JP5411016B2 - Board case - Google Patents

Description

  The present invention relates to a structure of a board case that houses therein a control board on which a control circuit for controlling the operation of a gaming machine such as a pachinko machine is formed.

Conventionally, various game machines such as pachinko machines have been used to provide entertainment for people.
For example, when a predetermined combination of symbols is displayed on a symbol variation display device in which a plurality of types of symbols are variably displayed, a pachinko machine gives the player an interest in a gaming state that is advantageous to the player. It is intended to provide entertainment.
In such a pachinko machine, various control devices for controlling the symbol variation display device, the prize ball payout device, and the like as the game progresses are arranged on the back side of the game board as viewed from the player.

Such a control device is configured by mounting on a control board an electronic component such as a ROM storing a program for controlling a game operation and an LSI serving as a CPU for executing the program stored in the ROM.
For example, a main control board or a control board called a main board is equipped with a ROM in which game machine control software is written, and has a role as a central control device for comprehensively controlling the operation of the game machine. ing. The payout control board has a role of controlling the operation of the ball payout device.
For this reason, the control board of the gaming machine is likely to be subject to acts such as replacement with a counterfeit ROM and addition / deletion of illegal circuits.
In order to prevent such improper conduct and provide a fair game, these control boards are made of a transparent resin material, and a base body having a box shape with one side opened, and the base body. Unauthorized opening that is accommodated in a substrate case composed of a box-like lid that closes the opening of the door and is locked in a closed state in which the substrate case is closed, leaving traces when the case is opened A prevention mechanism is provided.

For this reason, for joining the base body and the lid body, a dedicated coupling tool, for example, a barb-shaped main body part at the front end is formed with a return portion projecting obliquely rearward from the front end part. The end is formed with a flange that extends radially outward.
On the other hand, each of the base body and the lid is formed with an insertion hole that communicates with each other when the base body and the lid are combined.
The above-mentioned coupler is inserted through this insertion hole. When the tip of the main body portion is inserted through the insertion hole, the coupler is elastically deformed from a state where the return portion is expanded to a narrowed state, and returns to the original expanded state after passing through the communication hole. ing.

Then, the base body and the lid body are sandwiched between the return portion and the collar portion of the coupler, and are thereby coupled to each other.
At this time, if the return portion of the coupling tool is left exposed on the surface of the substrate case, even after the base body and the lid body are joined, the return portion of the coupling tool is operated to release the locking by the return portion. Thereby, the substrate case can be opened.
In addition, the substrate case is opened and an illegal process is performed on the control board. Thereafter, the control board subjected to the illegal process is returned to the inside of the substrate case, and the base body and the lid are joined again to form the board case. Even if is closed, there is no trace of opening the substrate case, and it is very difficult to find fraudulent acts on the substrate case.

  For this reason, the sealing member which seals the return part of a coupling tool is adhere | attached on the substrate case. In this way, unless the sealing member is peeled off from the substrate case, the return part of the coupler cannot be operated, and if the sealing member is peeled off from the substrate case, the substrate case is damaged and the trace remains. Thus, when the substrate case is illegally opened, the unauthorized opening of the substrate case can be easily found from the trace (see, for example, Patent Document 1).

JP 2004-73512 A

In the case of the substrate described above, if the sealing member is peeled off from the substrate case, the sealing member is destroyed and cannot be reused. When the board case is opened, the sealing member and the board case cannot be reused, and a new sealing member and board case must be used, which increases the repair cost of the gaming machine.
Here, if the main body portion of the coupler is cut, the substrate case can be opened without removing the sealing member from the substrate case. However, in order to connect the base body and the lid body again with the bonding tool, it is necessary to remove the fragments of the bonding tool remaining in the insertion hole, and eventually the sealing member must be peeled off from the substrate case. The operation of peeling off the sealing member is troublesome, and even if the substrate case is opened in this way, the sealing member is eventually peeled off, so that the trace remains as damage to the substrate case, and again the substrate case Cannot be reused.

In addition, if a structure in which the return portion of the coupling tool is sealed with a sealing member is adopted, the number of parts of the board case is increased, and the labor for bonding the sealing member is increased, which increases the manufacturing cost of the board case, and consequently the gaming machine. There is a problem that the manufacturing cost of the product increases.
The present invention has been made in view of the above-described problems of the prior art, and the object of the present invention is to eliminate the need for a sealing member as an independent part, and to reduce the cost. It is possible to provide a substrate case that can effectively utilize a narrow space of the above and has a sufficient tampering mechanism.

