JP5257978B2 - Control device and game machine - Google Patents

Description

  The present invention relates to a control device that accommodates a control board that executes control related to a game, for example, and a gaming machine that includes the control device.

  Conventionally, a gaming machine such as a pachinko machine or a slot machine has a built-in control device that executes control related to a game such as a so-called “big hit lottery”. In the control device, the housing case for housing the control board is generally provided with an unauthorized opening prevention section such as a fastening section using, for example, a one-way type screw, and an unauthorized act (for example, a modification to the control board) is performed. It is designed to prevent replacement with a ROM.

  In recent years, various control devices have been devised to further improve the fraud prevention effect. For example, in the control device described in Patent Document 1, the internal space of the housing case in which the base member and the cover member are assembled. In addition to installing the control board, the internal cover is installed in the internal space of the housing case and so as to cover the front surface of the control board, thereby further improving the fraud prevention effect.

JP 2006-136751 A

  However, according to the control device described in Patent Document 1, there is a problem that the rear surface of the control board (surface on the element installation side) is exposed when a hole is formed in the cover member. In addition, although the inner cover is provided, the control board is not surrounded by the inner cover alone, so if the base member and cover member in the assembled state are forcibly opened, the control board is exposed. There is also a problem that it ends up.

  Therefore, the present invention has been made in view of the above problems, and is more excellent in crime prevention against forcible fraud such as making a hole in the case or prying the case, and easily assembling the case. It is an object of the present invention to provide a control device that can be used, and a gaming machine that includes the control device.

In order to achieve the above object, the invention according to claim 1 of the present invention is installed in a gaming machine, and the game is placed in a case formed by sliding a cover member on a rear surface of a base member in a predetermined direction. A control device incorporating a substrate for controlling the operation of the machine, wherein an inner cover having a bulging portion that covers an element installation surface of the substrate is fixed to the rear surface of the base member, and on the front surface of the cover member A pair of protruding ridges composed of a plurality of ribs continuous in a lattice shape formed in parallel along the sliding direction, and the opposing surfaces of the protruding ridges are guided to the outer peripheral surface of the bulging portion , by sliding while fitting the bulging portion between the convex portion, the cover member, thereby enabling the assembly to said base member so as to cover the inner cover, the flange on the outer peripheral surface of the inner cover In shape Projecting the piece, some of the ribs forming the convex portion, characterized in that abut with or close to the rib pieces in the assembled state of the cover member.
According to a second aspect of the present invention, in the first aspect of the present invention, in the assembled state of the cover member, the tip of the convex portion on the inner cover side is the periphery of the bulging portion peripheral edge of the inner cover. It is in contact with the surface.
On the other hand, in order to achieve the above object, the invention according to claim 3 of the present invention is characterized in that the control device according to claim 1 or 2 is installed.

According to the present invention, since the inner cover that covers the element installation surface of the substrate is fixed to the base member, even if the cover member is pry open, the inner cover must be pry open in order to perform fraud. Don't be. Moreover, even if a hole is made in the cover member, it is necessary to make a hole in the inner cover in order to perform an illegal act. Therefore, it can be set as the control apparatus with high crime prevention with respect to these forcible fraud.
In addition, the cover member is provided with a pair of protruding ridges parallel to the sliding direction on the front surface of the cover member, and the opposing surfaces of the protruding ridges are guided to the outer peripheral surface of the bulging portion, The cover member can be assembled to the base member so as to cover the inner cover by sliding while inserting the bulging portion therebetween. Therefore, the cover member can be assembled smoothly, and a rational configuration that does not require the provision of a separate member dedicated to guidance can be achieved.
Furthermore, since the ridges are composed of a plurality of ribs that are continuous in a lattice shape, the strength of the cover member itself is improved, and it is difficult to perform fraudulent activities such as making holes, which further improves crime prevention. Can be achieved.
In addition, a rib-shaped rib piece protrudes from the outer peripheral surface of the inner cover, while a part of the rib forming the ridge is brought into contact with or close to the rib piece in the assembled state of the cover member. . In other words, the rib pieces projecting from the cover member are also in contact with or close to each other at locations other than the surface of the inner cover, so that it is more difficult to remove the inner cover without removing the cover member, and even higher crime prevention. It can be set as the control apparatus provided with.
According to the second aspect of the present invention, in the assembled state of the cover member, the tip of the ridge portion on the inner cover side is in contact with the surface of the peripheral edge of the bulging portion of the inner cover. It is very difficult to open the inner cover without removing the cover, and a more excellent effect can be exhibited in preventing fraud.
On the other hand, according to the third aspect of the invention, since the ROM or the like of the control device is not illegally replaced, a gaming machine in which a player can play with peace of mind can be obtained.

  Hereinafter, a control device and a gaming machine according to an embodiment of the present invention will be described in detail with reference to the drawings. In the present embodiment, a pachinko machine that is an example of a gaming machine will be described.

