JP2000079244A - Control board housing box for game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To engage one side each of a base body and a lid body without causing any clearance by a simple structure and to reduce the disposing number of sealing members. SOLUTION: This control board housing box is provided with the base body 12 and the lid body 13 detachably, openably and closably mounted to one side of the base body 12 by a detaching/opening/closing means. The detaching/ opening/closing means is provided with an engaging hole part 120 provided with an opening part 120a and a projection part 130 provided with an engaging edge 131 to be disengageably inserted to the engaging hole part 120. Between the base body 12 and the lid body 13, a sealing part for sealing the lid body 13 to the base body 12 in a closed state at the opposite part of one side where the engaging hole part 120 and the engaging edge 131 are formed is disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a game machine, and more particularly to a technique for preventing a semiconductor device for controlling the game machine from being illegally replaced.

[0002]

2. Description of the Related Art In a gaming machine such as a pachinko machine, a slot machine, and the like, various devices have been conventionally devised for a box for accommodating a control device in order to prevent an illegal game by unauthorized modification of the control device. . Here, the unauthorized modification of the control device includes, for example, replacement of a semiconductor device (for example, ROM). Further, as various measures, for example, a cover covering the control device is fixed to the case with screws or the like, and a sealing seal is attached between the cover and the case. In this way, opening of the cover is prohibited, and unauthorized modification of the control device can be prevented. On the other hand, when the cover is opened and the tampering is performed, the fact that the tampering has been performed can be easily found because the sealing seal has been cut.

[0003]

However, in the fraud prevention method using a seal, the cover can be opened only by removing the seal. Therefore, unauthorized modification of the control device can be performed relatively easily. Also,
If the seal is cleverly reapplied after tampering, it becomes difficult to detect the fact of tampering. On the other hand, in some cases, unauthorized modification of the control device is performed without opening the cover. For example, a method of inserting a foreign object such as a tool or a wire through a hole or a gap in a cover or the like to replace a semiconductor device. In this case, even the fact that the cover was opened cannot be detected. The present invention has been made in view of such a point, and an object of the present invention is to prevent a semiconductor device controlling a gaming machine from being illegally replaced.

[0004]

According to a first aspect of the present invention, there is provided a control apparatus for a game machine, comprising: a control board on which a semiconductor device for controlling the game machine is detachably mounted; and a cover for covering the control board. The gap between the semiconductor device and the cover is made shorter than the distance at which the semiconductor device can be attached and detached. According to the control device for a gaming machine described in claim 1, the gap between the semiconductor device and the cover is shorter than the distance at which the semiconductor device can be attached and detached. Therefore, even if the semiconductor device is illegally replaced with a foreign object such as a tool or a wire, the semiconductor device cannot be attached / detached. Therefore, when the control board is covered with the cover,
It is possible to reliably prevent the semiconductor device from being illegally replaced.

[0005]

According to a second aspect of the present invention, there is provided a game machine control device according to the first aspect, wherein a cover of a portion corresponding to the semiconductor device is provided with a lens. It was formed in a shape. Here, the “part corresponding to the semiconductor device” corresponds to at least a part that contacts the semiconductor device or a part that is located at least in the vicinity of the semiconductor device. According to the control device for a gaming machine described in claim 2, the cover of the portion corresponding to the semiconductor device is formed in a lens shape. Therefore, characters, symbols, and the like displayed on a semiconductor device and a seal attached to the semiconductor device,
Figures and the like are enlarged. Therefore, characters, symbols, figures, and the like are easy to see.

[0006]

According to a third aspect of the present invention, there is provided a game machine control device according to the first aspect of the present invention, which corresponds to a portion of the semiconductor device which covers substantially the entire top surface of the semiconductor device. The cover of the part to be formed was formed transparent. Here, “the portion corresponding to a portion that covers substantially the entire upper surface of the semiconductor device” includes a portion that contacts at least a portion that covers the substantially entire upper surface of the semiconductor device, or a portion that is located at least from a portion that covers at least the substantially upper surface of the semiconductor device. Is equivalent. According to the control device for a gaming machine described in claim 3, at least a portion of the cover is in contact with or located near a portion covering substantially the entire upper surface of the semiconductor device. In addition, the portion is formed transparent, and does not partially contact the upper surface of the semiconductor device. Therefore, characters, symbols, figures, and the like displayed on the semiconductor device and a sticker or the like attached to the semiconductor device can be reliably recognized. In addition, when a sticker is attached to a semiconductor device, characters, symbols, figures, and the like can be reliably recognized regardless of the position on the upper surface of the semiconductor device.

[0007]

According to a fourth aspect of the present invention, there is provided a game machine control device according to the first, second, and third aspects, wherein the cover has an axis on one side. The semiconductor device was mounted on a control board near the axis. According to the control device for a gaming machine described in claim 4, when the control substrate is covered with a cover that can be opened and closed about one side as an axis, the semiconductor device is mounted on the control substrate near the axis. Since the semiconductor device is located near the axis, even if the cover is slightly opened, the gap between the semiconductor device and the cover does not widen so much.
Therefore, even if the semiconductor device is illegally replaced with a foreign object such as a tool or a wire, the attachment / removal of the semiconductor device is prevented.
Removal is difficult. Therefore, it is possible to more reliably prevent the semiconductor device from being illegally replaced.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In each embodiment,
An example in which the present invention is applied to a pachinko machine which is one of gaming machines will be described. Here, a control board on which a semiconductor device for controlling the pachinko machine is removably mounted, and a cover covering the control board are installed at predetermined portions of the pachinko machine. Further, a ROM is applied to the semiconductor device. Specifically, an EPROM is used as the ROM, but a mask ROM, an EEPROM,
A semiconductor device, such as a flash memory, which can hold a program even after power is cut off may be used.

[First Embodiment] First, a first embodiment will be described with reference to FIGS. In FIG. 1 showing a partially cutaway front view of the control board storage box and FIG. 2 showing the same sectional view, a control board storage box 10 made of synthetic resin in a pachinko machine has a case 12 for storing a control board 11 and a case 12. And a cover 13 attached to the case 12 to cover the control board 11. The gap between the control board storage box semiconductor device and the cover is shorter than the distance at which the semiconductor device can be attached and detached. Therefore, even if the semiconductor device is illegally replaced with a foreign object such as a tool or a wire, the semiconductor device cannot be attached / detached. Therefore, in a state where the control board is covered with the cover, it is possible to reliably prevent the semiconductor device from being illegally replaced. Reference numeral 10 denotes a back side of the game board, which is detachably connected to a back cover (not shown) (e.g., an accessory protection cover or a back mechanism plate) which is mounted on the back of the game board of the pachinko machine, as is well known. It is installed in. A front view of the case 12 is shown in FIG.

As shown in FIG. 3, the case 12 has a substantially square plate shape, and has a side wall 12a on an outer peripheral portion thereof. The four corners of the case 12 are each provided with a prepared hole 14a.
Are formed respectively. In addition,
The lower left boss 14 in FIG. 3 is set as a reference boss for fixing the cover, and the remaining bosses are set as mounting bosses for fixing the substrate.

On the left and right side surfaces of the case 12, a pair of upper and lower locking pins 15 are projected. The locking pins 15 are respectively engaged with engagement holes (not shown) of left and right set plates 16 (see two-dot chain lines in FIG. 1) arranged on the back cover of the game board. With the engagement between the locking pins 15 and the set plate 16, the control board storage box 10 is supported by the back cover of the game board.

As shown in FIGS. 1 and 2, the case 12 houses the control board 11 with almost no gap. The control board 11 has a mounting surface 11a on the front surface and a solder surface 11b on the back surface. The mounting surface 11a has a ROM 1
8. In addition to various connectors 19, RAM, IC,
Components such as fuses are mounted. A shield plate 20 made of a conductive material such as punched metal is interposed between the case 12 and the control board 11 (see FIG. 2). The shield plate 20 blocks static electricity due to rolling friction of the pachinko ball or the like and prevents generation of noise due to the influence of the static electricity on the electronic components of the control board 11.

The control board 11 is fastened at its four corners by fixing screws 21 formed of tapping screws which are screwed into the prepared holes 14a of the bosses 14 of the case 12. The lower fixing screw 21 in FIG. 1 also serves as a cover fixing reference screw for fixing the cover 13. The cover 13 is formed in a substantially rectangular shape smaller than the case 12 so as to expose the left edge and the lower edge of the control board 11, and has a side wall 13a on the outer periphery (see FIG. 2). . The tip of the side wall 13a forming the left side and the lower side of the cover 13 abuts on the control board 11,
The side wall 13a forming the upper side surface and the right side surface of the cover 13 forms a series of side walls with the side wall 12a of the case 12.

Various connectors 19 are arranged on the mounting surface 11a of the control board 11 which is not covered by the cover 13.
Also, a ROM arranged on the mounting surface 11a of the control board 11
A rectangular box-shaped ROM cover 23 is fitted over 18 and is also covered with the cover 13. The upper surface of the ROM cover 23 is in contact with the cover 13.

The side wall 1 forming the left side surface of the cover 13
A recess 24 is provided in 3a. In the recess 24, a heat radiating member (heat sink) 25 to which a heat source such as a power transistor on the control board 11 that generates a large amount of heat is attached is exposed, and the heat radiating effect is enhanced. The cover 13 is provided with a large number of small-diameter heat radiation holes 26 for releasing heat generated inside the control board storage box 10.

As shown in FIG. 1, a sticker 27 for attaching a model name sticker is provided at the center of the front of the cover 13. At the lower right side of the front of the cover 13, a mounting hole 28 for a probability changing key switch is provided. In the upper right portion of the front of the cover 13, a portion 29 for attaching a serial number sticker is set in a portion located above the ROM 18 (see FIG. 3).

The side walls 12a and 13a forming a series of the case 12 and the cover 13 are alternately fitted when the case 12 and the cover 13 are connected. More specifically, as shown in an exploded perspective view showing a fitting structure of the case 12 and the cover 13 in FIG. The projections 31 and the fitting recesses 32 are formed alternately so as to engage with each other. When the case 12 and the cover 13 are connected to each other, the projections 31 and the fitting recesses 32 are fitted to each other to form a series of side walls 12a and 13a. It is connected in a shape.

As shown in FIG. 1, the cover 13 is provided with a total of four positioning holes 33 in the upper, lower, left and right directions having a diameter larger than the heat radiation holes 26. The positioning hole 33 is formed in a bottomed so-called hollow shape that does not penetrate. This is for the purpose of minimizing the intrusion of foreign matter into the control board storage box 10, and prevents unauthorized modification by wires or the like from the positioning holes 33.

On the other hand, a positioning projection 34 protruding from the lower surface of the case 12 is located on the same axis as the positioning hole 33 (see FIG. 2). For this reason, for example, when a plurality of control board storage boxes 10 are stacked, the positioning protrusions 34 of the upper control board storage box 10 engage with the positioning holes 33 of the lower control board storage box 10, thereby controlling the control board storage box 10. The collapse of the load of the substrate storage box 10 can be prevented. This is effective when the control board storage box 10 is transported, when the pachinko machine is stored in an assembly factory, or the like. Further, if the control of the pachinko machine becomes complicated and the area of the control board 11 must be increased,
It is difficult to accommodate the control board 11 in a limited space on the back side of the pachinko machine, so it is conceivable to use the control board 11 divided into a plurality of pieces. When the same control board storage box 10 is stacked and mounted on a pachinko machine without making a simple control board storage box 10, the positioning function by the engagement between the positioning holes 33 and the positioning projections 34 causes a positional deviation between the two. Can be advantageously prevented.

The positioning projections 34 prevent the control substrate storage box 10 from being collapsed when the control substrate storage boxes 10 are stacked, and the control plate storage box 10 is attached to the back surface (specifically, a protective cover or the like) of the pachinko machine. It also has a function of securely holding the control board storage box 10 when mounted via the interface. That is, usually, the set plate 16
Is flexible, the set plate 16 is bent by an external force from the lateral direction (the left-right direction in FIG. 1) of the control board storage box 10 when the positioning projection 34 is not provided, and the control board storage box 10 is There is a possibility that it will come off from the protective cover and the like. For this reason, a hole that engages with the positioning protrusion 34 is provided on the protective cover or the like, and the positioning protrusion 34 is engaged with the hole of the protective cover when the control board storage box 10 is attached to the protective cover or the like.
It is possible to prevent the control board storage box 10 from falling off due to a lateral external force.

As shown in FIG. 1, an appropriate number of sealing section groups 36 are arranged on the side of the control board storage box 10. In the present embodiment, the sealing portion groups 36 are set at a total of three places: a central upper portion, a lower right portion, and a lower left portion of the control board storage box 10. Each sealing section group 36 includes a plurality (four in the figure) of sealing sections 3 that can be sealed by sealing screws 38.
7 is provided. Since the sealing member groups 36 have the same configuration, the sealing member group 36 at the lower right portion in FIG.
9 will be described in detail with reference to FIG. 9, and the description of the other sealing unit groups 36 will be omitted. 4 is a front view of the sealing group, FIG. 5 is a cross-sectional view showing a sealing state of the sealing section, FIG. 6 is a cross-sectional view showing a temporary fixing state of the sealing screw, FIG.
FIG. 8 is a front view of a sealing section group showing a sealing number, and FIG. 9 is an explanatory view of a sealing screw.