According to the first aspect of the present invention, there is provided a base body formed in a box shape having an opening on one side for accommodating therein a control board on which a control circuit for controlling the operation of the gaming machine is formed. And a lid formed in a box shape capable of closing the opening of the base body. When the base body and the lid are combined, the base body and the lid body A substrate case in which a storage chamber for storing the control substrate is formed, and a rod-shaped coupling tool is used for coupling the base body and the lid body combined with each other. A bottom part to which the control board is attached and a side wall part that is formed along the periphery of the bottom part and rises from the bottom part are provided, and the lid body includes a ceiling part that closes the opening of the base body, and the ceiling part Shape along the periphery of And a side wall portion that hangs down from the ceiling portion, and the coupler is provided with a main body portion formed in a rod shape and a tip portion of the main body portion, and protrudes obliquely rearward and spreads. A return portion that can be elastically deformed to a constricted state, and a flange portion that protrudes from a side surface of the rear end portion of the main body portion and whose outer peripheral edge extends radially outward from the front end of the return portion. The coupling tool is formed so as to be broken into a plurality of pieces. In order to insert the main body portion and the return portion of the coupling tool into one of the base body and the lid body. The inner diameter of the insertion hole is such that the body portion and the return portion can be inserted, and the flange portion cannot be inserted, and the other of the base body and the lid body Stenosis A return portion insertion hole through which the return portion can be inserted, and a size capable of accommodating the return portion that is formed to communicate with the insertion hole at the back of the insertion hole and that is expanded. A first return portion chamber having a first return portion chamber, and a first return portion chamber formed around the opening of the insertion hole that opens to face the first return portion chamber, so that the return portion that passes through the return portion insertion hole is locked back. A second return portion chamber having a size capable of accommodating the return portion in an expanded state, and is formed to communicate with the return portion insertion hole at the back of the locking portion and the return portion insertion hole; A second locking portion that is formed around the opening of the return portion insertion hole that opens to face the second return portion chamber, and locks the return portion that has passed through the return portion insertion hole so as not to be retractable; The internal space of the first return chamber and the second return chamber A first external discharge hole and a second external discharge hole respectively communicating with the external space; and a partition wall partitioning the storage chamber and the internal space of the first return portion chamber and the second return portion chamber. In the external discharge hole and the second external discharge hole, the extending direction extending toward the external space intersects the insertion direction of the return portion in the insertion hole and the return portion insertion hole. ,
The insertion hole and the return portion insertion hole are provided at positions corresponding to each other in the base body and the lid body, and when the base body and the lid body are combined so as to form the storage chamber, The insertion hole and the return portion insertion hole communicate with each other, and the coupling tool can be inserted therein, and in this state, the coupling tool inserted into the insertion hole and the return portion insertion hole. When the return portion is locked to the second locking portion, the return portion is sandwiched between the flange portion and the return portion of the coupler and coupled to each other. Among the plurality of broken pieces, the broken pieces including at least the return portion can be taken out through the first external discharge hole or the second external discharge hole, and the first external Discharge hole and (2) The external discharge hole is formed so as to be entirely covered by one side wall portion of the base body and the lid body when the base body and the lid body are coupled to each other by the coupling tool. To do.
Here, the “debris including at least the return portion” means, for example, a debris that is a part or all of the return portion, or a debris that is a return portion and the remaining portion is another part. Okay, in short, a piece containing a part of the return part.

The invention described in claim 2 is the invention described in claim 1, and has the following characteristic points.
That is, in the invention according to claim 2, the opening surfaces of the first external discharge hole and the second external discharge hole correspond to the thickness of the side wall portion covering the first external discharge hole and the second external discharge hole. The side body of the base body and the lid body is provided with a tongue portion extending from the side wall portion at a part thereof, and the base body and the lid body are provided by being shifted to the inside of the storage chamber by a distance. When the base body and the lid body are coupled to each other with the coupling tool, the tongue portion is formed so as to cover the entire opening surface, and the side wall portion other than the tongue portion is formed on the base body and the lid body. The ends of the side walls of the lid are formed so as to contact each other.

The invention described in claim 3 is the invention described in claim 2 described above, and has the following characteristics.
That is, in the invention described in claim 3, the base body and the lid body are combined to form a storage chamber having a rectangular internal space for storing the control board inside the base body and the lid body. In this case, the side surface portion on the long side of the rectangular internal space is formed by overlapping a part of the side wall portion of the base body and the lid body, and the side surface portion on the short side side is formed on the base side. The body and the end of the side wall of the lid are formed by abutting each other.

The present invention configured as described above has the following effects.
That is, the base body and the lid that form the substrate case are provided with an insertion hole and a return part insertion hole, respectively, and the first engagement part and the second engagement part that engage the return part of the coupling part around these openings. Since the stop portions are provided, when the base body and the lid body are combined so as to form the storage chamber, the insertion hole and the return portion insertion hole communicate with each other, and in this state, the coupler is inserted into the insertion hole and the return portion. When inserted into the insertion hole, the return portion of the coupler passes through the insertion hole and the return portion insertion hole and is inserted into the second return portion chamber. In this state, since the return portion is locked by the second locking portion, the base body and the lid body are sandwiched between the collar portion and the return portion of the coupling tool, whereby the base body and the lid body are Will be combined.

In addition, since the first external discharge hole and the second external discharge hole that respectively connect the first return portion chamber and the second return portion chamber and the external space are provided, when the substrate case is opened, in other words, the lid body is removed from the base body. When it is removed, the return portion of the coupler is locked by the second locking portion, so that the coupler is broken, and fragments including the return portion of the coupler remain in the second return portion chamber. At this time, even if the return portion passes through the return portion insertion hole, it is again locked by the first locking portion of the first return portion chamber, so that the first locking portion can securely In such a case, debris including the return portion of the coupler remains in the first return portion chamber. As described above, when the substrate case is opened, the coupling portion is surely broken by the second locking portion and / or the first locking portion, and the fragment including the return portion in the second return portion chamber and / or the first return portion chamber. Will surely remain, so that an open trace will be reliably left.
The debris remaining in the second return portion chamber or the first return portion chamber in this way is not scattered to the storage chamber side by opening the base body and the lid body, and the second external discharge hole or the first external portion, respectively. It can be easily discharged to the outside through the discharge hole. As a result, even if the substrate case is opened for repair of the control board, the broken pieces of the broken coupler can be easily removed, and there is no need to peel off the adhered sealing member as in the past. The substrate case can be easily closed, and the substrate case can be reused, thus reducing the repair cost.

In addition, both the first external discharge hole and the second external discharge hole for discharging the broken pieces of the broken coupler are obtained by connecting the base body and the lid body to each other with the coupler. Since the whole is covered with the side wall provided on one side, there is no need to provide a sealing member for sealing the return portion of the coupler as an independent component.
Furthermore, if the base body and / or the cover body are formed of a transparent synthetic resin, it is possible to visually check whether or not debris remains in the first return chamber or the second return chamber. It can be confirmed from the outside that the coupler has been destroyed by illegally opening the case.
In this way, since the trace of the opening of the substrate case can be left, it is easy to find an illegal act against the substrate case. Therefore, it is not necessary to provide the sealing member as an independent part, and not only the above-described repair cost is reduced, but also the number of parts is reduced, so that the manufacturing cost of the substrate case can be reduced.

