JP2005305036A - Display device mounting mechanism for pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pachinko game machine which enables the mounting of a large pattern display device along with restricted production costs. <P>SOLUTION: In the pachinko game machine PM which has the game board 10 with the playing area PA formed on its front, a front frame 2 which gets the game board 10 housed and held therein being kept erected and the pattern display device 30 for displaying the figures to match the development of the games, a transparent region SA is so formed as to be made visually recognizable behind it from its front positioned within the playing region PA and an engaging protrusion 27 is provided on either the rear of the front frame 2 or the pattern display device 30 while a receiving part 34 is provided on the other to be engaged with the engaging protrusion 27. When the engaging protrusion 27 gets engaged with the receiving part 34, the display part 31a of the pattern display device 30 comes to face the front through the transparent area SA. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a display device mounting mechanism for a ball game machine that includes a game board having a game area formed on the front surface and a front frame that houses and holds the game board in a standing posture.

  There is a pachinko machine as an example of the above-mentioned ball game machine. A pachinko machine is configured by storing and holding a game board, which forms a game area on the front surface, in a standing position in a storage part provided on a square front frame, and is guided to the upper part of the game area by a launching device. In the process of dropping the game, it is configured to play a game for winning a winning tool provided in the game area.

  The game board is composed of a decorative board formed by pasting cells printed with a predetermined pattern on a rectangular plywood board that has been subjected to router processing, etc., and a rail that guides the game ball is attached to the front of the decorative board A substantially circular gaming area is defined. In the game area, a large number of game nails, prize-winning equipment, etc. are attached, and a decorative body is attached to the periphery of the opening provided in the substantially central part, and a pattern corresponding to the game development is provided in this opening. A symbol display device that displays and enhances the playability is disposed with a display unit such as a liquid crystal panel facing the front. The symbol display device is configured by housing a display, a control board, and the like in a case, and is attached to protrude from the back of the game board. In addition, the area of the protruding rear end face of the case is generally configured to be larger than the display area of the display that forms the front end face.

  In addition, a game ball processing mechanism is provided on the back side of the pachinko machine. As a form, a back set board having a processing mechanism such as a ball passage on both the front and back sides covers the entire back surface of the front frame. There is a form of attaching, a form in which the back set board is attached so as to cover only the lower back of the front frame, and a part of the processing mechanism is integrally provided on the upper back of the front frame. In any of the above two examples, in order to avoid interference with the symbol display device that protrudes from the back of the game board, a rectangular opening is provided in the approximate center of the front frame or back set board. It is formed so as to accommodate the protruding portion of the symbol display device (for example, Patent Document 1).

In addition, in order to express the game theme assigned to each model of the pachinko machine, the game board creates a design with features for each model in the design printed on the cell, the ornament attached to the game area, etc. . For this reason, when changing the model, the front frame, the back set board provided with the processing mechanism of the game ball, or the outer frame forming the outer shell can be reused, while the game board can be attached and detached (so-called replacement work) "Replacement of the board") is indispensable.
Japanese Patent Laid-Open No. 2003-81411 (pages 3, 4 and 3-8)

  By the way, in recent pachinko machines, the size of the display unit of the symbol display device has been increased, and the symbol control board has also been increasing in size in order to perform an advanced game production utilizing the large display unit. It is in. However, as described above, on the back side of the game board, a processing mechanism for game balls such as a ball gathering cover and a back set board is provided and an opening for accommodating the protruding portion of the symbol display device is provided. The design limits are large so that the design area of each other does not interfere with each other, and according to the conventional mechanism for attaching the symbol display device directly to the back of the game board or through the ball gathering cover, the trend of increasing the size of the symbol display device in recent years There was a problem that it was difficult to attempt a design corresponding to the above.

  In addition, a liquid crystal panel that is generally used as a display of a symbol display device of a pachinko machine has a backlight life of about 10,000 to 50,000 hours, and the number of days used in a game facility is 2 The calculation will enable operation for more than a year. However, on the other hand, in the gaming facilities, the installation priority of popular models and new models is extremely high in providing gaming services in a limited space, and it is renewed in about 3 to 6 months for general pachinko machines It is in the present condition to be forced. For this reason, when the board is changed due to the model change, the liquid crystal panel with sufficient life is discarded along with the game board, and a new liquid crystal panel is attached to each model, and the game board is manufactured. This has been a problem as one of the reasons for the high manufacturing cost of pachinko machines.

