Gaming machines

Abstract

We provide gaming machines with distinctive presentation features. [Solution] A gaming machine equipped with a first stop button and a second stop button, configured to transition at least between a normal state and a first advantageous state which is more advantageous than the normal state, configured to be able to execute a first notification when the first stop button is first operated during non-navigation gameplay in the normal state, configured to be able to execute a first notification when the first stop button is first operated during non-navigation gameplay in the first advantageous state, and the first notification is a notification recommending that the second stop button be operated first.

Description

Technical Field

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

Background Art

[0002] Conventionally, as one type of gaming table, for example, a slot machine is known.

[0003] Some of such slot machines perform an effect in which information regarding an operation of a stop button for deriving a stop state advantageous to a player is notified (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, there is still room for improvement in the effects performed by such gaming tables.

[0006] The present invention has been made in view of such circumstances, and an object thereof is to provide a gaming table having a characteristic in an effect.

Means for Solving the Problems

[0007] To achieve the above object, a gaming table according to the present invention, as one aspect, a first stop button, a second stop button, is a gaming table provided with, configured to be at least shiftable between a normal state and a first advantageous state more advantageous than the normal state, In the normal state of non-navigation gameplay, when the first stop button is operated for the first time (hereinafter referred to as "the first case"), the system is configured to enable the first notification. In the first advantageous state, when the first stop button is operated for the first time during non-navigation gameplay (hereinafter referred to as "the second case"), the system is configured to enable the first notification. The first notification is a notification recommending that the second stop button be pressed first. It is characterized by the following: [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a gaming machine that has distinctive features in its presentation. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of slot machine 100 from the front (player side). [Figure 2] This figure shows an example of the winning lines for slot machine 100. [Figure 3] This shows the circuit block diagram of the control unit. [Figure 4] This diagram shows the arrangement of symbols on each reel (left reel 110, middle reel 111, right reel 112) laid out in a two-dimensional manner. [Figure 5] This diagram shows the types of winning combinations, the names of the conditional devices, the corresponding symbol combinations for each winning combination, the payout amount, and notes. [Figure 6] This is a flowchart showing the main processing flow of the main control unit. [Figure 7] This is a flowchart showing the flow of the main control unit timer interrupt processing. [Figure 8] (a) A flowchart of the main processing performed by the CPU 404 of the first sub-control unit 400. (b) A flowchart of the command reception interrupt processing of the first sub-control unit 400. (c) A flowchart of the timer interrupt processing of the first sub-control unit 400. [Figure 9](a) It is a flowchart of the main process executed by the CPU 504 of the second sub-control unit 500. (b) It is a flowchart of the command reception interrupt process of the second sub-control unit 500. (c) It is a flowchart of the timer interrupt process of the second sub-control unit 500. (d) It is a flowchart of the image control process of the second sub-control unit 500. [Figure 10] It is a front view showing the slot machine 100 with the front door 102 open. [Figure 11] It is an exploded perspective view of the speaker unit 600. [Figure 12] (a) It is a side view of the rear cover 620. (b) It is a top view of the rear cover 620. (c) It is a side view of the speaker 610. (d) It is a top view of the speaker 610. [Figure 13] (a) It is a top view of the speaker unit 600. (b) It is a cross-sectional view taken along the A-A line of the speaker unit 600 shown in (a). [Figure 14] (a) It is a diagram schematically showing an example of the correct mounting method of the speaker unit 600. (b) It is a diagram schematically showing an example of an incorrect mounting method of the speaker unit 600. [Figure 15] (a), (b) It is a diagram schematically showing another example of an incorrect mounting method of the speaker unit 600. [Figure 16] It is an exploded perspective view of the speaker unit 700 according to Modification 1. [Figure 17] (a) It is a side view of the rear cover 720. (b) It is a top view of the rear cover 720. (c) It is a side view of the speaker 710. (d) It is a top view of the speaker 710. [Figure 18] (a) It is a top view of the speaker unit 700. (b) It is a cross-sectional view taken along the B-B line of the speaker unit 700 shown in (a). [Figure 19] It is a diagram showing an example of the mounting method of the speaker unit 700 in time series. [Figure 20] (a) It is an exploded perspective view of the speaker unit 800 according to Modification 2. (b) It is an external perspective view showing the state of mounting two speaker units 800 on the back surface of the front door 102. [Figure 21] (a) Side view of the rear cover 820. (b) Top view of the rear cover 820. (c) Side view of the speaker 810. (d) Top view of the speaker 810. [Figure 22] It is a plan view seen from the lower surface side of the speaker 810 in a state where the speaker 810 is accommodated in the inner space of the rear cover 820. [Figure 23] It is a diagram showing an example of the attachment method of the speaker unit 800 in time series. [Figure 24] (a) Exploded perspective view of the speaker unit 850 according to Modification 3. (b) External perspective view showing a state where two speaker units 850 are attached below the back surface of the front door 102. [Figure 25] (a) Side view of the rear cover 870. (b) Top view of the rear cover 870. (c) Side view of the speaker 860. (d) Top view of the speaker 860. [Figure 26] It is a rear view seen from the back surface of the front door 102 in a state where the speaker 860 and the rear cover 870 are positioned with respect to the front door 102. [Figure 27] It is a rear view seen from the back surface of the front door 102 after the speaker 860 and the rear cover 870 are attached to the front door 102 with screws. [Figure 28] (a) Side view of the speaker unit 850 attached to the left speaker pedestal portion 880L as seen from the left side in a rear view. (b) Side view of the speaker unit 850 attached to the left speaker pedestal portion 880L as seen from the right side in a rear view. [Figure 29] It is a rear view seen from the back surface of the front door 102 after the speaker 860 and the rear cover870 are attached to the front door 102 with screws. [Figure 30] (a) Plan view showing a state where the reel relay board unit 700 is attached to the power relay board unit 600. (b) Side view showing a state where the reel relay board unit 700 is attached to the power relay board unit 600. (c) Side view showing a state where the reel relay board unit 700 is removed from the power relay board unit 600. [Figure 31] (a) A front view of the power supply relay board unit 600. (b) A rear view of the power supply relay board unit 600. [Figure 32] This is an exploded view of the components that make up the power relay board unit 600, taken from the front. [Figure 33] This is an exploded view of the components that make up the power relay board unit 600, as seen from the rear. [Figure 34] This is a magnified view of the main side substrate housing portion 612 of the substrate support 610. [Figure 34-2] (a) A front view of the main side board housing section 631 according to a modified example. (b) A cross-sectional view along the ZZ line in (a). (c) A cross-sectional view corresponding to (b), showing the state in which the main side power relay board 640 is housed in the main side board housing section 631. [Figure 35] (a) A front view showing the main power relay board 640 housed in the main board housing section 612 of the board support 610. (b) A plan view showing the main power relay board 640 moved to the left in the main board housing section 612 when viewed from the front. (c) A plan view showing the main power relay board 640 moved downward in the main board housing section 612 when viewed from the front. [Figure 36] (a) A front view showing the main power relay board 640 housed in the main board housing portion 612 of the board support 610 and the mounting screws 646 attached. (b) A view from the direction of reference numeral A in (a), an enlarged view showing the vicinity of the mounting screws 646. [Figure 36-2] (a) This is a partially enlarged view showing the state before the mounting screw 647 according to the modified example is attached to the substrate loose fitting boss 625. (b) This is a partially enlarged view showing the state after the mounting screw 647 according to the modified example is attached to the substrate loose fitting boss 625, and is a drawing corresponding to Figure 36(b). [Figure 37] (a) A front view of the reel relay board unit 700 as seen from the front. (b) A side view of the reel relay board unit 700 as seen from the right side. (c) An exploded side view of the components constituting the reel relay board unit 700 as seen from the right side. [Figure 38] (a) A front view of the main reel relay board 742 as seen from the front. (b) A top view of the main reel relay board 742 as seen from above. (c) A bottom view of the main reel relay board 742 as seen from the bottom. [Figure 39] (a) A front view of the main storage compartment 744 as seen from the front. (b) A top view of the main storage compartment 744 as seen from above. (c) A front perspective view of the main storage compartment 744 as seen from diagonally above the front. [Figure 40] (a) A front view of the main side cover 746 as seen from the front. (b) A top view of the main side cover 746 as seen from above. (c) A front perspective view of the main side cover 746 as seen from diagonally above the front. [Figure 41] (a) A front view of the sheet metal member 710 as seen from the front. (b) A top view of the sheet metal member 710 as seen from above. (c) A rear view of the sheet metal member 710 as seen from the rear. [Figure 42] (a) A front view of the sheet metal member 710 with the main housing 744 fitted inside, as seen from the front. (b) A rear view of the sheet metal member 710 with the main housing 744 fitted inside, as seen from the rear. (c) A side view showing how the main housing 744 is attached to the sheet metal member 710. [Figure 43] (a) A side view showing the procedure for attaching the main side housing 744 and the main side reel side relay board 742 to the sheet metal member 710. (b) A side view showing the procedure for attaching the main side cover 746 to the sheet metal member 710 to which the main side housing 744 and the main side reel side relay board 742 have been attached. [Figure 44] This is a plan view showing the main reel relay board 742 and the sub-reel relay board 772 side by side. [Figure 45] This is a front view showing the inside of the main body 101, illustrating the connection relationship between the reel relay board unit 700 and the reels 110 to 112. [Figure 46](a-1) A front view of the power supply main board 640 and power supply sub-board 670 as seen from the front. (a-2) A bottom view of the power supply main board 640 and power supply sub-board 670 as seen from the direction indicated by symbol D (bottom) in the front view of (a-1). (b-1) A front view of the reel main board 742 and reel sub-board 772 as seen from the front. (b-2) A top view of the reel main board 742 and reel sub-board 772 as seen from the direction indicated by symbol U (top) in the front view of (b-1). [Figure 47] (a) A side view showing the state before the reel relay board unit 700 is attached to the power supply relay board unit 600. (b) A side view showing the state after the reel relay board unit 700 has been attached to the power supply relay board unit 600. [Figure 48] (a) A side view of speaker 910. (b) A side view of speaker unit 900, showing an example in which screw 930 is held by the yoke 914c of speaker 910. (c) A side view of speaker unit 900, showing an example in which screw 931 is held by the yoke 914c of speaker 910 through speaker cover 920. [Figure 49] (a) A side view of the speaker unit 900, showing an example in which the sheet metal member 710 is held by the yoke 914c of the speaker 910. (b) A side view of the speaker unit 900, showing an example in which the screw 935 and washer 936 are held by the yoke 914c of the speaker 910. [Figure 50] (a) A side view of speaker unit 900, showing an example in which the screw 937 to which the setting key 938 is hooked is held by the yoke 914c of speaker 910. (b) A side view of speaker unit 900, showing multiple examples in which the screws 940-942 to which the setting key 938 is hooked are held by the yoke 914c of speaker 910. [Figure 51] This is a side view of speaker unit 900, illustrating an example in which the yoke 914c of speaker 910 holds the screws on the circuit board. [Figure 52]This is a side view of speaker unit 900, illustrating an example in which two circuit boards connected by a connector are held in place by screws through the yoke 914c of speaker 910. [Figure 53] This is a side view of the speaker unit 900, illustrating an example in which a screw 944 that falls from a predetermined position is held in place by the yoke 914c of the speaker 910. [Figure 54] (a) A plan view of the speaker unit 950. (b) A side view of the speaker unit 950, showing an example in which screws 945-948 are held by the yoke 914c of the speaker 910. [Figure 55] (a) This figure shows the power supply main board 640 mounted horizontally on the bottom plate 264 of the main body 101. (b) This figure shows the reel main board 742 mounted vertically on the bottom plate 264 of the main body 101. [Figure 56] (a) This figure shows the power supply main board 640 mounted diagonally on the bottom plate 264 of the main body 101. (b) This figure shows the reel main board 742 mounted diagonally on the bottom plate 264 of the main body 101. [Figure 57] This diagram shows the power supply main board 640 and the reel main board 742, which are connected board to board, mounted diagonally on the bottom plate 264 of the main body 101. [Figure 58] (a) A cross-sectional view showing a part of the cross-section of the substrate according to this embodiment. (b) A side view seen from the direction indicated by reference numeral X in (a). [Figure 59] (a) A cross-sectional view showing a part of the cross-section of the substrate according to this embodiment, schematically illustrating how light from a first light source is transmitted. (b) A side view seen from the direction indicated by the letter X in (a). [Figure 60] (a) A cross-sectional view showing a part of the cross-section of the substrate according to this embodiment, schematically illustrating how light from a second light source is transmitted. (b) A side view seen from the direction indicated by the letter X in (a). [Figure 61](a) A cross-sectional view showing a part of the cross-section of the substrate according to this embodiment, schematically illustrating how dust adheres to the substrate when there is no light source. (b) A side view seen from the direction indicated by the letter X in (a). [Figure 62] (a) A cross-sectional view showing a part of the cross-section of the substrate according to this embodiment, schematically illustrating how dust adheres to the substrate when a first light source is present. (b) A side view seen from the direction indicated by the letter X in (a). [Figure 63] (a) A cross-sectional view showing a part of the cross-section of the substrate according to this embodiment, schematically illustrating how dust adheres to the substrate when a second light source of light intensity is present. (b) A side view seen from the direction indicated by the letter X in (a). [Figure 64] (a) A cross-sectional view showing a part of the cross-section of the substrate according to this embodiment, schematically showing the appearance of a damaged substrate when a light source of the first light intensity is present. (b) A side view seen from the direction indicated by the letter X in (a). [Figure 65] This is a front view of slot machine 10, seen from the front (player's side). [Figure 66] This is a perspective view of the top lamp unit 11, seen from diagonally above. [Figure 67] This is a schematic diagram illustrating the structure of a lamp unit. [Figure 68] This is a schematic diagram illustrating the structure of a modified lamp unit. [Figure 68-1] (a) is a schematic diagram similar to Figure 67 showing a portion of a light-emitting unit in which one lens cut surface is reflected in multiple reflective surfaces, and (b) is a schematic diagram similar to Figure 67 showing a portion of a light-emitting unit in which the lens cut surfaces are reflected in reflective surfaces arranged on both sides. [Figure 68-2] (a) is a schematic diagram similar to Figure 67 showing a portion of the light-emitting unit reflected in a reflective surface with a single lens cut surface on both sides, and (b) is a diagram showing a planar inner lens α132 that can be used in place of the inner lens α132 shown in (a). [Figure 68-3]This schematic diagram, similar to Figure 67, shows two light-emitting units positioned offset from each other in the front-to-back direction. [Figure 68-4] This is a schematic diagram, similar to Figure 67, showing a light-emitting unit composed of two reflective parts offset in the front-to-back direction and a common light-emitting substrate. [Figure 68-5] (a) is a schematic diagram similar to Figure 67 showing a light-emitting unit in which two light-emitting parts and reflective parts corresponding to each light-emitting part are integrally formed, and (b) is a schematic diagram similar to Figure 67 showing a light-emitting unit that is divided into two light-emitting parts but has a common light-emitting substrate and reflective parts corresponding to each light-emitting part are integrally formed. [Figure 69] Figure 65 shows an overall view of the first movable display unit 161 and the second movable display unit 162. [Figure 70] (A) is a view of the first sheet member 1610 shown in Figure 69 from below, and (B) is a view of the second sheet member 1620 shown in Figure 69 from below. [Figure 71] This diagram shows examples of combinations of performance actions between the first movable performance unit 161 on the left and the second movable performance unit 162 on the right. [Figure 72] This is a perspective view showing the rear side of the performance device 16. [Figure 73] This figure shows an example of the positional relationship between the sensor units SU1 and SU2 and the light-shielding pieces C1 and C2. [Figure 74] This is a right side view of the performance device 16. [Figure 75] This is a magnified view showing the area around sensor unit SU1 in Figure 72 (the area enclosed by the dotted circle). [Figure 76] This is a schematic diagram showing an example of a sensor unit SU1 and rib RB. [Figure 77] This is a perspective view of a pachinko machine from the front (player's side). [Figure 78] This is an external view of a pachinko machine, seen from the rear. [Figure 79] This is a simplified front view of the game board as seen from the front. [Figure 80] This shows the circuit block diagram of the control unit. [Figure 81] This shows a block diagram of a gaming machine. [Figure 82] (a) An example of a stop symbol configuration for special symbols. (b) An example of a stop symbol configuration for decorative symbols. (c) An example of a stop indicator symbol for regular symbols. [Figure 83] This is a flowchart showing the main processing flow of the main control unit. [Figure 84] This is a flowchart showing the flow of the main control unit timer interrupt processing. [Figure 85] (a) This is a flowchart of the main processing performed by the CPU of the first sub-control unit. (b) This is a flowchart of the command reception interrupt processing of the first sub-control unit. (c) This is a flowchart of the timer interrupt processing of the first sub-control unit. [Figure 86] (a) A flowchart of the main processing performed by the CPU of the second sub-control unit. (b) A flowchart of the command reception interrupt processing of the second sub-control unit. (c) A flowchart of the timer interrupt processing of the second sub-control unit. [Figure 87] (a) A flowchart of the main processing performed by the CPU of the LCD control unit. (b) A flowchart of the command reception interrupt processing of the LCD control unit. (c) A flowchart of the timer interrupt processing of the LCD control unit. (d) A flowchart of the VDP image control processing. [Figure 88] This is an explanatory diagram showing the location of the lighting unit equipped with a lighting circuit board. [Figure 89] This is a cross-sectional view aa in Figure 88. [Figure 90] This is an explanatory diagram of a wiring example. [Figure 91] This is an explanatory diagram of an example wiring structure. [Figure 92] This is an explanatory diagram of an example wiring structure. [Figure 93] This is an explanatory diagram of an example wiring structure. [Figure 94] This is an explanatory diagram of an example wiring structure. [Figure 95] This is an explanatory diagram of an example wiring structure. [Figure 96] This is an explanatory diagram of an example wiring structure. [Figure 97] This is an explanatory diagram of an example wiring structure. [Figure 98] This is an explanatory diagram of an example wiring structure. [Figure 99] This is an explanatory diagram of an example wiring structure. [Figure 100] This is an explanatory diagram of an example wiring structure. [Figure 101] This is an explanatory diagram of the liquid crystal control board. [Figure 102] This is an explanatory diagram of the liquid crystal control board. [Figure 103] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 104] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 105] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 106] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 107] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 108] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 109] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 110] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 111] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 112] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 113] This is an explanatory diagram of an example of a structure that facilitates verification. [Figure 114] A perspective view of the slot machine according to the embodiment. [Figure 115] A front view of the slot machine according to the embodiment, with the front door open. [Figure 116] Block diagram of the control unit of the slot machine according to the embodiment. [Figure 117] (a) is a diagram showing the arrangement of symbols on each reel in a planar view, and (b) is a diagram showing the types of winning combinations (including activated combinations), the symbol combinations corresponding to each winning combination, and the activation or payout of each winning combination. [Figure 118] A flowchart showing the flow of the main processing in the main control unit. [Figure 119] A flowchart showing the flow of timer interrupt processing in the main control unit. [Figure 120] (a) is a flowchart of the main processing of the first sub-control unit, (b) is a flowchart of the command reception interrupt processing of the first sub-control unit, and (c) is a flowchart of the timer interrupt processing of the first sub-control unit. [Figure 121] (a) is a flowchart of the main processing of the second sub-control unit, (b) is a flowchart of the command reception interrupt processing of the second sub-control unit, (c) is a flowchart of the timer interrupt processing of the second sub-control unit, and (d) is a flowchart of the image control processing of the second sub-control unit. [Figure 122] (A) is a top view of the circuit board, (B) is a bottom view of the circuit board, and (C) is a side view of the circuit board. [Figure 123] (A) and (B) are side views of the circuit board. [Figure 124] (A) and (B) are diagrams illustrating the functions of the circuit board. [Figure 125] This figure shows an example of how a circuit board can be used. [Figure 126] This figure shows an example of how a circuit board can be used. [Figure 127] This figure shows an example of soldering on a circuit board. [Figure 128] This figure shows an example of how a modified circuit board can be used. [Figure 129] (A) is a top view of another circuit board, (B) is a bottom view of another circuit board, and (C) is a side view of another circuit board. [Figure 130] This is a side view of another circuit board. [Figure 131] This figure shows another example of using a circuit board. [Figure 132] (A) is a top view of yet another circuit board, (B) is a bottom view of yet another circuit board, and (C) is a side view of yet another circuit board. [Figure 133] This figure shows yet another example of the use of a circuit board. [Figure 134] This is a perspective view showing the appearance of a slot machine according to one embodiment of the present invention. [Figure 135]This is a circuit block diagram of the control unit of a slot machine relating to one embodiment of the present invention. [Figure 136] This is a flowchart showing the main processing flow of the main control unit of a slot machine according to one embodiment of the present invention. [Figure 137] This flowchart shows the flow of timer interrupt processing in the main control unit of a slot machine according to one embodiment of the present invention. [Figure 138] This flowchart shows the flow of the main processing of the first sub-control unit, the command reception interrupt processing of the first sub-control unit, and the timer interrupt processing of the first sub-control unit in a slot machine according to one embodiment of the present invention. [Figure 139] This flowchart shows the flow of the second sub-control unit main processing, second sub-control unit command reception interrupt processing, second sub-control unit timer interrupt processing, and second sub-control unit image control processing of a slot machine according to one embodiment of the present invention. [Figure 140] (a) is a circuit block diagram of the main control unit of a slot machine according to one embodiment of the present invention, (b) is a table showing the contents of the start lever operation of a slot machine according to one embodiment of the present invention, and (c) is an external view of the monitor LED group of a slot machine according to one embodiment of the present invention. [Figure 141] (a) and (b) are diagrams showing the relationship between the game operation of a slot machine according to one embodiment of the present invention and the lighting patterns of related lamps. [Figure 142] (a) and (b) are diagrams showing the relationship between the game operation of a slot machine according to one embodiment of the present invention and the lighting patterns of related lamps. [Figure 143] (a) and (b) are diagrams showing the relationship between the game operation of a slot machine according to one embodiment of the present invention and the lighting patterns of related lamps. [Figure 144] (a) and (b) are diagrams showing the relationship between the game operation of a slot machine according to one embodiment of the present invention and the lighting patterns of related lamps. [Figure 145] (a) and (b) are diagrams showing the relationship between the game operation of a slot machine according to one embodiment of the present invention and the lighting patterns of related lamps. [Figure 146]This diagram shows the relationship between the game operation of a slot machine according to one embodiment of the present invention and the lighting patterns of related lamps. [Figure 147] This is a perspective view showing the appearance of a slot machine according to one embodiment of the present invention. [Figure 148] This figure shows the winning lines of a slot machine according to one embodiment of the present invention. [Figure 149] This is a circuit block diagram of the control unit of a slot machine relating to one embodiment of the present invention. [Figure 150] This diagram shows a planar unfolding of the arrangement of symbols on each reel of a slot machine according to one embodiment of the present invention. [Figure 151] This is a table explaining the types of internal winning combinations in a slot machine relating to one embodiment of the present invention. [Figure 152] (a) is a diagram showing the transitions between game states of a slot machine according to one embodiment of the present invention, and (b) is a diagram showing the transitions between performance states of a slot machine according to one embodiment of the present invention. [Figure 153] This figure shows the animation images displayed on the animation image display device in each animation state of a slot machine according to one embodiment of the present invention. [Figure 154] This diagram schematically shows a lottery table used in various processes of a slot machine according to one embodiment of the present invention. [Figure 155] Figures (a) to (e) show images of the recommended operation notification effects for a slot machine according to one embodiment of the present invention. [Figure 156] This is a flowchart showing the main processing flow of the main control unit of a slot machine according to one embodiment of the present invention. [Figure 157] This flowchart shows the flow of timer interrupt processing in the main control unit of a slot machine according to one embodiment of the present invention. [Figure 158](a) is a flowchart showing the flow of the main processing of the first sub-control unit of a slot machine according to one embodiment of the present invention, (b) is a flowchart showing the flow of the command reception interrupt processing of the first sub-control unit of a slot machine according to one embodiment of the present invention, and (c) is a flowchart showing the flow of the timer interrupt processing of the first sub-control unit of a slot machine according to one embodiment of the present invention. [Figure 159] (a) is a flowchart showing the flow of the main processing of the second sub-control unit of a slot machine according to one embodiment of the present invention; (b) is a flowchart showing the flow of the command reception interrupt processing of the second sub-control unit of a slot machine according to one embodiment of the present invention; (c) is a flowchart showing the flow of the timer interrupt processing of the second sub-control unit of a slot machine according to one embodiment of the present invention; and (d) is a flowchart showing the flow of the image control processing of the second sub-control unit of a slot machine according to one embodiment of the present invention. [Figure 160] Figure 156 is a flowchart that shows in detail the flow of the setting change process in step S101 of the main processing of the main control unit. [Figure 161] Figure 156 is a flowchart that shows in detail the flow of various lottery processes in step S104 of the main processing of the main control unit. [Figure 162] Figure 161 is a flowchart that shows in detail the flow of the point setting process in step S1102 of the various lottery processes. [Figure 163] (a) is a schematic diagram showing the contents of the point mode setting table used in the point setting process of Figure 162, (b) is a schematic diagram showing the contents of the point zone setting table used in the point setting process of Figure 162, and (c) is a schematic diagram showing the contents of the true confrontation result setting table used in the point setting process of Figure 162. [Figure 164] (a) is a flowchart showing in detail the flow of the point increase process in step S1103 of the various lottery processes in Figure 161, and (b) is a diagram schematically showing the contents of the point increase setting table used in the point increase process in Figure 164(a). [Figure 165]This is a flowchart that shows in detail the flow of the state update process in step S110 of Figure 156. [Figure 166] (a) is a flowchart showing in detail the normal state processing flow in step S1404 of Figure 165, (b) is a flowchart showing in detail the G count ceiling determination processing flow in step S1505 of Figure 166(a), and (c) is a flowchart showing in detail the point ceiling determination processing flow in step S1506 of Figure 166(a). [Figure 167] Figure 165 is a flowchart that shows in detail the process of processing the pre-confrontation state in step S1406. [Figure 168] This is a flowchart that shows in detail the flow of the confrontation state processing in step S1408 of Figure 165. [Figure 169] (a) is a flowchart showing in detail the flow of the pseudo-BB state processing in step S1410 of Figure 165, and (b) is a flowchart showing in detail the flow of the AT state processing in step S1412 of Figure 165. [Figure 170] (a) is a flowchart showing in detail the flow of the bonus specialization pre-announcement state processing in step S1414 of Figure 165, (b) is a flowchart showing in detail the flow of the bonus specialization pre-announcement state (final) processing in step S1416 of Figure 165, (c) is a flowchart showing in detail the flow of the bonus specialization state processing in step S1418 of Figure 165, and (d) is a flowchart showing in detail the flow of the ending state processing in step S1420 of Figure 165. [Figure 171] This is a flowchart showing in detail the flow of the advantageous interval update process in step S1421 of Figure 165. [Figure 172] This table shows a specific example of gameplay progression in the slot machine of this embodiment. [Modes for carrying out the invention]

[0010] <<Embodiment 1>> The following describes a gaming machine (slot machine) according to Embodiment 1 of the present invention with reference to the drawings.

