for frequency division, and transmits an interrupt request to the CPU 504 at each interrupt time. The CPU 504 controls each IC and each circuit based on the timing of this interrupt request.

[0063] Also, a VDP 516 (video display processor) is provided in the second sub-control unit 500, and the ROM 506 and the VRAM 518 are connected to the VDP 516 via a bus. The VDP 516 reads out the image data and the like stored in the ROM 506 based on the signal from the CPU 504, generates a display image using the work area of the VRAM 518, and displays the image on the effect image display device 157.

[0064] <Symbol Arrangement> Next, with reference to FIG. 4, the symbol arrangements applied to each of the above-described reels 110 to 112 will be described. Note that FIG. 4 is a diagram showing a planar development of the symbol arrangements applied to each reel (left reel 110, middle reel 111, right reel 112).

[0065] A plurality of types (nine types in the present embodiment) of symbols shown on the right side of the figure are arranged on each of the reels 110 to 112 by a predetermined number of frames (20 frames numbered 0 to 19 in the present embodiment). Also, the numbers 0 to 19 shown at the left end of the figure are numbers indicating the arrangement positions of the symbols on each of the reels 110 to 112. For example, in the present embodiment, a "watermelon symbol" is arranged in the 0th frame of the left reel 110, a "bell symbol" is arranged in the 1st frame of the middle reel 111, and a "replay symbol" is arranged in the 0th frame of the right reel 112.

[0066] <Types of Winning Combinations> Next, with reference to FIG. 5, the types of winning combinations of the slot machine 100 will be described. Note that FIG. 5 is a diagram showing the types of winning combinations, the names of the condition devices, the symbol combinations corresponding to each winning combination, the payout numbers, and remarks.

[0067] The winning combinations of the slot machine 100 include special combinations (Special Combination 1, Special Combination 2) and general combinations (Re - play Combination 1 - 3, Minor Combination 1 - Minor Combination 5), etc. Note that the types of winning combinations are not limited to these combinations and can be arbitrarily adopted. In FIG. 5, the illustration of some winning combinations is omitted.

[0068] <Type of winning combination / Special combination> Among the winning combinations in this embodiment, Special Combination 1 and Special Combination 2 are combinations that shift the player to a special game state where a predetermined profit is given. Also, the Re - play Combination is a combination that enables re - play without inserting new medals (a combination to which re - play is given). These winning combinations may be called "active combinations".

[0069] In addition, the "winning" in this embodiment includes the case where a combination of symbols of an active combination without medal payout (without medal dispensing) is displayed on the winning line. For example, winning for Special Combination 1, Special Combination 2, and the Re - play Combination is included.

[0070] Special Combination 1 and Special Combination 2 are winning combinations where the game state shifts to the Special Combination 1·2 internal winning state (RT3) by internal winning and shifts to the Special Combination 1·2 game state (RT4) by winning. Note that when more than a specified number of medals (for example, 200 medals) are dispensed in the Special Combination 1·2 game state (RT4), the game state shifts to the re - play low probability state (RT1). Each game state (RT1 - RT4) will be described later.

[0071] The symbol combination corresponding to Special Combination 1 (BB) is "Seven 1 symbol - Seven 1 symbol - Seven 1 symbol" or "Seven 2 symbol - Seven 2 symbol - Seven 2 symbol", and the symbol combination corresponding to Special Combination 2 (RB) is "BAR symbol - BAR symbol - BAR symbol".

[0072] When winning internally for Special Role 1 or Special Role 2, the special role internal winning flag corresponding to the internally won role is set to on (stored in a predetermined area of the RAM 308 in the main control unit 300). This flag remains on until winning for the internally won role, and in subsequent games, it becomes a state where it is easier to win for the internally won role. That is, in a game where there is an internal win for Special Role 1 or Special Role 2, even if there is no win for that special role, in subsequent games, it will be in a state of having an internal win for that special role, and the symbol combinations corresponding to the special role will be in a state where they are likely to win together.

[0073] <Type of winning role / Re - game role> Re - game roles 1 to 3 are winning roles (active roles) that can play the game without inserting medals (game media) in the next game when winning, and no medal payout is made. The corresponding symbol combinations are as shown in FIG. 5.

[0074] Note that the re - game role only needs to be a role that allows the player to play the next game without inserting medals. Therefore, for example, when winning for the re - game role, it may be such that medals are automatically inserted in the next game (the number of inserted medals is reset in the medal insertion number storage area), or the medals inserted in the game where the re - game role is won can be carried over and used directly in the next game. The special replay described later is also one of the re - game roles.

[0075] <Type of winning role / Small role> Small roles 1 to 5 are winning roles for which a predetermined number of medals are paid out (there is a payout number) when winning.

[0076] Small role 1 (Watermelon) is a winning role for which, when winning, the symbol combination of "Watermelon symbol - Watermelon symbol - Watermelon symbol" stops and is displayed on the winning line L1, and 5 medals are paid out.

[0077] Minor winning combination 2 (Cherry) is a winning combination where, upon winning, the symbol combination of "Cherry symbol - ANY - ANY" stops and is displayed on the winning line L1, and two medals are paid out. Note that for the symbol combination of "Cherry symbol - ANY - ANY", it only requires that the symbol on the left reel 110 is the "Cherry symbol", and the symbols on the middle reel 111 and the right reel 112 can be any symbol.

[0078] Hereafter, these minor winning combinations 1 (Watermelon) and minor winning combination 2 (Cherry) may be collectively referred to as "rare winning combinations". However, the rare winning combinations are not limited to these winning combinations. It can be either one of these winning combinations or other winning combinations can be added.

[0079] Note that when winning a rare winning combination in the AT state described later, a lottery is executed to increase the number of games or sets (to make it easier to win the lottery). On the other hand, even if winning a rare winning combination in the ED state, no lottery is executed to increase the number of games or sets.

[0080] Minor winning combination 3 (Order Bell) is composed of six types of winning combinations from minor winning combination 3a to minor winning combination 3f. In this example, by lottery, with a predetermined probability (about 1 / 6 in this example, common for all settings), it internally wins one of the winning combinations from minor winning combination 3a to minor winning combination 3f, and when the operation order (pressing order) of the stop buttons 137 to 139 for the stop operation matches the corresponding winning combination of the internally won winning combination, it wins, and 12 medals are paid out. That is, minor winning combination 3 (Order Bell) is a result of the operation mode (winning combination) with different degrees of advantage depending on the operation mode of the stop buttons (stop buttons) 137 to 139.

[0081] Minor winning combination 4 (Common Bell) is a winning combination where, regardless of the operation order (pressing order) and operation timing of the stop buttons 137 to 139, the symbol combination of "Bell symbol - Bell symbol - Bell symbol" stops and is displayed on the winning line L1, and 12 medals are paid out.

[0082] The small combination 5 (a single combination) is a winning combination where, regardless of the operation order (pressing order) or operation timing of the stop operation by the stop buttons 137 to 139, the symbol combination of "Replay symbol - Replay symbol - Blank 1 symbol" is stopped and displayed on the winning line L1, and one medal is paid out.

[0083] <Types of RT-based game states> Next, the types and transitions of RT-based game states in the slot machine 100 will be described.

[0084] <Replay low probability state (RT1)> The replay low probability state (RT1) is the default RT-based game state (hereinafter also referred to as the "normal game state") set first immediately after the power-on of the slot machine 100, etc., and is a game state that is relatively disadvantageous for the player compared to other game states.

[0085] In this example, in this replay low probability state (RT1), when winning the replay combination 2 (promotion replay 1) or the replay combination 3 (promotion replay 2), it transitions to the replay high probability state (RT2) described later. Also, in this replay low probability state (RT1), when internally winning the special combination 1 or the special combination 2, it transitions to the special combination 1·2 internal winning state (RT3) described later.

[0086] <Replay high probability state (RT2)> The replay high probability state is a game state where the internal winning probability of the replay is higher than that of the replay low probability state (RT1).

[0087] In this example, in this replay high probability state (RT2), when internally winning the special combination 1 or the special combination 2, it transitions to the special combination 1·2 internal winning state (RT3) described later.

[0088] <Special combination 1·2 internal winning state (RT3)> The internal winning state (RT3) of special role 1 or 2 is a state in which the internal winning flag corresponding to special role 1 or special role 2 is set to on. It is a gaming state in which, when a player performs a stop operation at a predetermined timing, a symbol combination corresponding to the special role corresponding to this flag can be displayed.

[0089] In this example, in this internal winning state (RT3) of special role 1 or 2, when winning a prize in special role 1 or special role 2, it transitions to the special gaming state (RT4) described later.

[0090] <Special gaming state (RT4)> The special gaming state (RT4) is the most advantageous gaming state for the player among all gaming states. In this example, in the special gaming state (RT4), when a specified number of medals (for example, 200 medals) are paid out, it transitions to the low-probability replay state (RT1).

[0091] Note that in this example, the end condition of the special gaming state (RT4) is not particularly limited. For example, it may be when winning an internal prize in a specified role, when there are winnings a specified number of times (for example, 8 times), or when a specified number of games (for example, 6 times) are played.

[0092] <Transition of AT-based gaming states> Next, the AT-based gaming states will be described.

[0093] The AT-based gaming states are roughly classified into a low-navigation state and a high-navigation state. The low-navigation state is a state in which the probability of executing the operation navigation is low, and is also referred to as the normal mode, non-advantageous section, or normal section. The high-navigation state is a state in which the probability of executing the operation navigation is higher than that of the low-navigation state, and is also referred to as the AT mode and advantageous section.

[0094] Here, the operation navigation refers to an effect that notifies the stop operation modes (for example, the correct operation order and the timing of the stop operation) of the stop buttons 137 to 139 in order to acquire medals or maintain an advantageous gaming state. For example, an effect that notifies the correct operation order of the pressing order role (for example, minor role 3 (pressing order bell LCR)) (for example, an effect that displays the characters "left → middle → right") etc. are applicable.

[0095] When a stop operation is performed according to the operation content of the operation navigator, a result advantageous to the player is brought about. Therefore, the high-navi state is a gaming state more advantageous to the player than the low-navi state. Here, "advantageous" specifically means that, with respect to the total number of gaming media used by the player as the bet amount on the gaming table when playing games for a predetermined period, the ratio of the total number of gaming media paid out by the gaming table, that is, the so-called payout rate (payout rate of balls) is advantageous.

[0096] In this example, the low-navi state is a state where the execution probability of the operation navigator is low, and the high-navi state is a state where the execution probability of the operation navigator is higher than that of the low-navi state. However, the low-navi state may be a state where the operation navigator is not executed, and the high-navi state may be a state where the operation navigator is executed.

[0097] Each gaming state of the AT system is subdivided and managed, and this is called an effect state. Specifically, the effect state of the low-navi state includes a normal gaming state, and the effect states of the high-navi state include a normal state, a confirmation notice state, a judgment state, a pull-back state, an AT1 state, an AT2 state, and an ED (ending) state. Note that the AT1 state, the AT2 state, and the ED state are, in principle, states where the payout of balls increases.

[0098] In this embodiment, when a certain condition is satisfied in the normal gaming state of the low-navi state (for example, when winning a winning combination other than a losing combination), it shifts to the normal state of the high-navi state. After that, for example, it shifts in the order of the confirmation notice state → the AT1 state → the judgment state, and there are routes that shift from this judgment state to the normal gaming state or the AT2 state via the pull-back state, and routes that shift directly from the judgment state to the AT2 state, etc.

[0099] The AT state (AT1 state, AT2 state) is a state in which AT games can be played a predetermined number of times (for example, 30 games in one set), and is a state more advantageous to the player than the normal gaming state of the low-navi state or the normal state of the high-navi state.

[0100] In this AT game, at the start of the AT game, a set continuation lottery (for example, a lottery with a winning probability of 1 / 4) to determine whether to continue the AT game is executed. If the player wins this set continuation lottery, an additional predetermined number of AT games (in this example, 30 games per set) are awarded, and the AT state is extended. Also, when the transition condition to the normal game state is satisfied in the AT state (in this example, when all the games in the AT state are completed), the game state transitions to the normal game state starting from the next game.

[0101] Also, when the remaining games in the high-navigation state become equal to or less than a predetermined number of games (for example, 20 games), the game state transitions to the ED state. In this ED state, an ED (ending) effect indicating the end of the high-navigation state is executed.

[0102] Note that the transition condition to the ED state is not limited to the remaining games in the high-navigation state becoming equal to or less than a predetermined number of games (for example, 20 games). For example, the predetermined number of games can be more than or less than 20 games, or it can also be based on the condition "acquired number of coins + expected difference in acquired coins > 2000".

[0103] <Main control unit main process> First, with reference to FIG. 6, the main control unit main process executed by the CPU 304 of the main control unit 300 will be described. Note that this figure is a flowchart showing the flow of the main control unit main process.

[0104] As described above, the main control unit 300 is provided with a startup signal output circuit (reset signal output circuit) 338 that outputs a startup signal (reset signal) when the power is turned on. The CPU 304 of the basic circuit 302 that receives this startup signal starts reset by a reset interrupt and executes the main control unit main process shown in FIG. 6 according to the control program stored in advance in the ROM 306.

[0105] When the power is turned on, first, various initial settings are performed in step S101. In this initial setting, the stack initial value is set to the stack pointer (SP) of the CPU 304, the interrupt prohibition is set, the initial setting of the I / O 310, the initial setting of various variables stored in the RAM 308, the operation permission and the initial value are set to the WDT 314, etc.

[0106] In step S102, a bet number setting / start operation reception process is executed. Here, the presence or absence of medal insertion is checked, and preparation for transmitting an insertion command indicating that a medal has been inserted is performed. In addition, when winning a prize in the replay combination in the previous game, since the process of inserting the same number of medals as the number of medals inserted in the previous game is performed, it is not necessary for the player to insert medals. Also, it is checked whether the start lever 135 has been operated. If the start lever 135 has been operated, the process proceeds to step S103.

[0107] In step S103, a winning line determination process for determining the number of inserted medals and determining a valid winning line is performed.

[0108] In step S104, a random number generated by the random number generation circuit 316 is acquired, and an internal lottery process for winning combinations is performed. In the internal lottery process for winning combinations, according to the current game state, the winning combination lottery table stored in the ROM 306 is read out, and an internal lottery is performed using this and the acquired random number value, and preparation for transmitting an internal lottery command indicating the result of this internal lottery to the first sub-control unit 400 is performed. As a result of the internal lottery, if a winning combination (including an active combination) is internally won, the flag of that winning combination is turned on.

[0109] In step S105, a reel stop data selection process for selecting reel stop data based on the internal lottery result of the internal lottery process for winning combinations is performed. Note that this reel stop data is stored in the ROM 306 of the main control unit 300. Also, in step S105, preparation for transmitting a reel stop data command including information regarding the selected reel stop data to the first sub-control unit 400 is performed.

[0110] In step S106, based on the start lever operation, the effect state control process related to the control of the AT-based gaming state described above is executed. In step S107, an effect process is executed. In this effect process, control of various effects and the like is performed.

[0111] In step S108, the reel rotation start process is executed to start the rotation of all the reels 110 to 112.

[0112] In step S109, a reel stop control process is performed. In the reel stop control process, reception of the stop buttons 137 to 139 becomes possible. When any of the stop buttons is pressed, in order to stop the reel corresponding to the pressed stop button, the stop table of the reel stop data is referred to, and one of the reels 110 to 112 is stopped according to the number of drawing commands set in the stop table. When all the reels 110 to 112 stop, the process proceeds to step S110. In this step S109, for each stop operation, preparations are made to transmit a stop button reception command related to the pressed stop button 137 to 139 (specifically, for the first stop operation, the stop button reception 1 command, for the second stop operation, the stop button reception 2 command, and for the third stop operation, the stop button reception 3 command) to the first sub-control unit 400. For the stop of each reel, preparations are made to transmit a reel stop command related to the stop position of the reel (specifically, for the first stopped reel, the reel stop 1 command, for the second stop operation, the reel stop 2 command, and for the third stop operation, the reel stop 3 command) to the first sub-control unit 400.

[0113] In step S110, a winning determination process for performing a winning determination is performed. In this winning determination process, when a symbol combination corresponding to any winning combination is displayed on the activated winning line 114, it is determined that a win has occurred for that winning combination. For example, if "bell - bell - bell" is aligned on the activated winning line, it is determined that a win has occurred for the small winning combination 3 (bell). In this step S110, preparations are also made to transmit a winning determination command indicating the result of the winning determination to the first sub-control unit 400.

[0114] In step S111, medal awarding processing is performed. In the medal awarding processing, if a winning combination with a payout is won, medals corresponding to the number of that winning combination are paid out according to the number of winning lines.

[0115] In step S112, game state control processing is performed. In the game state control processing, processing related to the transition of each RT-based game state is performed, and the game state is transitioned due to the establishment of their start conditions or end conditions. Also, preparations are made to transmit a game state command including information indicating the current RT-based game state.

[0116] In step S113, effect state control processing related to the control of the above-described AT-based game state is executed. In step S114, high navigation state end processing related to the end of the high navigation state is executed.

[0117] Thus, one game ends. Thereafter, the game proceeds by returning to step S102 and repeating the above-described processing. Note that the various commands prepared in each of the above steps are transmitted in the command setting transmission processing (step S206 in FIG. 7) of the main control unit timer interrupt processing described later.

[0118] <Main control unit timer interrupt processing> Next, with reference to FIG. 7, the main control unit timer interrupt processing executed by the CPU 304 of the main control unit 300 will be described. Note that this figure is a flowchart showing the flow of the main control unit timer interrupt processing.

[0119] The main control unit 300 includes a counter timer 312 that generates a timer interrupt signal at a predetermined period (once every approximately 2 ms in this embodiment), and the main control unit timer interrupt processing is started at the predetermined period triggered by this timer interrupt signal.

[0120] In step S201, timer interrupt start processing is performed. In this timer interrupt start processing, processing such as temporarily saving the values of each register of the CPU 304 in the stack area is performed.

[0121] In step S202, the watchdog timer 314 is restarted periodically (once every approximately 2 ms, which is the period of the main control unit timer interrupt in this embodiment) so that the count value of the WDT 314 does not exceed the initial setting value (32.8 ms in this embodiment) and no WDT interrupt occurs (so as not to detect an abnormality in the process).

[0122] In step S203, an input port status update process is performed. In this input port status update process, detection signals from the sensor circuits 320 of various sensors 318 are input via the input ports of the I / O 310, the presence or absence of the detection signals is monitored, and the signals are stored in the signal status storage areas provided in the RAM 308 partitioned for each of the various sensors 318.

[0123] In step S204, various game processes are executed, and processes according to the interrupt status are executed. In step S2005, a timer update process is performed. More specifically, various timers are updated in their respective time units.

[0124] In step S206, a command setting transmission process is performed, and various commands prepared for transmission are transmitted to the first sub-control unit 400. In the first sub-control unit 400, depending on the command type included in the received output schedule information, it becomes possible to determine the effect control according to the change in the game control in the main control unit 300, and based on the information of the command data included in the output schedule information, it becomes possible to determine the content of the effect control.

[0125] In step S207, an external output signal setting process is performed. In this external output signal setting process, the game information stored in the RAM 308 is output to the information input circuit 652 separate from the slot machine 100 via the information output circuit 334.

[0126] In step S208, device monitoring processing is performed. In this device monitoring processing, first, the signal states of various sensors 318 stored in the signal state storage area in step S203 are read out, the presence or absence of errors related to medal insertion abnormalities and medal payout abnormalities is monitored, and when an error is detected, error processing (not shown) is executed. Further, according to the current gaming state, settings are made for the medal selector 170 (medal blocker in which the solenoid provided in the medal selector 170 operates), various lamps 339, and various 7-segment (SEG) displays.

[0127] In step S209, it is monitored whether the low-voltage signal is on. When the low-voltage signal is on (when power-off is detected), the process proceeds to step S211, and when the low-voltage signal is off (when power-off is not detected), the process proceeds to step S210.

[0128] In step S210, various processes for ending the timer interrupt end processing are performed. In this timer interrupt end processing, the values of the respective registers temporarily saved in step S2001 are set to the original respective registers, etc. Thereafter, the process returns to the main control unit main processing shown in FIG. 7.

[0129] On the other hand, in step S211, specific variables and stack pointers for returning to the state at the time of power-off at the time of power restoration are saved as restoration data in a predetermined area of the RAM 308, power-off processing such as initialization of the input / output port is performed, and thereafter, the process returns to the main control unit main processing shown in FIG. 7.

[0130] <Processing of the First Sub-Control Unit> Next, with reference to FIG. 8, the processing of the first sub-control unit 400 will be described. Note that FIG. 8(a) is a flowchart of the main processing executed by the CPU 404 of the first sub-control unit 400. FIG. 8(b) is a flowchart of the command reception interrupt processing of the first sub-control unit 400. FIG. 8(c) is a flowchart of the timer interrupt processing of the first sub-control unit 400.

[0131] First, with reference to FIG. 8(a), the main processing of the first sub-control unit 400 will be described.

[0132] When the power is turned on, first, the initialization process is executed in step S301. In this initialization process, initial settings of input / output ports, initialization processes of storage areas in the RAM 408, etc. are performed. In this process, an area for storing internal winning information, which is information representing the result of internal winning, and an area for storing RT update information, which is information representing the game state, are respectively provided in the RAM 408.

[0133] In step S302, it is determined whether the timer variable is 10 or more, and this process is repeated until the timer variable becomes 10. When the timer variable becomes 10 or more, the process proceeds to the process of step S3003. In step S303, 0 is assigned to the timer variable. In step S304, command processing, which is processing corresponding to each command received from the main control unit 300, is executed.

[0134] In step S305, effect control processing is performed. Here, preparation for the effect is carried out according to the effect reservation information in the effect reservation area provided in the RAM 408. This preparation includes, for example, processing such as reading effect data from the ROM 406, and when updating of the effect data is necessary, it includes performing the update process of the effect data.

[0135] In step S306, sound control processing is performed based on the processing result of step S305. For example, when there is an instruction to the sound source IC 418 in the effect data read in step S305, this instruction is output to the sound source IC 418. In step S307, lamp control processing is performed based on the processing result of step S305. For example, when there is an instruction to various lamps 420 in the effect data read in step S305, this instruction is output to the drive circuit 422.

[0136] In step S308, shutter control processing is performed based on the processing result of step S3005. For example, if there is an instruction for shutter 163 in the production data read in step S305, this instruction is output to the drive circuit 424. In step S309, information output processing for performing a setting to transmit a command to the second sub-control unit 500 based on the processing result of step S305 is performed. For example, if there is a command to be transmitted to the second sub-control unit 500 in the production data read in step S305, a setting to output this control command is made, and the process returns to step S302.

[0137] Next, with reference to FIG. 8(b), the command reception interrupt processing of the first sub-control unit 400 will be described. This command reception interrupt processing is a process executed when the first sub-control unit 400 detects a strobe signal output by the main control unit 300. In step S401 of the command reception interrupt processing, the command output by the main control unit 300 is stored as an unprocessed command in the command storage area provided in the RAM 408.