Before explaining the sealing portion 37, a sealing screw 38
Will be described with reference to FIG. In FIG. 9, the sealing screw 38 is a one-way type screw that can be tightened but cannot be loosened, (a) is a plan view of the sealing screw, (b) is a front view, and (c). Is the bottom view, (d)
Is a sectional view of a screw thread. The sealing screw 38 is shown in FIG.
As shown in (c), the shaft portion 39 has a thread 39a on the outer periphery, and a head 40 having an engagement hole 40a on the upper surface for engaging with a rotary operation member such as a cross driver. Head 4
The 0 engagement hole 40a engages in the direction of tightening the rotary tool by a cross driver or the like (see the direction of arrow A in the figure (a)), and conversely, in the loosening direction (arrow B in the figure (a)). (Refer to the direction). As shown in FIGS. 8B and 8C, four grooves 39b on the circumference of the thread 39a of the shaft 39 are provided on the thread 3a.
9a. The thread angle of the thread 39a is vertically asymmetric as shown in FIG.

The sealing screw 38 having the above-described structure enables the rotary tool to be tightened, while the head 4 in the loosening direction of the rotary tool (see the arrow B direction in FIG. 9A).
By reducing the engagement force of 0 and increasing the rotational resistance of the screw thread 39a in the loosening direction, removal from the tightened state becomes impossible. The sealing screw 38 may be, for example, Gizatite, part number GTP3XL (trade name, manufactured by Nitto Seiko Co., Ltd.), or Japanese Utility Model Laid-Open Publication No. 59-47114,
It is also possible to substitute the screw disclosed in JP-A-07-07.

Next, the sealing section 37 will be described. FIG.
As shown in FIG. 5, a sealing boss portion 42 having a bottomed pilot hole 42a is formed on the side wall 12a of the case 12 so as to protrude through an opening portion 42b. The side wall 13 of the cover 13
In a, a sealing fastening portion 44 corresponding to the sealing boss portion 42 of the case 12 is formed so as to protrude via an opening portion 44b. Each of the unsealing portions 42b and 44b is formed thin in a neck shape, and can be cut by a cutting tool such as a nipper or a cutter. Further, the sealing boss portion 42 and the sealing fastening portion 4
On the mating surface with No. 4, there is provided an engagement means comprising a circular engagement projection 46a and an engagement recess 46b which are fitted to each other.

The seal fastening portion 44 is formed in a substantially cylindrical shape, and has a screw hole 44a at the lower end in the figure.
A screw holding portion 47 is provided in a portion above the screw hole 44a in the drawing. In the upper half of the screw holding portion 47, 2
The plurality of slits 48 are formed (see FIG. 4). In FIG. 7, the outer diameter of the head 40 of the sealing screw 38 is d1,
Assuming that the outer diameter of the shaft portion 39 is d2, the inner diameter D1 of the screw holding portion 47, the inner diameter D2 of the screw hole 44a, and the inner diameter D3 of the prepared hole of the sealing boss portion 42 are D1 <d1D2> d2D3 <d2. It is formed to satisfy the relationship. Further, the sealing fastening portion 44 has a height that can accommodate the sealing screw 38.

In the sealing fastening portion 44, by inserting the sealing screw 38 into the screw holding portion 47, the screw holding portion 47 is expanded by the head 40 of the sealing screw 38 so as to open between the slits 48. The head 40 is temporarily fixed by being held by the elasticity that resists the expansion (see FIG. 6). Then, the sealing boss portion 42 of the case 12 and the cover 1
3 and the sealing fastening portion 44 is provided with the engaging convex portion 46a and the engaging concave portion 46.
b are located on the same axis through the fitting (see FIG. 6). Then, at the time of sealing, the sealing is performed by tightening the sealing screw 38 into the prepared hole 42a of the sealing boss portion 42 by a rotating tool (see FIG. 5).

As shown in FIG. 4, the four sealing portions 37 of the sealing portion group 36 are arranged from top to bottom for the first time, the second time,
The sealing portion 37 for the fourth time and the fourth time,
In the opening section 44b of No. 3, “1, 2, 3,.
The seal number 50 of “4” is assigned. Seal number 50 is better represented in FIG. At the completion of the assembly of the control board storage box 10, the sealing portion 37 of the sealing number 50 of "1" of each sealing portion group 36 is sealed by the sealing screw 38, and "2, 3, 4" of each sealing portion group 36 is sealed. The sealing portion 37 of the sealing number 50 is a spare and is not sealed. Note that the sealing number 50 can be attached by printing, engraving, or a resin molding die. In addition, Roman numbers, alphabets, symbols, and the like can be used in place of arithmetic numerals.

As shown in FIG. 4, the opening portion 4 of the cover 13
A fine mesh pattern 51 is formed on the upper surface of 4b by knurling together with the sealing number 50. Trace 51
Can be formed by a resin mold instead of knurling. In addition, the shape of the mesh pattern 51 may be streaks or bevels in addition to the illustrated grids. The mesh pattern 5
1 and the sealing number 50 are also provided on the lower surface of the opening portion 42b of the case 12 in the same manner as described above (not shown).

In the control board storage box 10 of the above-mentioned pachinko machine, the sealing part 37 of the sealing part group 36 with the sealing number 50 of "1" is sealed by the sealing screw 38 for sealingly removing the case 12 and the cover 13. Therefore, unauthorized modification of the control board 11 can be prevented.

In the case of an on-site inspection by the authorities, if the cover 13 is to be removed for a valid reason,
By cutting the unsealing portions 42b and 44b at the sealing number 50 of "1" of the three sealing portion groups 36, the cover 13 can be easily removed while the sealing screw 38 is tightened. Thereby, the mounting surface 11a of the control board 11
Inspection becomes possible. When opening the sealing portion 37, the opening portion 44 b of the cover 13 and the opening portion 4
At least one of 2b may be cut.

The sealing screw 38 temporarily fixed to the screw holding portion 47 of the sealing portion 37 having the sealing number 50 of "2" in the three sealing portion groups 36 is fastened to the sealing boss portion 42 by a rotating tool to seal. Then, the control board storage box 1
0 can be reused. By repeating the above,
Sealing can be performed again in the order of "3" and "4" of the sealing number 50. Therefore, the control board storage box 1 of the present embodiment
In the case of 0, sealing can be performed four times.

According to the control board storage box 10 described above, the sealing screw 38 is temporarily fixed to the sealing portion 37 in advance as shown in FIG. 6 so that the sealing screw 38 is used immediately for sealing. Can be. Therefore, it is possible to save the trouble of preparing the sealing screw 38 for sealing and to prevent the sealing screw 38 from being lost.

Since the sealing screw 38 is temporarily fixed and held by the elasticity of the screw holding portion 47, the temporary fixing operation of the sealing screw 38 can be performed more easily than the temporary fixing and holding by screwing, and the sealing screw 38 is inserted. Even if it is dropped, it can be easily pushed back, so that the position management of the temporary fixing of the sealing screw 38 can be easily performed.

Further, when the slit 48 of the screw holding portion 47 is cut halfway and the head 40 of the sealing screw 38 is engaged with the slit 48, tightening is performed with little resistance, and the final stage of tightening ( In FIG. 5), the outer diameter is smaller than that of the head 40, so that it is tightened with a large torque. Therefore, even if the tip of a rotary tool such as a screwdriver is glued to the sealing screw 38 with an adhesive or the like, and the sealing screw 38 is cleverly loosened, a sufficiently larger resistance than the adhesive force can be secured. The loosening of the screw 38 can be reliably prevented.

In the screw holding portion 47, the cover 13
When the sealing screw 38 is temporarily fixed in this state, even if the sealing screw 38 is inserted too deeply and the tip end of the sealing screw 38 protrudes from the lower surface of the sealing fastening portion 44, the cover 13 in the subsequent process is removed. At the time of attachment to the case 12, the tip of the sealing screw 38 comes into contact with the upper end of the prepared hole 42a of the sealing boss portion 42 of the case 12, and the sealing screw 38 is pushed back upward. do not do. Even when the sealing screw 38 is temporarily fixed after the cover 13 and the case 12 are assembled, the sealing screw 38 is lightly pressed from above.
Of the sealing boss portion 42 of the case 12 comes into contact with the upper end of the prepared hole 42a of the sealing boss portion 42, so that the sealing screw 38 can be temporarily temporarily fixed by hand.

Further, the sealing screw 38 may be temporarily fixed to all the screw holding portions 47 in a state where only the cover 13 is provided in the manufacturing process, or the screw holding portion 47 may be provided after the cover 13 and the case 12 are combined. May be temporarily fixed.

Further, since the sealing order of the sealing portion 37 is clearly displayed by the sealing number 50, the sealing order can be easily managed by a hall manager or the like, and an unauthorized remodeling operation can be easily found. .

For the purpose of unauthorized modification, the opening portions 42b, 44
When b is cut, the mesh pattern 5
1 is damaged, and it is technically difficult to repair the damaged mesh pattern 51. Therefore, it is possible to easily detect an illegal remodeling act from the damage state. Opening portions 42b and 44b
Since the seal number 50 is provided together with the mesh pattern 51, it is easy to detect the illegal remodeling even if the seal number 50 cannot be read by opening.

The RO in the control board storage box 10
M18 is surrounded by a ROM cover 23 as shown in FIG. 2, and the upper surface of the ROM cover 23 is in contact with the cover 13.
Can be prevented from being illegally modified. The ROM cover 23 may have any shape as long as there is no gap between the control board 11 and the cover 13.
For example, in the case of the above-described embodiment, it can be easily attached by fitting the ROM 18. When there are few circuit elements and wires on the control board 11 and there is ample space around the ROM 18, the ROM cover 23 can be formed in a cylindrical shape or an elliptical cylindrical shape.

Further, since a series of side walls 12a, 13a are formed by fitting the projecting pieces 31 of the case 12 and the cover 13 with the fitting recesses 32, the side walls 12a, 13a are subjected to an external force. But it is hard to be distorted. For this reason, the side walls 12a and 13a are pressed down,
Even if an attempt is made to create a gap between the case 3 and the case 12, there is no gap, so that an unauthorized remodeling attempt to insert a foreign substance such as a wire through the gap can be prevented.

The upper end position of the part (left part in FIG. 2) of the side wall 12a of the case 12 that does not abut against the side wall 13a of the cover 13 is larger than the contact position between the control board 11 and the side wall 13a. Since it is located at a high position, it is difficult to insert a wire or other foreign matter into the control board storage box 10 from between the side wall 13a of the cover 13 and the control board 11, which is also effective in preventing unauthorized modification.

Second Embodiment Next, a second embodiment will be described with reference to FIG. Since the second embodiment is a modification of the first embodiment, the modified portion will be described in detail, and the other overlapping description will be omitted.
In the third and subsequent embodiments, the same description will not be repeated.

In this embodiment, the temporary fixing structure of the sealing screw 38 of the first embodiment is modified. 11A is a plan view of a screw holding portion, and FIG. 11B is a cross-sectional view of a sealing portion. As shown in FIG. 11, four slits 48 of the screw holding portion 47 are provided in the circumferential direction. By increasing the number of slits 48 of the screw holding portion 47 in this manner, the elastic force of the screw holding portion 47 can be reduced, and the sealing screw 38 can be inserted into the screw holding portion 47 lightly. The number of the slits 48 of the screw holding portion 47 is appropriately selected and is not limited.

[Third Embodiment] Next, a third embodiment will be described with reference to FIG. In the present embodiment, the temporary fixing structure of the sealing screw 38 of the second embodiment is modified. In FIG. 12, (a) is a plan view of the screw holding portion,
(B) is a sectional view of the sealing portion, and (c) is a plan sectional view of the screw hole portion. As shown in FIGS. 12A and 12B, an appropriate number (four are shown in the figure) of retaining protrusions 53 projecting inward from the upper end of the screw holding portion 47. Further, as shown in FIG. 12C, the inner peripheral surface of the screw hole 44a has
An appropriate number (three are shown in the figure) of support protrusions 54 are formed.

As shown in FIG. 12 (b), the relationship among the inner diameter D1 of the screw holding portion 47, the inner diameter D4 of the opening of the retaining projection 53, and the inner diameter D5 of the opening of the support projection 54 is D1 ≧ d1. It is formed so as to satisfy the dimensional relationship of D4 <d1D5 <d2. Note that d1 is the outer diameter of the head 40 of the sealing screw 38, and d2 is the outer diameter of the shaft 39 (see FIG. 7).

In the screw holding portion 47, when the sealing screw 38 is inserted into the screw holding portion 47, the sealing screw 38
When the screw retaining portion 47 is expanded by the stopper projection 53 of the screw retaining portion 47 being hit by the head portion 40 and the sealing screw 38 is stored in the screw retaining portion 47, the screw retaining portion 47 is restored to the original state. Then, the sealing screw 38 is temporarily held in a state where it is prevented from coming off. Further, the stored sealing screw 38 is prevented from further descending by the support protrusion 54 of the screw hole 44a. When the sealing screw 38 is tightened, the support protrusion 54 is crushed by the thread 39a of the sealing screw 38.

According to the temporary fixing structure of the sealing screw 38 described above, the sealing screw 38 is temporarily held by being stored in the screw holding portion 47 in a retaining state. 2), no stress is applied to the screw holding portion 47 during the holding of the sealing screw 38, so that the holding force of the sealing screw 38 does not decrease.
The temporary fixing state can be continued for a long time.

Further, by providing the support projection 54 for preventing the sealing screw 38 from descending in the screw hole 44a, an increase in the tightening torque of the sealing screw 38 at the time of sealing can be suppressed. For example, the inner diameter D2 of the screw hole 44a and the sealing screw 3
By setting the outer diameter d of the shaft portion 39 of D8 to D2 <d2, it is possible to prevent the sealing screw 38 from descending. However, the screwing torque of the sealing screw 38 increases, but D2> d2. By providing the support protrusion 54 partially on the inner peripheral surface of the screw hole 44a, an increase in the tightening torque is suppressed.