  In view of the above problems, an object of the present invention is to provide a ball game machine that can be attached to a large symbol display device and can be manufactured at a low cost.

  To achieve the above object, a bullet ball comprising a game board in which a game area is formed on the front surface, a front frame that accommodates and holds the game board in a standing posture, and a symbol display device that displays symbols according to game development. In a gaming machine, a transparent region is formed in the gaming region so as to be visible from the front side to the rear side, and an engagement protrusion is provided on one of the rear side of the front frame and the symbol display device, and the other side An engagement receiving portion that engages with the mating protrusion is provided, and when the engagement protrusion and the engagement receiving portion are engaged, the display portion of the symbol display device is disposed so as to face the front surface through the fluoroscopic region. ing.

  The display device mounting mechanism of a ball game machine according to the present invention has a configuration in which a symbol display device, which has been conventionally mounted on a ball cover on the back side of the game board, is attached to the back set board. With such a configuration, it is possible to increase the size of the symbol display device, which has conventionally been difficult due to the limitation in increasing the size of the ball-throwing cover due to design restrictions for avoiding interference with the back set board. it can. Furthermore, since the symbol display device can be attached from the back side, the opening provided in the back set board for accommodating the case body protruding from the back side of the display unit has at least the display unit facing the front side of the game board. Therefore, it is sufficient if the size is set to be large enough to increase the degree of freedom in disposing other mechanisms and devices provided on the back set board. Furthermore, since a design margin for forming the back set board in an assembled form via a hinge mechanism is formed, it is possible to attach a large symbol display device and provide a ball handling machine with high operability. Can do.

  In addition, since the symbol display device that was previously attached to the game board that is attached and removed when the model is changed is attached to the back set board that can be used from the old model to the new model, It is no longer necessary to install and manufacture a new symbol display device each time. For this reason, it is possible to provide a bullet ball game machine that can use the symbol display device in view of the lifetime and suppress the manufacturing cost.

  In addition, in the symbol display device mounting mechanism of this configuration, either one of an engagement protrusion and an engagement receiving portion, which is a fixture for mounting the symbol display device, is integrally provided on the back surface of the front frame. For this reason, compared with the conventional structure, a ball game machine can be manufactured by reducing the number of parts and the number of assembly steps.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present embodiment, a pachinko machine is illustrated as a bullet ball game machine to which the display device mounting mechanism according to the present invention is applied. First, the overall configuration of the pachinko machine PM will be outlined with reference to FIGS.

  In the pachinko machine PM, the front frame 2 for opening and closing mounted on the front surface of the outer frame 1 that is configured to have a rectangular frame size and forms a vertically fixed holding frame is arranged on the front surface of the opening and closing mounted to each other. A hinge mechanism 6c provided on the upper left and right sides of the front side is attached to the front so that it can be opened and closed laterally and attached and detached. The locking mechanism 7 referred to as a double lock provided on the right side of the front is always used for the outer frame 1. The closed state is engaged and connected.

  On the front side (front side) of the front frame 2, a rectangular glass door 3 that matches the front area of the front frame 2 is arranged on the upper side, and a ball tray 4 is opened on the lower side by a hinge mechanism provided on the left side of the front. Using a locking device 7 and a ball tray locking device (not shown) provided on the right side of the front surface so as to be opened and closed and detachable, the front frame 2 is always kept closed. A launching handle 5 for performing a launching operation of the game ball is attached to the lower right portion of the ball tray 4.

  At the upper part of the front frame located behind the glass door 3, a rectangular frame-shaped storage part 2 a is provided integrally with the front frame 2, and a game board unit provided in each part of the storage part 2 a and the game board 10. A game board 10 is erected and held detachably from the front side using the stop mechanism 8 and is visible through the glass door 3.

