JP2905773B1 - Substrate case for ball game machine - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To be able to easily see through both sides of a control board from the outside, to easily find unauthorized modification or the like on the control board side, and to illegally modify the control board side by inserting a tool or the like from a heat radiation hole. Provided is a board case for a ball-and-ball game machine which can prevent the occurrence of the problem. SOLUTION: A plurality of case bodies which are openably and closably connected.
Control board with 17, 18, 19, electrical components such as ROM for controlling game operation, connector 16 and printed pattern
7 are housed so as to be covered from the outside by these case members 17, 18, and 19. Each of the case members 17, 18, and 19 has a structure that allows the control board 7 to be seen through from the outside. , 18, and 19, at least one case body 19 is provided with a heat radiating hole, and the heat radiating hole is formed in a small hole shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board case for a ball game machine used for a ball game machine such as a pachinko machine, an arrangement ball machine and the like.

[0002]

2. Description of the Related Art In a ball-and-ball game machine such as a pachinko machine, a control board on which electric components such as a ROM, connectors and a printed pattern are mounted is housed in a freely openable and closable board case. Attach it to the back cover etc. on the back side,
An electronic control system in which a game operation is controlled by an electric component such as a ROM on the control board is employed.

[0003] In this type of ball and ball game machine, Japanese Patent No. 2630 is disclosed.
As described in JP-A-68-68, a case body made of an opaque material and a case lid made of a transparent synthetic resin material constitute a freely openable and closable board case. The state of the electric components can be seen from outside.

In addition, the case body of the board case and the case lid are sealed with a sealing means such as a sealing seal, and when inspecting by an inspection agency such as a regulatory agency, the board case can be easily opened by breaking the sealing seal. In the case where the seal is broken or the ROM on the control board is replaced, or the tampering is modified, the damage of the seal can be easily found by looking at the damage.

Further, a large number of heat radiation holes are formed in the case lid,
The heat generated by the electric components on the control board side is radiated to the outside from each heat radiation hole.

[0006]

The conventional board case is
Although a transparent synthetic resin material is used for the case lid, the case body side is formed of an opaque material, so that the back side of the control board cannot be seen through from the outside. For this reason, if the seal is peeled off so that no trace remains, and unauthorized modification is performed on the back side of the control board,
It is very difficult to find any unauthorized modification or the like simply by looking through the control board from the case lid side.

Further, in the conventional board case, since each heat radiating hole on the case lid side is large, there is a possibility that unauthorized modification of electric components on the control board side and others may be performed by inserting a tool or the like through the heat radiating hole. However, there is a disadvantage that unauthorized modification of the control board cannot be prevented.

The present invention has been made in view of such conventional problems,
Provide a board case for a ball game machine that can easily see through the front and back sides of the control board from the outside, easily detect tampering with the control board, etc., and prevent improper acts on the printed pattern of the control board. The purpose is to do.

[0009]

SUMMARY OF THE INVENTION The present invention comprises a plurality of case members 17, 18, 19, which are openably and closably connected, and an electric component 15, such as a ROM, for controlling a game operation, a connector 16, and a print pattern 14. The control board 7 provided with
In a board case for a ball-and-ball game machine housed so as to be covered from the outside by 7, 18, and 19, each case body 17, 18, and 19 has a structure that allows the control board 7 to be seen from the outside, and The case body 18 is provided with a step portion 28 in contact with the control board 7, and the step portion 28 is provided with an opening 32 into which the connector 16 is fitted so that an external connector 34 can be connected to the connector 16,
The edge of the opening 32 is brought close to the connector 16 so that the print pattern 14 is not exposed, and the step 28 covers the print pattern 14 around the connector 16.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

The drawings illustrate one embodiment of the present invention. FIG. 1 shows the back side of a ball game machine, 1 is a rectangular outer frame, 2 is a front frame mounted on the front side of the outer frame 1, and these constitute a ball game machine body. A game board is detachably mounted on the front frame 2 from the back side, and is pressed and fixed from the back side by the back mechanism plate 3. The game board is provided with a winning means, a variable symbol display means, and the like, and a back cover 4 that covers them from the back side is mounted on the back side.

The back mechanism plate 3 is pivotally attached to the back side of the front frame 2 so as to be openable and closable, and is fixed to the back side of the front frame 2 by four lock levers 5. The back mechanism plate 3 has an opening formed at the center thereof so that the back cover 4 is fitted. Back cover 4
Is mounted on the game board so as to cover the winning means, the variable symbol display means, etc. of the game board from the back side. A rectangular inspection window is formed in the back cover 4, and a board case 6 containing a control board (see FIGS. 2 to 5) is closed via a pair of left and right locking claws 8 so as to close the inspection window. It is detachably attached to the back cover 4.

