JP4136511B2 - Sealing device for control board case for gaming machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a sealing device for a control board case for a gaming machine, which is provided in a board case that is divided into a base and a cover and is fixed to a gaming machine casing, and that accommodates and seals the control board for the gaming machine in the board case About.
[0002]
[Prior art]
In general, a gaming machine such as a slot machine or a pachinko machine is controlled by a microcomputer, and this microcomputer has a CPU, ROM, RAM, etc. on a control board on which a predetermined pattern of printed wiring is applied in advance. These chip parts are mounted and configured, and this control board is accommodated in a board case 100 as shown in FIG. 8 and disposed at a predetermined position in the gaming machine housing.
[0003]
As shown in FIG. 8, the substrate case 100 is divided into a transparent resin base 101 and a cover 102, and after the control substrate is placed in the substrate case 100, the base 101 and the cover 102 are placed in the caulking portion 103. The substrate case 100 cannot be opened unless the caulking portion 103 is broken. Here, a holder not shown in FIG. 8 is fixed to a predetermined position inside the gaming machine casing, and the base 101 of the substrate case 100 is fixed to the gaming machine casing via the holder.
[0004]
As shown in FIG. 8, the caulking portion 103 includes, for example, six sealing members 104 to 109 provided on the right side surface of the substrate case 100, and each of these sealing members 104 to 109 is provided on the right side of the cover 102. The cover-side sealing portions 104a to 109a formed in a substantially cylindrical shape integrally with the surface and the right side surface of the base 101 are formed integrally with the cover-side sealing portions 104a to 109a. Base side sealing portions 104b to 109b are provided, and the cover side sealing portions 104a to 109a and the base side sealing portions 104b to 109b are fastened and sealed by screws. In FIG. 8, reference numerals 110, 111, and 112 denote pin headers derived from through holes formed in the cover 102. The pin headers are disposed on the control board in the board case 100 and connected to an external cable.
[0005]
At this time, in order to prevent the unauthorized built-in ROM from being attached by removing the original built-in ROM, first, both the sealing portions 104a and 104b of the first sealing member 104 are screwed to form the case 100. Sealed and the control board is transferred to the pachinko hall together with the substrate case 100 in the sealed state. Further, in the pachinko hall, both the second sealing portions 105a and 105b are screwed, and the sealed case 100 is fixed to the gaming machine housing via the holder.
[0006]
When the supervisory authority checks the pachinko hall in order to crack down on the alteration ROM, the first and second sealing members 104 and 105 that are screwed are cut and released, and after the check is finished, the third Both the sealing portions 106a and 106b of the sealing member 106 are screwed, and the fourth and fifth sealing members 107 and 108 are sequentially screwed and sealed every time such a supervising organization controls the altered ROM, for a total of three times. The structure is allowed up to the check by the supervisory body.
[0007]
When the control board is collected together with the board case 100, the fifth sealing member 108 is cut so that the board case 100 can be removed from the gaming machine housing, and the sixth sealing member 109 is screwed. The substrate case 100 is stopped and transported in a sealed state, and the control substrate is recovered together with the substrate case 100.
[0008]
[Problems to be solved by the invention]
However, since the conventional caulking portion 103 as described above is sealed by screwing, the engaging groove of the minus driver formed on the screw head has an inclined structure that cannot reversely move. It is possible to insert a special tool from the outside into the cylindrical cover side sealing parts 104a to 109a and loosen the screw in the fastening state by reversely moving it, and to perform some illegal act on the control board, There was a possibility that the so-called goto action could not be prevented.
[0009]
In particular, fraud is performed between the time when both of the sealing portions 104a and 104b of the first sealing member 104 are screwed and the substrate case 100 is sealed until it is transported to the pachinko hall. In many cases, an improvement measure for preventing fraud with respect to the structure of the first sealing portions 104a and 104b is desired.
[0010]
In view of the above, an object of the present invention is to reliably seal a substrate case that accommodates a control substrate and prevent illegal acts from the outside.
[0011]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention is provided in a board case that is divided into a base and a cover and is fixed to a gaming machine housing, and a control board for a gaming machine is accommodated in the board case to In a sealing device for a control board case for a gaming machine for sealing a board case, a locking portion formed on one of the base or the cover, and an inner side of the other of the base or the cover, the base being the cover A locked portion that locks the locking portion by covering and formed in the vicinity of the locked portion on the other side of the base or the cover, and the locking portion is locked to the locked portion. And a reinforcing portion that sometimes abuts on one inner side of the base or the cover and prevents the base or the cover in the vicinity of the locking portion from bending in the direction of engaging and disengaging the locking portion. Features Claim 1).