(Description of pachinko machine)
FIG. 1 is an explanatory diagram showing the pachinko machine 1 from the front side, and FIG. 2 is an explanatory diagram showing the pachinko machine 1 from the rear side.
The pachinko machine 1 is a game in which a game ball is driven into a game area 2a formed on the front surface of the game board 2 and flows down in the game area 2a, and the game board 2 functions as a support. It is installed on the front upper part of the frame 3 via a middle frame 5 which is a metal frame member. Further, a front door 4 in which a glass door is fitted and installed in front of the game board 2 is hinged to the machine frame 3 so as to be able to be opened in a single direction with the left end edge as an axis, and is closed by the front door 4. A space in front of the game board 2 is a game area 2a.

  The game area 2a is surrounded by an outer rail and an inner rail (not shown) arranged in a circular arc shape on the front surface of the game board 2, and a game ball is driven into the game area 2a between the two rails. It is supposed to be a launch passage. In addition, a symbol display unit 6 for displaying a “symbol” including numbers “0” to “9”, a pattern, and the like is provided in the approximate center of the game area 2a. Furthermore, the game area 2a includes a large number of game nails (not shown), a gate member through which a game ball can pass, a tulip-type electric accessory equipped with a pair of nail pieces that can be opened and closed, and a door prize that can be opened and closed. Equipment, windmills, etc. are installed.

  Further, on the front side of the machine casing 3 and below the game board 2, a supply tray 7 for supplying game balls to the launching device 10 and a storage for storing game balls overflowing from the supply tray 7. The dishes 8 are attached to the machine casing 3 so as to be able to be opened one by one. Furthermore, an operation handle 9 for operating the launching device 10 is installed on the right side of the storage tray 8 so as to be able to rotate.

  On the other hand, on the rear side of the machine casing 3, a storage tank 11 for storing game balls to be paid out as rental balls or prize balls to the supply tray 5, a payout device 12 connected to the storage tank 11, and a symbol display unit 6 A liquid crystal display device (not shown) for displaying “symbols” on the screen, and a sub-control device (not shown) incorporating a sub-integrated substrate for comprehensively controlling the operation of the payout device 12 and the liquid crystal display device are attached. In addition, a control device 20 having a built-in main control board 21 for executing control related to the game (for example, so-called “big hit lottery”) is attached.

  In the pachinko machine 1 as described above, when the operation handle 9 is rotated by the player, the launching device 10 is activated and a game ball is driven into the game area 2a. When the game ball flowing down in the game area 2a wins the tulip-type electric accessory, a “big hit lottery” is performed on the main control board 21, and in the case of the so-called “big win”, the symbol display section 6 displays “ After the “design” is displayed in a predetermined manner (for example, “7, 7, 7”, etc.), a so-called “hit state” is generated in which the door member of the winning device is intermittently opened a predetermined number of times.

(Description of control device)
Next, the control device 20 that is a main part of the present invention will be described with reference to FIGS.
FIG. 3 is an explanatory perspective view showing the control device 20 from the rear side, and FIG. 4 is an explanatory view showing the rear surface of the control device 20. 5A and 5B are cross-sectional explanatory views of the control device 20, wherein FIG. 5A is a cross-sectional view taken along the line AA, FIG. 5B is a cross-sectional view taken along the line BB, FIG. ) Is an enlarged view of the main part in (c). FIG. 6 is an explanatory perspective view showing a state in which the control device 20 is disassembled. FIG. 7 is an enlarged perspective view illustrating the inner case 22 and the main control board 21 in an exploded state. FIG. 8 is an explanatory view showing the base member 41, where (a) is an explanatory view shown from the rear, and (b) is a perspective explanatory view. Further, FIG. 9 is an explanatory view showing the caulking cover member 42, where (a) is a perspective explanatory view shown from above, and (b) is a perspective explanatory view shown from below.

  The control device 20 includes a main control board 21, an inner case 22 that can accommodate the main control board 21, and an outer case 23 that can accommodate the inner case 22. The main control board 21 executes control related to the game as described above, and various control elements such as a CPU, ROM, and RAM (not shown) for executing control related to the game are provided on the rear surface of the board. Is installed. In addition, a connector portion for connecting the main control board 21 and the sub-integrated board or the like is provided at the lower rear surface of the main control board 21. Further, screw holes 21a, 21a,... For fixing (screwing) the main control board 21 within the inner case 22 are provided at the left and right side edge portions of the main control board 21. The main control board 21 is housed and fixed in the inner case 22 in such a posture that the surface on which the control element is installed faces rearward and the connector portion is positioned below.