[0138] Next, with reference to FIG. 8(c), the first sub-control unit timer interrupt processing executed by the CPU 404 of the first sub-control unit 400 will be described. The first sub-control unit 400 includes a hardware timer that generates a timer interrupt at a predetermined period (once every 2 ms in this embodiment), and based on this timer interrupt, the timer interrupt processing is executed at a predetermined period.

[0139] In step S501, 1 is added to the value in the timer variable storage area of the RAM 408 described in step S302 in the first sub-control unit main processing shown in FIG. 8(a), and the result is stored in the original timer variable storage area. Therefore, in step S302, it is determined that the value of the timer variable is 10 or more every 20 ms (2 ms × 10). In step S502, transmission of a command to the second sub-control unit 500 set in step S309, update processing of production random number values, and the like are performed.

[0140] <Processing of the second sub-control unit> Next, the processing of the second sub-control unit 500 will be described with reference to FIG. 9. Note that FIG. 9(a) is a flowchart of the main processing executed by the CPU 504 of the second sub-control unit 500. FIG. 9(b) is a flowchart of the command reception interrupt processing of the second sub-control unit 500. FIG. 9(c) is a flowchart of the timer interrupt processing of the second sub-control unit 500. FIG. 9(d) is a flowchart of the image control processing of the second sub-control unit 500.

[0141] First, in step S601 of FIG. 9(a), various initial settings are performed. When the power is turned on, first, the initialization process is executed in step S601. In this initialization process, initial settings of input / output ports, initialization processes of storage areas in the RAM 508, initialization processes of storage areas in the VRAM 536, and the like are performed.

[0142] In step S602, it is determined whether the timer variable is 10 or more. This process is repeated until the timer variable becomes 10. When the timer variable becomes 10 or more, the process proceeds to the process of step S603. In step S4003, 0 is assigned to the timer variable. In step S604, command processing is performed. In the command processing, the CPU 504 of the second sub-control unit 500 determines whether a command has been received from the CPU 404 of the first sub-control unit 400.

[0143] In step S605, effect control processing is performed. Specifically, when there is a new command in step S604, the process corresponding to this command is performed. For example, a process of reading out effect data for performing image control related to the background image from the ROM 506 is executed. Also, processes such as reading out other effect data from the ROM 506 are performed, and when the update of the effect data is necessary, the update process of the effect data is included.

[0144] In step S606, image control processing (details will be described later) is performed based on the processing result of step S605. For example, when there is an image control instruction in the effect data read in step S605, image control corresponding to this instruction is performed. For example, image control regarding the display image (notification image, background image) is executed. When this image control processing ends, the process returns to step S602.

[0145] Next, with reference to FIG. 9(b), the command reception interrupt processing of the second sub-control unit 500 will be described. This command reception interrupt processing is a process executed when the second sub-control unit 500 detects a strobe signal output by the first sub-control unit 400.

[0146] In step S701 of the command reception interrupt processing, the command output by the first sub-control unit 400 is stored as an unprocessed command in the command storage area provided in the RAM 508.

[0147] Next, with reference to FIG. 9(c), the second sub-control unit timer interrupt processing executed by the CPU 504 of the second sub-control unit 500 will be described. The second sub-control unit 500 includes a hardware timer that generates a timer interrupt at a predetermined period (once every 2 ms in this embodiment), and based on this timer interrupt, the timer interrupt processing is executed at a predetermined period.

[0148] In step S801, 1 is added to the value of the timer variable storage area of the RAM 508 described in step S602 in the second sub-control unit main processing shown in FIG. 9(a), and the result is stored in the original timer variable storage area. Therefore, in step S602, it is determined that the value of the timer variable is 10 or more every 20 ms (2 ms × 10). In step S802, update processing of the random number value for effect, etc. is performed.

[0149] Next, with reference to FIG. 9(d), the image control processing in step S606 in the main processing of the second sub-control unit 500 will be described. This figure is a diagram showing a flowchart indicating the flow of the image control processing.

[0150] In step S901, an instruction to transfer image data is issued. Here, the CPU 504 first swaps the designations of the drawing areas of display areas A and B in the VRAM 536. As a result, one frame of the image stored in the display area not designated as the drawing area is displayed on the effect image display device 157. Next, the CPU 504 sets, in the attribute register of the VDP 534, the ROM coordinates (transfer source address of the ROM 506), VRAM coordinates (transfer destination address of the VRAM 536), etc. based on the position information table and the like, and then sets an instruction to start transferring the image data from the ROM 506 to the VRAM 536. The VDP 534 transfers the image data from the ROM 506 to the VRAM 536 based on the instruction set in the attribute register. After that, the VDP 534 outputs a transfer end interrupt signal to the CPU 504.

[0151] In step S902, it is determined whether a transfer end interrupt signal from the VDP 534 has been input. If the transfer end interrupt signal has been input, the process proceeds to step S903. Otherwise, it waits for the transfer end interrupt signal to be input.

[0152] In step S903, parameter settings are performed based on the effect scenario configuration table, attribute data, etc. Here, the CPU 504 instructs the VDP 534 with information on the image data constituting the display image (coordinate axes of the VRAM 536, image size, VRAM coordinates (placement coordinates), transparency, etc.) in order to form a display image in display area A or B of the VRAM 536 based on the image data transferred to the VRAM 536 in step S901. The VDP 534 performs parameter settings according to the attributes based on the instruction stored in the attribute register.

[0153] In step S904, a drawing instruction is issued. In this drawing instruction, the CPU 504 instructs the VDP 534 to start drawing an image. The VDP 534 starts drawing the image in the frame buffer according to the instruction of the CPU 504.

[0154] In step S905, it is determined whether a generation end interrupt signal from the VDP534 based on the end of image drawing has been input. If the generation end interrupt signal has been input, the process proceeds to step S906. Otherwise, it waits for the generation end interrupt signal to be input.

[0155] In step S906, a scene display counter that is set in a predetermined area of the RAM508 and counts which scene's image has been generated is incremented (+1), and the process ends.

[0156] <Speaker mounting structure> Next, the speaker mounting structure in the slot machine 100 will be described.

[0157] FIG. 10 is a front view showing the slot machine 100 with the front door 102 opened. The main body 101 is a box body surrounded by an upper surface plate 261, left and right side plates 260, a lower surface plate 264, and a rear surface plate 242, and is open at the front. Inside the main body 101, at a position that does not overlap with the ventilation opening 249 provided at the upper part of the rear surface plate 242, a main control board storage case 210 that houses the main control board inside is arranged. Below this main control board storage case 210, three reels 110 to 112 are arranged. On the side of the main control board storage case 210 and the reels 110 to 112, that is, on the left side plate 260 facing it, a sub-control board storage case 220 that houses the sub-control board inside is provided. Also, on the right side plate 260 facing it, an external centralized terminal board 248 that is connected to the main control board and outputs the information of the slot machine 100 to an external device is attached.

[0158] And, on the lower surface plate 264, a medal payout device 180 (a device for paying out medals accumulated in a bucket) is disposed. Above this medal payout device 180, that is, below the reels 110 to 112, a power supply device 252 having a power supply board is disposed, and a power switch 244 is disposed on the front surface of the power supply device 252. The power supply device 252 converts the AC power supplied from the outside to the slot machine 100 into DC power, converts it to a predetermined voltage, and supplies it to each control unit such as the main control unit 300, sub-control units 400, 500, etc. and each device described later. Further, even after the external power supply is cut off, it is provided with a power storage circuit (for example, a capacitor) for supplying power to a predetermined component (for example, the RAM 308 of the main control unit 300, etc.) for a predetermined period (for example, 10 days).

[0159] On the right side of the medal payout device 180, a medal auxiliary storage 240 is disposed, and an overflow terminal is disposed behind this (not shown in the figure). The power supply device 252 is provided with a power cord connection part for connecting the power cord 264, and the power cord 264 connected here extends to the outside through a power cord hole 262 opened in the back surface plate 242 of the main body 101.

[0160] The front door 102 is hinged to the side surface plate 260 on the left side of the main body 101 via a hinge device 276. Above the symbol display window 113, an effect device 160, and an effect control board (not shown in the figure) for controlling this effect device 160, and an upper speaker 272 are provided. Below the symbol display window 113, a medal selector 170 for sorting the inserted medals, a passage 266 through which the medals pass when the medal selector 170 drops an illegal medal or the like onto the medal tray 161, etc. are provided. Further, a speaker unit 600 is provided at a position corresponding to the sound hole 181.

[0161] <Speaker mounting structure / Configuration of speaker unit> Next, with reference to FIG. 11, the configuration of the speaker unit 600 will be described. FIG. 11 is an exploded perspective view of the speaker unit 600.

[0162] As described with reference to FIG. 10, the speaker unit 600 is screwed and installed at the lower left side of the back surface of the front door 102. As shown in FIG. 11, it is composed of a speaker 610 (first member) for low - frequency output having a large diaphragm, and a back cover 620 (second member) covering the back side of the speaker 610, and is attached to a speaker pedestal portion 630 (base) formed on the back surface of the front door 102.

[0163] <Speaker mounting structure / Speaker pedestal> The speaker pedestal portion 630 (base) includes an outer frame portion 631 formed to match the substantially rectangular outer shape of the flange 614 of the speaker 610, mounting sleeves 632 formed at the four inner corners of the outer frame portion 631 for screwing the speaker 610 and the back cover 620 to the front door 102, and a circular inner frame portion 633 with which the front - side peripheral portion of the frame 612 of the speaker 610 abuts.

[0164] Inside the inner frame portion 633 of the speaker pedestal 630, sound holes 161 composed of a plurality of holes are formed, and the low - frequency sound output from the speaker 610 is output to the outside of the slot machine 100 through these sound holes 161.

[0165] <Speaker mounting structure / Speaker, back cover> Next, with reference to FIGS. 12 and 13, the speaker 610 and the back cover 620 constituting the speaker unit 600 will be described in detail.

[0166] FIG. 12(a) is a side view of the back cover 620, and FIG. 12(b) is a top view of the back cover 620. Also, FIG. 12(c) is a side view of the speaker 610, and FIG. 12(d) is a top view of the speaker 610. Further, FIG. 13(a) is a top view of the speaker unit 600, and FIG. 13(b) is a cross - sectional view taken along the A - A line of the speaker unit 600 shown in FIG. 13(a).

[0167] <Speaker mounting structure / Speaker> The speaker 610 (first member) is a cone-type dynamic speaker, which generally consists of a voice coil and a magnet as shown in FIGS. 12(c) and 13(b), and includes an electromagnetic circuit 611 that vibrates a diaphragm 613 (to be described later) in response to an electrical signal, a frame 612 that supports the electromagnetic circuit 611, a diaphragm 613 that vibrates to generate sound, and a flange 614 to which the diaphragm 613 is fixedly attached so as to be vibratable.

[0168] The frame 612 is a cylindrical metal ring frame that expands slightly forward, and a plurality of openings 615 (see FIG. 11) for discharging the air around the diaphragm 613 are formed along the circumferential direction on the side surface. That is, on the side surface of the frame 612, a plurality of openings 615 are formed along the circumferential direction, and between the openings 615, columns 612a are formed along the front-rear direction. The diaphragm 613 is formed in a cone shape that opens forward using a flexible material such as paper, for example.

[0169] As shown in FIG. 12(d), dedicated screw holes 616a (first through holes) for screwing the speaker 610 to the front door 102 are formed at the upper left corner and the lower right corner of the flange 614, respectively. Also, common screw holes 616b (second through holes) for screwing the speaker 610 and the rear cover 620 to the front door 102 are formed at the lower left corner and the upper right corner of the flange 614, respectively.

[0170] In this example, the two dedicated screw holes 616a (first through holes) are arranged diagonally (at the vertices of the diagonal ends) at the upper left corner and the lower right corner on the outer edge of the flange 614, and the two common screw holes 616b (second through holes) are arranged diagonally (at the vertices of the diagonal ends) at the lower left corner and the upper right corner on the outer edge of the flange 614. Thereby, the dedicated screw holes 616a (first through holes) and the common screw holes 616b (second through holes) are alternately arranged at a predetermined interval in the outer circumferential direction of the flange 614.

[0171] According to this example, when the speaker 610 (first member) is fixed to the front door 102 (base) using the dedicated screw hole 616a (first through hole) for positioning, or when only the back cover 620 (second member) is removed from the front door 102 (base), the speaker 610 (first member) can be stably fixed, enhancing safety and workability.

[0172] Note that the arrangement positions and numbers of the "first through hole" and "second through hole" according to the present invention are not limited to this example. For example, one dedicated screw hole 616a (first through hole) may be arranged only at either the upper left corner or the lower right corner on the outer edge of the flange 614, and one shared screw hole 616b (second through hole) may be arranged only at either the lower left corner or the upper right corner on the outer edge of the flange 614. Also, three or more dedicated screw holes 616a (first through holes) may be arranged on the outer edge of the flange 614, and three or more shared screw holes 616b (second through holes) may be arranged on the outer edge of the flange 614, and the number of dedicated screw holes 616a (first through holes) and shared screw holes 616b (second through holes) does not have to be the same.

[0173] The flange 614 also functions as a member that supports the diaphragm 613 so as to be vibratable. On the back surface of the flange 614, the outer edge 613a of the diaphragm 613 (see Fig. 13(b)) that appears on the back side of the flange 614 through the opening of the flange 614 is fixed. And the thickness of the flange 614 is designed to be higher than the maximum vibration width of the diaphragm 613 so as not to inhibit the vibration of the diaphragm 613.

[0174] Note that in this example, the back cover 620 is arranged on the back surface of the speaker 610. However, in the state where the back cover 620 is fixed to the speaker pedestal portion 630 of the front door 102, the minimum distance between the back cover 620 and the front door 102 is also designed to be longer than the thickness of the flange 614 so as not to inhibit the vibration of the diaphragm 613.

[0175] <Speaker mounting structure / Back cover> The back cover 620 (second member) is a resin member that houses most of the speaker 610 inside. Specifically, the back cover 620 has a circular opening 621 formed on the back side to expose the rear end (a part of the electromagnetic circuit 611) of the speaker 610, and is provided with a stepped cylindrical side wall portion 622 that expands slightly forward.

[0176] Also, as shown in Fig. 12(b), the back cover 620 includes two protruding pieces 623a that protrude circumferentially outward from the front end of the side wall portion 622, and two protruding pieces 623b with screw holes. Screw holes 624 (third through holes) for screwing the speaker 610 and the back cover 620 together and fastening them to the front door 102 are respectively formed in the protruding pieces 623b with screw holes arranged diagonally (at the vertices of the diagonal ends) at the lower left corner and the upper right corner.

[0177] With such a configuration, the common screw hole 616b (second through hole) in the flange 614 of the speaker 610 and the screw hole 624 (third through hole) in the protruding piece 623b with a screw hole of the back cover 620 are overlapped with the holes of the mounting sleeve 632 of the speaker pedestal portion 630 (base) and fastened with screws (fixing means), so that the speaker unit 600 is integrated and fixed to the back surface of the front door 102. The mounting method of the speaker unit 600 will be described later.

[0178] Also, the protruding pieces 623a arranged diagonally (at the vertices of the diagonal ends) at the upper left corner and the lower right corner of the back cover 620 have a thicker shape than the protruding pieces 623b with screw holes, and a screw head accommodation space 623a1 capable of accommodating the head (screw head) of a screw (fixing means) is formed inside.

[0179] With such a configuration, by aligning the dedicated screw hole 616a (first through hole) in the flange 614 of the speaker 610 with the hole in the mounting sleeve 632 of the speaker pedestal portion 630 (base) and fastening them with screws (fixing means), only the speaker 610 is fixed to the back surface of the front door 102. Then, even when the rear cover 620 is positioned against the back surface of the speaker 610, the protruding piece 623a of the rear cover 620 does not interfere with the screws (fixing means) attached to the dedicated screw hole 616a of the speaker 610, and the rear cover 620 can be attached to the back surface of the speaker 610.

[0180] Further, the rear cover 620 (second member) has a point-symmetrical shape and can be attached to the speaker pedestal portion 630 (base) even when rotated 180 degrees, thus facilitating the attachment work of the rear cover 620 (second member).

[0181] A box-shaped space 622S for housing the lead wire connected to the electromagnetic circuit 611 and guiding the lead wire to the outside of the speaker unit 600 is formed to protrude from a part of the side wall portion 622. Further, a plurality of vent holes 625, which are opening holes for discharging the air around the diaphragm 613, are formed at predetermined intervals in the circumferential direction on the side wall portion 622.

[0182] <Speaker mounting structure / Correct mounting method> Next, the correct mounting method of the speaker unit 600 will be described with reference to Fig. 14(a).

[0183] Fig. 14(a) is a diagram schematically showing an example of the correct mounting method of the speaker unit 600.

[0184] When attaching the speaker unit 600 to the speaker pedestal portion 630 (base), first, as shown in Fig. 14(a-1), after attaching the speaker 610 (first member) to the speaker pedestal portion 630 (base), next, as shown in Fig. (a-2) of the same figure, attach the rear cover 620 (second member) to the speaker pedestal portion 630 (base).

[0185] More specifically, as shown in FIG. 14(a-1), two dedicated screw holes 616a (first through holes) in the flange 614 of the speaker 610 are aligned with the holes in the mounting sleeve 632 of the speaker pedestal portion 630 (base), and fastened with screws 634 (fixing means), thereby attaching only the speaker 610 to the speaker pedestal portion 630 (base).

[0186] Next, the rear cover 620 is positioned with respect to the speaker pedestal portion 630 (base) so as to cover the rear of the speaker 610. However, a screw head receiving space 623a1 is formed in the protruding piece 623a of the rear cover 620, and since the rear cover 620 does not interfere with the screw 634 (fixing means) attached to the dedicated screw hole 616a (first through hole) of the speaker 610, the rear cover 620 can be reliably positioned on the rear of the speaker 610 as shown in FIG. 14(a-2).

[0187] Finally, with the rear cover 620 positioned on the rear of the speaker 610, the screw hole 624 (third through hole) in the protruding piece 623b with a screw hole of the rear cover 620 is aligned with two common screw holes 616b (second through holes) in the flange 614 of the speaker 610 and the holes in the mounting sleeve 632 of the speaker pedestal portion 630 (base), and fastened with screws 634 (fixing means), thereby attaching the rear cover 620 to the speaker pedestal portion 630 (base). Thereby, the speaker unit 600 is integrated and fixed to the back surface of the front door 102.

[0188] According to this example, when fixing the speaker 610 (first member) and the back cover 620 (second member) to the speaker pedestal portion 630 (base) with screws (fixing means), the common screw hole 616b (second through hole) of the speaker 610 (first member) and the screw hole 624 (third through hole) of the back cover 620 (second member) can be fixed at once with one screw 634 (fixing means) through them. Therefore, the member attachment work can be simplified compared with the prior art. Also, in a state where the speaker 610 (first member) is fixed and positioned on the base using the dedicated screw hole 616a (first through hole), the back cover 620 (second member) can be fixed to the speaker pedestal portion 630 (base). Thus, it is not necessary to position the two members simultaneously, and the work efficiency can be improved.

[0189] Also, when the speaker unit 600 is correctly attached, as shown in FIG. 14(a-2), since the dedicated screw hole 616a (first through hole) in the speaker 610 (first member) is covered by the protruding piece 623a of the back cover 620 (second member), it can be visually confirmed that it is not necessary to use the dedicated screw hole 616a (first through hole) when fixing the back cover 620 (second member), and the member attachment work can be surely performed.

[0190] Note that the back cover 620 (second member) has a point-symmetric shape and can be attached to the speaker pedestal portion 630 (base) even when rotated 180 degrees. Therefore, the attachment work of the back cover 620 (second member) can be facilitated.

[0191] <Speaker mounting structure / Incorrect mounting method> Next, an incorrect mounting method of the speaker unit 600 will be described with reference to FIG. 14(b).

[0192] FIG. 14(b) is a diagram schematically showing an example of an incorrect mounting method of the speaker unit 600.

[0193] The example shown in FIG. 14(b-1) is an example in which two dedicated screw holes 616a (first through holes) in the flange 614 of the speaker 610 are erroneously overlapped with two common screw holes 616b (second through holes) in the hole of the mounting sleeve 632 of the speaker pedestal portion 630 (base), and fastened with screws 634 (fixing means), so that only the speaker 610 is attached to the speaker pedestal portion 630 (base).

[0194] In this example, as shown in FIG. 14(b-2), when the back cover 620 is positioned with respect to the speaker pedestal portion 630 (base) so as to cover the back of the speaker 610, the bottom of the protruding piece 623b with a screw hole of the back cover 620 interferes with the screw 634 (fixing means) erroneously attached to the common screw hole 616b (second through hole) of the speaker 610. Therefore, the back cover 620 cannot be positioned on the back of the speaker 610, and the back cover 620 cannot be attached.

[0195] According to this example, it is possible to easily recognize that the attachment method of the speaker 610 (first member) is incorrect, and it is possible to prevent work mistakes in advance.

[0196] FIGS. 15(a) and (b) are diagrams schematically showing another example of an incorrect attachment method of the speaker unit 600.

[0197] The example shown in FIG. 15(a) is an example in which the attachment order of the speaker 610 (first member) and the back cover 620 (second member) is incorrect, and the back cover 620 (second member) is attached to the speaker pedestal portion 630 (base) first.

[0198] Since the speaker 610 (first member) cannot be accommodated in the back cover 620 (second member) attached to the speaker pedestal portion 630 (base), it is possible to easily recognize that the attachment method of the speaker 610 (first member) is incorrect, and it is possible to prevent work mistakes in advance.

[0199] The example shown in FIG. 15(b) is an example in which the rear cover 620 (second member) was erroneously rotated by 90 degrees and an attempt was made to position it with respect to the speaker pedestal portion 630 (base).

[0200] The rear cover 620 (second member) has a point-symmetric shape and can be attached to the speaker pedestal portion 630 (base) even when rotated 180 degrees. However, since it does not have a line-symmetric shape, it cannot be positioned with respect to the speaker pedestal portion 630 (base) when rotated 90 degrees.

[0201] Also, since the position of the box-shaped space 622S of the rear cover 620 is shifted by 90 degrees, the speaker 610 cannot be housed in the rear cover 620. For this reason, it is possible to easily recognize that the attachment method of the rear cover 620 (second member) is incorrect, and it is possible to prevent work mistakes.

[0202] <Speaker mounting structure / Summary> As described above, the gaming table according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 610 shown in FIGS. 11 and 14) that can be fixed to a base (for example, the speaker pedestal portion 630 of the front door 102 shown in FIG. 11), and a second member (for example, the rear cover 620 shown in FIGS. 11 and 14) that can cover at least a part of the first member. The gaming table is characterized in that the first member includes a plurality of through holes for fixing the first member to the base, the plurality of through holes include one or more first through holes (for example, the dedicated screw holes 616a shown in FIG. 12(d)), and one or more second through holes (for example, the shared screw holes 616b shown in FIG. 12(d)) different from the first through holes. The second member includes one or more through holes (hereinafter referred to as "third through holes", for example, the screw holes 624 shown in FIGS. 11 and 14) for fixing the second member to the base. The first member is fixed to the base using the first through holes, and the second member is fixed to the base using the third through holes and the second through holes.