  The game board 10 includes a decorative board 11 formed by attaching a cell printed with a predetermined pattern on a rectangular laminated plywood subjected to router processing or the like. On the front surface of the decorative board 11, rail decorations 12 and 13 divided into upper and lower parts are screwed, and a substantially circular game area PA is formed on the inner side, and is emitted from a game ball launcher (not shown). Guide rail surfaces 14 and 15 for guiding the game ball to the upper part of the game area PA are formed. Inside the game area PA, a large number of game nails and game components such as a windmill 16, various prize-winning tools 17, display device decorations 18, and the like are attached. An out port 19 is provided for collecting game balls that have rolled and dropped on the PA.

  Further, the display device ornament 18 is provided so as to decorate the opening edge at the substantially central portion of the game area PA drilled by an NC router machine or the like, and slightly protrudes to the back side of the decorative board 11. (See also FIG. 4). A horizontal rectangular window frame-like see-through area SA is formed on the inner side surrounded by the display device ornament 18 provided in this way, and the back side of the game board 10 can be seen through from the front side. In the SA, a symbol display device 30 (see also FIG. 4) for displaying symbols according to the game development status is arranged with the display unit 31a of the display facing the front.

  On the rear surface of the front frame 2, a ball storage tank 21 that stores game balls, a ball payout device 24 that is directly connected to the ball storage tank 21 and pays out game balls stored in the ball storage tank 21 based on a winning state or the like Is provided. Further, at the lower back of the front frame 2, a back set board 80 covers the back of the front frame 2 using the back set board locking mechanism 9 provided on the back of the front frame 2 and each part of the back set board 80. Locked and held. Further, a ball payout passage (not shown) for guiding a game ball from the prize ball receiving opening 86 opened upward to the ball tray 4 is formed on the front side of the back set board 80, and as shown by a two-dot chain line in FIG. The lower part of the ball dispensing device 24 and the prize ball receiving port 86 are communicated with each other by a hose member 25 formed in a bellows shape, for example. In this way, a prize ball path for guiding the game ball from the ball storage tank 21 to the ball tray 4 is formed on the back side of the pachinko machine PM.

  In addition, on the rear surface thus configured, a control device, a power supply unit 41 that supplies power to electronic components, a main control device 42 that comprehensively controls the operation of the pachinko machine PM, games such as effect lighting and sound effects, etc. Various control devices such as a sub-control device 43 that mainly controls the production, a ball payout control device 44 that controls the game ball payout operation, an external relay terminal board 45 that inputs and outputs signals to and from the game facility, circuit boards, etc. These electronic parts are attached and connected by a connector cable (not shown) so that the pachinko machine PM can be operated.

  The pachinko machine PM is used in a game in which the glass door 3, the ball tray 4 and the like are closed and locked, and the game is started by storing the game ball in the ball tray 4 and rotating the launch handle 5. . When the firing handle 5 is turned, the game balls stored in the ball tray 4 are launched into the game area PA one by one by the game ball launching device disposed on the back side of the ball tray 4, and a pachinko game. Is expanded.

  In the pachinko machine PM schematically configured as described above, in the present invention, the symbol display device 30 including the display 31 is attached to the front frame 2. Hereinafter, the attachment mechanism 200 of the symbol display device 30 will be described with reference to FIGS.

  The symbol display device 30 includes a display 31 provided with a horizontal rectangular display unit 31a made of, for example, a liquid crystal panel or the like on a case body 33 that forms a housing space by assembling front and rear case halves 33a and 33b. The display control board (not shown) which is provided in the side and performs control for displaying the symbol according to game development is comprised. The case body 33 also accommodates a sub-control board 32 for effect control such as sound effects, and the symbol display device 30 and the sub-control device 43 are integrally configured. As shown in FIGS. 3 and 4, the area of the rear projecting end face of the rear case half 33 b is formed larger than the area of the display portion 31 a of the display serving as the front end face.

  Engagement receivers 34 are provided at the four left and right positions of the front case half 33a constituting the symbol display device 30 so as to protrude outward. The engagement receiver 34 is provided with a receiving groove 34a formed in a cylindrical shape, and a screw hole 34b is formed in the receiving groove 34a.