Reference numeral 9 denotes a firing means, which includes a firing motor 10 mounted on the rear side of the front frame 2 and the like. When the firing handle on the front side of the front frame 2 is operated, the firing motor 10 is operated, and It is configured to shoot a game ball to the game board side. 11 is a prize ball tank for storing prize balls, 12 is a prize ball tank 11
It is a prize ball rail that guides prize balls from. Numeral 13 denotes payout means for paying out game balls supplied from the prize ball tank 11 via the prize ball rail 12 to the upper plate at the time of winning. The prize ball tank 11, the prize ball rail 12, and the payout means 13 are mounted on the back mechanism plate 3.

The control board 7 has a rectangular shape as shown in FIGS. 2 to 6, and has a large number of printed patterns 14 formed on both front and back surfaces or a front surface thereof, and a ROM for controlling a game operation on the game board side. The electrical components 15 and the connectors 16 are mounted, and the electrical components 15 and the connectors 16 are attached to the printed pattern 14.
Are electrically connected via The connector 16 is shown in FIG.
It is provided on the edge side of the control board 7 as shown in FIG. It should be noted that characters, symbols, and the like indicating the electrical components 15 and the like arranged at the required positions on the control board 7 are appropriately printed and displayed.

The board case 6 is entirely made of a transparent synthetic resin so that the inside of the control board 7 can be seen through.
As shown in FIG. 5, a case body (first case body) 17, an intermediate case body (third case body) 18, and a case lid (first case body) formed of a transparent synthetic resin material such as colorless transparent or colored transparent. 19). Case body 1
7, the intermediate case body 18 and the case lid body 19 are housed with the control board 7 interposed between the case body 17 and the intermediate case body 18, and the engagement means 20, 21 at one end and the other end And openably and closably coupled with the sealing means 22 for sealing. Note that the intermediate case body 18 and the case lid 19 may be integrally formed.

The case body 17 has a rectangular plate shape, and has a substrate fixing portion 23 formed on the outer peripheral edge as shown in FIG.
Two engaging portions 24 are formed on one edge side in the longitudinal direction, and a sealing table 25 is formed on the other end side. The intermediate case body 18 has a substantially rectangular shape having a predetermined height as shown in FIGS. 3 and 4, and the case body 17 side and the case lid 19 side before and after the intermediate case body 18 are open and correspond to the case body 17. On the side, a board fixing portion 26, a fitting edge 27, a step portion 28, and an engagement piece 29 are provided, and on the side corresponding to the case lid 19, an engagement edge 30 and a lid receiving portion 31 are provided, respectively.

The fitting edge 27 is provided on substantially the entire periphery of the intermediate case body 18 except for the portion corresponding to the sealing table 25. Inside the fitting edge 27, the case body 17 and the board fixing portion 23 are connected. The control board 7 that comes into contact with the control board 7 is fitted. The board fixing section 26 is formed at substantially the same height as the step section 28 inside the fitting edge 27, and the board fixing section 26 and the board fixing section 23 on the outer peripheral side of the case body 17 form a peripheral edge of the control board 7. The part is pinched from both sides and fixed.

The step portion 28 is substantially flush with the substrate fixing portion 26.
As shown in FIG. 13, two sides of the lower edge side of the intermediate case body 18 and the engaging means 20 side are provided along each side thereof, and each stepped portion 28 corresponds to the connector 16 of the control board 7. Opening 32
Is formed, and the nectar 16 is fitted into the opening 32 and protrudes outward.

As shown in FIGS. 5, 6 and 13, the opening 32 has a rim close to the connector 16 so that the printed patterns 14 around the connector 16 are not exposed. 28 covers each print pattern 14 in the peripheral portion of the connector 16. The opening 32
Is a necessary minimum size that surrounds the base side of the connector 16 on the control board 7 side, and inserts a tool or the like into the inside from the gap between the connector 16 and the rim of the opening 32 to perform unauthorized modification. Cannot be performed. A connector 34 of an external lead wire 33 is detachably connected to the connector 16.

As shown in FIG. 13, the engagement piece 29 is a sealing means.
On the side opposite to 22, two pieces protrude inward from the fitting edge 27, and are engaged with the engaging portion 24 of the case body 17 from below. The engaging edge 30 is provided inward on the opening side of the intermediate case body 18 on the side opposite to the sealing means 22, and two lid receiving portions 31 are provided on both ends of the engaging edge 30.