[0203] According to the gaming machine according to the present embodiment, when fixing the first member and the second member to the base by fixing means, it is possible to fix them at once with one fixing means through the second through hole of the first member and the third through hole of the second member. Therefore, the member mounting work can be simplified compared with the prior art. Further, since the second member can be fixed to the base in a state where the first member is fixed to the base using the first through hole and positioned, it is not necessary to position the two members at the same time, and the work efficiency can be improved.

[0204] Note that the "first member" and "second member" according to the present invention are not limited to the speaker and the back cover, and may be, for example, a substrate and a substrate case, a connector and a connector cover, a movable body and a movable body cover, etc. That is, the "first member" according to the present invention may be any member that can be fixed to the base, and the "second member" according to the present invention may be any member that can cover at least a part of the first member.

[0205] Further, after fixing the first member to the base using the first through hole, if the second member is fixed to the base using the third through hole and the second through hole, the first through hole in the first member may be covered by the second member.

[0206] With such a configuration, it can be visually confirmed that it is not necessary to use the first through hole when fixing the second member, and the member mounting work can be reliably performed.

[0207] Further, the first member may include a plurality of the first through holes and the second through holes, and the plurality of first through holes and the plurality of second through holes may be alternately arranged in the outer peripheral direction of the first member.

[0208] With such a configuration, when fixing and positioning the first member to the base using the first through holes, or when only the second member is removed from the base, the first member can be stably fixed, enhancing safety and workability.

[0209] In addition, the plurality of first through holes and the plurality of second through holes may be alternately arranged in the outer peripheral direction of the first member, and the plurality of first through holes may be at diagonal positions in the first member, and the plurality of second through holes may be at diagonal positions in the first member.

[0210] Further, after fixing the first member to the base with a fixing means (for example, the screw 634 shown in FIG. 14(b)) through the second through hole, when positioning the second member for fixing to the base, the third through hole of the second member may interfere with the fixing means.

[0211] With such a configuration, it is possible to easily recognize that the attachment method of the first member is incorrect, and prevent work mistakes in advance.

[0212] Further, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 610 shown in FIGS. 11 and 14) that can be fixed to a base (for example, the speaker pedestal portion 630 of the front door 102 shown in FIG. 11), and a second member (for example, the back cover 620 shown in FIGS. 11 and 14) that can cover at least a part of the first member. The gaming machine is characterized in that the first member includes a plurality of first through holes and a plurality of second through holes different from the first through holes, the second member includes a plurality of third through holes, the first through holes are through holes used when fixing the first member to the base among the first member and the second member, the second through holes and the third through holes are through holes used when fixing both the first member and the second member to the base, and the plurality of first through holes and the plurality of second through holes are alternately arranged on the outer peripheral portion of the first member.

[0213] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 610 shown in FIGS. 11 and 14) that can be fixed to a base (for example, the speaker pedestal portion 630 of the front door 102 shown in FIG. 11), and a second member (for example, the back cover 620 shown in FIGS. 11 and 14) that can cover at least a part of the first member. The gaming machine is configured such that the first member includes a plurality of first through holes and a plurality of second through holes different from the first through holes, the second member includes a plurality of third through holes, the first through holes are through holes used when fixing the first member of the first member and the second member to the base, the second through holes and the third through holes are through holes used when fixing both the first member and the second member to the base, the plurality of first through holes and the plurality of second through holes are alternately arranged on the outer peripheral portion of the first member, and a quadrangle is formed when the plurality of first through holes and the second through holes adjacent to both sides of the plurality of first through holes are connected by a straight line. The plurality of first through holes are arranged on the diagonal line (the apex at the end of the diagonal line) of the quadrangle. The gaming machine is characterized by this.

[0214] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 610 shown in FIGS. 11 and 14) that can be fixed to a base (for example, the speaker pedestal portion 630 of the front door 102 shown in FIG. 11), and a second member (for example, the back cover 620 shown in FIGS. 11 and 14) that can cover at least a part of the first member. The gaming machine is characterized in that the first member includes a plurality of first through-holes and a plurality of second through-holes different from the first through-holes, the second member includes a plurality of third through-holes, the first through-holes are the through-holes used when fixing the first member to the base among the first member and the second member, the second through-holes and the third through-holes are the through-holes used when fixing both the first member and the second member to the base, the plurality of first through-holes and the plurality of second through-holes are alternately arranged on the outer peripheral portion of the first member, and the base includes a frame portion formed according to the outer shape of the first member.

[0215] According to the gaming machine of the present embodiment, when fixing the first member and the second member to the base by fixing means, it is possible to fix them at once with one fixing means through the second through-holes of the first member and the third through-holes of the second member. Therefore, the member mounting work can be simplified compared to the prior art. In addition, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through-holes, it is not necessary to position the two members at the same time, and the work efficiency can be improved.

[0216] <Speaker mounting structure (Modification 1) / Configuration of speaker unit> Next, the configuration of the speaker unit 700 according to Modification 1 will be described with reference to FIG. 16. FIG. 16 is an exploded perspective view of the speaker unit 700 according to Modification 1.

[0217] As shown in FIG. 16, the speaker unit 700 according to the first modification example is composed of a speaker 710 (first member) for low-frequency output having a large diaphragm and a back cover 720 (second member) that covers the back side of the speaker 710, and is attached to a speaker pedestal portion 730 (base) formed on the back surface of the front door 102 of the slot machine.

[0218] <Speaker mounting structure / Speaker pedestal portion> The speaker pedestal portion 730 (base) includes an annular frame support portion 731 that supports the frame 714 of the speaker 710, a cylindrical cover support portion 735 that supports the bottom of the back cover 720, four mounting sleeves 732 for screwing the speaker 710 and the back cover 720 to the front door 102, a disc-shaped sound hole plate 734 attached inside the frame support portion 731, and the like. The detailed configuration of the speaker pedestal portion 730 (base) will be described later with reference to FIG. 19.

[0219] <Speaker mounting structure (first modification example) / Speaker, back cover> Next, with reference to FIGS. 17 and 18, the speaker 710 and the back cover 720 that constitute the speaker unit 700 according to the first modification example will be described in detail.

[0220] FIG. 17(a) is a side view of the back cover 720, and FIG. 17(b) is a top view of the back cover 720. FIG. 17(c) is a side view of the speaker 710, and FIG. 17(d) is a top view of the speaker 710. FIG. 18(a) is a top view of the speaker unit 700, and FIG. 18(b) is a cross-sectional view taken along line B-B of the speaker unit 700 shown in FIG. 18(a).

[0221] <Speaker mounting structure (first modification example) / Speaker> The speaker 710 (first member) is a cone-type dynamic speaker. As shown in FIGS. 17(c) and 18(b), it generally consists of a voice coil and a magnet, and includes an electromagnetic circuit 711 (electrical component) that vibrates a diaphragm 713 described later in response to an electrical signal, a frame 712 that supports this electromagnetic circuit 711, a diaphragm 713 that vibrates to generate sound, a flange 714 to which this diaphragm 713 is fixedly mounted so as to be vibratable, a pair of lead terminals 716 respectively disposed on the right side and the left side in a top view of the upper surface of this flange 714, and a lead wire (wiring) 717 detachably connected to this lead terminal 716.

[0222] The frame 712 is a cylindrical metal ring frame that slightly expands forward. A plurality of openings 715 (see FIG. 16) for discharging the air around the diaphragm 713 are formed along the circumferential direction on the side surface. That is, on the side surface of the frame 712, a plurality of openings 715 are formed along the circumferential direction, and between the openings 715, a support column 712a (see FIG. 16) is formed along the front-rear direction. The diaphragm 713 is formed in a cone shape that opens forward using a flexible material such as paper, for example.

[0223] As shown in FIG. 17(d), dedicated screw holes 716a (first through holes) for screwing the speaker 710 to the speaker pedestal portion 730 (base) are respectively formed at the upper left corner and the lower right corner of the outer end of the flange 714. Also, common screw holes 716b (second through holes) for screwing the speaker 710 and the rear cover 720 to the speaker pedestal portion 730 (base) are respectively formed at the lower left corner and the upper right corner of the outer end of the flange 714.

[0224] In this example, two dedicated screw holes 716a (first through holes) are arranged diagonally (at the vertices of the diagonal ends) at the upper left corner and the lower right corner on the outer edge of the flange 714, and two shared screw holes 716b (second through holes) are arranged diagonally (at the vertices of the diagonal ends) at the lower left corner and the upper right corner on the outer edge of the flange 714. Thus, the dedicated screw holes 716a (first through holes) and the shared screw holes 716b (second through holes) are alternately arranged at a predetermined interval in the circumferential direction along the outer edge of the flange 714.

[0225] In other words, as shown in FIG. 17(d), when a plurality of dedicated screw holes 716a (first through holes) and the shared screw holes 716b (second through holes) adjacent to both sides of these plurality of dedicated screw holes 716a (first through holes) are connected by a virtual straight line VL, a virtual quadrilateral VQ is formed. The plurality of dedicated screw holes 716a (first through holes) are arranged on the diagonal line (at the vertices of the diagonal ends) of the virtual quadrilateral VQ, and the plurality of shared screw holes 716b (second through holes) are configured to be arranged on the diagonal line (at the vertices of the diagonal ends) of the virtual quadrilateral VQ.

[0226] Also, paying attention to the distance between the dedicated screw hole 716a (first through hole) and the shared screw hole 716b (second through hole), as shown in FIG. 17(d), the shortest distance L1 from the dedicated screw hole 716a (first through hole) arranged at the upper left corner to one of the through holes of the shared screw hole 716b (second through hole) (for example, the shared screw hole 716b arranged at the upper right corner) and the shortest distance L2 from the dedicated screw hole 716a (first through hole) arranged at the upper left corner to another through hole different from the one through hole of the second through hole of the shared screw hole 716b (for example, the shared screw hole 716b arranged at the lower left corner) are substantially the same.

[0227] According to this example, when the speaker 710 (first member) is fixed to the speaker pedestal portion 730 (base) of the front door 102 using the dedicated screw holes 716a (first through holes) for positioning, or when only the rear cover 720 (second member) is removed from the speaker pedestal portion 730 (base), the speaker 710 (first member) can be stably fixed, improving safety and workability.

[0228] <Speaker mounting structure (Modification 1) / Rear cover> Next, the rear cover 720 (second member) will be described in detail.

[0229] The rear cover 720 (second member) is a colored transparent resin member capable of accommodating the speaker 710 (first member) inside, and is a member made of a material that allows the speaker 710 (first member) to be visually recognized from the outside when the speaker 710 (first member) is accommodated inside.

[0230] According to this example, since at least a part of the speaker 710 (first member) can be visually recognized through the rear cover 720 (second member), the fixing position of the speaker 710 (first member) with respect to the speaker pedestal portion 730 (base), the positional relationship between the speaker 710 (first member) and the rear cover 720 (second member), etc. can be visually confirmed, and the convenience in the member mounting work can be improved.

[0231] Note that the rear cover 720 (second member) only needs to be a member having permeability, and its material is not limited to colored transparent resin. For example, it may be colorless transparent (or translucent) plastic, acrylic, polycarbonate, polyvinyl chloride, glass, metal, etc.

[0232] As shown in FIGS. 17(a) and (b), the rear cover 720 is formed with a circular cover portion 721 that covers the rear end of the speaker 710 on the rear side, and is provided with a cylindrical side wall portion 722 that expands slightly rearward with this cover portion 721 as the base end.

[0233] The cover portion 721 is formed with a plurality of rectangular ventilation holes 725 which are openings for discharging the air around the electromagnetic circuit 711 of the speaker 710, and a predetermined display 726 (in this example, part number and material) is provided above in a top view. The display mode of the predetermined display 726 is not particularly limited. In this example, on the surface of the cover portion 721, a part number display (in this example, the display of the character string "SPxxxx") representing the part number of the back cover 720 and a material display (in this example, the display of the character string "PC") representing the material of the back cover 720 are engraved.

[0234] According to this example, since the predetermined display 726 is provided on the back cover 720, the correct orientation (mounting direction) of the back cover 720 can be easily identified by the orientation of the predetermined display 726, and the convenience during the mounting of the back cover 720 and the like can be improved.

[0235] Also, as shown in FIG. 17(b), the back cover 720 includes two protruding pieces 723a protruding outward from the outer edge of the side wall portion 722 and two threaded hole-provided protruding pieces 723b.

[0236] In this example, the two protruding pieces 723a are arranged diagonally (at the vertices of the diagonal ends) at the upper left corner and the lower right corner at the outer edge of the side wall portion 722, and the two threaded hole-provided protruding pieces 723b are arranged diagonally (at the vertices of the diagonal ends) at the lower left corner and the upper right corner at the outer edge of the side wall portion 722. Thereby, the protruding pieces 723a and the threaded hole-provided protruding pieces 723b are alternately arranged at a predetermined interval in the circumferential direction along the outer edge of the side wall portion 722.

[0237] In other words, as shown in FIG. 17(b), when the vertices of the plurality of protruding pieces 723a and the threaded hole-provided protruding pieces 723b adjacent to both sides of these plurality of protruding pieces 723a are connected by an imaginary straight line VL2, an imaginary quadrilateral VQ2 is formed. The plurality of protruding pieces 723a are arranged on the diagonal line (at the vertices of the diagonal ends) of the imaginary quadrilateral VQ2, and the plurality of threaded hole-provided protruding pieces 723b are configured to be arranged on the diagonal line (at the vertices of the diagonal ends) of the imaginary quadrilateral VQ2.

[0238] The protruding pieces 723b with screw holes disposed diagonally (at the vertices at the ends of the diagonal line) at the lower left corner and the upper right corner are each formed with screw holes 724 (third through holes) for screwing the speaker 710 and the rear cover 720 together and fastening them to the speaker pedestal portion 730 (base) at positions slightly eccentric toward the cover portion 721 side (the center side of the rear cover 720) from the centers of the protruding pieces 723b with screw holes.

[0239] With such a configuration, by fastening the common screw holes 716b (second through holes) of the speaker 710 and the screw holes 724 (third through holes) of the rear cover 720 to the speaker pedestal portion 730 (base) with screws 740 (fixing means; see FIG. 16), the speaker unit 700 is integrated and fixed to the speaker pedestal portion 730 (base). Note that the method of attaching the speaker unit 700 will be described later.

[0240] Around the screw holes 724 (third through holes) in the protruding pieces 723b with screw holes, there are formed thin screw hole identification recesses 724a each consisting of an annular recess having an outer diameter larger than that of the screw holes 724. Due to the screw hole identification recesses 724a formed around the screw holes 724, the wall thickness around the screw holes 724 (third through holes) of the rear cover 720 is formed thinner than the wall thickness of other parts of the rear cover 720.

[0241] According to this example, when positioning the rear cover 720 (second member), the presence of the protruding pieces 723b with screw holes enables easy recognition of the fixing positions (screw holes 724 (third through holes)) of the rear cover 720 (second member), and the protruding pieces 723b with screw holes can also function as reinforcement for the portion (screw hole identification recesses 724a) where the wall thickness around the screw holes 724 (third through holes) is formed thin.

[0242] Also, on the side wall portion 722, there is formed a screw hole identification groove 722a which communicates with the screw hole identification recesses 724a and consists of a linear groove extending from the lower part to the upper part of the side wall portion 722.

[0243] That is, in this example, around the screw hole 724 (third through hole), a screw hole identification recess 724a and a screw hole identification groove 722a are formed, so that the screw hole 724 (third through hole) can be identified.

[0244] According to this example, at least one of the dedicated screw hole 716a (first through hole), the shared screw hole 716b (second through hole), and the screw hole 724 (third through hole) (in this example, the screw hole 724 (third through hole)) is configured to be identifiable. Therefore, it can be easily determined whether each through hole is a through hole used when fixing only the first member as a base, or a through hole used when fixing both the first member and the second member as a base, and the efficiency of the member attachment work can be improved. In addition, based on the through hole type, the correct orientation (attachment direction) of the back cover 720 can be easily identified, and the convenience during the attachment of the back cover 720 and the like can be improved.

[0245] Note that in this example, as a configuration for making the screw hole 724 (third through hole) identifiable, an example of forming a screw hole identification recess 724a and a screw hole identification groove 722a near the screw hole 724 (third through hole) is shown. However, the present invention is not limited to this. For example, only one of the screw hole identification recess 724a and the screw hole identification groove 722a may be formed, or a seal or the like capable of identifying the screw hole 724 (third through hole) may be attached near the screw hole 724 (third through hole), or a display, printing, engraving, etc. capable of identifying the screw hole 724 (third through hole) may be performed.

[0246] Also, on members other than the back cover 720 (second member) (for example, the speaker pedestal portion 730 (base) and the speaker 710 (first member)), a part capable of identifying the screw hole 724 (third through hole) may be formed, a seal or the like capable of identifying the screw hole 724 (third through hole) may be attached, or a display, printing, engraving, etc. capable of identifying the screw hole 724 (third through hole) may be performed.

[0247] In addition, although a configuration for making the screw hole 724 (third through hole) of the back cover 720 distinguishable has been illustrated, instead of (or in addition to) this, a configuration for making the dedicated screw hole 716a (first through hole) of the speaker 710 (first member), and / or the common screw hole 716b (second through hole) distinguishable may be adopted.

[0248] Therefore, for example, on the mounting sleeve 732 of the speaker pedestal portion 730 (base), a portion where at least one of the dedicated screw hole 716a (first through hole), the common screw hole 716b (second through hole), and the screw hole 724 (third through hole) is distinguishable is formed, or a seal or the like where at least one through hole is distinguishable is attached, or a display, printing, engraving, etc. where at least one through hole is distinguishable is applied. Also, on the flange 714 of the speaker 710 (first member), a portion where the dedicated screw hole 716a (first through hole), and / or the common screw hole 716b (second through hole) is distinguishable is formed, or a seal or the like where the dedicated screw hole 716a (first through hole), and / or the common screw hole 716b (second through hole) is distinguishable is attached, or a display, printing, engraving, etc. where the dedicated screw hole 716a (first through hole), and / or the common screw hole 716b (second through hole) is distinguishable is applied.

[0249] Further, by making the shape of the protruding piece 723b with a screw hole of the back cover 720 different from the shape of the protruding piece 723a, it may be made distinguishable that the through hole formed in the protruding piece 723b with a screw hole is the through hole used when fixing both the speaker 710 (first member) and the back cover 720 (second member) to the speaker pedestal portion 730 (base). Conversely, by making the shape of the protruding piece 723a of the back cover 720 different from the shape of the protruding piece 723b with a screw hole, it may be made distinguishable that the through hole of the speaker 710 covered by the protruding piece 723a is the through hole used when fixing only the speaker 710 (first member) to the speaker pedestal portion 730 (base).

[0250] With such a configuration, based on the shape of the protruding piece of the back cover 720, it becomes possible to visually identify the role of the through hole, and the work efficiency can be improved.

[0251] In addition, the protruding pieces 723a arranged diagonally (at the vertices of the diagonal ends) at the upper left and lower right corners of the back cover 720 are parts having a two-step stepped shape with a greater thickness, i.e., a greater height from the bottom surface of the back cover 720 than that of the protruding piece 723b with a screw hole, as shown in the side view of FIG. 17(a). Inside the protruding piece 723a, a screw accommodation space 723a1 having a size capable of accommodating a part (head) of the screw 740 is formed.

[0252] With such a configuration, when only the speaker 710 is fixed to the speaker pedestal portion 730 by fastening the dedicated screw hole 716a (first through hole) of the speaker 710 to the speaker pedestal portion 730 (base) with the screw 740 and then positioning the back cover 720 against the back of the speaker 710, the head of the screw 740 attached to the dedicated screw hole 716a of the speaker 710 is accommodated in the screw accommodation space 723a1. Therefore, the screw 740 does not interfere with the back cover 720, and the back cover 720 can be reliably attached to the back of the speaker 710.

[0253] In addition, the back cover 720 (second member) has a point-symmetric shape and can be attached to the speaker pedestal portion 730 (base) even when rotated 180 degrees. Therefore, the attachment operation of the back cover 720 (second member) can be facilitated.

[0254] As described above, since a predetermined display 726 is provided on the back cover 720, when attaching the back cover 720 to the speaker pedestal portion 730, it is preferable to attach it in a regular orientation with the side having the predetermined display 726 facing up so that the predetermined display 726 is easily visible. However, even when the back cover 720 is rotated 180 degrees from the regular orientation, although the orientation of the predetermined display 726 is reversed, it can still be attached to the speaker pedestal portion 730 (base).

[0255] As shown in Fig. 17(b), box-shaped spaces 722S (space portions) for accommodating a pair of lead terminals 716 and guiding lead wires 717 to the outside of the speaker unit 700 are formed to project respectively at the right and left outer edges in the top view of the rear cover 720.

[0256] As shown in Figs. 17(a) and (b), this box-shaped space 722S (space portion) is composed of a vertically long rectangular parallelepiped-shaped first space portion 722S1 that extends from the upper part of the side wall portion 722 to the vicinity of the lower part of the side wall portion 722 with the upper part of the side wall portion 722 as the base end, and a horizontally long rectangular parallelepiped-shaped second space portion 722S2 that communicates with the first space portion 722S1 and has a width slightly larger than the width of the first space portion 722S1. The first space portion 722S1 and the second space portion 722S2 are arranged on the radially outer side of the rear cover 720 (second member) with respect to the screw hole 724 (third through hole).

[0257] With such a configuration, in a state where the speaker 710 (first member) and the rear cover 720 (second member) are fixed to the speaker pedestal portion 730 (base), a space is formed between the speaker 710 (first member) and the rear cover 720 (second member). As shown in Fig. 18(b), the lead wire 717 (wiring) of the speaker 710 can be drawn out to the outside of the speaker 710 (first member) and the rear cover 720 (second member) through the space.

[0258] According to this example, even when a part of the speaker 710 (first member) is covered by the rear cover 720 (second member), the lead wire 717 (wiring) of the speaker 710 (first member) can be drawn out to the outside, and the degree of freedom in design can be increased.

[0259] Also, when fixing the rear cover 720 (second member) to the speaker pedestal portion 730 (base), since a wider area can be taken for regions other than the portions where the speaker pedestal portion 730 (base) and the rear cover 720 (second member) come into contact (around the through-hole), a situation where wiring is pinched between the speaker pedestal portion 730 (base) and the rear cover 720 (second member) can be prevented.

[0260] Also, the horizontally long rectangular parallelepiped-shaped second space portion 722S2 allows for securing a wide area when drawing out wiring from between the rear cover 720 (second member) and the speaker pedestal portion 730 (base). Moreover, the vertically long rectangular parallelepiped-shaped first space portion 722S1 partially restricts the area for guiding the wiring, enabling the wiring of the speaker 710 to be smoothly guided to the second space portion 722S2. Additionally, it can prevent the wiring from approaching the vicinity of the through-hole when the rear cover 720 (second member) is fixed, which would otherwise interfere with the mounting operation.