  Here, the front frame 2 is formed with a substantially rectangular opening at a position facing at least the see-through area SA of the game board 10 when the game board 10 is locked and held in the housing portion 2a. On the back surface of the, a frustoconical engagement protrusion 27 is provided integrally at the four side edge portions of the opening 20a so as to protrude rearward. The engaging protrusion 27 is formed with a protruding end portion 27a protruding in a columnar shape and provided with a screw receiving hole 27b. In addition, the outer diameter of the protrusion 27a of the engagement protrusion formed in a columnar shape and the inner diameter of the receiving groove 34a of the engagement receiving member formed in a cylindrical shape are formed with substantially the same dimensions, and the protrusion 27a. And the receiving groove 34a are provided at the same length.

  The pachinko machine PM having such an attachment mechanism 200 accommodates and holds the game board 10 in the housing portion 2a of the front frame from the front side, and receives the receiving groove 34a of the engagement receiver provided in the symbol display device 30. The front case half 33a is received in the opening 20a of the front frame 2 while being engaged with the protruding end portion 27a of the engaging protrusion provided integrally on the back surface of the front frame 2, and a screw is inserted into the screw receiving hole 27b from the screw hole 34b. By screwing, the end surface of the display unit 31a of the display 31 is substantially aligned with the rectangular see-through area SA protruding to the rear side of the game board 10 and faces the front surface.

  As described above, the display device attachment mechanism 200 according to the present invention is configured to attach the symbol display device, which has been conventionally directly attached to the back of the game board, from the back side of the front frame. With such a configuration, it is possible to increase the size of the symbol display device that has conventionally been difficult due to a design limitation for avoiding interference with a processing mechanism such as a ball gathering cover.

  Further, the display device mounting mechanism 200 according to the present invention is configured to mount the symbol display device 30 via an engaging protrusion 27 provided integrally with the front frame 2 that does not require replacement work in accordance with a change in model. Therefore, it is possible to use the display 31 that is conventionally attached to the game board 10 and discarded while leaving the life when changing the board, in view of the life, and a new type of game Since it is not necessary to attach a new display each time the panel is manufactured, a pachinko machine PM with reduced manufacturing costs can be provided.

  In addition, although the four engagement protrusions 27 are integrally provided on the front frame 2, the present invention is not necessarily limited to this configuration, and four or more engagement protrusions may be provided. With this configuration, for example, even if the size of the display unit 31a is changed due to the change of the model and the arrangement interval of the engagement receiving unit 34 is changed, the engagement protrusion to be attached is attached. By changing the selection, the arrangement interval of the engaging projections can be changed together, and it is possible to cope with the attachment of the symbol display device 30 from the rear side of the front frame.

  In the pachinko machine PM of this configuration, the back set board 80 is disposed so that the back set board 80 covers only the lower part of the front frame and the ball storage tank 21 and the ball dispensing device 24 are directly connected. Thus, the ball ball mechanism is constructed without interposing a rail member, and the ball payout mechanism 24 is connected to the ball payout passage by a hose member 25 formed in, for example, a bellows shape. It is set as the form arrange | positioned to a part. By configuring the pachinko machine PM in such a form, it is possible to secure a wide design area in the center of the back surface, and it is possible to arrange a large symbol display device in this portion.

  Next, a display device mounting mechanism for a ball game machine according to another embodiment of the present invention will be described with reference to FIG. The outline of the attachment mechanism 250 of this configuration will be described. The bracket 50 is detachably attached to the back surface of the front frame 2, the engagement protrusion 57 provided on the bracket 50, and the engagement receiver 34 provided on the symbol display device 30. Are engaged. The overall configuration of the ball game machine to which this configuration is applied is the same as that of the pachinko machine PM, and the symbol display device is the same as the above configuration example. The description of the overlapping part is omitted.

  The front frame 2 is offset at the front side at least at a position facing the see-through area SA of the game board 10 when the game board 10 is accommodated and held, and a rectangular opening 20a is formed in the recess formed by this offset. Is provided. Further, a rib 28 having a rectangular frame shape is provided on each side edge on the back side of the opening 20a so as to protrude rearward, and the accommodation space 20b is formed in the same shape surrounded by the rib 28. . Further, the protruding edge of the rib 28 is formed in a wedge shape, and a locking claw 29 is provided around it.