When the support projection 54 is not provided with the inner diameter D2 of the screw hole 44a and the outer diameter d2 of the shaft portion 39 of the sealing screw 38 satisfying D2> d2, sealing is performed with the cover 13 alone. When the screw 38 is inserted, the tip of the shaft 39 of the sealing screw 38 hangs from the screw hole 44a. In this case, when the cover 13 and the case 12 are combined, the tip of the sealing screw 38 comes into contact with the upper end of the prepared hole 42a of the sealing boss 42, and the sealing screw 38 is held in a raised state. Also, if the sealing screw 38 is inserted into the screw holding portion 47 after the cover 13 and the case 12 are combined, the tip of the sealing screw 38 hits the upper end of the prepared hole 42a of the sealing boss portion 42 and is held in the same manner as described above. Will be.

Fourth Embodiment Next, a fourth embodiment will be described with reference to FIG. This embodiment is a third embodiment.
The temporary fixing structure of the sealing screw 38 is modified. In FIG. 13, (a) is a sectional view of the sealing portion, (b)
FIG. 4 is a perspective view of a retaining cap. As shown in FIG. 13, the retaining projection 53 of the screw retaining portion 47 in the third embodiment is eliminated, and a retaining cap 56 that covers the upper end of the screw retaining portion 47 is provided instead. The retaining cap 56 has four cap main portions 56a connected to each other by a connecting portion 56b so as to cover the screw holding portions 47 of all the sealing portions 37 of the sealing portion group 36. Each cap main portion 56a is provided with a head 40 of a sealing screw 38.
Has a retaining hole 57 smaller than the outer diameter d1 (see FIG. 7). The retaining hole 57 has a diameter that does not hinder insertion of the rotating tool at least. The retaining cap 56 is formed of a soft resin material such as a polypropylene resin, and is formed so that the cap main portion 56a can be fitted to the screw holding portion 47 with its deformation. In this case, the slit 48 of the screw holding portion 47 is unnecessary.

According to the temporary fixing structure of the sealing screw 38 described above, the cap main part 56a of the retaining cap 56 is attached to each screw holding part 47 of the sealing part group 36, and the sealing screw 38 is pulled out to the screw holding part 47. By storing in the stopped state, it can be temporarily held.

It is also possible to insert the sealing screw 38 into the screw holding portion 47 one by one. However, as shown in FIG. 13A, the edge of the retaining hole 57 of the cap main portion 56a on the retaining side is secured. When the adhesive 58 is applied to the control board storage box 10, the retaining cap 56
The head 40 of the sealing screw 38 can be temporarily attached via the adhesive 58. Then, in the final step of assembling the control board storage box 10, if the sealing screw 38 is inserted into the screw holding portion 47 together with the attachment of the retaining cap 56 to the screw holding portion 47, the lead time required for assembly is reduced. You can also.

Further, since the four cap main portions 56a are the retaining caps 56 which are connected to each other by the connecting portions 56b, the retaining caps are more secure than when each screw holding portion 47 is covered with one retaining cap. The cap 56 can be easily mounted.

[Fifth Embodiment] Next, a fifth embodiment will be described with reference to FIG. This embodiment is a fourth embodiment.
The temporary fixing structure of the sealing screw is changed. FIG. 14 is a sectional view of the sealing portion. As shown in FIG. 14, the retaining cap 56 according to the fourth embodiment is eliminated, and the screw hole 44a is used as the lower hole 59, and the sealing screw 38 is screwed into the lower hole 59.

According to the temporary fixing structure of the sealing screw 38 described above, the sealing screw 38 can be temporarily fixed and held in the screw holding portion 47 by screwing it into the pilot hole 59 through the screw holding portion 47. In this case, instead of the pilot hole 59, the support protrusion 54 (see FIG. 12C) according to the third embodiment is provided on the inner peripheral surface of the screw hole 44a, and the sealing screw 38 is provided.
It is advisable to reduce the tightening torque.

In the case where the sealing screw 38 is temporarily fixed by screwing, when the cover 13 is temporarily fixed, only the cover 13 does not protrude too far from the lower surface of the sealing fastening portion 44 of the cover 13. It is necessary to prevent the cover 13 and the case 12 from being erroneously fastened when the cover 13 and the case 12 are temporarily fixed after being assembled. In such a case, the positioning management or the torque management of the sealing screw 38 in the vertical direction may be performed. In particular, in the case of automatic assembly, positioning management and torque management can be easily performed.

Embodiment 6 Next, Embodiment 6 will be described with reference to FIG. This form is a sealing screw 38
FIG. FIG. 15A is a perspective view of a sealing screw, and FIG. 15B is a perspective view showing a sealing state of the sealing screw. The sealing screw (indicated by reference numeral 61) of this embodiment is called a shear screw, and as shown in FIG. 15A, a rotating operation member such as a screwdriver is mounted on a head 63 of a shaft portion 62 having a thread. An engagement portion 64 having an engagement hole 64a that engages with the shaft portion, and a constricted portion 65 that is sheared by a predetermined or more tightening force of a rotating operation member such as a driver.

When the tightening force of the rotation operating member is applied to the constricted portion 65 by a predetermined amount or more upon completion of the tightening, the sealing screw 61 causes shearing of the constricted portion 65, as shown in FIG. The engaging portion 64 is separated from the head 63. The engagement portion 64 is eliminated from the head portion 63, so that the sealing screw 38 cannot be loosened.

Seventh Embodiment Next, a seventh embodiment will be described with reference to FIG. This embodiment is the first embodiment.
Of the ROM cover 23 of FIG. Instead of the ROM cover 23, a ROM holding structure shown in a sectional view in FIG. 16 is employed. In the ROM holding structure, a support pillar 67 having a contact surface 67a at the tip thereof, which is in contact with the upper surface of the ROM 18, is provided integrally on the back surface of the cover 13. The support column 67 can prevent the ROM 18 from being pulled out.

Eighth Embodiment Next, an eighth embodiment will be described with reference to FIG. This embodiment is a seventh embodiment.
In this embodiment, the ROM holding structure is changed, and a support member 69 separate from the cover 13 is provided in place of the support column 67. FIG. 17A is a sectional view of an assembled state, and FIG.
FIG. 4 is a perspective view of a support member. The support member 69 is substantially U-shaped, has a contact surface 69a on the lower surface that contacts the upper surface of the ROM 18, and has an engagement protrusion 70 that can be engaged with the heat radiation hole 26 of the cover 13 on the upper end surface 69b. Have. The support member 69 is assembled by engaging the engagement protrusion 70 with the heat radiation hole 26 of the cover 13. In this case, the position of the support member 69 can be appropriately changed within the range where the heat radiating holes 26 exist according to the arrangement of the ROM 18 on the control board 11, so that the cover 13 can be shared.

Ninth Embodiment Next, a ninth embodiment will be described with reference to FIGS. In the ninth embodiment, the cover 13 of the first embodiment is modified. FIG. 18 is a front view showing a control board storage box, and FIG.
9 is an explanatory sectional view. As shown in FIGS. 18 and 19, the cover 13 is formed in a shape that covers the entire mounting surface 11a of the control board 11.

According to the cover 13, the connector 19
, It is possible to prevent unauthorized modification such as input of an unauthorized signal via the connector 19. In addition,
In this case, a fitting structure in which the projecting piece 31 and the fitting recess 32 are fitted over the entire mating surface of the case 12 and the cover 13 is adopted.

The lead wires (not shown) connected to the connector 19 and the like are provided with an opening 73 provided on the control board 11 and a case 12 as shown in the sectional views of FIGS.
Control board storage box 10 through opening 74 provided in
Can be wired inside and outside.

Further, the control board storage box 10 is
As shown in the front view, the protective cover 75 is attached to the back of the game board. Therefore, the lead wire connected to the control board storage box 10 is
It can be wired inside the protective cover 75 through an opening (not shown) also provided on the side. Therefore, the lead wire of the control board storage box 10 can be connected to the accessory of the game board or the wiring from the symbol display without being exposed to the outside. Therefore, it is possible to prevent unauthorized modification such as input of an unauthorized signal via a lead wire.

[Tenth Embodiment] First, the prior art of a control board storage box of a gaming machine according to a tenth embodiment will be described. A driver, a metal plate, a wire, etc., Inserting a gap between the base body and the lid body, and taking into account the problem of unauthorized replacement of the ROM using a tool or the like from the gap, taking into account a number of margins between the base body and the lid body. When the sealing portion (including various sealing members such as screws and pins) is provided, the number of parts increases and the sealing operation becomes troublesome. Therefore, a hinge member is attached to one side between the base member and the lid member, the lid member is connected to be openable and closable about the hinge pin of the hinge member, and a sealing member is disposed at a portion near the free end of the lid member. It is possible to set up. However, manufacturing and assembling the hinge member increases the number of parts and the number of assembling steps. In addition, when the maintenance and inspection of the control board and the replacement of parts are performed in a state where the lid is opened centering on the hinge pin of the hinge member, the opened lid may interfere with the maintenance and inspection of the control board and the parts replacement. May occur.
In the tenth embodiment, in consideration of the above problem, one side between the base body and the lid body can be engaged without a gap by a simple structure, and the number of sealing parts provided can be reduced. It is an object (object) of the present invention to provide a control board storage box for a gaming machine which can perform the above operation. Next, a tenth embodiment will be described with reference to FIGS. FIG. 22 is a front view of the control board storage box. 23 and 24 are sectional views taken along the line AA of FIG. 22. FIG. 23 shows a state in which the cover is closed, and FIG. 24 shows a state in which the cover is slightly opened. FIG.
FIG. 5 shows a cut-away view of an engaging portion of one side of the case and the cover, FIG. 26 shows a cross section thereof, and FIG. Note that, in these figures, the same elements as those in FIG. 1 and the like are denoted by the same reference numerals, and description of the respective elements will be omitted.

In FIGS. 22 to 27, the control board storage box 10a includes a case 12 as a base body, and a cover 13 as a lid which is detachably mounted on one side of the case 12 by detachable opening and closing means 100. It has. As shown in FIGS. 22, 23, and 24, the attaching / detaching opening / closing means 100 includes an engaging hole 120 formed in the case 12 along one side of the case 12 and having an opening 120a inside. A projection 130 is formed corresponding to the hole 120 and extends from one side of the cover 13 toward the engagement hole 120 to be integrally formed. An engaging edge 131 which is removably inserted into the opening 120a of the engaging hole 120 and rises up to a position where it engages with the inner side surface of the engaging hole 120 is formed at the distal end of the projecting portion 130 at a substantially right angle. Has been established. Then, as shown in FIG.
The cover 13 is provided with the engaging hole 120 and the engaging edge 1 on one side.
It is opened and closed with an engaging portion with the fulcrum 31 as a fulcrum. Further, as shown in FIG.
The engagement hole 120 and the engagement edge 131 can be disengaged in a state where the cover 13 is opened to a predetermined opening angle (an opening of approximately 90 in the tenth embodiment) with respect to one side. .

In the tenth embodiment, as shown in FIG. 24, FIG. 25 and FIG. 26, the engagement hole 120 is formed with a side wall upper edge 121 formed on one side of the case 12 and a hook-shaped engaging portion. The joint 122 is formed. The engagement portion 122 is formed integrally with the case 12 at a position above and outside the side wall upper edge portion 121, and is formed integrally with the case 12.
The third protrusion 130 is formed in a hook shape in cross section so as to cover the upper part of the engagement edge 131 at the tip of the protrusion 130 and the three sides of the inner and outer sides. An opening 120a is formed between the upper edge 121 of the side wall and the tip of the engaging portion 122, through which the engaging edge 131 at the tip of the protrusion 130 is inserted and removed. Further, an opening 120a between the upper edge 121 of the side wall and the tip of the engaging portion 122 is formed.
Is formed to have an opening height H substantially the same as the thickness h of the projection 130. The upper edge 121 of the side wall forming the opening 120a and the distal end of the engaging portion 122 are formed in a substantially arcuate or inclined shape with a sharpened distal end in order to facilitate engagement and disengagement of the engaging edge 131. I have. Further, the engaging edge 131 is also formed in an inclined or curved shape in which the thickness is gradually reduced toward the tip.

Further, as shown in FIG. 22, between the case 12 and the cover 13, an engagement hole 120 and an engagement edge 131 are provided.
A sealing group 36 having a plurality of (four in FIG. 22) sealing portions 37 for sealing the case 12 in a closed state with respect to the case 12 at a portion opposite to one side where the sealing portion 36 is formed is individually cuttable. It is arranged. In the tenth embodiment, 2
One of the sealing portion groups 36 is disposed closer to the opposite side of one of the two adjacent sides to the one side of the case 12 and the cover 13 than the one side. . Further, the other seal group 36 is disposed across the corner between the other adjacent side and the opposite side. Note that a sealing portion 37 for sealing the case 12 and the cover 13 in a closed state may be provided only on the opposite side, or may be provided near the opposite side opposite to one side of both adjacent sides. The sealing member for sealing the sealing portion 37 is not limited to the sealing screw 38.