[0261] Note that in this example, an example of forming two box-shaped spaces (space portions) 722S in the rear cover 720 is shown. However, the number of box-shaped spaces (space portions) 722S is not limited to this example. When the speaker 710 has only one lead terminal, only one box-shaped space (space portion) 722S capable of accommodating this lead terminal may be formed. Also, a notch recess or the like for guiding the lead wire to the outside may be formed below the box-shaped space (space portion) 722S.

[0262] <Speaker mounting structure (Modification 1) / Speaker pedestal portion> Next, with reference to FIG. 19, the speaker pedestal portion 730 (base) will be described in detail.

[0263] FIGS. 19(a) to (d) are diagrams showing an example of the speaker unit 700 mounting method in chronological order. FIG. 19(a) is a diagram showing the speaker pedestal portion 730 with the sound hole plate 734 removed.

[0264] As described with reference to FIG. 16, the speaker pedestal portion 730 (base) includes an annular frame support portion 731 that supports the frame 714 of the speaker 710, a cylindrical cover support portion 735 that supports the bottom of the rear cover 720, four mounting sleeves 732 (732a, 732b) for screwing the speaker 710 and the rear cover 720 to the front door 102, and a disc-shaped sound hole plate 734 attached inside the frame support portion 731.

[0265] As shown in FIG. 19(a), the sound hole plate 734 is formed with a plurality of circular sound holes 734a for outputting the sound of the speaker 710, and on the outer edge of the sound hole plate 734, four locking portions 734b that can be locked to the sound hole plate locking portion 736 of the frame support portion 731 are formed along the circumferential direction at a predetermined interval.

[0266] On the other hand, inside the frame support portion 731, four sound hole plate locking portions 736 to which the locking portions 734b of the sound hole plate 734 can be locked are formed at a predetermined interval along the inner circumference of the frame support portion 731. Further, the height of the frame support portion 731 (the height from the back surface of the front door 102) is designed to be higher than the maximum vibration width of the diaphragm 713 so as not to inhibit the vibration of the diaphragm 713 of the speaker 710.

[0267] The sound hole plate 734 has an outer diameter smaller than the inner diameter of the frame support portion 731. After being fitted inside the frame support portion 731, the four locking portions 734b are respectively locked to the four sound hole plate locking portions 736, and thus, as shown in FIG. 19(b), it is fixed inside the frame support portion 731.

[0268] Among the four mounting sleeves 732, the first mounting sleeve 732a arranged at the upper left corner and the lower right corner in the top view is a mounting sleeve to which the dedicated screw hole 716a (first through hole) of the speaker 710 is fastened by a screw 740, as shown in FIG. 19(c).

[0269] On one hand, among the four mounting sleeves 732, the second mounting sleeve 732b arranged at the lower left corner and the upper right corner in top view is a mounting sleeve in which the common screw hole 716b (second through hole) of the speaker 710 and the screw hole 724 (third through hole) of the back cover 720 are fastened by screws 740, as shown in FIG. 19(d).

[0270] Outside the frame support portion 731, a rectangular first rectangular boss 737a is erected so as to surround the periphery of the first mounting sleeve 732a, and a rectangular second rectangular boss 737b is erected so as to surround the periphery of the second mounting sleeve 732b. In the vicinity of the first mounting sleeve 732a arranged at the upper left corner and the lower right corner in top view, an arcuate through-hole identification boss 738 is erected.

[0271] This through-hole identification boss 738 is a boss erected to identify that among the four mounting sleeves 732, the two first mounting sleeves 732a are mounting sleeves fastened to the dedicated screw holes 716a (first through holes) of the speaker 710, and it is not formed in the vicinity of the second mounting sleeve 732b.

[0272] According to this example, since the through-hole identification boss 738 is erected in the vicinity of the two first mounting sleeves 732a among the four mounting sleeves 732, using this through-hole identification boss 738 as a clue, it is possible to attach the speaker 710 and the back cover 720 to the speaker pedestal portion 730 in the correct orientation, preventing work mistakes and improving work efficiency.

[0273] Furthermore, between the first rectangular boss 737a arranged at the upper left corner in top view and the second rectangular boss 737b arranged at the lower left corner in top view, and between the second rectangular boss 737b arranged at the upper right corner in top view and the first rectangular boss 737a arranged at the lower right corner in top view, arcuate mounting direction identification bosses 739 are erected respectively.

[0274] This mounting direction identification boss 739 is a boss erected to enable identification of the mounting direction of the speaker 710 and the rear cover 720. It is a boss not formed between the first rectangular boss 737a disposed at the upper left corner in a top view and the second rectangular boss 737b disposed at the upper right corner in a top view, and between the second rectangular boss 737b disposed at the lower left corner in a top view and the first rectangular boss 737a disposed at the lower right corner in a top view.

[0275] According to this example, since the mounting direction identification boss 739 capable of identifying the mounting direction of the speaker 710 and the rear cover 720 is erected, when attaching the speaker 710 to the speaker pedestal portion 730, by aligning the position of the lead terminal 716 of the speaker 710 with the mounting direction identification boss 739, the speaker 710 can be attached to the speaker pedestal portion 730 in the correct orientation. When attaching the rear cover 720 to the speaker pedestal portion 730, by aligning the box-shaped space 722S of the rear cover 720 with the mounting direction identification boss 739, the rear cover 720 can be attached to the speaker pedestal portion 730 in the correct orientation. This can prevent operational errors when attaching the speaker 710 and the rear cover 720 and improve the work efficiency.

[0276] <Speaker Mounting Structure (Modification 1) / Mounting Method> Next, the mounting method of the speaker unit 700 will be described with reference to FIG. 19.

[0277] When attaching the speaker unit 700 to the speaker pedestal portion 730, first, as shown in FIGS. 19(b) and (c), after attaching the speaker 710 to the speaker pedestal portion 730, next, as shown in FIGS. 19(c) and (d), attach the rear cover 720 to the speaker pedestal portion 730.

[0278] More specifically, when attaching the speaker 710 to the speaker pedestal portion 730, align the dedicated screw holes 716a of the speaker 710 with the through-hole identification boss 738 and the first rectangular boss 737a of the speaker pedestal portion 730 as a guide, and align the position of the lead terminal 716 of the speaker 710 with the attachment direction identification boss 739 to position the speaker 710 with respect to the speaker pedestal portion 730.

[0279] Subsequently, as shown in FIG. 19(c), overlap the two dedicated screw holes 716a of the speaker 710 with the holes of the attachment sleeve 732a of the speaker pedestal portion 730, and fasten with screws 740 to attach only the speaker 710 to the speaker pedestal portion 730.

[0280] Note that the speaker 710 has a substantially point-symmetric shape and can be attached to the speaker pedestal portion 730 even when rotated 180 degrees, so the attachment work of the speaker 710 can be facilitated.

[0281] In addition, since the lead terminal 716 and the lead wire 717 of the speaker 710 are detachably configured, even when the wiring of the lead wire 717 to the speaker pedestal portion 730 is completed, it is possible to rotate the speaker 710 by 180 degrees, attach it to the speaker pedestal portion 730, and then connect the lead terminal 716 and the lead wire 717. Also, even when the speaker 710 is attached to the speaker pedestal portion 730, it is possible to change the wiring of the lead wire 717 and then connect the lead terminal 716 and the lead wire 717 later.

[0282] Next, when attaching the rear cover 720 to the speaker pedestal portion 730, after recognizing the screw holes 724 of the rear cover 720 using the screw hole identification recess 724a and the screw hole identification groove 722a as marks, align the second rectangular boss 737b of the speaker pedestal portion 730 as a mark with the second attachment sleeve 732b. While aligning the position of the box-shaped space 722S of the rear cover 720 with the attachment direction identification boss 739, cover the rear surface of the speaker 710 with the rear cover 720 to position the rear cover 720 with respect to the speaker pedestal portion 730.

[0283] Subsequently, as shown in FIG. 19(d), align the screw holes 724 of the rear cover 720 with the common screw holes 716b of the speaker 710 and the holes of the attachment sleeve 732b of the speaker pedestal portion 730, and fasten them with screws 740 to attach the rear cover 720 to the speaker pedestal portion 730. Thereby, the speaker unit 700 is integrated and fixed to the back surface of the front door 102.

[0284] According to this example, when fixing the speaker 710 and the rear cover 720 to the speaker pedestal portion 730 with screws 740, since it is possible to fix them at once with one screw 740 through the common screw holes 716b of the speaker 710 and the screw holes 724 of the rear cover 720, the member attachment work can be simplified compared to the prior art. Also, since it is possible to fix the rear cover 720 to the speaker pedestal portion 730 with the speaker 710 fixed and positioned to the base using the dedicated screw holes 716a, there is no need to position two members simultaneously, and the work efficiency can be improved.

[0285] Note that the rear cover 720 has a substantially point-symmetrical shape and can be attached to the speaker pedestal portion 730 in a state where the lead terminals 716 and the lead wires 717 of the speaker 710 are accommodated in the box-shaped space 722S even when rotated 180 degrees. Therefore, the attachment work of the rear cover 720 can be facilitated.

[0286] Also, when the speaker unit 700 is correctly installed and the speaker 710 (first member) is covered with the rear cover 720 (second member), as shown in FIG. 19(d), since the dedicated screw hole 716a (first through hole) in the speaker 710 (first member) is configured to be covered by the protruding piece 723a (a certain part) of the rear cover 720 (second member), it can be visually confirmed that there is no need to use the dedicated screw hole 716a when fixing the rear cover 720. Moreover, the positioning of the rear cover 720 (second member) with respect to the speaker 710 (first member) can be easily performed, and the attachment work of the second member can be reliably carried out.

[0287] Furthermore, since a screw accommodation space 723a1 (accommodation space) having a predetermined space is formed in the protruding piece 723a (a certain part) of the rear cover 720 (second member), even when the rear cover 720 is positioned with respect to the rear surface of the speaker 710, the head of the screw 740 (fixing means) attached to the dedicated screw hole 716a (first through hole) of the speaker 710 (first member) is accommodated in the screw accommodation space 723a1 (space part). Therefore, the screw 740 (fixing means) does not interfere with the rear cover 720 (second member), and the rear cover 720 (second member) can be reliably attached to the rear surface of the speaker 710.

[0288] In particular, when a screw is used as the fixing means, if the tightening degree of the screw is loose when the speaker 710 (first member) is fixed to the speaker pedestal portion 730 (base), the head of the screw may protrude more than necessary from the dedicated screw hole 716a (first through hole). However, since a screw accommodation space 723a1 (accommodation space) capable of accommodating at least a part of the screw 740 (fixing means) is formed in the rear cover 720 (second member), the risk of interference between the rear cover 720 (second member) and the head of the screw can be avoided.

[0289] In addition, since the wall thickness around the screw hole 724 of the back cover 720 is formed thinner than the wall thickness of other parts of the back cover 720, the stroke amount of the screw 740 (fixing means) that fastens both the common screw hole 716b (second through hole) of the speaker 710 (first member) and the screw hole 724 (third through hole) of the back cover 720 (second member) can be reduced, improving work efficiency. Moreover, since a part of the head of the screw 740 (fixing means) can be accommodated in the screw hole identification recess 724a formed around the third through hole, it is possible to make it difficult for the screw 740 (fixing means) to come off, and the speaker 710 (first member) and the back cover 720 (second member) can be stably fixed to the speaker pedestal portion 730 (base). Also, the screw hole identification recess 724a (around the third through hole) also functions as a positioning when attaching the screw 740 (fixing means).

[0290] Furthermore, when attaching the speaker 710 and the back cover 720, since a common screw 740 (a screw with the same length and thickness) can be used, there is no need to distinguish between multiple types of screws, improving convenience. Additionally, screw attachment mistakes can be eliminated, and the members can be securely attached.

[0291] Note that when attaching the speaker 710 and the back cover 720 and using a common screw 740, the length of the screw 740 needs to be at least the sum of the thickness of the screw hole 724 of the back cover 720 and the thickness of the common screw hole 716b of the speaker 710.

[0292] Therefore, when using the common screw 740 to fasten the dedicated screw hole 716a of the speaker 710, the length of the screw becomes excessive by the thickness of the back cover 720. However, in this example, since the screw 740 attached to the dedicated screw hole 716a of the speaker 710 is configured to be accommodated in the screw accommodation space 723a1, the screw 740 does not interfere with the back cover 720. Moreover, by covering the screw 740 with the screw accommodation space 723a1, it is possible to prevent deterioration of the screw 740 and improper acts against the screw 740.

[0293] As shown in FIG. 19(d), when the rear cover 720 is attached to the speaker pedestal portion 730, the bottom of the rear cover 720 is configured to be supported not only by the four mounting sleeves 732 but also by a cylindrical cover support portion 735 disposed on the right side in a top view. That is, when the speaker 710 (first member) and the rear cover 720 (second member) are fixed to the speaker pedestal portion 730 (base), a part of the rear cover 720 (second member) abuts against the mounting sleeves 732 and the cover support portion 735 of the speaker pedestal portion 730 (base), and a space is formed between the speaker pedestal portion 730 (base) and the rear cover 720 (second member).

[0294] Also, as described with reference to FIG. 18(b), even when the speaker 710 (first member) is covered with the rear cover 720 (second member), a space is formed between the speaker 710 (first member) and the rear cover 720 (second member).

[0295] With such a configuration, spaces are formed between the speaker pedestal portion 730 (base) and the rear cover 720 (second member), and between the speaker 710 (first member) and the rear cover 720 (second member), and the lead wire 717 (wiring) of the speaker 710 can be drawn out to the outside of the speaker 710 (first member) and the rear cover 720 (second member) through these spaces.

[0296] <Summary of Speaker Mounting Structure (Modification 1)> As described above, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 710 shown in FIGS. 16 and 17(c), (d)) that can be fixed to a base (for example, the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (for example, the back cover 620 shown in FIGS. 16 and 17(a), (b)) that can cover at least a part of the first member. The gaming machine is characterized in that the first member includes a first through hole (for example, the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through holes (for example, the common screw holes 716b shown in FIG. 17(d)) different from the first through hole. The second member includes a plurality of third through holes (for example, the screw holes 724 shown in FIG. 17(b)). The first through hole is a through hole used when fixing the first member of the first member and the second member to the base. The second through hole and the third through hole are through holes used when fixing both the first member and the second member to the base. The first through hole and the plurality of second through holes are arranged in the order of the second through hole, the first through hole, and the second through hole on the outer peripheral portion of the first member. A convex portion (for example, the protruding piece 723b with a screw hole shown in FIG. 17(b)) is formed in the vicinity of the third through hole in the second member, and a concave portion (for example, the screw hole identification groove 722a shown in FIG. 17(b)) is formed in the convex portion in the vicinity of the third through hole.

[0297] According to the gaming machine according to this embodiment, when fixing the first member and the second member to the base, since it is possible to fix them at once through the second through hole of the first member and the third through hole of the second member, the member mounting work can be simplified more than before, and the two first members and the second member can be stably fixed. Further, since it is possible to fix the second member to the base in a state where the first member is fixed and positioned on the base using the first through hole, there is no need to position the two members simultaneously, and the work efficiency can be improved. Further, since the first through hole and the plurality of second through holes are arranged in the order of the second through hole, the first through hole, and the second through hole on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through holes arranged on both sides of the first through hole. Further, a convex portion is formed in the vicinity of the third through hole in the second member, and a concave portion is formed in the convex portion in the vicinity of the third through hole (that is, the third through hole is provided with identification means that can be identified). Therefore, it is possible to easily determine whether each through hole is a through hole used when fixing to the base or a through hole used when fixing both the first member and the second member to the base, and the efficiency of the member mounting work can be improved.

[0298] Further, each of the plurality of second through holes may be provided at the outer end of the second member.

[0299] With such a configuration, the second member can be stably fixed to the base.

[0300] Further, a portion (for example, the first mounting sleeve 732a, the second mounting sleeve 732b, and the frame support portion 731 shown in FIG. 19(b)) capable of positioning the first member may be formed on the base.

[0301] With such a configuration, even when the second member is removed from the base, the first member can be stably fixed to the base.

[0302] Further, the shortest distance from the first through-hole to one of the plurality of second through-holes (for example, the shortest distance L1 shown in FIG. 17(d)) and the shortest distance from the first through-hole to another through-hole among the plurality of second through-holes (for example, the shortest distance L2 shown in FIG. 17(d)) may be substantially the same.

[0303] With such a configuration, the first member can be stably fixed to the base, enhancing safety and workability.

[0304] Here, "substantially the same" is not limited to the case where the shortest distance from the first through-hole to one of the plurality of second through-holes and the shortest distance from the first through-hole to another through-hole among the plurality of second through-holes are "identical", but includes the case where the shortest distances of both are "substantially identical" (for example, when the ratio of the shortest distances is 4:6 or 6:4, or when the first through-hole is disposed substantially at the center between the second through-holes disposed on both sides thereof, etc.).

[0305] Further, depending on the shape, weight, etc. of the first member, the shortest distances of both may be made different. For example, the first through-hole may be between the second through-holes disposed on both sides thereof and near the center of gravity position of the first member. When the first member has a polygonal shape, the second through-hole may be disposed at a position having a diagonal relationship (vertices at the ends of the diagonal) in the first member, or may be disposed at a position having no diagonal relationship in the first member, or may be disposed near the apex angle, or may be disposed along the side, or may be disposed at a position other than the outer edge.

[0306] Further, the first member is a member including an electrical component (for example, the electromagnetic circuit 711 shown in FIG. 19(b)) to which a wiring (for example, the lead wire 717 shown in FIG. 19(b)) is connected. In a state where the first member and the second member are fixed to the base, a space is formed between the first member and the second member, and the wiring may be configured to be drawn out to the outside of the first member and the second member through the space.

[0307] With such a configuration, even when a part of the first member is covered by the second member, the wiring of the first member can be drawn out to the outside, and the degree of freedom in design can be increased.

[0308] Further, the gaming table according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 710 shown in FIGS. 16 and 17(c), (d)) that can be fixed to a base (for example, the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (for example, the back cover 620 shown in FIGS. 16 and 17(a), (b)) that can cover at least a part of the first member. The first member includes a first through hole (for example, the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through holes (for example, the common screw holes 716b shown in FIG. 17(d)) different from the first through hole. The second member includes a plurality of third through holes (for example, the screw holes 724 shown in FIG. 17(b)). The first through hole is a through hole used when fixing the first member of the first member and the second member to the base. The second through hole and the third through hole are through holes used when fixing both the first member and the second member to the base. The first through hole and the plurality of second through holes are alternately arranged on the outer peripheral portion of the first member. A convex portion (for example, the protruding piece 723b with a screw hole shown in FIG. 17(b)) is formed in the vicinity of the third through hole in the second member, and a concave portion (for example, the screw hole identification groove 722a shown in FIG. 17(b)) is formed in the convex portion in the vicinity of the third through hole. The gaming table is characterized by this.

[0309] According to the gaming machine according to the present embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through hole of the first member and the third through hole of the second member. Therefore, the member mounting work can be simplified more than before, and the two first members and the second member can be stably fixed. Further, since it is possible to fix the second member to the base in a state where the first member is fixed and positioned on the base using the first through hole, there is no need to position the two members at the same time, and the work efficiency can be improved. Further, since the first through hole and the plurality of second through holes are arranged in the order of the second through hole, the first through hole, and the second through hole on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through holes arranged on both sides of the first through hole. Further, a convex portion is formed in the vicinity of the third through hole in the second member, and a concave portion is formed in the convex portion in the vicinity of the third through hole (that is, the third through hole is provided with an identification means capable of being identified). Therefore, it is possible to easily determine whether it is a through hole used when fixing to the base or a through hole used when fixing both the first member and the second member to the base, and the efficiency of the member mounting work can be improved.

[0310] In addition, the gaming machine according to the present embodiment (e.g., the slot machine 100 shown in FIG. 1) includes a first member (e.g., the speaker 710 shown in FIGS. 16, 17(c), and (d)) that can be fixed to a base (e.g., the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (e.g., the back cover 620 shown in FIGS. 16, 17(a), and (b)) that can cover at least a part of the first member. The first member includes a first through-hole (e.g., the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through-holes (e.g., the common screw holes 716b shown in FIG. 17(d)) different from the first through-hole. The second member includes a plurality of third through-holes (e.g., the screw holes 724 shown in FIG. 17(b)). The first through-hole is a through-hole used when fixing the first member of the first member and the second member to the base. The second through-hole and the third through-hole are through-holes used when fixing both the first member and the second member to the base. The first through-hole and the plurality of second through-holes are arranged in the order of the second through-hole, the first through-hole, and the second through-hole on the outer peripheral portion of the first member. In a state where the first member and the second member are fixed to the base, the first through-hole of the first member is configured to be covered by a certain part of the second member (e.g., the protruding piece 723a of the back cover 720 shown in FIG. 19(d)). The gaming machine is characterized by this.

[0311] According to the gaming machine according to the present embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through-hole of the first member and the third through-hole of the second member. Therefore, the member attachment work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through-hole, there is no need to position the two members simultaneously, and the work efficiency can be improved. Further, since the first through-hole and the plurality of second through-holes are arranged in the order of the second through-hole, the first through-hole, and the second through-hole on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through-holes arranged on both sides of the first through-hole. Further, since the first through-hole of the first member is configured to be covered by a certain part of the second member in a state where the first member and the second member are fixed to the base, it is possible to visually confirm that it is not necessary to use the first through-hole when fixing the second member, and it is possible to easily position the second member with respect to the first member, and the attachment work of the second member can be surely performed.

[0312] Further, the first member and the second member are configured to be fixable (or fixed) to the base by fixing means (for example, the screw 740 shown in FIGS. 16 and 19), and a housing space (for example, the screw housing space 723a1 shown in FIG. 17(a)) capable of housing at least a part of the fixing means may be formed in the certain part.

[0313] With such a configuration, since a part of the fixing means attached to the first through-hole of the first member is accommodated in the accommodation space, the fixing means does not interfere with the second member, and the second member can be securely attached to the back surface of the first member. In particular, when a screw is used as the fixing means, if the tightening of the screw is loose when the first member is fixed to the base, the head of the screw may protrude from the first through-hole more than necessary. However, since the second member is formed with an accommodation space capable of accommodating at least a part of the fixing means, the risk of interference between the second member and the head of the screw can be avoided.

[0314] Further, after fixing the first through-hole of the first member to the base by the fixing means, the third through-hole of the second member may be positioned with respect to the second through-hole of the first member, and the second through-hole of the first member and the third through-hole of the second member may be configured to be fixable (or fixed) to the base by the fixing means.

[0315] With such a configuration, for example, when a screw is used as the fixing means, if the tightening of the screw is loose when the first member is fixed to the base, the head of the screw may protrude from the first through-hole more than necessary. However, since the second member is formed with an accommodation space capable of accommodating at least a part of the fixing means, the risk of interference between the second member and the head of the screw can be avoided.

[0316] Further, the second member may be a member made of a material that allows the first member to be visually recognized from the outside when the first member is accommodated inside.

[0317] With such a configuration, since the first member can be visually recognized through the second member, the fixing position of the first member with respect to the base, the positional relationship between the first member and the second member, etc. can be confirmed, and the convenience in the member mounting operation can be improved.