  Brackets 50, 50 formed in the same shape are attached to the two accommodation spaces 20b thus provided. The bracket 50 is formed by providing a folded portion 52 on a rectangular flat plate portion 51 according to the protruding height of the rib 28. The flat plate portions 51 of the respective brackets 50 are integrally provided with protruding frustoconical engagement protrusions 57 at two places arranged in the vertical direction. Similar to the engagement protrusion 27, the protrusion end portion 57a of the engagement protrusion is formed so as to protrude in a cylindrical shape and is provided with a screw receiving hole 57b. The inner diameter of the receiving portion 34a of the tool is formed with substantially the same size.

  When such a bracket 50 is fitted into the accommodating space 20 b formed by the rib 28, the end portion of the folded portion 52 abuts on the back surface of the front frame 2, and the flat plate portion 51 is provided on the protruding edge of the rib 28. By being locked by the locking claws 29, the front frame 2 is locked and held. Further, the engagement protrusion 57 provided on the flat plate portion 51 is in a state of protruding to the back side of the front frame 2.

  In the mounting mechanism 250 configured as described above, the bracket 50 is locked and held in the accommodation spaces 20b provided on both sides of the opening 20a, and the receiving portion 34a of the engagement receiver provided in the symbol display device 30 is provided. The front case half 33a is accommodated in the opening 20a provided in the front frame 2 and engaged with the protruding end 57a of the engaging protrusion provided integrally with the bracket 50, and screwed from the screw hole 34b to the screw receiving hole 57b. As shown in FIGS. 3 and 4, the display unit 31a of the display 31 is substantially aligned with the rectangular fluoroscopic area SA and faces the front surface. The symbol display device 30 is attached from the back side of the front frame 2. Since both the accommodation space 20b on both sides and the bracket 50 fitted into each of the accommodation spaces are formed in the same shape, the bracket 50 can be attached to the accommodation space 20b with the right and left being freely selectable.

  As described above, the mounting mechanism 250 of this configuration enables the symbol display device 30 to be mounted from the back side of the front frame 2 in the same manner as the mounting mechanism 200, so that a symbol display device larger than the conventional one can be mounted. By using the display device 31 in light of the lifetime, it is possible to obtain the same effect that a pachinko machine can be manufactured at a reduced cost.

  In addition, the attachment mechanism 250 of this structure is comprised so that the symbol display apparatus 30 may not be directly attached to the game board 10 or the front frame 2, but is attached to the bracket 50 as an indirect member. For this reason, the bracket member 50 applied in the present configuration in which the arrangement interval of the engagement projections 57, 57 shown by solid lines in FIG. 5 is L, or the arrangement interval of the engagement projections 57 ′, 57 ′ shown by two-dot chain lines. It is possible to change the model by manufacturing a bracket member 50 ′ with L ′ having the same outer dimensions of the flat plate portion 51, the folded-back portion 52, etc., and different arrangement intervals of the engagement protrusions 57. Accordingly, even if the size of the case body 33 that accommodates the display, the symbol control board, etc. is changed and the arrangement interval of the engagement receiving portion 34 is changed, the bracket having the optimum arrangement interval is selectively attached to the front frame 2. This can be easily handled. As described above, in the mounting mechanism 250 of this configuration, the symbol display device 30 of various sizes can be mounted.

  In each of the above configuration examples, the engagement protrusion is integrally provided on the front frame 2 or the flat plate portion 51 of the bracket 50. However, each of the engagement protrusions may be configured to be movable. FIG. 6 and FIG. 7 show a configuration change example in which the engagement protrusion is movable in the mounting mechanism using the bracket, and the mounting mechanisms 260 and 270 of the configuration change example will be described below with reference to these drawings. In addition, also in these attachment mechanisms 260 and 270, the same code | symbol is attached | subjected to the same member and duplication description is abbreviate | omitted.