  The inner case 22 is formed by assembling a front case member 31 covering the front of the main control board 21 and a rear case member 32 covering the rear of the main control board 21, and is formed by assembling both case members 31 and 32. The main control board 21 can be accommodated in the internal space. The front case member 31 is formed of a polycarbonate resin, and is difficult to crack when an external force is applied due to the characteristics of the polycarbonate resin. Further, the rear case member 32 is formed of AS resin (SAN), and due to the characteristic of the AS resin, the surface of the inner case 22 is easily scratched by the tip of a driver or the like when the inner case 22 is forced to open. It is easy to leave traces of cheating.

  The rear case member 32 is a box-like body that has a bulging portion 32a that bulges rearward substantially in the center and can accommodate an element (not shown) of the main control board 21 and is open on the front side. In the lower part, connector windows 33, 33,... For exposing the connector part of the main control board 21 are opened. The shape of each connector window 33 is formed substantially the same as the shape of each connector portion, and when the main control board 21 is accommodated, no gap is formed between the connector portion and the edge of the connector window 33. Yes. Locking recesses 34, 34 are provided at the left and right ends of the lower portion of the rear case 32. Locking pieces 43, 43 (shown in FIG. 8) provided on the base member 41 when assembled to the base member 41 are provided. ) Is locked. Furthermore, fixing pieces 35, 35 having screw holes for screwing to the base member 41 are projected from left and right ends of the upper portion of the rear case 32. In addition, a pair of flanges 36, 36 project upward from the upper end edge of the rear case member 32, and a pair of retaining pieces 37, 37 are formed on the left and right side edges of the rear case member 32. Each projectes outward. Note that a screw receiving portion (not shown) for screwing the front case member 31 and the main control board 21 is provided on the inner surface (front side) of the rear case member 32.

  The front case member 31 is a plate-like body that is formed in substantially the same size as the opening of the rear case member 32 and can be assembled to the rear case member 32 so as to be fitted into the opening. Screw holes 38, 38,... Are formed in the four corners of the front case member 31 so as to be integrated with the rear case member 32. Further, the lower edge of the front case member 31 is provided with a projecting ridge portion 39 protruding rearward, and after being integrated with the rear case member 32, connector windows 33, 33,. Interference with various elements installed on the main control board 21 can be prevented.

  On the other hand, the outer case 23 includes a base member 41 having an opening at the rear and a caulking cover member 42 that is assembled so as to cover the opening of the base member 41, and is formed by assembling both members 41, 42. The inner case 22 can be accommodated in the internal space. The base member 41 is formed of a polycarbonate resin. Due to the characteristics of the polycarbonate resin, the base member 41 is not easily broken when an external force is applied, and a later-described fraud prevention screw 44 is easily digged in. Further, the caulking cover member 42 is formed of an acrylic resin, and due to the characteristics of the acrylic resin, the surface of the outer case 23 is scratched by the tip of a driver or the like when the outer case 23 is forcibly opened like the rear case 32. It is easy to stick and it is easy to leave traces of fraud. A resin such as rubber is added to the acrylic resin used for the caulking cover member 42, and the caulking cover member 42 is slightly less damaged than the rear case member 32. Damage can be prevented.

  The base member 41 has an upper function part 45, side function parts 46 and 46, and a lower wall part 47 erected rearward along the upper, lower, left and right edges of the front plate. The inner case 22 can be accommodated in a space 41 a surrounded by the both side functional parts 46, 46 and the lower wall part 47. A pair of screw storage portions 48, 48 are recessed in the upper function portion 45, and a spare fraud prevention screw 44 for assembling the base member 41 and the caulking cover member 42 to each screw storage portion 48. Can be stored. In addition, concave fitting recesses 45a, 45a,... Opened on the upper surface are provided at the center and both left and right ends of the upper function portion 45, and the fitting protrusions 52c provided on the caulking cover member 42 can be fitted. (Shown in FIGS. 5A and 5B). On the other hand, two screw receiving portions 49, 49 that support the cylindrical portion by four support ribs are connected to each side functional portion 46 in the vertical direction. The cylindrical portion of each screw receiving portion 49 has a diameter capable of inserting the anti-tampering screw 44 before fixing, and the front of the cylindrical portion is covered with a front plate. Further, below the screw receiving portions 49, 49, a reinforcing portion 50 is provided so as to connect the lower screw receiving portion 49 and the lower wall portion 47. A locking piece 43 that is locked to the locking recess 34 when the inner case 22 is assembled is integrally formed. Furthermore, screwing portions 51 and 51 for screwing the inner case 22 in the accommodated state are provided at an upper position of the space 41a. In addition, 80 is an attachment member used when the control device 20 is installed on the rear side of the machine casing 3. In addition, a pair of clamping ribs 48a for clamping the shaft portion of the anti-tampering screw 44 is provided in the screw storage unit 48, and a tampering operation such as opening a hole and taking out the preliminary anti-tampering screw 44 is further performed. It can be reliably prevented. Further, a space is formed between the front of each reinforcing portion 50 and the front plate, and a fitting projection 53d of a caulking cover member 42 described later can be fitted.

