JP4854321B2 - Game sound equipment - Google Patents

Description

  The present invention relates to a game sound apparatus capable of easily and appropriately tuning sound in a bass reflex duct section.

A game acoustic device having the following structure is known. One of them is a structure in which a speaker structure in which a speaker and an enclosure are integrated is provided on the back side of a gaming machine frame, and the sound of the enclosure is guided and released to the front side of the gaming machine frame by a pipe. In this case, a pipe is required in addition to the speaker structure, and there is a disadvantage that the structure becomes complicated. The other is a structure in which the glass of the front door is used as a diaphragm. In this case, since the resonance frequency of the glass is several hundreds of hertz, there is a disadvantage that it is not suitable for use for low-frequency reproduction. The other is a structure in which a piezoelectric speaker is in contact with the glass of the front door. In this case, since the resonance frequency of the glass is several hundred hertz, it is not suitable for use as a bass reproduction. There is. The last one is a structure in which a piezoelectric speaker is attached to the front door. In this case, since the resonance frequency of the glass is several hundred hertz, there is a drawback that it is not suitable for use in low-frequency sound reproduction. is there.
JP 2004-229183 A Japanese Patent Laid-Open No. 7-8601 JP-A-10-216325 JP 2003-135804 A

  The problem to be solved by the invention is that sound effects cannot be appropriately provided to the front side of the gaming machine frame.

Game sound apparatus according to the present invention has a structure for closing a window therethrough in the front-rear direction front door of the gaming machine frame from the rear side by the panel structure, the panel structure and a rear panel of the window side of the front panel and the rear A closed space surrounded by the front panel, the rear panel and the frame is supported by the frame so as to be opposed to each other in the front-rear direction, and the frame is located outside the rear panel and penetrates in the front-rear direction. a speaker installation part that consists in a cylindrical shape, has a bass speaker that is mounted on the speaker installation portion toward the cone front, a larger outer shape than the front panel and the rear panel, the frame board surrounding the front panel and rear panel And a through hole that communicates with the closed space in the front-rear direction through the frame base, a duct front cover that covers the through hole and prevents sound leakage from the through hole, and communicates with the through hole. A bass reflex opening through the front cover in the longitudinal direction protrudes to the back side from the rear surface of the duct front cover, and the duct wall surrounding the bass reflex opening, transfer of the closed space and the sound by the vibration of air that connects the bass reflex opening mutually A bass reflex duct portion that forms a path, and a front bass door is provided with a cylindrical low sound emission hole portion connected to the bass reflex opening , so that sound emitted from the low sound speaker is placed in the speaker installation portion, the closed space, and the bass reflex duct. The main feature is that the sound is emitted to the front side through the part, the bass reflex opening and the bass sound emitting hole .

  In the game sound device according to the present invention, since the duct front cover provided with the bass reflex opening and the duct wall is formed separately from the frame and attached to the frame, the bass reflex duct can be obtained by replacing the duct front cover. Sound can be easily and properly tuned at the head, and the sound emitted from the bass speaker's cone to the front side is closed from the cylindrical speaker installation part to the front panel, rear panel and frame. A player who plays in the front of the gaming machine frame because the sound is played to the front side of the front door through the bass reflex duct part, the bass reflex opening part and the bass sound emission hole part in order and used as an enclosure. There is an advantage that it is provided appropriately.

  1 to 6 show the best mode for carrying out the invention. FIG. 1 shows the panel structure 27 in an exploded manner. FIG. 2 shows an exploded view of the gaming machine frame 1 and the gaming board 36 of the pachinko gaming machine. FIG. 3 shows the front of the pachinko gaming machine. FIG. 4 shows the front door 4 and the panel structure 27 in an exploded manner. FIG. 5 shows the speaker mounting portion of the panel structure 27 in an exploded manner. FIG. 6 shows a cross section of the gaming sound device provided in the gaming machine frame 1 taken along the line AA shown in FIG. In this specification, the directions of “front”, “front”, “rear”, “back”, “left”, “right”, “upper”, “lower” indicate the gaming machine frame 1 and the state shown in FIG. This is the direction specified when the game board 36 is placed and viewed from the front side indicated by the arrow S. “Previous” and “Table” are in the same direction. “Rear” and “back” are in the same direction.