[0011] <Overall Structure> First, the overall configuration of the slot machine 100 will be explained using Figure 1. Figure 1 is an external perspective view of the slot machine 100 as seen from the front (player side).

[0012] The slot machine 100 shown in Figure 1 is an example of a gaming machine according to the present invention, and comprises a main body 101 and a front door 102 attached to the front of the main body 101 and which can be opened and closed relative to the main body 101. Inside the center of the main body 101 (not shown), there are three reels (left reel 110, middle reel 111, right reel 112) with multiple types of symbols arranged on their outer surfaces, and are configured to rotate inside the slot machine 100. These reels 110 to 112 are driven to rotate by a drive device such as a stepping motor.

[0013] In this embodiment, each design is printed at equal intervals in appropriate numbers on a strip-shaped member, and this strip-shaped member is attached to a predetermined circular cylindrical frame material to constitute each reel 110 to 112 (see Figure 4). From the player's perspective, approximately three designs on each reel 110 to 112 are displayed vertically through a design display window 113 provided in front of each reel 110 to 112, so that a total of nine designs are visible.

[0014] By rotating each of the reels 110 to 112, the combination of symbols visible to the player changes. In other words, each of the reels 110 to 112 functions as a display device that can display multiple combinations of symbols in a variable manner. In addition to reels, other electronic image display devices such as liquid crystal displays can also be used as such display devices. Furthermore, in this embodiment, three reels are provided inside the center of the slot machine 100, but the number of reels and their installation positions are not limited to this.

[0015] A backlight 264 (see Figure 18) is positioned on the back of each reel 110 to 112 to illuminate the individual symbols displayed in the symbol display window 113 (details will be described later). Inside the slot machine 100, an optical sensor (also called an index sensor; not shown) consisting of a light-emitting part and a light-receiving part is provided near each reel 110 to 112, and a light-shielding piece of a certain length provided on the reel passes between the light-emitting and light-receiving parts of this optical sensor. Based on the detection results of this sensor, the rotational position of the symbols on the reels is determined, and the reels 110 to 112 are stopped so that the desired symbols are displayed on the winning line.

[0016] The notification lamp 123 is a lamp that informs the player, for example, that they have internally won a specific winning combination (specifically, Special Combination 1 or Special Combination 2) in the internal lottery described later, or that they are in bonus game mode (in Special Combination 1 or 2 game mode). The coin insertion lamp 124 is a lamp that informs the player that they can insert coins. The replay lamp 122 is a lamp that informs the player that they can replay the current game (no coin insertion is required) if they won the replay combination, which is one of the winning combinations, in the previous game. The reel panel lamp 128 is a lamp for visual effects.

[0017] The bet buttons (first operating means) 130 to 132 are buttons for inserting a predetermined number of tokens (called credits) electronically stored in the slot machine 100. In this embodiment, each time bet button 130 is pressed, one token is inserted up to a maximum of three tokens, when bet button 131 is pressed, two tokens are inserted, and when bet button 132 is pressed, three tokens are inserted. Hereinafter, bet button 132 will also be called the MAX bet button. The game token insertion lamp 129 lights up a number of lamps corresponding to the number of tokens inserted, and when the predetermined number of tokens has been inserted, the game start lamp 121 lights up to indicate that the game can be started.

[0018] The performance button 156 is an operating means that can be operated by the player. In this embodiment, it is a button that can be pressed by the player and is used for various performance effects. The operating means used for such performance effects is not limited to a button, and may consist of, for example, a lever or a touch panel, or multiple operating means may be provided.

[0019] The medal slot 141 is where the player inserts medals to start playing. That is, medals can be inserted electronically using the bet buttons 130 to 132, or by actually inserting medals into the medal slot 141 (insertion operation). Insertion includes both methods.

[0020] The stored tokens indicator 125 is a display for showing the number of tokens electronically stored in the slot machine 100. The game information indicator 126 is a display for showing various internal information (for example, the number of tokens dispensed during bonus gameplay) numerically. The payout tokens indicator 127 is a display for showing the number of tokens dispensed to the player as a result of winning a prize, and is also used as an instruction monitor for performing button-press sequence effects. In this example, the stored tokens indicator 125, the game information indicator 126, and the payout tokens indicator 127 are 7-segment (SEG) displays.

[0021] The start lever (second operating means) 135 is a lever-type switch for starting the rotation of reels 110 to 112. That is, by inserting the desired number of tokens into the token slot 141 or by operating the bet buttons 130 to 132 and then operating the start lever 135, the reels 110 to 112 will start to rotate. The operation of the start lever 135 is called the game start operation.

[0022] The stop button unit 136 is provided with stop 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 due to the operation of the start lever 135, and each button is associated with a specific reel. In addition, a light-emitting element may be provided inside each stop button 137 to 139, and if the stop buttons 137 to 139 can be operated, the light-emitting element can be illuminated to inform the player.

[0023] Hereinafter, operations performed on stop buttons 137 to 139 will be referred to as stop operations, with the first stop operation being the first stop operation (hereinafter also referred to as "1st stop" or "1st stop"), the next stop operation being the second stop operation (hereinafter also referred to as "2nd stop" or "2nd stop"), and the final stop operation being the third stop operation (hereinafter also referred to as "3rd stop" or "3rd stop").

[0024] Furthermore, the reels that are stopped in response to these stopping operations are referred to as the first stop reel, the second stop reel, and the third stop reel, respectively. In addition, the order in which the stop buttons 137 to 139 are pressed to stop all of the rotating reels 110 to 112 is called the operation order (or pressing order).

[0025] The order of operation (pressing order) for stop buttons 137 to 139 is as follows, assuming the left stop button 137 is "left or R", the middle stop button 138 is "middle or C", and the right stop button 139 is "right or R": (1) Left → Middle → Right operation order (Left-Middle-Right or LCR), (2) Left → Right → Middle operation order (Left-Right-Middle or LRC), (3) Middle → Left → Right operation order (Middle-Left-Right or CLR), (4) Middle → Right → Left operation order (Middle-Right-Left or CRL), (5) Right → Left → Middle operation order (Right-Left-Middle or RLC), and (6) Right → Middle → Left operation order (Right-Middle-Left or RCL).

[0026] The medal return button 133 is a button to be pressed to remove medals if they become jammed. The settlement button 134 is a button to settle the medals electronically stored in the slot machine 100 and the medals that have been bet, and to dispense 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.

[0027] A title panel 162 is provided below the stop button unit 136 for displaying the model name and attaching various certification labels. Below the title panel 162 are a medal payout port 155 and a medal tray 161. The sound hole 181 is a hole for outputting sound from a speaker located inside the slot machine 100 to the outside. The side lamps 144 provided on the left and right sides of the front door 102 are decorative lamps to enhance the gaming experience. A performance device 160 is located above the front door 102, and a sound hole 143 is provided above the performance device 160.

[0028] This display device 160 is equipped with a shutter (shielding device) 163 consisting of two horizontally opening and closing shutters, a right shutter 163a and a left shutter 163b, and a liquid crystal display device 157 (display image display device) located behind the shutter 163. When the right shutter 163a and the left shutter 163b are opened horizontally outward in front of the liquid crystal display device 157, the display screen of the liquid crystal display device 157 appears on the front of the slot machine 100 (on the player's side).

[0029] Furthermore, the display device does not have to be a liquid crystal display; any display device capable of displaying various visual effects and game information is acceptable. 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 consisting of a projector and a screen may be used. The display screen is rectangular in shape and configured so that the entire screen is visible to the player. In this embodiment, the display screen is rectangular, but it may also be square. Additionally, decorative elements (not shown) may be placed around the periphery of the display screen, so that a portion of the periphery is hidden by the decorative elements, resulting in the display screen appearing to have an irregular shape. In this embodiment, the display screen is a flat surface, but it may also be a curved surface.

[0030] Furthermore, the main unit 101 is equipped with a setting key that can be switched on and off by rotation, and a setting switch that can be pressed to change settings (setting value change operation) or to check settings. The setting key is an operation means for initiating setting changes or setting checks for setting values ​​(settings 1 to 6 in this example), and the setting switch is one of the setting means that can set one of multiple setting values.

[0031] <Winning Line> Next, we will explain the winning lines using Figure 2. Figure 2 is a diagram showing an example of the winning lines for slot machine 100.

[0032] As explained using Figure 1, the symbols on reels 110-112 are displayed vertically in approximately three positions from the symbol display window 113 located in front of each reel 110-112, resulting in a total of nine symbols being visible to the player.

[0033] Specifically, the symbols displayed in the upper position of the left reel 110 (position 1 in the diagram; also called symbol position 1) are called the upper left reel symbols, the symbols displayed in the middle position of the left reel 110 (position 2 in the diagram; also called symbol position 2) are called the middle left reel symbols, and the symbols displayed in the lower position of the left reel 110 (position 3 in the diagram; also called symbol position 3) are called the lower left reel symbols.

[0034] Furthermore, the symbols displayed in the upper position of the middle reel 111 (position 4 in the diagram; also called symbol position 4) are called the upper middle reel symbols, the symbols displayed in the middle position of the middle reel 111 (position 5 in the diagram; also called symbol position 5) are called the middle middle reel symbols, and the symbols displayed in the lower position of the middle reel 111 (position 6 in the diagram; also called symbol position 6) are called the lower middle reel symbols.

[0035] Furthermore, the symbol displayed in the upper position of the right reel 112 (position 7 in the diagram; also called symbol position 7) is called the upper right reel symbol, the symbol displayed in the middle position of the right reel 112 (position 8 in the diagram; also called symbol position 8) is called the middle right reel symbol, and the symbol displayed in the lower position of the right reel 112 (position 9 in the diagram; also called symbol position 9) is called the lower right reel symbol.

[0036] In this embodiment, the only winning line provided is the middle winning line L1 (hereinafter sometimes simply referred to as "winning line L1"), which consists of the middle symbol on the left reel (symbol position 2), the middle symbol on the middle reel (symbol position 5), and the middle symbol on the right reel (symbol position 8).

[0037] Here, the winning line is a line set at the stopping position of the symbols that can be seen through the symbol display window 113, and is the line on which it is determined whether or not a symbol combination corresponding to the winning combination explained using Figure 5 is displayed (whether or not it is matched). The valid winning lines (hereinafter sometimes simply referred to as "valid lines") are predetermined by the number of medals bet as the game medium.

[0038] The slot machine 100 of this embodiment is a machine that only accepts bets of 3 coins. When the number of coins inserted is less than 3, none of the winning lines are active. When 3 coins are bet, winning line L1 becomes active. Once a winning line is active, the player can start playing by operating the start lever 135.

[0039] Hereinafter, in the symbol display window 113, symbol positions 2, 5, and 8 on the winning line L1 may be referred to as "winning positions," while the other symbol positions, i.e., symbol positions 1, 3, 4, 6, 7, and 9, may be referred to as "non-winning positions." In other words, a winning position is a position on the winning line where a symbol that constitutes a winning combination stops.

[0040] Furthermore, the number of winning lines is not limited to one. For example, in addition to winning line L1, a total of three lines may be set as valid winning lines: an upper winning line consisting of the upper symbols on the left reel, the upper symbols on the middle reel, and the upper symbols on the right reel; and a lower winning line consisting of the lower symbols on the left reel, the lower symbols on the middle reel, and the lower symbols on the right reel. Alternatively, a number of winning lines corresponding to the number of medals wagered may be set as valid winning lines.

[0041] <Department Head> Next, the circuit configuration of the control unit of the slot machine 100 will be explained in detail using Figure 3. Note that Figure 3 shows a circuit block diagram of the control unit.

[0042] The control unit of the slot machine 100 is broadly composed of a main control unit 300 (first control means) that mainly controls gameplay, a first sub-control unit 400 (second control means) that mainly controls the game's effects in response to command signals (hereinafter simply referred to as "commands") transmitted by the main control unit 300, and a second sub-control unit 500 (second control means) that controls various devices based on commands transmitted from the first sub-control unit 400.

[0043] <Main Control Unit> First, let's describe the main control unit 300 of the slot machine 100. The main control unit 300 is equipped with a basic circuit 302 that controls the entire main control unit 300. This basic circuit 302 is equipped with a CPU 304, a ROM 306 for storing control program data, lottery data used when internally drawing winning combinations, reel stopping positions, etc., a RAM 308 for temporarily storing data, an I / O 310 for controlling the input and output of various devices, a counter timer 312 for measuring time, number of spins, etc., and a WDT (watchdog timer) 314. Note that other storage devices may be used instead of ROM 306 and RAM 308, and this also applies to the first sub-control unit 400 and the second sub-control unit 500, which will be described later.

[0044] The CPU 304 of this basic circuit 302 operates by inputting a clock signal of a predetermined period output by the crystal oscillator 315b as the system clock. Furthermore, when power is turned on, the CPU 304 sends 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 sends an interrupt request to the CPU 304 at each interrupt time. The CPU 304 then performs monitoring of various sensors and transmission of drive pulses based on this interrupt request. For example, if the clock signal output by the crystal oscillator 315b is set to 8MHz, the frequency division value of the counter timer 312 is set to 1 / 256, and the frequency division data in the ROM 306 is set to 47, the reference interrupt time will be 256 × 47 ÷ 8MHz = 1.504ms.

[0045] The main control unit 300 includes a random value generation circuit 316 (which is assumed to have two built-in random value generation circuits) that derives a value in the range of 0 to 65535 each time it receives a clock signal output by the crystal oscillator 315a, and a start signal output circuit 338 that outputs a start signal (reset signal) when the power is turned on. The CPU 304 starts game control (starts the main processing of the main control unit, which will be described later) when it receives a start signal from the start signal output circuit 338.

[0046] The random value generation circuit 316 generates random values ​​for use in the basic circuit 302. There are two main methods for generating random values ​​in this random value generation circuit 316: counter mode and random number mode. In counter mode, a number that counts up (down) at predetermined time intervals is acquired, and that number is derived as a random value. There are two further methods in random number mode. The first method in random number mode is to perform an operation using a predetermined function (e.g., a modulus function) with a random value seed, and derive the result of this operation as a random value. The second method is to read a number from a random number table in the range of 0 to 65535, and derive the read number as a random value. The random value generation circuit 316 acquires irregular values ​​by utilizing the white noise superimposed on the signals input to the sensor circuit 320 from various sensors 318. The random number generation circuit 316 uses the values ​​obtained in this way as the initial value of a counter that counts up (down) in counter mode, as a seed for random numbers, or to determine the starting position for reading the random number table.

[0047] Furthermore, the main control unit 300 is equipped with a sensor circuit 320, and the CPU 304 monitors the status of various sensors 318 (bet button 130 sensor, bet button 131 sensor, bet button 132 sensor, medal reception sensor for medals inserted from the medal slot 141, start lever 135 sensor, stop button 137 sensor, stop button 138 sensor, stop button 139 sensor, settlement button 134 sensor, medal dispensing sensor for medals dispensed from the medal dispensing device 180, optical sensor for reel 110, optical sensor for reel 111, optical sensor for reel 112, etc.) at interrupt intervals.

[0048] Furthermore, when the sensor circuit 320 detects the H level of the start lever sensor, it outputs a signal indicating this detection to the random value generation circuit 316. Upon receiving this signal, the random value generation circuit 316 latches the value at that moment and stores it in a register that stores random values ​​to be used for the lottery.

[0049] Two medal reception sensors are installed in the internal passage of the medal slot 141 to detect whether or not a medal has passed through. Two start lever sensors are installed inside the start lever 135 to detect the start operation by the player. Stop button sensors 137, 138, and 139 are installed on the respective stop buttons 137 to 139 to detect the operation of the stop buttons by the player.

[0050] The bet button 130 sensor, bet button 131 sensor, and bet button 132 sensor are installed on the respective coin insertion buttons 130 to 132 and detect the insertion operation when inserting coins electronically stored in RAM 308 as coins to be used in the game. The settlement button 134 sensor is installed on the settlement button 134. When the settlement button 134 is pressed once, the electronically stored coins are settled. The coin payout sensor is a sensor for detecting the coins to be dispensed by the coin payout device 180. Note that each of the above sensors may be a non-contact type sensor or a contact type sensor.

[0051] The optical sensors on reel 110, reel 111, and reel 112 are installed at predetermined positions on the mounting bases of each reel 110 to 112, and each time a light-shielding piece provided on the reel frame passes over them, they reach an L level. When the CPU 304 detects this signal, it determines that the reel has rotated once and resets the rotation position information of the reel to zero.

[0052] The main control unit 300 includes a drive circuit 322 that drives the stepping motors provided on the reel devices 110 to 112, a drive circuit 324 that drives the solenoid provided on the medal selector 170 that sorts the inserted medals, a drive circuit 326 that drives the motor provided on the medal dispensing device 180, and a drive circuit 328 that drives various lamps 336 (winning line indicator lamp 120, notification lamp 123, game medal insertion ready lamp 124, replay lamp 122, game medal insertion lamp 129, game start lamp 121, stored number indicator 125, game information indicator 126, and payout number indicator 127).

[0053] Furthermore, the basic circuit 302 is connected to an information output circuit 334 (external centralized terminal board 248), and the main control unit 300 outputs game information (for example, game status) of the slot machine 100 to an information input circuit 652 provided by an external hall computer (not shown) via this information output circuit 334.

[0054] Furthermore, the main control unit 300 includes a voltage monitoring circuit 330 that monitors the voltage value of the power supply supplied to the main control unit 300 from the power management unit (not shown). The voltage monitoring circuit 330 outputs a low voltage signal to the basic circuit 302 indicating that the voltage has dropped when the voltage value of the power supply falls below a predetermined value (9V in this embodiment).

[0055] Furthermore, the main control unit 300 is equipped with an output interface for sending commands to the first sub-control unit 400, enabling communication with the first sub-control unit 400. Information communication between the main control unit 300 and the first sub-control unit 400 is unidirectional; the main control unit 300 is configured to send signals such as commands to the first sub-control unit 400, but the first sub-control unit 400 is configured not to send signals such as commands to the main control unit 300.

[0056] <Deputy Commander> Next, the first sub-control unit 400 of the slot machine 100 will be described. The first sub-control unit 400 receives control commands transmitted by the main control unit 300 via an 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 spins, etc. The CPU 404 of the basic circuit 402 operates by receiving a clock signal of a predetermined period output by a crystal oscillator 414 as the system clock. The ROM 406 stores control programs and data for controlling the entire first sub-control unit 400, data for controlling the backlight lighting patterns and various indicators, etc.

[0057] The CPU 404 transmits 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 sends an interrupt request to the CPU 404 at each interrupt time. The CPU 404 controls each IC and circuit based on the timing of this interrupt request.

[0058] Furthermore, the first sub-control unit 400 is equipped with a sound source IC 418, to which speakers 272 and 277 are connected via an output interface. The sound source IC 418 controls the sound output from the amplifier and speakers 272 and 277 in response to commands from the CPU 404. The sound source IC 418 is connected to an S-ROM (sound ROM) in which sound data is stored, and the sound data acquired from this ROM is amplified by the amplifier and output from speakers 272 and 277.

[0059] Furthermore, the first sub-control unit 400 is provided with a drive circuit 422, and various lamps 420 (upper lamp, lower lamp, side lamp 144, title panel 162 lamp, etc.) are connected to the drive circuit 422 via an input / output interface.

[0060] Furthermore, the first sub-control unit 400 is equipped with a drive circuit 424 that drives the motor of the shutter 163, and the shutter 163 is connected to the drive circuit 424 via an output interface. This drive circuit 424 outputs a drive signal to a stepping motor (not shown) provided on the shutter 163 in response to a command from the CPU 404.

[0061] Furthermore, the first sub-control unit 400 is equipped with a sensor circuit 426, to which a shutter sensor 428 capable of detecting the position of the shutter 163 and an effect button sensor 430 capable of detecting the pressing operation of the effect button 156 are connected via an input interface. The CPU 404 monitors the status of the shutter sensor 428 and the effect button sensor 430 at interrupt intervals.

[0062] Furthermore, the CPU 404 transmits and receives signals to the second sub-control unit 500 via an output interface. The second sub-control unit 500 performs various controls of the performance device 160, including the display control of the performance image display device 157 (hereinafter also referred to as the "liquid crystal display device 157"). The second sub-control unit 500 may be composed of multiple 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 performance drive devices (for example, a control unit that controls the motor drive of the shutter 163).

[0063] The second sub-control unit 500 receives control commands 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 these control commands. This basic circuit 502 is equipped with a CPU 504, RAM 508 for temporarily storing data, I / O 510 for controlling the input and output of various devices, and a counter timer 512 for measuring time, counts, etc. The CPU 504 of the basic circuit 502 operates by receiving a clock signal of a predetermined period output by a crystal oscillator 514 as the system clock. The ROM 506 stores control programs and data for controlling the entire second sub-control unit 500, data for image display, etc.

[0064] The CPU 504 transmits frequency division data 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 frequency division data and sends an interrupt request to the CPU 504 at each interrupt time. The CPU 504 controls each IC and circuit based on the timing of this interrupt request.

[0065] Furthermore, the second sub-control unit 500 is equipped with a VDP 516 (video display processor), to which a ROM 506 and a VRAM 518 are connected via a bus. Based on signals from the CPU 504, the VDP 516 reads image data stored in the ROM 506, generates a display image using the work area of ​​the VRAM 518, and displays the image on the presentation image display device 157.

[0066] <Pattern arrangement> Next, Figure 4 will be used to explain the arrangement of symbols on each of the reels 110 to 112 described above. Figure 4 is a diagram showing the arrangement of symbols on each reel (left reel 110, middle reel 111, right reel 112) in a planar view.

[0067] Each reel 110 to 112 has a predetermined number of symbols (20 symbols numbered 0 to 19 in this embodiment) of several types (9 types in this embodiment) shown on the right side of the figure. The numbers 0 to 19 shown on the left end of the figure indicate the positions of the symbols on each reel 110 to 112. For example, in this embodiment, the symbol number 0 on the left reel 110 is a "watermelon symbol", the symbol number 1 on the middle reel 111 is a "bell symbol", and the symbol number 0 on the right reel 112 is a "replay symbol".

[0068] <Types of prize winning roles> Next, Figure 5 will be used to explain the types of winning combinations in slot machine 100. Figure 5 shows the types of winning combinations, the names of the condition devices, the symbol combinations corresponding to each winning combination, the payout amount, and remarks.

[0069] The winning combinations in Slot Machine 100 include special combinations (Special Combination 1, Special Combination 2) and general combinations (Replay Combinations 1-3, Minor Combinations 1-5), etc. Note that the types of winning combinations are not limited to these and can be arbitrarily selected; some winning combinations are omitted from the illustration in Figure 5.

[0070] <Types of prizes / special roles> In this embodiment, among the winning combinations, Special Combination 1 and Special Combination 2 are combinations that transition the player to a special game state in which a predetermined benefit is granted. In addition, the Replay Combination is a combination that allows the player to continue playing without inserting new tokens (a combination that grants replay). These winning combinations are sometimes referred to as "activation combinations."

[0071] Furthermore, in this embodiment, "winning" also includes cases where combinations of symbols for active roles that do not result in medal payouts (do not involve the dispensing of medals) are displayed on the winning line, for example, winning Special Role 1, Special Role 2, and Replay Role.

[0072] Special Role 1 and Special Role 2 are winning roles that, upon internal winning, transition the game state to the Special Role 1 / 2 internal winning state (RT3), and upon winning, transition the game state to the Special Role 1 / 2 game state (RT4). If more than a specified number of medals (for example, 200 medals) are paid out in the Special Role 1 / 2 game state (RT4), the game state transitions to the low probability of replay state (RT1). Each game state (RT1~RT4) will be described later.

[0073] The symbol combinations corresponding to Special Win 1 (BB) are "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 Win 2 (RB) is "BAR symbol - BAR symbol - BAR symbol".

[0074] When a special role 1 or special role 2 is internally won, the special role internal win flag corresponding to that internally won role is set to ON (stored in a predetermined area of ​​the RAM 308 of the main control unit 300). This flag remains ON until the internally won role is achieved, making it easier to achieve that internally won role in subsequent games. In other words, in a game in which a special role 1 or special role 2 is internally won, even if that special role is not achieved, the game will be in a state where that special role has been internally won in subsequent games, making it easier to achieve the symbol combination corresponding to the special role.