[0318] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 710 shown in FIGS. 16, 17(c), and 17(d)) that can be fixed to a base (for example, the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (for example, the back cover 620 shown in FIGS. 16, 17(a), and 17(b)) that can cover at least a part of the first member. The first member includes a first through-hole (for example, the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through-holes (for example, the shared screw holes 716b shown in FIG. 17(d)) different from the first through-hole. The second member includes a plurality of third through-holes (for example, the screw holes 724 shown in FIG. 17(b)). The first through-hole is a through-hole used when fixing the first member of the first member and the second member to the base. The second through-hole and the third through-hole are through-holes used when fixing both the first member and the second member to the base. The first through-hole and the plurality of second through-holes are alternately arranged on the outer peripheral portion of the first member. In a state where the first member and the second member are fixed to the base, the first through-hole of the first member is configured to be covered by a certain part of the second member (for example, the protruding piece 723a of the back cover 720 shown in FIG. 19(d)). The gaming machine is characterized by this.

[0319] According to the gaming table according to this embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through-hole of the first member and the third through-hole of the second member. Therefore, the member mounting work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through-hole, there is no need to position the two members simultaneously, and the work efficiency can be improved. Further, since the first through-hole and the plurality of second through-holes are alternately arranged on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through-holes arranged on both sides of the first through-hole. Further, in a state where the first member and the second member are fixed to the base, since the first through-hole of the first member is configured to be covered by a certain part of the second member, it can be visually confirmed that there is no need to use the first through-hole when fixing the second member. In addition, the positioning of the second member with respect to the first member can be easily performed, and the mounting work of the second member can be surely performed.

[0320] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 710 shown in FIGS. 16, 17(c), and 17(d)) that can be fixed to a base (for example, the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (for example, the back cover 620 shown in FIGS. 16, 17(a), and 17(b)) that can cover at least a part of the first member. The first member includes a first through hole (for example, the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through holes (for example, the common screw holes 716b shown in FIG. 17(d)) different from the first through hole. The second member includes a plurality of third through holes (for example, the screw holes 724 shown in FIG. 17(b)). The first through hole is a through hole used when fixing the first member to the base among the first member and the second member. The second through hole and the third through hole are through holes used when fixing both the first member and the second member to the base. The first through hole and the plurality of second through holes are arranged in the order of the second through hole, the first through hole, and the second through hole on the outer peripheral portion of the first member. The portion where the third through hole is formed is constituted by a thin-walled portion (for example, the screw hole identification recess 724a shown in FIGS. 17(a) and 17(b)) that is thinner than the periphery of the portion. The gaming machine is characterized by this.

[0321] According to the gaming table according to this embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through hole of the first member and the third through hole of the second member. Therefore, the member mounting work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through hole, it is not necessary to position the two members simultaneously, and the work efficiency can be improved. Further, since the first through hole and the plurality of second through holes are arranged in the order of the second through hole, the first through hole, and the second through hole on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through holes arranged on both sides of the first through hole. Further, since the portion where the third through hole is formed is a thin-walled portion thinner than the periphery of the portion, the stroke amount of the fixing means (for example, a screw) for fastening both the second through hole of the first member and the third through hole of the second member can be reduced, and the work efficiency can be improved. Further, since a part of the head of the fixing means can be accommodated in the thin-walled portion around the third through hole, the fixing means can be made difficult to come off, and the first member and the second member can be stably fixed to the base. Further, the thin-walled portion formed around the third through hole also functions as positioning when attaching the fixing means.

[0322] Further, the second member may include a protruding piece (for example, the protruding piece 723b with a screw hole shown in FIG. 17(b)) that protrudes outward from the vicinity of the third through hole.

[0323] With such a configuration, when the second member is positioned, the presence of the protruding piece can easily recognize the fixing position (third through hole) of the second member, and it can also function as reinforcement for the portion where the wall thickness around the third through hole is thinly formed.

[0324] Further, with the first member and the second member fixed to the base, the first through-hole of the first member may be configured to be covered by a certain part of the second member (for example, the protruding piece 723a of the back cover 720 shown in FIG. 19(d)).

[0325] With such a configuration, it is possible to visually confirm that it is not necessary to use the first through-hole when fixing the second member, and it is possible to easily position the second member with respect to the first member, and the attachment work of the second member can be surely performed.

[0326] Further, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 710 shown in FIGS. 16 and 17(c), (d)) that can be fixed to a base (for example, the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (for example, the back cover 620 shown in FIGS. 16 and 17(a), (b)) that can cover at least a part of the first member. The first member includes a first through-hole (for example, the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through-holes (for example, the common screw holes 716b shown in FIG. 17(d)) different from the first through-hole. The second member includes a plurality of third through-holes (for example, the screw holes 724 shown in FIG. 17(b)). The first through-hole is a through-hole used when fixing the first member to the base among the first member and the second member. The second through-hole and the third through-hole are through-holes used when fixing both the first member and the second member to the base. The first through-hole and the plurality of second through-holes are alternately arranged on the outer peripheral portion of the first member. The portion where the third through-hole is formed is constituted by a thin-walled portion (for example, the screw hole identification recess 724a shown in FIGS. 17(a), (b)) that is thinner than the periphery of the portion. The gaming machine is characterized by this.

[0327] According to the gaming machine according to this embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through-hole of the first member and the third through-hole of the second member. Therefore, the member attachment work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since it is possible to fix the second member to the base in a state where the first member is fixed and positioned on the base using the first through-hole, there is no need to position the two members at the same time, and the work efficiency can be improved. Further, since the first through-hole and the plurality of second through-holes are alternately arranged on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through-holes arranged on both sides of the first through-hole. Further, since the portion where the third through-hole is formed is a thin-walled portion having a thickness smaller than that around the portion, the stroke amount of the fixing means (for example, a screw) for fastening both the second through-hole of the first member and the third through-hole of the second member can be reduced, and the work efficiency can be improved. Further, since a part of the head of the fixing means can be accommodated in the thin-walled portion around the third through-hole, the fixing means can be made difficult to come off, and the first member and the second member can be stably fixed to the base. Further, the thin-walled portion formed around the third through-hole also functions as positioning when attaching the fixing means.

[0328] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 710 shown in FIGS. 16 and 17(c), (d)) that can be fixed to a base (for example, the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (for example, the back cover 720 shown in FIGS. 16 and 17(a), (b)) that can cover at least a part of the first member. The first member includes a first through-hole (for example, the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through-holes (for example, the common screw holes 716b shown in FIG. 17(d)) different from the first through-hole. The second member includes a plurality of third through-holes (for example, the screw holes 724 shown in FIG. 17(b)). The first through-hole is a through-hole used when fixing the first member of the first member and the second member to the base. The second through-hole and the third through-hole are through-holes used when fixing both the first member and the second member to the base. The first through-hole and the plurality of second through-holes are arranged in the order of the second through-hole, the first through-hole, and the second through-hole on the outer peripheral portion of the first member. In a state where the first member and the second member are fixed to the base, a part of the second member abuts against a support portion provided on the base, so that a space (for example, the box-shaped space 722S shown in FIGS. 17(a), (b)) is formed between the second member and the base. The gaming machine is characterized by this.

[0329] According to the gaming machine according to this embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through-hole of the first member and the third through-hole of the second member. Therefore, the member attachment work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since it is possible to fix the second member to the base in a state where the first member is fixed and positioned on the base using the first through-hole, there is no need to position the two members simultaneously, and the work efficiency can be improved. Further, since the first through-hole and the plurality of second through-holes are arranged in the order of the second through-hole, the first through-hole, and the second through-hole on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through-holes arranged on both sides of the first through-hole. Further, in a state where the first member and the second member are fixed to the base, a part of the second member abuts on a support portion provided on the base, so that a space is formed between the second member and the base. Therefore, even when the first member or the second member is fixed to the base and a part of the first member is covered by the second member, for example, the wiring of the first member can be drawn out to the outside, and the degree of freedom in design can be increased.

[0330] Further, the first member may be a member including an electrical component (for example, the electromagnetic circuit 711 shown in FIG. 19(b)) to which wiring (for example, the lead wire 717 shown in FIG. 19(b)) is connected, and the wiring may be configured to be drawn out to the outside of the first member and the second member through the space.

[0331] With such a configuration, even when a part of the first member is covered by the second member, the wiring of the first member can be drawn out to the outside, and the degree of freedom in design can be increased.

[0332] Further, the second member includes a space portion having a predetermined space (for example, the box-shaped space 722S shown in FIGS. 17(a) and (b)). The space portion is configured to be able to accommodate at least a part of the wiring. The space portion is composed of a first space portion having a vertically long rectangular parallelepiped shape (for example, the first space portion 722S1 shown in FIGS. 17(a) and (b)) and a second space portion having a horizontally long rectangular parallelepiped shape (for example, the second space portion 722S2 shown in FIGS. 17(a) and (b)). When the first member is covered with the second member, the space portion of the second member may be disposed between the first through hole and the second through hole of the first member.

[0333] With such a configuration, when fixing the second member to the base, a wider area can be taken in the region other than the portion where the base and the second member come into contact (around the through hole). Therefore, it is possible to prevent a situation where the wiring is sandwiched between the base and the second member.

[0334] Also, the first space portion and the second space portion may be disposed outside the third through hole (radially outside the second member) in the second member.

[0335] With such a configuration, a wide area can be secured when drawing out the wiring from between the second member and the base by the horizontally long rectangular parallelepiped-shaped second space portion. Also, by partially restricting the area for guiding the wiring by the vertically long rectangular parallelepiped-shaped first space portion, it is possible to prevent the wiring from approaching the vicinity of the through hole when the second member is fixed, which would interfere with the mounting operation.

[0336] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 710 shown in FIGS. 16, 17(c), and 17(d)) that can be fixed to a base (for example, the speaker pedestal portion 730 shown in FIGS. 16 and 19), and a second member (for example, the back cover 620 shown in FIGS. 16, 17(a), and 17(b)) that can cover at least a part of the first member. The first member includes a first through-hole (for example, the dedicated screw hole 716a shown in FIG. 17(d)) and a plurality of second through-holes (for example, the common screw holes 716b shown in FIG. 17(d)) different from the first through-hole. The second member includes a plurality of third through-holes (for example, the screw holes 724 shown in FIG. 17(b)). The first through-hole is a through-hole used when fixing the first member of the first member and the second member to the base. The second through-hole and the third through-hole are through-holes used when fixing both the first member and the second member to the base. The first through-hole and the plurality of second through-holes are alternately arranged on the outer peripheral portion of the first member. In a state where the first member and the second member are fixed to the base, a part of the second member abuts against a support portion provided on the base, so that a space (for example, the box-shaped space 722S shown in FIGS. 17(a) and 17(b)) is formed between the second member and the base. The gaming machine is characterized by this.

[0337] According to the gaming machine according to the present embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through hole of the first member and the third through hole of the second member. Therefore, the member attachment work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through hole, there is no need to position the two members simultaneously, and the work efficiency can be improved. Further, since the first through hole and the plurality of second through holes are alternately arranged on the outer peripheral portion of the first member, the two first members and the second member can be stably fixed by the second through holes arranged on both sides of the first through hole. Further, in a state where the first member and the second member are fixed to the base, a part of the second member abuts on a support portion provided on the base, so that a space is formed between the second member and the base. Therefore, even when the first member or the second member is fixed to the base and a part of the first member is covered by the second member, for example, the wiring of the first member can be drawn out to the outside, and the degree of freedom in design can be increased.

[0338] <Speaker mounting structure (Modification 2) / Configuration of speaker unit> Next, with reference to FIG. 20, the configuration of the speaker unit 800 according to Modification 2 will be described. FIG. 20(a) is an exploded perspective view of the speaker unit 800 according to Modification 2.

[0339] As shown in FIG. 20(a), the speaker unit 800 according to Modification 2 is composed of a speaker 810 (first member) for low-frequency output having a large diaphragm and a back cover 820 (second member) that covers the back side of the speaker 810, and is attached to a speaker pedestal portion 830 (base) formed below the back surface of the front door 102 of the slot machine.

[0340] In the slot machine (gaming table) according to this example, on the back surface of the front door 102, two speaker pedestals 830 are provided side by side at a predetermined interval in the horizontal direction, and a speaker unit 800 can be attached to each speaker pedestal 830.

[0341] FIG. 20(b) is an external perspective view showing a state where two speaker units 800 are attached to the back surface of the front door 102.

[0342] As shown in FIG. 20(b), the lead wires 817 of the left and right two speakers 810 pass through the inner space of the box-shaped space 822S of the back cover 820, are drawn out from the space formed between the back cover 820 and the speaker pedestal 830 to the outside, are wired along the back surface of the front door 102, and are electrically connected to sound output control means (for example, the sound source IC 418 of the first sub-control unit 400 and the second sub-control unit 500 described with reference to FIG. 3) disposed above the front door 102.

[0343] In this example, an example in which two speaker units 800 are arranged side by side in the horizontal direction on the back surface of the front door 102 is shown. However, three or more speaker units 800 may be arranged, or the speaker units 800 may be arranged side by side in the vertical direction or the diagonal direction on the back surface of the front door 102.

[0344] The speaker unit 800 can be attached in any of the following directions: the direction in which the box-shaped space 822S of the rear cover 820 and the lead terminals 816 of the speaker 810 face upward and the lead wire 817 of the speaker 810 is drawn out from above (the direction shown in Fig. 20(b). Hereinafter, it may be referred to as the "upward direction"), the direction in which the box-shaped space 822S of the rear cover 820 and the lead terminals 816 of the speaker 810 face right and the lead wire 817 of the speaker 810 is drawn out from the right (hereinafter, it may be referred to as the "rightward direction"), the direction in which the box-shaped space 822S of the rear cover 820 and the lead terminals 816 of the speaker 810 face downward and the lead wire 817 of the speaker 810 is drawn out from below (hereinafter, it may be referred to as the "downward direction"), and the direction in which the box-shaped space 822S of the rear cover 820 and the lead terminals 816 of the speaker 810 face left and the lead wire 817 of the speaker 810 is drawn out from the left (hereinafter, it may be referred to as the "leftward direction").

[0345] According to this example, since the speaker unit 800 can be disposed in the upward direction, the rightward direction, the downward direction, or the leftward direction with respect to the speaker pedestal portion 830, the degree of freedom in attaching the speaker unit 800 can be increased.

[0346] For example, in the attachment mode of the speaker unit 800 shown in Fig. 20(b), since the two speaker units 800 are both attached in the upward direction, after the lead wires 817 of the two speakers 810 are drawn out from above to the outside, the respective lead wires 817 can be gathered above the speaker unit 800, improving the efficiency of wiring work and maintainability. In particular, it is suitable for a gaming table where space can be secured above the speaker unit 800 (for example, a medal-less slot machine in which a hopper, medal selector, etc. are not disposed above the speaker unit 800, or an enclosed gaming machine in which a lower tray, etc. are not disposed above the speaker unit 800).

[0347] On the other hand, when applied to a gaming table where it is difficult to secure a space above the speaker unit 800 (for example, a slot machine in which a hopper, medal selector, etc. are arranged above the speaker unit 800, or a pachinko machine in which a lower plate, etc. is arranged above the speaker unit 800), if the two speaker units 800 are attached in any direction other than the upward direction, i.e., the downward direction, the rightward direction, or the leftward direction, the lead wire 817 of the speaker 810 can be routed around other devices arranged above the speaker unit 800, improving the efficiency of the wiring work and effectively utilizing the limited space on the back of the front door 102.

[0348] Also, by making the orientations of the two speaker units 800 different, the directions in which the lead wires 817 of the speakers 810 are drawn out may be different. For example, if the speaker unit 800 arranged on the left side when viewed from the back of the front door 102 is attached in the rightward direction, while the speaker unit 800 arranged on the right side when viewed from the back of the front door 102 is attached in the leftward direction, the lead wires 817 of the speakers 810 can be drawn out from the two speaker units 800 toward the center of the back of the front door 102, improving the efficiency and maintainability of the wiring work.

[0349] Also, the length of the lead wire 817 of the speaker 810 is not particularly limited, and it only needs to have a length that can be electrically connected from the speaker 810 to the sound output control means (for example, the sound source IC 418 of the first sub-control unit 400 or the second sub-control unit 500 described with reference to FIG. 3). However, for example, if it is set as the minimum necessary length when the speaker unit 800 is attached in the upward direction, and configured such that the length of the lead wire 817 is insufficient and cannot be connected to the sound output control means when attempting to attach the speaker unit 800 in a direction other than the upward direction, the attachment orientation of the speaker unit 800 can be deliberately restricted, and the attachment orientations of the speaker units 800 on the gaming table can be unified.

[0350] <Speaker mounting structure (Modification 2) / Speaker pedestal part> As shown in FIG. 20(a), the speaker pedestal portion 830 (base) includes an annular diaphragm support portion 831 that supports the outer edge portion 813a of the diaphragm 813 of the speaker 810 (see FIG. 22; the portion that supports the outer edge of the cone of the diaphragm 813), four cylindrical mounting sleeves 832 for screwing the speaker 810 and the back cover 820 to the front door 102, and a horizontally long elliptical sound hole plate 834 that is fitted inside the diaphragm support portion 831. The detailed configuration of the speaker pedestal portion 830 (base) will be described later with reference to FIG. 23.

[0351] Also, in the space formed by the diaphragm support portion 831 and the back surface of the front door 102, one of a plurality of cylindrical bosses 835 for fixing the title panel 162 (see FIG. 1) attached to the lower front of the front door 102 is disposed.

[0352] According to this example, since a member not related to the speaker unit 800 or the speaker pedestal portion 830 (in this example, the boss 835 for fixing the title panel 162) can be accommodated in the space formed by the diaphragm support portion 831 and the back surface of the front door 102, the limited space on the back surface of the front door 102 can be effectively utilized, and space saving on the back surface of the front door 102 can be achieved.

[0353] <Speaker Mounting Structure (Modification 2) / Speaker, Back Cover> Next, with reference to FIGS. 21 and 22, the speaker 810 and the back cover 820 that constitute the speaker unit 800 according to Modification 2 will be described in detail.

[0354] FIG. 21(a) is a side view of the back cover 820, and FIG. 21(b) is a top view of the back cover 820. Also, FIG. 21(c) is a side view of the speaker 810, and FIG. 21(d) is a top view of the speaker 810. Further, FIG. 22 is a plan view of the state in which the speaker 810 is accommodated in the inner space of the back cover 820 as viewed from the lower surface side of the speaker 810.

[0355] <Speaker Mounting Structure (Modification 2) / Speaker> The speaker 810 (first member) is a cone-type dynamic speaker, and as shown in Fig. 21(c), it generally consists of a voice coil and a magnet, and an electromagnetic circuit 811 (electrical component) that vibrates a diaphragm 813 described later in response to an electrical signal, a frame 812 that supports this electromagnetic circuit 811, a diaphragm 813 that vibrates to generate sound, a flat plate-shaped flange 814 to which this diaphragm 813 is fixedly arranged so as to be vibratable, a lead terminal 816 disposed on the upper side in a top view of this flange 814, and a lead wire 817 (wiring) detachably connected to this lead terminal 816.

[0356] The frame 812 is a cylindrical metal ring frame that slightly expands forward, and on the side surface, a plurality of openings 815 (see Fig. 20) for discharging the air around the diaphragm 813 are formed along the circumferential direction. That is, on the side surface of the frame 812, a plurality of openings 815 are formed along the circumferential direction, and between the openings 815, a support column 812a (see Fig. 20) is formed along the front-rear direction. The diaphragm 813 is formed in a cone shape that opens forward using a flexible material such as paper, for example.

[0357] As shown in Fig. 21(d), at the upper left corner and the lower right corner of the outer end of the flange 814, elliptical dedicated screw holes 816a (first through holes) for screwing the speaker 810 to the speaker pedestal portion 830 are respectively formed. Also, at the lower left corner and the upper right corner of the outer end of the flange 814, elliptical common screw holes 816b (second through holes) for screwing the speaker 810 and the back cover 820 to the speaker pedestal portion 830 are respectively formed.

[0358] The size and shape of the dedicated screw hole 816a (first through hole) and the common screw hole 816b (second through hole) are not particularly limited, but in this example, as shown in Fig. 22, the dedicated screw hole 816a (first through hole) and the common screw hole 816b (second through hole) are holes that are larger than the circular screw hole 824 (third through hole) of the back cover 820 and smaller than the circular through hole 825 (fourth through hole) of the back cover 820.

[0359] In this example, two dedicated screw holes 816a (first through holes) are arranged diagonally (at the vertices of the diagonal ends) at the upper left corner and the lower right corner on the outer edge of the flange 814, and two shared screw holes 816b (second through holes) are arranged diagonally (at the vertices of the diagonal ends) at the lower left corner and the upper right corner on the outer edge of the flange 814. Thereby, the dedicated screw holes 816a (first through holes) and the shared screw holes 816b (second through holes) are alternately arranged at predetermined intervals in the circumferential direction along the outer edge of the flange 818.

[0360] In other words, as shown in FIG. 21(d), when a plurality of dedicated screw holes 816a (first through holes) and the shared screw holes 816b (second through holes) adjacent to both sides of these plurality of dedicated screw holes 816a (first through holes) are connected by an imaginary straight line VL, an imaginary quadrilateral VQ is formed. The plurality of dedicated screw holes 816a (first through holes) are arranged on the (first) diagonal line (at the vertices of the diagonal ends) of the imaginary quadrilateral VQ, and the plurality of shared screw holes 816b (second through holes) are configured to be arranged on the (second diagonal line different from the first diagonal line) diagonal line (at the vertices of the diagonal ends) of the imaginary quadrilateral VQ.

[0361] Also, focusing on the distance between the dedicated screw hole 816a (first through hole) and the shared screw hole 816b (second through hole), as shown in FIG. 21(d), the shortest distance L3 from the dedicated screw hole 816a (first through hole) arranged at the upper left corner to one of the two through holes of the two shared screw holes 816b (second through holes) (for example, the shared screw hole 816b arranged at the upper right corner) and the shortest distance L4 from the dedicated screw hole 816a (first through hole) arranged at the upper left corner to another through hole different from the one through hole among the second through holes of the two shared screw holes 816b (second through holes) (for example, the shared screw hole 816b arranged at the lower left corner) are substantially the same.

[0362] According to this example, when the speaker 810 (the first member) is fixed to the speaker pedestal portion 830 (the base) using the dedicated screw hole 816a (the first through hole) for positioning, or when only the rear cover 820 (the second member) is removed from the speaker pedestal portion 830 (the base), the speaker 810 (the first member) can be stably fixed, enhancing safety and workability.

[0363] Also, as described above, the speaker unit 800 can be disposed in the upward, rightward, downward, or leftward direction with respect to the speaker pedestal portion 830, and the lead terminals 816 of the speaker 810 can be disposed facing upward, rightward, downward, or leftward. Therefore, the degree of freedom in attaching the speaker 810 can be increased.

[0364] <Speaker mounting structure (Modification 2) / Rear cover> Next, the rear cover 820 (the second member) will be described.

[0365] The rear cover 820 (the second member) is a colored transparent resin member capable of accommodating the speaker 810 inside, and is a member made of a material that allows the speaker 810 (the first member) to be visually recognized from the outside when the speaker 810 (the first member) is accommodated inside.