[0012]
According to such a configuration, since the locking portion is locked to the locked portion by covering the base with the cover, the board case can be sealed by locking the locking portion to the locked portion. it can. At this time, since the locked portion is formed inside the other side of the base or the cover, it is possible to prevent the locked portion from being locked and the locked portion from being crafted from the outside, and to ensure illegal acts. Can be prevented.
[0013]
Furthermore, when the locking portion is locked to the locked portion , the reinforcing portion comes into contact with the inner surface of the base or cover near the locking portion, so that the base or cover near the locking portion holds the locking portion. Bending in the direction of engagement / disengagement can be prevented by the reinforcing part, and unlocking of the locking part with the locked part by bending the base or cover near the locking part from the outside is prevented in advance. And fraud can be prevented more reliably.
[0017]
In the present invention, the locked portion includes a recess formed inside the protrusion, and a groove formed to extend to the rear end of the cover continuously from the upper and lower ends of the recess, A V-shaped cut is formed in the rear end surface of the base or the cover that contacts the rear end of the groove, and the locking portion includes a concave cutout formed on the outer front side of the protrusion. (Claim 2 ). According to such a configuration, the thickness of the periphery of the recess is thinner than the thickness of the right side surface of the base or cover due to the groove formed in the locked portion, and a V-shaped notch is formed at the rear end of the groove. When the part to be locked is cut off, it becomes easy to crack along the thin groove from the notch, and the locking part once locked and the part to be locked are unlocked. Becomes easier. Further, since the notch portion is formed in the locking portion, the locked portion is formed when the locked portion is separated while the locking portion and the locked portion are locked. The tip of the flathead screwdriver can be easily inserted between the cover and the end surface of the base.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment when the present invention is applied to a slot machine as a gaming machine will be described with reference to FIGS. However, FIG. 1 is a front view of the slot machine, FIGS. 2 and 3 are a front view and a right side view of a part of the case, FIG. 4 is an exploded perspective view of the other part, and FIG. FIG. 6 is a sectional plan view in a different section of FIG. 5, and FIG. 7 is a sectional plan view in a different state of FIG.
[0019]
The slot machine in this embodiment is configured as shown in FIG. 1, for example. That is, as shown in FIG. 1, in the slot machine 1, the front surface of the housing 3 is closed by the front panel 5 so that it can be opened and closed, and the operation plate 7 is disposed at a substantially central height position of the front panel 5. A front plate 9 is disposed above the operation plate 7.
[0020]
The front plate 9 has three reel windows 11 arranged side by side. Left, middle, and right rotating reels are arranged inside each reel window 11, and next to the rightmost reel window 11, A liquid crystal display 13 for displaying a game effect screen is provided, and each reel window 11 is set so that three symbols of each reel can be seen.
[0021]
Further, the operation plate 7 includes a credit medal button 15 for inserting from a credited medal, a start lever 17 for starting rotation of each reel, first to third stop buttons 19, 21, 23, and A medal slot 25 and a payout button 27 are provided. In addition, a winning line is drawn on the front panel 9, an effective display lamp 31 for displaying an active line in the winning line, various effect display lamps 33 for displaying a bonus game state, and the number of credit medals are displayed. A medal number display 35 is disposed on the front plate 9, and a medal payout outlet 37 and a medal receiver 39 are provided below the operation plate 7.
[0022]
By the way, a board case that houses a control board on which chip parts such as a CPU, a ROM, and a RAM are mounted is disposed on the upper side inside the housing 3. As shown in FIGS. 2 and 3, the substrate case 41 is divided into a transparent resin base 43 and a cover 45, and the control substrate 47 (see FIGS. 5 to 7) is accommodated in the substrate case 41. The base case 43 and the cover 45 are caulked and sealed at the right caulking portion, and the substrate case 41 is fixed to a holder fixed inside the housing 3, and the substrate case 41 cannot be opened unless the caulking portion is broken. It has a structure. An engaging portion and an engaged portion made of a combination of projections and recesses are formed on the left side of the base 43 and the cover 45, and the left side of the base 43 and the cover 45 is freely detachable by these engaging portions and the engaged portion. Is engaged.
[0023]
By the way, two types of sealing structures are adopted for the caulking part, one of which is a locking seal part by a locking structure, and the other is a screw sealing part. As shown in FIGS. 2 to 6, the former locking and sealing portion 49 is formed integrally with a protrusion 51 formed on the right side surface of the base 43 and protrudes forward inside the protrusion 51 and is locked at the tip thereof. A locking portion 53 including a locking body 53 b having a claw 53 a is provided, and a front and rear ridge 55 formed on the right side surface of the cover 45, and a recess 57 formed inside the ridge 55. And a grooved portion 61 that includes a groove 59 that is continuous with the upper and lower ends of the concave portion 57 of the cover 45 and extends to the rear end of the cover 45. In particular, as shown in FIG. 5, by covering the base 43 with the cover 45, the locking claw 53 a of the locking portion 53 is locked to the concave portion 57 of the locked portion 61. Sealed.