[0075] <Types of winning combinations / Re-play combinations> Replay combinations 1-3 are winning combinations (activating combinations) that allow you to play the next round without inserting any tokens (game currency), and no tokens are paid out. The corresponding symbol combinations are shown in Figure 5.

[0076] A "re-play" bonus is any bonus that allows the player to play the next game without inserting any more tokens. Therefore, for example, when a player hits a re-play bonus, tokens may be automatically inserted for the next game (the number of tokens inserted is reset in the token insertion memory area), or the tokens inserted in the game in which the re-play bonus was hit may be carried over and used in the next game. The special replay, which will be described later, is also one type of re-play bonus.

[0077] <Types of winning combinations / minor wins> Minor wins 1 through 5 are winning combinations that, when achieved, result in a predetermined number of medals being dispensed (a set number of medals being dispensed).

[0078] Small win 1 (watermelon) is a winning combination where, upon hitting the target, the symbol combination "watermelon symbol - watermelon symbol - watermelon symbol" stops and is displayed on the winning line L1, resulting in the payout of 5 medals.

[0079] Small win 2 (Cherry) is a winning combination where, upon winning, the symbol combination "Cherry symbol-ANY-ANY" stops and is displayed on the winning line L1, and two medals are paid out. Note that the symbol combination "Cherry symbol-ANY-ANY" only requires that the symbol on the left reel 110 be a "Cherry symbol," and the symbols on the middle reel 111 and the right reel 112 can be any symbol.

[0080] Hereafter, these two minor roles, watermelon and cherry, may be collectively referred to as "rare roles." However, rare roles are not limited to these specific winning roles; they may include either one of them, or other winning roles as well.

[0081] Furthermore, in the AT state described later, if you hit a rare role, a lottery will be held to add more games or sets (making it easier to win the lottery). On the other hand, even if you hit a rare role in the ED state, a lottery to add more games or sets will not be held.

[0082] Small win 3 (ordered bell) consists of six types of winning combinations: small win 3a to small win 3f. In this example, a predetermined probability (approximately 1 / 6 in this example, common to all settings) is determined by a lottery, and if the order of operation (pressing order) of the stop buttons 137 to 139 matches the winning combination that was internally selected, a win is achieved and 12 medals are paid out. In other words, small win 3 (ordered bell) is a winning combination whose advantage varies depending on the operation of the stop buttons 137 to 139.

[0083] Small win 4 (common bell) is a winning combination in which the symbol combination "bell symbol-bell symbol-bell symbol" stops and is displayed on the winning line L1, regardless of the order (pressing order) or timing of the stop operation using stop buttons 137-139, and 12 medals are paid out.

[0084] The small winning combination 5 (a single winning combination) is a winning combination in which, regardless of the 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.

[0085] <Types of RT-based game states> Next, the types and transitions of the RT-based game states in the slot machine 100 will be described.

[0086] <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") that is first set immediately after the power-on of the slot machine 100, etc., and is a game state that is relatively disadvantageous to the player compared to other game states.

[0087] In this example, in this replay low probability state (RT1), when winning the replay winning combination 2 (upgraded replay 1) or the replay winning combination 3 (upgraded 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 winning combination 1 or the special winning combination 2, it transitions to the special winning combination 1·2 internal winning state (RT3) described later.

[0088] <Replay high probability state (RT2)> The replay high probability state is a game state in which the internal winning probability of the replay is higher than that in the replay low probability state (RT1).

[0089] In this example, in this replay high probability state (RT2), when internally winning the special winning combination 1 or the special winning combination 2, it transitions to the special winning combination 1·2 internal winning state (RT3) described later.

[0090] <Special winning 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. When the player performs a stop operation at a predetermined timing, the symbol combination corresponding to the special role corresponding to this flag can be displayed, which is a gaming state.

[0091] 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.

[0092] <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 re-game state (RT1).

[0093] 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 for a specified role, when there are winnings for a specified number of times (for example, 8 times), or when a specified number of games (for example, 6 times) are played.

[0094] <Transition of AT-based gaming states> Next, the AT-based gaming states will be described.

[0095] 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 where 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 where 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.

[0096] Here, the operation navigation refers to an effect that notifies the stop operation mode (for example, the correct operation order and the timing of the stop operation) of stop buttons 137 to 139 in order to obtain medals or maintain an advantageous gaming state. For example, an effect that notifies the correct operation order of a pressing order role (for example, minor role 3 (pressing order bell LCR)) (for example, an effect that displays characters such as "left → middle → right") etc. corresponds to this.

[0097] If the stopping operation is performed according to the instructions on the operation navigation, it will result in a favorable outcome for the player. Therefore, a high navigation state is a more favorable game state for the player than a low navigation state. Specifically, "favorable" here means that the ratio of the total number of game media dispensed by the game machine to the total number of game media used by the player as bets during a predetermined period of play, also known as the payout rate (payout rate), is favorable.

[0098] In this example, the low navigation state is defined as a state where the probability of executing the operation navigation is low, and the high navigation state is defined as a state where the probability of executing the operation navigation is higher than that of the low navigation state. However, the low navigation state may also be defined as a state where the operation navigation is not executed, and the high navigation state as a state where the operation navigation is executed.

[0099] Each game state in AT (Automatic Trigger) systems is subdivided and managed, and these are called performance states. Specifically, the performance states in low navigation states are the normal game state, while the performance states in high navigation states include the normal state, confirmed notification state, judgment state, pull-back state, AT1 state, AT2 state, and ED (ending) state. In principle, the AT1 state, AT2 state, and ED state are states in which the payout increases.

[0100] In this embodiment, when a certain condition is met in the normal game state with low navigation (for example, when a winning combination other than a miss is achieved), the game transitions to the normal state with high navigation. After that, the game transitions in the order of confirmed notification state → AT1 state → judgment state, and from this judgment state, there are routes to transition to the normal game state or AT2 state via the pull-back state, or routes to transition directly from the judgment state to the AT2 state, etc.

[0101] AT state (AT1 state, AT2 state) is a state in which AT gameplay is possible for a predetermined number of times (for example, 30 games per set), and is a more advantageous state for the player than the normal game state with low navigation or the normal state with high navigation.

[0102] 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) is performed to determine whether to continue the AT game. If this set continuation lottery is won, an additional predetermined number of AT games (in this example, 30 games per set) are granted, extending the AT state. Also, if the conditions for transitioning to the normal game state are met while in the AT state (in this example, when all games in the AT state have been played), the game will transition to the normal game state from the next game.

[0103] Furthermore, when the number of remaining games in the high-navigation state falls below a predetermined number (for example, 20 games), the game transitions to the ED state, where an ED (ending) sequence is performed to indicate the end of the high-navigation state.

[0104] Furthermore, the conditions for transitioning to the ED state are not limited to the remaining number of games in the high-navigation state being 20 or less; for example, the predetermined number of games may be 20 or more, or it may be 20 or less, or "number of acquired coins + expected difference in acquired coins > 2000".

[0105] <Main processing of the main control unit> First, using Figure 6, we will explain the main processing performed by the CPU 304 of the main control unit 300. Note that this figure is a flowchart showing the flow of the main processing of the main control unit.

[0106] As described above, the main control unit 300 is equipped 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, upon receiving this startup signal, resets and starts up via a reset interrupt and executes the main control unit processing shown in Figure 6 according to the control program pre-stored in the ROM 306.

[0107] When power is turned on, the first step, S101, performs various initial settings. These initial settings include setting the initial stack value for the CPU304's stack pointer (SP), disabling interrupts, initializing the I / O310, initializing various variables to be stored in RAM308, and enabling and setting the initial value for WDT314.

[0108] Step S102 executes the bet setting / start operation acceptance process. Here, it checks whether or not medals have been inserted and prepares to send an insertion command indicating that medals have been inserted. If a re-spin win occurred in the previous game, the same number of medals as those inserted in the previous game will be inserted, so the player does not need to insert medals. It also checks whether or not the start lever 135 has been operated, and if the start lever 135 has been operated, the process proceeds to step S103.

[0109] Step S103 determines the number of medals inserted and performs a winning line confirmation process to determine the valid winning lines.

[0110] In step S104, the random number generated by the random number generation circuit 316 is obtained, and the internal prize draw process is performed. In the internal prize draw process, the prize draw table stored in the ROM 306 is read according to the current game state, and an internal draw is performed using this and the obtained random number, and preparations are made to send an internal draw command indicating the result of this internal draw to the first sub-control unit 400. If the internal draw results in an internal win for any prize (including the activated prize), the flag for that prize is turned on.

[0111] In step S105, a reel stop data selection process is performed to select reel stop data based on the results of the internal lottery process for winning combinations. This reel stop data is stored in the ROM 306 of the main control unit 300. Also in step S105, preparations are made to send a reel stop data command containing information about the selected reel stop data to the first sub-control unit 400.

[0112] In step S106, based on the operation of the start lever, the performance state control process related to the control of the AT system game state described above is executed. In step S107, the performance processing is executed. In this performance processing, various performances are controlled.

[0113] In step S108, the reel rotation start process is executed, and all reels 110 to 112 begin rotating.

[0114] In step S109, reel stop control processing is performed. In the reel stop control processing, stop buttons 137 to 139 become available. When any of the stop buttons are pressed, the stop table of reel stop data is referenced to stop the reel corresponding to the pressed stop button, and one of the reels 110 to 112 is stopped according to the number of retracted frames set in the stop table. Once all reels 110 to 112 have stopped, the process proceeds to step S110. In step S109, preparations are made to send a stop button reception command (specifically, a stop button reception 1 command for the first stop operation, a stop button reception 2 command for the second stop operation, and a stop button reception 3 command for the third stop operation) to the first sub-control unit 400 for each stop operation, and preparations are made to send a reel stop command (specifically, a reel stop 1 command for the first stop reel, a reel stop 2 command for the second stop operation, and a reel stop 3 command for the third stop operation) to the first sub-control unit 400 for each stop operation.

[0115] In step S110, a prize determination process is performed to determine if a prize has been won. In this prize determination process, if a combination of symbols corresponding to a prize is displayed on the activated prize line 114, it is determined that a prize has been won for that prize. For example, if "Bell-Bell-Bell" is lined up on the activated prize line, it is determined that a prize for small prize 3 (Bell) has been won. Also in this step S110, preparations are made to send a prize determination command indicating the result of the prize determination to the first sub-control unit 400.

[0116] Step S111 performs the medal distribution process. In the medal distribution process, if any winning combination that yields a payout has been achieved, the number of medals corresponding to that winning combination is paid out according to the number of winning lines.

[0117] In step S112, game state control processing is performed. In game state control processing, processing related to the transition of each game state of the RT system is performed, and the game state is changed when the start or end conditions for those states are met. Preparations are also made to send a game state command that includes information indicating the current game state of the RT system.

[0118] In step S113, the performance state control process related to the control of the AT system game state described above is executed. In step S114, the high navigation state termination process related to the termination of the high navigation state is executed.

[0119] This completes one game. From here on, the game will proceed by returning to step S102 and repeating the process described above. The various commands prepared in each of the above steps will be transmitted in the command setting transmission process of the main control unit timer interrupt process (step S206 in Figure 7), which will be described later.

[0120] <Main control timer interrupt processing> Next, using Figure 7, we will explain the main control unit timer interrupt processing executed by the CPU 304 of the main control unit 300. Note that this figure is a flowchart showing the flow of the main control unit timer interrupt processing.

[0121] The main control unit 300 is equipped with a counter timer 312 that generates a timer interrupt signal at a predetermined interval (approximately once every 2ms in this embodiment), and the main control unit timer interrupt processing is started at a predetermined interval triggered by this timer interrupt signal.

[0122] Step S201 performs the timer interrupt start process. This timer interrupt start process includes temporarily saving the values ​​of each register of the CPU304 to the stack area.

[0123] In step S202, the WDT314 is periodically restarted (in this embodiment, once every 2ms, which is the period of the main control unit timer interrupt) to prevent a WDT interrupt from occurring (to prevent detection of a processing abnormality) if the count value of the WDT314 exceeds the initial setting value (32.8ms in this embodiment).

[0124] In step S203, an input port state update process is performed. In this input port state 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 detection signals is monitored, and the signals are stored in the signal state storage area of ​​the RAM 308, which is partitioned for each of the various sensors 318.

[0125] In step S204, various game processes are executed, and processing according to the interrupt status is performed. In step S2005, timer update processing is performed. More specifically, various timers are updated according to their respective time units.

[0126] In step S206, the command setting transmission process is performed, and the various commands that were prepared for transmission are sent to the first sub-control unit 400. The first sub-control unit 400 can determine the performance control in response to the change in game control in the main control unit 300 based on the command type included in the received output schedule information, and can also determine the content of the performance control based on the command data information included in the output schedule information.

[0127] In step S207, an external output signal setting process is performed. In this external output signal setting process, the game information stored in RAM 308 is output to an information input circuit 652, which is separate from the slot machine 100, via the information output circuit 334.

[0128] In step S208, device monitoring is performed. In this device monitoring process, the signal states of the various sensors 318 stored in the signal state storage area in step S203 are first read to check for errors related to abnormal medal insertion and abnormal medal dispensing. If an error is detected, error processing is executed (not shown). Furthermore, the settings of the medal selector 170 (a medal blocker operated by a solenoid installed inside the medal selector 170), various lamps 339, and various 7-segment (SEG) displays are set according to the current game state.

[0129] In step S209, the system monitors whether the low-voltage signal is on or off. If the low-voltage signal is on (i.e., power interruption is detected), the system proceeds to step S211; otherwise, it proceeds to step S210.

[0130] In step S210, various processes are performed to terminate the timer interrupt termination process. In this timer interrupt termination process, the values ​​of each register that were temporarily saved in step S2001 are set back to their original values. After that, the process returns to the main control unit main process shown in Figure 7.

[0131] On the other hand, in step S211, specific variables and a stack pointer necessary to return to the state at the time of power loss are saved as recovery data in a predetermined area of ​​RAM308, power loss processing such as initialization of input / output ports is performed, and then the system returns to the main processing of the main control unit shown in Figure 7.

[0132] <Processing of the first sub-control unit> Next, the processing of the first sub-control unit 400 will be explained using Figure 8. Figure 8(a) is a flowchart of the main processing executed by the CPU 404 of the first sub-control unit 400. Figure 8(b) is a flowchart of the command reception interrupt processing of the first sub-control unit 400. Figure 8(c) is a flowchart of the timer interrupt processing of the first sub-control unit 400.

[0133] First, the main processing of the first sub-control unit 400 will be explained using Figure 8(a).

[0134] When the power is turned on, the initialization process is first executed in step S301. This initialization process includes initial settings for input / output ports and initialization of the memory area in RAM 408. During this process, an area for storing internal winning information, which represents the result of an internal win, and an area for storing RT update information, which represents the game state, are each created in RAM 408.

[0135] In step S302, it is determined whether the timer variable is 10 or greater, and this process is repeated until the timer variable becomes 10. When the timer variable becomes 10 or greater, the process proceeds to step S3003. In step S303, 0 is assigned to the timer variable. In step S304, command processing, which is the processing corresponding to each command received from the main control unit 300, is executed.

[0136] In step S305, performance control processing is performed. Here, preparations for the performance are carried out according to the performance reservation information located in the performance reservation area provided in RAM 408. This preparation includes, for example, reading performance data from ROM 406 and, if the performance data needs to be updated, performing performance data update processing.

[0137] In step S306, sound control processing is performed based on the processing result of step S305. For example, if there is a command to the sound source IC 418 in the performance data read in step S305, this command 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, if there is a command to various lamps 420 in the performance data read in step S305, this command is output to the drive circuit 422.

[0138] In step S308, shutter control processing is performed based on the processing result of step S3005. For example, if there is a command for the shutter 163 in the performance data read in step S305, this command is output to the drive circuit 424. In step S309, information output processing is performed to set up the transmission of a command to the second sub-control unit 500 based on the processing result of step S305. For example, if there is a command to send to the second sub-control unit 500 in the performance data read in step S305, the settings are made to output this control command, and the process returns to step S302.

[0139] Next, the command reception interrupt processing of the first sub-control unit 400 will be explained using Figure 8(b). This command reception interrupt processing is performed 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 RAM 408.

[0140] Next, the timer interrupt processing of the first sub-control unit 400, executed by the CPU 404 of the first sub-control unit 400, will be explained using Figure 8(c). The first sub-control unit 400 is equipped with a hardware timer that generates a timer interrupt at a predetermined interval (once every 2ms in this embodiment), and triggers the timer interrupt processing at a predetermined interval based on this timer interrupt.

[0141] In step S501, 1 is added to the value in the timer variable storage area of ​​RAM 408, as explained in step S302 of the main processing of the first sub-control unit shown in Figure 8(a), and the result is stored in the original timer variable storage area. Therefore, in step S302, the timer variable value is determined to be 10 or greater every 20ms (2ms × 10). In step S502, commands are sent to the second sub-control unit 500 set in step S309, and processing is performed to update the random value for the performance.

[0142] <Processing of the second sub-control unit> Next, the processing of the second sub-control unit 500 will be explained using Figure 9. Figure 9(a) is a flowchart of the main processing executed by the CPU 504 of the second sub-control unit 500. Figure 9(b) is a flowchart of the command reception interrupt processing of the second sub-control unit 500. Figure 9(c) is a flowchart of the timer interrupt processing of the second sub-control unit 500. Figure 9(d) is a flowchart of the image control processing of the second sub-control unit 500.

[0143] First, in step S601 of Figure 9(a), various initial settings are performed. When the power is turned on, the initialization process is executed in step S601. This initialization process includes initial settings for input / output ports, initialization of the memory area in RAM 508, and initialization of the memory area in VRAM 536.

[0144] In step S602, it is determined whether the timer variable is 10 or greater, and this process is repeated until the timer variable becomes 10. When the timer variable becomes 10 or greater, the process proceeds to step S603. In step S4003, 0 is assigned to the timer variable. In step S604, command processing is performed. In command processing, the CPU 504 of the second sub-control unit 500 determines whether or not it has received a command from the CPU 404 of the first sub-control unit 400.

[0145] Step S605 performs performance control processing. Specifically, if there was a new command in step S604, the process corresponding to this command is performed. For example, the process of reading performance data for image control related to the background image from ROM 506 is executed. In addition, the process of reading other performance data from ROM 506 is performed, and if the performance data needs to be updated, the performance data update process is performed.

[0146] In step S606, image control processing (details described later) is performed based on the processing result of step S605. For example, if there is an image control command in the performance data read in step S605, the corresponding image control is performed. For example, image control related to the display image (notification image, background image) is executed. Once this image control processing is completed, the process returns to step S602.

[0147] Next, the command reception interrupt processing of the second sub-control unit 500 will be explained using Figure 9(b). This command reception interrupt processing is executed when the second sub-control unit 500 detects a strobe signal output by the first sub-control unit 400.

[0148] 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 RAM 508.

[0149] Next, using Figure 9(c), the timer interrupt processing of the second sub-control unit 500, which is executed by the CPU 504 of the second sub-control unit 500, will be explained. The second sub-control unit 500 is equipped with a hardware timer that generates a timer interrupt at a predetermined interval (once every 2ms in this embodiment), and triggers the timer interrupt processing at a predetermined interval based on this timer interrupt.

[0150] In step S801, 1 is added to the value in the timer variable storage area of ​​RAM 508, as explained in step S602 of the second sub-control unit main processing shown in Figure 9(a), and the result is stored in the original timer variable storage area. Therefore, in step S602, the timer variable value is determined to be 10 or greater every 20ms (2ms × 10). In step S802, processing such as updating the random value for the performance is performed.

[0151] Next, the image control process in step S606 of the main processing of the second sub-control unit 500 will be explained using Figure 9(d). This figure is a flowchart showing the flow of the image control process.

[0152] In step S901, an instruction is given to transfer image data. Here, the CPU 504 first swaps the drawing area designations of display area A and display area B of the VRAM 536. As a result, one frame of image stored in the display area not designated as a drawing area is displayed on the animation image display device 157. Next, the CPU 504 sets the ROM coordinates (source address of ROM 506), VRAM coordinates (destination address of VRAM 536), etc., in the attribute register of the VDP 534 based on the position information table, and then sets an instruction to start the transfer of image data from ROM 506 to VRAM 536. The VDP 534 transfers the image data from ROM 506 to VRAM 536 based on the instruction set in the attribute register. After that, the VDP 534 outputs a transfer completion interrupt signal to the CPU 504.

[0153] In step S902, it is determined whether or not a transfer completion interrupt signal has been received from VDP534. If a transfer completion interrupt signal has been received, the process proceeds to step S903; otherwise, the process waits for a transfer completion interrupt signal to be received.

[0154] In step S903, parameter settings are performed based on the production scenario configuration table and attribute data. Here, the CPU 504 instructs the VDP 534 to provide information about the image data that constitutes the display image (coordinate axes of VRAM 536, image size, VRAM coordinates (placement coordinates), transparency, etc.) in order to form a display image in display area A or B of VRAM 536 based on the image data transferred to VRAM 536 in step S901. The VDP 534 then performs parameter settings according to the attributes based on the instructions stored in the attribute register.

[0155] In step S904, a drawing instruction is issued. In this drawing instruction, CPU504 instructs VDP534 to start drawing the image. VDP534 starts drawing the image in the frame buffer according to the instruction from CPU504.

[0156] In step S905, it is determined whether or not a generation completion interrupt signal has been input from VDP534 based on the completion of image drawing. If a generation completion interrupt signal has been input, the process proceeds to step S906; otherwise, the process waits for a generation completion interrupt signal to be input.

[0157] In step S906, the process ends after incrementing (+1) the scene display counter, which is set in a predetermined area of ​​RAM 508 and counts how many scene images have been generated.

[0158] <Speaker mounting structure> Next, the speaker mounting structure in slot machine 100 will be described.

[0159] Figure 10 is a front view of the slot machine 100 with the front door 102 open. The main body 101 is a box-shaped structure enclosed by a top panel 261, a left side panel 260, a right side panel 260, a bottom panel 264, and a rear panel 242, with an opening at the front. Inside the main body 101, a main control board storage case 210, which houses the main control board, is positioned so as not to overlap with the ventilation opening 249 provided at the top of the rear panel 242. Below this main control board storage case 210, three reels 110 to 112 are arranged. To the side of the main control board storage case 210 and the reels 110 to 112, i.e., on the left side panel 260, a sub-control board storage case 220, which houses a sub-control board, is provided. Furthermore, an external centralized terminal board 248, which is connected to the main control board and outputs information from the slot machine 100 to an external device, is mounted on the right-hand side panel 260.

[0160] 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 has 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).

[0161] 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). 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.

[0162] 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) 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 this 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.

[0163] <Speaker mounting structure / Configuration of speaker unit> Next, the configuration of the speaker unit 600 will be described using FIG. 11. FIG. 11 is an exploded perspective view of the speaker unit 600.

[0164] As described using FIG. 10, the speaker unit 600 is screwed and installed on 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 - sound 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.

[0165] <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 against which the front - side peripheral portion of the frame 612 of the speaker 610 abuts.

[0166] 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 sound output from the speaker 610 is output to the outside of the slot machine 100 through these sound holes 161.

[0167] <Speaker mounting structure / Speaker, back cover> Next, the speaker 610 and the back cover 620 constituting the speaker unit 600 will be described in detail using FIGS. 12 and 13.

[0168] FIG. 12(a) is a side view of the back cover 620, FIG. 12(b) is a top view of the back cover 620. Also, FIG. 12(c) is a side view of the speaker 610, 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 along the A - A line of the speaker unit 600 shown in FIG. 13(a).

[0169] <Speaker mounting structure / Speaker> The speaker 610 (first component) is a cone-type dynamic speaker, and as shown in Figures 12(c) and 13(b), it generally consists of a voice coil and a magnet, an electromagnetic circuit 611 that vibrates a diaphragm 613 (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 that fixes the diaphragm 613 so that it can vibrate.

[0170] The frame 612 is a cylindrical metal ring frame that widens slightly towards the front, and multiple openings 615 (see Figure 11) are formed along the circumference on its side to allow air to escape from around the diaphragm 613. That is, the side of the frame 612 has multiple openings 615 formed along the circumference, and support columns 612a are formed between the openings 615 along the front-to-back direction. The diaphragm 613 is formed in a cone shape that opens towards the front, using a flexible material such as paper.

[0171] As shown in Figure 12(d), dedicated screw holes 616a (first through holes) for screwing the speaker 610 to the front door 102 are formed in the upper left and lower right corners of the flange 614. In addition, shared screw holes 616b (second through holes) for screwing the speaker 610 and the rear cover 620 to the front door 102 are formed in the lower left and upper right corners of the flange 614.

[0172] In this example, two dedicated screw holes 616a (first through holes) are positioned diagonally at the upper left and lower right corners of the outer edge of the flange 614 (at the vertices of the diagonal ends), and two shared screw holes 616b (second through holes) are positioned diagonally at the lower left and upper right corners of the outer edge of the flange 614 (at the vertices of the diagonal ends). As a result, the dedicated screw holes 616a (first through holes) and the shared screw holes 616b (second through holes) are alternately arranged at a predetermined interval in the outer circumference direction of the flange 614.

[0173] In this example, when fixing the speaker 610 (first component) to the front door 102 (base) using the dedicated screw hole 616a (first through hole) for positioning, or when removing only the rear cover 620 (second component) from the front door 102 (base), the speaker 610 (first component) can be stably fixed, thereby improving safety and workability.