  On the other hand, the caulking cover member 42 is formed by continuously connecting an upper function portion 52 and side function portions 53 and 53 protruding forward along the upper edge and the left and right edges of the rear plate. The member 41 can be assembled so as to cover the rear of the space 41a. The upper function part 52 includes an upper wall 52a that covers the upper surface of the upper function part 45 of the base member 41, a pressing rib 52b and a fitting protrusion 52c that are formed integrally with the upper wall 52a and the rear plate. The pressing rib 52b functions to press the rear case member 32 of the inner case 22 by abutting against the flange 36 of the inner case 22 accommodated in the space 41a when the caulking cover member 42 is assembled, and the upper portion of the caulking cover member 42. It is also responsible for reinforcement. Further, when the caulking cover member 42 is assembled to the base member 41, the fitting protrusion 52c is fitted into the fitting recess 45a from above so that the base member 41 and the caulking cover member 42 can be integrated more firmly.

  Further, each side function portion 53 of the caulking cover member 42 is provided with a screw insertion portion 53a, 53a having a hexagonal insertion hole through which the fraud prevention screw 44 can be inserted, and a pressing member that holds the inner case 22 in the accommodated state. It comprises a retaining rib 53b, a plurality of reinforcing ribs 53c, 53c,... That are continuous in a lattice shape, and a connecting wall 53d that connects the reinforcing ribs 53c, 53c,. Are respectively extended in the vertical direction. Two screw insertion portions 53 a are connected in series up and down corresponding to the screw receiving portion 49 of the base member 41. Each screw insertion portion 53a is connected to a rear plate or the like via cutting ribs 54, 54,... That can be cut by a nipper or the like, and by cutting the cutting ribs 54, 54,. It is a separate body from the screw insertion portion 53a. Further, the holding rib 53b protrudes forward from the screw insertion portion 53a, the reinforcing rib 53c, and the like, and comes into contact with the holding piece 37 of the inner case 22 in the accommodated state when assembled to the base member 41. Similar to the holding rib 52b, it functions to hold the rear case member 32 of the inner case 22. Further, the reinforcing rib 53c is formed integrally with the rear plate or the like, and is attached to the surface of the peripheral portion of the bulging portion 32a of the rear case member 32 accommodated in the space 41a or the fixing piece 35 when assembled to the base member 41. It functions to abut and hold the inner case 22 (shown in FIG. 5A), and also serves to reinforce the caulking cover member 42 side portion. Further, the connecting wall 53d is a wall portion that connects the left and right inner ends of the reinforcing ribs 53c formed in a lattice shape in the vertical direction, and serves to reinforce the caulking cover member 42, and has an inner side surface (opposite side). The side surface) functions as a guide surface that contacts and guides the left and right side surfaces of the bulging portion 32a of the rear case member 32 when the caulking cover member 42 is assembled to the base member 41. Furthermore, the lower end part of each side function part 53 protrudes below rather than a rear board, and covers the back of the latching piece 43 at the time of an assembly | attachment. In addition, a fitting protrusion 53 d that fits in front of the reinforcing portion 50 when assembled to the base member 41 is provided at the lower end portion of each side functional portion 53.

The assembly of the inner case 22 and the outer case 23 configured as described above will be described with reference to FIGS. FIG. 10 is an explanatory view showing a manner of screwing the inner case 22 and the outer case 23, and FIG. 11 is an explanatory view showing a state in which the inner case 22 is assembled to the base member 41. In FIG. 10, the main control board 21 is omitted.
First, the inner case 22 is assembled by screwing the front case member 31 from the front to the rear case member 32 with screws 24, 24... With the main control board 21 interposed behind. At this time, the main control board 21 is also screwed to the rear case member 32 inside the inner case 22 by the screws 24, 24. At this time, the front case member 31 is fitted into the opening of the rear case member 32 so that the surface (element installation surface) of the main control board 21 is difficult to be exposed when trying to forcibly open it. It has become.

  Next, the inner case 22 assembled as described above is assembled to the base member 41. At the time of the assembly, after storing spare fraud prevention screws 44, 44 that are not used this time in the screw storage portion 48 of the base member 41, the inner case 22 is fitted into the space 41a, and the fixing piece 35 is fixed by screws 55, 55. The screwing portion 51 is screwed and assembled. At this time, the flanges 36, 36 of the inner case 22 are in a state of covering the opening of the screw storage portion 48, and in the lower part of the inner case 22, the locking piece 43 is locked in the locking recess 34. It has become. Further, the front surface of the inner case 22 is in contact with the inner surface of the base member 41.