[0024]
Here, due to the groove 59, the thickness around the recess 57 is thinner than the thickness of the right side surface of the cover 45, and the right rear end surface of the cover 45 that hits the rear end of the groove 59 is referred to as a V-shaped notch. As will be described later, the slit 63 is set so that a crack is easily formed along the thin groove 59 when the locked portion 61 is separated.
[0025]
Further, as shown in FIG. 5 in particular, a concave notch 65 is formed on the outer front side of the protrusion 51 of the base 43, and this notch 65 is covered by the locking claw 53 a of the locking part 53. In order to form a gap for facilitating insertion of the tip of the minus driver between the end surface of the cover 45 when the locked portion 61 is separated in a state where the locked portion 61 is locked in the recessed portion 57. belongs to.
[0026]
In particular, as shown in FIG. 7, a rectangular spacer 67 is removably inserted into the recess 57, and if the spacer 67 is inserted into the recess 57, the locking portion 53 is engaged. When the base 43 is covered with the cover 45 without being locked to the stopper 61, the locking claw 53a is prevented from being locked to the recess 57. The shape of the spacer 67 may be a shape (for example, a concave shape) that fits into the recess 57 and a groove 59 that is continuous with the recess 57.
[0027]
As shown in FIGS. 3 to 7, a pair of ribs 69 are formed as reinforcing portions near the locked portion 61 of the cover 45, and the locking claws 53 a of the locking portion 53 are connected to the locked portion 61. Both ribs 69 come into contact with the right inner surface of the base 43 when the recess 57 is engaged. At this time, the upper and lower wall surfaces constituting the ridge portion 55 are extended further rearward than the rear end surface of the cover 45, and both ribs 69 are integrally formed with the cover 45.
[0028]
The abutment of the rib 69 can prevent the base 43 in the vicinity of the locking portion from being bent, and the locking of the locking portion 53 with the locked portion 61 can be released by bending the base 43 from the outside. Is preventing.
[0029]
As shown in FIGS. 2 to 6, the screw seal portion 71 described above is substantially the same as the conventional structure using screws, and is formed on the right side surface of the cover 45 and below the locking seal portion 49. A plurality (here, five) of cover-side sealing portions 73B, 73C, 73D, 73E, 73F and a plurality of cover-side sealing portions 73B to 73F formed on the right side surface of the base 43 (see FIG. Here, five base-side sealing portions 75B, 75C, 75D, 75E, and 75F and screws that are screwed into the respective base-side sealing portions 75B to 75F from the respective cover-side sealing portions 73B to 73F side (FIG. Not shown).
[0030]
As shown in FIGS. 2 and 3, each of the cover side sealing portions 73 </ b> B to 73 </ b> F is integrally formed on the right side surface of the cover 45 via one flexible cutting piece 77 having flexibility. A cylindrical body 79 is formed, and a screw is screwed to a boss 81 held inside the cylindrical body 79 via a plurality of holding beams. Here, the screw may be either a normal minus screw or a plus screw, but in order to prevent unauthorized acts more reliably, it is a minus screw and has an inclined structure so that the engagement groove of the minus driver cannot reversely move. It is desirable that
[0031]
On the other hand, as shown in FIG. 3 in particular, each of the base-side sealing portions 75B to 75F is a short piece integrally formed on the right side surface of the base 43 via a flexible severable support piece (not shown). It consists of a cylindrical body 83. At this time, as shown in FIG. 2, the support pieces 77 of the cover-side sealing portions 73B to 73F and the support pieces on the base-side sealing portions 75B to 75F are overlapped in front view, but these support pieces are front-facing. It is desirable to form them so as not to overlap with each other. In this way, the breakage of each support piece 77 can be easily visually recognized from the outside.
[0032]
In addition, in order to fix the substrate case 41 to a holder (not shown) fixed at a predetermined position in the upper portion of the housing 3, for example, 1 to 4 of the first to fifth base side sealing portions 75 </ b> B to 75 </ b> F. The cylindrical body 83 forming the second base side sealing portions 75B to 75E is disposed in contact with the holder so as to communicate with the screw holes on the holder side, and when the screws are screwed, the cover side sealing portions 73B to 73E The screw loosely passed from the cylindrical body 79 side to the hole of the cylindrical body 83 of the base side sealing portions 75B to 75E is also screwed into the screw hole of the holder.