As shown in FIGS. 2 to 5, the case lid 19 has a fitting edge portion 35 that fits around the outer periphery of the intermediate case body 18 on almost the entire periphery except for the portion corresponding to the engagement edge 30. An engaging piece 36 is formed on the side corresponding to the engaging edge 30 so as to engage with the engaging edge 30 from below. The case lid 19 is provided with a seal attaching portion 37 for attaching an inspection history seal describing an inspection history, and a radiating hole 38 for radiating heat generated by the electric component 15 on the control board 7 side to the outside. Have been.

As shown in FIGS. 2 and 5, a large number of heat radiating holes 38 are provided on both sides of the seal sticking portion 37, and are formed in small holes so that a tool or the like for illegal remodeling cannot be inserted from the outside. . The heat radiating hole 38 is suitably a round hole, a square hole or the like having a size of about 2 mm or less, but may be any size as long as a tool cannot be inserted.

The engagement means 20 between the case body 17 and the intermediate case body 18 is constituted by an engagement portion 24 and an engagement piece 29,
The engagement means 21 between the intermediate case body 18 and the case lid 19 is
It is composed of an engagement edge 30, a lid receiving portion 31, and an engagement piece.

The sealing means 22 is formed of a transparent synthetic resin material such as colorless transparent or colored transparent.
As shown in FIG. 12, a sealing base 25 on the case body 17 side,
A plurality of (for example, eight, hereinafter referred to as eight) pin fitting portions 39 having a bottom shape formed on the sealing table 25;
A plurality of pin holding portions 40 corresponding to the respective pin fitting portions 39, a cutting portion 41 that connects the respective pin holding portions 40 and the case lid 19 so as to be cuttable, and destructively presses the pin fitting portion 39 side. And a plurality of sealing pins 43 which are undetachably fitted to the pin holding portion 40 and irremovably engaged with the pin locking portion 42 in the pin fitting portion 39 when the buckle is inserted.

As shown in FIG. 2, the sealing table 25 is
Is formed in a block shape elongated along the side edge of the case body 17 and is integrally formed on the outside of an upright wall 44 rising from the outside of the substrate fixing portion 23 of the case main body 17, or is fixed by bonding such as high frequency bonding. . The sealing table 25 is provided with eight pin fitting portions 39 at equal intervals in the longitudinal direction. As shown in FIGS. 10 and 12, each pin fitting portion 39 has a pin locking portion.
42 has holes 39a, 39b formed in the sealing table 25 on both sides of the
An inwardly protruding pin locking portion 42 is formed at a substantially central portion in the depth direction of the holes 39a and 39b, and the bottom side of the round hole 39b is closed by a back plate 45. Therefore, the pin fitting portion 39
Has a bottomed shape with a pin locking portion 42.

As shown in FIG. 11, the back plate 45 has a length extending over the entire length of the sealing table 25. The back plate 45 has an enclosing wall 46 into which the sealing table 25 is fitted, and The pins 48 that fit into the recesses 47 of the sealing table 25 are formed integrally between the pin fitting sections 39, and are fixed to the sealing table 25 by bonding such as high-frequency bonding. The back plate 45 is
A trace checking means 49 having an irregular pattern is provided so that when a hole or the like is illegally drilled in a portion corresponding to the pin fitting portion 39, a trace of the drilling remains on the back plate 45 side.

The trace checking means 49 may be formed, for example, by adding a small amount of a coloring material to a transparent synthetic resin material and kneading it so as to form an irregular flow pattern when the back plate 45 is formed of a synthetic resin material. good. Note that a transparent coloring material is appropriate as the coloring material. If the trace confirmation means 49 is not required, the back plate 45 may be formed of a colorless and transparent or colored and transparent synthetic resin material.

Each of the pin holding portions 40 is cylindrical, and has an engaging step 50 formed on the side that comes into contact with the sealing table 25 as shown in FIGS. It is formed integrally with the case lid 19 via the cutting portion 41. The cutting portion 41 has a narrow central portion so that when the substrate case 6 is opened and inspection or the like is performed, the cutting portion 41 can be easily cut and broken with a tool such as a nipper.