  Thereafter, an identification seal 56 having an IC tag storing a unique ID is attached so as to straddle the rear surface of the flange 36 of the inner case 22 and the upper surface of the upper functional portion 45 of the base member 41. At this time, the identification tag 56 is pasted so that the IC tag (that is, the chip storing the ID and the antenna unit for performing wireless communication with the external terminal) is positioned on the upper surface side of the base member 41. The ID can be read through the caulking cover member 42 by bringing an external terminal close to the controller 20 from above. Further, an identification number different from the ID is described on the surface of the identification seal 56 on the side of the flange piece 36, and the identification number can be visually confirmed. To be able to increase. Further, a reaction part (remaining part) that is discolored by a chemical reaction when a solution or the like used for peeling the seal adheres is provided on the same surface, thereby preventing unauthorized separation of the identification seal 56.

  As described above, after the inner case 22 is assembled to the base member 41 and the identification seal 56 is adhered, the base member 41 and the caulking cover member 42 are integrated using the anti-tampering screws 44 and 44. At this time, the caulking cover member 42 guides the opposing surfaces of the connecting walls 53d and 53d to the left and right side surfaces of the bulging portion 32a, and inserts the bulging portion 32a between the side functional portions 53 and 53, while The fitting projections 52c are fitted into the fitting recesses 45a, and the fitting projections 53d and 53d are fitted to the front of the reinforcing portion 50. Then, the fraud prevention screw 44 is inserted into the lower screw insertion portion 53a of the left and right screw insertion portions 53a, 53a from the rear (caulking cover member 42 side), and the tip of the fraud prevention screw 44 is connected to the base member 41. The base member 41 and the caulking cover member 42 are integrated and the outer case 23 is assembled by engaging and biting the screw receiving portion 49. When the caulking cover member 42 is assembled, the rear surface of the inner case 22 is in contact with the inner surface of the caulking cover member 42. That is, the inner case 22 has the front and rear surfaces in the assembly direction of the front case member 31 and the rear case member 32 in contact with the inner surfaces of the base member 41 and the caulking cover member 42. It will be accommodated in the interior space. Further, the bulging portion 32a of the inner case 22 is in a state of being sandwiched between the side function portions 53 and 53, and the reinforcing ribs 53c, 53c,... Are in contact with the surface of the peripheral portion of the bulging portion 32a. ing. Furthermore, the locking pieces 43, 43 that lock the inner case 22 are covered by the lower end portions of the respective side functional portions 53 of the caulking cover member 42, and are also damaged and pry open using a tool from the side by the reinforcing portion 50. Etc. are also prevented.

  In the assembled state, the main control board 21 is double-covered by the inner case 22 and the outer case 23, and only the connector portion is exposed from the connector windows 33, 33. Further, the pressing ribs 52b, the pressing ribs 53b, 53b, the reinforcing ribs 53c, 53c, etc. of the caulking cover member 42 contact the collar piece 36, the pressing pieces 37, 37, the fixing piece 35 and the surface of the rear case member 32. As long as the caulking cover member 42 is not removed, the inner case 22 is opened, the screw 55 fixing the fixing piece 35 is removed, or the spare anti-fraud screw 44 is taken out from the screw storage 48. Or the identification seal 56 cannot be peeled off (that is, all of those illegal acts are prevented). Further, the upper surface 52a of the upper cover 52 is covered with the upper wall 52a of the caulking cover member 42 so that the surface of the identification seal 56 on the side having the IC tag cannot be easily touched.

  As described above, the control device 20 is assembled and attached to the rear side of the machine casing 3 by the attachment members 80, 80 and the like. Further, when the control device 20 is opened again for inspection of the main control board 21 (for example, check of ROM) or the like, the cutting ribs 54 at the periphery of the screw insertion portion 53a fixed by the anti-fraud screw 44 are used. , 54... May be cut with a nipper or the like. Then, the screw insertion portion 53a and the caulking cover member 42 are separated from each other, and the caulking cover member 42 can be detached from the base member 41 while leaving the screw insertion portion 53a to the base member 41 side. Therefore, the screws 55, 55 are removed in the reverse order to the above assembly, the identification seal 56 is peeled off, the inner case 22 is taken out from the base member 41, and the screws 24, 24,. Inspection can be performed. After that, when reassembling, the upper screw insertion portion 53a on the upper side that was not originally used is replaced with the spare anti-fraud screws 44, 44 that were originally assembled in the same procedure as described above and initially stored in the screw storage portion 48. As in the case described above, the end of the anti-tampering screw 44 is locked and bite into the screw receiving portion 49 of the base member 41, and the assembly is completed.