Therefore, in the tenth embodiment, one side of the cover 13 is detachably attached to one side of the case 12 by the detachable opening / closing means 100 so that it can be opened and closed. Between,
The necessity of disposing the sealing portion 37 (including the sealing portion group 36) can be eliminated, and a driver, a metal plate,
It is also possible to prevent a problem that a gap is created by inserting a wire or the like. Further, the engagement hole 1 of the detachable opening / closing means 100
The cover 13 is opened and closed by using the engagement portion between the projection 20 and the engagement edge 131 of the projection 130 as a fulcrum, and the engagement hole 120
And the engaging edge 131 of the protrusion 130 are configured to be disengaged. For this reason, the engagement hole 120 and the engagement edge 131
Not only functions as a hinge, but also the cover 13 can be easily attached to and detached from the case 12 by a very simple operation of engaging and disengaging the engagement hole 120 and the engagement edge 131.

As shown in FIG. 27 (b), the cover 12 is provided with the engaging portion 122 between the engaging hole 120 on one side of the case 12 and the engaging edge 131 at the tip of the protrusion 130 on one side of the cover 13. 13 is smoothly opened and closed. Further, as shown in FIG. 27A, the engagement hole 120 and the engagement edge 131 can be easily and quickly disengaged with the cover 13 opened to an opening of about 90 degrees. Therefore, the cover 13 can be more easily and reliably attached to and detached from the case 12. Also, the upper edge 121 of the side wall of one side of the case 12
Since the engaging hole 120 is formed by the hook-shaped engaging portion 122 provided above and outside the side wall upper edge 121, a dedicated member having the engaging hole 120 There is no need to assemble the part on one side of the case 12, and the number of parts and the number of assembling steps can be reduced, and the cost can be reduced.

Since the hook-shaped engaging portion 122 is formed so as to cover the engaging edge 131 at the tip of the projection 130 of the cover 13, the hook-shaped engaging portion 122 of the engaging hole 120 is formed. And the engaging edge 1 of the tip of the projection 130 of the cover 13
31 can be firmly engaged, and the problem that the engagement is unexpectedly disengaged can be prevented. Case 12
The engaging hole 120 of the cover 13 and the engaging edge 131 at the tip of the protrusion 130 of the cover 13
Is closed, the protrusion 130 on one side of the cover 13 is restrained between the upper edge 121 of the side wall of the case 12 and the tip of the engaging portion 122 having a hook-shaped cross section. Therefore, the cover 13 can be prevented from rattling in the height direction of the opening of the engaging hole 120 of the case 12, and the engaging portion 122 having a hook-shaped cross section and the protrusion 1 of the cover 13 can be prevented.
The problem that the engagement with the engagement edge 131 at the tip of the tip 30 is unexpectedly disengaged can be more reliably prevented.

In Embodiment 10, FIG.
As shown in FIG. 2, the case 12 and the cover 13 are each formed in a horizontally long rectangle that is long in one direction, and a plurality of engagement holes 120 and protrusions 130 are formed on one long side of the case 12 and the cover 13 (see FIG. 2). 22 (two right and left sides). Thereby, the engagement hole 120
And the engaging edge 131 of the projection 130 are prevented from being unexpectedly elastically deformed, and the engagement between the engaging hole 120 and the engaging edge 131 of the projection 130 is strengthened. And Case 1
It is possible to eliminate the necessity of disposing the sealing portion 37 (including the sealing portion group 36) between the long sides of each other between the cover 2 and the cover 13; The problem that a gap is formed due to the gap can be more reliably prevented.

Returning to FIG. 22, the cover 13 is provided with a concave portion 13b in which a part thereof (at least a portion corresponding to a portion over substantially the entire upper surface of the ROM 18) is dented. The recess 13b has a bottom lower surface 13e as shown in FIG.
The gap G2 is formed so as to form a gap G2 between the ROM 18 and the upper surface of the ROM 18. The gap G2 is shorter than the distance at which the ROM 18 can be attached to and detached from the socket 17. for that reason,
The gap G2 need not be provided, and in this case, the bottom lower surface 13e and the upper surface of the ROM 18 come into contact as shown in FIG. In the recess 13b, at least RO
The bottom 13d corresponding to M18 is transparent, and RO
It does not cover the middle of the upper surface of M18. Therefore, ROM1
Characters, symbols, figures, and the like displayed on the sticker 8 itself or on a sticker or the like affixed to the ROM 18 can be reliably recognized. Here, the bottom 13d is not limited to the case where the bottom 13d is formed flat.
A lens surface 13f as shown in FIG. Characters, symbols, figures, and the like displayed on the ROM 18 itself, a sticker, or the like are enlarged by the lens surface 13f, so that the characters are easy to see and can be easily recognized. Note that the cover 13 does not necessarily have to include the recess 13b. For example, as shown in FIG. 23 (c), there is a height of the socket 17, similarly, there is a height of the ROM 18 itself. (A plurality of layers in total). In any of these embodiments, it is sufficient that there is a gap G2 between the lower surface of the cover 13 and the upper surface of the ROM 18 or the clearance G2 is in contact with the lower surface.

Returning to FIG. 22 again, the recess 13b is provided near one side (axis) where the detachable opening / closing means 100 is provided. The reason for this is as follows.
That is, for example, from the state where the cover 13 is closed as shown in FIG. 23, the cover 13 is slightly opened as shown in FIG. At this time, a gap G6 generated between the bottom lower surface 13e and the upper surface of the ROM 18 is significantly smaller than a gap G4 generated at the front end portion of the cover 13 (on the side opposite to the opening / closing means 100). As long as the gap G4 is smaller than the gap G2, R
The OM 18 cannot be attached or detached. Therefore, it is difficult to mount / remove the ROM 18 with the cover 13 slightly opened. Therefore, unauthorized replacement of the ROM 18 can be more reliably prevented. In the recess 13b, it is more preferable to provide a protective wall 13g on the tip side of the cover 13. The protection wall 13g has a bottom 1
It extends from 3d toward the control board 11.
In a state where the cover 13 is slightly opened, even if a foreign object such as a tool or a wire is put into the cover 13 through the gap G4, the protection wall 13 is not removed.
Although the socket 17 can be touched by g, the ROM 18 cannot be touched directly. Therefore, R
It is possible to more reliably prevent the OM 18 from being illegally exchanged. The cover 13 may be provided on the case 12 so as to be openable and closable by a hinge member having a hinge shaft (including a hinge pin).

[Eleventh Embodiment] Next, an eleventh embodiment will be described.
Will be described with reference to FIG. Embodiment 11
Next, a description will be given of a form in which the cover described in Embodiment 10 is modified. Here, FIG. 28 is a cross-sectional view of the control board storage box. FIG. 28
In FIG. 23, the same elements as those in FIG.

The cover 13 shown in FIG. 28 is different from the flattened embodiment 10 in that it is formed in a step shape.
That is, the side wall 13a is provided in the vicinity of the ROM 18, and the protrusion 130 having the engaging edge 131 at the tip is extended from the side wall 13a. At this time, the protrusion 130 is formed at a position where a gap G2 is formed between the lower surface of the cover 13 and the upper surface of the ROM 18. This state is shown in FIG. The gap G2 is the same as the tenth embodiment in that the gap G2 is shorter than the distance at which the ROM 18 can be attached to and detached from the socket 17. Therefore, when there is no gap G2, the lower surface of the protrusion 130 contacts the upper surface of the ROM 18 as shown in FIG. The ROM 18
In order to make it easy to recognize characters, symbols, figures, and the like displayed on the sticker itself, on a sticker, or the like, it is more preferable that at least a portion of the protrusion 130 corresponding to the ROM 18 be formed transparent or provided with a lens surface 13f. . Further, in order to prevent the ROM 18 from being illegally replaced even when the cover 13 is slightly opened, it is more preferable to provide a protective wall 13g on the tip end side of the cover 13.

According to the eleventh embodiment, the ROM 18
The gap G2 between the (semiconductor device) and the cover 13 is
8 is shorter than the distance that can be attached and detached. for that reason,
Even if the ROM 18 is illegally replaced with a foreign object such as a tool or a wire, the ROM 18 cannot be mounted or removed. Therefore, when the control board 11 is covered with the cover 13, it is possible to reliably prevent the ROM 18 from being illegally replaced. By providing such a gap G2, the heat generated in the ROM 18 can be easily released, so that thermal runaway in the control board 11 can be prevented. Further, the cover 13 at a portion corresponding to the ROM 18 is formed in a lens shape (for example, a lens surface 13f shown in FIG. 23A). Therefore, the ROM 18 itself and the ROM 18
Characters, symbols, figures, and the like displayed on a sticker or the like attached to are enlarged. Therefore, characters, symbols, figures, and the like are easy to see.

Further, the recess 13b, which is at least a part of the cover 13, is in contact with a portion extending over substantially the entire upper surface of the ROM 18 (see, for example, FIG. 23A) or is located in the vicinity thereof (see, for example, FIG. 23B). ). In addition, at least the bottom 13d is formed transparent,
There is no partial contact with the upper surface of the OM 18. Therefore, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like attached to the ROM 18 can be reliably recognized. When a sticker is attached to the ROM 18, characters, symbols, figures, and the like can be reliably recognized regardless of the position on the upper surface of the ROM 18. For the type in which the control board 11 is covered with a cover 13 that can be opened and closed with one side as a fulcrum, the ROM 18 is mounted on the control board 11 near one side of the cover 13 as shown in FIG. 24, for example. I do. ROM18
Is located near the fulcrum on one side of the cover 13, so that even if the cover 13 is slightly opened, the gap G6 between the ROM 18 and the cover 13 does not widen so much. Therefore, even if the ROM 18 is illegally replaced with a foreign object such as a tool or a wire,
It is difficult to attach / remove the ROM 18. Therefore, unauthorized replacement of the ROM 18 can be more reliably prevented.

[Other Embodiments] In the control device for a gaming machine described above, the structure, shape, size, material,
The number, arrangement, operating conditions, and the like are not limited to the above embodiment. For example, each of the following embodiments to which the above embodiment is applied may be implemented. (1) In the above embodiments, the present invention is applied to a pachinko machine. Instead of this mode, the present invention can be similarly applied to other game machines (for example, slot machine machines, arrange ball machines, video game machines, etc.). Even in these gaming machines, the gap between the semiconductor device and the cover is
Since the distance is shorter than the distance at which the semiconductor device can be attached and detached, it is possible to reliably prevent the semiconductor device from being illegally replaced. By providing such a gap, heat generated in the semiconductor device can be easily released, so that thermal runaway in the control board can be prevented. (2) In each of the above embodiments, a ROM is used as the semiconductor device.
18 was applied. Instead of this embodiment, other types of semiconductor devices such as a one-chip microcomputer (integrated CPU and ROM), a PC card, an IC card, a cartridge containing a ROM, and the like may be applied. There is a possibility that these semiconductor devices are also exchanged illegally, and this is to surely prevent such illegal acts.

(3) In the seventh embodiment, the cover 13
The support column 67 was integrally provided. This support column 67
As shown in FIG.
Therefore, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like attached to the ROM 18 may be difficult to read. Therefore, by changing the shape of the support column 67, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like can be easily viewed. For example,
As shown in FIG. 29A, a support pillar 67 e is provided integrally with the cover 13 so that the pillar does not cover the upper surface of the ROM 18. At this time, the bottom lower surface 6 of the support pillar 67e
A gap G2 between 7c and the upper surface of the ROM 18 is formed. In addition, the support pillar 67e, that is, the bottom 67d at a portion corresponding to almost the entire upper surface of the ROM 18, is formed at least transparently. This makes it easier to see the characters, symbols, figures, and the like displayed on the ROM 18 itself, on a sticker, or the like.
Note that the gap G2 may not be provided. Further, when the lens surface 67b is formed on the bottom 67d, characters, symbols, figures, and the like displayed on the ROM 18 itself, on a sticker, and the like are enlarged to make them easier to see. On the other hand, as shown in FIG. 29B, a rectangular parallelepiped support column 67f may be formed integrally with the cover 13 instead of the "U" -shaped support column 67e with the opening facing upward. Good. The support column 67f is transparent, and its lower surface (bottom surface)
Are formed so as to correspond to almost the entire upper surface of the ROM 18. At this time, the lower surface of the support pillar 67f and the ROM 18
A gap G2 may be provided with the upper surface of the first member, and may be brought into contact. Even in this case, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like can be easily viewed.

(4) In Embodiment 8, the separate support member 69 is provided on the cover 13. This support member 69 is
As shown in FIG. Therefore, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like attached to the ROM 18 may be difficult to read. Therefore, by changing the shape of the support member 69, characters, symbols, figures, and the like displayed on the ROM 18 itself, on a sticker, or the like are made easier to see. For example, as shown in FIG.
The cover 13 is provided with a support member 69e which does not cover the upper surface of the cover 13. Further, the support member 69e at a portion corresponding to almost the entire upper surface of the ROM 18, that is, the contact surface 69
a is formed at least transparent. In this way, ROM1
Characters, symbols, figures, and the like displayed on the sticker 8 itself or on a sticker or the like can be easily seen. Note that a gap G2 between the contact surface 69a and the upper surface of the ROM 18 may be provided or may be brought into contact. Also,
When the lens surface 69c is formed on the bottom 69d, the ROM 18
Characters, symbols, figures, etc. displayed on the sticker itself, on a sticker, or the like are enlarged to make them easier to see. On the other hand, a rectangular parallelepiped support member 69f shown in FIG. 30C may be provided on the cover 13 instead of the U-shaped support member 69e with the opening facing upward. This state is shown in FIG. The support member 69f is transparent and its lower surface 69g is formed so as to correspond to substantially the entire upper surface of the ROM 18. At this time, the lower surface 69
A gap G2 between g and the upper surface of the ROM 18 may be provided or may be brought into contact. Even in this case, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like can be easily viewed.