As shown in FIGS. 7 to 10 and 12, when the sealing pin 43 is destructively pressed toward the pin fitting portion 39, the sealing pin 43 is undetachably fitted to the pin holding portion 40, and In the portion 39, the pin locking portion 42 is irremovably engaged. That is, the sealing pin 43 includes a pair of engaging heads 51 that can be engaged with the engaging step portion 50 in the pin holding portion 40 from the side opposite to the pin fitting portion 39,
A pair of legs 52 extending bifurcated from the center between the engagement heads 51 toward the pin fitting portion 39, and a unidirectional sealing engagement portion formed outwardly on each of the legs 52. 53, an annular portion 54 loosely fitted on the outer periphery of the pin holding portion 40 on the side opposite to the pin fitting portion 39, a pair of connecting portions 55 connecting the annular portion 54 and each engaging head 51, The connecting portion 55 is provided with a break portion 56 formed by inserting a thin arc-shaped groove so that a part outside the thickness direction remains.

It should be noted that between the engagement head 51 and the annular portion 54,
The pair of connecting portions 55 and the cutout portions 57 are alternately arranged point-symmetrically.

The breaking portion 56 normally connects the engaging head 51 to the connecting portion 55 on the annular portion 54 side as shown in FIGS. When the tip of a driver or the like is applied to the side and pressed toward the pin fitting portion 39, it is easily broken and the engaging head 51 of the sealing pin 43 can be pushed into the pin holding portion 40. .

As shown in FIG. 10, the sealing engagement portion 53
In the state in which the break portion 56 is not broken, the pin engages with the edge of the pin holding portion 40 on the pin fitting portion 39 side, breaks the break portion 56, and engages the engaging head 51 with the engaging step portion 50. Until the sealing pin 43 is pushed into the pin holding portion 40, the pin 43 can be undetachably engaged with the pin locking portion 42 in the pin fitting portion 39.

The leg 52 of the sealing pin 43 has an inclined guide surface 52a at the outer end on the tip side from the engaging portion 53. The inner diameter of the engagement step portion 50 side is the pin engagement portion 42 of the pin fitting portion 39.
The diameter is smaller than the inner diameter of the hole portions 39a and 39b except for.

As shown in FIGS. 2 and 8, the case lid 19 has numerals 1 to 4 from one end to the other end so as to correspond to the pin holding portions 40 of the sealing means 22 and the like. Two sets are displayed in a line. When sealing the board case 6,
A sealing pin 43 at a location corresponding to the same number among the numbers 1 to 4 in the set is used.

In the above configuration, when manufacturing a ball-and-ball game machine, the control board 7 on which the electric parts 15 such as ROM are mounted is mounted.
After being stored in the substrate case 6 and sealed by the sealing means 22, the substrate case 6 is mounted on the back cover 4 side.

When assembling the board case 6, first, the control board 7 is interposed between the case body 17 and the intermediate case body 18 so that the electric component 15 is on the case lid 19 side. In this case, the control board 7 is set on the board fixing portion 23 of the case body 17, the engaging piece 29 of the intermediate case body 18 is engaged with the engaging portion 24 of the case body 17, and then the board fixing section 23 And board fixing part
The case body 17 and the intermediate case body 18 may be combined so that the control board 7 is sandwiched between the case body 26 and the intermediate case body 18. The case body
After the control board 7 is set on the board fixing portion 23 of the case main body 17 with the engaging piece 29 of the intermediate case body 18 being engaged with the engaging portion 24 of the 17, the case main body 17 and the intermediate case body 18 are set. May be combined.

When the control board 7 is interposed between the case body 17 and the intermediate case body 18, the control board 7 is sandwiched between the board fixing part 23 of the case body 17 and the board fixing part 26 of the intermediate case body 18. The fitting edge 27 is fitted on the outer peripheral side of the control board 7.

Next, the engaging piece 36 of the case lid 19 is inserted below the engaging edge 30 between the lid receiving portions 31 of the intermediate case 18, and the case lid 19 is Close. After that, the case lid 19 is set, and the substrate case 6 is sealed by the sealing means 22. Then, the case body 17, the intermediate case body 18, and the case lid 19 are engaged by the engagement means 20, 21 and the sealing means 22. And can be combined. Accordingly, the board case 6 can be easily sealed with the control board 7 stored therein, and at the same time, the control board 7 can be easily fixed between the board fixing portions 23 and 26 of the case main body 17 and the intermediate case body 18.

When the sealing is performed by the sealing means 22, the sealing pins 43 are previously inserted and temporarily fixed in the eight pin holding portions 40 on the case lid 19 side. At this time, if the tip side of each sealing pin 43 is inserted into the pin holding portion 40, the pair of legs 52 is elastically deformed inward, so that the engaging portions of the legs 52 easily engage the engaging step portions 50. Can pass through. Further, the sealing engagement portion 53 is engaged with the pin holding portion 40 from the pin fitting portion 39 side, and the annular portion 54 is
The connecting portion 55 comes into contact with the end face of the pin holding portion 40 by loosely fitting around the outer periphery of the pin 40. For this reason, the sealing pin 43 can be temporarily and easily temporarily fixed to the pin holding portion 40, and accidental dropping or loss of the sealing pin 43 can be prevented.