(Explanation of fraud prevention screw)
Here, the fraud prevention screw 44 will be described with reference to FIG. FIG. 12 is a perspective explanatory view showing the tampering prevention screw 44.
The fraud prevention screw 44 includes a screw member 61 formed in a cylindrical shape and a core member 62 inserted into the screw member 61. The screw member 61 includes a head portion 61c having a hexagonal flange, and a shaft portion integrally projecting forward from the head portion 61c. And the front-end | tip part of a shaft part is formed in the shape of a tip which is provided with a plurality of cuts along the diameter direction from the front-end | tip, and the file-shaped latching surface is formed in the outer peripheral surface of each tongue part 61a. Is provided. In addition, a thread groove (not shown) is formed on the inner peripheral surface of each tongue portion 61a up to the tip (note that the thread groove is not formed until the tip is reached; In addition, the surface where the screw groove is not provided is left), and the diameter of the cracked portion is formed to be smaller than the diameter of the male screw portion 62a of the core member 62 described later. By screwing, the diameter of the cracked portion is expanded. Further, a locking projection 61b is projected in the radial direction at the tip of each tongue 61a. On the other hand, the core member 62 is a screw member in which a male screw portion 62a is provided only at the tip portion of the shaft, and the screw head 62b is formed in a one-way type that can apply torque only in the screwing direction. Although the diameter of the male threaded portion 62a of the core member 62 at the peak position is larger than the shaft, the diameter at the valley position is the same as that of the shaft. When screwing, the tip of the screw member 61 is not expanded more than necessary.

A method of using the fraud prevention screw 44 configured as described above will be described.
First, the screw member 61 is pushed in via the screw insertion portion 53a so that the locking projections 61b, 61b,... Protrude forward from the screw receiving portion 49. Next, the core member 62 is forcibly screwed into the screw member 61 in this state, and the male screw portion 62a is further projected forward from the tip of the screw member 61 by the screwing force. Then, the diameter of the cracked portion expands, the outer peripheral surface of each of the tongue portions 61 a that are made into a file shape bites into the inner peripheral surface of the screw receiving portion 49, and the locking projection 61 b is formed on the edge of the screw receiving portion 49. The screw member 61 is locked to prevent the screw member 61 from coming off, and the base member 41 and the caulking cover member 42 are integrated.
In addition, when screwing the core member 62, the hexagonal head 61c and the insertion hole of the screw insertion portion 53a are engaged, and it is easy to apply torque to the core member 62 and apply torque. This prevents the screw member 61 from rotating. Further, the male screw portion 62a has such a strength that the screw thread is crushed when passing through a surface where no screw groove is provided. Once the male screw portion 62a is in the state shown in FIG. It does not screw into the groove.

(Effect of control device)
According to the control device 20 as described above, the main control board 21 is accommodated in the inner case 22 accommodated in the outer case 23 in which the base member 41 and the caulking cover member 42 are assembled. Therefore, in order to perform an illegal act against the main control board 21, it is necessary to pry two cases such as the inner case 21 and the outer case 23 or to make a hole. It is extremely difficult to work, and can exhibit excellent crime prevention.
In addition, the inner case 22 is assembled by screwing the front case member 31 and the rear case member 32 in the front-rear direction, while the outer case 23 that accommodates the inner case 22 is caulked against the base member 41. The member 42 is assembled by sliding it up and down. Thus, since the assembly direction of the inner case 22 and the assembly direction of the outer case 23 are different, it is extremely difficult to pry the outer case 23 and the inner case 22 at the same time, and extremely excellent crime prevention. Can be demonstrated.

Further, the rear case member 32 is provided with a bulging portion 32a for accommodating the elements of the main control board 21, and the side composed of reinforcing ribs 53c, 53c,... The function parts 53 and 53 are extended in the up-down direction. Then, when the caulking cover member 42 is assembled to the base member 41, the opposing surfaces of the side function parts 53 are guided to the left and right side surfaces of the bulge part 32 a, and the bulge part 32 a is inserted between the side function parts 53 and 53. Can be assembled. Therefore, the caulking cover member 42 can be assembled smoothly, and a rational configuration that does not require the provision of a separate member dedicated to guidance can be achieved.
Further, on the left and right sides of the bulging portion 32a, the side functional portion 53 having the reinforcing ribs 53c, 53c,. It is difficult to reach the element of the main control board 21 by making a hole or the like from the side of the cover member 42, and such an illegal act can be prevented.
Furthermore, in the assembled state of the caulking cover member 42, the reinforcing ribs 53 c, 53 c... Forming the side function portion 53 are in contact with the surface of the peripheral edge of the bulging portion 32 a in the inner case 22. It is very difficult to pry open the inner case 22 without removing it, and it is possible to exert a more excellent effect in preventing fraud.