(5) In the tenth and eleventh embodiments, the control board storage box 10 having the cover 13
The present invention was applied to a. Instead of this embodiment, the present invention may be applied to a control board storage box having a slidable cover 13. In FIG. 31, the cover 13 is provided so as to be slidable with respect to the case 12 in the vertical direction in the drawing (the direction of arrow C6). In this case, a cover 13h is provided in which a part of the cover 13 is recessed. The concave portion 13h is formed longer in the sliding direction than at least a portion corresponding to a portion covering substantially the entire upper surface of the ROM 18. Also, the recess 13h is
As shown in FIG. 32, a gap G2 between the lower surface and the upper surface of the ROM 18 may be provided or may be brought into contact. further,
When sliding the cover 13 from the closed state, the ROM 18 is mounted on the control board 11 on the side in the sliding direction. In this way, even when the cover 13 is slightly slid, the gap G2 between the lower surface of the recess 13h and the upper surface of the ROM 18 is maintained or is in contact. Therefore, even if the ROM 18 is illegally replaced with a foreign object such as a tool or a wire, the ROM 18 cannot be attached / detached. Therefore, the slidable cover 13
Control box storage box 10b provided with
M18 can be reliably prevented from being illegally exchanged.

(6) In the tenth and eleventh embodiments, the present invention is applied to the control board storage boxes 10a and 10b having the cover 13 which can be opened and closed around one side. Instead of this embodiment, the present invention may be applied to a control board storage box provided with a cover 13 that can be opened and closed with one point as a fulcrum. For example, there is a cover 13 that can be opened and closed using a corner of the case 12 as a fulcrum.
Even in this case, by making the gap G2 between the ROM 18 and the cover 13 shorter than the distance at which the ROM 18 can be attached and detached, it is possible to reliably prevent the ROM 18 from being illegally replaced. RO near the fulcrum
By arranging the M18, the ROM 18 cannot be attached / detached even when the cover 13 is slightly opened. Therefore, unauthorized replacement of the ROM 18 can be more reliably prevented.

[0084]

According to the present invention, it is possible to reliably prevent a semiconductor device from being illegally replaced.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a control board storage box according to a first embodiment.

FIG. 2 is an explanatory sectional view of FIG.

FIG. 3 is a front view of a case.

FIG. 4 is a front view showing a sealing unit group.

FIG. 5 is a cross-sectional view showing a sealing state of a sealing unit.

FIG. 6 is a sectional view showing a temporary fixing state of a sealing screw.

FIG. 7 is an exploded sectional view of a sealing portion.

FIG. 8 is a front view of a seal group showing seal numbers.

FIG. 9 is an explanatory view of a sealing screw.

FIG. 10 is an exploded perspective view showing a fitting structure of a case and a cover.

FIG. 11 is an explanatory diagram of a temporary fixing structure of the sealing screw according to the second embodiment;

FIG. 12 is an explanatory diagram illustrating a temporary fixing structure of a sealing screw according to the third embodiment;

FIG. 13 is an explanatory diagram of a temporary fixing structure of a sealing screw according to a fourth embodiment.

FIG. 14 is an explanatory diagram of a temporary fixing structure of a sealing screw according to a fifth embodiment.

FIG. 15 is an explanatory diagram illustrating a sealing screw according to the sixth embodiment;

FIG. 16 is a sectional view showing a ROM holding structure according to a seventh embodiment;

FIG. 17 is an explanatory diagram illustrating a ROM holding member according to the eighth embodiment;

FIG. 18 is a front view showing a control board storage box according to the ninth embodiment.

FIG. 19 is an explanatory sectional view of FIG. 18;

FIG. 20 is an explanatory sectional view of a wiring portion.

FIG. 21 is a front view showing a state in which the control board storage box is mounted on a protective cover.

FIG. 22 is a front view showing a control board storage box according to the tenth embodiment.

23 is a sectional view taken along line AA of FIG.

24 is a sectional view taken along line AA of FIG. 22.

FIG. 25 is a cutaway perspective view of a portion where a detachable opening / closing means on one side of the case and the cover is provided.

FIG. 26 is a sectional view of the same.

FIG. 27 is an explanatory diagram showing attachment / detachment of the cover to the case and opening / closing of the cover.

FIG. 28 is a sectional view of a control board storage box according to the eleventh embodiment.

FIG. 29 is a sectional view showing a modification of the seventh embodiment.

FIG. 30 is a sectional view showing a modification of the eighth embodiment.

FIG. 31 is a front view showing a control board storage box of a sliding cover.

FIG. 32 is a sectional view taken along line BB of FIG. 31.

[Explanation of symbols]

 10, 100 Control board storage box 11 Control board 12 Case 12a, 13a Side wall 12b Knuckle 13 Cover 13b Recess 13c Leaf 13d Bottom 13e Bottom bottom surface 13f Lens surface 13g Protective wall 17 Socket 18 ROM (semiconductor device) 67 Support column 67a Contact Surface 67b Lens surface 67d Bottom top surface 69 Support member 69a Contact surface 69b Top surface 69c Lens surface 69d Bottom top surface 69e Support member 69f Bottom bottom surface 70 Engagement protrusion

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[Procedure amendment]

[Submission date] April 16, 1999 (1999.4.1
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Control box storage box for gaming machine

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a game machine, and more particularly to a control board storage box for a game machine for preventing a semiconductor device of a control board for controlling the game machine from being illegally replaced.
About the box .

[0002]

2. Description of the Related Art In a gaming machine such as a pachinko machine, a slot machine, etc., various types of control board storage boxes for storing control boards have conventionally been used in order to prevent an unauthorized game by illegally remodeling a control board semiconductor device. It has been devised.
Here, the tamper of the semiconductor device of the control board, Example
For example, there is illegal exchange of ROM . In addition, as the various measures, For example, the base body, between the lid, break
And a sealing member such as a tightening screw to dispose the base
Seals and sometimes stickers
is there. In this way, accidental opening of the lid is prohibited and control
Unauthorized modification of the substrate can be prevented. On the other hand, if the cover is opened and tampering is performed, the sealing member will be damaged.
By visually recognizing that the seal has been damaged or that the seal has been cut, it is possible to easily detect the fact that the wrongdoing has been performed.

[0003]

By the way, the base body and
The lid is sealed with a sealing member, and the lid is
When the body is closed, the sealing member is
Screw the driver, gold on the base, lid and parts that are not
Insert a metal plate, wire, etc. into the gap between the base and lid.
Using a tool or the like from the gap,
There is a problem that the replacement is performed. Such a problem,
This is more likely to occur as the size of the control board storage box increases.
It becomes. In consideration of such problems, the base body and the lid
A number of sealing members are arranged on the periphery of
It is conceivable to take measures to prevent unauthorized exchange of OM. I
However, the four sides of the base body and the lid
Providing a large number of sealing members increases the number of parts.
In addition, the sealing work becomes troublesome. So, base body and lid body
A hinge member is attached to one side between
The lid can be opened and closed around the hinge pin of the member
And a sealing member is disposed at a portion of the lid near the free end.
Can be considered. One side between the base and lid
The number of hinge members and the number of sealing members
You can do it. However, by making the hinge member
Must be attached to one side between base and lid
However, the number of parts and the number of assembling steps also increase. Only
The lid is open around the hinge pin of the hinge member.
Control board maintenance and parts replacement.
When the lid is opened, maintenance and inspection work on the control board and parts
In some cases, a problem may occur as an obstacle to the replacement operation.
In view of the above problems, an object of the present invention is to provide a base and a lid.
A gap is created by a simple structure between the sides of
Can be engaged without the need for
A game machine control board storage box that can be reduced
To provide.

[0004]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
A control board storage box for a gaming machine according to claim 1 of the present invention.
Controls the control board that controls the gaming machine is stored
A board storage box, wherein the control board storage box is provided.
Is a base body and a detachable opening / closing means on one side of the base body.
Therefore, it has a lid attached and detached and openable and closable,
The attachment / detachment opening / closing means includes an engagement hole having an opening,
Projection having an engagement edge removably inserted into the engagement hole
Wherein the engagement is provided between the base body and the lid body.
A part opposite to one side where the hole and the engaging edge are formed
And sealing the base body with the lid closed.
A sealing portion is provided. Therefore, the base body
Lid can be attached and detached and opened and closed by detachable opening and closing means on one side
By attaching to the base body and the lid,
In the meantime, the need to provide a sealing
A screwdriver, metal plate, wire, etc.
It is prevented from being made. Also, the engagement of the detachable opening / closing means
The lid opens and closes with the engaging part between the hole and the engaging edge of the protrusion as a fulcrum
And the engagement hole and the engagement edge of the protrusion are disengaged.
By doing so, the lid is attached to and detached from the base. others
Therefore, if the engagement hole and the engagement edge function as a hinge,
It is important to disengage the engagement hole and the engagement edge.
The lid is attached to and detached from the base by simple operation
be able to.

[0005] A control board for a gaming machine according to claim 2 is provided.
The control box storage box according to claim 1, wherein the storage box is a control board storage box.
An engagement hole having an opening in one side of the base body
Part is formed, while one side of the lid has an engaging edge at the tip.
Having a protrusion having an engagement between the engagement hole and the engagement edge.
The lid is opened and closed with the part as a fulcrum, and the lid
When the body is opened to a predetermined opening angle,
The engagement rim is configured to be disengageable . Therefore,
The engagement hole on one side of the base body and the tip of the protrusion on one side of the lid
By engaging the mating edge, the lid
The body is opened and closed, and the lid is opened to a predetermined opening angle
With this, the engagement hole and the engagement edge are disengaged. For this reason, the engagement hole
The part and the engaging edge not only function as hinges.
Very easy to disengage the engagement hole and the engagement edge
The lid can be attached to and detached from the base
Wear.

According to a third aspect of the present invention, there is provided a control board storage box for a gaming machine.
The box is a control board storage box of the gaming machine according to claim 2.
Wherein the engaging hole is formed on one side of the base body.
The upper edge of the side wall, and located above and outside the upper edge of the side wall
And covers the engaging edge at the tip of the protrusion of the lid.
Hook-shaped engagement that engages with the same engagement edge so as to surround it
Part, the upper edge of the side wall and the cross-sectional hook shape
Between the tip of the lid and the tip of the projection of the lid.
An opening into which the edge is inserted / removed is formed. Therefore,
Upper edge of the side wall on one side of the base body and above the upper edge of the side wall
And the hook-shaped engaging portion located on the outside
Therefore, since the engagement hole is formed, the exclusive
There is no need to attach components for
Costs can be reduced by reducing the number of parts and assembly man-hours.
Wear. Furthermore, the engaging portion having a hook-shaped cross section is provided at the tip of the protrusion of the lid.
Formed so as to cover the engaging edge of the
The hook-shaped engaging part of the section and the engaging edge at the tip of the protrusion of the lid
A device that firmly engages and unexpectedly disengages
Can also be prevented.

According to a fourth aspect of the present invention, there is provided a control board storage box for a gaming machine.
The box is a control board storage box of the gaming machine according to claim 3.
Between the upper edge of the side wall of the base body and the hook-shaped cross section.
The opening between the joint and the tip is the thickness of the protrusion on one side of the lid.
The opening height dimension is substantially the same as the dimension. Accordingly
And the engaging hole of the base body and the engaging edge at the tip of the protrusion of the lid body.
Are engaged and the lid is closed with respect to the base.
The upper edge of the side wall of the base body
The protrusion on one side of the lid is restrained between the front end of the portion and the front end of the cover. this
For this reason, the lid is placed in the height direction of the opening of the engagement hole of the base body.
It is possible to prevent rattling,
The engagement between the engaging part of the shape and the engaging edge at the tip of the projection of the lid is unexpected.
Can be prevented more reliably.
You.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In each embodiment,
An example in which the present invention is applied to a pachinko machine which is one of gaming machines will be described. Here, a control board on which a semiconductor device for controlling the pachinko machine is removably mounted, and a cover covering the control board are installed at predetermined portions of the pachinko machine. Further, a ROM is applied to the semiconductor device. Specifically, an EPROM is used as the ROM, but a mask ROM, an EEPROM,
A semiconductor device, such as a flash memory, which can hold a program even after power is cut off may be used.

[First Embodiment] First, a first embodiment will be described with reference to FIGS. In FIG. 1 showing a partially cutaway front view of the control board storage box and FIG. 2 showing the same sectional view, a control board storage box 10 made of synthetic resin in a pachinko machine has a case 12 for storing a control board 11 and a case 12. And a cover 13 attached to the case 12 to cover the control board 11. The gap between the control board storage box semiconductor device and the cover is shorter than the distance at which the semiconductor device can be attached and detached. Therefore, even if the semiconductor device is illegally replaced with a foreign object such as a tool or a wire, the semiconductor device cannot be attached / detached. Therefore, in a state where the control board is covered with the cover, it is possible to reliably prevent the semiconductor device from being illegally replaced. Reference numeral 10 denotes a back side of the game board, which is detachably connected to a back cover (not shown) (e.g., an accessory protection cover or a back mechanism plate) which is mounted on the back of the game board of the pachinko machine, as is well known. It is installed in. A front view of the case 12 is shown in FIG.

As shown in FIG. 3, the case 12 has a substantially square plate shape, and has a side wall 12a on an outer peripheral portion thereof. The four corners of the case 12 are each provided with a prepared hole 14a.
Are formed respectively. In addition,
The lower left boss 14 in FIG. 3 is set as a reference boss for fixing the cover, and the remaining bosses are set as mounting bosses for fixing the substrate.