In this state, the case lid 19 is attached to the intermediate case 18
Set to the opening side of. At this time, the tip end of each sealing pin 43 protrudes from the pin holding portion 40, but the tip fits into the pin fitting portion 39, so that each sealing pin 43 is set when the case lid 19 is set. It does not get in the way.

When sealing the substrate case 6 first,
The sealing pin 43 corresponding to the number “1” is pressed against the pin fitting portion 39 by a screwdriver or the like. That is, when the tip of a screwdriver or the like is applied to the engagement head 51 side of the sealing pin 43 and the sealing pin 43 is pressed in this state, the pressing force breaks the breaking portion 56 destructively and causes the engagement head to break. 51 separates from annular portion 54. At this time, since the breaking portion 56 is thin, the breaking portion 56 can be easily broken by applying an appropriate pressing force.

When the engaging head 51 is further pressed after the breaking portion 56 is broken, the engaging head 51 is pushed into the pin holding portion 40, and the engaging head 51 is moved into the pin holding portion 40. When the pin holder 40 is completely buried, it comes into contact with and engages with the engaging step 50 of the pin holding section 40.
On the other hand, the pair of legs 52 of the sealing pin 43 is elastically deformed inward, and the engaging portions of the legs 52 are
After passing through, the engaging portion is irremovably engaged with the pin locking portion 42 from the opposite side.

2 corresponding to the numeral of "1" as described above.
By pressing the sealing pins 43 into the pin holding portion 40, the substrate case 6 can be sealed with the two sealing pins 43 spaced apart, and the sealing pins 43 seal the substrate case 6. Stop is completed.

When the breaking portion 56 is broken, the annular portion 54 remains on the pin holding portion 40 in a fitted state, but this may be removed as appropriate.

When the inspection of the ROM or the like of the control board 7 is performed after the ball-and-ball game machine is installed in a hall or the like, "1" is set.
The cutting portion 41 on the pin holding portion 40 side holding the two sealing pins 43 in the sealed state corresponding to the numeral of FIG. When the cut portion 41 is cut, the cut pin holding portion 40 is separated from the case lid 19 and the sealing pin
Because the sealing member 43 remains connected to the pin fitting portion 39 by the pin 43, the sealing of the board case 6 by the two sealing pins 43 can be released. Therefore, the control board 7 or the ROM or the like can be taken out by opening the board case 6 and easily inspected.

When resealing is performed after the inspection on the control board 7 side, the sealing pins 43 temporarily fixed to the two pin holding sections 40 corresponding to the numeral “2” are pinned from the pin holding section 40 side. Fitting portion
The board case 6 is sealed by the two sealing pins 43 by pushing the board case 6 toward the side 39. For this reason, after inspection,
6 can be easily resealed.

After the inspection, the inspection history is described on an inspection history sticker affixed to the seal affixing portion 37 of the intermediate case body 18.

Opening and resealing by inspection can be performed up to three times for one substrate case 6, and in any case, the cut section 41 on the sealing side is cut off and temporarily fixed to the adjacent side. Then, the sealing pin 43 in the above may be pushed in to reseal.

In this embodiment, the sealing pin 43 is in a sealed state.
The engaging head 51 is completely immersed in the pin holding portion 40, and the engaging portion on the distal end side is in the pin-fitting portion 39 having a bottom.
After sealing with the sealing pin 43, it is very difficult to remove the sealing pin 43 from the outside and release the sealing state. The sealing of the board case 6 cannot be released unless it is cut and broken by a tool or the like.

Also, if the cut portion 41 is broken,
When opened, the destruction mark of the cut portion 41 remains on the case lid 19 side, and the pin holding portion 40 remains fixed by the sealing pin 43 on the support side of the case main body 17, so that the board case 6
There is always a trace of opening on the side, and it is extremely difficult to hide it. As a result, unauthorized modification such as opening the board case 6 and illegally replacing the ROM on the control board 7 becomes difficult.
Unauthorized modification can be prevented beforehand.

In particular, traces of opening remain on the substrate case 6 side.
Since it is extremely difficult to completely hide the traces, an effect of psychological restraint on a fraudulently modified person can be expected, and it is possible to prevent rampant modification from occurring. Moreover, by comparing the trace on the substrate case 6 with the inspection history on the inspection history seal side, it is easy to identify whether or not the tampering has been completed.