[0366] According to this example, since at least a part of the speaker 810 (the first member) can be visually recognized through the rear cover 820 (the second member), the fixing position of the speaker 810 (the first member) with respect to the speaker pedestal portion 830 (the base), the positional relationship between the speaker 810 (the first member) and the rear cover 820 (the second member), etc. can be confirmed, enhancing the convenience in the member mounting work.

[0367] Note that the rear cover 820 only needs to be a member having transparency, and its material is not limited to colored transparent resin. For example, it may be colorless transparent (or translucent) plastic, acrylic, polycarbonate, polyvinyl chloride, glass, metal, etc.

[0368] As shown in FIGS. 21(a) and (b), the back cover 820 is formed with an annular cover portion 821 that covers a part of the rear end of the speaker 810 on the back side. With this cover portion 821 as the base end, it is provided with a cylindrical side wall portion 822 that slightly expands rearward.

[0369] Above the upper surface view of the cover portion 821, a predetermined display 826 (in this example, part number and material) is provided. The display mode of the predetermined display 826 is not particularly limited. In this example, on the surface of the cover portion 821, on the left side of the location where the lead terminal 816 of the speaker 810 can be seen through when the speaker 810 is covered by the back cover 820, a part number display representing the part number of the back cover 820 (in this example, the display of the character string "SPxxxx") is engraved, and on the right side of the location where the lead terminal 816 of the speaker 810 can be seen through when the speaker 810 is covered by the back cover 820, a material display representing the material of the back cover 820 (in this example, the display of the character string "PC") is engraved.

[0370] That is, when looking at the speaker 810 through the back cover 820, a part number display (in this example, the display of the character string "SPxxxx") is visible on the left side of the lead terminal 816 of the speaker 810, and a material display (in this example, the display of the character string "PC") is visible on the right side of the lead terminal 816 of the speaker 810.

[0371] According to this example, in addition to the predetermined display 826 being provided on the back cover 820, when looking at the speaker 810 through the back cover 820, since the lead terminal 816 of the speaker 810 is visible, the correct orientation (mounting direction) of the back cover 820 can be easily identified based on the orientation of the predetermined display 826 and whether the lead terminal 816 of the speaker 810 is visible at the center of the predetermined display 826, and the convenience during the mounting of the back cover 820 and the like can be improved.

[0372] Further, as shown in FIG. 21(b), the rear cover 820 includes two protruding pieces 823a and two protruding pieces 823b with screw holes that protrude outward from the outer edge of the side wall portion 822.

[0373] In this example, the two protruding pieces 823a are arranged diagonally (at the vertices of the diagonal ends) at the upper left corner and the lower right corner at the outer edge of the side wall portion 822, and the two protruding pieces 823b with screw holes are arranged diagonally (at the vertices of the diagonal ends) at the lower left corner and the upper right corner at the outer edge of the side wall portion 822. Thus, the protruding pieces 823a and the protruding pieces 823b with screw holes are alternately arranged at predetermined intervals in the circumferential direction along the outer edge of the side wall portion 822.

[0374] In other words, as shown in FIG. 21(b), when the vertices of the plurality of protruding pieces 823a and the protruding pieces 823b with screw holes adjacent to both sides of the plurality of protruding pieces 823a are connected by a virtual straight line VL2, a virtual quadrilateral VQ2 is formed. The plurality of protruding pieces 823a are arranged on the (first) diagonal line (at the vertices of the diagonal ends) of the virtual quadrilateral VQ2, and the plurality of protruding pieces 823b with screw holes are configured to be arranged on the (second diagonal line different from the first diagonal line) diagonal line (at the vertices of the diagonal ends) of the virtual quadrilateral VQ2.

[0375] Circular screw holes 824 (third through holes) for screwing the speaker 810 and the rear cover 820 integrally to the speaker pedestal portion 730 are formed in the protruding pieces 823b with screw holes arranged diagonally (at the vertices of the diagonal ends) at the lower left corner and the upper right corner.

[0376] With such a configuration, the common screw hole 816b (second through hole) of the speaker 810 and the screw hole 824 (third through hole) of the rear cover 820 are fastened to the speaker pedestal portion 830 (base) with screws 840 (fixing means; see FIG. 20), so that the speaker unit 800 is integrated and fixed to the speaker pedestal portion 730. The mounting method of the speaker unit 800 will be described later.

[0377] In addition, in the vicinity of the screw hole 824 in the side wall portion 822, a screw hole identification groove 822a formed by a linear groove extending from the lower side to the upper side of the side wall portion 822 is formed. That is, in this example, since the screw hole identification groove 822a is formed in the vicinity of the screw hole 824, the screw hole 824 is configured to be distinguishable.

[0378] According to this example, since at least one through hole (in this example, the screw hole 824 (the third through hole)) among the dedicated screw hole 816a (the first through hole), the shared screw hole 816b (the second through hole), and the screw hole 824 (the third through hole) is configured to be distinguishable, it can be easily determined whether each through hole is a through hole used when only the speaker 810 (the first member) is fixed to the speaker pedestal portion 830 (the base), or a through hole used when both the speaker 810 (the first member) and the back cover 820 (the second member) are fixed to the speaker pedestal portion 830 (the base), and the efficiency of the member mounting work can be improved. Further, by using the screw hole identification groove 822a as a clue, the correct orientation (mounting direction) of the back cover 820 can be easily identified, and the convenience during the mounting of the back cover 820 and the like can be improved.

[0379] Note that, in this example, as a configuration for making the screw hole 824 (the third through hole) distinguishable, an example of forming the screw hole identification groove 822a in the vicinity of the screw hole 824 (the third through hole) is shown. However, the present invention is not limited to this. For example, a distinguishable portion for the screw hole 824 (the third through hole) may be formed in a member other than the back cover 820 (the second member) (for example, the speaker pedestal portion 830 (the base) or the speaker 810 (the first member)), a seal or the like that can distinguish the screw hole 824 (the third through hole) may be attached, or a display, printing, engraving, etc. that can distinguish the screw hole 824 (the third through hole) may be performed.

[0380] In addition, although a configuration for making the screw hole 824 (third through hole) of the back cover 820 distinguishable has been illustrated, instead of (or in addition to) this, a configuration for making the dedicated screw hole 816a (first through hole) of the speaker 810 (first member), and / or the common screw hole 816b (second through hole) distinguishable may be adopted.

[0381] Therefore, for example, on the mounting sleeve 832 of the speaker pedestal portion 830 (base), a portion where at least one of the dedicated screw hole 816a (first through hole), the common screw hole 816b (second through hole), and the screw hole 84 (third through hole) is distinguishable is formed, or a seal or the like where at least one through hole is distinguishable is attached, or a display, printing, engraving, etc. where at least one through hole is distinguishable is performed. Also, on the flange 814 of the speaker 810 (first member), a portion where the dedicated screw hole 816a (first through hole), and / or the common screw hole 816b (second through hole) is distinguishable is formed, or a seal or the like where the dedicated screw hole 816a (first through hole), and / or the common screw hole 816b (second through hole) is distinguishable is attached, or a display, printing, engraving, etc. where the dedicated screw hole 816a (first through hole), and / or the common screw hole 816b (second through hole) is distinguishable is performed.

[0382] Further, by making the shape of the protruding piece 823b with a screw hole of the back cover 820 different from the shape of the protruding piece 823a, it may be made distinguishable that the through hole formed in the protruding piece 823b with a screw hole is the through hole used when fixing both the speaker 810 (first member) and the back cover 820 (second member) to the speaker pedestal portion 830 (base). Conversely, by making the shape of the protruding piece 823a of the back cover 820 different from the shape of the protruding piece 823b with a screw hole, it may be made distinguishable that the through hole of the speaker 810 corresponding to the protruding piece 823a is the through hole used when fixing only the speaker 810 (first member) to the speaker pedestal portion 830 (base).

[0383] With such a configuration, based on the shape of the protruding piece of the back cover 820, it becomes possible to visually identify the role of the through hole, and the work efficiency can be improved.

[0384] Also, as shown in FIG. 21(b), through holes 825 (fourth through holes) having an inner diameter larger than the inner diameter of the screw holes 824 (third through holes) are formed in the protruding pieces 823a arranged diagonally at the upper left and lower right corners of the back cover 820.

[0385] As shown in FIG. 22, this through hole 825 (fourth through hole) has an inner diameter larger than the elliptical common screw hole 816b (second through hole) of the speaker 810, and as shown in FIG. 23(d), it has an inner diameter larger than the outer diameter of the head of the screw 840.

[0386] With such a configuration, after fixing only the speaker 810 to the back surface of the front door 102 by fastening the dedicated screw hole 816a (first through hole) of the speaker 810 to the speaker pedestal portion 830 (base) with the screw 840, even when the back cover 820 is positioned with respect to the back surface of the speaker 810, the screw 840 attached to the dedicated screw hole 816a of the speaker 810 can be accommodated without contacting the through hole 825, and the screw 840 does not interfere with the back cover 820. Therefore, due to the positional relationship between the through hole 825 (fourth through hole) and the screw 840, it is possible to easily confirm visually that the back cover 820 is attached to the correct position with respect to the speaker 810, and the positioning of the back cover 820 with respect to the speaker 810 can be accurately performed.

[0387] In addition, when the positioning of the rear cover 820 with respect to the speaker 810 is performed accurately, the screw 840 is accommodated inside the through hole 825, and the horizontal movement of the rear cover 820 is restricted by the screw 840. Therefore, when the rear cover 820 is attached, displacement and rattling of the rear cover 820 can be suppressed. Further, since the through hole 825 (the fourth through hole) has an inner diameter larger than that of the elliptical common screw hole 816b (the second through hole) of the speaker 810, assembly errors (displacement of the rear cover 820) of the rear cover 820 with respect to the speaker 810 can be absorbed, and the attachment work can be simplified.

[0388] In addition, in this example, an example in which a through hole is formed in the protruding piece 823a of the rear cover 820 is shown, but the present invention is not limited to this. For example, instead of the through hole, a portion such as a recess or a notch in the protruding piece 823a where the screw 840 does not interfere may be formed, or the protruding piece 823a itself may be removed from the rear cover 820. That is, when the speaker 810 is fixed to the back surface of the front door 102 by the screw 840, the screw 840 attached to the dedicated screw hole 816a of the speaker 810 may be configured not to interfere with the rear cover 820.

[0389] As shown in FIG. 21(b), a box-shaped space 822S (space portion) for accommodating the lead terminal 816 of the speaker 810 and guiding the lead wire 817 to the outside of the speaker unit 800 is formed to protrude at the outer edge on the upper side in a top view of the rear cover 820.

[0390] With such a configuration, as shown in FIG. 22, in a state where the speaker 810 (the first member) is accommodated inside the rear cover 820 (the second member), a space SP is formed between the speaker 810 (the first member) and the rear cover 820 (the second member), and the lead wire 817 (wiring) of the speaker 810 can be drawn out to the outside of the speaker 810 (the first member) and the rear cover 820 (the second member) through the space SP.

[0391] According to this example, even when a part of the speaker 810 (first member) is covered by the back cover 820 (second member), the lead wire 817 (wiring) of the speaker 810 (first member) can be drawn out to the outside, enhancing the design freedom.

[0392] Also, as shown in FIG. 22, four ribs 827 that can abut against four flange corners 814a of the flange 814 of the speaker 810 project from the inner side of the bottom surface of the back cover 820, and the shape of the lower edge 820a of the back cover 820 is formed into a curved surface shape substantially the same as the outer edge of one side of the flange 814 of the speaker 810.

[0393] According to this example, by bringing the four ribs 827 of the back cover 820 into contact with any of the four flange corners 814a of the flange 814 of the speaker 810 and bringing the lower edge 820a of the back cover 820 into contact with the outer edge of one side of the flange 814 of the speaker 810, the positioning of the speaker 810 with respect to the back cover 820 can be easily and surely performed, and the speaker 810 and the back cover 820 can be integrated. Therefore, by the attaching method 2 described later, the speaker 810 and the back cover 820 can be attached to the speaker pedestal portion 830 in an integrated state, simplifying the attaching operation of the speaker unit 800.

[0394] Also, as described above, the speaker unit 800 can be disposed in the upward, rightward, downward, or leftward direction with respect to the speaker pedestal portion 830, and the box-shaped space 822S of the back cover 820 can be disposed facing upward, rightward, downward, or leftward. Therefore, the freedom in attaching the back cover 820 can be enhanced.

[0395] As described above, since the predetermined display 826 is provided on the rear cover 820, when attaching the rear cover 820 to the speaker pedestal portion 830, it is preferable to attach it in an upward direction with the side having the predetermined display 826 facing up so that the predetermined display 826 is easily visible. However, even when the rear cover 820 is attached in the rightward, downward, or leftward direction, although the orientation of the predetermined display 826 is reversed, it can still be attached to the speaker pedestal portion 830 without any change.

[0396] <Speaker mounting structure (Modification 2) / Speaker pedestal portion> Next, with reference to FIG. 23, the speaker pedestal portion 830 (base) will be described in detail.

[0397] FIGS. 23(a) to (d) are diagrams showing an example of the mounting method of the speaker unit 800 in time series. FIG. (a) of the same figure shows the speaker pedestal portion 830 with the sound hole plate 834 removed.

[0398] As described with reference to FIG. 20(a), the speaker pedestal portion 830 (base) includes an annular diaphragm support portion 831 that supports the outer edge portion 813a of the diaphragm 813 of the speaker 810 (see FIG. 22, the portion that supports the outer edge of the cone of the diaphragm 813), four mounting sleeves 832 (832a, 832b) for screwing the speaker 810 and the rear cover 820 to the front door 102, and a horizontally long elliptical sound hole plate 834 that is fitted inside the diaphragm support portion 831, etc.

[0399] The height of the frame support portion 831 (the height from the back surface of the front door 102) is designed to be higher than the maximum vibration width of the diaphragm 813 so as not to inhibit the vibration of the diaphragm 813 of the speaker 810. Inside it, as shown in FIG. 23(b), the sound hole plate 834 is fitted.

[0400] As shown in FIG. 23(c), when the speaker 810 is attached to the speaker pedestal portion 830, the outer edge portion 813a of the diaphragm 813 of the speaker 810 abuts against the frame support portion 831, and a sealed space is formed by the speaker pedestal portion 830 and the diaphragm 813 of the speaker 810.

[0401] According to this example, the periphery of the diaphragm 813 of the speaker 810 can be supported by the frame support portion 831, and a sealed space can be formed by the speaker pedestal portion 830 and the diaphragm 813 of the speaker 810. Therefore, the sound output from the diaphragm 813 of the speaker 810 can be efficiently output toward the front surface of the front door 102 through the sound hole plate 834, and the acoustic effect can be enhanced.

[0402] Among the four mounting sleeves 832, the first mounting sleeve 832a disposed at the upper left corner and the lower right corner in the top view is a mounting sleeve in which the dedicated screw hole 816a (first through hole) of the speaker 810 is fastened by a screw 840, as shown in FIG. 23(c).

[0403] On the other hand, among the four mounting sleeves 832, the second mounting sleeve 832b disposed at the lower left corner and the upper right corner in the top view is a mounting sleeve in which the common screw hole 816b (second through hole) of the speaker 810 and the screw hole 824 (third through hole) of the back cover 820 are fastened by a screw 840, as shown in FIG. 23(d).

[0404] Also, on the outer peripheral portions of each of the four mounting sleeves 832 (832a, 832b), two cylindrical ribs 838 on which the four flange corners 814a (see FIG. 22) of the flange 814 of the speaker 810 can be placed are formed at predetermined intervals.

[0405] According to this example, when attaching the speaker 810 to the speaker pedestal portion 830, by placing the flange corner portion 814a of the flange 814 of the speaker 810 on the rib 838 of the mounting sleeve 832, the positioning of the speaker 810 can be easily and surely performed, and displacement and rattling of the speaker 810 during attachment of the speaker 810 can be suppressed.

[0406] <Speaker mounting structure (Modification 2) / Mounting method 1> Next, the mounting method 1 of the speaker unit 800 will be described with reference to FIG. 23.

[0407] When attaching the speaker unit 800 to the speaker pedestal portion 830, first, as shown in FIGS. 23(b) and (c), after attaching the speaker 810 to the speaker pedestal portion 830, next, as shown in FIGS. 23(c) and (d), attach the rear cover 820 to the speaker pedestal portion 830.

[0408] More specifically, when attaching the speaker 810 to the speaker pedestal portion 830, with the position of the lead terminal 816 of the speaker 810 facing upward, by placing the flange corner portion 814a of the flange 814 on the rib 838 of the mounting sleeve 832, while aligning the dedicated screw hole 816a of the speaker 810 with the first mounting sleeve 832a, by bringing the outer edge portion 813a of the diaphragm 813 of the speaker 810 into contact with the frame support portion 831, the positioning of the speaker 810 with respect to the speaker pedestal portion 830 is performed.

[0409] Subsequently, as shown in FIG. 23(c), the dedicated screw hole 816a of the speaker 810 is aligned with the hole of the first mounting sleeve 832a of the speaker pedestal portion 830 and fastened with a screw 840, thereby attaching only the speaker 810 to the speaker pedestal portion 830.

[0410] Note that since the lead terminals 816 of the speaker 810 and the lead wire 817 are detachably configured, even when the wiring of the lead wire 817 up to the speaker pedestal portion 830 is completed, the speaker 810 can be rotated 90 degrees, 180 degrees, or 270 degrees and attached to the speaker pedestal portion 830, and the lead terminals 816 and the lead wire 817 can be connected later. Even when the speaker 810 is attached to the speaker pedestal portion 830, it is possible to change the wiring of the lead wire 817 and connect the lead terminals 816 and the lead wire 817 later.

[0411] Next, when attaching the rear cover 820 to the speaker pedestal portion 830, with the position of the box-shaped space 822S of the rear cover 820 aligned with the lead terminals 816 of the speaker 810 and facing upward, align the screw holes 824 of the rear cover 820 with the second mounting sleeve 832b, and cover the speaker 810 with the rear cover 820 to position the rear cover 820 with respect to the speaker pedestal portion 830.

[0412] Subsequently, as shown in FIG. 23(d), align the screw holes 824 of the rear cover 820 with the common screw holes 816b of the speaker 810 and the holes of the second mounting sleeve 832b of the speaker pedestal portion 830, and fasten with screws 840 to attach the rear cover 820 to the speaker pedestal portion 830. Thereby, the speaker unit 800 is integrated and fixed to the back surface of the front door 102.

[0413] According to this example, when fixing the speaker 810 and the rear cover 820 to the speaker pedestal portion 830 with screws 840, it is possible to fix them at once with one screw 840 through the common screw holes 816b of the speaker 810 and the screw holes 824 of the rear cover 820, so that the member attachment work can be simplified compared to the prior art. Also, since it is possible to fix the rear cover 820 to the speaker pedestal portion 830 with the speaker 810 fixed to the base and positioned using the dedicated screw holes 816a, there is no need to position the two members simultaneously, and the work efficiency can be improved.

[0414] Also, when the speaker unit 800 is correctly installed and the speaker 810 (the first member) is covered with the rear cover 820 (the second member), as shown in FIG. 23(d), the screw 840 attached to the dedicated screw hole 816a of the speaker 810 can be accommodated without contacting the inside of the through hole 825 (the fourth through hole), and since the screw 840 does not interfere with the rear cover 820, it is possible to easily visually confirm that the rear cover 820 is attached to the correct position with respect to the speaker 810 based on the positional relationship between the through hole 825 (the fourth through hole) and the screw 840. In addition to being able to accurately position the rear cover 820 with respect to the speaker 810, when the rear cover 820 is accurately positioned with respect to the speaker 810, the screw 840 is accommodated inside the through hole 825, and the horizontal movement of the rear cover 820 is restricted by the screw 840. Therefore, when attaching the rear cover 820, it is possible to suppress displacement and rattling of the rear cover 820.

[0415] In particular, when using a screw as the fixing means, if the tightening of the screw is loose when the speaker 810 (the first member) is fixed to the speaker pedestal portion 830 (the base), the head of the screw may protrude more than necessary from the dedicated screw hole 816a (the first through hole). However, since the through hole 825 (the fourth through hole) is formed in the rear cover 820, it is possible to avoid the risk of interference between the rear cover 820 (the second member) and the head of the screw.

[0416] In other words, when the speaker unit 800 is correctly installed and the speaker 810 (first member) is covered with the rear cover 820 (second member), the dedicated screw hole 816a (first through hole) of the speaker 810 (first member) is configured not to be covered by the rear cover 820 (second member), and the screw 840 is configured to contact only the speaker 810 (first member). Therefore, even when the rear cover 820 (second member) is positioned with respect to the speaker pedestal portion 830 (base), the dedicated screw hole 816a (first through hole) of the speaker 810 (first member) will not be made difficult to see by the rear cover 820 (second member), and the mounting work can be efficiently performed. Moreover, even when the speaker 810 (first member) and the rear cover 820 (second member) are first fixed to the speaker pedestal portion 830 (base) using the common screw hole 816b (second through hole) of the speaker 810 and the screw hole 824 (third through hole) of the rear cover 820, it is then possible to fix the speaker 810 (first member) using the dedicated screw hole 816a (first through hole), enhancing the convenience of the mounting work.

[0417] Furthermore, when attaching the speaker 810 and the rear cover 820, a common screw 840 (a screw having the same length and thickness) can be used. Therefore, there is no need to distinguish between multiple types of screws, enhancing convenience. Additionally, screw mounting mistakes can be eliminated, and the members can be securely attached.

[0418] Note that when attaching the speaker 810 and the rear cover 820, in order to use the common screw 840, the length of the screw 840 needs to be at least as long as the sum of the thickness of the screw hole 824 of the rear cover 820 and the thickness of the common screw hole 816b of the speaker 810.

[0419] Therefore, when the common screw 840 is used to fasten the dedicated screw hole 816a of the speaker 810, the length of the screw becomes excessive by the thickness of the back cover 820. However, in this example, since the screw 840 attached to the dedicated screw hole 816a of the speaker 810 can be accommodated inside the through hole 825 (the fourth through hole), the screw 840 does not interfere with the back cover 820.

[0420] Also, as shown in FIG. 23(d), when the speaker 810 and the back cover 820 are attached to the speaker pedestal portion 830, the four attached screws 840 are visible. Therefore, even if an unauthorized person tries to remove the speaker unit 800, it can be made to seem that it will take time to remove, and unauthorized acts and the like can be prevented.

[0421] Also, when the speaker 810 and the back cover 820 are attached to the speaker pedestal portion 830, since the speaker 810 and the back cover 820 are supported by the four mounting sleeves 832 of the speaker pedestal portion 830, a predetermined space is formed between the speaker 810 and the back cover 820 and the speaker pedestal portion 830.

[0422] Also, as described with reference to FIG. 22, in a state where the speaker 810 is covered with the back cover 820, a space SP is also formed between the speaker 810 and the back cover 820.