[0033]
By the way, as in the conventional case, in order to prevent the unauthorized ROM from being attached by removing the regular ROM on the control board 47 originally built in, first, the locked portion in the locking seal portion 49 is used. The spacer 67 fitted in the recess 57 of 61 is removed, the base 43 is covered with the cover 45, and the locking claw 53a of the locking portion 53 is locked to the recess 57, whereby the substrate case 41 is sealed. The control substrate 47 is transferred to the pachinko hall together with the substrate case 41 in this sealed state.
[0034]
Further, in the pachinko hall, screws are screwed into the base side sealing portion 75B and the holder from the boss 81 side of the first cover side sealing portion 73B in the screw sealing portion 71, and the substrate case 41 in the sealed state is placed inside the housing 3. Fixed in place.
[0035]
When the supervisory authority checks the pachinko hall in order to control the alteration ROM, the tip of the minus driver is inserted into the gap of the cutout portion 65 of the locking seal portion 49, and extends along the thin groove 59 from the cutout 63. And the locked portion 61 is separated, the locking of the locking portion 53 with the locked portion 61 is released, and the first cover-side sealing portion 73B in the sealed state, the base side The sealing portion 75B is cut at the supporting piece 77 that supports the cover-side sealing portion 73B and the supporting piece that supports the base-side sealing portion 75B . Thus, after the seal is released and the cover 45 can be opened, a predetermined check operation is performed. After the check is finished, the second cover side seal portion 73C of the screw seal portion 71 is shifted from the boss 81 side to the base side. Screws are screwed into the sealing portion 75C and the holder, and the substrate case 41 is sealed again. At the same time, the substrate case 41 is fixed to the housing 3 via the holder.
[0036]
Each time the alteration ROM is controlled by such a supervisory body, the third and fourth cover side sealing portions 7 3 D and 7 3 E of the screw sealing portion 71 are joined to the base side sealing portions 75 D and 75 E and the holder by screws. Then, the substrate case 41 is sealed.
[0037]
When the control substrate 47 is recovered together with the substrate case 41, the fourth cover side sealing portion 73E and the base side sealing portion 75E sealed by the screw sealing portion 71 support the cover side sealing portion 73E. The support piece that supports the piece 77 and the base-side sealing portion 75E is cut and released from the sealing so that the substrate case 41 can be removed from the inside of the housing 3 and the fifth cover-side sealing of the screw sealing portion 71 is performed. Screws are screwed into the base-side sealing portion 75F from the boss 81 side of the portion 73F, the substrate case 41 is sealed again, the substrate case 41 is brought into a state where it can be conveyed in a sealed state, and the control substrate 47 is brought together with the substrate case 41. To be recovered.
[0038]
Therefore, according to the above-described embodiment, the cover 43 is covered with the cover 45 so that the locking claw 53a of the locking portion 53 is locked to the concave portion 57 of the locked portion 61. The board case 41 can be easily sealed by the locking to the locking part 61.
[0039]
Moreover, since the to-be-latched part 61 is formed inside the cover 45, it can prevent that the outside is crafted with respect to the latching | locking part 53 and the to-be-latched part 61 of a latching state, and an illegal act is ensured. It becomes possible to prevent.
[0040]
Further, since the rib 69 contacts the inner surface of the base 43 in the vicinity of the locking portion 53, the bending of the base 43 in the vicinity of the locking portion 53 can be prevented by the rib 69, and the base 43 is bent from the outside. Unlocking of the locking portion 53 with the locked portion 61 can be prevented in advance, and unauthorized actions can be more reliably prevented.
[0041]
The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.
[0042]
For example, in the above-described embodiment, the case where one locking seal portion 49 and a plurality of screw sealing portions 71 are used in combination has been described. However, a plurality of locking sealing portions 49 may be provided. Of course.
[0043]
In the embodiment described above, the case where the locking portion 53 is formed on the base 43 and the locked portion 61 is formed on the cover 45 has been described. On the contrary, the locking portion 53 is formed on the cover 45. The latched portion 61 may be formed on the base 43. At this time, the latching portion between the latching portion and the latched portion cannot be accessed from the outside. It may be arranged.
[0044]
Further, the structure of the locking portion 53 and the locked portion 61 is not limited to the above-described locking claw 53a and the concave portion 57 to which the locking claw 53a is locked. .