A sealing table is provided at a portion corresponding to the pin fitting portion 39.
A hole or the like is illegally drilled in the back plate 45 on the 25 side with a drill or the like to form an opening on the bottom side of the pin fitting portion 39, and a sealing pin is formed from the opening side.
Release the sealing of the board case 6 by operating 43
In the case where an injustice such as injecting a resin, an adhesive, or the like into the opening of the device and closing it, the fact of the injustice can be easily found by looking at the state of the back plate 45 side. That is, even if a resin, an adhesive, or the like is injected into the opening of the back plate 45 to close it, there is a trace checking means 49 formed of an irregular pattern on the back plate 45 side, so that the back plate 45 must be perforated. Traces will remain, and the traces will make it easier to find fraudulent facts.

Further, since the pin holding portion 40 protrudes from the case lid 19 via the cutting portion 41, the cutting portion 41
Can be easily cut with a nipper or the like.
Since the cut portion 41 is provided only on the side, compared to the case where the cut portion 41 is provided on both the pin fitting portion 39 and the pin holding portion 40, the cut at the time of opening is easier and the seal can be easily opened.

Further, since the pin fitting portion 39 and the pin holding portion 40 protrude outward, there is no obstacle to resealing after the inspection. Thus, the substrate case 6 can be easily resealed.

Moreover, since the sealing means 22 protrudes outward, the control means 7 in the substrate case 6 is not restricted by the sealing means 22, and a sufficient effective area of the control board 7 can be secured. .

A sealing table 25 is provided outside the case body 17.
Since each pin fitting portion 39 is formed on the sealing base 25, the strength of the pin fitting portion 39 can be increased as compared with a case where each pin fitting portion 39 is provided independently. Moreover, the case lid 19
The pin holding portions 40 on the side abut against the sealing table 25, and the tips of the sealing pins 43 temporarily fixed to the respective pin holding portions 40 are fitted into the pin fitting portions 39 of the sealing table 25. , Cutting each pin holding part 40
Despite being provided on the case lid 19 via 41, the state of the pin holding portion 40 is stable, and the cutting portion 41 is deformed or deformed when the sealing pin 43 is pressed toward the pin fitting portion 39. There is no problem such as damage.

The case body 17, the intermediate case body 18, and the case lid 19 of the board case 6 are made of a transparent synthetic resin, and both sides of the control board 7 can be seen through from the outside. Any unauthorized alteration on either side can be easily detected. Moreover, the board fixing portions 23 and 26 are provided integrally with the case main body 17 and the intermediate case body 18,
Since the control board 7 is fixed at 23 and 26, almost the entire surface of the control board 7 can be seen through from the outside, as compared with the case where a metal screw or the like is used. Unauthorized alterations near the fixed part can be easily found.

The case lid 19 has a heat radiating hole 38. The heat radiating hole 38 is a small hole into which a tool or the like is difficult to insert.
It is difficult to illegally remodel the control board 7 by inserting a tool or the like from the heat radiation hole 38. Although the heat radiating holes 38 are small holes, the heat radiation of the board case 6 can be sufficiently secured by increasing the number of the heat radiating holes 38, so that there is no particular problem.

When connecting the connector 34 of the external lead wire 33, the connector 34 is inserted into the connector 16 on the control board 7 side protruding from the opening 32 of the intermediate case body 18. In this case, the intermediate case body 18 has an opening 32,
32, the rim is close to the connector 16 so that the print pattern 14 is not exposed, so that a tool or the like is inserted between the rim of the opening 32 and the connector 16 to perform unauthorized modification to the print pattern 14. It is also very difficult. Especially opening 32
Is located at the step 28 of the intermediate case body 18 and the step 28 is in contact with or close to the control board 7, so that the step 28 of the intermediate case body 18 is deformed, and Is almost impossible to insert.

The embodiments of the present invention have been described above, but the present invention is not limited to these embodiments.

For example, in the embodiment, the substrate case 6 is divided into three cases, that is, a case body 17, an intermediate case body 18, and a case lid 19, and the sealing stand 25 and the pin fit to one of the outer case bodies 17. The joint portion 39 is provided with a pin holding portion 40 on the outer case lid 19 side, respectively.
25 and the pin fitting portion 39, the pin holding portion 40 on the case body 17 side.
May be provided respectively.