  The internal structure from the rear side of the panel structure 27 will be described with reference to FIG. The panel structure 27 includes a bass speaker 30, a front panel 52, a rear panel 53, a frame 54, and a bass reflex opening 55. The front panel 52 is provided with an overhang 56 at the upper left. When the front panel 52 and the rear panel 53 indicated by the imaginary line L <b> 1 are overlapped with each other so that the rear surface of the front panel 52 and the front surface of the rear panel 53 overlap each other, the overhanging portion 56 is outside the rear panel 53. Protruding. Therefore, the front panel 52 has a plate shape that is larger than the rear panel 53 only in the protruding portion 56. The frame 54 is made of a light metal such as a synthetic resin, an aluminum alloy, or a magnesium alloy. The frame base 57, the see-through opening 58, the front panel accommodating portion 59, the hinge bracket 60, the hinge pin 61, the latch receiving portion 62, and the speaker installation portion 63 are used. The rear panel housing portion 64, the bass reflex duct portion 65, and the like are integrally formed. The frame base 57 has a larger outer shape than the front panel 52 and the rear panel 53. The see-through opening 58 is similar in shape to the window 24 of FIG. 4 and is provided in the frame base 57 as a through hole in the front-rear direction. The front panel housing portion 59 surrounds the see-through opening 58 and opens to the front surface of the frame base 57 and the see-through opening 58, and is provided in the frame base 57 as a recess from the front surface of the frame base 57 to the inside. It is done. The outer periphery of the front panel housing portion 59 is the same size as the outer periphery of the front panel 52 so that the front panel 52 is taken into the front panel housing portion 59, but the front panel 52 is bonded to the front panel housing portion 59 with an adhesive. In this case, the front panel accommodating portion 59 is larger than the front panel 52 by the thickness of the adhesive. The dimension of the front panel housing portion 59 that is recessed from the front surface of the frame base 57 is the same as the thickness of the front panel 52 in the front-rear direction. When the front panel 52 is mounted on the frame 54 so as to close the front side of the transparent opening 58 from the front side of the frame 54, the peripheral edge portion of the front panel 52 is fitted into the front panel accommodating portion 59 and fixed with an adhesive. .

  The hinge bracket 60 is provided on the left side of the frame 54, protrudes from the left side of the frame 54 to the left side, and is divided into upper and lower parts. The hinge pins 61 are individually provided on the hinge bracket 60 and project downward from the hinge bracket 60. The latch receiving portion 62 is provided on the right side of the frame 54, protrudes from the right side of the frame 54 to the right side, and is divided into upper and lower sides. The speaker installation portion 63 is provided in the upper left part of the frame base 57 in a cylindrical shape that extends in the front-rear direction across the inside and outside of the front panel housing portion 59. A speaker front cover 67 is attached to the front surface of the speaker installation unit 63. As a result, the speaker front cover 67 closes the portion of the speaker installation portion 63 that protrudes outside the frame 54 so as not to leak sound. The speaker front cover 67 is a plate having a size that covers a through hole in a portion of the speaker installation portion 63 that protrudes outward from the frame base 57.

  The rear panel housing part 64 surrounds the transparent opening 58 so as to border, opens to the back surface of the frame base 57 and the transparent opening 58, and is provided in the frame base 57 as a recess from the rear surface of the frame base 57 to the inside. It is done. The outer periphery of the rear panel housing portion 64 is the same size as the outer periphery of the rear panel 53 so that the rear panel 53 is taken into the rear panel housing portion 64, but the rear panel 53 is bonded to the rear panel housing portion 64 with an adhesive. In this case, the rear panel accommodating portion 64 is larger than the rear panel 53 by the thickness of the adhesive. The dimension recessed from the back surface of the frame base 57 of the rear panel housing portion 64 to the inside is the same as the thickness of the rear panel 53 in the front-rear direction. By attaching the rear panel 53 to the frame 54 so as to close the rear side of the transparent opening 58 from the back side of the frame 54, the peripheral edge of the rear panel 53 is fitted into the rear panel housing part 64 and fixed with an adhesive. .