On the left and right side surfaces of the case 12, a pair of upper and lower locking pins 15 are projected. The locking pins 15 are respectively engaged with engagement holes (not shown) of left and right set plates 16 (see two-dot chain lines in FIG. 1) arranged on the back cover of the game board. With the engagement between the locking pins 15 and the set plate 16, the control board storage box 10 is supported by the back cover of the game board.

As shown in FIGS. 1 and 2, the case 12 houses the control board 11 with almost no gap. The control board 11 has a mounting surface 11a on the front surface and a solder surface 11b on the back surface. The mounting surface 11a has a ROM 1
8. In addition to various connectors 19, RAM, IC,
Components such as fuses are mounted. A shield plate 20 made of a conductive material such as punched metal is interposed between the case 12 and the control board 11 (see FIG. 2). The shield plate 20 blocks static electricity due to rolling friction of the pachinko ball or the like and prevents generation of noise due to the influence of the static electricity on the electronic components of the control board 11.

The control board 11 is fastened at its four corners by fixing screws 21 formed of tapping screws which are screwed into the prepared holes 14a of the bosses 14 of the case 12. The lower fixing screw 21 in FIG. 1 also serves as a cover fixing reference screw for fixing the cover 13. The cover 13 is formed in a substantially rectangular shape smaller than the case 12 so as to expose the left edge and the lower edge of the control board 11, and has a side wall 13a on the outer periphery (see FIG. 2). . The tip of the side wall 13a forming the left side and the lower side of the cover 13 abuts on the control board 11,
The side wall 13a forming the upper side surface and the right side surface of the cover 13 forms a series of side walls with the side wall 12a of the case 12.

Various connectors 19 are arranged on the mounting surface 11a of the control board 11 which is not covered by the cover 13.
Also, a ROM arranged on the mounting surface 11a of the control board 11
A rectangular box-shaped ROM cover 23 is fitted over 18 and is also covered with the cover 13. The upper surface of the ROM cover 23 is in contact with the cover 13.

The side wall 1 forming the left side surface of the cover 13
A recess 24 is provided in 3a. In the recess 24, a heat radiating member (heat sink) 25 to which a heat source such as a power transistor on the control board 11 that generates a large amount of heat is attached is exposed, and the heat radiating effect is enhanced. The cover 13 is provided with a large number of small-diameter heat radiation holes 26 for releasing heat generated inside the control board storage box 10.

As shown in FIG. 1, a sticker 27 for attaching a model name sticker is provided at the center of the front of the cover 13. At the lower right side of the front of the cover 13, a mounting hole 28 for a probability changing key switch is provided. In the upper right portion of the front of the cover 13, a portion 29 for attaching a serial number sticker is set in a portion located above the ROM 18 (see FIG. 3).

The side walls 12a and 13a forming a series of the case 12 and the cover 13 are alternately fitted when the case 12 and the cover 13 are connected. More specifically, as shown in an exploded perspective view showing a fitting structure of the case 12 and the cover 13 in FIG. The projections 31 and the fitting recesses 32 are formed alternately so as to engage with each other. When the case 12 and the cover 13 are connected to each other, the projections 31 and the fitting recesses 32 are fitted to each other to form a series of side walls 12a and 13a. It is connected in a shape.

As shown in FIG. 1, the cover 13 is provided with a total of four positioning holes 33 in the upper, lower, left and right directions having a diameter larger than the heat radiation holes 26. The positioning hole 33 is formed in a bottomed so-called hollow shape that does not penetrate. This is for the purpose of minimizing the intrusion of foreign matter into the control board storage box 10, and prevents unauthorized modification by wires or the like from the positioning holes 33.

On the other hand, a positioning projection 34 protruding from the lower surface of the case 12 is located on the same axis as the positioning hole 33 (see FIG. 2). For this reason, for example, when a plurality of control board storage boxes 10 are stacked, the positioning protrusions 34 of the upper control board storage box 10 engage with the positioning holes 33 of the lower control board storage box 10, thereby controlling the control board storage box 10. The collapse of the load of the substrate storage box 10 can be prevented. This is effective when the control board storage box 10 is transported, when the pachinko machine is stored in an assembly factory, or the like. Further, if the control of the pachinko machine becomes complicated and the area of the control board 11 must be increased,
It is difficult to accommodate the control board 11 in a limited space on the back side of the pachinko machine, so it is conceivable to use the control board 11 divided into a plurality of pieces. When the same control board storage box 10 is stacked and mounted on a pachinko machine without making a simple control board storage box 10, the positioning function by the engagement between the positioning holes 33 and the positioning projections 34 causes a positional deviation between the two. Can be advantageously prevented.

The positioning projections 34 prevent the control substrate storage box 10 from being collapsed when the control substrate storage boxes 10 are stacked, and the control plate storage box 10 is attached to the back surface (specifically, a protective cover or the like) of the pachinko machine. It also has a function of securely holding the control board storage box 10 when mounted via the interface. That is, usually, the set plate 16
Is flexible, the set plate 16 is bent by an external force from the lateral direction (the left-right direction in FIG. 1) of the control board storage box 10 when the positioning projection 34 is not provided, and the control board storage box 10 is There is a possibility that it will come off from the protective cover and the like. For this reason, a hole that engages with the positioning protrusion 34 is provided on the protective cover or the like, and the positioning protrusion 34 is engaged with the hole of the protective cover when the control board storage box 10 is attached to the protective cover or the like.
It is possible to prevent the control board storage box 10 from falling off due to a lateral external force.

As shown in FIG. 1, an appropriate number of sealing section groups 36 are arranged on the side of the control board storage box 10. In the present embodiment, the sealing portion groups 36 are set at a total of three places: a central upper portion, a lower right portion, and a lower left portion of the control board storage box 10. Each sealing section group 36 includes a plurality (four in the figure) of sealing sections 3 that can be sealed by sealing screws 38.
7 is provided. Since the sealing member groups 36 have the same configuration, the sealing member group 36 at the lower right portion in FIG.
9 will be described in detail with reference to FIG. 9, and the description of the other sealing unit groups 36 will be omitted. 4 is a front view of the sealing group, FIG. 5 is a cross-sectional view showing a sealing state of the sealing section, FIG. 6 is a cross-sectional view showing a temporary fixing state of the sealing screw, FIG.
FIG. 8 is a front view of a sealing section group showing a sealing number, and FIG. 9 is an explanatory view of a sealing screw.

Before explaining the sealing portion 37, a sealing screw 38
Will be described with reference to FIG. In FIG. 9, the sealing screw 38 is a one-way type screw that can be tightened but cannot be loosened, (a) is a plan view of the sealing screw, (b) is a front view, and (c). Is the bottom view, (d)
Is a sectional view of a screw thread. The sealing screw 38 is shown in FIG.
As shown in (c), the shaft portion 39 has a thread 39a on the outer periphery, and a head 40 having an engagement hole 40a on the upper surface for engaging with a rotary operation member such as a cross driver. Head 4
The 0 engagement hole 40a engages in the direction of tightening the rotary tool by a cross driver or the like (see the direction of arrow A in the figure (a)), and conversely, in the loosening direction (arrow B in the figure (a)). (Refer to the direction). As shown in FIGS. 8B and 8C, four grooves 39b on the circumference of the thread 39a of the shaft 39 are provided on the thread 3a.
9a. The thread angle of the thread 39a is vertically asymmetric as shown in FIG.

The sealing screw 38 having the above-described structure enables the rotary tool to be tightened, while the head 4 in the loosening direction of the rotary tool (see the arrow B direction in FIG. 9A).
By reducing the engagement force of 0 and increasing the rotational resistance of the screw thread 39a in the loosening direction, removal from the tightened state becomes impossible. The sealing screw 38 may be, for example, Gizatite, part number GTP3XL (trade name, manufactured by Nitto Seiko Co., Ltd.), or Japanese Utility Model Laid-Open Publication No. 59-47114,
It is also possible to substitute the screw disclosed in JP-A-07-07.

Next, the sealing section 37 will be described. FIG.
As shown in FIG. 5, a sealing boss portion 42 having a bottomed pilot hole 42a is formed on the side wall 12a of the case 12 so as to protrude through an opening portion 42b. The side wall 13 of the cover 13
In a, a sealing fastening portion 44 corresponding to the sealing boss portion 42 of the case 12 is formed so as to protrude via an opening portion 44b. Each of the unsealing portions 42b and 44b is formed thin in a neck shape, and can be cut by a cutting tool such as a nipper or a cutter. Further, the sealing boss portion 42 and the sealing fastening portion 4
On the mating surface with No. 4, there is provided an engagement means comprising a circular engagement projection 46a and an engagement recess 46b which are fitted to each other.

The seal fastening portion 44 is formed in a substantially cylindrical shape, and has a screw hole 44a at the lower end in the figure.
A screw holding portion 47 is provided in a portion above the screw hole 44a in the drawing. In the upper half of the screw holding portion 47, 2
The plurality of slits 48 are formed (see FIG. 4). In FIG. 7, the outer diameter of the head 40 of the sealing screw 38 is d1,
Assuming that the outer diameter of the shaft portion 39 is d2, the inner diameter D1 of the screw holding portion 47, the inner diameter D2 of the screw hole 44a, and the inner diameter D3 of the prepared hole of the sealing boss portion 42 are D1 <d1D2> d2D3 <d2. It is formed to satisfy the relationship. Further, the sealing fastening portion 44 has a height that can accommodate the sealing screw 38.

In the sealing fastening portion 44, by inserting the sealing screw 38 into the screw holding portion 47, the screw holding portion 47 is expanded by the head 40 of the sealing screw 38 so as to open between the slits 48. The head 40 is temporarily fixed by being held by the elasticity that resists the expansion (see FIG. 6). Then, the sealing boss portion 42 of the case 12 and the cover 1
3 and the sealing fastening portion 44 is provided with the engaging convex portion 46a and the engaging concave portion 46.
b are located on the same axis through the fitting (see FIG. 6). Then, at the time of sealing, the sealing is performed by tightening the sealing screw 38 into the prepared hole 42a of the sealing boss portion 42 by a rotating tool (see FIG. 5).

As shown in FIG. 4, the four sealing portions 37 of the sealing portion group 36 are arranged from top to bottom for the first time, the second time,
The sealing portion 37 for the fourth time and the fourth time,
In the opening section 44b of No. 3, “1, 2, 3,.
The seal number 50 of “4” is assigned. Seal number 50 is better represented in FIG. At the completion of the assembly of the control board storage box 10, the sealing portion 37 of the sealing number 50 of "1" of each sealing portion group 36 is sealed by the sealing screw 38, and "2, 3, 4" of each sealing portion group 36 is sealed. The sealing portion 37 of the sealing number 50 is a spare and is not sealed. Note that the sealing number 50 can be attached by printing, engraving, or a resin molding die. In addition, Roman numbers, alphabets, symbols, and the like can be used in place of arithmetic numerals.

As shown in FIG. 4, the opening portion 4 of the cover 13
A fine mesh pattern 51 is formed on the upper surface of 4b by knurling together with the sealing number 50. Trace 51
Can be formed by a resin mold instead of knurling. In addition, the shape of the mesh pattern 51 may be streaks or bevels in addition to the illustrated grids. The mesh pattern 5
1 and the sealing number 50 are also provided on the lower surface of the opening portion 42b of the case 12 in the same manner as described above (not shown).

In the control board storage box 10 of the above-mentioned pachinko machine, the sealing part 37 of the sealing part group 36 with the sealing number 50 of "1" is sealed by the sealing screw 38 for sealingly removing the case 12 and the cover 13. Therefore, unauthorized modification of the control board 11 can be prevented.

In the case of an on-site inspection by the authorities, if the cover 13 is to be removed for a valid reason,
By cutting the unsealing portions 42b and 44b at the sealing number 50 of "1" of the three sealing portion groups 36, the cover 13 can be easily removed while the sealing screw 38 is tightened. Thereby, the mounting surface 11a of the control board 11
Inspection becomes possible. When opening the sealing portion 37, the opening portion 44 b of the cover 13 and the opening portion 4
At least one of 2b may be cut.

The sealing screw 38 temporarily fixed to the screw holding portion 47 of the sealing portion 37 having the sealing number 50 of "2" in the three sealing portion groups 36 is fastened to the sealing boss portion 42 by a rotating tool to seal. Then, the control board storage box 1
0 can be reused. By repeating the above,
Sealing can be performed again in the order of "3" and "4" of the sealing number 50. Therefore, the control board storage box 1 of the present embodiment
In the case of 0, sealing can be performed four times.

According to the control board storage box 10 described above, the sealing screw 38 is temporarily fixed to the sealing portion 37 in advance as shown in FIG. 6 so that the sealing screw 38 is used immediately for sealing. Can be. Therefore, it is possible to save the trouble of preparing the sealing screw 38 for sealing and to prevent the sealing screw 38 from being lost.

Since the sealing screw 38 is temporarily fixed and held by the elasticity of the screw holding portion 47, the temporary fixing operation of the sealing screw 38 can be performed more easily than the temporary fixing and holding by screwing, and the sealing screw 38 is inserted. Even if it is dropped, it can be easily pushed back, so that the position management of the temporary fixing of the sealing screw 38 can be easily performed.

Further, when the slit 48 of the screw holding portion 47 is cut halfway and the head 40 of the sealing screw 38 is engaged with the slit 48, tightening is performed with little resistance, and the final stage of tightening ( In FIG. 5), the outer diameter is smaller than that of the head 40, so that it is tightened with a large torque. Therefore, even if the tip of a rotary tool such as a screwdriver is glued to the sealing screw 38 with an adhesive or the like, and the sealing screw 38 is cleverly loosened, a sufficiently larger resistance than the adhesive force can be secured. The loosening of the screw 38 can be reliably prevented.