The same applies to the case where the intermediate case 18 and the case lid 19 are integrated, and the substrate case 6 has a two-part structure of the case body 17 and the case lid 19.

The board fixing portions 23 and 26 between the case body 17 and the intermediate case body 18 not only hold the control board 7 from both the front and back sides, but also have one of the projections fitted into the hole on the control board 7 side. Alternatively, the control board 7 may be fixed by a structure other than the structure exemplified in the embodiment, for example, by pressing and fixing the control board 7.

The case body 17, the intermediate case body 18, and the case lid 19 of the board case 6 are not limited to the shape and structure of the embodiment.

For example, the control board 7 may be fixed in a state of being fitted in the case body 17.

The pin fitting portions 39 may be provided independently of each other, and the pin holding portion 40 may connect a pair of adjacent ones to each other with a cutting portion 41.

Further, as shown in the embodiment, a plurality of pin fitting portions 39, pin holding portions 40, etc. are provided at one end side in the longitudinal direction of the board case 6 along the edge, and two different sides or It is also possible to arrange them on three sides. Of course, the pin fitting portion 39, the pin holding portion 40, the sealing pin 43 and the like may be provided as only one set.

The sealing pin 43 may have a shape other than the shape exemplified in the embodiment. For example, the annular portion 54 may contact the end face of the embodiment. Further, the sealing pin 43 is temporarily fixed in a state where the outer periphery of the engaging head 51 is engaged with the edge of the pin holding portion 40, and when the engaging head 51 side is pressed, the outer peripheral side is destructively deformed. The pin may be buried in the pin holding section 40.

The trace checking means 49 is constituted by an irregular pattern such as a flow pattern formed by kneading synthetic resin materials of two or more different colors, a synthetic resin material colored with a special coloring material,
You may comprise using another thing. However, also in that case, it is desirable to use a colored transparent material. Further, the sealing means 22 may be sealed with a conventional sealing seal or the like. The heat radiating holes 38 may be provided on the side surface of the intermediate case body 18 or the like.

[0070]

According to the present invention, there are provided a plurality of case members 17, 18, and 19 which are openably and closably connected, and an electric component 15, such as a ROM for controlling a game operation, a connector 16, and a print pattern 14. In a board case for a ball game machine in which the control board 7 is housed so as to be covered from the outside by these case bodies 17, 18, 19, each of the case bodies 17, 18, 19 can see through the control board 7 from the outside. Case 18 on connector 16 side
Is provided with a step portion 28 in contact with the control board 7, and this step portion 28
An opening 32 into which the connector 16 is fitted is provided so that an external connector 34 can be connected to the connector 16.
The edge of 32 is arranged close to the connector 16 so that the printed pattern 14 is not exposed, and the step 28 covers the printed pattern 14 around the connector 16. Both the front and back sides can be easily seen through, and unauthorized tampering with the control board 7 can be easily found, and the printed pattern 14 of the control board 7 from the opening 32 side.
Can be prevented beforehand.

Each of the case members 17, 18, 19 is made of a transparent synthetic resin, and each of the case members 17, 18 on both sides of the control board 7 is provided with a transparent synthetic resin board fixing portion 23, 26. Fixed part
Since the control board 7 is fixed by 23, 26, it is easy to fix the control board 7 in the board case 6, and it is also easy to find illegal modification etc. in the fixed part 23, 26 minutes of the control board 7 Can be.

Further, at least one of the plurality of case members 17, 18, 19 has a heat radiating hole 38 provided therein.
Since 38 is formed in a small hole shape so that a tool or the like for unauthorized remodeling cannot be inserted, unauthorized remodeling or the like on the control board 7 side by inserting a tool or the like from the heat radiating hole 38 can be prevented.

Further, transparent synthetic resin engaging means 20 and 21 are provided at one end of the case bodies 17, 18 and 19, and transparent synthetic resin sealing means 22 is provided at the other end. 20,21 and sealing means
When the case bodies 17, 18, and 19 are connected by the control unit 22, the control board 7 is sandwiched and fixed by the board fixing parts 23 and 26, so that the opening and closing, sealing, and control of the board case 6 are performed. The board 7 can be easily fixed, and the engaging means 20 and 21
Also, the see-through of the control board 7 by the sealing means 22 does not become difficult.