  First, a configuration change example in which the engaging protrusion is movable will be described with reference to FIG. The brackets 60, 60 of the mounting mechanism 260 shown in FIG. 6 are formed with the same outer dimensions as the bracket 50, and the flat plate portion 61 and the folded portion (not shown) are formed in the same manner. The flat plate portion 61 is provided with a substantially groove-shaped guide groove 61a formed extending in the vertical and horizontal directions. Then, the engagement protrusion 67 having an outer shape formed in the shape of a truncated cone similar to the engagement protrusions 27 and 57 in each of the above configuration examples and provided with a screw receiving hole on the bottom surface is formed from the back surface of the flat plate portion 61 to the guide groove 61a. And fixed in position on the guide groove 61a. Further, the projecting end portion 67a of the engaging projection is formed in a cylindrical shape having a screw receiving hole as in the above-described configuration examples, and has an outer diameter substantially the same as the inner diameter of the receiving groove 34a.

  When the bracket 60 is fitted and held in the accommodation space 20b disposed on both sides of the opening 20a, the engagement protrusion 67 provided on the flat plate portion 61 protrudes to the back side of the front frame 2. Become. A receiving groove 34a of an engagement receiver provided in the symbol display device 30 is engaged with the protrusion 67a of the engagement protrusion, and the front case half 33a is accommodated in the opening 20a provided in the front frame 2. By screwing, the display unit 31a of the display unit 31 is substantially aligned with the fluoroscopic area SA and is brought to the front. Note that, similarly to the mounting mechanism 250 described above, the bracket 60 can be mounted in the accommodation space 20b with a left-right selection.

  Also in this structure, the same effect by attaching the symbol display apparatus 30 from the back side of the front frame 2 can be acquired. In this configuration, the engagement protrusion 67 can be slid along the guide groove 61a. For this reason, since the engagement protrusion 67 can be fixed at an arbitrary position within the extension range of the guide groove 61a, the engagement protrusion 67 can be adjusted stepwise in the vertical and horizontal directions. Therefore, even when the size of the symbol display device 30 is changed in accordance with the change of the model and the arrangement interval of the engagement receivers 34 is enlarged or reduced, the arrangement of the engagement protrusions 67 along the guide grooves 61a. By adjusting the interval in the vertical and horizontal directions, the symbol display device 30 can be attached from the rear side of the front frame.

  Subsequently, an attachment mechanism 270 of another configuration change example in which the engagement protrusion is movable will be described with reference to FIG. The brackets 70 and 70 shown in FIG. 7 also have a flat plate portion 71 and a folded portion (not shown) having the same external dimensions as the brackets 50 and 60 described above. In the flat plate portion 71, guide holes 71a, 71a,... Are provided penetrating in a matrix in the vertical and horizontal directions. Then, the engaging protrusion 77 having the same shape as the engaging protrusion 67 is screwed from the back surface of the flat plate portion 71 and is fixed in position on the guide hole 71a.

  In the same manner as in the above modified example, the bracket 70 is fitted into the holding space 20b disposed on both sides of the opening 20a to be locked and held, and the engagement provided on the symbol display device at the projecting end 77a of the engaging projection. The receiving groove 34a of the mating tool is engaged and screwed, and the front case half 33a is accommodated in the opening 20a so that the display 31a of the indicator 31 is substantially aligned with the fluoroscopic area SA and faces the front. State. In addition, like the mounting mechanisms 250 and 260 described above, the bracket 70 can be mounted in the accommodation space 20b with a left / right selection.

  Also in this configuration, the same effect can be obtained by attaching the symbol display device 30 from the back side of the front frame 2. Further, in this configuration, by selecting the locations of the guide holes 71a, 71a,... To which the engagement protrusions 77 are attached, the disposition intervals of the engagement protrusions 77 are multi-staged according to the drilling intervals of the guide holes 71a. Can be adjusted vertically and horizontally. Therefore, similarly to the above-described modification example, even when the arrangement interval of the engagement receiver 34 of the symbol display device 30 is changed due to the change of the model, the engagement is achieved by selecting the guide hole 71a to be fixed in position. By adjusting the arrangement interval of the protrusions 77 in the vertical and horizontal directions, the symbol display device 30 can be attached from the rear side of the front frame.