In the screw holding portion 47, the cover 13
When the sealing screw 38 is temporarily fixed in this state, even if the sealing screw 38 is inserted too deeply and the tip end of the sealing screw 38 protrudes from the lower surface of the sealing fastening portion 44, the cover 13 in the subsequent process is removed. At the time of attachment to the case 12, the tip of the sealing screw 38 comes into contact with the upper end of the prepared hole 42a of the sealing boss portion 42 of the case 12, and the sealing screw 38 is pushed back upward. do not do. Even when the sealing screw 38 is temporarily fixed after the cover 13 and the case 12 are assembled, the sealing screw 38 is lightly pressed from above.
Of the sealing boss portion 42 of the case 12 comes into contact with the upper end of the prepared hole 42a of the sealing boss portion 42, so that the sealing screw 38 can be temporarily temporarily fixed by hand.

Further, the sealing screw 38 may be temporarily fixed to all the screw holding portions 47 in a state where only the cover 13 is provided in the manufacturing process, or the screw holding portion 47 may be provided after the cover 13 and the case 12 are combined. May be temporarily fixed.

Further, since the sealing order of the sealing portion 37 is clearly displayed by the sealing number 50, the sealing order can be easily managed by a hall manager or the like, and an unauthorized remodeling operation can be easily found. .

For the purpose of unauthorized modification, the opening portions 42b, 44
When b is cut, the mesh pattern 5
1 is damaged, and it is technically difficult to repair the damaged mesh pattern 51. Therefore, it is possible to easily detect an illegal remodeling act from the damage state. Opening portions 42b and 44b
Since the seal number 50 is provided together with the mesh pattern 51, it is easy to detect the illegal remodeling even if the seal number 50 cannot be read by opening.

The RO in the control board storage box 10
M18 is surrounded by a ROM cover 23 as shown in FIG. 2, and the upper surface of the ROM cover 23 is in contact with the cover 13.
Can be prevented from being illegally modified. The ROM cover 23 may have any shape as long as there is no gap between the control board 11 and the cover 13.
For example, in the case of the above-described embodiment, it can be easily attached by fitting the ROM 18. When there are few circuit elements and wires on the control board 11 and there is ample space around the ROM 18, the ROM cover 23 can be formed in a cylindrical shape or an elliptical cylindrical shape.

Further, since a series of side walls 12a, 13a are formed by fitting the projecting pieces 31 of the case 12 and the cover 13 with the fitting recesses 32, the side walls 12a, 13a are subjected to an external force. But it is hard to be distorted. For this reason, the side walls 12a and 13a are pressed down,
Even if an attempt is made to create a gap between the case 3 and the case 12, there is no gap, so that an unauthorized remodeling attempt to insert a foreign substance such as a wire through the gap can be prevented.

The upper end position of the part (left part in FIG. 2) of the side wall 12a of the case 12 that does not abut against the side wall 13a of the cover 13 is larger than the contact position between the control board 11 and the side wall 13a. Since it is located at a high position, it is difficult to insert a wire or other foreign matter into the control board storage box 10 from between the side wall 13a of the cover 13 and the control board 11, which is also effective in preventing unauthorized modification.

Second Embodiment Next, a second embodiment will be described with reference to FIG. Since the second embodiment is a modification of the first embodiment, the modified portion will be described in detail, and the other overlapping description will be omitted.
In the third and subsequent embodiments, the same description will not be repeated.

In this embodiment, the temporary fixing structure of the sealing screw 38 of the first embodiment is modified. 11A is a plan view of a screw holding portion, and FIG. 11B is a cross-sectional view of a sealing portion. As shown in FIG. 11, four slits 48 of the screw holding portion 47 are provided in the circumferential direction. By increasing the number of slits 48 of the screw holding portion 47 in this manner, the elastic force of the screw holding portion 47 can be reduced, and the sealing screw 38 can be inserted into the screw holding portion 47 lightly. The number of the slits 48 of the screw holding portion 47 is appropriately selected and is not limited.

[Third Embodiment] Next, a third embodiment will be described with reference to FIG. In the present embodiment, the temporary fixing structure of the sealing screw 38 of the second embodiment is modified. In FIG. 12, (a) is a plan view of the screw holding portion,
(B) is a sectional view of the sealing portion, and (c) is a plan sectional view of the screw hole portion. As shown in FIGS. 12A and 12B, an appropriate number (four are shown in the figure) of retaining protrusions 53 projecting inward from the upper end of the screw holding portion 47. Further, as shown in FIG. 12C, the inner peripheral surface of the screw hole 44a has
An appropriate number (three are shown in the figure) of support protrusions 54 are formed.

As shown in FIG. 12 (b), the relationship among the inner diameter D1 of the screw holding portion 47, the inner diameter D4 of the opening of the retaining projection 53, and the inner diameter D5 of the opening of the support projection 54 is D1 ≧ d1. It is formed so as to satisfy the dimensional relationship of D4 <d1D5 <d2. Note that d1 is the outer diameter of the head 40 of the sealing screw 38, and d2 is the outer diameter of the shaft 39 (see FIG. 7).

In the screw holding portion 47, when the sealing screw 38 is inserted into the screw holding portion 47, the sealing screw 38
When the screw retaining portion 47 is expanded by the stopper projection 53 of the screw retaining portion 47 being hit by the head portion 40 and the sealing screw 38 is stored in the screw retaining portion 47, the screw retaining portion 47 is restored to the original state. Then, the sealing screw 38 is temporarily held in a state where it is prevented from coming off. Further, the stored sealing screw 38 is prevented from further descending by the support protrusion 54 of the screw hole 44a. When the sealing screw 38 is tightened, the support protrusion 54 is crushed by the thread 39a of the sealing screw 38.

According to the temporary fixing structure of the sealing screw 38 described above, the sealing screw 38 is temporarily held by being stored in the screw holding portion 47 in a retaining state. 2), no stress is applied to the screw holding portion 47 during the holding of the sealing screw 38, so that the holding force of the sealing screw 38 does not decrease.
The temporary fixing state can be continued for a long time.

Further, by providing the support projection 54 for preventing the sealing screw 38 from descending in the screw hole 44a, an increase in the tightening torque of the sealing screw 38 at the time of sealing can be suppressed. For example, the inner diameter D2 of the screw hole 44a and the sealing screw 3
By setting the outer diameter d of the shaft portion 39 of D8 to D2 <d2, it is possible to prevent the sealing screw 38 from descending. However, the screwing torque of the sealing screw 38 increases, but D2> d2. By providing the support protrusion 54 partially on the inner peripheral surface of the screw hole 44a, an increase in the tightening torque is suppressed.

When the support projection 54 is not provided with the inner diameter D2 of the screw hole 44a and the outer diameter d2 of the shaft portion 39 of the sealing screw 38 satisfying D2> d2, sealing is performed with the cover 13 alone. When the screw 38 is inserted, the tip of the shaft 39 of the sealing screw 38 hangs from the screw hole 44a. In this case, when the cover 13 and the case 12 are combined, the tip of the sealing screw 38 comes into contact with the upper end of the prepared hole 42a of the sealing boss 42, and the sealing screw 38 is held in a raised state. Also, if the sealing screw 38 is inserted into the screw holding portion 47 after the cover 13 and the case 12 are combined, the tip of the sealing screw 38 hits the upper end of the prepared hole 42a of the sealing boss portion 42 and is held in the same manner as described above. Will be.

Fourth Embodiment Next, a fourth embodiment will be described with reference to FIG. This embodiment is a third embodiment.
The temporary fixing structure of the sealing screw 38 is modified. In FIG. 13, (a) is a sectional view of the sealing portion, (b)
FIG. 4 is a perspective view of a retaining cap. As shown in FIG. 13, the retaining projection 53 of the screw retaining portion 47 in the third embodiment is eliminated, and a retaining cap 56 that covers the upper end of the screw retaining portion 47 is provided instead. The retaining cap 56 has four cap main portions 56a connected to each other by a connecting portion 56b so as to cover the screw holding portions 47 of all the sealing portions 37 of the sealing portion group 36. Each cap main portion 56a is provided with a head 40 of a sealing screw 38.
Has a retaining hole 57 smaller than the outer diameter d1 (see FIG. 7). The retaining hole 57 has a diameter that does not hinder insertion of the rotating tool at least. The retaining cap 56 is formed of a soft resin material such as a polypropylene resin, and is formed so that the cap main portion 56a can be fitted to the screw holding portion 47 with its deformation. In this case, the slit 48 of the screw holding portion 47 is unnecessary.

According to the temporary fixing structure of the sealing screw 38 described above, the cap main part 56a of the retaining cap 56 is attached to each screw holding part 47 of the sealing part group 36, and the sealing screw 38 is pulled out to the screw holding part 47. By storing in the stopped state, it can be temporarily held.

It is also possible to insert the sealing screw 38 into the screw holding portion 47 one by one. However, as shown in FIG. 13A, the edge of the retaining hole 57 of the cap main portion 56a on the retaining side is secured. When the adhesive 58 is applied to the control board storage box 10, the retaining cap 56
The head 40 of the sealing screw 38 can be temporarily attached via the adhesive 58. Then, in the final step of assembling the control board storage box 10, if the sealing screw 38 is inserted into the screw holding portion 47 together with the attachment of the retaining cap 56 to the screw holding portion 47, the lead time required for assembly is reduced. You can also.

Further, since the four cap main portions 56a are the retaining caps 56 which are connected to each other by the connecting portions 56b, the retaining caps are more secure than when each screw holding portion 47 is covered with one retaining cap. The cap 56 can be easily mounted.

[Fifth Embodiment] Next, a fifth embodiment will be described with reference to FIG. This embodiment is a fourth embodiment.
The temporary fixing structure of the sealing screw is changed. FIG. 14 is a sectional view of the sealing portion. As shown in FIG. 14, the retaining cap 56 according to the fourth embodiment is eliminated, and the screw hole 44a is used as the lower hole 59, and the sealing screw 38 is screwed into the lower hole 59.

According to the temporary fixing structure of the sealing screw 38 described above, the sealing screw 38 can be temporarily fixed and held in the screw holding portion 47 by screwing it into the pilot hole 59 through the screw holding portion 47. In this case, instead of the pilot hole 59, the support protrusion 54 (see FIG. 12C) according to the third embodiment is provided on the inner peripheral surface of the screw hole 44a, and the sealing screw 38 is provided.
It is advisable to reduce the tightening torque.

In the case where the sealing screw 38 is temporarily fixed by screwing, when the cover 13 is temporarily fixed, only the cover 13 does not protrude too far from the lower surface of the sealing fastening portion 44 of the cover 13. It is necessary to prevent the cover 13 and the case 12 from being erroneously fastened when the cover 13 and the case 12 are temporarily fixed after being assembled. In such a case, the positioning management or the torque management of the sealing screw 38 in the vertical direction may be performed. In particular, in the case of automatic assembly, positioning management and torque management can be easily performed.

Embodiment 6 Next, Embodiment 6 will be described with reference to FIG. This form is a sealing screw 38
FIG. FIG. 15A is a perspective view of a sealing screw, and FIG. 15B is a perspective view showing a sealing state of the sealing screw. The sealing screw (indicated by reference numeral 61) of this embodiment is called a shear screw, and as shown in FIG. 15A, a rotating operation member such as a screwdriver is mounted on a head 63 of a shaft portion 62 having a thread. An engagement portion 64 having an engagement hole 64a that engages with the shaft portion, and a constricted portion 65 that is sheared by a predetermined or more tightening force of a rotating operation member such as a driver.

When the tightening force of the rotation operating member is applied to the constricted portion 65 by a predetermined amount or more upon completion of the tightening, the sealing screw 61 causes shearing of the constricted portion 65, as shown in FIG. The engaging portion 64 is separated from the head 63. The engagement portion 64 is eliminated from the head portion 63, so that the sealing screw 38 cannot be loosened.

Seventh Embodiment Next, a seventh embodiment will be described with reference to FIG. This embodiment is the first embodiment.
Of the ROM cover 23 of FIG. Instead of the ROM cover 23, a ROM holding structure shown in a sectional view in FIG. 16 is employed. In the ROM holding structure, a support pillar 67 having a contact surface 67a at the tip thereof, which is in contact with the upper surface of the ROM 18, is provided integrally on the back surface of the cover 13. The support column 67 can prevent the ROM 18 from being pulled out.

Eighth Embodiment Next, an eighth embodiment will be described with reference to FIG. This embodiment is a seventh embodiment.
In this embodiment, the ROM holding structure is changed, and a support member 69 separate from the cover 13 is provided in place of the support column 67. FIG. 17A is a sectional view of an assembled state, and FIG.
FIG. 4 is a perspective view of a support member. The support member 69 is substantially U-shaped, has a contact surface 69a on the lower surface that contacts the upper surface of the ROM 18, and has an engagement protrusion 70 that can be engaged with the heat radiation hole 26 of the cover 13 on the upper end surface 69b. Have. The support member 69 is assembled by engaging the engagement protrusion 70 with the heat radiation hole 26 of the cover 13. In this case, the position of the support member 69 can be appropriately changed within the range where the heat radiating holes 26 exist according to the arrangement of the ROM 18 on the control board 11, so that the cover 13 can be shared.

Ninth Embodiment Next, a ninth embodiment will be described with reference to FIGS. In the ninth embodiment, the cover 13 of the first embodiment is modified. FIG. 18 is a front view showing a control board storage box, and FIG.
9 is an explanatory sectional view. As shown in FIGS. 18 and 19, the cover 13 is formed in a shape that covers the entire mounting surface 11a of the control board 11.