[0423] With such a configuration, spaces are formed between the speaker pedestal portion 830 (base) and the back cover 820 (second member), and between the speaker 810 (first member) and the back cover 820 (second member), and the lead wire 817 (wiring) of the speaker 810 can be drawn out to the outside of the speaker 810 (first member) and the back cover 820 (second member) through these spaces.

[0424] <Mounting Structure of Speaker (Modification 2) / Mounting Method 2> Next, the mounting method 2 of the speaker unit 800 will be described.

[0425] In the speaker unit 800, first, even when the speaker 810 and the rear cover 820 are attached to the speaker pedestal portion 830 using the common screw holes 816b of the speaker 810 and the screw holes 824 of the rear cover 820, the dedicated screw holes 816a of the speaker 810 can be fastened with screws 840 later.

[0426] More specifically, when first integrating the speaker 810 and the rear cover 820 and attaching them to the speaker pedestal portion 830, with the positions of the lead terminals 816 of the speaker 810 and the box-shaped space 822S of the rear cover 820 aligned, the speaker 810 is covered with the rear cover 820 and integrated. By aligning the common screw holes 816b of the speaker 810 and the screw holes 824 of the rear cover 820 with the second mounting sleeve 832b, the positions of the speaker 810 and the rear cover 820 are positioned with respect to the speaker pedestal portion 830.

[0427] Subsequently, the common screw holes 816b of the speaker 810 and the screw holes 824 of the rear cover 820 are overlapped with the holes of the second mounting sleeve 832b and fastened with screws 840, thereby attaching the speaker 810 and the rear cover 820 together to the speaker pedestal portion 830.

[0428] And when completely attaching the speaker 810 to the speaker pedestal portion 830, the dedicated screw holes 816a of the speaker 810 are aligned with the first mounting sleeve 832a to position the speaker 810 with respect to the speaker pedestal portion 830.

[0429] Subsequently, the dedicated screw holes 816a of the speaker 810 are overlapped with the holes of the first mounting sleeve 832a of the speaker pedestal portion 830 and fastened with screws 840, thereby attaching only the speaker 810 to the speaker pedestal portion 830. Thereby, the speaker unit 800 is integrated and fixed to the back surface of the front door 102.

[0430] According to this example, depending on the skill of the operator, an appropriate mounting method can be selected from among a plurality of mounting methods (mounting methods 1 and 2), and the work efficiency can be improved.

[0431] <Summary of the Speaker Mounting Structure (Modification 2)> As described above, the gaming table according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 810 shown in FIGS. 20, 21(c), and (d)) that can be fixed to a base (for example, the speaker pedestal portion 830 shown in FIGS. 20 and 23), and a second member (for example, the back cover 820 shown in FIGS. 20 and 21(a) and (b)) that can cover at least a part of the first member. The gaming table is configured such that the first member includes a plurality of first through-holes (for example, the dedicated screw holes 816a shown in FIG. 21(d)) and a plurality of second through-holes (for example, the common screw holes 816b shown in FIG. 21(d)) different from the first through-holes. The second member includes a plurality of third through-holes (for example, the screw holes 824 shown in FIG. 21(b)). The first through-holes are through-holes used when fixing the first member to the base among the first member and the second member. The second through-holes and the third through-holes are through-holes used when fixing both the first member and the second member to the base. When the plurality of first through-holes and the second through-holes adjacent to both sides of the plurality of first through-holes are connected by a virtual straight line (for example, the straight line VL shown in FIG. 21(d)), a virtual quadrilateral (for example, the quadrilateral VQ shown in FIG. 21(d)) is formed. The plurality of first through-holes are configured to be arranged at the vertices of the ends of the virtual quadrilateral. The base includes a frame portion (for example, the diaphragm support portion 831 shown in FIGS. 20 and 23(a)) formed in accordance with the shape of the first member (for example, the outer edge portion 813a of the diaphragm 813 of the speaker 810). The gaming table is characterized by the above.

[0432] According to the gaming table according to the present embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through hole of the first member and the third through hole of the second member. Therefore, the member attachment work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through hole, it is not necessary to position the two members at the same time, and the work efficiency can be improved. Further, the first through hole is disposed between the plurality of second through holes, and when the plurality of first through holes and the second through holes on both sides of the plurality of first through holes are connected by virtual straight lines, a virtual quadrilateral is formed. The plurality of first through holes are configured to be disposed at the vertices of the ends of the virtual quadrilateral. Therefore, the two first members and the second member can be stably fixed by the second through holes disposed on both sides of the first through hole. Further, since the base includes a frame portion formed in accordance with the shape of the first member, the first member can be attached to the base in a state where the first member is reliably positioned with respect to the base, and the attachment work can be efficiently performed. Further, the first member can be stably fixed to the base by the frame portion.

[0433] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 810 shown in FIGS. 20 and 21(c), (d)) that can be fixed to a base (for example, the speaker pedestal portion 830 shown in FIGS. 20 and 23), and a second member (for example, the rear cover 820 shown in FIGS. 20 and 21(a), (b)) that can cover at least a part of the first member. The gaming machine is configured such that the first member includes a plurality of first through-holes (for example, the dedicated screw holes 816a shown in FIG. 21(d)) and a plurality of second through-holes (for example, the shared screw holes 816b shown in FIG. 21(d)) different from the first through-holes. The second member includes a plurality of third through-holes (for example, the screw holes 824 shown in FIG. 21(b)). The first through-holes are the through-holes used when fixing the first member of the first member and the second member to the base. The second through-holes and the third through-holes are the through-holes used when fixing both the first member and the second member to the base. When the plurality of first through-holes and the second through-holes adjacent to both sides of the plurality of first through-holes are connected by a virtual straight line (for example, the straight line VL shown in FIG. 21(d)), a virtual quadrilateral (for example, the quadrilateral VQ shown in FIG. 21(d)) is formed. The plurality of first through-holes are configured to be arranged at the vertices at the ends of the diagonal lines of the virtual quadrilateral. In a state where the first member and the second member are fixed to the base, a part of the second member abuts against a support portion provided on the base, so that a space is formed between the second member and the base. The gaming machine is characterized by this configuration.

[0434] According to the gaming machine according to the present embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through-hole of the first member and the third through-hole of the second member. Therefore, the member mounting work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through-hole, there is no need to position the two members simultaneously, and the work efficiency can be improved. Further, the first through-hole is disposed between the plurality of second through-holes, and when the plurality of first through-holes and the second through-holes on both sides of the plurality of first through-holes are connected by virtual straight lines, a virtual quadrilateral is formed. The plurality of first through-holes are configured to be disposed at the vertices at the ends of the diagonal lines of the virtual quadrilateral. Therefore, the two first members and the second member can be stably fixed by the second through-holes disposed on both sides of the first through-hole. Further, in a state where the first member and the second member are fixed to the base, a part of the second member abuts on a support portion provided on the base, so that a space is formed between the second member and the base. Therefore, even when the first member has wiring or the like, the wiring or the like can be drawn out to the outside through the space, and the degree of freedom in design can be increased.

[0435] In addition, the gaming machine according to the present embodiment (for example, the slot machine 100 shown in FIG. 1) includes a first member (for example, the speaker 810 shown in FIGS. 20, 21(c), and 21(d)) that can be fixed to a base (for example, the speaker pedestal portion 830 shown in FIGS. 20 and 23), and a second member (for example, the rear cover 820 shown in FIGS. 20, 21(a), and 21(b)) that can cover at least a part of the first member. The first member includes a plurality of first through-holes (for example, the dedicated screw holes 816a shown in FIG. 21(d)) and a plurality of second through-holes (for example, the common screw holes 816b shown in FIG. 21(d)) different from the first through-holes. The second member includes a plurality of third through-holes (for example, the screw holes 824 shown in FIG. 21(b)). The first through-holes are the through-holes used when fixing the first member to the base among the first member and the second member. The second through-holes and the third through-holes are the through-holes used when fixing both the first member and the second member to the base. When the plurality of first through-holes and the second through-holes adjacent to both sides of the plurality of first through-holes are connected by a virtual straight line (for example, the straight line VL shown in FIG. 21(d)), a virtual quadrilateral (for example, the quadrilateral VQ shown in FIG. 21(d)) is formed. The plurality of first through-holes are configured to be arranged at the vertices at the ends of the diagonal lines of the virtual quadrilateral. The base is configured to include a frame portion (for example, the diaphragm support portion 831 shown in FIGS. 20 and 23(a)) formed in accordance with the shape of the first member (for example, the outer edge portion 813a of the diaphragm 813 of the speaker 810). In a state where the first member and the second member are fixed to the base, a part of the second member abuts against a support portion provided on the base, so that a space is formed between the second member and the base. The gaming machine is characterized by this.

[0436] According to the gaming machine according to this embodiment, when fixing the first member and the second member to the base, it is possible to fix them at once through the second through-hole of the first member and the third through-hole of the second member. Therefore, the member mounting work can be simplified compared to the prior art, and the two first members and the second member can be stably fixed. Further, since the second member can be fixed to the base in a state where the first member is fixed and positioned on the base using the first through-hole, there is no need to position the two members at the same time, and the work efficiency can be improved. Further, the first through-hole is disposed between the plurality of second through-holes, and a virtual square is formed when the plurality of first through-holes and the second through-holes on both sides of the plurality of first through-holes are connected by virtual straight lines. Since the plurality of first through-holes are configured to be disposed at the vertices at the ends of the diagonal lines of the virtual square, the two first members and the second member can be stably fixed by the second through-holes disposed on both sides of the first through-hole. Further, since the base includes a frame portion formed in accordance with the shape of the first member, the first member can be attached to the base in a state where the first member is surely positioned with respect to the base, and the attachment work can be efficiently performed. Further, the frame portion can stably fix the first member to the base. Further, in a state where the first member and the second member are fixed to the base, a space is formed between the second member and the base by a part of the second member abutting against a support portion provided on the base. Therefore, even when the first member has wiring or the like, the wiring or the like can be drawn out to the outside through the space, and the degree of freedom in design can be increased.

[0437] Further, the first member can be fixed to the base by a first fixing means (e.g., the screw 840 shown in FIGS. 20(a) and 23(d)) and a second fixing means (e.g., the screw 840 shown in FIGS. 20(a) and 23(d)), the second member can be fixed to the base by the second fixing means, and in a state where the first member and the second member are fixed to the base (hereinafter referred to as the "first state"), the first through hole of the first member is configured not to be covered by the second member, and in the first state, the first fixing means may be configured to contact only the first member among the first member and the second member.

[0438] With such a configuration, even when the second member is positioned with respect to the base, the first through hole of the first member will not be made difficult to see by the second member, and the mounting operation can be performed efficiently. Also, even when the first member and the second member are first fixed to the base using the second through hole and the third through hole, it is then possible to fix the first member using the first through hole, enhancing the convenience of the mounting operation.

[0439] Further, the second member includes a plurality of fourth through holes (e.g., the through holes 825 shown in FIGS. 21(b) and 23(d)), the third through hole is a through hole disposed at a position corresponding to the second through hole of the first member in the first state, the fourth through hole is a through hole disposed at a position corresponding to the first through hole of the first member in the first state, the size of the fourth through hole is larger than the size of the third through hole, and in the first state, the second fixing means may be configured to be visible through the fourth through hole.

[0440] With such a configuration, when the first member and the second member are correctly attached to the base and the first member is covered with the second member, the fixing means attached to the first through-hole of the first member can be accommodated inside the fourth through-hole, and since the fixing means does not interfere with the second member, it is possible to easily visually confirm that the second member is attached to the first member at the correct position based on the positional relationship between the fourth through-hole and the fixing means, and it is possible to accurately position the second member with respect to the first member. Moreover, when the second member is accurately positioned with respect to the first member, the fixing means is accommodated inside the fourth through-hole, and the movement of the second member is restricted by the fixing means, so that displacement and rattling of the second member can be suppressed when the second member is attached. In addition, since the fixing means is visible through the third through-hole and the fourth through-hole, even if an illegal actor tries to remove the first member or the second member, it can be made to seem that it takes time to remove, and illegal acts and the like can be prevented in advance.

[0441] Also, after fixing the first through-hole of the first member to the base by the first fixing means, the third through-hole of the second member can be positioned with respect to the second through-hole of the first member, and the second through-hole of the first member and the third through-hole of the second member can be fixed to the base by the second fixing means. It may be configured such that after positioning the third through-hole of the second member with respect to the second through-hole of the first member and fixing the second through-hole of the first member and the third through-hole of the second member to the base by the second fixing means, the first through-hole of the first member can be fixed to the base by the first fixing means.

[0442] With such a configuration, depending on the skill of the operator, an appropriate mounting method can be selected from among a plurality of mounting methods, and the work efficiency can be increased.

[0443] <Speaker Mounting Structure (Modification 3) / Configuration of Speaker Unit> Next, with reference to FIG. 24, the configuration of the speaker unit 850 according to Modification 3 will be described. FIG. 24(a) is an exploded perspective view of the speaker unit 850 according to Modification 3, and FIG. 24(b) is an external perspective view showing a state where two speaker units 850 are attached below the back surface of the front door 102.

[0444] As shown in FIG. 24(a), the speaker unit 850 according to Modification 3 is composed of a speaker 860 (first member) for low - frequency output having a large diaphragm, and a back cover 870 (second member) that covers the back side of the speaker 860, and is attached to a speaker pedestal portion 880 (left speaker pedestal portion 880L, right speaker pedestal portion 880R) disposed below the back surface of the front door 102 (base) of the slot machine.

[0445] Below the back surface of the front door 102, a left speaker pedestal portion 880L and a right speaker pedestal portion 880R are arranged horizontally with a predetermined interval therebetween, and the speaker unit 850 is configured to be attachable to each of the left speaker pedestal portion 880L and the right speaker pedestal portion 880R.

[0446] Specifically, in the left speaker pedestal portion 880L (first region) disposed on the left side of the front door 102 in a rear view, the box - shaped space 872S of the back cover 870 and the lead terminals 866 of the speaker 860 face the right side in a rear view, and the speaker unit 850 is attached in a direction (first direction. Hereinafter, it may be referred to as the "right - facing direction") in which the lead wire 867 of the speaker 860 is drawn out from the right side.

[0447] On the other hand, in the right speaker pedestal portion 880R (second region) disposed on the right side of the front door 102 in a rear view, the box - shaped space 872S of the back cover 870 and the lead terminals 866 of the speaker 860 face the left side in a rear view, and the speaker unit 850 is attached in a direction (second direction. Hereinafter, it may be referred to as the "left - facing direction") in which the lead wire 867 of the speaker 860 is drawn out from the left side.

[0448] That is, in this example, the first member (speaker 860) and the second member (rear cover 870) can be attached to the base (front door 102) either in the first direction (rightward) or in the second direction (leftward) obtained by rotating the first member (speaker 860) and the second member (rear cover 870) 180 degrees circumferentially with respect to the first direction. The first member (speaker 860) and the second member (rear cover 870) can be attached to the first area (left speaker pedestal portion 880L) in the first direction (rightward), and can be attached to the second area (right speaker pedestal portion 880R) in the second direction (leftward).

[0449] According to this example, since the first member (speaker 860) and the second member (rear cover 870) can be attached to the base (front door 102) in at least two directions, the degree of freedom regarding the attachment of the first member (speaker 860) and the second member (rear cover 870) can be increased, and they can be attached according to the structure and specifications of the game table.

[0450] Also, in this example, the first member (speaker 860) and the second member (rear cover 870) in the first direction (rightward) can be attached to the first area (left speaker pedestal portion 880L), but cannot be attached to the second area (right speaker pedestal portion 880R). The first member (speaker 860) and the second member (rear cover 870) in the second direction can be attached to the second area (right speaker pedestal portion 880R), but cannot be attached to the first area (left speaker pedestal portion 880L).

[0451] According to this example, the degree of freedom regarding the attachment of the first member (speaker 860) and the second member (rear cover 870) can be increased, and they can be attached according to the structure and specifications of the game table, and moreover, attachment mistakes can be prevented in advance.

[0452] As shown in FIG. 24(b), the lead wires 867 of the two left and right speakers 860 pass through the inner space of the box-shaped space 872S of the rear cover 870, are drawn out to the outside from the opening formed in the front surface of the box-shaped space 872S, are wired along the back surface of the front door 102, and are electrically connected to the sound output control means (for example, the sound source IC 418 of the first sub-control unit 400 and the second sub-control unit 500 described with reference to FIG. 3) disposed above the front door 102.

[0453] According to this example, the first member (speaker 860) and the second member (rear cover 870) attached to the first region (left speaker pedestal portion 880L) are arranged to face the first member (speaker 860) and the second member (rear cover 870) attached to the second region (right speaker pedestal portion 880R) (while one speaker unit 850 is attached facing right, and the other speaker unit 850 is attached facing left so as to face the one speaker unit 850). Therefore, as shown in FIG. 24(b), the lead wires 867 of the respective first members (speakers 860) can be drawn out toward the center of the back surface of the base (front door 102), facilitating the routing of the wiring, enhancing the efficiency of the wiring work, and enabling the wiring to be organized and accommodated, thereby enhancing the maintainability.

[0454] Note that the manner of drawing out the lead wires 867 of the speaker 860 is not limited to this example. For example, they may pass through the inner space of the box-shaped space 872S of the rear cover 870, be drawn out to the outside from the space formed between the rear cover 870 and the front door 102, be wired along the back surface of the front door 102, and be electrically connected to the sound output control means disposed above the front door 102.

[0455] Further, for example, when applying to a gaming table where it is difficult to secure a space above the speaker unit 850 (for example, a slot machine in which a hopper, medal selector, etc. are arranged above the speaker unit 850, or a pachinko machine in which a lower plate, etc. is arranged above the speaker unit 850), the lead wire 867 of the speaker 860 can be routed around other devices arranged above the speaker unit 850, improving the efficiency of the wiring work and effectively utilizing the limited space on the back surface of the front door 102.

[0456] In this example, an example in which two speaker units 850 are arranged side by side horizontally on the back surface of the front door 102 is shown. However, three or more speaker units 850 may be arranged, or the speaker units 850 may be arranged side by side vertically or diagonally on the back surface of the front door 102.

[0457] Also, the length of the lead wire 867 of the speaker 860 is not particularly limited, and it may have a length that can be electrically connected from the speaker 860 to the sound output control means (for example, the sound source IC 418 of the first sub-control unit 400 or the second sub-control unit 500 described with reference to FIG. 3). For example, when the speaker unit 850 is attached in the left or right direction, it is set as the minimum required length. If the length of the lead wire 867 is insufficient and cannot be connected to the sound output control means when attempting to attach the speaker unit 850 in the downward direction (the direction in which the box-shaped space 872S of the back cover 870 and the lead terminal 866 of the speaker 860 face downward in a rear view), the attachment direction of the speaker unit 850 can be deliberately restricted, and installation errors of the speaker unit 850 on the gaming table can be prevented in advance.

[0458] In addition, the "first direction" according to the present invention is not limited to the rightward direction. For example, it may be the downward direction (the direction in which the box-shaped space 872S of the back cover 870 and the lead terminals 866 of the speaker 860 face downward in a rear view, and the lead wire 867 of the speaker 860 is drawn out from the lower side), or the upward direction (the direction in which the box-shaped space 872S of the back cover 870 and the lead terminals 866 of the speaker 860 face upward in a rear view, and the lead wire 867 of the speaker 860 is drawn out from the upper side), or other directions. Also, the "second direction" according to the present invention is not limited to the leftward direction, and may be the above-mentioned downward direction, upward direction, or other directions.

[0459] In addition, the orientations (the first direction, the second direction) of the speaker 860 and the back cover 870 may be changed according to the drawing direction of the lead wire 867 of the speaker 860. Also, the positions of the mounting sleeves 882 of the left speaker pedestal portion 880L and the right speaker pedestal portion 880R described later may be appropriately changed according to the orientations (the first direction, the second direction) of the speaker 860 and the back cover 870 and the positions of the holes provided in each.

[0460] <Speaker Mounting Structure (Modification 3) / Speaker Pedestal Portion> As shown in FIG. 24(a), the left speaker pedestal portion 880L and the right speaker pedestal portion 880R include an annular diaphragm support portion 881 that supports the outer edge portion of the diaphragm 863 (see FIG. 25(c), etc.) of the speaker 860 (the portion that supports the outer edge of the cone of the diaphragm 863), a cylindrical mounting sleeve 882 for screwing the speaker 860 and the back cover 870 to the front door 102, a disc-shaped sound hole plate 884 that is fitted inside the diaphragm support portion 881, and the like.

[0461] <Speaker Mounting Structure (Modification 3) / Metal Plate> Between the left speaker pedestal portion 880L and the right speaker pedestal portion 880R on the back surface of the front door 102, a rectangular parallelepiped-shaped metal plate 885 (third member) is erected. Since this metal plate 885 is disposed on the front door 102 (metallic frame), it is a member that functions as a frame ground. For convenience of explanation, in FIG. 24(a), a part of the metal plate 885 is shown in a transparent manner, and in FIG. 24(b), the illustration is omitted.

[0462] As shown in FIG. 24(a), a circular eighth through hole 885a8 and a tenth through hole 885a10 are formed in the metal plate 885.

[0463] The eighth through hole 885a8 is a through hole for fixing a first member (speaker 860) in a first direction (rightward) to the metal plate 885, and the tenth through hole 885a10 is a through hole for fixing a first member (speaker 860) in a second direction (leftward) to the metal plate 885 (details will be described later with reference to FIGS. 25 to 28).

[0464] <Speaker mounting structure (Modification 3) / Speaker, Rear cover> Next, with reference to FIGS. 25 to 28, the speaker 860 and the rear cover 870 that constitute the speaker unit 850 according to Modification 3 will be described in detail.

[0465] FIG. 25(a) is a side view of the rear cover 870, and FIG. 25(b) is a top view of the rear cover 870. Also, FIG. 25(c) is a side view of the speaker 860, and FIG. 25(d) is a top view of the speaker 860.

[0466] Also, FIG. 26 is a rear view of the state where the speaker 860 and the rear cover 870 are positioned with respect to the front door 102 as seen from the back surface of the front door 102, and FIG. 27 is a rear view of the state after the speaker 860 and the rear cover 870 are attached to the front door 102 with screws as seen from the back surface of the front door 102.

[0467] Further, FIG. 28(a) is a side view of the speaker unit 850 attached to the left speaker pedestal portion 880L as viewed from the left side in a rear view, and FIG. 28(b) is a side view of the speaker unit 850 attached to the left speaker pedestal portion 880L as viewed from the right side in a rear view.

[0468] <Speaker mounting structure (Modification 3) / Speaker> Next, the speaker 860 (first member) will be described.

[0469] The speaker 860 (first member) is a cone-type dynamic speaker. As shown in FIG. 25(c), it generally comprises a voice coil and a magnet, and an electromagnetic circuit 861 that vibrates a diaphragm 863 described later in response to an electrical signal, a frame 862 that supports this electromagnetic circuit 861, a diaphragm 863 that vibrates to generate sound, a flat flange 864 to which this diaphragm 863 is fixedly mounted so as to be vibratable, a lead terminal 866 disposed on this flange 864, and a lead wire 867 detachably connected to this lead terminal 866.