[0174] The arrangement and number 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 placed on the outer edge of the flange 614 at either the upper left corner or the lower right corner, and one shared screw hole 616b (second through-hole) may be placed on the outer edge of the flange 614 at either the lower left corner or the upper right corner. Alternatively, three or more dedicated screw holes 616a (first through-holes) may be placed on the outer edge of the flange 614, and three or more shared screw holes 616b (second through-holes) may be placed on the outer edge of the flange 614. The number of dedicated screw holes 616a (first through-holes) and shared screw holes 616b (second through-holes) do not have to be the same.

[0175] The flange 614 also functions as a member that supports the diaphragm 613 so that it can vibrate. The outer edge 613a of the diaphragm 613 (see Figure 13(b)), which appears on the back side of the flange 614 through the opening in the flange 614, is fixed to the back side of the flange 614. The thickness of the flange 614 is designed to be greater than the maximum vibration amplitude of the diaphragm 613 so as not to hinder the vibration of the diaphragm 613.

[0176] In this example, the rear cover 620 is positioned on the back of the speaker 610. When the rear cover 620 is fixed to the speaker base 630 of the front door 102, the minimum distance between the rear cover 620 and the front door 102 is also designed to be longer than the thickness of the flange 614 so as not to hinder the vibration of the diaphragm 613.

[0177] <Speaker mounting structure / rear cover> The rear cover 620 (second component) is a resin component that houses most of the speaker 610 inside. More specifically, the rear cover 620 has a circular opening 621 on the rear side that exposes the rear end of the speaker 610 (part of the electromagnetic circuit 611), and a stepped cylindrical side wall portion 622 that widens slightly toward the front.

[0178] Furthermore, as shown in Figure 12(b), the rear cover 620 is provided with two protruding pieces 623a and two protruding pieces 623b with screw holes that protrude circumferentially outward from one front end of the side wall portion 622. The protruding pieces 623b with screw holes, which are positioned diagonally (at the vertices of the diagonal ends) at the lower left corner and upper right corner, each have screw holes 624 (third through holes) formed therein for integrating the speaker 610 and the rear cover 620 and screwing them to the front door 102.

[0179] With this configuration, the speaker unit 600 is integrated and fixed to the back surface of the front door 102 by aligning the shared screw hole 616b (second through hole) in the flange 614 of the speaker 610 and the screw hole 624 (third through hole) in the screw-hole-equipped protruding piece 623b of the rear cover 620 with the holes in the mounting sleeve 632 of the speaker base 630 and fastening them with screws (fixing means). The method of mounting the speaker unit 600 will be described later.

[0180] Furthermore, the protruding pieces 623a, positioned diagonally (at the vertices of the diagonal ends) at the upper left and lower right corners of the rear cover 620, have a thicker shape than the protruding piece 623b with a screw hole, as shown in the side view of Figure 12(a). Inside these pieces, a screw head accommodating space 623a1 is formed, capable of accommodating the head of a screw (fixing means).

[0181] 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 it with a screw (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 with respect to the back surface of the speaker 610, the protruding piece 623a of the rear cover 620 does not interfere with the screw (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.

[0182] 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, so the attachment operation of the rear cover 620 (second member) can be facilitated.

[0183] A box-shaped space 622S for housing the lead wire connected to the electromagnetic circuit 611 and guiding the lead wire outside 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 releasing the air around the diaphragm 613, are formed at predetermined intervals in the circumferential direction on the side wall portion 622.

[0184] <Speaker mounting structure / Correct mounting method> Next, the correct mounting method of the speaker unit 600 will be described using Fig. 14(a).

[0185] Fig. 14(a) is a diagram schematically showing an example of the correct mounting method of the speaker unit 600.

[0186] 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).

[0187] More specifically, as shown in Figure 14(a-1), the speaker 610 is attached to the speaker base 630 by aligning the two dedicated screw holes 616a (first through holes) in the flange 614 of the speaker 610 with the holes in the mounting sleeve 632 of the speaker base 630 (base) and fastening them with screws 634 (fixing means).

[0188] Next, the rear cover 620 is positioned relative to the speaker base 630 (base) so that it covers the back of the speaker 610. A screw head housing space 623a1 is formed in the protruding piece 623a of the rear cover 620, so that 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. As a result, the rear cover 620 can be reliably positioned on the back of the speaker 610, as shown in Figure 14(a-2).

[0189] Finally, with the rear cover 620 positioned on the back of the speaker 610, the screw holes 624 (third through holes) in the screw-hole-equipped protruding piece 623b of the rear cover 620 are aligned with the two shared 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 base 630 (base), and fastened with screws 634 (fixing means) to attach the rear cover 620 to the speaker base 630 (base). As a result, the speaker unit 600 is integrated and fixed to the back of the front door 102.

[0190] In this example, when fixing the speaker 610 (first component) and the rear cover 620 (second component) to the speaker base 630 (base) with screws (fixing means), it is possible to fix them at once with a single screw 634 (fixing means) through the common screw hole 616b (second through hole) of the speaker 610 (first component) and the screw hole 624 (third through hole) of the rear cover 620 (second component), thus simplifying the component installation work compared to conventional methods. Furthermore, since the speaker 610 (first component) is fixed and positioned to the base using the dedicated screw hole 616a (first through hole), it is possible to fix the rear cover 620 (second component) to the speaker base 630 (base), eliminating the need to position the two components simultaneously and improving work efficiency.

[0191] Furthermore, when the speaker unit 600 is properly installed, as shown in Figure 14(a-2), the protruding piece 623a of the rear cover 620 (second component) covers the dedicated screw hole 616a (first through hole) in the speaker 610 (first component). This allows for visual confirmation that the dedicated screw hole 616a (first through hole) does not need to be used when fixing the rear cover 620 (second component), thus ensuring reliable installation of the components.

[0192] Furthermore, the rear cover 620 (second component) has a point-symmetrical shape and can be attached to the speaker base 630 (base) even when rotated 180 degrees, thus simplifying the installation of the rear cover 620 (second component).

[0193] <Speaker mounting structure / Incorrect mounting method> Next, we will explain the incorrect installation method of the speaker unit 600 using Figure 14(b).

[0194] Figure 14(b) schematically shows an example of an incorrect installation method for the speaker unit 600.

[0195] The example shown in Figure 14(b-1) illustrates a case where, instead of using the two dedicated screw holes 616a (first through-holes) in the flange 614 of the speaker 610, the two shared screw holes 616b (second through-holes) were mistakenly aligned with the holes in the mounting sleeve 632 of the speaker base 630 (base), and fastened with screws 634 (fixing means), thereby attaching only the speaker 610 to the speaker base 630 (base).

[0196] In this example, as shown in Figure 14(b-2), when the rear cover 620 is positioned relative to the speaker base 630 (base) so as to cover the back of the speaker 610 with the rear cover 620, the bottom of the screw-hole projection 623b of the rear cover 620 interferes with the screw 634 (fixing means) that has been mistakenly installed in the common screw hole 616b (second through hole) of the speaker 610. As a result, the rear cover 620 cannot be positioned on the back of the speaker 610, and therefore the rear cover 620 cannot be attached.

[0197] In this example, it is easy to recognize that the installation method of speaker 610 (first component) is incorrect, and thus work errors can be prevented.

[0198] Figures 15(a) and 15(b) schematically illustrate another example of an incorrect installation method for the speaker unit 600.

[0199] The example shown in Figure 15(a) is an example where the speaker 610 (first component) and the rear cover 620 (second component) were installed in the wrong order, with the rear cover 620 (second component) being installed first on the speaker base 630 (base).

[0200] Since the speaker 610 (first component) cannot be housed in the rear cover 620 (second component) when it is attached to the speaker base 630 (base), it is easy to recognize that the speaker 610 (first component) is installed incorrectly, thus preventing work errors.

[0201] The example shown in Figure 15(b) is an instance where the rear cover 620 (second component) was mistakenly rotated 90 degrees in an attempt to position it relative to the speaker base 630 (base).

[0202] The rear cover 620 (second component) has a point-symmetric shape and can be attached to the speaker base 630 (base) even when rotated 180 degrees. However, because it does not have a line-symmetric shape, it cannot be positioned relative to the speaker base 630 (base) when rotated 90 degrees.

[0203] Furthermore, because the position of the box-shaped space 622S in the rear cover 620 is shifted by 90 degrees, the speaker 610 cannot be housed in the rear cover 620. Therefore, it is easy to recognize that the installation method of the rear cover 620 (second component) is incorrect, and work errors can be prevented.

[0204] <Speaker mounting structure / summary> As described above, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) is a gaming machine comprising: a first member (for example, the speaker 610 shown in Figures 11 and 14) that can be fixed to a base (for example, the speaker base portion 630 of the front door 102 shown in Figure 11); and a second member (for example, the rear cover 620 shown in Figures 11 and 14) that can cover at least a part of the first member, wherein the first member has a plurality of through holes for fixing the first member to the base, and the plurality of through holes is one or more first through holes (for example The game machine is characterized in that it includes a dedicated screw hole 616a shown in Figure 12(d) and one or more second through holes (for example, a common screw hole 616b shown in Figure 12(d)) different from the first through hole, the second member has one or more through holes (hereinafter referred to as "third through hole"; for example, a screw hole 624 shown in Figures 11 and 14) for fixing the second member to the base, the first member is fixed to the base using the first through hole, and the second member is fixed to the base using the third through hole and the second through hole.

[0205] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base with a fixing means, it is possible to fix them at once with a single fixing means through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods. Furthermore, since the second member can be fixed to the base while the first member is fixed and positioned using the first through-hole, it is not necessary to position the two members simultaneously, thereby improving work efficiency.

[0206] Furthermore, the "first member" and "second member" according to the present invention are not limited to a speaker and a back cover, but may also be, for example, a circuit board and a circuit board 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 a 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".

[0207] Furthermore, if the first member is fixed to the base using the first through-hole, and then 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.

[0208] With this configuration, it is possible to visually confirm that it is not necessary to use the first through-hole when fixing the second component, and the component installation work can be carried out reliably.

[0209] Furthermore, the first member may be provided with a plurality of first through holes and a plurality of second through holes, and the plurality of first through holes and the plurality of second through holes may be arranged alternately in the outer peripheral direction of the first member.

[0210] With this configuration, when fixing the first component to the base using the first through-hole for positioning, or when removing only the second component from the base, the first component can be securely fixed, thereby improving safety and work efficiency.

[0211] Furthermore, the plurality of first through holes and the plurality of second through holes may be arranged alternately in the outer peripheral direction of the first member, and the plurality of first through holes may be located diagonally opposite each other in the first member, and the plurality of second through holes may be located diagonally opposite each other in the first member.

[0212] Furthermore, after the first member is fixed to the base through the second through-hole with a fixing means (for example, the screw 634 shown in Figure 14(b)), if the second member is positioned to be fixed to the base, the third through-hole of the second member may interfere with the fixing means.

[0213] With this configuration, it is easy to recognize if the first component is installed incorrectly, thus preventing work errors.

[0214] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) is a gaming machine comprising: a first member (for example, the speaker 610 shown in Figures 11 and 14) that can be fixed to a base (for example, the speaker base portion 630 of the front door 102 shown in Figure 11); and a second member (for example, the rear cover 620 shown in Figures 11 and 14) that can cover at least a part of the first member, wherein the first member has a plurality of first through holes and a plurality of second through holes different from the first through holes; the second member has a plurality of third through holes; the first through holes are used when fixing the first member and the first member of the second member to the base; the second through holes and the third through holes are 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 circumference of the first member.

[0215] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 610 shown in Figures 11 and 14) that can be fixed to a base (for example, the speaker base portion 630 of the front door 102 shown in Figure 11), and a second member (for example, the rear cover 620 shown in Figures 11 and 14) that can cover at least a part of the first member, wherein the first member has a plurality of first through holes and a plurality of second through holes different from the first through holes, the second member has a plurality of third through holes, and the first through holes are connected to the first member and the second member. The game machine is characterized in that the first member is a through hole used to fix the first member to the base, the second and third through holes are used to fix 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 arranged alternately on the outer circumference of the first member, a rectangle is formed when the plurality of first through holes and the second through holes adjacent to the plurality of first through holes are connected by straight lines, and the plurality of first through holes are arranged on the diagonal of the rectangle (the vertices at the ends of the diagonals).

[0216] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) is a gaming machine comprising: a first member (for example, the speaker 610 shown in Figures 11 and 14) that can be fixed to a base (for example, the speaker base portion 630 of the front door 102 shown in Figure 11); and a second member (for example, the rear cover 620 shown in Figures 11 and 14) that can cover at least a part of the first member, wherein the first member has a plurality of first through holes and a plurality of second through holes different from the first through holes, and the second member has a plurality of third through holes The gaming machine is characterized by having through holes, the first through hole being used to fix the first member of the first member and the second member to the base, the second through hole and the third through hole being used to fix both the first member and the second member to the base, the plurality of first through holes and the plurality of second through holes being alternately arranged on the outer circumference of the first member, and the base comprising a frame portion formed to match the outer shape of the first member.

[0217] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base with a fixing means, it is possible to fix them at once with a single fixing means through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods. Furthermore, since the second member can be fixed to the base while the first member is fixed and positioned using the first through-hole, it is not necessary to position the two members simultaneously, thereby improving work efficiency.

[0218] <Speaker mounting structure (modified example 1) / Speaker unit configuration> Next, the configuration of the speaker unit 700 according to Modification 1 will be described using Figure 16. Figure 16 is an exploded perspective view of the speaker unit 700 according to Modification 1.

[0219] As shown in Figure 16, the speaker unit 700 according to Modification 1 consists of a speaker 710 (first component) for low-frequency output having a large diaphragm and a rear cover 720 (second component) that covers the rear side of the speaker 710, and is attached to a speaker base 730 (base) formed on the back of the front door 102 of the slot machine.

[0220] <Speaker mounting structure / speaker base> The speaker base 730 is comprised of 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 for screwing the speaker 710 and rear cover 720 to the front door 102, and a disc-shaped sound hole plate 734 that is attached to the inside of the frame support portion 731. The detailed configuration of the speaker base 730 will be described later with reference to Figure 19.

[0221] <Speaker mounting structure (modified example 1) / Speaker, rear cover> Next, using Figures 17 and 18, we will explain in detail the speaker 710 and rear cover 720 that constitute the speaker unit 700 according to Modified Example 1.

[0222] Figure 17(a) is a side view of the rear cover 720, and Figure 17(b) is a top view of the rear cover 720. Figure 17(c) is a side view of the speaker 710, and Figure 17(d) is a top view of the speaker 710. Figure 18(a) is a top view of the speaker unit 700, and Figure 18(b) is a cross-sectional view of the speaker unit 700 shown in Figure 18(a) along line BB.

[0223] <Speaker mounting structure (modified example 1) / Speaker> The speaker 710 (first component) is a cone-type dynamic speaker, and as shown in Figures 17(c) and 18(b), it is generally composed of a voice coil and a magnet, and comprises an electromagnetic circuit 711 (electrical component) that vibrates a diaphragm 713 (described later) in response to an electrical signal, a frame 712 that supports the electromagnetic circuit 711, a diaphragm 713 that vibrates to generate sound, a flange 714 to which the diaphragm 713 is fixed so as to be able to vibrate, a pair of lead terminals 716 arranged on the right and left sides of the flange 714 in a top view, and lead wires (wiring) 717 that are detachably connected to the lead terminals 716.

[0224] The frame 712 is a cylindrical metal ring frame that widens slightly towards the front, and multiple openings 715 (see Figure 16) are formed along the circumference on its side to allow air to escape from around the diaphragm 713. That is, the side of the frame 712 has multiple openings 715 formed along the circumference, and between the openings 715, support columns 712a (see Figure 16) are formed along the front-to-back direction. The diaphragm 713 is formed in a cone shape that opens towards the front, using a flexible material such as paper.

[0225] As shown in Figure 17(d), dedicated screw holes 716a (first through holes) for screwing the speaker 710 to the speaker base 730 are formed at the upper left and lower right corners of the outer end of the flange 714. In addition, shared screw holes 716b (second through holes) for screwing the speaker 710 and the rear cover 720 to the speaker base 730 are formed at the lower left and upper right corners of the outer end of the flange 714.

[0226] In this example, two dedicated screw holes 716a (first through holes) are positioned diagonally at the upper left and lower right corners of the outer edge of the flange 714 (at the vertices of the diagonal ends), and two shared screw holes 716b (second through holes) are positioned diagonally at the lower left and upper right corners of the outer edge of the flange 714 (at the vertices of the diagonal ends). As a result, the dedicated screw holes 716a (first through holes) and the shared screw holes 716b (second through holes) are alternately arranged along the outer edge of the flange 714 at predetermined intervals in the circumferential direction.

[0227] In other words, as shown in Figure 17(d), when a virtual straight line VL is drawn connecting a plurality of dedicated screw holes 716a (first through holes) and the shared screw holes 716b (second through holes) adjacent to these plurality of dedicated screw holes 716a (first through holes), a virtual quadrilateral VQ is formed. The plurality of dedicated screw holes 716a (first through holes) are arranged on the diagonal of the virtual quadrilateral VQ (at the vertices at the ends of the diagonals), and the plurality of shared screw holes 716b (second through holes) are arranged on the diagonal of the virtual quadrilateral VQ (at the vertices at the ends of the diagonals).

[0228] Furthermore, focusing on the distance between the dedicated screw hole 716a (first through hole) and the shared screw hole 716b (second through hole), as shown in Figure 17(d), the shortest distance L1 from the dedicated screw hole 716a (first through hole) located in the upper left corner to one of the shared screw holes 716b (second through holes) (for example, the shared screw hole 716b located in the upper right corner) and the shortest distance L2 from the dedicated screw hole 716a (first through hole) located in the upper left corner to a different through hole among the second through holes of the shared screw hole 716b (second through hole) (for example, the shared screw hole 716b located in the lower left corner) are approximately the same.

[0229] In this example, when fixing the speaker 710 (first component) to the speaker base 730 (base) of the front door 102 using the dedicated screw hole 716a (first through hole) for positioning, or when removing only the rear cover 720 (second component) from the speaker base 730 (base), the speaker 710 (first component) can be stably fixed, thereby improving safety and workability.

[0230] <Speaker mounting structure (modified version 1) / rear cover> Next, we will explain the rear cover 720 (the second component) in detail.

[0231] The rear cover 720 (second component) is a colored, transparent resin component capable of housing the speaker 710 (first component) inside, and is made of a material that allows the speaker 710 (first component) to be visible from the outside when it is housed inside.

[0232] In this example, at least a portion of the speaker 710 (first component) can be seen through the rear cover 720 (second component), allowing for visual confirmation of the fixing position of the speaker 710 (first component) relative to the speaker base 730 (base), as well as the positional relationship between the speaker 710 (first component) and the rear cover 720 (second component), thereby improving convenience during component installation.

[0233] Furthermore, the back cover 720 (second component) may be any transparent component, 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, etc.

[0234] As shown in Figures 17(a) and (b), the rear cover 720 has a circular cover portion 721 on the rear side that covers the rear end of the speaker 710, and a cylindrical side wall portion 722 that widens slightly toward the rear, with this cover portion 721 as the base.

[0235] The cover portion 721 has multiple rectangular ventilation holes 725 formed therein, which are openings for releasing air around the electromagnetic circuit 711 of the speaker 710. In addition, a predetermined marking 726 (in this example, part number and material) is applied to the upper part when viewed from above. The form of the predetermined marking 726 is not particularly limited, but in this example, a part number marking representing the part number of the rear cover 720 (in this example, the string "SPxxxx") and a material marking representing the material of the rear cover 720 (in this example, the string "PC") are engraved on the surface of the cover portion 721.

[0236] In this example, since the rear cover 720 is marked with a predetermined indicator 726, the correct orientation (mounting direction) of the rear cover 720 can be easily identified by the orientation of this indicator 726, thereby improving convenience when mounting the rear cover 720.

[0237] Furthermore, as shown in Figure 17(b), the rear cover 720 is provided with two protruding pieces 723a and two protruding pieces 723b with screw holes that protrude outward from the outer edge of the side wall portion 722.

[0238] In this example, two protruding pieces 723a are positioned diagonally at the upper left and lower right corners of the outer edge of the side wall portion 722 (at the vertices of the ends of the diagonals), and two protruding pieces 723b with screw holes are positioned diagonally at the lower left and upper right corners of the outer edge of the side wall portion 722 (at the vertices of the ends of the diagonals). As a result, the protruding pieces 723a and the protruding pieces 723b with screw holes are alternately arranged along the outer edge of the side wall portion 722 at predetermined intervals in the circumferential direction.

[0239] In other words, as shown in Figure 17(b), when the vertices of the multiple protruding pieces 723a and the screw-holeed protruding pieces 723b adjacent to these multiple protruding pieces 723a are connected by a virtual straight line VL2, a virtual quadrilateral VQ2 is formed. The multiple protruding pieces 723a are arranged on the diagonal of the virtual quadrilateral VQ2 (the vertices at the ends of the diagonals), and the multiple screw-holeed protruding pieces 723b are arranged on the diagonal of the virtual quadrilateral VQ2 (the vertices at the ends of the diagonals).

[0240] The protruding pieces 723b with screw holes, positioned diagonally at the lower left and upper right corners (at the vertices of the diagonal ends), each have screw holes 724 (third through holes) for screwing the speaker 710 and rear cover 720 together to the speaker base 730. These holes are formed slightly off-center from the center of the protruding piece 723b, towards the cover 721 (towards the center of the rear cover 720).

[0241] With this configuration, the speaker unit 700 is integrated and fixed to the speaker base 730 (base) by fastening the shared screw hole 716b (second through hole) of the speaker 710 and the screw hole 724 (third through hole) of the rear cover 720 to the speaker base 730 (base) with screws 740 (fixing means; see Figure 16). The method of mounting the speaker unit 700 will be described later.

[0242] Around the screw hole 724 (third through hole) in the screw-hole projection 723b, a thin screw hole identification recess 724a is formed, which is an annular recess having a larger outer diameter than the screw hole 724. Due to this screw hole identification recess 724a formed around the screw hole 724, the thickness of the back cover 720 around the screw hole 724 (third through hole) is made thinner than the thickness of other parts of the back cover 720.

[0243] In this example, when the rear cover 720 (second member) is positioned, the presence of the screw-hole projection 723b makes it easy to recognize the fixing position of the rear cover 720 (second member) (screw hole 724 (third through hole)), and the screw-hole projection 723b can also function as reinforcement for the thinly formed portion around the screw hole 724 (third through hole) (screw hole identification recess 724a).

[0244] Furthermore, the side wall portion 722 has a screw hole identification groove 722a formed therein, which communicates with the screw hole identification recess 724a and is a straight groove extending from the bottom to the top of the side wall portion 722.

[0245] In other words, in this example, the screw hole 724 (third through hole) is made identifiable by the formation of a screw hole identification recess 724a and a screw hole identification groove 722a around the screw hole 724 (third through hole).

[0246] In this example, at least one of the dedicated screw hole 716a (first through hole), shared screw hole 716b (second through hole), and screw hole 724 (third through hole) (in this example, screw hole 724 (third through hole)) is configured to be identifiable. Therefore, it is easy to determine whether each through hole is used to fix only the first member to the base, or to fix both the first and second members to the base, thereby improving the efficiency of the member installation work. In addition, the type of through hole can be used as a clue to easily identify the correct orientation (installation direction) of the rear cover 720, improving convenience when installing the rear cover 720, etc.

[0247] In this example, a configuration was shown in which a screw hole identification recess 724a and a screw hole identification groove 722a are formed near the screw hole 724 (third through hole) to make the screw hole 724 (third through hole) identifiable. However, the present invention is not limited to this, and 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 that can identify the screw hole 724 (third through hole) may be attached near the screw hole 724 (third through hole), or a marking, printing, engraving, etc. that can identify the screw hole 724 (third through hole) may be applied.

[0248] Furthermore, parts other than the rear cover 720 (second component) (for example, the speaker base 730 (base) or the speaker 710 (first component)) may be provided with a portion that allows identification of the screw hole 724 (third through hole), or a sticker or the like that can be attached to identify the screw hole 724 (third through hole), or a marking, printing, or engraving that can be applied to identify the screw hole 724 (third through hole).

[0249] Furthermore, while an example configuration has been given in which the screw hole 724 (third through hole) of the rear cover 720 can be identified, an alternative (or additional) configuration may be adopted in which the dedicated screw hole 716a (first through hole) of the speaker 710 (first component) and / or the shared screw hole 716b (second through hole) can be identified.

[0250] Therefore, for example, a portion is formed on the mounting sleeve 732 of the speaker base 730 (base) in which 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 identifiable, or a seal or the like is affixed in which at least one through hole is identifiable, or a marking, printing, engraving, etc. is applied in which at least one through hole is identifiable, or the speaker 710 (first component) The lunge 714 may have a portion formed to identify the dedicated screw hole 716a (first through hole) and / or the common screw hole 716b (second through hole), or a seal or the like that can identify the dedicated screw hole 716a (first through hole) and / or the common screw hole 716b (second through hole), or a marking, printing, engraving, etc. that can identify the dedicated screw hole 716a (first through hole) and / or the common screw hole 716b (second through hole).

[0251] Alternatively, the shape of the screw-hole-equipped protruding piece 723b of the rear cover 720 may be made different from the shape of the protruding piece 723a so that it can be identified that the through hole formed in the screw-hole-equipped protruding piece 723b is a through hole used when fixing both the speaker 710 (first component) and the rear cover 720 (second component) to the speaker base 730 (base). Or, conversely, the shape of the screw-hole-equipped protruding piece 723a of the rear cover 720 may be made different from the shape of the screw-hole-equipped protruding piece 723b so that it can be identified that the through hole of the speaker 710 covered by the protruding piece 723a is a through hole used when fixing only the speaker 710 (first component) to the speaker base 730 (base).

[0252] With this configuration, the function of the through-hole can be visually identified based on the shape of the protruding piece of the rear cover 720, thereby improving work efficiency.