Further, according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the following effect is obtained.
That is, the opening surfaces of the first external discharge hole and the second external discharge hole are shifted toward the inside of the storage chamber by a distance corresponding to the thickness of the side wall portion covering the first external discharge hole and the second external discharge hole. When the base body and the lid body are coupled to each other with a coupling tool, the tongue portion of the side wall portion is formed so as to cover the entire opening surface, and in the side wall portion other than the tongue portion, the base body and Since the end portions of the side wall portion of the lid body are in contact with each other, the space of the storage chamber formed inside can be maximized with respect to the outer size of the base body and the lid body, It is possible to effectively utilize the limited space on the back side of the aircraft. In addition, since the side wall portions of the base body and the lid body do not overlap each other in the side wall portions other than the tongue, the material cost can be reduced and the manufacturing cost of the substrate case can be reduced.

Further, according to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the following effect can be obtained.
That is, when trying to act illegally without opening the case to the board case, it is possible to pry the side wall of the board case and insert foreign objects through the gap, but because the side wall length is large, deformation (that is, The side wall of the long side, which is considered to be relatively easy to open, is formed so that part of the side wall portions of the base body (61) and the lid body (62) overlap each other. Cannot be easily inserted, and the side wall of the short side is not easily deformed because the side wall length is short. In addition, foreign matter cannot be easily inserted from the short side wall.
Therefore, it is possible to achieve both a reduction in material costs and a sufficient response to fraud.

1 is a front perspective view of a pachinko gaming machine according to an embodiment of the present invention. It is a front view from the back surface of the pachinko gaming machine according to the embodiment. It is a disassembled perspective view of the back surface of the pachinko gaming machine according to the embodiment. It is a front view in the state (state which attached the substrate case) which removed the protective cover of the back of the pachinko game machine concerning the embodiment. It is a perspective view from the side of the substrate case concerning the embodiment. It is a perspective view from the lower part of the substrate case which concerns on the said embodiment. It is a front view of the substrate case which concerns on the said embodiment. It is sectional drawing in the AA of FIG. It is sectional drawing in the CC line of FIG. It is a perspective view of the lock pin which is a coupler concerning the embodiment. It is a top view of the lock pin which is a coupler concerning the embodiment. It is sectional drawing in the VII-VII line of FIG. FIG. 6 is a partially enlarged perspective view of FIG. 5. FIG. 7 is a partially enlarged perspective view of FIG. 6. It is a partial expanded sectional view in the BB line of FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a perspective view of the pachinko gaming machine 1 according to the present embodiment as viewed from the player side (front side).
As shown in FIG. 1, the pachinko gaming machine 1 is rotatably supported by a machine frame 2 installed in an island facility of a game arcade and a hinge 2a on the right side of the machine frame 2 (left side in FIG. 1). A front frame 3, a glass door 4 whose right side is rotatably supported by the front frame 3, and an integrated dish unit 5 formed by integrating a tray 6, a launch handle 7, and the like are provided.

    A game board 8 is fitted in the front frame 3, and an accessory device including a liquid crystal display device or a prize device is arranged on the game board 8 (not shown). In addition, the glass door 4 is provided with a speaker 11, an illumination device 12, and the like, which are used for various effects such as video, sound, and light together with the accessory device as the game progresses.

And on the back side of the pachinko gaming machine, various control boards and a number of devices for controlling the game ball are incorporated for the control of such effects and the control of the game ball.
As shown in FIGS. 2 and 3, the front frame 3 is attached to the machine frame 2 on the back side of the game board of the pachinko gaming machine, and the game board (not shown) is attached to the front side of the front frame 3 as described above. And a glass door 4, and a back cover 30 for protecting a storage ball tank 21, a prize ball payout device 22 for paying out a required amount of game balls from the storage tank 21, a liquid crystal display device, and the like. ing. In addition, a prize ball payout control device, an acoustic control device, a lamp control device, a game ball launch control device, and the like are also provided.

In addition, a main control board (main control device) configured with a control circuit for managing electronic lottery, prize ball payout, etc. and controlling the flow of games, a memory for storing video for presentation displayed on the liquid crystal display device, A sub-control board (sub-control device) having an image reproduction circuit and the like is housed in the board case 23 and disposed in the back cover 30.
In this way, the back side of the pachinko gaming machine is a very narrow space because it is necessary to incorporate a large number of devices within the physical limits of a machine frame of a predetermined size.

  And in order to prevent the illegal act with respect to these control boards and to enable reuse, as shown in FIG. 5, the board case 23 is a box which can be divided into a base body 61 and a lid body 62. It has a storage chamber for storing a main control board, a sub control board, and the like, and can be sealed in a closed state.

As shown in FIG. 4, the board case 23 is fixed to the back surface of the gaming machine by ears 64 and 64 ′ provided on the upper and lower side edges of the base body 61 in FIG. 5. And the liquid crystal panel which comprises the screen of a liquid crystal display device is engage | inserted by the back side of the base body 61 in FIG.
And it is comprised so that the whole may be protected by the back cover 30 from the state shown in FIG.

Here, the base body 61 has a bottom portion 61A that forms the bottom surface of the storage chamber 65, and a side wall portion 61B that is formed along the periphery of the bottom portion 61A and rises from the bottom portion 61A.
In addition, the base body 61 has a bottom 61A formed in a rectangular plan shape, and a boss 66 or the like is erected on the bottom 61A for mounting a control board.
On the other hand, the lid body 62 is formed by molding a transparent synthetic resin. The lid body 62 has an opening on one side and is formed in a box shape capable of closing the opening of the base body 61.
The lid body 62 is provided with a ceiling portion 62A that closes the opening of the base body 61, and a side wall portion 62B that is formed along the periphery of the ceiling portion 62A and hangs down from the ceiling portion 62A.

In such a substrate case 23, when the base body 61 and the lid body 62 are combined, a storage chamber 65 for storing the control board is formed inside the base body 61 and the lid body 62.
Further, the base case 61 and the lid 62, which are combined with each other, are coupled to each other by a lock pin 90 that is a rod-shaped coupling tool and a screw 26 that is a rod-shaped coupling tool. ing.
Furthermore, as shown in FIG. 7, the board case 23 is fixed to the back of the gaming machine in a horizontally long state, and the upper and lower long sides of the base body 61 are played by the ears 64 and 64 ′. The base body 61 and the lid body 62 are fixed to the back surface of the machine, and the base body 61 and the lid body 62 are fixed to each other with the right side part of the short side part being fixed around the rotation center, while the left side part is fixed with the lock pin 90. ing.