[0470] The frame 862 is a cylindrical metal ring frame that expands slightly forward. On the side surface, a plurality of openings 865 (see FIG. 24) for discharging the air around the diaphragm 863 are formed along the circumferential direction. That is, on the side surface of the frame 862, a plurality of openings 855 are formed along the circumferential direction, and between the openings 865, a support column 862a (see FIG. 24) is formed along the front-rear direction. The diaphragm 863 is formed in a cone shape that opens forward using a flexible material such as paper, for example.

[0471] The electromagnetic circuit 861 is provided with a predetermined display 876 (in this example, part number and material). The display mode of the predetermined display 876 is not particularly limited, but in this example, on the surface of the electromagnetic circuit 861, a part number display representing the part number of the speaker 860 (in this example, the display of the character string "SPxxxx") and a material display representing the material of the speaker 860 (in this example, the display of the character string "AL") are engraved.

[0472] According to this example, since the speaker 860 is provided with a predetermined display 876, the orientation of the speaker 860 (the above-mentioned first orientation and second orientation) can be easily identified by the orientation of this predetermined display 876, and the convenience during the installation of the speaker 860 etc. can be enhanced.

[0473] <Mounting Structure of Speaker (Modification 3) / Speaker / First and Fourth Through-Holes> As shown in FIG. 25(d), an elliptical first through-hole 864a1 (first hole) is formed at the lower left corner of the outer end of the flange 864 of the speaker 860.

[0474] As shown in FIG. 27, this first through-hole 864a1 (first hole) is a hole used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (left speaker pedestal portion 880L of the front door 102) in the first orientation (rightward), and is not used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (right speaker pedestal portion 880R of the front door 102) in the second orientation (leftward).

[0475] In other words, the first through-hole 864a1 (first hole) is a hole that may or may not be used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (front door 102).

[0476] According to this example, since the first through-hole 864a1 (first hole) may not be used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (front door 102), the attachment work of the first member (speaker 860) and the second member (rear cover 870) can be simplified, and the work efficiency may be improved.

[0477] In addition, an identifier (for example, printing characters, symbols, etc. near the first hole, forming a protrusion or the like near the first hole, attaching a seal near the first hole, etc.) that can identify whether the first through-hole 864a1 (first hole) is a hole used when attaching the first member and / or the second member to the base or is not a used hole may be provided. The member on which the identifier is provided may be any of the first member, the second member, the third member, and the base, or may be another member. The same applies to the through-holes described hereinafter.

[0478] According to this example, since an identifier that can determine whether a certain through-hole is a hole used when attaching the first member and / or the second member to the base is provided, it is possible to prevent attachment errors when attaching the first member and / or the second member to the base, and the work efficiency can be improved.

[0479] An elliptical fourth through-hole 864a4 (fourth hole) is formed at the upper left corner of the outer end of the flange 864 of the speaker 860.

[0480] As shown in FIG. 27, this fourth through-hole 864a4 (fourth hole) is a hole that is not used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (left speaker pedestal portion 880L of the front door 102) in the first direction (rightward), and is a hole that is used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (right speaker pedestal portion 880R of the front door 102) in the second direction (leftward).

[0481] In other words, the fourth through-hole 864a4 (fourth hole) is a hole that may or may not be used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (front door 102).

[0482] According to this example, since the fourth through-hole 864a4 (the fourth hole) may not be used when attaching the first member (the speaker 860) and the second member (the back cover 870) to the base (the front door 102), the attachment work of the first member (the speaker 860) and the second member (the back cover 870) can be simplified, and the work efficiency may be improved.

[0483] In this example, the first hole (the first through-hole 864a1) and the fourth hole (the fourth through-hole 864a4) of the first member (the speaker 860) are arranged at positions that are substantially line-symmetric with respect to a virtual line VL3 (see FIG. 25(d)) passing through the center of the first member (the speaker 860) (positions where the shortest distances from the virtual line VL3 are substantially equal).

[0484] <Speaker mounting structure (Modification 3) / Speaker / Seventh and ninth through-holes> An elliptical seventh through-hole 864a7 (the seventh hole) is formed at the lower right corner of the outer end of the flange 864 of the speaker 860.

[0485] As shown in FIG. 27, this seventh through-hole 864a7 (the seventh hole) is a hole used when attaching the first member (the speaker 860) to the third member (the metal plate 885) in the first direction (rightward), and is not a hole used when attaching the first member (the speaker 860) to the base (the right speaker pedestal portion 880R of the front door 102) or the third member (the metal plate 885) in the second direction (leftward).

[0486] In other words, the seventh through-hole 864a7 (the seventh hole) is a hole that may or may not be used when attaching the first member (the speaker 860) to the base (the front door 102) or the third member (the metal plate 885). Different from the first through-hole 864a1 and the fourth through-hole 864a4, it is not a hole used when attaching the second member (the back cover 870).

[0487] Note that the seventh through-hole 864a7 (seventh hole) may be used as a hole for attaching the first member (speaker 860) to the base (left speaker pedestal portion 880L of the front door 102) in the first direction (right direction).

[0488] An elliptical ninth through-hole 864a9 (ninth hole) is formed at the upper right corner of the outer end of the flange 864 of the speaker 860.

[0489] As shown in Fig. 27, this ninth through-hole 864a9 (ninth hole) is a hole that is not used when attaching the first member (speaker 860) to the base (left speaker pedestal portion 880L of the front door 102) or the third member (metal plate 885) in the first direction (right direction), but is a hole used when attaching the first member (speaker 860) to the third member (metal plate 885) in the second direction (left direction). Different from the first through-hole 864a1 and the fourth through-hole 864a4, it is a hole not used when attaching the second member (rear cover 870).

[0490] In other words, the ninth through-hole 864a9 (ninth hole) is a hole that may or may not be used when attaching the first member (speaker 860) to the base (front door 102) or the third member (metal plate 885).

[0491] Note that the ninth through-hole 864a9 (ninth hole) may be used as a hole for attaching the first member (speaker 860) to the base (right speaker pedestal portion 880R of the front door 102) in the second direction (left direction).

[0492] In this example, the seventh hole (seventh through-hole 864a7) and the ninth hole (ninth through-hole 864a9) of the first member (speaker 860) are arranged at positions that are substantially line-symmetrical with respect to the virtual line VL3 (see Fig. 25(d)) passing through the center of the first member (speaker 860) (positions where the shortest distances from the virtual line VL3 are substantially equal).

[0493] <Speaker mounting structure (Modification 3) / Speaker / First, Fourth, Seventh, Ninth Through-Holes> As shown in FIG. 25(d), when four through-holes, i.e., the first through-hole 864a1, the fourth through-hole 864a4, the seventh through-hole 864a7, and the ninth through-hole 864a9, are connected by a virtual straight line VL4, a virtual quadrilateral VQ4 is formed. The first through-hole 864a1 and the ninth through-hole 864a9 are arranged on (the vertices at the ends of) the (first) diagonal line of the virtual quadrilateral VQ, and the fourth through-hole 864a4 and the seventh through-hole 864a7 are arranged on (the vertices at the ends of) the second diagonal line (different from the first diagonal line) of the virtual quadrilateral VQ4.

[0494] Note that the sizes and shapes of the four through-holes, i.e., the first through-hole 864a1, the fourth through-hole 864a4, the seventh through-hole 864a7, and the ninth through-hole 864a9, are not particularly limited. However, in this example, as shown in FIG. 26, the four through-holes, i.e., the first through-hole 864a1, the fourth through-hole 864a4, the seventh through-hole 864a7, and the ninth through-hole 864a9, are formed as elliptical holes having an outer diameter larger than that of the circular second through-hole 872a2 and the fifth through-hole 872a5 of the back cover 870.

[0495] According to this example, since the four through-holes, i.e., the first through-hole 864a1, the fourth through-hole 864a4, the seventh through-hole 864a7, and the ninth through-hole 864a9, are formed as elliptical holes having an outer diameter larger than that of the circular second through-hole 872a2 and the fifth through-hole 872a5 of the back cover 870, it is possible to absorb the assembly error (misalignment of the back cover 870) of the back cover 870 with respect to the speaker 860, and the mounting operation can be simplified.

[0496] <Speaker mounting structure (Modification 3) / Back cover> Next, the back cover 870 (second member) will be described.

[0497] The back cover 870 (second member) is a colored transparent resin member capable of accommodating the speaker 860 inside, and is made of a material that allows the speaker 860 to be visually recognized from the outside when the speaker 860 is accommodated inside.

[0498] According to this example, since at least a part of the speaker 860 can be visually recognized through the back cover 870, in the installation work of the speaker unit 850, the work can be carried out while checking the positional relationship between the speaker 860 and the back cover 870, etc., and the convenience of the installation work can be improved.

[0499] Note that the back cover 870 only needs to be a member having transparency, and its material is not limited to a colored transparent resin. For example, it may be a colorless transparent (or translucent) plastic, acrylic, polycarbonate, polyvinyl chloride, glass, metal, or the like.

[0500] Also, the shape of the back cover 870 is not particularly limited, but at least a part thereof may be formed with a portion having a shape (for example, a lattice shape or a labyrinth shape) capable of preventing foreign matters such as dust and dirt from entering and adhering to the speaker 860. Further, a guiding portion (such as a hook) for guiding the lead wire 867 (wiring) of the speaker 860 and the ground wire connecting the speaker 860 and the metal plate 885 (frame ground) to a predetermined position may be formed on the back cover 870, or the guiding portion may be configured to be attachable to the back cover 870 later.

[0501] As shown in FIGS. 25(a) and (b), the back cover 870 is formed with an annular cover portion 871 that covers a part of the rear end of the speaker 860 on the back side, and a cylindrical side wall portion 872 that slightly expands rearward with this cover portion 871 as the base end.

[0502] <Speaker mounting structure (Modification 3) / Back cover / Second and fifth through holes> A circular second through hole 872a2 (second hole) is formed at the lower left corner of the outer end of the side wall portion 872 of the back cover 870.

[0503] This second through-hole 872a2 (second hole) is a hole used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (left speaker pedestal portion 880L of the front door 102) in the first direction (rightward) as shown in FIG. 27, and is not used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (right speaker pedestal portion 880R of the front door 102) in the second direction (leftward).

[0504] In other words, the second through-hole 872a2 (second hole) is a hole that may or may not be used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (front door 102).

[0505] According to this example, since the second through-hole 872a2 (second hole) may not be used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (front door 102), the attachment work of the first member (speaker 860) and the second member (rear cover 870) can be simplified, and the work efficiency may be improved.

[0506] A circular fifth through-hole 872a5 (fifth hole) is formed at the upper left corner of the outer end of the side wall portion 872 of the rear cover 870.

[0507] This fifth through-hole 872a5 (fifth hole) is a hole not used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (left speaker pedestal portion 880L of the front door 102) in the first direction (rightward) as shown in FIG. 27, and is a hole used when attaching the first member (speaker 860) and the second member (rear cover 870) to the base (right speaker pedestal portion 880R of the front door 102) in the second direction (leftward).

[0508] In other words, the fifth through-hole 872a5 (the fifth hole) may or may not be used when attaching the first member (the speaker 860) and the second member (the back cover 870) to the base (the front door 102).

[0509] According to this example, since the fifth through-hole 872a5 (the fifth hole) may not be used when attaching the first member (the speaker 860) and the second member (the back cover 870) to the base (the front door 102), the attachment work of the first member (the speaker 860) and the second member (the back cover 870) can be simplified, and the work efficiency may be improved.

[0510] In this example, the second hole (the second through-hole 872a2) and the fifth hole (the fifth through-hole 872a5) of the second member (the back cover 870) are arranged at positions that are substantially line-symmetrical with respect to an imaginary line VL5 (see Fig. 25(b)) passing through the center of the second member (the back cover 870) (positions where the shortest distances from the imaginary line VL5 are substantially equal).

[0511] <Speaker attachment structure (Modification 3) / Back cover / Third and sixth through-holes> As shown in Fig. 25(b), the back cover 870 includes a left protruding piece 873 protruding outward to the left from the outer edge of the side wall portion 872 and a right protruding piece 874 protruding outward to the right from the outer edge of the side wall portion 872.

[0512] Above the left protruding piece 873 and the right protruding piece 874 of the back cover 870, circular third through-holes 873a3 (the third holes) are respectively formed.

[0513] As shown in Fig. 27, this third through-hole 873a3 (the third hole) is a hole used when attaching the second member (the back cover 870) to the base (the left speaker pedestal portion 880L of the front door 102) in the first direction (rightward), and is a hole not used when attaching the second member (the back cover 870) to the base (the right speaker pedestal portion 880R of the front door 102) in the second direction (leftward).

[0514] In other words, the third through-hole 873a3 (the third hole) may or may not be used when attaching the second member (the rear cover 870) to the base (the front door 102).

[0515] According to this example, since the third through-hole 873a3 (the third hole) may not be used when attaching the second member (the rear cover 870) to the base (the right speaker pedestal portion 880R of the front door 102), the attachment work of the second member (the rear cover 870) can be simplified, and the work efficiency may be improved.

[0516] Note that either one of the two third through-holes 873a3 (the third holes) may be used as the hole for attaching the third member (the metal plate 885).

[0517] Below the left protruding piece 873 and the right protruding piece 874 of the rear cover 870, circular sixth through-holes 873a6 (the sixth holes) are respectively formed.

[0518] As shown in FIG. 27, this sixth through-hole 873a6 (the sixth hole) is a hole that is not used when attaching the second member (the rear cover 870) to the base (the left speaker pedestal portion 880L of the front door 102) in the first direction (rightward), and is a hole that is used when attaching the second member (the rear cover 870) to the base (the right speaker pedestal portion 880R of the front door 102) in the second direction (leftward).

[0519] In other words, the sixth through-hole 873a6 (the sixth hole) may or may not be used when attaching the second member (the rear cover 870) to the base (the front door 102).

[0520] According to this example, since the sixth through-hole 873a6 (the sixth hole) may not be used when attaching the second member (the rear cover 870) to the base (the right speaker pedestal portion 880R of the front door 102), the attachment work of the second member (the rear cover 870) can be simplified, and the work efficiency may be improved.

[0521] Note that either one of the two sixth through-holes 873a6 (sixth holes) may be used as a hole for attaching to the third member (metal plate 885).

[0522] In this example, the third hole (third through-hole 873a3) and the sixth hole (sixth through-hole 873a6) of the second member (rear cover 870) are arranged at positions that are substantially line-symmetrical with respect to a virtual line VL5 (see Fig. 25(b)) passing through the center of the second member (rear cover 870) (positions where the shortest distances from the virtual line VL5 are substantially equal).

[0523] Note that a predetermined display 877 (in this example, part number and material) is provided on the cover portion 871 of the rear cover 870. The display mode of the predetermined display 877 is not particularly limited, but in this example, on the surface of the cover portion 871, a part number display (display of a character string "CVxxxx" in this example) representing the part number of the rear cover 870 and a material display (display of a character string "PC" in this example) representing the material of the rear cover 870 are engraved.

[0524] According to this example, since the predetermined display 877 is provided on the rear cover 870, the orientation (the above-described first orientation and second orientation) of the rear cover 870 can be easily identified by the orientation of this predetermined display 877, and the convenience during the installation of the rear cover 870 and the like can be improved.

[0525] Particularly, since the predetermined display 877 is provided in a region of the cover portion 871 that is closer to the third through-hole 873a3 (third hole) than the sixth through-hole 873a6 (sixth hole) (a region above the virtual line VL5 passing through the center of the rear cover 870), using the predetermined display 877 as a clue, it becomes possible to recognize that the third through-hole 873a3 (third hole) is a hole used when attaching the second member (rear cover 870) to the base (left speaker pedestal portion 880L of the front door 102) or the third member (metal plate 885) in the first orientation (rightward), and the convenience during the installation of the rear cover 870 and the like can be further improved.

[0526] <Speaker Mounting Structure (Modification Example 3) / Rear Cover / Box-shaped Space> As shown in FIG. 25(b), a box-shaped space 872S (space portion) for housing the lead terminals 866 of the speaker 860 and guiding the lead wire 867 to the outside of the speaker unit 850 is formed to protrude at the outer edge on the right side in the top view of the rear cover 870.

[0527] With such a configuration, in a state where the speaker 860 is housed inside the rear cover 870, a space is formed between the speaker 860 and the rear cover 870, and as shown in FIGS. 26 and 27, the lead wire 867 (wiring) of the speaker 860 can be drawn out to the outside of the speaker 860 and the rear cover 870 through the space.

[0528] According to this example, even when a part of the speaker 860 is covered by the rear cover 870, the lead wire 867 (wiring) of the speaker 860 can be drawn out to the outside, and the degree of freedom in design can be increased.

[0529] In this example, the lead wire 867 is drawn out to the outside through the opening formed in the front surface of the box-shaped space 872S through the inner space of the box-shaped space 872S of the rear cover 870. For example, a space may be formed between the speaker 860 and the front door 102, and the lead wire 867 may be drawn out from the front surface of the speaker 860 to the front door 102 side through the space. In this case, the box-shaped space 872S may not be formed in the rear cover 870.

[0530] <Speaker Mounting Structure (Modification Example 3) / Mounting Method> Next, the mounting method of the speaker unit 850 will be described.

[0531] As shown in FIGS. 27 and 28(a), a first member (speaker 860) in a first direction (rightward) and a second member (rear cover 870) are attached to a base (attachment sleeve 882 of the left speaker pedestal portion 880L of the front door 102) by fixing means (screw 890) that passes through a first hole (first through-hole 864a1) of the first member (speaker 860) and a second hole (second through-hole 872a2) of the second member (rear cover 870).

[0532] According to this example, since it is possible to fix the first hole (first through-hole 864a1) of the first member (speaker 860) and the second hole (second through-hole 872a2) of the second member (rear cover 870) at once, the member attachment work can be simplified compared to the prior art, and the two first members (speaker 860) and the second member (rear cover 870) can be stably fixed.

[0533] Also, the second member (rear cover 870) in the first direction (rightward) is attached to the base (attachment sleeve 882 of the left speaker pedestal portion 880L of the front door 102) by fixing means (screw 890) that passes through a third hole (third through-hole 873a3) of the second member (rear cover 870).

[0534] Then, the first member (speaker 860) and the second member (rear cover 870) in the first direction (rightward) are attached vertically along the base (front door 102), and the first hole (first through-hole 864a1) of the first member (speaker 860) and the second hole (second through-hole 872a2) of the second member (rear cover 870) are disposed below a virtual line VL6 (see FIG. 27) passing through the center of the first member (speaker 860) or the second member (rear cover 870) in the vertical direction of the base (front door 102).

[0535] According to this example, since the first member (speaker 860) and the second member (rear cover 870) can be fixed to the base (left speaker pedestal portion 880L of the front door 102) vertically downward, the two first members (speaker 860) and the second member (rear cover 870) can be stably fixed.

[0536] Also, as shown in FIGS. 27 and 28(b), the second member (rear cover 870) in the first direction (rightward) is attached to the base (attachment sleeve 882 of the left speaker pedestal portion 880L of the front door 102) by fixing means (screw 890) passing through the third hole (third through hole 873a3) of the second member (rear cover 870), and the first member (speaker 860) in the first direction (rightward) is attached to the eighth through hole 885a8 (eighth hole) of the third member (metal plate 885) by fixing means (screw 890) passing through the seventh hole (seventh through hole 864a7) of the first member (speaker 860). Thereby, the first member (speaker 860) in the first direction (rightward) is grounded.

[0537] In a state where the rightward speaker 860 and the rear cover 870 are attached to the left speaker pedestal portion 880L of the front door 102, most of the speaker 860 is accommodated in the inner space of the rear cover 870, and the flange 864 of the speaker 860 and the inner wall of the side wall portion 872 of the rear cover 872 (at least a part of the speaker 860 and the rear cover 870) are configured to be in contact (or close proximity).

[0538] According to this example, since the second member (rear cover 870) is fixed so as to be in contact (or close proximity) with at least a part of the first member (speaker 860) and cover at least a part of the first member (speaker 860) in a state of being attached to the base (left speaker pedestal portion 880L of the front door 102), the two first members (speaker 860) and the second member (rear cover 870) can be stably fixed.

[0539] On the one hand, as shown in FIG. 27, the first member (speaker 860) and the second member (rear cover 870) in the second orientation (left-handed) are attached to the base (attachment sleeve 882 of the right speaker pedestal portion 880R of the front door 102) by fixing means (screw 890) passing through the fourth hole (fourth through-hole 864a4) of the first member (speaker 860) and the fifth hole (fifth through-hole 872a5) of the second member (rear cover 870).

[0540] Further, the second member (rear cover 870) in the second orientation (left-facing) is attached to the base (attachment sleeve 882 of the right speaker pedestal portion 880R of the front door 102) by fixing means (screw 890) passing through the sixth hole (sixth through-hole 873a6) of the second member (rear cover 870).

[0541] Then, the first member (speaker 860) and the second member (rear cover 870) in the second orientation (left-facing) are attached vertically along the base (front door 102), and the fourth hole (fourth through-hole 864a4) of the first member (speaker 860) and the fifth hole (fifth through-hole 872a5) of the second member (rear cover 870) are disposed below a virtual line VL6 (see FIG. 27) passing through the center of the first member (speaker 860) or the second member (rear cover 870) in the vertical direction of the base (front door 102).

[0542] According to this example, since the first member (speaker 860) and the second member (rear cover 870) can be fixed to the base (right speaker pedestal portion 880R of the front door 102) vertically downward, the two first members (speaker 860) and the second member (rear cover 870) can be stably fixed.

[0543] Also, as shown in FIG. 27, the second member (rear cover 870) in the second direction (leftward) is attached to the base (attachment sleeve 882 of the right speaker pedestal portion 880R of the front door 102) by fixing means (screw 890) passing through the sixth hole (sixth through-hole 873a6) of the second member (rear cover 870), and the first member (speaker 860) in the second direction (leftwa...

Claims

1. A gaming table comprising a substrate having a first surface and a second surface, wherein the base material of the substrate is light transmissive, the second surface is the surface opposite to the first surface with the base material interposed therebetween, the first surface has a first region where no wiring pattern is formed and a third region where the wiring pattern is formed, the second surface has a second region where no wiring pattern is formed and a fourth region where the wiring pattern is formed, the wiring pattern is light impermeable, in a first case, in a certain region (hereinafter referred to as "fifth region") of the first region overlapping the second region when viewed from a direction perpendicular to the second surface and the first surface, at least a part of the light traveling from the second surface side toward the second surface is visible when viewed from the first surface side, in the first case, in a certain region (hereinafter referred to as "sixth region") of the first region overlapping the fourth region when viewed from a direction perpendicular to the second surface and the first surface, at least a part of the light traveling from the second surface side toward the second surface is visible when viewed from the first surface side, in the first case, the brightness of the fifth region is higher than the brightness of the sixth region, characterized in that it is a gaming table.

2. The gaming table according to claim 1, wherein the first case is a case where sunlight, light from an indoor lamp, or light from a light emitting means is irradiated onto the second surface from the second surface side of the substrate moved from the mounting position, characterized in that it is a gaming table.

3. The gaming table according to claim 2, wherein the gaming table includes the light emitting means, characterized in that it is a gaming table.

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