[0253] Furthermore, the protruding pieces 723a positioned diagonally (at the vertices of the diagonal ends) at the upper left and lower right corners of the rear cover 720 are, as shown in the side view of Figure 17(a), parts with a two-tiered, thicker step shape, which are higher in height from the bottom surface of the rear cover 720 than the protruding piece 723b with a screw hole. Inside the protruding piece 723a, a screw housing space 723a1 is formed, which is large enough to accommodate a portion (head) of the screw 740.

[0254] With this configuration, even if the speaker 710 is fixed to the speaker base 730 by fastening the speaker 710's dedicated screw hole 716a (first through hole) to the speaker base 730 with a screw 740, and then the rear cover 720 is positioned relative to the back of the speaker 710, the head of the screw 740 attached to the speaker 710's dedicated screw hole 716a is housed in the screw housing space 723a1. As a result, the screw 740 does not interfere with the rear cover 720, and the rear cover 720 can be securely attached to the back of the speaker 710.

[0255] Furthermore, the rear cover 720 (second component) has a point-symmetrical shape and can be attached to the speaker base 730 (base) even when rotated 180 degrees, thus simplifying the installation of the rear cover 720 (second component).

[0256] As mentioned above, the rear cover 720 has a predetermined marking 726. Therefore, when attaching the rear cover 720 to the speaker base 730, it is preferable to attach it in the correct orientation so that the side with the predetermined marking 726 is facing upwards and the predetermined marking 726 is easily visible. However, even if the rear cover 720 is rotated 180 degrees from its correct orientation, the orientation of the predetermined marking 726 will be reversed, but it will still be possible to attach it to the speaker base 730.

[0257] As shown in Figure 17(b), box-shaped spaces 722S (spaces) are formed protruding from the right and left outer edges of the rear cover 720 in a top view, respectively, for housing a pair of lead terminals 716 and for leading the lead wires 717 to the outside of the speaker unit 700.

[0258] As shown in Figures 17(a) and (b), this box-shaped space 722S (space) is composed of a first space 722S1, which is a vertically elongated rectangular parallelepiped shape that extends from the upper part of the side wall 722 to the vicinity of the lower part of the side wall 722, and a second space 722S2, which is a horizontally elongated rectangular parallelepiped shape that communicates with the first space 722S1 and has a width slightly larger than the width of the first space 722S1. The first space 722S1 and the second space 722S2 are positioned radially outward from the screw hole 724 (third through hole) in the back cover 720 (second member).

[0259] With this configuration, when the speaker 710 (first component) and the rear cover 720 (second component) are fixed to the speaker base 730 (base), a space is formed between the speaker 710 (first component) and the rear cover 720 (second component), and as shown in Figure 18(b), the speaker 710's lead wires 717 (wiring) can be pulled out to the outside of the speaker 710 (first component) and the rear cover 720 (second component) through this space.

[0260] In this example, even when a portion of the speaker 710 (first component) is covered by the rear cover 720 (second component), the lead wires 717 (wiring) of the speaker 710 (first component) can be brought out to the outside, thereby increasing the design flexibility.

[0261] Furthermore, when fixing the rear cover 720 (second component) to the speaker base 730 (base), a wider area can be provided outside the contact points (around the through-hole) between the speaker base 730 (base) and the rear cover 720 (second component), thereby preventing situations where wiring gets caught between the speaker base 730 (base) and the rear cover 720 (second component).

[0262] Furthermore, the horizontally elongated rectangular parallelepiped second space 722S2 provides a wide area for pulling out wiring from between the rear cover 720 (second component) and the speaker base 730 (base), while the vertically elongated rectangular parallelepiped first space 722S1 partially restricts the area for guiding the wiring, allowing the speaker 710 wiring to be smoothly guided to the second space 722S2. Additionally, it prevents the wiring from bunching up near the through-hole when the rear cover 720 (second component) is fixed, thus preventing it from interfering with the installation work.

[0263] In this example, two box-shaped spaces (spaces) 722S are shown in the rear cover 720. However, the number of box-shaped spaces (spaces) 722S is not limited to this example. If the speaker 710 has only one lead terminal, only one box-shaped space (space) 722S capable of accommodating this lead terminal may be formed. Furthermore, a notch or recess for guiding the lead wire to the outside may be formed below the box-shaped space (space) 722S.

[0264] <Speaker mounting structure (modified example 1) / Speaker base section> Next, we will explain the speaker base 730 in detail using Figure 19.

[0265] Figures 19(a) to (d) show an example of a speaker unit 700 mounting method in chronological order, with Figure 19(a) showing the speaker base 730 with the sound hole plate 734 removed.

[0266] As explained with reference to Figure 16, the speaker base 730 is composed of 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 that is attached to the inside of the frame support portion 731.

[0267] As shown in Figure 19(a), the sound hole plate 734 has multiple circular sound holes 734a formed therein for outputting sound from the speaker 710, and four locking portions 734b are formed along the outer edge of the sound hole plate 734 at predetermined intervals along the circumferential direction, which can be locked to the sound hole plate locking portion 736 of the frame support portion 731.

[0268] In contrast, four sound hole plate locking portions 736 are formed on the inside of the frame support portion 731 at predetermined intervals along the inner circumference of the frame support portion 731, to which the locking portion 734b of the sound hole plate 734 can be locked. Furthermore, the height of the frame support portion 731 (height from the back of the front door 102) is designed to be higher than the maximum vibration amplitude of the diaphragm 713 of the speaker 710 so as not to hinder the vibration of the diaphragm 713.

[0269] The tone 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 locked into the four tone hole plate locking portions 736, respectively, thereby fixing it inside the frame support portion 731 as shown in Figure 19(b).

[0270] Of the four mounting sleeves 732, the first mounting sleeve 732a, located in the upper left and lower right corners when viewed from above, is a mounting sleeve through which the dedicated screw hole 716a (first through hole) of the speaker 710 is fastened by a screw 740, as shown in Figure 19(c).

[0271] On the other hand, of the four mounting sleeves 732, the second mounting sleeve 732b, which is located in the lower left corner and upper right corner when viewed from above, is a mounting sleeve that fastens the common screw hole 716b (second through hole) of the speaker 710 and the screw hole 724 (third through hole) of the rear cover 720 with a screw 740, as shown in Figure 19(d).

[0272] On the outside of the frame support portion 731, a rectangular first rectangular boss 737a is erected so as to surround the first mounting sleeve 732a, and a rectangular second rectangular boss 737b is erected so as to surround the second mounting sleeve 732b. In addition, arc-shaped through-hole identification bosses 738 are erected near the first mounting sleeves 732a, which are located at the upper left and lower right corners when viewed from above.

[0273] This through-hole identification boss 738 is a boss erected to identify that two of the four mounting sleeves 732a are mounting sleeves that are fastened to the dedicated screw holes 716a (first through-holes) of the speaker 710, and is not formed near the second mounting sleeve 732b.

[0274] In this example, since through-hole identification bosses 738 are erected near two of the four mounting sleeves 732a, it is possible to attach the speaker 710 and rear cover 720 to the speaker base 730 in the correct orientation using these through-hole identification bosses 738 as a guide, thereby preventing work errors and improving work efficiency.

[0275] Furthermore, arc-shaped mounting direction identification bosses 739 are erected between the first rectangular boss 737a located in the upper left corner when viewed from above and the second rectangular boss 737b located in the lower left corner when viewed from above, and between the second rectangular boss 737b located in the upper right corner when viewed from above and the first rectangular boss 737a located in the lower right corner when viewed from above.

[0276] This mounting direction identification boss 739 is a boss erected to allow identification of the mounting direction of the speaker 710 and the rear cover 720, and is not formed between the first rectangular boss 737a located in the upper left corner when viewed from above and the second rectangular boss 737b located in the upper right corner when viewed from above, nor between the second rectangular boss 737b located in the lower left corner when viewed from above and the first rectangular boss 737a located in the lower right corner when viewed from above.

[0277] In this example, since mounting direction identification bosses 739 are provided that allow for identification of the mounting direction of the speaker 710 and the rear cover 720, when attaching the speaker 710 to the speaker base 730, the speaker 710 can be attached to the speaker base 730 in the correct orientation by aligning the position of the lead terminals 716 of the speaker 710 with the mounting direction identification bosses 739. Similarly, when attaching the rear cover 720 to the speaker base 730, the rear cover 720 can be attached to the speaker base 730 in the correct orientation by aligning the box-shaped space 722S of the rear cover 720 with the mounting direction identification bosses 739. This prevents errors during installation of the speaker 710 and the rear cover 720, thereby improving work efficiency.

[0278] <Speaker mounting structure (modified version 1) / mounting method> Next, we will explain how to install the speaker unit 700 using Figure 19.

[0279] When attaching the speaker unit 700 to the speaker base 730, first attach the speaker 710 to the speaker base 730 as shown in Figures 19(b) and (c), and then attach the rear cover 720 to the speaker base 730 as shown in Figures 19(c) and (d).

[0280] More specifically, when attaching the speaker 710 to the speaker base 730, the speaker 710 is positioned relative to the speaker base 730 by aligning the dedicated screw hole 716a of the speaker 710 with the first mounting sleeve 732a, using the through-hole identification boss 738 and the first rectangular boss 737a of the speaker base 730 as guides, and by aligning the position of the lead terminal 716 of the speaker 710 with the mounting direction identification boss 739.

[0281] Next, as shown in Figure 19(c), the speaker 710 is attached to the speaker base 730 by aligning the two dedicated screw holes 716a of the speaker 710 with the holes in the mounting sleeve 732a of the speaker base 730 and fastening them with screws 740.

[0282] Furthermore, since the speaker 710 has a nearly point-symmetrical shape, it can be attached to the speaker base 730 even when rotated 180 degrees, thus simplifying the installation process of the speaker 710.

[0283] Furthermore, since the lead terminals 716 and lead wires 717 of the speaker 710 are detachable, even if the wiring of the lead wires 717 to the speaker base 730 is completed, it is possible to rotate the speaker 710 180 degrees and attach it to the speaker base 730 to connect the lead terminals 716 and lead wires 717 afterward. Similarly, even if the speaker 710 is attached to the speaker base 730, it is possible to change the wiring of the lead wires 717 and connect the lead terminals 716 and lead wires 717 afterward.

[0284] Next, when attaching the rear cover 720 to the speaker base 730, the screw holes 724 of the rear cover 720 are identified using the screw hole identification recess 724a and screw hole identification groove 722a as guides, and the second rectangular boss 737b of the speaker base 730 is used as a guide to align with the second mounting sleeve 732b. At the same time, the position of the box-shaped space 722S of the rear cover 720 is aligned with the mounting direction identification boss 739, and the rear of the speaker 710 is covered with the rear cover 720, thereby positioning the rear cover 720 relative to the speaker base 730.

[0285] Next, as shown in Figure 19(d), the screw holes 724 of the rear cover 720 are aligned with the shared screw holes 716b of the speaker 710 and the holes in the mounting sleeve 732b of the speaker base 730, and fastened with screws 740 to attach the rear cover 720 to the speaker base 730. As a result, the speaker unit 700 is integrated and fixed to the back surface of the front door 102.

[0286] In this example, when fixing the speaker 710 and the rear cover 720 to the speaker base 730 with screws 740, it is possible to fix them at once with a single screw 740 via the shared screw hole 716b of the speaker 710 and the screw hole 724 of the rear cover 720, thus simplifying the assembly work compared to conventional methods. Furthermore, since the speaker 710 can be fixed to the base using the dedicated screw hole 716a and then the rear cover 720 can be fixed to the speaker base 730, it is not necessary to position the two components simultaneously, thereby improving work efficiency.

[0287] Furthermore, the rear cover 720 has a nearly point-symmetrical shape, and even when rotated 180 degrees, it can be attached to the speaker base 730 with the speaker's lead terminals 716 and lead wires 717 housed in the box-shaped space 722S, thus simplifying the installation of the rear cover 720.

[0288] Furthermore, when the speaker unit 700 is correctly installed and the speaker 710 (first component) is covered with the rear cover 720 (second component), as shown in Figure 19(d), the dedicated screw hole 716a (first through hole) in the speaker 710 (first component) is covered by the protruding piece 723a (certain part) of the rear cover 720 (second component). Therefore, it is possible to visually confirm that it is not necessary to use the dedicated screw hole 716a when fixing the rear cover 720, and the positioning of the rear cover 720 (second component) relative to the speaker 710 (first component) can be easily performed, ensuring that the installation of the second component is carried out reliably.

[0289] Furthermore, since a screw housing space 723a1 (housing space) having a predetermined space is formed in the protruding piece 723a (certain part) of the rear cover 720 (second member), even when the rear cover 720 is positioned relative to the back 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 housed in the screw housing space 723a1 (space), so that the screw 740 (fixing means) does not interfere with the rear cover 720 (second member), and the rear cover 720 (second member) can be securely attached to the back of the speaker 710 (first member).

[0290] In particular, when screws are used as a means of fixing, if the screws are not tightened enough when fixing the speaker 710 (first component) to the speaker base 730 (base), the screw heads may protrude more than necessary from the dedicated screw holes 716a (first through holes). However, since the rear cover 720 (second component) has a screw housing space 723a1 (housing space) that can accommodate at least a part of the screw 740 (fixing means), the risk of interference between the rear cover 720 (second component) and the screw heads can be avoided.

[0291] Furthermore, since the thickness around the screw hole 724 of the rear cover 720 is thinner than the thickness of other parts of the rear cover 720, the stroke amount of the screw 740 (fixing means) that fastens both the shared screw hole 716b (second through hole) of the speaker 710 (first member) and the screw hole 724 (third through hole) of the rear cover 720 (second member) can be reduced, thereby improving work efficiency. In addition, 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, making it difficult for the screw 740 (fixing means) to come loose, and the speaker 710 (first member) and the rear cover 720 (second member) can be stably fixed to the speaker base 730 (base). Moreover, the screw hole identification recess 724a (around the third through hole) also functions as a positioning tool when attaching the screw 740 (fixing means).

[0292] Furthermore, since a common screw 740 (a screw of the same length and diameter) can be used when attaching the speaker 710 and the rear cover 720, there is no need to use multiple types of screws, which increases convenience, eliminates screw installation errors, and ensures that the components are securely attached.

[0293] Furthermore, when attaching the speaker 710 and the rear cover 720, a common screw 740 is used. Therefore, the length of the screw 740 must be at least the sum of the thickness of the screw hole 724 on the rear cover 720 and the thickness of the common screw hole 716b on the speaker 710.

[0294] Therefore, when using a common screw 740 to fasten the dedicated screw hole 716a of the speaker 710, the screw length becomes excessive by the thickness of the rear cover 720. However, in this example, the screw 740 installed in the dedicated screw hole 716a of the speaker 710 is configured to be housed in the screw housing space 723a1. As a result, the screw 740 does not interfere with the rear cover 720, and by covering the screw 740 with the screw housing space 723a1, deterioration of the screw 740 and unauthorized use of the screw 740 can be prevented.

[0295] As shown in Figure 19(d), when the rear cover 720 is attached to the speaker base 730, the bottom of the rear cover 720 is supported not only by the four mounting sleeves 732 but also by a cylindrical cover support portion 735 located on the right side in a top view. That is, when the speaker 710 (first component) and the rear cover 720 (second component) are fixed to the speaker base 730 (base), a part of the rear cover 720 (second component) comes into contact with the mounting sleeves 732 and cover support portion 735 of the speaker base 730 (base), creating a space between the speaker base 730 (base) and the rear cover 720 (second component).

[0296] Furthermore, as explained using Figure 18(b), even when the speaker 710 (first component) is covered with the rear cover 720 (second component), a space is formed between the speaker 710 (first component) and the rear cover 720 (second component).

[0297] This configuration creates spaces between the speaker base 730 and the rear cover 720 (second component), and between the speaker 710 (first component) and the rear cover 720 (second component), allowing the speaker's lead wires 717 (wiring) to be routed through these spaces to the outside of the speaker 710 (first component) and the rear cover 720 (second component).

[0298] <Speaker mounting structure (variant 1) / summary> As described above, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 620 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), and the second member comprises a plurality of third through holes (for example, the screw holes 724 shown in Figure 17(b)), and the The game machine is characterized in that one through hole is used to fix the first member of the first member and the second member to the base, the second through hole and the third through hole are used to fix both the first member and the second member to the base, the first through hole and the plurality of second through holes are arranged on the outer circumference of the first member in the order of second through hole, first through hole, second through hole, a protrusion (for example, a screw-hole projection 723b shown in Figure 17(b)) is formed near the third through hole in the second member, and a recess (for example, a screw-hole identification groove 722a shown in Figure 17(b)) is formed on the protrusion near the third through hole.

[0299] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, since the first through-hole and the multiple second through-holes are arranged on the outer circumference of the first member in the order of second through-hole, first through-hole, and second through-hole, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, a protrusion is formed near the third through-hole in the second member, and a recess is formed on the protrusion near the third through-hole (i.e., it is equipped with an identification means that allows the third through-hole to be identified). This makes it easy to determine whether each through-hole is used for fixing to the base, or for fixing both the first and second members to the base, thereby improving the efficiency of the member installation work.

[0300] Furthermore, the plurality of second through holes may each be provided at the outer end of the second member.

[0301] With this configuration, the second component can be stably fixed to the base.

[0302] Furthermore, the base may have portions formed thereon that allow for the positioning of the first member (for example, the first mounting sleeve 732a, the second mounting sleeve 732b, and the frame support portion 731 shown in Figure 19(b)).

[0303] With this configuration, even if the second component is removed from the base, the first component can be stably fixed to the base.

[0304] Furthermore, 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 Figure 17(d)) ​​and the shortest distance from the first through-hole to a different through-hole among the plurality of second through-holes (for example, the shortest distance L2 shown in Figure 17(d)) ​​may be approximately the same.

[0305] With this configuration, the first component can be stably fixed to the base, improving safety and workability.

[0306] Here, "almost the same" is not limited to cases where the shortest distance from the first through-hole to one of the multiple second through-holes and the shortest distance from the first through-hole to a different second through-hole are "identical," but also includes cases where the shortest distances of both are "substantially the same" (for example, when the ratio of the shortest distances is 4:6 or 6:4, and the first through-hole is located approximately in the center between the second through-holes arranged on either side of it).

[0307] Furthermore, the shortest distance between the two may differ depending on the shape and weight of the first member. For example, the first through-hole may be located between the second through-holes located on either side of it, near the center of gravity of the first member. If the first member is polygonal, the second through-hole may be located on the diagonal of the first member (at the vertices of the ends of the diagonals), or not on the diagonal of the first member, or near the vertex, or along the side, or at a location other than the outer edge.

[0308] Furthermore, the first member may include an electrical component (for example, an electromagnetic circuit 711 shown in Figure 19(b)) to which wiring (for example, a lead wire 717 shown in Figure 19(b)) is connected, and when the first member and the second member are fixed to the base, a space may be formed between the first member and the second member, and the wiring may be configured to be able to be pulled out to the outside of the first member and the second member through the space.

[0309] With this configuration, even if the second component covers a portion of the first component, the wiring of the first component can be brought out to the outside, increasing the design flexibility.

[0310] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 620 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), and the second member comprises a plurality of third through holes (for example, the screw holes 724 shown in Figure 17(b)). The gaming machine is characterized by comprising the following: 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 circumference of the first member; a protrusion (for example, a screw-hole projection 723b shown in Figure 17(b)) is formed near the third through hole in the second member; and a recess (for example, a screw-hole identification groove 722a shown in Figure 17(b)) is formed on the protrusion near the third through hole.

[0311] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, since the first through-hole and the multiple second through-holes are arranged on the outer circumference of the first member in the order of second through-hole, first through-hole, and second through-hole, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, a protrusion is formed near the third through-hole in the second member, and a recess is formed on the protrusion near the third through-hole (i.e., it is equipped with an identification means that allows the third through-hole to be identified). This makes it easy to determine whether the through-hole is used when fixing to the base, or when fixing both the first and second members to the base, thereby improving the efficiency of the member installation work.

[0312] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 620 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), and the second member comprises a plurality of third through holes (for example, the screw holes 724 shown in Figure 17(b)), and the first The 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 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 on the outer circumference of the first member in the order of second through-hole, first through-hole, second through-hole, and when the first member and the second member are fixed to the base, the first through-hole of the first member is covered by a certain part of the second member (for example, the protruding piece 723a of the back cover 720 shown in Figure 19(d)), characterized in that the game machine is configured such that, when the first member and the second member are fixed to the base, the first through-hole of the first member is covered by a certain part of the second member (for example, the protruding piece 723a of the back cover 720 shown in Figure 19(d)).

[0313] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, since the first through-hole and the multiple second through-holes are arranged on the outer circumference of the first member in the order of second through-hole, first through-hole, and second through-hole, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the first through-hole of the first member is covered by a certain part of the second member while the first and second members 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 the positioning of the second member relative to the first member can be easily performed, ensuring that the installation of the second member is carried out reliably.

[0314] Furthermore, the first member and the second member are configured to be fixed to the base by fixing means (for example, screws 740 shown in Figures 16 and 19), and a housing space (for example, screw housing space 723a1 shown in Figure 17(a)) capable of accommodating at least a part of the fixing means may be formed in a certain part.

[0315] With this configuration, a portion of the fixing means attached to the first through-hole of the first member is housed in the housing space, so that the fixing means does not interfere with the second member, and the second member can be securely attached to the back of the first member. In particular, when screws are used as the fixing means, if the screws are not tightened enough when the first member is fixed to the base, the screw heads may protrude more than necessary from the first through-hole. However, since the second member has a housing space that can accommodate at least a portion of the fixing means, the risk of interference between the second member and the screw heads can be avoided.

[0316] Furthermore, after the first through-hole of the first member is fixed to the base by the fixing means, the third through-hole of the second member may be positioned relative 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 fixed (or be fixed) to the base by the fixing means.

[0317] With this configuration, for example, if screws are used as a fastening means, when the first member is fixed to the base, if the screws are not tightened enough, the screw heads may protrude more than necessary from the first through-hole. However, since the second member has a accommodating space that can house at least a part of the fastening means, the risk of interference between the second member and the screw heads can be avoided.

[0318] Furthermore, the second member may be made of a material that allows the first member to be visible from the outside when the first member is housed inside it.

[0319] With this configuration, the first component can be seen through the second component, allowing for confirmation of the fixing position of the first component to the base and the positional relationship between the first and second components, thereby improving convenience during component installation work.

[0320] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 620 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), and the second member comprises a plurality of third through holes (for example, the screw holes shown in Figure 17(b)). The gaming machine is characterized by comprising 724), wherein 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 circumference of the first member, and the first through hole of the first member is covered by a certain part of the second member (for example, the protruding piece 723a of the back cover 720 shown in Figure 19(d)) when the first member and the second member are fixed to the base.

[0321] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thus improving work efficiency. In addition, since the first through-hole and the multiple second through-holes are alternately arranged on the outer circumference of the first member, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Moreover, since the first member and the second member are configured to be covered by a certain part of the second member when they 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 the positioning of the second member relative to the first member can be easily performed, ensuring that the installation work of the second member is carried out reliably.

[0322] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base portion 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 620 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), and the second member comprises a plurality of third through holes (for example, the The gaming machine is characterized by having a screw hole 724 shown, the first through hole being used to fix the first member of the first member and the second member to the base, the second through hole and the third through hole being used to fix both the first member and the second member to the base, the first through hole and the plurality of second through holes being arranged on the outer circumference of the first member in the order of second through hole, first through hole, second through hole, and the portion where the third through hole is formed is composed of a thin-walled portion that is thinner than the surrounding portion (for example, the screw hole identification recess 724a shown in Figures 17(a) and (b)).

[0323] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, since the first through-hole and the multiple second through-holes are arranged on the outer circumference of the first member in the order of second through-hole, first through-hole, and second through-hole, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the area where the third through-hole is formed is a thin-walled portion with less thickness than the surrounding area, the stroke amount of the fastening means (e.g., a screw) that fastens both the second through-hole of the first member and the third through-hole of the second member can be reduced, thereby improving work efficiency. In addition, since a portion of the head of the fastening means can be accommodated in the thin-walled portion around the third through-hole, the fastening means is less likely to come loose, and the first and second members can be stably fixed to the base. Moreover, the thin-walled portion formed around the third through-hole also functions as a positioning element when attaching the fastening means.

[0324] Furthermore, the second member may include a protruding piece (for example, a threaded protruding piece 723b shown in Figure 17(b)) that protrudes outward from the vicinity of the third through hole.

[0325] With this configuration, when the second member is positioned, the presence of the protruding piece makes it easy to recognize the fixing position of the second member (the third through-hole), and it can also function as reinforcement for the thinly formed portion around the third through-hole.

[0326] Furthermore, while the first member and the second member are 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 rear cover 720 shown in Figure 19(d)).

[0327] With this configuration, it is possible to visually confirm that it is not necessary to use the first through-hole when fixing the second member, and the positioning of the second member relative to the first member can be easily performed, ensuring that the installation of the second member is carried out reliably.

[0328] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 620 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), and the second member comprises a plurality of third through holes The gaming machine is characterized in that it includes a screw hole 724 (for example, shown in Figure 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 circumference of the first member, and the portion where the third through hole is formed is composed of a thin-walled portion that is thinner than the surrounding portion (for example, the screw hole identification recess 724a shown in Figures 17(a) and (b)).

[0329] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, since the first through-hole and the multiple second through-holes are alternately arranged on the outer circumference of the first member, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the area where the third through-hole is formed is a thin-walled portion with less thickness than the surrounding area, the stroke amount of the fastening means (e.g., a screw) that fastens both the second through-hole of the first member and the third through-hole of the second member can be reduced, thereby improving work efficiency. In addition, since a portion of the head of the fastening means can be accommodated in the thin-walled portion around the third through-hole, the fastening means is less likely to come loose, and the first and second members can be stably fixed to the base. Moreover, the thin-walled portion formed around the third through-hole also functions as a positioning element when attaching the fastening means.

[0330] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base portion 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 720 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), the second member comprises a plurality of third through holes (for example, the screw holes 724 shown in Figure 17(b)), and the first through hole is The gaming machine is characterized in that, while the first member and the second member are fixed to the base, the second member and the third member are used to fix both the first member and the second member to the base, the first member and the plurality of second member through holes are arranged on the outer circumference of the first member in the order of second member, first member, second member, and with the first member and the second member fixed to the base, a part of the second member abuts against a support provided on the base, thereby forming a space (for example, a box-shaped space 722S shown in Figures 17(a) and (b)) between the second member and the base.

[0331] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, since the first through-hole and the multiple second through-holes are arranged on the outer circumference of the first member in the order of second through-hole, first through-hole, and second through-hole, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the first and second members are fixed to the base, and a part of the second member abuts against a support provided on the base, thereby creating a space between the second member and the base, even when the first and second members are fixed to the base and a part of the first member is covered by the second member, it is possible to, for example, bring wiring of the first member to the outside, thereby increasing the degree of design freedom.

[0332] Furthermore, the first member may include an electrical component (for example, an electromagnetic circuit 711 shown in Figure 19(b)) to which wiring (for example, a lead wire 717 shown in Figure 19(b)) is connected, and may be configured to allow the wiring to be brought out to the outside of the first member and the second member through the space.

[0333] With this configuration, even if the second component covers a portion of the first component, the wiring of the first component can be brought out to the outside, increasing the design flexibility.

[0334] Furthermore, the second member includes a space having a predetermined space (for example, a box-shaped space 722S shown in Figures 17(a) and (b)), the space being configured to accommodate at least a portion of the wiring, and the space being configured to include a first space having a vertical rectangular parallelepiped shape (for example, a first space 722S1 shown in Figures 17(a) and (b)) and a second space having a horizontal rectangular parallelepiped shape (for example, a second space 722S2 shown in Figures 17(a) and (b)), and when the first member is covered with the second member, the space of the second member may be positioned between the first through-hole and the second through-hole of the first member.

[0335] With this configuration, when fixing the second component to the base, a wider area can be provided outside the contact points between the base and the second component (around the through-hole), thus preventing situations where wiring gets caught between the base and the second component.

[0336] Furthermore, the first space and the second space may be located outside the third through-hole in the second member (radially outward from the second member).

[0337] With this configuration, the horizontally elongated rectangular prism-shaped second space provides ample room for routing wiring between the second member and the base, while the vertically elongated rectangular prism-shaped first space partially restricts the area through which the wiring is guided, preventing the wiring from bunching up near the through-hole when the second member is fixed in place and interfering with the installation process.

[0338] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 710 shown in Figures 16 and 17(c),(d)) that can be fixed to a base (for example, the speaker base portion 730 shown in Figures 16 and 19), and a second member (for example, the rear cover 620 shown in Figures 16 and 17(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a first through hole (for example, the dedicated screw hole 716a shown in Figure 17(d)) ​​and a plurality of second through holes different from the first through hole (for example, the common screw holes 716b shown in Figure 17(d)), and the second member comprises a plurality of third through holes (for example, the screw holes 724 shown in Figure 17(b)). The game machine is characterized in that the first through-hole is 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 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 circumference of the first member, and when the first member and the second member are fixed to the base, a part of the second member abuts against a support provided on the base, thereby forming a space (for example, a box-shaped space 722S shown in Figures 17(a) and (b)) between the second member and the base.

[0339] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, since the first through-hole and the multiple second through-holes are alternately arranged on the outer circumference of the first member, the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the first and second members are fixed to the base, and a part of the second member abuts against a support provided on the base, thereby creating a space between the second member and the base, even when the first and second members are fixed to the base and a part of the first member is covered by the second member, it is possible to, for example, bring wiring of the first member to the outside, thereby increasing the degree of design freedom.

[0340] <Speaker mounting structure (modified version 2) / Speaker unit configuration> Next, the configuration of the speaker unit 800 according to Modification 2 will be explained using Figure 20. Figure 20(a) is an exploded perspective view of the speaker unit 800 according to Modification 2.

[0341] As shown in Figure 20(a), the speaker unit 800 according to the modified example 2 consists of a speaker 810 (first component) for bass output having a large diaphragm and a rear cover 820 (second component) that covers the rear side of the speaker 810, and is attached to a speaker base 830 (base) formed on the lower rear side of the front door 102 of the slot machine.

[0342] In this example, the slot machine (gaming machine) has two speaker bases 830 arranged horizontally at a predetermined distance from each other on the back of the front door 102, and each speaker base 830 is configured to be able to accommodate a speaker unit 800.

[0343] Figure 20(b) is an external perspective view showing the two speaker units 800 attached to the back of the front door 102.

[0344] As shown in Figure 20(b), the lead wires 817 of the two left and right speakers 810 pass through the inner space of the box-shaped space 822S of the rear cover 820, are pulled out from the space formed between the rear cover 820 and the speaker base portion 830, are routed along the back 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 or the second sub-control unit 500 described using Figure 3) located above the front door 102.

[0345] In this example, two speaker units 800 are shown arranged horizontally on the back of the front door 102, but three or more speaker units 800 may be arranged, or the speaker units 800 may be arranged vertically or diagonally on the back of the front door 102.

[0346] The speaker unit 800 can be positioned such that the box-shaped space 822S of the rear cover 820 and the lead terminal 816 of the speaker 810 face upwards, and the lead wire 817 of the speaker 810 is pulled out from above (as shown in Figure 20(b); hereinafter sometimes referred to as the "upward direction"). In addition, the box-shaped space 822S of the rear cover 820 and the lead terminal 816 of the speaker 810 face to the right, and the lead wire 817 of the speaker 810 is pulled out from the right side (hereinafter sometimes referred to as the "rightward direction"). It can be installed in one of the following directions: ) with the box-shaped space 822S of the rear cover 820 and the lead terminal 816 of the speaker 810 facing downwards, and the lead wire 817 of the speaker 810 being pulled out from the bottom (hereinafter sometimes referred to as the "downward direction"), or with the box-shaped space 822S of the rear cover 820 and the lead terminal 816 of the speaker 810 facing left, and the lead wire 817 of the speaker 810 being pulled out from the left side (hereinafter sometimes referred to as the "leftward direction").

[0347] In this example, the speaker unit 800 can be positioned upward, to the right, downward, or to the left relative to the speaker base 830, thus increasing the degree of freedom in mounting the speaker unit 800.

[0348] For example, in the mounting configuration of the speaker unit 800 shown in Figure 20(b), since both speaker units 800 are mounted facing upward, the lead wires 817 of the two speakers 810 can be pulled out from above and then bundled together above the speaker unit 800, thereby improving the efficiency of wiring work and ease of maintenance. This is particularly suitable for gaming machines where space can be secured above the speaker unit 800 (for example, medalless slot machines where hoppers or medal selectors are not located above the speaker unit 800, or enclosed gaming machines where trays are not located above the speaker unit 800).

[0349] On the other hand, when applying to gaming machines where it is difficult to secure space above the speaker unit 800 (for example, slot machines where a hopper or medal selector is located above the speaker unit 800, or pachinko machines where a lower tray is located above the speaker unit 800), if the two speaker units 800 are mounted in any direction other than upward—downward, to the right, or to the left—the lead wires 817 of the speaker 810 can be routed to avoid other devices located above the speaker unit 800, thereby improving the efficiency of wiring work and making effective use of the limited space behind the front door 102.

[0350] Furthermore, by oriented the two speaker units 800 differently, the direction in which the lead wires 817 of speaker 810 are drawn out can also be changed. For example, if the speaker unit 800 located on the left side when viewed from the rear of the front door 102 is installed facing right, while the speaker unit 800 located on the right side when viewed from the rear of the front door 102 is installed facing left, the lead wires 817 of speaker 810 can be drawn out from the two speaker units 800 toward the center of the rear of the front door 102, thereby improving the efficiency of wiring work and ease of maintenance.

[0351] Furthermore, the length of the lead wire 817 of the speaker 810 is not particularly limited, and it is sufficient that it is long enough to electrically connect 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 as explained using Figure 3). However, if the length is set to the minimum length required when the speaker unit 800 is mounted in an upward direction, and the lead wire 817 is not long enough to connect to the sound output control means when attempting to mount the speaker unit 800 in a direction other than upward, the mounting direction of the speaker unit 800 can be intentionally restricted, and the mounting direction of the speaker unit 800 in the gaming machine can be standardized.

[0352] <Speaker mounting structure (modified version 2) / Speaker base section> As shown in Figure 20(a), the speaker base 830 is composed of an annular diaphragm support portion 831 that supports the outer edge 813a of the diaphragm 813 of the speaker 810 (see Figure 22; the part that supports the outer edge of the cone of the diaphragm 813), four cylindrical mounting sleeves 832 for screwing the speaker 810 and the rear cover 820 to the front door 102, and a horizontally elongated elliptical sound hole plate 834 that fits inside the diaphragm support portion 831. The detailed configuration of the speaker base 830 will be described later with reference to Figure 23.

[0353] Furthermore, within the space formed by the diaphragm support portion 831 and the back surface of the front door 102, one of several cylindrical bosses 835 for fixing the title panel 162 (see Figure 1), which is attached to the lower front surface of the front door 102, is provided.

[0354] In this example, other components unrelated to the speaker unit 800 or speaker base 830 (in this example, the boss 835 for fixing the title panel 162) can be housed in the space formed by the diaphragm support 831 and the back of the front door 102. This allows for effective use of the limited space behind the front door 102, thus saving space behind the front door 102.

[0355] <Speaker mounting structure (modified version 2) / Speaker, rear cover> Next, using Figures 21 and 22, we will explain in detail the speaker 810 and rear cover 820 that constitute the speaker unit 800 according to the modified example 2.

[0356] Figure 21(a) is a side view of the rear cover 820, and Figure 21(b) is a top view of the rear cover 820. Figure 21(c) is a side view of the speaker 810, and Figure 21(d) is a top view of the speaker 810. Figure 22 is a plan view of the speaker 810 housed in the inner space of the rear cover 820, as seen from the bottom side of the speaker 810.

[0357] <Speaker mounting structure (modified version 2) / Speaker> The speaker 810 (first component) is a cone-type dynamic speaker, and as shown in Figure 21(c), it is generally composed of a voice coil and a magnet, an electromagnetic circuit 811 (electrical component) that vibrates a diaphragm 813 (described later) in response to an electrical signal, a frame 812 that supports the electromagnetic circuit 811, a diaphragm 813 that vibrates to generate sound, a flat flange 814 on which the diaphragm 813 is fixed so as to be able to vibrate, a lead terminal 816 disposed on the upper side of the flange 814 when viewed from above, and a lead wire 817 (wiring) that is detachably connected to the lead terminal 816.

[0358] The frame 812 is a cylindrical metal ring frame that widens slightly towards the front, and multiple openings 815 (see Figure 20) are formed along the circumference on its side to allow air to escape from around the diaphragm 813. That is, the side of the frame 812 has multiple openings 815 formed along the circumference, and between the openings 815, support columns 812a (see Figure 20) are formed along the front-to-back direction. The diaphragm 813 is formed in a cone shape that opens towards the front, using a flexible material such as paper.

[0359] As shown in Figure 21(d), elliptical dedicated screw holes 816a (first through holes) for screwing the speaker 810 to the speaker base 830 are formed at the upper left and lower right corners of the outer end of the flange 814. In addition, elliptical shared screw holes 816b (second through holes) for screwing the speaker 810 and the rear cover 820 to the speaker base 830 are formed at the lower left and upper right corners of the outer end of the flange 814.

[0360] The size and shape of the dedicated screw hole 816a (first through hole) and the shared screw hole 816b (second through hole) are not particularly limited, but in this example, as shown in Figure 22, the dedicated screw hole 816a (first through hole) and the shared screw hole 816b (second through hole) 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.

[0361] In this example, two dedicated screw holes 816a (first through holes) are positioned diagonally at the upper left and lower right corners of the outer edge of the flange 814 (at the vertices of the diagonal ends), and two shared screw holes 816b (second through holes) are positioned diagonally at the lower left and upper right corners of the outer edge of the flange 814 (at the vertices of the diagonal ends). As a result, the dedicated screw holes 816a (first through holes) and the shared screw holes 816b (second through holes) are alternately arranged along the outer edge of the flange 818 at predetermined intervals in the circumferential direction.

[0362] In other words, as shown in Figure 21(d), when a virtual straight line VL is drawn connecting a plurality of dedicated screw holes 816a (first through holes) and the shared screw holes 816b (second through holes) adjacent to these plurality of dedicated screw holes 816a (first through holes), a virtual quadrilateral VQ is formed. The plurality of dedicated screw holes 816a (first through holes) are arranged on the (first) diagonal (vertices at the ends of the diagonals) of the virtual quadrilateral VQ, and the plurality of shared screw holes 816b (second through holes) are arranged on the (second) diagonal (vertices at the ends of the diagonals) of the virtual quadrilateral VQ, which is different from the first diagonal.

[0363] Furthermore, 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 Figure 21(d), the shortest distance L3 from the dedicated screw hole 816a (first through hole) located in the upper left corner to one of the two shared screw holes 816b (second through holes) (for example, the shared screw hole 816b located in the upper right corner) and the shortest distance L4 from the dedicated screw hole 816a (first through hole) located in the upper left corner to a different through hole among the two shared screw holes 816b (second through holes) (for example, the shared screw hole 816b located in the lower left corner) are approximately the same.

[0364] In this example, when fixing the speaker 810 (first component) to the speaker base 830 (base) using the dedicated screw hole 816a (first through hole) for positioning, or when removing only the rear cover 820 (second component) from the speaker base 830 (base), the speaker 810 (first component) can be stably fixed, thereby improving safety and workability.

[0365] Furthermore, as described above, the speaker unit 800 can be positioned upward, to the right, downward, or to the left relative to the speaker base 830, and the lead terminals 816 of the speaker 810 can be positioned facing upward, to the right, downward, or to the left, thus increasing the flexibility in mounting the speaker 810.

[0366] <Speaker mounting structure (modified version 2) / rear cover> Next, we will explain the rear cover 820 (the second component).

[0367] The rear cover 820 (second component) is a colored, transparent resin component capable of housing the speaker 810 inside, and is made of a material that allows the speaker 810 (first component) to be visible from the outside when the speaker 810 (first component) is housed inside.

[0368] In this example, at least a portion of the speaker 810 (first component) can be seen through the rear cover 820 (second component), allowing for confirmation of the fixing position of the speaker 810 (first component) relative to the speaker base 830 (base), as well as the positional relationship between the speaker 810 (first component) and the rear cover 820 (second component), thereby improving convenience during component installation.

[0369] The back cover 820 may be made of any transparent material, and its material is not limited to a colored transparent resin. For example, it may be made of colorless transparent (or translucent) plastic, acrylic, polycarbonate, polyvinyl chloride, glass, metal, etc.

[0370] As shown in Figures 21(a) and (b), the rear cover 820 has an annular cover portion 821 on the rear side that covers a part of the rear end of the speaker 810, and a cylindrical side wall portion 822 that widens slightly toward the rear, with this cover portion 821 as the base end.

[0371] A predetermined marking 826 (in this example, a part number and material) is applied to the upper part of the cover portion 821 when viewed from above. The manner of the predetermined marking 826 is not particularly limited, but in this example, on the surface of the cover portion 821, a part number marking (in this example, the string "SPxxxx") representing the part number of the back cover 820 is engraved to the left of the area where the lead terminals 816 of the speaker 810 are visible when the back cover 820 covers the speaker 810, and a material marking (in this example, the string "PC") representing the material of the back cover 820 is engraved to the right of the area where the lead terminals 816 of the speaker 810 are visible when the back cover 820 covers the speaker 810.

[0372] In other words, when viewing the speaker 810 through the rear cover 820, the part number (in this example, the string "SPxxxx") is visible to the left of the speaker 810's lead terminal 816, and the material (in this example, the string "PC") is visible to the right of the speaker 810's lead terminal 816.

[0373] In this example, in addition to the predetermined marking 826 being applied to the rear cover 820, the speaker 810's lead terminals 816 are visible when the speaker 810 is viewed through the rear cover 820. Therefore, the correct orientation (mounting direction) of the rear cover 820 can be easily identified by the orientation of the predetermined marking 826 and whether or not the speaker 810's lead terminals 816 are visible in the center of the predetermined marking 826, thereby improving convenience when mounting the rear cover 820.

[0374] Furthermore, as shown in Figure 21(b), the rear cover 820 is provided with 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.

[0375] In this example, two protruding pieces 823a are positioned diagonally at the upper left and lower right corners of the outer edge of the side wall portion 822 (at the vertices of the ends of the diagonals), and two protruding pieces 823b with screw holes are positioned diagonally at the lower left and upper right corners of the outer edge of the side wall portion 822 (at the vertices of the ends of the diagonals). As a result, the protruding pieces 823a and the protruding pieces 823b with screw holes are alternately arranged along the outer edge of the side wall portion 822 at predetermined intervals in the circumferential direction.

[0376] In other words, as shown in Figure 21(b), a virtual quadrilateral VQ2 is formed by connecting the vertices of the multiple protruding pieces 823a and the screw-holeed protruding pieces 823b adjacent to the multiple protruding pieces 823a with a virtual straight line VL2. The multiple protruding pieces 823a are arranged on the (first) diagonal (the vertices at the ends of the diagonals) of the virtual quadrilateral VQ2, and the multiple screw-holeed protruding pieces 823b are arranged on the (second) diagonal (the vertices at the ends of the diagonals) of the virtual quadrilateral VQ2.

[0377] The protruding pieces 823b with screw holes, positioned diagonally at the lower left and upper right corners (at the vertices of the diagonal ends), have circular screw holes 824 (third through holes) formed therein for integrating the speaker 810 and rear cover 820 and screwing them to the speaker base 730.

[0378] With this configuration, the speaker unit 800 is integrated and fixed to the speaker base 730 by fastening the shared screw hole 816b (second through hole) of the speaker 810 and the screw hole 824 (third through hole) of the rear cover 820 to the speaker base 830 (base) with screws 840 (fixing means; see Figure 20). The method of mounting the speaker unit 800 will be described later.

[0379] Furthermore, a screw hole identification groove 822a is formed in the vicinity of the screw hole 824 in the side wall portion 822, consisting of a straight groove extending from the bottom to the top of the side wall portion 822. In other words, in this example, the screw hole 824 can be identified by forming the screw hole identification groove 822a in the vicinity of the screw hole 824.

[0380] In this example, at least one of the dedicated screw hole 816a (first through hole), the shared screw hole 816b (second through hole), and the screw hole 824 (third through hole) (in this example, screw hole 824 (third through hole)) is configured to be identifiable. Therefore, it is easy to determine whether each through hole is used to fix only the speaker 810 (first component) to the speaker base 830 (base), or to fix both the speaker 810 (first component) and the rear cover 820 (second component) to the speaker base 830 (base), thereby improving the efficiency of component installation work. In addition, the screw hole identification groove 822a can be used as a guide to easily identify the correct orientation (mounting direction) of the rear cover 820, improving convenience when installing the rear cover 820, etc.

[0381] In this example, a configuration is shown in which a screw hole identification groove 822a is formed near the screw hole 824 (third through hole) to make the screw hole 824 (third through hole) identifiable. However, the present invention is not limited to this, and for example, a portion that can identify the screw hole 824 (third through hole) may be formed on a component other than the rear cover 820 (second component) (for example, the speaker base 830 (base) or the speaker 810 (first component)), or a sticker or the like that can identify the screw hole 824 (third through hole) may be attached, or a mark, print, or engraving that can identify the screw hole 824 (third through hole) may be applied.

[0382] Furthermore, while an example configuration has been given in which the screw hole 824 (third through hole) of the rear cover 820 can be identified, an alternative (or additional) configuration may be adopted in which the dedicated screw hole 816a (first through hole) of the speaker 810 (first component) and / or the shared screw hole 816b (second through hole) can be identified.

[0383] Therefore, for example, a portion is formed on the mounting sleeve 832 of the speaker base 830 (base) in which at least one of the dedicated screw hole 816a (first through hole), common screw hole 816b (second through hole), and screw hole 84 (third through hole) is identifiable, or a seal or the like is affixed in which at least one through hole is identifiable, or a marking, printing, engraving, etc. is applied in which at least one through hole is identifiable, or the flare of the speaker 810 (first component) The strip 814 may have a portion formed to identify the dedicated screw hole 816a (first through hole) and / or the common screw hole 816b (second through hole), or a seal or the like that can identify the dedicated screw hole 816a (first through hole) and / or the common screw hole 816b (second through hole), or a marking, printing, engraving, etc. that can identify the dedicated screw hole 816a (first through hole) and / or the common screw hole 816b (second through hole).

[0384] Alternatively, the shape of the screw-hole-equipped protruding piece 823b of the rear cover 820 may be made different from the shape of the protruding piece 823a so that it can be identified that the through hole formed in the screw-hole-equipped protruding piece 823b is a through hole used when fixing both the speaker 810 (first component) and the rear cover 820 (second component) to the speaker base 830 (base). Or, conversely, the shape of the screw-hole-equipped protruding piece 823a of the rear cover 820 may be made different from the shape of the screw-hole-equipped protruding piece 823b so that it can be identified that the through hole of the speaker 810 corresponding to the protruding piece 823a is a through hole used when fixing only the speaker 810 (first component) to the speaker base 830 (base).

[0385] With this configuration, the function of the through-hole can be visually identified based on the shape of the protruding piece of the rear cover 820, thereby improving work efficiency.

[0386] Furthermore, as shown in Figure 21(b), the protruding pieces 823a, which are positioned diagonally at the upper left and lower right corners of the rear cover 820, have through holes 825 (fourth through hole) formed therein, which have an inner diameter larger than the inner diameter of the screw hole 824 (third through hole).

[0387] As shown in Figure 22, this through-hole 825 (fourth through-hole) has a larger inner diameter than the elliptical common screw hole 816b (second through-hole) of the speaker 810, and as shown in Figure 23(d), it has a larger inner diameter than the outer diameter of the head of the screw 840.

[0388] With this configuration, even if the speaker 810 is fixed to the back of the front door 102 by fastening the speaker 810's dedicated screw hole 816a (first through hole) to the speaker base 830 (base) with a screw 840, and then the rear cover 820 is positioned relative to the back of the speaker 810, the screw 840 attached to the speaker 810's dedicated screw hole 816a can be accommodated without contacting the through hole 825, and the screw 840 does not interfere with the rear cover 820. Therefore, it is easy to visually confirm that the rear cover 820 is installed in the correct position relative to the speaker 810 by looking at the positional relationship between the through hole 825 (fourth through hole) and the screw 840, and the positioning of the rear cover 820 relative to the speaker 810 can be accurately performed.

[0389] Furthermore, by accurately positioning the rear cover 820 relative to the speaker 810, the screw 840 is housed inside the through hole 825, and the horizontal movement of the rear cover 820 is restricted by the screw 840. This prevents misalignment and rattling of the rear cover 820 during installation. Additionally, since the through hole 825 (fourth through hole) has a larger inner diameter than the elliptical common screw hole 816b (second through hole) of the speaker 810, it can absorb assembly errors (misalignment of the rear cover 820) relative to the speaker 810, simplifying the installation process.

[0390] In this example, a through hole is shown in the protruding piece 823a of the rear cover 820. However, the present invention is not limited to this. For example, instead of a through hole, a recess or notch may be formed in the protruding piece 823a to prevent interference with the screw 840, or the protruding piece 823a itself may be removed from the rear cover 820. In other words, when the speaker 810 is fixed to the back surface of the front door 102 with a screw 840, the screw 840 attached to the dedicated screw hole 816a of the speaker 810 should be configured so as not to interfere with the rear cover 820.

[0391] As shown in Figure 21(b), a box-shaped space 822S (space) is formed protruding from the upper outer edge of the rear cover 820 when viewed from above, for housing the lead terminals 816 of the speaker 810 and for leading the lead wires 817 to the outside of the speaker unit 800.

[0392] With this configuration, as shown in Figure 22, when the speaker 810 (first component) is housed inside the rear cover 820 (second component), a space SP is formed between the speaker 810 (first component) and the rear cover 820 (second component), and the speaker 810's lead wires 817 (wiring) can be pulled out to the outside of the speaker 810 (first component) and the rear cover 820 (second component) through this space SP.

[0393] In this example, even when a part of the speaker 810 (first component) is covered by the rear cover 820 (second component), the lead wires 817 (wiring) of the speaker 810 (first component) can be brought out to the outside, thereby increasing the design flexibility.

[0394] Furthermore, as shown in Figure 22, four ribs 827 are formed protruding from the inside of the bottom surface of the rear cover 820, which can contact the four flange corners 814a of the speaker 810's flange 814, and the shape of the lower edge 820a of the rear cover 820 is formed to be almost identical to the outer edge of one side of the speaker 810's flange 814.

[0395] In this example, by bringing the four ribs 827 of the rear cover 820 into contact with one of the four flange corners 814a of the flange 814 of the speaker 810, and bringing the lower edge 820a of the rear cover 820 into contact with the outer edge of one side of the flange 814 of the speaker 810, the speaker 810 can be easily and reliably positioned relative to the rear cover 820, and the speaker 810 and the rear cover 820 can be integrated. Therefore, by the mounting method 2 described later, the speaker 810 and the rear cover 820 can be mounted to the speaker base 830 in an integrated state, simplifying the installation work of the speaker unit 800.