[0045]
In the above-described embodiment, screws are screwed into the base-side sealing portions 75B to 75E and the holder from the boss 81 side of the first to fourth cover-side sealing portions 73B to 73E in the screw sealing portion 71, and the holder is inserted through the holder. The case where the substrate case 41 is fixed to the housing 3 has been described. However, the cover side sealing portions 73B to 73F and the base side sealing portions 75B to 75F of the screw sealing portion 71 are screwed into the substrate case 41. A means for fixing the substrate case 41 to the housing may be provided separately from the screw seal portion 71 only by sealing the. In this case, all the sealing parts can be constituted by the locking seal part 49.
[0046]
Further, in the above-described embodiment, the cover side sealing portions 73B to 73F are configured by the cylindrical body 79, and the base side sealing portions 75B to 75F are configured by the cylindrical body 83, respectively. Instead of 79 and 83, a rectangular tube may be used.
[0047]
In the embodiment described above, the cover side sealing portions 73B to 73F and the base side sealing portions 75B to 75F are each five, but the number of these is not particularly limited to five.
[0048]
Furthermore, in the above-described embodiment, the case where the present invention is applied to a slot machine has been described. However, the present invention can also be applied to other gaming machines such as a pachinko machine, and in that case, each of the above-described embodiments and The same effect can be obtained.
[0049]
【The invention's effect】
As described above, according to the first aspect of the present invention, since the locking portion is locked to the locked portion by covering the base with the cover, the locking portion is locked to the locked portion. Thus, the substrate case can be easily sealed.
[0050]
In addition, since the locked portion is formed inside the other side of the base or the cover, it is possible to prevent the locked portion from being locked and the locked portion from being crafted from the outside, and to ensure illegal acts. It becomes possible to prevent.
[0051]
Furthermore, when the locking portion is locked to the locked portion , the reinforcing portion comes into contact with the inner surface of the base or cover near the locking portion, so that the base or cover near the locking portion holds the locking portion. Bending in the direction of engagement / disengagement can be prevented by the reinforcing part, and unlocking of the locking part with the locked part by bending the base or cover near the locking part from the outside is prevented in advance. And fraud can be prevented more reliably.
[0054]
According to the second aspect of the present invention, the thickness of the periphery of the recess is thinner than the thickness of the right side surface of the base or cover due to the groove formed in the locked portion, and the rear end of the groove Since the V-shaped notch is formed in the slit, it becomes easier to crack along the thin groove from the notch when the locked portion is separated, and once the locked portion and the locked portion are locked. Can be easily released. Further, since the notch portion is formed in the locking portion, the locked portion is formed when the locked portion is separated while the locking portion and the locked portion are locked. It is possible to easily insert the tip of a flathead screwdriver between the cover and the end face of the base.
[Brief description of the drawings]
FIG. 1 is a front view of a slot machine according to an embodiment of the present invention.
FIG. 2 is a front view of a part of the case according to the embodiment of the present invention.
FIG. 3 is a right side view of a part of the case according to the embodiment of the present invention.
FIG. 4 is an exploded perspective view of another part of the embodiment of the present invention.
FIG. 5 is a cutaway plan view of a different part in the embodiment of the present invention.
6 is a cross-sectional plan view taken along a different cross section of FIG. 5;
7 is a cut plan view in a different state of FIG. 5. FIG.
FIG. 8 is a perspective view of a conventional example.
[Explanation of symbols]
1 slot machine (game machine)
3 Case (Game machine case)
41 board case 43 base 45 cover 47 control board 49 locking seal 53 locking section 53a locking claw 53b locking body 57 recess 59 groove 61 locked section 69 rib (reinforcement section)

Claims (2)

Sealing of the control board case for a gaming machine provided in a board case that is divided into a base and a cover and is fixed to the gaming machine housing, accommodating the control board for the gaming machine in the board case and sealing the board case In the device
A locking portion formed on one of the base or the cover;
A locked portion that is formed on the other side of the base or the cover and that the locking portion locks by covering the base with the cover;
Formed in the vicinity of the other locked portion of the base or the cover, and when the locking portion is locked to the locked portion, abuts on one inner side of the base or the cover to lock A control board case sealing device for a gaming machine, comprising a reinforcing portion that prevents the base in the vicinity of the portion or the cover from being bent in a direction to engage and disengage the locking portion. The locked portion includes a protrusion formed on a side surface of the base or the cover, a recess formed inside the protrusion, and an upper and lower ends of the recess and extends to a rear end of the cover. And formed grooves,
A V-shaped notch is formed in the rear end surface of the base or the cover that contacts the rear end of the groove,
The locking portion is a position corresponding to the ridge portion, and includes a protrusion formed on a side surface of the base or the cover, and a concave notch formed on the outer front side of the protrusion. The sealing device for a control board case for a gaming machine according to claim 1 .

Images