  The bass reflex duct part 65 is surrounded by the speaker installation part 63, the front panel 52, the rear panel 53 and the frame 54 by the removal part 68, the through hole 69, the duct rear cover 71, the duct front cover 72, the duct wall 73 and the introduction part 74. The closed space D (see FIG. 6) and the bass reflex opening 55 are connected to each other to form a transmission path indicated by an arrow X1 of sound due to air vibration. The removal portion 68 is configured in a shape that leaves the peripheral edge portion of the fluoroscopic opening 58 as a recess from the back surface of the frame base 57 to the inside of the front side by removing the lower left portion and the lower right portion of the rear panel housing portion 64. . The through hole 69 is formed around the removal portion 68 so as to penetrate the frame base 57 in the front-rear direction. Inside the through hole 69, a duct cover mounting portion 70 provided in the frame 54 is disposed. The duct rear cover 71 is a plate having a size that covers the removal portion 68 and the through hole 69 as a whole. The duct rear cover 71 is provided with a rear panel housing portion 78 and a mounting hole 79. The rear panel housing portion 78 is a portion connected to the rear panel housing portion 64 when the duct rear cover 71 is attached to the frame 54. The attachment hole 79 is a through hole in the front-rear direction for inserting a screw. A duct rear cover 71 is disposed on the back surface of the frame 54 so as to cover the removal portion 68 and the through hole 69 from the rear side of the frame 54, and a set screw 80 such as a tapping screw is connected to the duct via the mounting hole 79. Fastened to the cover mounting portion 70. As a result, the duct rear cover 71 is attached to the frame 54 and blocks the rear side of the removal portion 68 and the through hole 69 so as not to leak sound as a whole. Thereafter, the rear panel 53 is accommodated in the rear panel accommodating portions 64; 78 and attached to the frame 54 with an adhesive.

  The duct front cover 72 is a plate having a size that covers the through hole 69 as a whole. The duct front cover 72 is provided with a bass reflex opening 55, a duct wall 73, an introduction part 74, and a mounting hole 75. The bass reflex opening 55 is formed in the duct front cover 72 as a through hole in the front-rear direction. The duct wall 73 is a protrusion that protrudes from the back surface of the duct front cover 72 to the back side and surrounds the bass reflex opening 55. The introduction part 74 is a part of the back surface of the duct front cover 72 that is removed so that the upper part of the duct wall 73 is connected to the removal part 68. The attachment hole 75 is a through hole in the front-rear direction for inserting a screw. The duct front cover 72 is disposed on the front surface of the frame 54 so as to cover the through hole 69 from the front side of the frame 54, and a set screw 76 such as a tapping screw is connected to the duct cover mounting portion 70 via the mounting hole 75. It is concluded. As a result, the duct front cover 72 is attached to the frame 54 and blocks the entire front side of the through hole 69 so as not to leak sound. In this way, by attaching the duct rear cover 71 and the duct front cover 72 to the frame 54, the bass reflex duct unit 65 has the front panel 52, the rear panel 53, the frame 54, the removal unit 68, the through hole 69, the duct rear cover. 71, a duct front cover 72, a duct wall 73, and an introduction part 74, and forms a sound transmission path by vibration of air that connects the speaker installation part 63 and the bass reflex opening part 55 to each other.

  A duct rear cover 71 is attached to the back surface of the frame 54. The duct rear cover 71 has a plate shape that is large enough to cover the removal portion 68, the duct wall 73, and the introduction portion 74. The duct rear cover 71 is provided with a rear panel housing portion 78 and a mounting hole 79. The rear panel housing portion 78 is a portion connected to the rear panel housing portion 64 when the duct rear cover 71 is attached to the frame 54. The attachment hole 79 is a through hole in the front-rear direction for inserting a screw. The duct rear cover 71 is disposed on the back surface of the frame 54 so as to cover the removal portion 68, the duct wall 73, and the introduction portion 74 from the rear side of the frame 54, and a set screw 80 such as a tapping screw opens the mounting hole 79. It is fastened to the duct cover mounting portion 70 via the via. As a result, the duct rear cover 71 is attached to the frame 54 and blocks the removal portion 68, the duct wall 73 and the introduction portion 74 so as not to leak sound as a whole. The rear panel 53 is accommodated in the rear panel accommodating portions 64; 78 and attached to the frame 54 with an adhesive.