[0396] Furthermore, as described above, the speaker unit 800 can be positioned upward, to the right, downward, or to the left relative to the speaker base 830, and the box-shaped space 822S of the rear cover 820 can be positioned facing upward, to the right, downward, or to the left, thus increasing the degree of freedom in mounting the rear cover 820.

[0397] As mentioned above, the rear cover 820 is marked with a predetermined indicator 826. Therefore, when attaching the rear cover 820 to the speaker base 830, it is preferable to attach it in an upward direction so that the side with the predetermined indicator 826 is facing upwards and the indicator 826 is easily visible. However, even if the rear cover 820 is attached facing to the right, downwards, or left, the orientation of the predetermined indicator 826 will be reversed, but it will still be possible to attach it to the speaker base 830.

[0398] <Speaker mounting structure (modified version 2) / Speaker base section> Next, we will explain the speaker base 830 in detail using Figure 23.

[0399] Figures 23(a) to (d) show an example of how to mount the speaker unit 800 in chronological order, with figure 23(a) showing the speaker base 830 with the sound hole plate 834 removed.

[0400] As explained using Figure 20(a), the speaker base 830 is composed of an annular diaphragm support portion 831 that supports the outer edge portion 813a of the diaphragm 813 of the speaker 810 (see Figure 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 elongated elliptical sound hole plate 834 that fits inside the diaphragm support portion 831.

[0401] The height of the frame support portion 831 (height from the back of the front door 102) is designed to be higher than the maximum vibration amplitude of the diaphragm 813 of the speaker 810 so as not to hinder the vibration of the diaphragm 813, and a sound hole plate 834 is fitted inside it, as shown in Figure 23(b).

[0402] As shown in Figure 23(c), when the speaker 810 is attached to the speaker base 830, the outer edge 813a of the diaphragm 813 of the speaker 810 comes into contact with the frame support 831, and a sealed space is formed between the speaker base 830 and the diaphragm 813 of the speaker 810.

[0403] In this example, the diaphragm 813 of the speaker 810 can be supported around the frame support portion 831, and a sealed space can be formed by the speaker base portion 830 and the diaphragm 813 of the speaker 810. As a result, the sound output from the diaphragm 813 of the speaker 810 can be efficiently output through the sound hole plate 834 towards the front of the front door 102, thereby enhancing the acoustic effect.

[0404] Of the four mounting sleeves 832, the first mounting sleeve 832a, located in the upper left and lower right corners when viewed from above, is a mounting sleeve through which the dedicated screw hole 816a (first through hole) of the speaker 810 is fastened by a screw 840, as shown in Figure 23(c).

[0405] On the other hand, of the four mounting sleeves 832, the second mounting sleeve 832b, which is located in the lower left corner and upper right corner when viewed from above, is a mounting sleeve that fastens 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 with a screw 840, as shown in Figure 23(d).

[0406] Furthermore, on the outer circumference of each of the four mounting sleeves 832 (832a, 832b), two cylindrical ribs 838 are formed at predetermined intervals, on which the four flange corners 814a (see Figure 22) of the speaker 810's flange 814 can be placed.

[0407] In this example, when attaching the speaker 810 to the speaker base 830, the flange corner portion 814a of the flange 814 of the speaker 810 is placed on the rib 838 of the mounting sleeve 832, thereby enabling easy and reliable positioning of the speaker 810 and preventing misalignment or rattling of the speaker 810 during installation.

[0408] <Speaker mounting structure (modified version 2) / mounting method 1> Next, we will explain the mounting method 1 for the speaker unit 800 using Figure 23.

[0409] When attaching the speaker unit 800 to the speaker base 830, first attach the speaker 810 to the speaker base 830 as shown in Figures 23(b) and (c), and then attach the rear cover 820 to the speaker base 830 as shown in Figures 23(c) and (d).

[0410] More specifically, when attaching the speaker 810 to the speaker base 830, with the lead terminals 816 of the speaker 810 facing upwards, the flange corner 814a of the flange 814 is placed on the rib 838 of the mounting sleeve 832, thereby aligning the dedicated screw hole 816a of the speaker 810 with the first mounting sleeve 832a, and bringing the outer edge 813a of the diaphragm 813 of the speaker 810 into contact with the frame support 831, thereby positioning the speaker 810 relative to the speaker base 830.

[0411] Next, as shown in Figure 23(c), the speaker 810 is attached to the speaker base 830 by aligning the dedicated screw hole 816a of the speaker 810 with the hole in the first mounting sleeve 832a of the speaker base 830 and fastening it with the screw 840.

[0412] Furthermore, since the lead terminals 816 and lead wires 817 of speaker 810 are detachable, even after the wiring of lead wires 817 to speaker base 830 is completed, it is possible to rotate speaker 810 90, 180, or 270 degrees and attach it to speaker base 830 to connect lead terminals 816 and lead wires 817 later. Even after speaker 810 is attached to speaker base 830, it is possible to change the wiring of lead wires 817 and connect lead terminals 816 and lead wires 817 later.

[0413] Next, when attaching the rear cover 820 to the speaker base 830, the position of the box-shaped space 822S of the rear cover 820 is aligned with the lead terminals 816 of the speaker 810, and with the rear cover 820 facing upwards, the screw holes 824 of the rear cover 820 are aligned with the second mounting sleeve 832b, and the rear cover 820 is used to cover the speaker 810, thereby positioning the rear cover 820 relative to the speaker base 830.

[0414] Next, as shown in Figure 23(d), the screw holes 824 of the rear cover 820 are aligned with the shared screw holes 816b of the speaker 810 and the holes in the second mounting sleeve 832b of the speaker base 830, and fastened with screws 840 to attach the rear cover 820 to the speaker base 830. As a result, the speaker unit 800 is integrated and fixed to the back surface of the front door 102.

[0415] In this example, when fixing the speaker 810 and the rear cover 820 to the speaker base 830 with screws 840, it is possible to fix them at once with a single screw 840 via the shared screw hole 816b of the speaker 810 and the screw hole 824 of the rear cover 820, thus simplifying the assembly work compared to conventional methods. Furthermore, since the rear cover 820 can be fixed to the speaker base 830 while the speaker 810 is fixed and positioned on the base using the dedicated screw hole 816a, it is not necessary to position the two components simultaneously, thereby improving work efficiency.

[0416] Furthermore, when the speaker unit 800 is correctly installed and the speaker 810 (first component) is covered with the rear cover 820 (second component), as shown in Figure 23(d), the screw 840 installed in the dedicated screw hole 816a of the speaker 810 can be accommodated without contacting the inside of the through hole 825 (fourth through hole), and the screw 840 does not interfere with the rear cover 820. Therefore, depending on the positional relationship between the through hole 825 (fourth through hole) and the screw 840, the rear cover 820 will not interfere with the speaker 810. It is easy to visually confirm that it is installed in the correct position relative to the speaker 810, and the positioning of the rear cover 820 relative to the speaker 810 can be accurately performed. Furthermore, when the rear cover 820 is accurately positioned relative to the speaker 810, the screw 840 is housed inside the through hole 825, and the horizontal movement of the rear cover 820 is restricted by the screw 840, thus preventing misalignment or rattling of the rear cover 820 when it is installed.

[0417] In particular, when screws are used as a means of fixing, if the screws are not tightened enough when fixing the speaker 810 (first component) to the speaker base 830 (base), the screw heads may protrude more than necessary from the dedicated screw holes 816a (first through holes). However, since the rear cover 820 has through holes 825 (fourth through holes), the risk of interference between the rear cover 820 (second component) and the screw heads can be avoided.

[0418] In other words, when the speaker unit 800 is correctly installed and the speaker 810 (first component) is covered with the rear cover 820 (second component), the dedicated screw hole 816a (first through hole) of the speaker 810 (first component) is configured not to be covered by the rear cover 820 (second component), and the screw 840 is configured to contact only the speaker 810 (first component). Therefore, even when the rear cover 820 (second component) is positioned relative to the speaker base 830 (base), the dedicated screw hole 816a of the speaker 810 (first component) is configured not to be covered by the rear cover 820 (second component), and the screw 840 is configured to contact only the speaker 810 (first component). The first through-hole (a) is not obscured by the rear cover 820 (second component), allowing for efficient installation. Furthermore, even if the speaker 810 (first component) and the rear cover 820 (second component) are first fixed to the speaker base 830 (base) using the shared screw hole 816b (second through-hole) of the speaker 810 and the screw hole 824 (third through-hole) of the rear cover 820, it becomes possible to subsequently fix the speaker 810 (first component) using the dedicated screw hole 816a (first through-hole), thereby improving the convenience of the installation process.

[0419] Furthermore, since a common screw 840 (a screw of the same length and diameter) can be used when attaching the speaker 810 and the rear cover 820, there is no need to use multiple types of screws, which increases convenience, eliminates screw installation errors, and ensures that the components are securely attached.

[0420] Furthermore, when attaching the speaker 810 and the rear cover 820, a common screw 840 is used. Therefore, the length of the screw 840 must be at least the sum of the thickness of the screw hole 824 on the rear cover 820 and the thickness of the common screw hole 816b on the speaker 810.

[0421] Therefore, when using a common screw 840 to fasten the dedicated screw hole 816a of the speaker 810, the screw length becomes excessive by the thickness of the rear cover 820. However, in this example, since the screw 840 installed in the dedicated screw hole 816a of the speaker 810 can be accommodated inside the through hole 825 (fourth through hole), the screw 840 does not interfere with the rear cover 820.

[0422] Furthermore, as shown in Figure 23(d), when the speaker 810 and rear cover 820 are attached to the speaker base 830, the four screws 840 are visible. Therefore, even if a person attempting to tamper with the speaker unit 800 were to try to remove it, it would appear to take a considerable amount of time, thus preventing any fraudulent activity.

[0423] Furthermore, when the speaker 810 and rear cover 820 are attached to the speaker base 830, the speaker 810 and rear cover 820 are supported by the four mounting sleeves 832 of the speaker base 830, thus forming a predetermined space between the speaker 810 and rear cover 820 and the speaker base 830.

[0424] Furthermore, as explained using Figure 22, when the speaker 810 is covered with the rear cover 820, a space SP is formed between the speaker 810 and the rear cover 820.

[0425] This configuration creates spaces between the speaker base 830 and the rear cover 820 (second component), and between the speaker 810 (first component) and the rear cover 820 (second component), allowing the speaker 810's lead wires 817 (wiring) to be routed to the outside of the speaker 810 (first component) and the rear cover 820 (second component).

[0426] <Speaker mounting structure (modified version 2) / mounting method 2> Next, we will explain the second method for installing speaker unit 800.

[0427] In the speaker unit 800, even if the speaker 810 and the rear cover 820 are initially attached to the speaker base 830 using the shared screw hole 816b of the speaker 810 and the screw hole 824 of the rear cover 820, the speaker 810 can later be fastened with a screw 840 through its dedicated screw hole 816a.

[0428] More specifically, when first integrating the speaker 810 and the rear cover 820 and attaching them to the speaker base 830, the speaker 810 is covered with the rear cover 820 to integrate it, with the position of the lead terminal 816 of the speaker 810 and the position of the box-shaped space 822S of the rear cover 820 aligned. The speaker 810 and the rear cover 820 are then positioned relative to the speaker base 830 by aligning the common screw hole 816b of the speaker 810 with the screw hole 824 of the rear cover 820 with the second mounting sleeve 832b.

[0429] Next, the speaker 810 and the rear cover 820 are attached together to the speaker base 830 by aligning the shared screw hole 816b of the speaker 810 with the screw hole 824 of the rear cover 820 with the hole in the second mounting sleeve 832b and fastening them with the screw 840.

[0430] Then, when fully attaching the speaker 810 to the speaker base 830, the speaker 810 is positioned relative to the speaker base 830 by aligning the dedicated screw hole 816a of the speaker 810 with the first mounting sleeve 832a.

[0431] Next, the speaker 810 is attached to the speaker base 830 by aligning the dedicated screw hole 816a of the speaker 810 with the hole in the first mounting sleeve 832a of the speaker base 830 and fastening it with the screw 840. As a result, the speaker unit 800 is integrated and fixed to the back surface of the front door 102.

[0432] In this example, depending on the worker's skill level, the appropriate mounting method can be selected from among several mounting methods (mounting methods 1 and 2), thereby improving work efficiency.

[0433] <Speaker mounting structure (modified version 2) / summary> As described above, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 810 shown in Figures 20 and 21(c),(d)) that can be fixed to a base (for example, the speaker base 830 shown in Figures 20 and 23), and a second member (for example, the rear cover 820 shown in Figures 20 and 21(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a plurality of first through holes (for example, dedicated screw holes 816a shown in Figure 21(d)) and a plurality of second through holes different from the first through holes (for example, common screw holes 816b shown in Figure 21(d)), the second member comprises a plurality of third through holes (for example, screw holes 824 shown in Figure 21(b)), and the first through holes are connected to the first member and the second member. The game machine is characterized in that the plurality of first through holes are used when fixing the first member to the base, the second and third through holes are used when fixing both the first member and the second member to the base, a virtual rectangle (for example, rectangle VQ shown in Figure 21(d)) is formed when the plurality of first through holes and the second through holes adjacent to the plurality of first through holes are connected by a virtual straight line (for example, the straight line VL shown in Figure 21(d)), the plurality of first through holes are arranged at the vertices of the ends of the virtual rectangle, and the base comprises a frame portion (for example, a diaphragm support portion 831 shown in Figures 20 and 23(a)) formed to match the shape of the first member (for example, the outer edge portion 813a of the diaphragm 813 of the speaker 810).

[0434] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, the first through-hole is arranged between a plurality of second through-holes, and a virtual rectangle is formed when a virtual straight line is drawn connecting the plurality of first through-holes and the second through-holes adjacent to them. The plurality of first through-holes are arranged at the vertices of the ends of the virtual rectangle, so that the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the base is equipped with a frame formed to match the shape of the first member, the first member can be attached to the base while being securely positioned, allowing for efficient installation work, and the frame also allows the first member to be stably fixed to the base.

[0435] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 810 shown in Figures 20 and 21(c),(d)) that can be fixed to a base (for example, the speaker base 830 shown in Figures 20 and 23), and a second member (for example, the rear cover 820 shown in Figures 20 and 21(a),(b)) that can cover at least a part of the first member, wherein the first member comprises a plurality of first through holes (for example, dedicated screw holes 816a shown in Figure 21(d)) and a plurality of second through holes different from the first through holes (for example, shared screw holes 816b shown in Figure 21(d)), the second member comprises a plurality of third through holes (for example, screw holes 824 shown in Figure 21(b)), and the first through holes are connected to the first member and the second member, the first member The game machine is characterized in that, with respect to the base, the through holes are used when fixing the first member and the second member to the base, and the second and third through holes are used when fixing both the first member and the second member to the base, and when the plurality of first through holes and the second through holes adjacent to the plurality of first through holes are connected by a virtual straight line (for example, the straight line VL shown in Figure 21(d)), a virtual quadrilateral (for example, the quadrilateral VQ shown in Figure 21(d)) is formed, and the plurality of first through holes are arranged at the vertices of the ends of the diagonals of the virtual quadrilateral, and when the first member and the second member are fixed to the base, a part of the second member abuts against a support provided on the base, thereby forming a space between the second member and the base.

[0436] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, the first through-hole is arranged between a plurality of second through-holes, and a virtual quadrilateral is formed when a virtual straight line is drawn connecting the plurality of first through-holes and the second through-holes adjacent to them. The plurality of first through-holes are arranged at the vertices of the ends of the diagonals of the virtual quadrilateral, so that the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the first member and the second member are fixed to the base, and a part of the second member abuts against a support provided on the base, a space is formed between the second member and the base. Therefore, even if the first member has wiring or the like, the wiring or the like can be routed to the outside through the space, thereby increasing the design flexibility.

[0437] Furthermore, the gaming machine according to this embodiment (for example, the slot machine 100 shown in Figure 1) comprises a first member (for example, the speaker 810 shown in Figures 20 and 21(c),(d)) that can be fixed to a base (for example, the speaker base 830 shown in Figures 20 and 23), and a second member (for example, the rear cover 820 shown in Figures 20 and 21(a),(b)) that can cover at least a part of the first member, wherein the first member has a plurality of first through holes (e.g. For example, the second member has a dedicated screw hole 816a) shown in Figure 21(d) and a plurality of second through holes different from the first through hole (for example, a common screw hole 816b shown in Figure 21(d)), the second member has a plurality of third through holes (for example, a screw hole 824 shown in Figure 21(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, and the second and third through holes are the first The game machine is characterized in that, when the plurality of first through holes and the second through holes adjacent to the plurality of first through holes are connected by a virtual straight line (for example, the straight line VL shown in Figure 21(d)), a virtual quadrilateral (for example, the quadrilateral VQ shown in Figure 21(d)) is formed, the plurality of first through holes are arranged at the vertices of the ends of the diagonals of the virtual quadrilateral, the base is configured to include a frame portion (for example, the diaphragm support portion 831 shown in Figures 20 and 23(a)) formed to match the shape of the first member (for example, the outer edge portion 813a of the diaphragm 813 of the speaker 810), and when 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, thereby forming a space between the second member and the base.

[0438] According to the gaming machine of this embodiment, when fixing the first member and the second member to the base, it is possible to fix them in one step through the second through-hole of the first member and the third through-hole of the second member, thus simplifying the member installation work compared to conventional methods, and allowing the two first and second members to be stably fixed. Furthermore, since the second member can be fixed to the base after the first member has been fixed and positioned to the base using the first through-hole, it is not necessary to position the two members simultaneously, thereby increasing work efficiency. In addition, the first through-hole is arranged between a plurality of second through-holes, and a virtual quadrilateral is formed when a virtual straight line is drawn connecting the plurality of first through-holes and the second through-holes adjacent to them. The plurality of first through-holes are arranged at the vertices of the ends of the diagonals of the virtual quadrilateral, so that the two first and second members can be stably fixed by the second through-holes located on both sides of the first through-hole. Furthermore, since the base is equipped with a frame formed to match the shape of the first member, the first member can be attached to the base in a secure position, allowing for efficient installation work, and the frame can stably fix the first member to the base. In addition, with the first and second members fixed to the base, a part of the second member abuts against a support provided on the base, creating a space between the second member and the base. Therefore, even if the first member has wiring, the wiring can be routed to the outside through this space, increasing the design flexibility.

[0439] Furthermore, the first member is configured to be fixable to the base by a first fixing means (for example, a screw 840 shown in Figures 20(a) and 23(d)) and a second fixing means (for example, a screw 840 shown in Figures 20(a) and 23(d)), and the second member is configured to be fixable to the base by the second fixing means. In the state in which 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 not 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.

[0440] With this configuration, even when the second component is positioned relative to the base, the first through-hole of the first component will not be obscured by the second component, allowing for efficient installation. Furthermore, even if the first and second components are first fixed to the base using the second and third through-holes, it becomes possible to subsequently fix the first component using the first through-hole, thus improving the convenience of the installation process.

[0441] Furthermore, the second member may be provided with a plurality of fourth through holes (for example, through holes 825 shown in Figures 21(b) and 23(d)), wherein the third through hole is located in the first state at a position corresponding to the second through hole of the first member, and the fourth through hole is located in the first state at a position corresponding to the first through hole of the first member, and the size of the fourth through hole is larger than the size of the third through hole, and the second fixing means may be visible through the fourth through hole in the first state.

[0442] With this configuration, when the first and second members are correctly attached to the base and the first member is covered by the second member, the fixing means attached to the first through-hole of the first member can be housed inside the fourth through-hole, and the fixing means does not interfere with the second member. Therefore, the positional relationship between the fourth through-hole and the fixing means makes it easy to visually confirm that the second member is attached in the correct position relative to the first member, allowing for accurate positioning of the second member relative to the first member. Furthermore, when the second member is accurately positioned relative to the first member, the fixing means is housed inside the fourth through-hole, and the movement of the second member is restricted by the fixing means, thus preventing misalignment or rattling of the second member during installation. In addition, since the fixing means is visible through the third and fourth through-holes, even if a fraudster were to consider removing the first or second member, it would appear to take a long time to remove them, thus preventing fraudulent activity.

[0443] Furthermore, the device may be configured such that, 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 is positioned relative 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 are fixed to the base by the second fixing means. Alternatively, the device may be configured such that, with the third through-hole of the second member positioned relative to the second through-hole of the first member, the second through-hole of the first member and the third through-hole of the second member are fixed to the base by the second fixing means, and then the first through-hole of the first member is fixed to the base by the first fixing means.

[0444] With this configuration, workers can select the most appropriate mounting method from among several options based on their skill level, thereby improving work efficiency.

[0445] <Speaker mounting structure (modified version 3) / Speaker unit configuration> Next, the configuration of the speaker unit 850 according to Modification 3 will be explained using Figure 24. Figure 24(a) is an exploded perspective view of the speaker unit 850 according to Modification 3, and Figure 24(b) is an external perspective view showing two speaker units 850 mounted on the lower back of the front door 102.

[0446] As shown in Figure 24(a), the speaker unit 850 according to the modified example 3 consists of a speaker 860 (first component) for bass output having a large diaphragm and a rear cover 870 (second component) that covers the rear side of the speaker 860, and is mounted on a speaker base 880 (left speaker base 880L, right speaker base 880R) located on the lower rear side of the front door 102 (base) of the slot machine.

[0447] On the lower rear side of the front door 102, a left speaker base 880L and a right speaker base 880R are arranged horizontally at a predetermined distance apart, and a speaker unit 850 can be attached to each of the left speaker base 880L and the right speaker base 880R.

[0448] Specifically, in the left speaker base section 880L (first area), located to the left of the front door 102 when viewed from the rear, the speaker unit 850 is mounted such that the box-shaped space 872S of the rear cover 870 and the lead terminals 866 of the speaker 860 face to the right when viewed from the rear, and the lead wires 867 of the speaker 860 are drawn out from the right side (first orientation; hereafter sometimes referred to as the "rightward direction").

[0449] On the other hand, in the right speaker base section 880R (second area), which is located to the right of the front door 102 when viewed from the rear, the speaker unit 850 is mounted with the box-shaped space 872S of the rear cover 870 and the lead terminals 866 of the speaker 860 facing to the left when viewed from the rear, and the lead wires 867 of the speaker 860 coming out from the left side (second orientation; hereafter sometimes referred to as the "leftward direction").

[0450] In other words, in this example, the first member (speaker 860) and the second member (rear cover 870) can be attached to the base (front door 102) in either a first orientation (facing right) or a second orientation (facing left) obtained by rotating the first member (speaker 860) and the second member (rear cover 870) circumferentially by 180 degrees relative to the first orientation. The first member (speaker 860) and the second member (rear cover 870) can be attached to the first area (left speaker base 880L) in the first orientation (facing right), and can be attached to the second area (right speaker base 880R) in the second orientation (facing left).

[0451] In this example, the first component (speaker 860) and the second component (rear cover 870) can be attached to the base (front door 102) in at least two orientations, thus increasing the degree of freedom in attaching the first component (speaker 860) and the second component (rear cover 870), allowing them to be attached in accordance with the structure and specifications of the gaming machine.

[0452] Furthermore, in this example, the first component (speaker 860) and the second component (rear cover 870) in the first orientation (rightward) can be attached to the first area (left speaker base 880L) but cannot be attached to the second area (right speaker base 880R), and the first component (speaker 860) and the second component (rear cover 870) in the second orientation can be attached to the second area (right speaker base 880R) but cannot be attached to the first area (left speaker base 880L).

[0453] In this example, the degree of flexibility in attaching the first component (speaker 860) and the second component (back cover 870) can be increased, allowing them to be attached according to the structure and specifications of the gaming machine, and preventing attachment errors.

[0454] As shown in Figure 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 pulled out to the outside through an opening formed on the front of the box-shaped space 872S, are routed along the back 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 or the second sub-control unit 500 described using Figure 3) located above the front door 102.

[0455] In this example, the first component (speaker 860) and the second component (rear cover 870) attached to the first region (left speaker base 880L) are positioned opposite to the first component (speaker 860) and the second component (rear cover 870) attached to the second region (right speaker base 880R) (one speaker unit 850 is attached facing right, while the other speaker unit 850 is attached facing left, facing the first speaker unit 850). As shown in Figure 24(b), the lead wires 867 of each first component (speaker 860) can be pulled out toward the center of the rear of the base (front door 102), making wiring easier, improving the efficiency of wiring work, and allowing the wiring to be neatly stored, thus improving maintainability.

[0456] The manner in which the speaker 860's lead wires 867 are routed is not limited to this example. For example, they may be routed through the inner space of the box-shaped space 872S of the rear cover 870, out through the space formed between the rear cover 870 and the front door 102, wired along the back of the front door 102, and electrically connected to the sound output control means located above the front door 102.

[0457] Furthermore, when applied to gaming machines where it is difficult to secure space above the speaker unit 850 (for example, slot machines where a hopper or medal selector is located above the speaker unit 850, or pachinko machines where a lower tray is located above the speaker unit 850), the lead wires 867 of the speaker 860 can be routed to avoid other devices located above the speaker unit 850, thereby improving the efficiency of wiring work and making effective use of the limited space behind the front door 102.

[0458] In this example, two speaker units 850 are shown arranged horizontally on the back of the front door 102, but three or more speaker units 850 may be arranged, or the speaker units 850 may be arranged vertically or diagonally on the back of the front door 102.