  The substrate case 23 slides on the side wall portion 61B of the base body 61 and the side wall portion 62B of the lid body 62 with the inner side of the bottom portion 61A of the base body 61 and the inner side of the ceiling portion 62A of the lid body 62 facing each other. Or it has the general box structure in which opening and closing operation is performed by making it contact.

As shown in FIG. 8, the lid 62 has a side wall portion 62 </ b> B that is engaged with a locking curved portion 68 provided on the right side 62 c of the side wall portion 62 </ b> B. A right side portion 62c of the portion 62B is attached to the base body 61.
That is, the right side portion 62c of the side wall portion 62B provided on the lid body 62 side is formed with a plurality of locking curved portions 68 bent toward the outside of the lid body 62 as shown in FIGS. It has become.
These locking curved portions 68 are spaced apart from each other along the longitudinal direction of the right side portion 62c as shown in FIG.

On the other hand, as shown in FIGS. 6 to 8, the base body 61 includes the locking curved portion 68 on the upper edge of the side wall portion 61 </ b> B of the base body 61 corresponding to the locking curved portion 68 on the lid body 62 side. There is provided a locking portion 69 that has an insertion slit to be inserted into the locking portion and that locks the locking curved portion 68.
In the state in which the locking curved portion 68 is inserted through the insertion slit, the locking curved portion 68 is locked to the locking portion 69, and as shown in FIG. However, in the right side part (61c, 62c), it becomes possible to turn around the contact point of the locking part 69B and the locking curved part 68, and the left side part (61a, 62a) opens and closes to open and close the storage chamber 65. Can be opened or closed.
On the other hand, the lid 62 can be rotated in the clockwise direction in FIG. 8 to allow the latching curved portion 68 to escape from the latching portion 69. When the portion 68 is escaped, the locking by the locking portion 69 of the locking curved portion 68 is released, and the lid body 62 can be separated from the base body 61.

As shown in FIGS. 10 to 12, the lock pin 90 is provided at a stem portion 91 which is a main body portion formed in a rod shape, and a tip portion positioned below the stem portion 91, and a return protruding obliquely rearward. A portion 92 and a flange portion 93 protruding from the side surface at the rear end portion of the stem portion 92 are provided. When the lock pin 90 connects the lid body 62 and the base body 61, the stem portion 91 is inserted into a hole penetrating these members, and the return portion 92 and the flange portion 93 sandwich these members. Therefore, they are combined.
As shown in FIGS. 10 and 12, the stem portion 91 is located on the rear end side and has a straight portion 91A having a constant thickness, and is located on the front end side and has a flat plate shape having a width corresponding to the diameter of the straight portion 91A. The flat plate portion 91B is formed between the straight portion 91A and the flat plate portion 91B, and the size reduction portion 91C is gradually narrowed between the two inclined planes.

The return portion 92 is integrally formed with the stem portion 91 so as to be elastically deformable from a state of spreading outward in the radial direction of the stem portion 91 to a state of being narrowed.
That is, the return portion 92 includes a thin-walled portion 92A having a thin thickness in the vicinity of a connection portion with the flat-plate portion 91B formed on the stem portion 91, and a flat plate-like shape positioned on the tip side of the thin-walled portion 92A. And a swinging portion 92B. The return portion 92 is configured such that the swinging portion 92B can swing within a predetermined angle range by elastically deforming the thin portion 92A.
Here, the flat plate portion 91B of the stem portion 91 forms a relief for avoiding interference with the swinging portion 92B when the swinging portion 92B of the return portion 92 swings in the approaching direction. .

As a result, when the thin portion 92A is elastically deformed and the swinging portion 92B swings, the return portion 92 can swing the swinging portion 92B to a position almost in contact with the flat plate portion 91B of the stem portion 91. When the swinging portion 92B swings to a position substantially in contact with the flat plate portion 91B of the stem portion 91, the stem portion 91 is formed so as to be almost entirely within the range of the outer dimensions of the stem portion 91.
The thin-walled portion 92A has a thickness that can be surely cut with a sufficiently small external force when an external force that swings the swinging portion 92B in the rotational direction away from the flat plate portion 91B of the stem portion 91 is applied to the swinging portion 92B. It has become.
The return portion 92 is configured such that the thin portion 92A is cut when the swinging portion 92B is swung by a predetermined swinging angle or more in the rotational direction away from the flat plate portion 91B of the stem portion 91.

As a result, the lock pin 90 is swung in the rotational direction in which the swinging portion 92B moves away from the flat plate portion 91B, and the swinging portion 92B is separated from the stem portion 91 when the swinging angle becomes larger than a certain degree. In other words, it is formed so as to be broken into a plurality of pieces.
As shown in FIGS. 10 to 12, the flange portion 93 has a larger outer peripheral edge than the distal end of the return portion 92, and extends outward in the radial direction of the stem portion 91.
As shown in FIG. 11, the flange 93 protrudes from the outer peripheral surface of the annular ring portion 93 </ b> A whose outer peripheral edge is located outside the tip of the return portion 92 and the straight portion 91 </ b> A of the stem portion 91. , A spoke portion 93B for connecting the ring portion 93A to the straight portion 91A of the stem portion 91 and a tag portion 93C formed so as to protrude radially outward from the ring portion 93A are provided.

Here, the spoke part 93B is formed in a thin strip shape. In other words, the spoke portion 93B has a thickness that can be reliably cut with a sufficiently small external force when an external force that moves the ring portion 93A along the axial direction of the stem portion 91 is applied to the ring portion 93A.
Then, the flange portion 93 is configured such that when the tag portion 93C is pulled along the axial direction of the stem portion 91, the ring portion 93A is moved along the axial direction of the stem portion 91, and the movement distance increases to some extent. The part 93B is cut off.
Thus, the lock pin 90 is configured such that the ring portion 93A is separated from the stem portion 91 when the ring portion 93A is moved by a predetermined movement distance or more along the axial direction of the stem portion 91, in other words, It is formed so as to be broken into a plurality of pieces.

The substrate case 23 is fixed to the back of the gaming machine by the ear portions 64 and 64 ′ provided on the upper and lower long side portions 61 b and 61 d of the base body 61. Among these, the right side portions 61 c and 62 c are fixed to each other as the rotation center, whereas the left side portions 61 a and 62 a are fixed by the lock pin 90.
Therefore, as shown in FIG. 5, the lock pin 90 includes a portion (A portion) located in the upper left corner of the side wall portion 62B of the lid body 62 in FIG. 5 and a side wall portion 61B of the base body 61 in FIG. A portion (A ′ portion) located in the upper left corner is mutually coupled.
Similarly, a part (B part) located in the lower left corner in FIG. 5 in the side wall part 62B 1 of the lid 62 and a part located in the lower left corner in FIG. 5 in the side wall part 61B of the base body 61 ( B ′) are mutually coupled.
Therefore, first, a connection state in the A part-A ′ part will be described.

As shown in FIGS. 5, 13, and 15, the coupled portion 27 </ b> A provided on the lid portion 62 side of the A portion forms the bottom surface of the concave portion 29 recessed inward from the surface of the ceiling portion 62 </ b> A of the lid body 62. It has become a thing.
As shown in FIG. 9, the coupled portion 27 </ b> A includes a lock pin insertion hole 70 for inserting a stem portion 91 and a return portion 92 of a lock pin 90 that is a coupling tool, a base body 61 and a lid body 62. And a screw insertion hole 71 through which a screw for fixing the screw is inserted.

On the other hand, the coupling portion 28A provided on the base body 61 side so as to face the coupled portion 27A is formed on the left side portion 61a that is the short side portion of the side wall portion 61B, as shown in FIG. It is formed to project from the inner surface of 61a toward the storage portion 65.
In the coupling portion 28A, as shown in FIG. 15, the return portion of the lock pin 90 inserted into the lock pin insertion hole 70 at a position corresponding to the lock pin insertion hole 70 formed on the lid 62 side. A return portion insertion hole 72 for inserting 92 is provided, and a screw threaded portion 73 that is screwed into the screw 26 inserted from the screw insertion hole 71 formed on the lid 62 side.

Here, the lock pin insertion hole 70 and the return portion insertion hole 72 are provided at positions corresponding to each other in each of the base body 61 and the lid body 62.
When the base body 61 and the lid body 62 are combined to form the substrate case 23, the lock pin insertion hole 70 and the return portion insertion hole 72 communicate with each other, and the lock pin 90 is connected to the lock pin insertion hole 70. And the return part insertion hole 72 can be inserted.

Here, the inner diameters of the lock pin insertion hole 70 and the return portion insertion hole 72 are such that the stem portion 91 and the return portion 92 of the lock pin 90 can be inserted, and the flange portion 93 of the lock pin 90 cannot be inserted. Yes.
The return portion insertion hole 72 is provided in the base body 61 so that the inside can be inserted in a state where the return portion 92 of the lock pin 90 is narrowed, and the inlet side of the return portion 92 is wider than the outlet side. It is a tapered hole.
Below the retaining portion 72A in which the lock pin insertion hole 70 is formed, a space in which the return portion 92 of the lock pin 90 can be accommodated between the coupling portion 28A provided in the base body 61. A one-turn section chamber 74A is formed.
On the other hand, below the retaining portion 72B in which the return portion insertion hole 72 is formed, a second return that is a space in which the return portion 92 of the lock pin 90 can be accommodated between the bottom surface 61A of the base body 61. A partial chamber 74B is formed.
Then, a return portion 92 of the lock pin 90 formed around the opening facing the first return portion chamber 74A of the lock pin insertion hole 70 and passing through the lock pin insertion hole 70 is formed in the fastening portion 72A of the lid 62. A first locking portion 75A to be locked is provided, and the fastening portion 72B of the base body 61 is formed around the opening of the return portion insertion hole 72 facing the second return portion chamber 74B. A second locking portion 75B for locking the return portion 92 of the lock pin 90 that has passed through is provided.

The first return portion chamber 74A is formed so as to communicate with the lock pin insertion hole 70 at the back of the lock pin insertion hole 70, and has a size capable of accommodating the return portion 92 of the lock pin 90 in an expanded state. It is a room.
The second return portion chamber 74B is formed so as to communicate with the return portion insertion hole 72 at the back of the return portion insertion hole 72, and has a size capable of accommodating the return portion 92 of the lock pin 90 in an expanded state. It is a room.
As described above, the first locking portion 75A is formed around the opening of the lock pin insertion hole 70 that opens toward the first return portion chamber 74A, and the return of the lock pin 90 that has passed through the lock pin insertion hole 72. The portion 92 is locked so that it cannot be retracted.
As described above, the second locking portion 75B is formed around the opening of the return portion insertion hole 72 that opens toward the second return portion chamber 74B, and the return of the lock pin 90 that has passed through the return portion insertion hole 72. The portion 92 is locked so that it cannot be retracted.
When the return portion 92 that has passed through both the lock pin insertion hole 70 and the return portion insertion hole 72 is locked to the second locking portion 75, the lock pin 90 is interposed between the flange portion 93 and the return portion 92. The coupled portion 27A on the lid 62 side and the coupled portion 28B on the base body 61 side are sandwiched from both sides, thereby coupling the coupled portion 27A and the coupled portion 28B.

Here, a first external discharge hole 76A for opening the internal space of the first return portion chamber 74A to the external space is opened on the side surface of the left side portion 62a of the side wall portion 62B provided on the lid body 62 side. A second external discharge hole 76B for communicating the internal space of the second return chamber 74B with the external space is opened on the side surface of the left side 61a of the side wall 61B provided on the body 61 side.
The first external discharge hole 76A and the second external discharge hole 76B allow the internal space of the first return part chamber 74A and the second return part chamber 74B to communicate with the external space, and from the first return part chamber 74A and the second return part chamber 74B. The extending direction extending toward the external space is a hole in a direction intersecting with the insertion direction of the return portion in the lock pin insertion hole 70 and the return portion insertion hole 72.

When the base body 61 and the lid body 62 are combined so as to form the storage chamber 65, as described above, the lock pin insertion hole 70 and the return portion insertion hole 72 communicate with each other, and the lock pin insertion hole 70 and the return body are returned. The lock pin 90 is formed so as to be inserted into the inside of the part insertion hole 72.
Then, when the lock pin 90 is inserted into the lock pin insertion hole 70 and the return portion insertion hole 72 and the return portion 92 is locked to the second locking portion 75, the base body 61 and the lid body 62 are: The lock pin 90 is sandwiched between the flange portion 93 and the return portion 92 so as to be coupled to each other.
At that time, as shown in FIG. 9, the tag 93 </ b> C of the lock pin 90 is guided by the tag guide 40 formed on the upper surface of the coupled portion 27 of the lid 62, with the connecting portion 93 </ b> D connected to the lock pin 90. The top surface of the screw insertion hole 71 of the lid 62 is configured to be covered.

When a force for pulling out the lock pin 90 that couples the coupled portion 27A and the coupling portion 28B from the lock pin insertion hole 70 is applied, the ring portion 93A of the flange portion 93 separates from the stem portion 91, or the return portion 92. The swinging portion 92B is separated from the stem portion 91. In other words, the swinging portion 92B is formed so as to be broken into a plurality of pieces.
Accordingly, when the lock pin 90 is pulled out, the return portion 92 is locked to the second locking portion 75B, so that the swinging portion 92B is separated into fragments, and the fragments are left in the second return portion chamber 74B. It becomes. At that time, even if the swinging portion 92B does not become a fragment and passes through the return portion insertion hole 72 and enters the first return portion chamber 74A, the return portion 92 is locked so as not to be retractable. The lock portion 92B is again locked by the one lock portion 75A, so that the swinging portion 92B is reliably separated, and the fragments are left in the first return portion chamber.
In any case, the swinging portion 92B of the return portion 92, which is a broken piece, can be taken out to the outside through the first external discharge hole 76A and / or the second external discharge hole 76B.

Further, as shown in FIG. 13, a tongue 62D that hangs down in the same plane as the side wall 62B is provided below the left side 62a of the side wall 62B provided on the lid 62 side.
On the other hand, the left side portion 61a of the side wall portion 61B of the base body 61 has the side walls facing the first external discharge hole 76A and the first external discharge hole 76B removed, and the opening of the first return portion chamber 74A and the second return portion chamber 74B. Is formed.
When the base body 61 and the lid body 62 are coupled to each other by the lock pin 90, the tongue 62D is fitted into the removed side wall portion so that the opening is closed.
Furthermore, when the lower end edge 62a ′ of the side wall portion 62a of the lid body 62 and the upper end edge 61a ′ of the side wall portion 61a of the base body 61 are in contact with each other, the left side surface of the substrate case is separated from the side wall portion 61B of the base body 61 and the lid body. The same plane is formed by the side wall 62B of 62.
Accordingly, the opening surfaces of the first external discharge hole 76A and the second external discharge hole 76B have a distance corresponding to the thickness of the side wall portion covering the first external discharge hole 76A and the second external discharge hole 76B. When the base body 61 and the lid body 63 are coupled to each other by the coupler 90, the side wall tongue 62D is formed so as to cover the entire opening surface. In the side wall portions other than 62D, the edge portions 61a ′ and 62a ′ of the left side wall portions 61a and 62a of the base body 61 and the lid body 62 are formed so as to contact each other.
At this time, as shown in FIG. 13, the edge portions 61 a ′ and 62 a ′ of the left side wall portion 62 a on the lid body 62 side and the left side wall 61 a of the base body 61 are subjected to so-called phase peeling processing. When the left side wall 61a of the base body 61 and the left side wall 62a of the lid 62 are joined, the processed parts 62a '', 61a '' are provided. By overlapping each other, a gap is not formed at the joint portion.
This prevents unauthorized access from the left side wall.

Further, the base body 61 is provided with a partition wall 77 that partitions the storage chamber 65 from the internal space of the first return portion chamber 74A and the second return portion chamber 74B.
In the partition wall 77, when the lock pin 90 is broken into a plurality of pieces and the swinging portion 92B of the return portion 92 is separated from the stem portion 91, the swinging portion 92B of the return portion 92 that is a plurality of broken pieces. However, it is closed so as not to enter the storage chamber 65.

Next, a part (B part) located in the lower left corner in FIG. 5 in the side wall part 62B 1 of the lid 62 and a part (B ′) located in the lower left corner in FIG. 5 in the side wall part 61B of the base body 61 ) Will be described.
As shown in FIG. 9 which is a CC cross-sectional view in FIG. 7 and FIG. 14 which is a perspective view of the BB ′ portion, the coupling portion 28B on the base body 61 side is coupled to the aforementioned AA ′ portion. Although it is formed in the same manner as the portion 28A, the coupled portion 27B on the lid 62 side is different from the coupled portion 27A in the configuration of the side wall portion 62B.

In the coupling portion 27B of the lid body 62, the lower side portion 62b of the side wall portion 62 can cover the entire lower side portion 61b of the side wall portion 61B of the base body 61, up to the lower edge portion 62b ′ of the lower side portion 62b. The width is set.
A portion 62b '' of the lower side portion 62b that faces the openings of the first external discharge 76A hole and the second external discharge hole 76B is formed in a concave shape corresponding to the thickness of the lower side portion 61b of the base body 61. Has been.
Therefore, in a state where the coupled portion 27B of the lid body 62 and the coupling portion 28B of the base body 61 are coupled by the lock pin 90, the concave portion 62b '' is formed between the first external discharge hole 76A and the second external discharge hole 76B. It fits into the opening and covers the opening. Further, since the entire side wall portion 61B of the base body 61 is covered with the side wall portion 62B of the lid body 62 at the lower side portion, unauthorized access from the lower side surface, that is, the lower side to the substrate case 23 in the coupled state. Can be eliminated.

  Further, as shown in FIGS. 5 and 9, when the base body 61 and the lid body 62 are coupled together, the upper side surface of the base body 61 is connected to the entire upper side surface 61 d of the base body 61. The surface 62d is configured to cover. Therefore, in the coupled state, unauthorized access from the upper side surface of the substrate case 23, that is, from above can be eliminated.

According to this embodiment as described above, the following effects can be obtained.
That is, a return portion insertion hole 72 and a lock pin insertion hole 70 are provided in each of the base body 61 and the lid body 62 forming the substrate case 23, and communicated with the lock pin insertion hole 70 at the back of the lock pin insertion hole 70. The first return portion chamber 74A is provided, and the return portion 92 of the lock pin 90 is locked around the opening of the lock pin insertion hole 70 facing the first return portion chamber 74A. In addition, a second return portion chamber 74B communicating with the return portion insertion hole 72 is provided, and the return portion 92 of the lock pin 90 is locked around the opening of the return portion insertion hole 72 facing the second return portion chamber 74B. Therefore, when the base body 61 and the lid body 62 are combined so as to form the storage chamber 65, the lock pin insertion hole 70 and the return portion insertion hole 72 communicate with each other. When the return portion 92 passes through the return portion insertion hole 72 after being inserted into the lock pin insertion hole 70 and the return portion insertion hole 72, the base body 61 and the lid body 62 become the flange portion 93 and the return portion of the lock pin 90. 92, so that the base 61 body and the lid body 62 can be coupled to each other, and in order to open the substrate case 90, in other words, the lid body 62 is removed from the base body 61. Therefore, when the lock pin 90 is pulled out, the return portion 92 is locked to the second locking portion 75B, so that the swinging portion 92B is separated into fragments, and the fragments are left in the second return portion chamber 74B. However, even if the swinging portion 92B does not become a fragment and passes through the return portion insertion hole 72 and enters the first return portion chamber 74A, it is again locked by the first locking portion 75A and swings. Part 92B is secure Since it is separated, case becomes that the debris is left in the first return-portion room, thus can be left securely an open trace.

  In addition, a first external discharge hole 76A and a second external discharge hole 76B extending from the first return portion chamber 74A and the second return portion chamber 74B toward the external space are provided, respectively, and the external spaces of the external discharge holes 76A and B are provided. Since the extending direction extending toward the direction intersecting the insertion direction of the return portion 92 in the return portion insertion hole 72 is, the board case 90 is opened, in other words, the lid body 62 is removed from the base body 61. Then, the lock pin 90 is broken, and a fragment (for example, the swinging portion 92B) including the return portion 92 of the lock pin 900 remains in the first return portion chamber 74A or the second return portion chamber 74B. Even if it is difficult to take out through the return portion insertion hole 72, the swinging portion 92B can be easily discharged to the outside through these external discharge holes 76A, B. Thus, even if the substrate case 23 is opened for repair of the image control board or the like, it is possible to easily remove the broken pieces (for example, the swinging part 92B) including the return part 92 of the broken lock pin 90. In addition, it is not necessary to peel off the adhered sealing member as in the prior art, and thereafter, the substrate case 24 can be easily closed, and the substrate case 23 can be reused, so that the repair cost can be reduced.

The external discharge holes 76A and 76B for discharging debris including the return portion 92 of the broken lock pin 90 are connected to the side wall of the cover body 62 when the base body 61 and the cover body 62 are coupled to each other by the lock pin 90. Since the whole is covered with the portion 62B, it is not necessary to provide a sealing member for sealing the return portion 92 of the lock pin 90 as an independent component.
Here, since the lid body 62 is formed of a transparent synthetic resin, it is possible to visually observe the destruction of the lock pin 90 due to the unauthorized opening of the substrate case 23, and thereby, the trace of the opening of the substrate case 23. Can be easily confirmed from the outside, so that it is easy to find an illegal act on the substrate case 23. Therefore, it is not necessary to provide the sealing member as an independent part, and not only the repair cost can be reduced, but also the number of parts can be reduced, so that the manufacturing cost of the substrate case 23 can also be reduced.

The substrate case 23 is configured such that the upper end edge 61a ′ of the side wall portion 61B of the base body 61 and the lid body 62 are in a state where the inner side of the bottom portion 61A of the base body 61 faces the inner side of the ceiling portion 62A of the lid body 62. The upper end edge 62a ′ of the side wall portion 62B is structured to face each other, and the tongue portion 62D of the side wall portion 62B of the lid body 62 is connected to the first portion 28A of the base body 61 in accordance with the opening / closing operation of the substrate case. Since the opening surfaces of the external discharge hole 76A and the second external discharge hole 76B are formed to open and close, the space of the storage chamber formed inside is maximized with respect to the outer size of the base body and the lid body. It is possible to effectively use the limited narrow space behind the gaming machine. In addition, since the side wall portions of the base body and the lid body do not overlap each other in the side wall portions other than the tongue, the material cost can be reduced and the manufacturing cost of the substrate case can be reduced.
In addition, the base body 61 is provided with a partition wall 77 that partitions the storage chamber 65 and the internal spaces of the first return portion chamber 74A and the second return portion chamber 74B, and the broken pieces of the lock pin 90 are stored in the partition wall 77. Since the inside of the chamber 65 is prevented from entering the inside of the chamber 65, it is possible to prevent the fragments of the lock pin 90 from entering a portion that is difficult to remove, such as between the control board of the storage chamber 65 and the base body 61. It is possible to easily remove the broken pieces of the lock pin 900, and from this point, the repair cost can be reduced.

  If it is attempted to cheat without opening the case to the board case, it is conceivable to pry the side wall of the board case and insert foreign objects through the gap. The side walls (61b, 62b, 621, 62d) that are considered to be relatively easy are formed so that part of the side wall portions of the base body 61 and the lid body 62 overlap each other. Since the foreign material cannot be easily inserted from the side wall, the short side walls (61a, 62a) are not easily deformed in the first place because the side wall length is short. By configuring the end portions of the side wall portions to contact each other, it is possible to achieve both a reduction in material costs and a sufficient response to fraud.

In addition, this invention is not limited to the said embodiment, The deformation | transformation in the range which can achieve the objective of this invention, improvement, etc. are included.
That is, in the said embodiment, although the penetration hole and the 1st latching | locking part for inserting the main-body part and return part of a coupling tool were formed in the cover body, it is not restricted to this, The main body of a coupling tool is not limited to this. You may form the insertion hole for inserting a part and a return part.
Moreover, in the said embodiment, the return part insertion hole into which the return part of a coupling tool can be inserted in the base body, the 1st and 2nd return part chamber which accommodates a return part, and the 1st which makes a return part latch. The first locking portion and the first and second external discharge holes extending from the first and second return chambers to the external space are formed. However, the present invention is not limited thereto. When the insertion hole for inserting the return portion is formed, the return portion insertion hole, the first and return portion chambers, the first locking portion, and the first and second external discharge holes are formed in the lid. May be.

Further, the control board is not limited to the image control board that controls the operation of the liquid crystal display device, but may be a main control board that controls the gaming operation of the gaming machine or a sub-control board that controls the rendering operation of the gaming machine.
In addition, the coupling tool is not limited to the hook part provided in the above embodiment so as to be separable, but may be one in which the collar part is formed integrally with the main body part and the collar part is difficult to separate. The specific structure and shape can be selected as appropriate in implementation.

  The gaming machine is not limited to a pachinko machine, and may be a slot machine or the like, and the present invention can be applied to all gaming machines including a board case that houses a control board on which an electronic circuit or the like is assembled. .

1 Pachinko machine
23 Board case
61 Base body
61A bottom
61B Side wall
62 Lid
62A Ceiling
62B Side wall
62D tongue
65 storage room
70 Lock pin insertion hole as insertion hole
72 Return insertion hole
74A 1st return club room
74B Second return room
75A 1st locking part
75B Second locking part
76A 1st external discharge hole
76B Second external discharge hole
77 partition wall
90 Lock pin as coupling
91 Stem as the body
92 Return section
92B Oscillating part
93

Claims (3)

A base body formed in a box shape with one side opened, and the base body with one side opened to house a control board on which a control circuit for controlling the operation of the gaming machine is formed. A box-shaped lid that can close the opening of the base, and when the base body and the lid are combined, the base board and the housing for housing the control board inside the lid A substrate case in which a bar-shaped coupling tool is used for coupling the base body and the lid body which are formed in a chamber and are combined with each other;
The base body is provided with a bottom portion to which the control board is attached, and a side wall portion that is formed along the periphery of the bottom portion and rises from the bottom portion,
The lid body is provided with a ceiling portion that closes the opening of the base body, and a side wall portion that is formed along the periphery of the ceiling portion and hangs down from the ceiling portion,
The coupler is provided with a main body part formed in a rod shape, and a return part provided at a tip part of the main body part, projecting obliquely rearward and elastically deforming from a widened state to a narrowed state, A flange that protrudes from the side surface at the rear end portion of the main body portion and whose outer peripheral edge extends radially outward from the tip of the return portion is provided.
The coupler is formed to be broken into a plurality of pieces,
One of the base body and the lid body is formed with an insertion hole for inserting the main body portion and the return portion of the coupler.
The inner diameter of the insertion hole is such that the main body portion and the return portion can be inserted, and the flange portion cannot be inserted,
On the other side of the base body and the lid, a return portion insertion hole through which the return portion in a narrowed state can be inserted is formed so as to communicate with the insertion hole at the back of the insertion hole. A first return portion chamber having a size capable of accommodating the return portion in a spread state, and the return portion insertion portion formed around the opening of the insertion hole that opens toward the first return portion chamber. A first locking portion for locking the return portion that has passed through the hole so as not to be retractable;
The second return portion chamber is formed so as to communicate with the return portion insertion hole at the back of the return portion insertion hole, and has a size capable of accommodating the return portion in an expanded state, and the second return portion chamber. A second locking portion that is formed around the opening of the return portion insertion hole that opens to face, and locks the return portion that has passed through the return portion insertion hole so as not to be retractable;
A first external discharge hole and a second external discharge hole for communicating the internal spaces of the first return portion chamber and the second return portion chamber with the external space, respectively.
A partition wall is provided to partition the storage chamber from the internal space of the first return portion chamber and the second return portion chamber;
Each of the first external discharge hole and the second external discharge hole has a direction in which the extending direction extending toward the external space intersects the insertion direction of the return portion in the insertion hole and the return portion insertion hole. And
The insertion hole and the return portion insertion hole are provided at positions corresponding to each other in each of the base body and the lid body,
When the base body and the lid body are combined so as to form the storage chamber, the insertion hole and the return portion insertion hole communicate with each other, and the coupling tool can be inserted therein. When the return portion of the coupler inserted into the insertion hole and the return portion insertion hole in the state is locked to the second locking portion, the flange portion and the return portion of the coupler Are formed so that they are sandwiched between and joined together,
When the coupler is broken into a plurality of broken pieces, a broken piece including at least the return portion among the broken pieces can be taken out through the first external discharge hole or the second external discharge hole. ,
The first external discharge hole and the second external discharge hole are entirely covered by one side wall portion of the base body and the lid body when the base body and the lid body are coupled to each other by the coupling tool. A substrate case formed.   The opening surfaces of the first external discharge hole and the second external discharge hole are shifted toward the inside of the storage chamber by a distance corresponding to the thickness of the side wall portion covering the first external discharge hole and the second external discharge hole. The base body and the lid body have a tongue portion extending from the side wall portion at a part thereof, and the base body and the lid body are connected to the coupling tool. The tongue portion is formed so as to cover the entire opening surface, and the side wall portions other than the tongue portion are connected to each other at the end portions of the side wall portion of the base body and the lid body. The substrate case according to claim 1, wherein the substrate case is formed so as to abut.   When the storage body having a rectangular internal space for storing the control board is formed inside the base body and the lid body by combining the base body and the lid body, the rectangular internal space is formed. The side surface portion on the long side is formed by overlapping a part of the side wall portion of the base body and the lid body, and the side surface portion on the short side side is an end of the side wall portion of the base body and the lid body. The board case according to claim 2, wherein the parts are formed by abutting each other.

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