Further, a bottomed pin fitting portion 39 having a pin locking portion 42 formed therein is attached to one outer case body 17.
A pin holding portion 40 corresponding to the pin fitting portion 39 is provided on the other outer case body 19, and the one case body 17 and the pin fitting portion are provided.
39, and at least one between the other case body 19 and the pin holding portion 40 has a cut portion 41 interposed therebetween and cannot be detached into the pin holding portion 40 when destructively pushed into the pin fitting portion 39 side. The pin case 40 is provided with a sealing pin 43 which is fitted into the pin holding portion 42 and is undetachably engaged with the pin locking portion 42 within the pin fitting portion 39, so that the substrate case 6 can be easily sealed with a simple structure. The board case 6 cannot be opened unless the cutting section 41 is cut.When the board case 6 is opened by inspection or the like, the fact that the board case 6 has been opened can be easily confirmed by the traces remaining on the board case 6 side. Unauthorized remodeling by opening the file can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of the back side of a ball game machine showing one embodiment of the present invention.

FIG. 2 is a rear view of the board case showing one embodiment of the present invention.

FIG. 3 is an exploded perspective view of a board case showing one embodiment of the present invention.

FIG. 4 is an exploded side view of a board case showing one embodiment of the present invention.

FIG. 5 is a partially cutaway sectional view of a board case showing one embodiment of the present invention.

FIG. 6 is a partially cutaway rear view of the board case showing one embodiment of the present invention.

FIG. 7 is a partially cutaway side view of a sealing portion showing one embodiment of the present invention.

FIG. 8 is a rear view of a sealing portion showing one embodiment of the present invention.

FIG. 9 is an enlarged sectional view of a sealing portion showing one embodiment of the present invention.

FIG. 10 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 11 is a perspective view of a back plate showing one embodiment of the present invention.

FIG. 12 is an enlarged sectional view taken along line BB of FIG. 2;

FIG. 13 is an enlarged sectional view taken along line CC of FIG. 2;

[Description of sign]

 6 Board case 7 Control board 14 Print pattern 15 Electrical parts 16 Connector 17 Case body (Case body) 18 Intermediate case body (Case body) 19 Case lid body (Case body) 20 Engagement means 22 Sealing means 23,26 Board fixed Part 32 Opening part 38 Heat dissipation hole 39 Pin fitting part 40 Pin holding part 42 Pin locking part

Claims (5)

(57) [Claims] 1. A plurality of case bodies which are openably and closably connected.
A control board (7) including (17), (18), and (19) and including an electrical component (15) such as a ROM for controlling a game operation, a connector (16), and a printed pattern (14) is mounted on the case body ( In the board case for the ball game machine stored so as to cover from the outside by (17) (18) (19), each case body (17) (18) (19) is a control board (7)
Is provided with a step (28) in contact with the control board (7) on the case body (18) on the connector (16) side,
This step (28) has an external connector (3
An opening (32) into which the connector (16) fits is provided so that the connector (4) can be connected, and the edge of the opening (32) is printed with a printed pattern.
(14) The ball game machine characterized in that it is arranged close to the connector (16) so that the printed pattern (14) around the connector (16) is covered by the step portion 28 so that the connector (16) is not exposed. PCB case for The case bodies (17), (18) and (19) are made of transparent synthetic resin, and the case bodies (17) and (18) on both sides of the control board (7) are made of a transparent synthetic resin board. 2. The board case for a ball game machine according to claim 1, wherein fixing portions (23) and (26) are provided, and the control board (7) is fixed by the board fixing portions (23) and (26). 3. A heat radiating hole (38) is provided in at least one of the plurality of case bodies (17), (18) and (19), and the heat radiating hole (38) is formed as a small hole. 3. The board case for a ball game machine according to claim 1, wherein the board case is formed as follows. 4. Enclosure means (20) and (21) made of transparent synthetic resin at one end of the case bodies (17), (18) and (19), and sealing means made of transparent synthetic resin at the other end. (22) is provided, and when the case bodies (17), (18), and (19) are connected by the engagement means (20) (21) and the sealing means (22), the board fixing portions (23) ( The board case for a ball game machine according to any one of claims 1 to 3, wherein the control board (7) is sandwiched and fixed according to (26). 5. A bottomed pin fitting portion (39) in which a pin locking portion (42) is formed inside one outer case body (17),
A pin holding portion (40) corresponding to the pin fitting portion (39) is provided on the other outer case body (19), and between the one case body (17) and the pin fitting portion (39), The other case (19) and the pin holder
(40), a cutting part (41) is interposed between the pin holding part (4) and the pin holding part (4).
The pin holding portion (40) is provided with a sealing pin (43) that is irremovably fitted in the pin holding portion (39) and irremovably engages with the pin locking portion (42) in the pin fitting portion (39). The substrate case for a ball game machine according to any one of claims 1 to 4, wherein: