JP2001347033A - Control board housing case for game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control board housing case for game machine capable of preventing an illicit action of replacing a ROM through a clearance formed by deforming a case body and a lid. SOLUTION: The case body 2 comprises an engagement hole 37 on a side plate part 2b constituting one edge pivotally fixed by a hinge mechanism 5, and the lid 4 comprises a locking piece to be inserted to the engagement hole in the closed state of the lid 4 on the reverse side. Therefore, the locking piece 38b of the lid 4 is inserted to the engagement hole of the side plate part 2b of the case body 2, whereby the position of the lid 4 is regulated in such a manner as not to be movable upward, so that the lid 4 cannot be deformed even if an external force is applied to the lid 4 to float it up. Accordingly, the illicit action of replacing the ROM through the clearance formed by deforming the lid 4 can be prevented on the hinge mechanism 5 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control board storage case for a game machine such as a pachinko machine and a slot machine.

[0002]

2. Description of the Related Art In game machines such as pachinko machines and slot machines, game control contents such as a jackpot occurrence probability are written in a ROM provided on a control board.
Is stored in a control board storage case including a case main body and a lid that covers an opening of the case main body.The control board is protected by the storage case, and the ROM is stored in the control board storage case. It is designed to prevent a fraudulent act of arbitrarily changing predetermined game control contents by exchange. Conventionally, the case body and the lid constituting this control board storage case are used in such a manner that they are separated from each other.In use, the control board is stored in the case body, and then the cover is attached to the case body. The peripheral edge including the two opposing side edges is fastened with a plurality of screws, and the boundary between the case body and the lid is sealed with a special seal that leaves a trace when peeled off.

[0003]

In the conventional control board storage case in which the case body and the cover are separated from each other, the cover removed during the control board storage or inspection work. Space must be provided because the body must be placed in a different location, and when attaching or detaching the lid, the screws must be tightened and removed on at least two opposite side edges of the lid. Therefore, there is a problem that the attachment / detachment is troublesome and the workability is poor.

[0004] The present invention solves such a conventional problem,
In addition, another object of the present invention is to provide a control board storage case for a gaming machine, which can prevent an illegal act of replacing a ROM from a gap generated by deforming a case body and a lid.

[0005]

According to the present invention, there is provided a case body accommodating a control board, a lid for shielding an opening of the case body, one side edge of the case body, and one side of the case body. In the control board storage case, which is rotatably connected to one edge of the lid corresponding to the edge via a hinge mechanism, one side edge of the case main body, which is hinged by the hinge mechanism, is formed. The present invention relates to a configuration in which an engagement hole is provided in a side plate portion, and a locking piece that is inserted into the engagement hole when the lid is closed is provided on the back surface of the lid.

In such a configuration, when the lid is closed, the locking piece of the lid is inserted into the engagement hole of the side plate of the case body, whereby the position of the lid is regulated, and the lid is closed. The body cannot be deformed by applying external force to lift it. Thereby, on the hinge mechanism side,
It is possible to prevent a fraudulent act of replacing the ROM from a gap generated by deforming the lid.

Further, the present invention includes a case main body in which a control board is stored, and a lid for shielding an opening of the case main body, wherein one side edge of the case main body corresponds to the one side edge. In a control board storage case in which one side edge of the lid is pivotally connected via a hinge mechanism, a closed state of the lid is obtained from one side edge of the lid pivotally connected by the hinge mechanism. A locking edge is extended along the outer surface near the outer surface of the side plate portion of the case body opposed to the above, and one or more locking edges are provided on the back surface of the lid in close proximity to the inner surface of the side plate portion. The present invention relates to a configuration in which projections are provided.

In this configuration, when the lid is closed, the side plate of the case body fits between the locking edge provided on the lid and the locking projection, thereby regulating the position of the side plate. However, even if an external force is applied to the side plate from the side, it cannot be deformed. As a result, on the hinge mechanism side, R is removed from the gap generated by deforming the side plate portion of the case body.
It is possible to prevent a fraudulent act of exchanging the OM.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.
7 will be described. In the drawings, reference numeral 1 denotes a control board storage case according to the present invention, and the control board storage case 1 is disposed at a predetermined position inside a pachinko machine back or inside a slot machine. The control board storage case 1 includes a case body 2 having a rectangular housing shape with an open top, and the case body 2.
And a lid 4 that shields the upper opening 3 of the main body. The case body 2 and the lid 4 are rotatably connected at two locations on one side edge along the longitudinal direction thereof by hinge mechanisms 5 and 5 described later, so that the lid body is 4 can be opened and closed in a one-sided manner.

A control board 6 is accommodated in the case body 2. As shown in FIG. 6, the control board 6 includes a printed wiring board 7 and a CPU, ROM, R
A game control content such as a big hit occurrence probability is written in the ROM. The bottom plate 9 of the case body 2 is opened substantially all over except for the peripheral edge, and the opening 10 is shielded by a transparent plate 11. The transparent board 11 protects the control board 6 and allows the soldered back surface 7 ′ of the printed wiring board 7 constituting the control board 6 to be seen from the bottom side of the case body 2. Further, the case main body 2 is formed of a synthetic resin containing carbon having conductivity, so that the control substrate 6 can be protected by preventing static electricity from being charged.

On the other hand, the lid 4 is formed of a transparent synthetic resin so that the electronic components 8 of the control board 6 housed in the case body 2 can be seen from above. Further, a transparent plate 13 having a conductive net surface 13 'on the lower surface is laminated on the back surface of the lid 4, so that the control board 6 can be protected from static electricity by the conductive net surface 13'. ing. The lid 4 has a longitudinal width substantially equal to the longitudinal width of the case main body 2, a lateral width smaller than the lateral width of the case main body 2, and further lowers the opposing edges of the hinge mechanisms 5, 5. The side plate portion 1 is bent into an L shape toward
2 are formed. Thereby, when the lid 4 is closed, as shown in FIGS. 1 and 2, a gap 14 is formed between the side plate 12 and the side plate 2 a of the case body 2 opposed to the side plate 12. Various connectors (not shown) for connecting the board 6 to an external circuit can be arranged in the gap 14 on the control board 6.

A plurality of flange portions 17a to 17d are arranged at predetermined intervals along the lateral width direction at two longitudinally opposed side edges of the lid body 4. In this embodiment, the case where four flange portions 17a to 17d are provided on the two side edges of the lid 4 is shown, but the number is not limited to this. The flange portions 17a to 17d are disposed at symmetrical positions on two side edges of the lid 4.

Each of the flange portions 17a to 17d has a pair of rib pieces 18, 18 projecting laterally from the side edge of the lid 4 at a predetermined interval, as shown in FIG. 1
A locking piece 19 having both side edges supported by 8, 18;
A screw insertion hole 20 is formed in the locking piece 19.

A plurality of bosses 16a are formed on the two side edges of the case body 2 corresponding to the two side edges of the lid 4 provided with the flange portions 17a to 17d, respectively, so as to form a pair with the flange portions 17a to 17d. To 16d are provided respectively. Each of the boss portions 16a to 16d has the flange portions 17a to 17d.
Screw mounting holes 15 are respectively formed in correspondence with the insertion holes 20 of d.

As shown in FIGS. 6 and 7, a fastening screw 21 to be described later is inserted through the insertion hole 20 from above, and the head screw 22 of the fastening screw 21 is locked to the locking piece 19. 2
The male screw of the body portion 23 is connected to each of the boss portions 16a to 16d.
By screwing into the mounting holes 15, the pair of flange portions 17a to 17d and the boss portions 16a to 16d can be individually fastened.

The fastening screw 21 is provided with an operation head 22 that can be screwed only in the tightening direction, and is a so-called one-way screw formed with a male screw on the body 23, as shown in FIG. A pair of peaks located on both sides of a driver engaging groove 22a formed in the operation head 22 in a general screw, including a peak 22b with which a driver comes into contact when a screwing operation is performed in a tightening direction; This is a special screw from which the crest that the driver abuts during the screwing operation is removed, and once tightened in the mounting hole 15, the screwing operation in the loosening direction cannot be performed and the screw cannot be removed. For this reason, it is generally expected that it is very difficult to obtain.

Therefore, as shown in FIGS. 6 and 7, a storage section having an entrance / exit 24 through which the spare screw 21 'can enter and exit from each of the boss sections 16a to 16d from a surface facing the flange sections 17a to 17d. The spare screw 21 'is accommodated in the accommodating portion 25 one by one. Each storage section 2
The inlet / outlet 24 of the flange 5 is provided with the flange portions 17a to 17
d, and is stored as a spare screw 2
1 'is prevented from falling off. FIG. 7
Although two screws, a fastening screw 21 and a spare screw 21 ′, are illustrated in the figure, when the pair of bosses 16 a to 16 d and the flanges 17 a to 17 d are fastened with the fastening screw 21,
Since the spare screw 21 'stored in the storage section 25 cannot be taken out, any one screw appears during actual use.

To seal the control board storage case 1, with the lid 4 closed, a fastening screw 21 made of a one-way screw is inserted into the insertion hole 20 of the locking piece 19 from above the flange portion 17a. The male screw of the body 23 of the fastening screw 21 is screwed into the mounting hole 15 of the boss 16a forming a pair with the flange 17a in a tightening manner by screwing in a tightening direction. As a result, the flange portion 17a and the boss portion 16a are fastened, the closed state of the lid 4 is maintained, and the control board storage case 1 is sealed.

Here, the pair of flange portions 17a, 17a and the boss portions 16a, 16a provided at symmetrical positions on the two side edges of the control board storage case 1 are simultaneously fastened, whereby the control board storage case 1 is fastened. Fastening is performed at two opposing positions of the case 1, and the sealing can be made more secure. Note that a conventional sealing seal may be further attached to the boundary between the case main body 2 and the lid 4 of the control board storage case 1 thus sealed.

Once the fastening screw 21 is tightened, it cannot be screwed in the loosening direction. Therefore, the control board storage case 1 cannot be opened by removing the fastening screw 21.
Therefore, if the control board storage case 1 is unavoidably opened during inspection or the like, the sealed portion must be broken. The breakage of the sealing portion can be easily performed by cutting the rib pieces 18, 18 of the flange portion 17 a with an appropriate tool such as a nipper, and separating the locking piece 19 from the lid 4 together with the fastening screw 21. Then, the detached locking piece 19 remains in the boss portion 16a while being fastened by the fastening screw 21, leaving a trace of opening. For this reason, the control board storage case 1 cannot be opened without leaving any trace, so that an unauthorized act such as ROM replacement by opening the control board storage case 1 can be prevented.

The sealing is performed again by using a spare screw 21 'as a fastening screw 21 which can be taken out of the storage portion 25 only when the lid 4 is opened, and using another pair of flange portions 17b.
And the boss portion 16b in the same manner as described above. Further, the opening can be performed again by cutting the rib pieces 18, 18 of the flange portion 17b with a suitable tool such as a nipper in the same manner as described above. By repeating this operation sequentially, sealing and unsealing can be performed a predetermined number of times corresponding to the number of the bosses 16a to 16d and the flanges 17a to 17d forming a pair.

Next, the main part of the present invention will be described. The hinge mechanisms 5 and 5 each include a bearing 26 and the bearing 26.
And a support shaft portion 27 which is forcibly fitted rotatably to the case body 2. The two bearing portions 26, 26 are arranged at a predetermined interval above the one side edge of the pivot side along the longitudinal direction of the case body 2. It is arranged. As shown in FIG. 9, each bearing portion 26 includes a pair of left and right lower receiving pieces 29 a, 29 a protruding from an outer surface of a side plate portion 2 b that constitutes one side edge of the case body 2 on the pivot side.
It comprises an upper receiving piece 29b projecting at an intermediate position between the lower receiving pieces 29a, 29a, and as shown in FIG. At the same time, an engaging / disconnecting opening 31 communicating with the bearing groove 30 is opened to the side. The width of the engagement / removal opening 31 is provided so as to be slightly smaller than the shaft diameter of the support shaft 27.