[0459] Furthermore, the length of the lead wire 867 of the speaker 860 is not particularly limited, and it is sufficient that it is long enough to electrically connect 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 as explained using Figure 3). However, if the length is set to the minimum required when the speaker unit 850 is mounted facing left or right, and the speaker unit 850 is mounted facing downward (in a direction where the box-shaped space 872S of the rear cover 870 or the lead terminal 866 of the speaker 860 faces downward when viewed from the rear), the length of the lead wire 867 will be insufficient to connect to the sound output control means, the mounting direction of the speaker unit 850 can be intentionally restricted, and mounting errors of the speaker unit 850 in the gaming machine can be prevented.

[0460] Furthermore, the "first orientation" according to the present invention is not limited to the rightward direction, but may be, for example, the downward direction (where the box-shaped space 872S of the rear cover 870 and the lead terminal 866 of the speaker 860 face downward when viewed from the rear, and the lead wire 867 of the speaker 860 is pulled out from the bottom), the upward direction (where the box-shaped space 872S of the rear cover 870 and the lead terminal 866 of the speaker 860 face upward when viewed from the rear, and the lead wire 867 of the speaker 860 is pulled out from the top), or any other direction. Furthermore, the "second orientation" according to the present invention is not limited to the leftward direction, but may be the downward or upward direction described above, or any other direction.

[0461] Furthermore, the orientation of the speaker 860 and the rear cover 870 (first orientation, second orientation) may be changed according to the direction in which the lead wire 867 of the speaker 860 is pulled out. Also, the position of the mounting sleeves 882 of the left speaker base 880L and the right speaker base 880R, which will be described later, may be changed as appropriate according to the orientation of the speaker 860 and the rear cover 870 (first orientation, second orientation) and the position of the holes provided in each.

[0462] <Speaker mounting structure (modified version 3) / Speaker base section> As shown in Figure 24(a), the left speaker base 880L and the right speaker base 880R are composed of an annular diaphragm support portion 881 that supports the outer edge of the diaphragm 863 of the speaker 860 (see Figure 25(c), etc.) (the part that supports the outer edge of the cone of the diaphragm 863), a cylindrical mounting sleeve 882 for screwing the speaker 860 and the rear cover 870 to the front door 102, and a disc-shaped sound hole plate 884 that fits inside the diaphragm support portion 881.

[0463] <Speaker mounting structure (modified version 3) / metal plate> A rectangular metal plate 885 (a third component) is erected between the left speaker base 880L and the right speaker base 880R on the rear surface of the front door 102. Since this metal plate 885 is positioned on the front door 102 (a metal frame), it functions as a frame ground component. For the sake of explanation, in Figure 24(a), a portion of the metal plate 885 is shown transparently, while in Figure 24(b), it is omitted from the illustration.

[0464] As shown in Figure 24(a), the metal plate 885 has a circular eighth through hole 885a8 (eighth hole) and a tenth through hole 885a10 (tenth hole) formed therein.

[0465] The eighth through-hole 885a8 (eighth hole) is a through-hole for fixing the first member (speaker 860) in the first orientation (facing right) to the metal plate 885, and the tenth through-hole 885a10 (tenth hole) is a through-hole for fixing the first member (speaker 860) in the second orientation (facing left) to the metal plate 885 (details will be described later using Figures 25 to 28).

[0466] <Speaker mounting structure (modified version 3) / Speaker, rear cover> Next, using Figures 25 to 28, we will explain in detail the speaker 860 and rear cover 870 that constitute the speaker unit 850 according to the modified example 3.

[0467] Figure 25(a) is a side view of the rear cover 870, and Figure 25(b) is a top view of the rear cover 870. Also, Figure 25(c) is a side view of the speaker 860, and Figure 25(d) is a top view of the speaker 860.

[0468] Furthermore, Figure 26 is a rear view of the front door 102, showing the speaker 860 and rear cover 870 positioned relative to the front door 102, and Figure 27 is a rear view of the front door 102, showing the speaker 860 and rear cover 870 attached to the front door 102 with screws.

[0469] Furthermore, Figure 28(a) is a side view of the speaker unit 850 mounted on the left speaker base 880L, viewed from the left side of the rear, and Figure 28(b) is a side view of the speaker unit 850 mounted on the left speaker base 880L, viewed from the right side of the rear.

[0470] <Speaker mounting structure (modified version 3) / Speaker> Next, we will explain speaker 860 (the first component).

[0471] The speaker 860 (first component) is a cone-type dynamic speaker, and as shown in Figure 25(c), it is generally composed of a voice coil and a magnet, and comprises an electromagnetic circuit 861 that vibrates a diaphragm 863 (described later) in response to an electrical signal, a frame 862 that supports the electromagnetic circuit 861, a diaphragm 863 that vibrates to generate sound, a flat flange 864 to which the diaphragm 863 is fixed so as to be able to vibrate, a lead terminal 866 disposed on the flange 864, and a lead wire 867 that is detachably connected to the lead terminal 866.

[0472] The frame 862 is a cylindrical metal ring frame that widens slightly towards the front, and multiple openings 865 (see Figure 24) are formed along the circumference on its side to allow air to escape from around the diaphragm 863. That is, multiple openings 855 are formed along the circumference on the side of the frame 862, and support columns 862a (see Figure 24) are formed between the openings 865 along the front-to-back direction. The diaphragm 863 is formed in a cone shape that opens towards the front, using a flexible material such as paper.

[0473] The electromagnetic circuit 861 is marked with a predetermined marking 876 (in this example, a part number and material). The form of the predetermined marking 876 is not particularly limited, but in this example, the surface of the electromagnetic circuit 861 is engraved with a part number marking representing the part number of the speaker 860 (in this example, the string "SPxxxx") and a material marking representing the material of the speaker 860 (in this example, the string "AL").

[0474] In this example, since the speaker 860 is marked with a predetermined indicator 876, the orientation of the speaker 860 (the first orientation or the second orientation mentioned above) can be easily identified by the orientation of this predetermined indicator 876, thereby improving convenience when installing the speaker 860.

[0475] <Speaker mounting structure (modified example 3) / Speaker / 1st and 4th through-holes> As shown in Figure 25(d), an elliptical first through-hole 864a1 (first hole) is formed in the lower left corner of the outer end of the flange 864 of the speaker 860.

[0476] As shown in Figure 27, this first through-hole 864a1 (first hole) is used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (left speaker base portion 880L of the front door 102) in the first orientation (facing right), but is not used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102) in the second orientation (facing left).

[0477] In other words, the first through-hole 864a1 (first hole) is a hole that may or may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102).

[0478] In this example, the first through-hole 864a1 (first hole) may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102). Therefore, the installation work for the first component (speaker 860) and the second component (rear cover 870) can be simplified, and work efficiency can be improved.

[0479] Furthermore, an identifier (for example, by printing letters or symbols near the first hole, forming a protrusion or other part near the first hole, or attaching a seal near the first hole) may be provided to distinguish 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 a hole that is not used. The member on which the identifier is provided may be the first member, the second member, the third member, or the base, or any other member. The same applies to the through-hole described below.

[0480] In this example, by providing 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, it is possible to prevent installation errors when attaching the first member and / or the second member to the base, and to improve work efficiency.

[0481] An elliptical fourth through-hole 864a4 (fourth hole) is formed in the upper left corner of the outer end of the flange 864 of the speaker 860.

[0482] As shown in Figure 27, this fourth through-hole 864a4 (fourth hole) is not used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (left speaker base portion 880L of the front door 102) in the first orientation (facing right), but is used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102) in the second orientation (facing left).

[0483] In other words, the fourth through-hole 864a4 (fourth hole) is a hole that may or may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102).

[0484] In this example, the fourth through-hole 864a4 (fourth hole) may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102). Therefore, the installation work for the first component (speaker 860) and the second component (rear cover 870) can be simplified, and work efficiency can be improved.

[0485] In this example, the first hole (first through-hole 864a1) and the fourth hole (fourth through-hole 864a4) of the first member (speaker 860) are positioned at locations that are approximately symmetrical with respect to a virtual line VL3 (see Figure 25(d)) passing through the center of the first member (speaker 860) (positions where the shortest distance from the virtual line VL3 is approximately equal).

[0486] <Speaker mounting structure (modified version 3) / Speaker / 7th and 9th through-holes> An elliptical seventh through-hole 864a7 (seventh hole) is formed in the lower right corner of the outer end of the flange 864 of the speaker 860.

[0487] As shown in Figure 27, this seventh through-hole 864a7 (seventh hole) is used when attaching the first member (speaker 860) to the third member (metal plate 885) in the first orientation (facing right), but is not used when attaching the first member (speaker 860) to the base (right speaker base portion 880R of the front door 102) or the third member (metal plate 885) in the second orientation (facing left).

[0488] In other words, the seventh through-hole 864a7 (seventh hole) is a hole that may or may not be used when attaching the first component (speaker 860) to the base (front door 102) or the third component (metal plate 885), and unlike the first through-hole 864a1 and the fourth through-hole 864a4, it is a hole that is not used when attaching the second component (rear cover 870).

[0489] The seventh through-hole 864a7 (the seventh hole) may also be used when attaching the first member (speaker 860) to the base (left speaker base portion 880L of the front door 102) in the first orientation (facing right).

[0490] An elliptical ninth through-hole 864a9 (ninth hole) is formed in the upper right corner of the outer end of the flange 864 of the speaker 860.

[0491] As shown in Figure 27, this ninth through-hole 864a9 (ninth hole) is not used when attaching the first component (speaker 860) to the base (left speaker base portion 880L of the front door 102) or the third component (metal plate 885) in the first orientation (facing right), and is used when attaching the first component (speaker 860) to the third component (metal plate 885) in the second orientation (facing left). Unlike the first through-hole 864a1 and the fourth through-hole 864a4, this hole is not used when attaching the second component (rear cover 870).

[0492] In other words, the ninth through-hole 864a9 (the ninth hole) is a hole that may or may not be used when attaching the first component (speaker 860) to the base (front door 102) or the third component (metal plate 885).

[0493] The ninth through-hole 864a9 (the ninth hole) may also be used when attaching the first component (speaker 860) to the base (right speaker base portion 880R of the front door 102) in the second orientation (facing left).

[0494] 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 positioned at locations that are approximately symmetrical with respect to a virtual line VL3 (see Figure 25(d)) passing through the center of the first member (speaker 860) (positions where the shortest distance from the virtual line VL3 is approximately equal).

[0495] <Speaker mounting structure (modified version 3) / Speaker / 1st, 4th, 7th, and 9th through-holes> As shown in Figure 25(d), when the four through holes, 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 positioned on the (first) diagonal (the vertices at the ends of the diagonals) of the virtual quadrilateral VQ, while the fourth through hole 864a4 and the seventh through hole 864a7 are positioned on the second diagonal (different from the first diagonal) of the virtual quadrilateral VQ4 (the vertices at the ends of the diagonals).

[0496] The size and shape of the four through-holes, 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 Figure 26, the four through-holes, the first through-hole 864a1, the fourth through-hole 864a4, the seventh through-hole 864a7, and the ninth through-hole 864a9, are elliptical holes with a larger outer diameter than the circular second through-hole 872a2 and the fifth through-hole 872a5 of the back cover 870.

[0497] In this example, the four through holes, the first through hole 864a1, the fourth through hole 864a4, the seventh through hole 864a7, and the ninth through hole 864a9, are composed of elliptical holes with larger outer diameters than the circular second through hole 872a2 and the fifth through hole 872a5 of the rear cover 870. Therefore, assembly errors of the rear cover 870 relative to the speaker 860 (misalignment of the rear cover 870) can be absorbed, and the installation work can be simplified.

[0498] <Speaker mounting structure (modified version 3) / rear cover> Next, we will explain the rear cover 870 (the second component).

[0499] The rear cover 870 (second component) is a colored, transparent resin component capable of housing the speaker 860 inside, and is made of a material that allows the speaker 860 to be visible from the outside when it is housed inside.

[0500] In this example, since at least a portion of the speaker 860 can be seen through the rear cover 870, the installation of the speaker unit 850 can be performed while confirming the positional relationship between the speaker 860 and the rear cover 870, thereby improving the convenience of the installation work.

[0501] The back cover 870 may be made of any transparent material, and its material is not limited to a colored transparent resin. For example, it may be made of colorless transparent (or translucent) plastic, acrylic, polycarbonate, polyvinyl chloride, glass, metal, etc.

[0502] Furthermore, the shape of the rear cover 870 is not particularly limited, but at least a portion of it may have a shape (for example, a grid shape or a maze shape) that can prevent foreign matter such as dust and dirt from entering and adhering to the speaker 860. In addition, guide parts (hooks, etc.) for guiding the lead wires 867 (wiring) of the speaker 860 and the ground wire connecting the speaker 860 and the metal plate 885 (frame ground) to predetermined positions may be formed on the rear cover 870, or such guide parts may be configured to be retrofitted to the rear cover 870.

[0503] As shown in Figures 25(a) and (b), the rear cover 870 has an annular cover portion 871 formed on the rear side that covers a part of the rear end of the speaker 860, and a cylindrical side wall portion 872 that widens slightly toward the rear, with this cover portion 871 as the base end.

[0504] <Speaker mounting structure (modified version 3) / rear cover / 2nd and 5th through-holes> A circular second through-hole 872a2 (second hole) is formed in the lower left corner of the outer end of the side wall portion 872 of the rear cover 870.

[0505] As shown in Figure 27, this second through-hole 872a2 (second hole) is used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (left speaker base portion 880L of the front door 102) in the first orientation (facing right), but is not used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102) in the second orientation (facing left).

[0506] In other words, the second through-hole 872a2 (second hole) is a hole that may or may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102).

[0507] In this example, the second through-hole 872a2 (second hole) may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102). Therefore, the installation work for the first component (speaker 860) and the second component (rear cover 870) can be simplified, and work efficiency can be improved.

[0508] A circular fifth through-hole 872a5 (fifth hole) is formed in the upper left corner of the outer end of the side wall portion 872 of the rear cover 870.

[0509] As shown in Figure 27, this fifth through-hole 872a5 (fifth hole) is not used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (left speaker base portion 880L of the front door 102) in the first orientation (facing right), but is used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102) in the second orientation (facing left).

[0510] In other words, the fifth through-hole 872a5 (the fifth hole) is a hole that may or may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102).

[0511] In this example, the fifth through-hole 872a5 (fifth hole) may not be used when attaching the first component (speaker 860) and the second component (rear cover 870) to the base (front door 102). Therefore, the installation work for the first component (speaker 860) and the second component (rear cover 870) can be simplified, and work efficiency can be improved.

[0512] In this example, the second hole (second through-hole 872a2) and the fifth hole (fifth through-hole 872a5) of the second member (back cover 870) are positioned approximately symmetrically with respect to a virtual line VL5 (see Figure 25(b)) passing through the center of the second member (back cover 870) (positions where the shortest distance from the virtual line VL5 is approximately equal).

[0513] <Speaker mounting structure (modified version 3) / rear cover / 3rd and 6th through-holes> As shown in Figure 25(b), the rear cover 870 includes a left protruding piece 873 that protrudes outward to the left from the outer edge of the side wall portion 872, and a right protruding piece 874 that protrudes outward to the right from the outer edge of the side wall portion 872.

[0514] Above the left protruding piece 873 and the right protruding piece 874 of the rear cover 870, a circular third through-hole 873a3 (third hole) is formed.

[0515] As shown in Figure 27, this third through-hole 873a3 (third hole) is used when attaching the second component (rear cover 870) to the base (left speaker base portion 880L of the front door 102) in the first orientation (facing right), but is not used when attaching the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102) in the second orientation (facing left).

[0516] In other words, the third through-hole 873a3 (third hole) is a hole that may or may not be used when attaching the second component (rear cover 870) to the base (front door 102).

[0517] In this example, the third through-hole 873a3 (third hole) may not be used when attaching the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102), which may simplify the installation work of the second component (rear cover 870) and improve work efficiency.

[0518] In addition, one of the two third through holes 873a3 (third holes) may be used as a hole when attaching to the third member (metal plate 885).

[0519] Below the left protruding piece 873 and the right protruding piece 874 of the rear cover 870, a circular sixth through-hole 873a6 (sixth hole) is formed.

[0520] As shown in Figure 27, this sixth through-hole 873a6 (sixth hole) is a hole that is not used when attaching the second component (rear cover 870) to the base (left speaker base portion 880L of the front door 102) in the first orientation (facing right), but is a hole that is used when attaching the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102) in the second orientation (facing left).

[0521] In other words, the sixth through-hole 873a6 (sixth hole) is a hole that may or may not be used when attaching the second component (rear cover 870) to the base (front door 102).

[0522] In this example, the sixth through-hole 873a6 (sixth hole) may not be used when attaching the second component (rear cover 870) to the base (right speaker base portion 880R of the front door 102), which may simplify the installation work of the second component (rear cover 870) and improve work efficiency.

[0523] In addition, one of the two sixth through holes 873a6 (sixth holes) may be used as a hole when attaching the third member (metal plate 885).

[0524] In this example, the third hole (third through-hole 873a3) and the sixth hole (sixth through-hole 873a6) of the second member (back cover 870) are positioned approximately symmetrically with respect to a virtual line VL5 (see Figure 25(b)) passing through the center of the second member (back cover 870) (positions where the shortest distance from virtual line VL5 is approximately equal).

[0525] The cover portion 871 of the rear cover 870 is marked with a predetermined marking 877 (in this example, the part number and material). The form of the predetermined marking 877 is not particularly limited, but in this example, the surface of the cover portion 871 is engraved with a part number marking representing the part number of the rear cover 870 (in this example, the string "CVxxxx") and a material marking representing the material of the rear cover 870 (in this example, the string "PC").

[0526] In this example, since the rear cover 870 is marked with a predetermined indicator 877, the orientation of the rear cover 870 (the first orientation and the second orientation mentioned above) can be easily identified by the orientation of this predetermined indicator 877, thereby improving convenience when installing the rear cover 870.

[0527] In particular, since the predetermined marking 877 is applied to the cover portion 871 in an area closer to the third through-hole 873a3 (third hole) than to the sixth through-hole 873a6 (sixth hole) (an area above the imaginary line VL5 passing through the center of the rear cover 870), it becomes possible to recognize, using the predetermined marking 877 as a clue, that the third through-hole 873a3 (third hole) is a hole used when attaching the second component (rear cover 870) to the base (left speaker base portion 880L of the front door 102) or the third component (metal plate 885) in the first orientation (facing right), thereby further improving convenience when attaching the rear cover 870, etc.

[0528] <Speaker mounting structure (modified version 3) / rear cover / box-shaped space> As shown in Figure 25(b), a box-shaped space 872S (space) is formed protruding from the right outer edge of the rear cover 870 in a top view, for housing the lead terminals 866 of the speaker 860 and for leading the lead wires 867 to the outside of the speaker unit 850.

[0529] With this configuration, when 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 Figures 26 and 27, the speaker 860's lead wires 867 (wiring) can be pulled out to the outside of the speaker 860 and the rear cover 870 through this space.

[0530] In this example, even when the rear cover 870 covers part of the speaker 860, the speaker 860's lead wires 867 (wiring) can be brought out to the outside, increasing the design flexibility.

[0531] In this example, the lead wire 867 is routed through the inner space of the box-shaped space 872S in the rear cover 870 and out through an opening formed on the front of the box-shaped space 872S. However, for example, a space may be formed between the speaker 860 and the front door 102, and the lead wire 867 may be routed from the front of the speaker 860 through this space towards the front door 102. In this case, the box-shaped space 872S does not need to be formed in the rear cover 870.

[0532] <Speaker mounting structure (modified version 3) / mounting method> Next, we will explain how to install the speaker unit 850.

[0533] As shown in Figures 27 and 28(a), the first member (speaker 860) and the second member (rear cover 870), both facing to the right, are attached to the base (mounting sleeve 882 of the left speaker base portion 880L of the front door 102) by fixing means (screws 890) that pass through 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).

[0534] In this example, the first hole (first through-hole 864a1) of the first component (speaker 860) and the second hole (second through-hole 872a2) of the second component (rear cover 870) can be fixed in one step, thus simplifying the component installation work compared to conventional methods, and allowing the two first components (speaker 860) and second components (rear cover 870) to be stably fixed.

[0535] Furthermore, the second member (rear cover 870) in the first orientation (facing right) is attached to the base (mounting sleeve 882 of the left speaker base portion 880L of the front door 102) by fixing means (screw 890) that pass through the third hole (third through hole 873a3) of the second member (rear cover 870).

[0536] The first member (speaker 860) and the second member (rear cover 870), both facing to the right, are mounted vertically along the base (front door 102). 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 positioned below a virtual line VL6 (see Figure 27) that passes 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).

[0537] In this example, the first component (speaker 860) and the second component (rear cover 870) can be fixed vertically downward to the base (left speaker base portion 880L of the front door 102), thereby allowing the two first components (speaker 860) and second components (rear cover 870) to be stably fixed.

[0538] Furthermore, as shown in Figures 27 and 28(b), the second member (rear cover 870) in the first orientation (facing right) is attached to the base (mounting sleeve 882 of the left speaker base portion 880L of the front door 102) by fixing means (screw 890) that pass through the third hole (third through hole 873a3) of the second member (rear cover 870), and the first member (speaker 860) in the first orientation (facing right) is attached to the eighth through hole 885a8 (eighth hole) of the third member (metal plate 885) by fixing means (screw 890) that pass through the seventh hole (seventh through hole 864a7) of the first member (speaker 860). As a result, the first member (speaker 860) in the first orientation (facing right) is grounded.

[0539] When the right-facing speaker 860 and rear cover 870 are attached to the left speaker base portion 880L of the front door 102, most of the speaker 860 is housed within 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 portion of the speaker 860 and the rear cover 870) are in contact (or close to) each other.

[0540] In this example, the second component (rear cover 870), when attached to the base (left speaker base portion 880L of the front door 102), is fixed so that at least a portion of it abuts (or is in close proximity to) the first component (speaker 860) and covers at least a portion of the first component (speaker 860), thereby enabling stable fixing of the two first components (speakers 860) and the second component (rear cover 870).

[0541] On the other hand, as shown in Figure 27, the first member (speaker 860) and the second member (rear cover 870) in the second orientation (left) are attached to the base (mounting sleeve 882 of the right speaker base portion 880R of the front door 102) by fixing means (screws 890) that pass 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).

[0542] Furthermore, the second member (rear cover 870) in the second orientation (facing left) is attached to the base (mounting sleeve 882 of the right speaker base portion 880R of the front door 102) by fixing means (screw 890) that pass through the sixth hole (sixth through hole 873a6) of the second member (rear cover 870).

[0543] The first member (speaker 860) and the second member (rear cover 870) in the second orientation (facing left) are mounted 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 positioned below a virtual line VL6 (see Figure 27) that passes 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).

[0544] In this example, the first component (speaker 860) and the second component (rear cover 870) can be fixed vertically downward to the base (right speaker base portion 880R of the front door 102), thereby allowing the two first components (speaker 860) and second components (rear cover 870) to be stably fixed.

[0545] Furthermore, as shown in Figure 27, the second member (rear cover 870) in the second orientation (leftward) is attached to the base (mounting sleeve 882 of the right speaker base 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 orientation (leftward) is attached to the tenth through hole 885a10 (tenth hole) of the third member (metal plate 885) by fixing means (screw 890) passing through the ninth hole (ninth through hole 864a9) of the first member (speaker 860). As a result, the first member (speaker 860) in the second orientation (leftward) is grounded.

[0546] When the left-facing speaker 860 and rear cover 870 are attached to the right speaker base portion 880R of the front door 102, most of the speaker 860 is housed within 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 portion of the speaker 860 and the rear cover 870) are in contact (or close to) each other.

[0547] In this example, the second component (rear cover 870), when attached to the base (right speaker base portion 880R of the front door 102), is fixed so that at least a portion of it abuts (or is in close proximity to) the first component (speaker 860) and covers at least a portion of the first component (speaker 860), thereby enabling stable fixing of the two first components (speakers 860) and the second component (rear cover 870).

[0548] In this example, both the speaker 860 and the rear cover 870 are shown to be fixed to the front door 102 with screws. However, it is also possible to attach the speaker 860 and the rear cover 870 to the front door 102 using all (or some) of the through-holes of the rear cover 870, with the speaker 860 housed in the inner space of the rear cover 870, without fixing the speaker 860 to the front door 102 (without using the through-holes of the speaker 860).

[0549] In this example, since it is not necessary to fix the speaker 860 to the front door 102, the installation work of the speaker unit 850 can be simplified, and ...

Claims

1. The first stop button, The second stop button, A gaming machine equipped with, It is configured to be able to transition at least between a normal state and a first advantageous state which is more advantageous than the normal state, In the aforementioned normal state of non-navigation gameplay, if the first stop button is operated for the first time (hereinafter referred to as "the first case"), the system is configured to enable the first notification. In the first advantageous state, when the first stop button is operated for the first time during non-navigation gameplay (hereinafter referred to as "the second case"), the system is configured to enable the first notification. The first notification is a notification recommending that the second stop button be pressed first. A gaming machine characterized by the following features.

2. A gaming machine according to claim 1, In the next game in the first case, the first control is configured to be executed. In the second case, the system is configured to execute the second control during the next game. The first control described above is a control that is disadvantageous to the player compared to the operation performed in accordance with the first notification, The second control is a control that is disadvantageous to the player compared to the operation performed in accordance with the first notification. The first control is a different control from the second control. A gaming machine characterized by the following features.

3. A gaming machine according to claim 1 or 2, It is configured to be able to transition to a second advantageous state which is more advantageous than the first advantageous state, In the second advantageous state, when the first stop button is operated for the first time during non-navigation gameplay (hereinafter referred to as the "third case"), the first notification is configured to be executable. A gaming machine characterized by the following features.

4. The gaming machine according to claim 3, In the third case described above, in the next game, no control is executed that would be disadvantageous to the player compared to the operation performed in accordance with the first notification. A gaming machine characterized by the following features.

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