In addition, the crimping cover member 42 is provided with pressing ribs 52b, holding ribs 53b, reinforcing ribs 53c, etc., and these various ribs improve the strength of the crimping cover member 42 itself, making it difficult to perform illegal acts such as making holes. In addition, since the ribs abut against the surface of the inner case 22, the flange piece 36, and the retaining pieces 37, 37, the inner case 22 is in an illegal state such as making a hole in the outer case 23 or in the accommodated state. Unauthorized opening is made even more difficult, and the crime prevention can be improved significantly. Further, the lower end portion of the side function portion 53 of the caulking cover member 42 covers the locking pieces 43 and 43 in the assembled state, and a reinforcing portion 50 is provided on the side of each locking piece 43. For this reason, after the caulking cover member 42 is assembled, the locking of the locking piece 43 and the locking recess 34 is released by an illegal action such as folding the locking piece 43, and the act of illegally opening the inner case 22 is prevented. be able to.
Furthermore, since the front and rear surfaces of the inner case 22 are in contact with the inner surfaces of the base member 41 and the caulking cover member 42, the inner case 22 is completely exposed because it is accommodated in the inner space of the outer case 23. Unless the outer case 23 is opened, the inner case 22 cannot be opened. Therefore, unauthorized opening of the control device 20 can be prevented very reliably.
In addition, in the base member 41, the screw receiving portions 49, 49,... Are provided so as not to protrude sideways from the front plate, that is, the front of the screw receiving portions 49, 49,. Therefore, it is difficult to perform a fraudulent act such as cutting the tip of the anti-fraud screw 44 in a fixed state, and the crime prevention property at the location can be improved.

Further, since the base member 41 is provided with the screw storage portion 48 for storing the spare tamper-proof screw 44, the management of the tamper-proof screw 44 and the like are simplified, and the usability is good. Furthermore, since the opening of the screw storage portion 48 is covered by the inner case 22 accommodated in the outer case 23, it is difficult to illegally take out the anti-tampering screw 44, which is used for sealing other control devices. Secondary use such as use can be prevented.
Further, since the protruding strip portion 39 protruding rearward along the lower edge of the front case member 31 of the inner case 22 is provided, it is difficult to insert unauthorized tools or the like into the inner case 22 from the peripheral edges of the connector windows 33, 33. Thus, the crime prevention property of the inner case 22 can be improved.

Furthermore, the inner case 22 and the outer case 23 are spread over the inner case 22 and the upper function part 45 of the outer case 23 so as to straddle the inner case 22 and the upper case 45 of the outer case 23 in detail. An identification seal 56 having an IC tag storing the ID is attached. Accordingly, in order to take out the anti-fraud screw 44, the identification seal 56 must be peeled off, making it difficult to remove the anti-fraud screw 44 illegally, and the crime prevention can be further improved.
Further, since the surface having the IC tag is positioned on the upper surface of the outer case 23 when the identification seal 56 is pasted, the ID can be used without opening the control device 20 by using an external portable terminal. Is easy to use. In addition, since the identification seal 56 is provided with a reaction portion that reacts with the solution, it is possible to recognize unauthorized peeling using the solution, and to suppress unauthorized acts.

Further, in the control device 20, the tamper-proof screw 44 is constituted by a tip-shaped screw member 61 and a core member 62 that can be inserted into the screw member 61 and has a tip that has a larger diameter than the shaft. ing. Then, by pushing the core member 62 until the tip projects forward from the screw member 61, the tip of the screw member 61 expands, and its outer peripheral surface bites into the inner peripheral surface of the screw receiving portion 49. The stop protrusion 61b is engaged with the end edge of the screw receiving portion 49 to prevent the screw member 61 from coming off, so that the base member 41 and the caulking cover member 42 are integrated. Therefore, by sealing the outer case 23 of the control device 20 using the anti-tampering screw 44, the screw member 61 can be removed even if a tool or the like is used unless the screw insertion portion 53a is separated from the outer case 23. Since it is difficult to remove, the control device 20 can be made extremely high in security as compared with a control device in which the case is assembled only by screwing or the like.
Furthermore, the thread groove provided on the inner peripheral surface of each tongue portion 61a is formed only to the end, and the strength of the male thread portion 62a is reduced so that the screw thread is crushed when passing through the surface where the thread groove is not provided. Once the state shown in FIG. 12B is reached, the screw groove on the inner surface of the screw member 61 and the male screw portion 62a of the core member 62 are not screwed again. Accordingly, it is possible to exert a higher unauthorized opening prevention effect.
In addition, by installing the control device 20 as described above in the pachinko machine 1, it is possible to provide the pachinko machine 1 in which the player can play with peace of mind without fear of the ROM being illegally replaced. .

(Modification of the present invention)
The configuration related to the control device and the gaming machine of the present invention is not limited to the mode described in the above embodiment, and the configuration related to the outer case, the inner case, the fixing means, the type of the gaming machine, and the like. The present invention can be appropriately changed as necessary without departing from the spirit of the present invention.