The other support shafts 27, 27 constituting the hinge mechanisms 5, 5 are disposed at side edge positions of the lid 4 corresponding to the bearings 26, 26, respectively. Each shaft 27
As shown in FIGS. 9 and 10, a cover bracket 3 having a substantially L-shaped cross section protruding from the side edge of the lid 4 toward the rear surface thereof.
2 and left and right side wall plates 32 of the cover bracket 32
a, 32a, both ends of which are supported, and are laid inside. The cover bracket 32 is integrally formed with a rear wall plate 32b at a rear position of the support shaft portion 27.
As shown in FIG. 10, the front end of each of the side wall plates 32 a and 32 a is extended to a position deviated from the axis of the support shaft 27 in a side view, and the front end is And

Further, as shown in FIG. 11, when the bearing portion 26 and the support shaft portion 27 are fitted together, the opening of the cover 4 causes the support end 33 to come into contact with the outside of the side plate portion 2b of the case body 2. The side surface portion is a receiving surface 34 of the support end 33. The contact of the support end 33 with the receiving surface 34 allows the opened lid 4 to maintain the open state at a predetermined angle slightly larger than a right angle. In addition, the lower receiving piece 29 is attached to the rear wall plate 32b having the support end 33.
a, 29a, respectively, are formed with notch grooves 41, 41, respectively. When the cover 4 is opened, the notch grooves 4 are formed.
The lower receiving pieces 29a, 29a are inserted through the first and the first 41 so that the supporting end 33 and the receiving surface 34 can be brought into contact with each other.

As shown in FIGS. 13 and 14, the side plate portion 2b which constitutes one side edge of the pivotal side of the case body 2 is located substantially at the center between the two bearing portions 26, 26. A notch groove 35 having a predetermined depth is formed. The lower half of the notch groove 35 is shielded by an engaging member 36 integrally formed so as to protrude outside the side plate portion 2b, and the engaging member 36 has an opening on the inner surface side of the side plate portion 2b. Engaging hole 37
Are formed.

On the other hand, the notch 3
The locking member 38 having a substantially L-shaped cross section is disposed at a position corresponding to the position 5. The locking member 38 includes an extended piece 38a extending from the side edge of the lid 4 toward the rear surface, and a locking piece 38b bent from the lower end toward the outer surface side. In the closed state, the locking piece 38b is inserted into the engagement hole 37.

Also, one side edge of the lid 4 on the pivot side is shown in FIG.
As shown in FIG. 5, a locking edge 39 extends from the one side edge toward the rear surface. The locking rim 39 extends near the outer surface of the side plate 2b of the case body 2 facing the lid body 4 in the closed state along the outer surface, and as shown in FIG. The stop member 38 and the cover bracket 32 are provided in portions other than the cover member 32. Further, a plurality of locking projections 40 are formed on the rear surface of the lid 4 at positions inside the locking edges 39. As shown in FIG. 15, the locking projections 40 are provided close to the inner side surface of the side plate 2b of the case main body 2 which faces when the lid 2 is closed.
As shown in the figure, the members are arranged at predetermined intervals along the locking edge 39.

In this configuration, to connect the bearings 26 of the hinge mechanisms 5 and 5 to the support shaft 27, as shown in FIG. The support shaft 27 provided on the cover 4 is moved from the engagement / disengagement opening 31 of the bearing 26 provided on the case body 2 to the bearing groove 3.
As shown in FIG. 11, the bearing 26 and the support shaft 27 are connected to each other by forcibly fitting the bearings into the inside. At this time,
When the extended piece 38a of the locking member 38 provided on the lid 4 is engaged with the notch groove 35 formed in the side plate 2b of the case main body 2, the support shaft 27 engages and disengages the bearing 26. In this state, the outer side surface of the cover bracket 32 and the inner side surface of the side plate 2b of the case body 2 are pressed with a finger, whereby the support shaft 2
7 can be easily press-fitted into the bearing groove 30 from the engagement / disconnection port 31 of the bearing portion 26.

As described above, by connecting the bearings 26 of the hinge mechanisms 5 and 5 to the support shaft 27, the opposing one side edges of the case body 2 and the cover 4 are pivotably connected. The lid 4 can be opened and closed in a one-sided manner. here,
Since the engagement / disengagement opening 31 is provided so as to be slightly smaller than the shaft diameter of the support shaft portion 27, the press-fitted support shaft portion 27 can escape from the engagement / disconnection opening 31 in a normal opening / closing operation. Therefore, the fitted state can be maintained.

As described above, the lid 4 is pivotally connected to one side of the case body 2 by the hinge mechanisms 5 and 5 to form a pair provided on the other side. The cover 4 can be easily closed simply by fastening the bosses 16a to 16d and the flanges 17a to 17d with the fastening screws 21.

Further, when the cover 4 is opened during the storage work and the inspection work of the control board 6, the cover 4 is slightly moved from the right angle where the support end 33 contacts the receiving surface 34 as shown in FIG. It is opened to a large predetermined angle, and the open state is maintained without coming off the case main body 2. Thereby, during normal work, it is possible to save the trouble of placing the lid 4 detached from the case main body 2 at the time of opening as in the related art in another place, and to eliminate the space for placing the lid 4.

When it is necessary to remove the lid 4 from the case body 2, the lid 4 is opened at a predetermined angle or more, and the support end 33 in contact with the receiving surface 34 is formed by the so-called leverage principle. As the fulcrum, the support shaft portion 27 rotates toward the engagement / disengagement opening 31 and escapes from the bearing portion 26, so that the support shaft portion 2
7 and the bearing 26 are disengaged, and the lid 4 is
Can be easily separated.

As described above, the connection of the hinge mechanisms 5 and 5 can be released only at a predetermined angle at which the cover 4 is substantially perpendicular to the case body 2, and the cover 4 is closed to store the control board. When the case 1 is sealed, the hinge mechanism 5
Since the connection of the hinge mechanism 5 cannot be released, it is possible to prevent an unauthorized act such as ROM replacement due to the disconnection of the hinge mechanisms 5, 5.

On the other hand, as described above, when the one side edge of the lid 4 is pivotally connected to the one side edge of the case body 2 by the hinge mechanisms 5 and 5, when the lid 4 is rotated in the closing direction, The locking member 38 provided on the back surface of the lid 4 rotates together with the lid 4, and as shown in FIG.
The engagement piece 38b is fitted into the engagement hole 37 of the engagement member 36 provided at the position b. Thereby, in the closed state of the lid 4,
One side edge of the pivot side of the lid 4 is immovably moved upward,
Even if an attempt is made to lift the lid 4 by applying an external force thereto, the lid 4 cannot be deformed. Thereby, the hinge mechanism 5,
On the 5th side, RO is formed through a gap formed by deforming the lid 4.
It is possible to prevent a fraudulent act of exchanging M.

In the same manner as described above, with one side edge of the lid 4 pivotally connected to one side edge of the case body 2 by the hinge mechanisms 5 and 5, the lid 4 is rotated in the closing direction to close. Then, as shown in FIG. 15, the locking edge 39 provided on the lid 4
The side plate portion 2b of the case main body 2 fits between the locking protrusion 40 and the position of the side plate portion 2b is regulated, so that even if an external force is applied from the side, the side plate portion 2b cannot be deformed. Thereby, on the hinge mechanisms 5 and 5, the side plate 2b of the case body 2 is provided.
It is possible to prevent a fraudulent act of replacing the ROM from a gap generated by deforming the ROM.

In the above embodiment, the bearing 26 constituting each hinge mechanism 5 is provided on the case body 2 side, and the support shaft 27
Is provided on the lid 4 side, but it is also possible to reverse the arrangement position. Also, a support end 3 provided on the support shaft 27 side.
It is also possible to reverse the arrangement position of 3 and the receiving surface 34 provided on the case body 2 side.

Further, in the above embodiment, one side edge of the case body 2 and the lid 4 is pivotally connected by the two hinge mechanisms 5, 5, but the present invention is not limited to this number. It is also possible to pivotally connect said one edge by means of one or more hinge mechanisms 5.

Further, in the above embodiment, the pair of the engagement holes 37 and the locking pieces 38b are arranged at an intermediate position between the two hinge mechanisms 5 and 5, but instead of this configuration. Alternatively, a plurality of pairs of the engagement holes 37 and the locking pieces 38b may be arranged on one side edge of the case body 2 and the lid 4 on the pivot side.

Further, a plurality of locking projections 40 provided on the back surface of the lid 4 can be formed in a series.

[0040]

As described above, according to the present invention, an engaging hole is provided in a side plate portion forming one side edge of a case body pivotally connected by a hinge mechanism, while the cover body is provided on the back surface of the cover body. Since the locking piece to be inserted into the engagement hole is provided in the closed state, the locking piece of the lid is inserted into the engagement hole of the side plate portion of the case body in the closed state of the lid, The position of the lid is restricted so as not to move upward, and even if an attempt is made to lift the lid by applying an external force thereto, the lid cannot be deformed. Thus, on the hinge mechanism side, it is possible to prevent a fraudulent act of replacing the ROM from a gap generated by deforming the lid.

A locking edge extends from one side edge of the lid pivotally connected by the hinge mechanism to the vicinity of the outer side surface of the side plate portion of the case body opposed to the lid body in the closed state along the outer side surface. In addition, since one or a plurality of locking projections are provided on the rear surface of the lid close to the inner surface of the side plate portion, the locking edge and the locking projection of the lid are provided in the closed state of the lid. When the side plate portion of the case main body is settled between the positions, the position of the side plate portion is regulated, and even if an external force is applied to the side plate portion from the side, the side plate portion cannot be deformed. Accordingly, the hinge mechanism has an excellent effect that it is possible to prevent an unauthorized act of replacing the ROM from a gap generated by deforming the side plate of the case main body.

[Brief description of the drawings]

FIG. 1 is a plan view of a control board storage case according to the present invention.

FIG. 2 is a side view of a control board storage case.

FIG. 3 is a rear view of the control board storage case.

FIG. 4 is a side view of the control board storage case showing a state where a lid is opened.

FIG. 5 is an enlarged perspective view of a flange portion.

FIG. 6 is a longitudinal sectional view of a control board storage case.

FIG. 7 is an enlarged sectional view of a main part in FIG. 6;

FIG. 8 is a perspective view of a fastening screw.

FIG. 9 is an enlarged perspective view of the hinge mechanism in a separated state.

FIG. 10 is a side sectional view of the control board storage case in a state where the hinge mechanism is separated.

FIG. 11 is a side sectional view of the control board storage case in a state where the hinge mechanism is connected.

FIG. 12 is a side sectional view of the control board storage case showing a state where a lid is closed.

FIG. 13 is an enlarged perspective view showing an engagement hole portion of the case body and a locking piece portion of the lid.

FIG. 14 is a side sectional view of the control board storage case showing an engagement state of an engagement hole and an engagement piece.

FIG. 15 is a side sectional view of the control board storage case showing a locking edge and a locking projection.

FIG. 16 is a rear view of the lid showing a state where the locking edge is provided.

FIG. 17 is a plan view of the lid showing an arrangement position of the locking projection.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control board storage case 2 Case main body 2b Side plate part 3 Opening 4 Lid 5 Hinge mechanism 6 Control board 26 Bearing part 27 Support shaft part 31 Engagement opening 33 Support end 34 Receiving surface 37 Engagement hole 38b Engagement piece 39 Engagement Edge 40 Locking projection

Claims (2)

[Claims] A cover body for accommodating a control board; a lid for shielding an opening of the case body; one side edge of the case body; and a lid body corresponding to the one side edge. In a control board storage case pivotally connected to a side edge via a hinge mechanism, an engagement hole is provided in a side plate portion of the case main body which constitutes one side edge pivotally connected by the hinge mechanism. On the other hand, a control board storage case for a gaming machine, characterized in that a locking piece that is inserted into the engaging hole when the lid is closed is provided on the back surface of the lid. 2. A case body for accommodating a control board, and a lid for shielding an opening of the case body, one side edge of the case body and one side edge of the lid body corresponding to the one side edge. In a control board storage case pivotally connected to a side edge via a hinge mechanism, the lid body, from one side edge pivotally connected by the hinge mechanism,
A locking edge is extended along the outer surface near the outer surface of the side plate portion of the case body opposed to the lid body in the closed state, and the back edge of the lid is brought close to the inner surface of the side plate portion. Alternatively, a control board storage case for a gaming machine, wherein a plurality of locking projections are provided.