  6 and 7 is not limited to application only when a bracket is used. For example, as shown in FIG. 8, the both side edges of the opening 20a of the front frame 2 penetrate through a groove formed in a substantially square shape extending in the vertical and horizontal directions in the same manner as the guide groove 61a of the mounting mechanism 260. The engagement protrusion 67 is screwed from the front side of the front frame toward the screw receiving hole 67c and fixed so as to be fixed on the groove to constitute the attachment mechanism 210 of the symbol display device 30. May be attached by screwing a screw into the screw receiving hole 67b of the engaging protrusion from the screw hole 34b of the engaging receiver. Even with such a configuration, it is possible to obtain the same effect that the guide groove 61a can be slid to change the arrangement interval of the engaging protrusions steplessly. Similarly, the front frame 2 can be configured by drilling matrix-like holes arranged in the vertical and horizontal directions in the same manner as the guide holes 71a of the mounting mechanism 270 and attaching the engaging projections to the holes. By configuring in this way, the same effect as that of the attachment mechanism 270 can be obtained.

  In addition, the guide groove 61a of the bracket 60 shown in FIG. 6 is not restricted to the form shown in figure. That is, it is not necessary to form grooves by communicating as shown in the figure, and the number of grooves extending in the vertical and horizontal directions may be set to be larger or smaller. Similarly, the number of drilled guide holes 71a in the bracket 70 shown in FIG. 7 and the drilling interval are not limited to those shown in the figure, and a configuration in which a plurality of through holes are provided to change the spacing of the engagement protrusions. Any method may be used.

  In each of the above embodiments, the engagement protrusion is provided on the back surface of the front frame 2, and the engagement receiving portion that engages with the engagement protrusion protrudes outward from the case half 33 of the symbol display device 30. However, the present invention is not necessarily limited to this configuration, and any design may be used as long as the symbol display device 30 can be attached from the back side of the front frame 2. May be reversed. Even if comprised in this way, the symbol display apparatus 30 can be attached similarly to said each Example, and the same effect can be acquired.

  In each of the above embodiments, a pachinko machine is exemplified as a ball game machine to which the display device mounting mechanism according to the present invention is applied. However, an arcade game machine and a smart ball machine are also displayed as in the above embodiments. If it is a bullet ball game machine that is provided with a device and has another mechanism frame, mechanism board, etc. on the back side of the game board, it can be applied in the same manner to obtain the same effect.

It is a front view which opens and shows the glass door of the pachinko machine shown as an example of the bullet ball game machine concerning the present invention. It is a rear view which decomposes | disassembles and shows the front frame, game board, and symbol display apparatus of the said pachinko machine. It is side sectional drawing of the said pachinko machine. It is side sectional drawing of the said pachinko machine. It is sectional drawing of the front frame of the example of a change. It is a rear view of the pachinko machine which shows a part of front frame in the example of a change. It is a rear view of the pachinko machine which shows a part of front frame in the example of a change. It is a sectional side view of the pachinko machine in the example of a change.

Explanation of symbols

PM Pachinko machine PA Game area SA Perspective area 1 Outer frame 2 Front frame (2a accommodating part)
DESCRIPTION OF SYMBOLS 10 Game board 18 Display apparatus ornament 20a Opening part, 20b Storage space 27 Engagement protrusion (27a protrusion end part)
30 Symbol Display Device 31 Display (31a Display Unit)
34 Engagement receiver (34a receiving groove)
50, 60, 70 Bracket 51, 61, 71 Flat plate portion (61a guide groove, 71a guide hole)
57, 67, 77 engagement protrusion (57a, 67a, 77a protruding end)
80 Back set board

Claims (1)

A game board with a game area formed on the front,
A front frame for accommodating and holding the game board in a standing posture;
In a ball game machine comprising a symbol display device that displays symbols according to game development,
A see-through area is formed in the game area so as to be visible from the front side to the back side,
An engagement protrusion is provided on one of the back surface of the front frame and the symbol display device, and an engagement receiving portion that engages with the engagement protrusion is provided on the other.
The symbol display device is disposed on the back side of the front frame so that the display portion of the symbol display device faces the front surface through the fluoroscopic region when the engagement protrusion and the engagement receiving portion are engaged. A display device mounting mechanism for a ball game machine.

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