For example, in the above-described embodiment, two fixing portions using fraud prevention screws are provided on each of the left and right sides of the outer case, but the number, installation position, and the like can be changed as appropriate. You may comprise so that it may seal using a fraud prevention screw.
Further, the position of the screw storage part (that is, not only the installation position on the base member, but the screw storage part may be provided on the caulking cover member), the attaching position of the identification seal, etc. There is no limitation to this.
Further, in the above-described embodiment, the screw member is provided with a thread groove and a male screw portion is provided at the tip of the core member. However, such a screw-in type is not employed, and the screw member is provided with a groove or the like. It is good also as a structure (push-in type) which employ | adopts a pin member with a large diameter as a core member, and expands the front-end | tip of a screw member by pushing in the said pin member, without providing. Further, even if a screw-in type is adopted, it is not always necessary that the male screw portion is crushed. When the portion is protruded, the flange portion can be engaged with the distal end surface of the screw member to prevent the core member from being pulled out. In addition, the mechanism for integrating the outer case is not limited to the mechanism using the core member and the screw member as described above, but a so-called “caulking” such as a one-way type screw connection portion or a heat welding portion. A so-called irreversible coupling mechanism can be adopted.

Moreover, in the said embodiment, although the control apparatus is made into the double structure which consists of an inner case and an outer case, the structure which attaches the internal cover which covers at least one surface of a board | substrate to a base member or a cover member instead of an inner case It is good. Furthermore, in the above-described embodiment, various ribs such as a pressing rib, a holding rib, and a reinforcing rib are configured to contact each part of the rear case member. It is also possible to project a column-shaped pressing portion and a pressing portion in place of the pressing rib and the pressing rib.
Furthermore, the remaining part of the identification sticker is a reaction part that reacts with the solution, but the identification sticker is configured so that the antenna for wireless communication breaks when it is peeled off once attached due to the strength of the adhesiveness. There is no problem even if there is a remaining part.
In addition, the outer case and the resin for manufacturing the inner case are not limited to the above embodiment. In addition, the control device according to the present invention can be installed not in a pachinko machine but in other gaming machines such as slot machines, or a control device (for example, a sub-integrated box) containing a board related to a game other than the main control board Needless to say, this is also applicable.

It is explanatory drawing which showed the pachinko machine from the front side. It is explanatory drawing which showed the pachinko machine from the rear side. It is perspective explanatory drawing which showed the control apparatus from the rear surface side. It is explanatory drawing which showed the rear surface of the control apparatus. It is sectional explanatory drawing of a control apparatus, Comprising: (a) is AA sectional view, (b) is BB sectional drawing, (c) is CC sectional drawing, (d) is (c) It is a principal part enlarged view inside. It is perspective explanatory drawing which showed the state which decomposed | disassembled the control apparatus. FIG. 4 is an enlarged perspective view illustrating an inner case in a disassembled state and a main control board. It is explanatory drawing which showed the base member, Comprising: (a) is explanatory drawing shown from back, (b) is a perspective explanatory drawing. It is explanatory drawing which showed the crimping cover member, Comprising: (a) is the perspective explanatory drawing shown from upper direction, (b) is the perspective explanatory drawing shown from the downward direction. It is explanatory drawing which showed the aspect of screwing of an inner case and an outer case. It is explanatory drawing which showed the state which assembled | attached the inner case to the base member. It is perspective explanatory drawing which showed the screw for fraud prevention.

Explanation of symbols

  1 .. Pachinko machine, 20 .. Control device, 21 .. Main control board, 22 .. Inner case, 23 .. Outer case (case), 31 .. Front case member, 32 .. Rear case member (inner cover ), 32a .. bulging portion, 36 .. scissors piece (saddle-like rib piece), 37 .. retaining piece (stub-like rib piece), 41 .. base member, 42 .. caulking cover member (cover Member), 44 .. Fraud prevention screw, 49 .. Screw receiving part, 52b .. Pressing rib, 53 .. Side function part (protrusion), 53a .. Screw insertion part, 53b. Ridges), 53c..reinforcing ribs (projection ridges), 53d..connection wall, 56..identification seal, 61..screw member, 62..core member.

Claims (3)

A control device that is installed in a gaming machine and incorporates a board that controls the operation of the gaming machine in a case that is assembled by sliding a cover member in a predetermined direction on the rear surface of the base member,
While fixing the inner cover having a bulging portion covering the element installation surface of the substrate to the rear surface of the base member,
On the front surface of the cover member, a pair of ridges composed of a plurality of ribs continuous in a lattice shape formed in parallel along the sliding direction are erected,
The cover member is covered with the inner cover by guiding the opposing surface of the ridge portion to the outer peripheral surface of the bulge portion and sliding the ridge portion between the ridge portions. And can be assembled to the base member .
A rib-shaped rib piece protrudes from the outer peripheral surface of the inner cover, and a part of the rib forming the ridge is brought into contact with or close to the rib piece in the assembled state of the cover member. Control device.   2. The control according to claim 1, wherein, in the assembled state of the cover member, a tip end portion of the ridge portion on the inner cover side is in contact with a surface of a peripheral edge of the bulging portion of the inner cover. apparatus. A gaming machine comprising the control device according to claim 1 or 2 .

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