  Thus, the front panel 52, the rear panel 53, the duct rear cover 71 and the duct front cover 72 are attached to the frame 54, so that the bass reflex duct portion 65 is connected to the front panel 52, the rear panel 53, the frame 54, and the duct rear cover 71. And a sound transmission path by vibration of air that is surrounded by the duct front cover 72 and connects the speaker installation portion 63 and the bass reflex opening 55 to each other. The duct front cover 72 provided with the bass reflex opening 55 and the duct wall 73 is formed separately from the frame 54 and attached to the frame 54. For this reason, by exchanging the duct front cover 72, there is an advantage that sound tuning in the bass reflex duct portion 65 can be easily and appropriately performed.

  The structure of the pachinko gaming machine will be described with reference to FIG. The gaming machine frame 1 includes a movable frame 3 that can be opened and closed on the front side of the fixed frame 2, and a front door 4 and a dish structure 5 that can be opened and closed on the front side of the movable frame 3. The fixed frame 2 is also referred to as an outer frame fixed to a gaming machine installation facility called an island of a game store where a pachinko gaming machine is installed. The movable frame 3 is also referred to as a front frame to which parts necessary for a game such as a game board 36 and a control device (not shown) are attached. The movable frame 3 is centered on the hinge 6 located on the left side and can be opened one side so that it can be opened to the front side and closed to the rear side on the front side of the fixed frame 2. , Panel rear side extrusion part 9, panel front side receiving part 10, panel hanging operation body 11, panel shelf 12, ball launching mechanism 13, ball launching rail 14, return ball intake 15, front side pad 16, external discharge bowl 17, a locking device 18, a latching mechanism 19; 20; 21, and a latch release operating body 22 are provided. The board accommodating portion 7 has a rectangular box shape opened to the front side so that the game board 36 can be stored from the front side of the movable frame 3. The central opening 8 is formed as a through-hole in the front-rear direction on the back wall of the board housing part 7.

  The board rear side pushing part 9 is an elastic body such as a leaf spring that pushes the game board 36 forward. The board front side receiving part 10 is a protrusion that receives the game board 36 pushed forward by the board rear side pushing part 9. The panel rear side extrusion part 9 and the panel front side receiving part 10 are provided on the left side of the panel housing part 7 so that the panel rear side extrusion part 9 is on the rear side and the panel front side receiving part 10 is on the front side. The panel latching operation body 11 protrudes from the back wall of the panel housing part 7 to the front side, and is provided on the right side of the panel housing part 7 so as to be rotatable in a direction parallel to the back wall of the panel housing part 7. The board shelf 12 is formed by the lower edge part of the board accommodating part 7 as a flat surface in the left-right direction on which the game board 36 is mounted. The ball launching mechanism 13, the ball launching rail 14, the return ball intake 15, and the front horizontal bar 16 are provided on the front surface of the front wall extending downward from the shelf 12. The external discharge rod 17 is provided on the back surface of the front wall extending downward from the shelf 12. The locking device 18, the latching mechanism 19; 20; 21, and the latch release operation body 22 are provided on the right side of the movable frame 3.

  The front door 4 and the dish structure 5 can be individually opened so that the hinge 23 located on the left side is centered and opened to the front side and closed to the rear side of the movable frame 3. The front door 4 is also called a panel frame and has a frame shape surrounding the window 24 penetrating in the front-rear direction. A panel structure 27 and a latch member 28 are provided on the back surface of the front door 4. The panel structure 27 is centered on a hinge 29 located on the left side, and can be opened on one side so that it can be opened on the back side and closed on the back side of the front door 4. When the panel structure 27 is closed and supported by the front door 4 so as not to be opened and closed by the latch member 28, the panel structure 27 closes the window 24 from the back side. The panel structure 27 is provided with a bass speaker 30. The structure in which the bass speaker 30 is provided in the panel structure 27 will be described later with reference to FIG.

  A saucer 31 and a firing operation mechanism 32 are provided on the front surface of the dish structure 5. A ball intake port 33 and a ball supply port 34 are provided on the back surface of the dish structure 5. When the dish structure 5 is closed, the ball launching mechanism 13, the ball launch rail 14, the return ball intake 15, and the front recumbent 16 are covered with the dish structure 5. The movable frame 3 is closed and supported on the fixed frame 2 by the latch mechanism 19 so that it cannot be opened and closed, and the front door 4 and the dish structure 5 are closed and supported on the movable frame 3 by the latch mechanism 20; In this state, when a store clerk in the gaming store inserts a key plate (key) (not shown) into the key hole of the locking device 18 from the front side of the gaming machine frame 1, and rotates the key plate 90 degrees to the right, for example, the fixed frame 2 And the support form by the latching mechanism 19 between the movable frame 3 is released. After the release of the support form, the store clerk at the game store pulls the movable frame 3 forward, whereby the movable frame 3 is opened to the front side around the hinge 6. Further, when the key plate inserted into the keyhole of the locking device 18 is rotated 90 degrees to the left, for example, the support form by the latch mechanism 20 between the movable frame 3 and the front door 4 is released. After the release of this support mode, the clerk of the game store pulls the front door 4 forward, whereby the front door 4 is opened to the front about the hinge 23.

  The game area of the game board 36 is an inner portion surrounded by the inner guide rail 37 and the outer guide rail 38 on the front surface of the game board 36, and passes through the window 24 and the panel structure 27 from the front side of the gaming machine frame 1. And is visually recognized. In the game area, a winning component 39, a center decoration 40, an out port 41, a launch passage 42, a game nail and other game components (not shown) are provided. The launch passage 42 is formed by a gap between the left side portion of the inner guide rail 37 and the left side portion of the outer guide rail 38. The winning component 39 is a general winning component, a starting winning component, a variable winning component, or the like. Other game parts include windmills, side lamps, figures, characters, and the number-of-holds indicator. A mounting portion 43 is provided on the right side of the game board 36 so as to be divided into upper and lower portions. An attachment hole 44 is provided in the attachment portion 43 as a through hole in the front-rear direction. The lower mounting portion 43 is covered with the certificate stand 45 when the certificate stand 45 provided on the front surface of the game board 36 is closed. The upper left corner of the game board 36 is removed to form the speaker escape section 46.

  In the state where the front door 4 is opened to at least the front side, the left side portion of the game board 36 is inserted from the front side of the movable frame 3 between the board rear side pushing part 9 and the board front side receiving part 10, The right side portion of 36 is pushed from the front side to the rear side by the store clerk of the game store, the board holding operation body 11 is inserted into the mounting hole 44 from the back side of the game plate 36, and the store clerk of the game store protrudes to the front side of the game board 36. For example, by rotating the board latching operation body 11 by 90 degrees, the board latching operation body 11 is latched on the front surface of the game board 36, the game area of the game board 36 is directed to the front side, and the game board 36 is It is attached to the board accommodating portion 7 inside the movable frame 3. When the front door 4 is closed, the rear part of the bass speaker 30 protrudes from the front side of the game board 36 to the back side of the game board 36 via the speaker escape part 46. The closed front door 4 is supported by the movable frame 3 so that it cannot be opened and closed by the latch mechanism 20, so that the game area of the game board 36 can be seen through the window 24 and the panel structure 27 of the game machine frame 1. Thereafter, a store clerk at the game store pulls the key plate forward from the key hole of the locking device 18.

  The front structure of the gaming machine frame 1 in which the front door 4 and the dish structure 5 are closed will be described with reference to FIG. On the front surface of the front door 4, a bass sound emitting hole 50 is provided separately on the left and right below the window 24. Then, a control device (not shown) is activated upon receiving power supply, and a ball called a pachinko ball is placed in the saucer unit 31, and the player operates the firing operation mechanism 32, which corresponds to the operation amount from the firing operation mechanism 32. When an electrical output is input to the control device, and the control device drives the ball launching mechanism 13, the ball launching mechanism 13 passes from the saucer unit 31 via the ball supply port 34 (see FIG. 2) and the ball launching rail 14 (see FIG. 2). 2), one ball at a time is fired toward the game area of the game board 36 with a mechanical output corresponding to the operation amount by the firing operation mechanism 32. The ball launched into the game area wins the winning component 39 (see FIG. 2), and the ball detector (not shown) outputs a winning signal for detecting the winning ball to the winning component 39 to the control device. When the bass speaker 30 is driven based on the signal, the bass is emitted to the front side from the bass sound emitting hole 50 in the lower part of the front door 4.

  A schematic structure of the panel structure 27 will be described with reference to FIG. The panel structure 27 includes a bass speaker 30, a front panel 52, a rear panel 53, a frame 54, and a bass reflex opening 55. The front panel 52 is configured by a glass plate disposed on the back side of the window 24 and having a size for closing the window 24. The rear panel 53 is formed of a glass plate that is disposed on the rear side of the front panel 52 and has a size that closes the window 24. When the panel structure 27 is attached to the back surface of the front door 4, the bass reflex opening 55 is provided at the lower part of the panel structure 27 so as to be connected to the bass sound emission hole 50.

  With reference to FIG. 5, the structure of the portion of the frame 54 to which the bass speaker 30 is attached will be described. A speaker mounting portion 81 is provided inside the speaker installation portion 63. A rear cover mounting portion 82 is provided outside the speaker installation portion 63. The bass speaker 30 includes an acoustic conversion portion 84 at the rear portion of the conical cone 83, a flange 85 protrudes outward from the front edge portion of the cone 83, a plurality of screw insertion holes 86 provided in the flange 85, and the acoustic conversion portion 84. Converts the signal input from the lead wire 87 formed of a covered electric wire protruding outward from the acoustic converter 84 to mechanical vibration and transmits it to the cone 83, and the cone 83 transmits the vibration transmitted as low sound waves. And release. The leader line 87 is provided with a connector 88. When the bass speaker 30 is arranged on the speaker installation unit 63 from the rear side of the frame 54 so that the cone 83 is directed to the front side, the cone 83 and the sound conversion unit 84 are not in contact with the speaker installation unit 63, and the flange The front surface of 85 contacts the back surface of the speaker mounting portion 81. Then, a set screw 89 such as a tapping screw is fastened to the speaker mounting portion 81 via the screw insertion hole 86 from the rear side of the bass speaker 30. Accordingly, the bass speaker 30 is attached to the speaker installation unit 63 so as to protrude from the speaker installation unit 63 to the back side.

  The bass speaker 30 is covered with a speaker rear cover 90. The speaker rear cover 90 has a box shape opened to the front side. A screw insertion hole 91 as an attachment portion is provided in the peripheral edge portion of the front opening of the speaker rear cover 90. The rear wall of the speaker rear cover 90 is provided with a sound emitting hole portion 92 composed of a number of through holes. When the speaker rear cover 90 is put on the bass speaker 30, the connector 88 is inserted into one through hole constituting the sound emission hole 92 from the front side of the speaker rear cover 90 and pulled out to the rear side of the speaker rear cover 90. As a result, the lead line 87 is passed through the rear wall of the speaker rear cover 90. Then, the speaker rear cover 90 is put on the bass speaker 30 from the rear side of the bass speaker 30, the peripheral edge portion of the front opening of the speaker rear cover 90 is brought into contact with the back surface of the speaker installation portion 63, and a set screw 93 such as a tapping screw is used. Is fastened to the rear cover mounting portion 82 from the rear side of the speaker rear cover 90 via the screw insertion hole 91. As a result, the speaker rear cover 90 is attached to the speaker installation portion 63. In this best mode, since the bass reflex opening 55, the speaker installation portion 63, and the bass reflex duct portion 65 are provided in the frame 54, the bass reflex opening 55, the speaker installation portion 63, and the bass reflex duct portion 65 are connected to the front panel of FIG. There is an advantage that the structure of the front panel 52 is simplified compared to the case where the front panel 52 is provided.

  As shown in FIG. 4, the hinge pin 61 of the panel structure 27 having the game sound device configured as described above is fitted into a hinge hole (not shown) provided on the back surface of the front door 4 from above. The panel structure 27 is attached to the back surface of the front door 4. The hinge pin 61 and a hinge hole (not shown) constitute the hinge 29 shown in FIG. Then, as shown in FIG. 2, the panel structure 27 is closed on the back side of the front door 4 with the hinge 29 as the center, and the latching member 28 is operated by a store clerk at the game store to be placed on the back surface of the latch receiving portion 62. When the panel structure 27 is supported on the back surface of the front door 4 so as not to be opened and closed, the panel structure 27 closes the window 24 from the back side, and the front side of the bass speaker 30 is covered with the front door 4.

  As shown in FIG. 6, the sound emitted to the front side from the cone 83 of the bass speaker 30 is transmitted from the front side of the speaker installation portion 63 to the closed space D and the bass reflex duct through the transmission path indicated by the sound arrow X1 due to the vibration of air. The light is discharged from the left and right lower portions of the front door 4 to the front side through the portion 65, the bass reflex opening 55, and the bass sound emitting hole 50. The sound emitted to the rear side from the cone 83 of the bass speaker 30 is transmitted from the rear side of the speaker installation portion 63 through the transmission path indicated by the sound arrow X2 due to air vibration, The sound is discharged to the back side of the game board 36 through the speaker escape portion 46 in order. That is, bass is emitted from the bass speaker 30 to the lower front side of the front door 4 through the bass reflex duct portion 65, the bass reflex opening 55, and the bass sound emission hole 50 using the closed space D as an enclosure. There is an advantage that a game effect by a low sound emitted to the lower front side of the front door 4 is appropriately provided to a player who plays a game on the front side of the gaming machine frame 1. Since the bass emitted to the rear side of the bass speaker 30 is released to the rear side of the gaming machine frame 1, there is an advantage that there is no inconvenience to interfere with the bass emitted to the lower front side of the front door 4. is there.

  In FIG. 6, a gap 94 between the panel structure 27 and the game board 36 is a space in which the ball P launched into the game area of the game board 36 flows down. In order to clearly show the boundary between the front door 4 and the panel structure 27, the front surface of the front panel 52 of the panel structure 27 is illustrated as being separated from the back surface of the front door 4 surrounding the window 24. When the panel structure 27 is closed to the front door 4 so as not to be opened and closed, the front surface of the front panel 52 contacts the back surface of the front door 4 surrounding the window 24.

  In FIG. 6, the duct rear cover 71 may be attached to the frame 54 with an adhesive without using a fixing tool such as a set screw 80. And the place where the bass speaker 30 is overlapped in the front-rear direction is not limited to the upper left part of the gaming machine frame 1. The duct rear cover 71 may be provided integrally with the frame 54 by forming the frame 54 with a molding die without being formed separately from the frame 54.

The disassembled perspective view of the rear side of a panel structure (best form). The exploded perspective view of the pachinko machine (the best form). The front view (best form) of a pachinko machine. The exploded perspective view (best form) of a front door and a panel structure. The disassembled perspective view of the rear side of the speaker mounting portion (best mode). AA longitudinal cross-sectional view (best form) of FIG.

Explanation of symbols

1 gaming machine frame 4 front door 24 window 27 panel structure 30 bass speaker 36 gaming board 50 bass sound emission hole 52 front panel 53 rear panel 54 frame 55 bass reflex opening 65 bass reflex duct 72 duct front cover 73 duct wall D closed space

Claims (1)

A structure for closing a window therethrough in the front-rear direction front door of the gaming machine frame from the rear side by the panel structure,
The panel structure, and a rear panel of the window side of the front panel and the rear is supported by the frame so as to faced each other apart in a longitudinal direction, a closed space surrounded by the front and rear panels and the frame With
Said frame, and a speaker installation part that consists in a cylindrical shape that penetrates in the longitudinal direction and located outside the said rear panel,
And bass speaker that is mounted on the speaker installation portion toward the cone front,
A frame base having a larger outer shape than the front panel and the rear panel, and surrounding the front panel and the rear panel;
A through hole communicating with the closed space and penetrating the frame base in the front-rear direction;
A duct front cover that covers the through hole and prevents sound leakage from the through hole;
A bass reflex opening that communicates with the through-hole and penetrates the duct front cover in the front-rear direction;
A duct wall protruding from the back side of the duct front cover to the back side and surrounding the bass reflex opening;
And a bass reflex duct portion forming a transmission path of the sound by the vibration of the air connecting said closed space and bass reflex opening to each other,
Wherein the front door, the tubular bass sound emitting hole leading to the bass reflex opening is provided,
A game acoustic apparatus in which sound emitted from the bass speaker is emitted to the front side through the speaker installation part, the closed space, the bass reflex duct part, the bass reflex opening part, and the bass sound emitting hole part in order .

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