According to the cover 13, the connector 19
, It is possible to prevent unauthorized modification such as input of an unauthorized signal via the connector 19. In addition,
In this case, a fitting structure in which the projecting piece 31 and the fitting recess 32 are fitted over the entire mating surface of the case 12 and the cover 13 is adopted.

The lead wires (not shown) connected to the connector 19 and the like are provided with an opening 73 provided on the control board 11 and a case 12 as shown in the sectional views of FIGS.
Control board storage box 10 through opening 74 provided in
Can be wired inside and outside.

Further, the control board storage box 10 is
As shown in the front view, the protective cover 75 is attached to the back of the game board. Therefore, the lead wire connected to the control board storage box 10 is
It can be wired inside the protective cover 75 through an opening (not shown) also provided on the side. Therefore, the lead wire of the control board storage box 10 can be connected to the accessory of the game board or the wiring from the symbol display without being exposed to the outside. Therefore, it is possible to prevent unauthorized modification such as input of an unauthorized signal via a lead wire.

[Embodiment 10] Next, Embodiment 10
Will be described with reference to FIGS. FIG. 22 is a front view of the control board storage box. FIG. 23, FIG.
4 is a sectional view taken along the line AA in FIG. 22, FIG. 23 shows a state in which the cover is closed, and FIG. 24 shows a state in which the cover is slightly opened. FIG. 25 is a cutaway view of an engaging portion of one side of the case and the cover, FIG. 26 is a cross-sectional view thereof, and FIG. Note that, in these figures, the same elements as those in FIG. 1 and the like are denoted by the same reference numerals, and description of the respective elements will be omitted.

In FIGS. 22 to 27, the control board storage box 10a includes a case 12 as a base body, and a cover 13 as a lid which is detachably mounted on one side of the case 12 by detachable opening and closing means 100. It has. As shown in FIGS. 22, 23, and 24, the attaching / detaching opening / closing means 100 includes an engaging hole 120 formed in the case 12 along one side of the case 12 and having an opening 120a inside. A projection 130 is formed corresponding to the hole 120 and extends from one side of the cover 13 toward the engagement hole 120 to be integrally formed. An engaging edge 131 which is removably inserted into the opening 120a of the engaging hole 120 and rises up to a position where it engages with the inner side surface of the engaging hole 120 is formed at the distal end of the projecting portion 130 at a substantially right angle. Has been established. Then, as shown in FIG.
The cover 13 is provided with the engaging hole 120 and the engaging edge 1 on one side.
It is opened and closed with an engaging portion with the fulcrum 31 as a fulcrum. Further, as shown in FIG.
The engagement hole 120 and the engagement edge 131 can be disengaged in a state where the cover 13 is opened to a predetermined opening angle (an opening of approximately 90 in the tenth embodiment) with respect to one side. .

In the tenth embodiment, as shown in FIG. 24, FIG. 25 and FIG. 26, the engagement hole 120 is formed with a side wall upper edge 121 formed on one side of the case 12 and a hook-shaped engaging portion. The joint 122 is formed. The engagement portion 122 is formed integrally with the case 12 at a position above and outside the side wall upper edge portion 121, and is formed integrally with the case 12.
The third protrusion 130 is formed in a hook shape in cross section so as to cover the upper part of the engagement edge 131 at the tip of the protrusion 130 and the three sides of the inner and outer sides. An opening 120a is formed between the upper edge 121 of the side wall and the tip of the engaging portion 122, through which the engaging edge 131 at the tip of the protrusion 130 is inserted and removed. Further, an opening 120a between the upper edge 121 of the side wall and the tip of the engaging portion 122 is formed.
Is formed to have an opening height H substantially the same as the thickness h of the projection 130. The upper edge 121 of the side wall forming the opening 120a and the distal end of the engaging portion 122 are formed in a substantially arcuate or inclined shape with a sharpened distal end in order to facilitate engagement and disengagement of the engaging edge 131. I have. Further, the engaging edge 131 is also formed in an inclined or curved shape in which the thickness is gradually reduced toward the tip.

Further, as shown in FIG. 22, between the case 12 and the cover 13, an engagement hole 120 and an engagement edge 131 are provided.
A sealing group 36 having a plurality of (four in FIG. 22) sealing portions 37 for sealing the case 12 in a closed state with respect to the case 12 at a portion opposite to one side where the sealing portion 36 is formed is individually cuttable. It is arranged. In the tenth embodiment, 2
One of the sealing portion groups 36 is disposed closer to the opposite side of one of the two adjacent sides to the one side of the case 12 and the cover 13 than the one side. . Further, the other seal group 36 is disposed across the corner between the other adjacent side and the opposite side. Note that a sealing portion 37 for sealing the case 12 and the cover 13 in a closed state may be provided only on the opposite side, or may be provided near the opposite side opposite to one side of both adjacent sides. The sealing member for sealing the sealing portion 37 is not limited to the sealing screw 38.

Therefore, in the tenth embodiment, one side of the cover 13 is detachably attached to one side of the case 12 by the detachable opening / closing means 100 so that it can be opened and closed. Between,
The necessity of disposing the sealing portion 37 (including the sealing portion group 36) can be eliminated, and a driver, a metal plate,
It is also possible to prevent a problem that a gap is created by inserting a wire or the like. Further, the engagement hole 1 of the detachable opening / closing means 100
The cover 13 is opened and closed by using the engagement portion between the projection 20 and the engagement edge 131 of the projection 130 as a fulcrum, and the engagement hole 120
And the engaging edge 131 of the protrusion 130 are configured to be disengaged. For this reason, the engagement hole 120 and the engagement edge 131
Not only functions as a hinge, but also the cover 13 can be easily attached to and detached from the case 12 by a very simple operation of engaging and disengaging the engagement hole 120 and the engagement edge 131.

As shown in FIG. 27 (b), the cover 12 is provided with the engaging portion 122 between the engaging hole 120 on one side of the case 12 and the engaging edge 131 at the tip of the protrusion 130 on one side of the cover 13. 13 is smoothly opened and closed. Further, as shown in FIG. 27A, the engagement hole 120 and the engagement edge 131 can be easily and quickly disengaged with the cover 13 opened to an opening of about 90 degrees. Therefore, the cover 13 can be more easily and reliably attached to and detached from the case 12. Also, the upper edge 121 of the side wall of one side of the case 12
Since the engaging hole 120 is formed by the hook-shaped engaging portion 122 provided above and outside the side wall upper edge 121, a dedicated member having the engaging hole 120 There is no need to assemble the part on one side of the case 12, and the number of parts and the number of assembling steps can be reduced, and the cost can be reduced.

Since the hook-shaped engaging portion 122 is formed so as to cover the engaging edge 131 at the tip of the projection 130 of the cover 13, the hook-shaped engaging portion 122 of the engaging hole 120 is formed. And the engaging edge 1 of the tip of the projection 130 of the cover 13
31 can be firmly engaged, and the problem that the engagement is unexpectedly disengaged can be prevented. Case 12
The engaging hole 120 of the cover 13 and the engaging edge 131 at the tip of the protrusion 130 of the cover 13
Is closed, the protrusion 130 on one side of the cover 13 is restrained between the upper edge 121 of the side wall of the case 12 and the tip of the engaging portion 122 having a hook-shaped cross section. Therefore, the cover 13 can be prevented from rattling in the height direction of the opening of the engaging hole 120 of the case 12, and the engaging portion 122 having a hook-shaped cross section and the protrusion 1 of the cover 13 can be prevented.
The problem that the engagement with the engagement edge 131 at the tip of the tip 30 is unexpectedly disengaged can be more reliably prevented.

In Embodiment 10, FIG.
As shown in FIG. 2, the case 12 and the cover 13 are each formed in a horizontally long rectangle that is long in one direction, and a plurality of engagement holes 120 and protrusions 130 are formed on one long side of the case 12 and the cover 13 (see FIG. 2). 22 (two right and left sides). Thereby, the engagement hole 120
And the engaging edge 131 of the projection 130 are prevented from being unexpectedly elastically deformed, and the engagement between the engaging hole 120 and the engaging edge 131 of the projection 130 is strengthened. And Case 1
It is possible to eliminate the necessity of disposing the sealing portion 37 (including the sealing portion group 36) between the long sides of each other between the cover 2 and the cover 13; The problem that a gap is formed due to the gap can be more reliably prevented.

Returning to FIG. 22, the cover 13 is provided with a concave portion 13b in which a part thereof (at least a portion corresponding to a portion over substantially the entire upper surface of the ROM 18) is dented. The recess 13b has a bottom lower surface 13e as shown in FIG.
The gap G2 is formed so as to form a gap G2 between the ROM 18 and the upper surface of the ROM 18. The gap G2 is shorter than the distance at which the ROM 18 can be attached to and detached from the socket 17. for that reason,
The gap G2 need not be provided, and in this case, the bottom lower surface 13e and the upper surface of the ROM 18 come into contact as shown in FIG. In the recess 13b, at least RO
The bottom 13d corresponding to M18 is transparent, and RO
It does not cover the middle of the upper surface of M18. Therefore, ROM1
Characters, symbols, figures, and the like displayed on the sticker 8 itself or on a sticker or the like affixed to the ROM 18 can be reliably recognized. Here, the bottom 13d is not limited to the case where the bottom 13d is formed flat.
A lens surface 13f as shown in FIG. Characters, symbols, figures, and the like displayed on the ROM 18 itself, a sticker, or the like are enlarged by the lens surface 13f, so that the characters are easy to see and can be easily recognized. Note that the cover 13 does not necessarily have to include the recess 13b. For example, as shown in FIG. 23 (c), there is a height of the socket 17, similarly, there is a height of the ROM 18 itself. (A plurality of layers in total). In any of these embodiments, it is sufficient that there is a gap G2 between the lower surface of the cover 13 and the upper surface of the ROM 18 or the clearance G2 is in contact with the lower surface.

Returning to FIG. 22, the recess 13b is provided near one side where the detachable opening / closing means 100 is provided. The reason for this is as follows. That is, for example, from the state where the cover 13 is closed as shown in FIG. 23, the cover 13 is slightly opened as shown in FIG. At this time, a gap G6 generated between the bottom lower surface 13e and the upper surface of the ROM 18 is significantly smaller than a gap G4 generated at the front end portion of the cover 13 (on the side opposite to the opening / closing means 100). As long as the gap G4 is smaller than the gap G2, the ROM
18 cannot be attached or detached. Therefore, the cover 13
It is difficult to attach / remove the ROM 18 when the is slightly opened. Therefore, unauthorized replacement of the ROM 18 can be more reliably prevented. In the recess 13b, the protective wall 13
It is more preferable to provide g. The protection wall 13g extends from the bottom 13d toward the control board 11. In a state where the cover 13 is slightly opened, even if a foreign object such as a tool or a wire is put into the cover 13 through the gap G4, the socket 17 can be touched by the protective wall 13g,
You cannot touch M18. Therefore, ROM1
8 can be more reliably prevented from being illegally exchanged. The cover 13 may be provided on the case 12 so as to be openable and closable by a hinge member having a hinge shaft (including a hinge pin).

[Eleventh Embodiment] Next, an eleventh embodiment will be described.
Will be described with reference to FIG. Embodiment 11
Next, a description will be given of a form in which the cover described in Embodiment 10 is modified. Here, FIG. 28 is a cross-sectional view of the control board storage box. FIG. 28
In FIG. 23, the same elements as those in FIG.

The cover 13 shown in FIG. 28 is different from the flattened embodiment 10 in that it is formed in a step shape.
That is, the side wall 13a is provided in the vicinity of the ROM 18, and the protrusion 130 having the engaging edge 131 at the tip is extended from the side wall 13a. At this time, the protrusion 130 is formed at a position where a gap G2 is formed between the lower surface of the cover 13 and the upper surface of the ROM 18. This state is shown in FIG. The gap G2 is the same as the tenth embodiment in that the gap G2 is shorter than the distance at which the ROM 18 can be attached to and detached from the socket 17. Therefore, when there is no gap G2, the lower surface of the protrusion 130 contacts the upper surface of the ROM 18 as shown in FIG. The ROM 18
In order to make it easy to recognize characters, symbols, figures, and the like displayed on the sticker itself, on a sticker, or the like, it is more preferable that at least a portion of the protrusion 130 corresponding to the ROM 18 be formed transparent or provided with a lens surface 13f. . Further, in order to prevent the ROM 18 from being illegally replaced even when the cover 13 is slightly opened, it is more preferable to provide a protective wall 13g on the tip end side of the cover 13.

According to the eleventh embodiment, the ROM 18
The gap G2 between the (semiconductor device) and the cover 13 is
8 is shorter than the distance that can be attached and detached. for that reason,
Even if the ROM 18 is illegally replaced with a foreign object such as a tool or a wire, the ROM 18 cannot be mounted or removed. Therefore, when the control board 11 is covered with the cover 13, it is possible to reliably prevent the ROM 18 from being illegally replaced. By providing such a gap G2, the heat generated in the ROM 18 can be easily released, so that thermal runaway in the control board 11 can be prevented. Further, the cover 13 at a portion corresponding to the ROM 18 is formed in a lens shape (for example, a lens surface 13f shown in FIG. 23A). Therefore, the ROM 18 itself and the ROM 18
Characters, symbols, figures, and the like displayed on a sticker or the like attached to are enlarged. Therefore, characters, symbols, figures, and the like are easy to see.

Further, the recess 13b, which is at least a part of the cover 13, is in contact with a portion extending over substantially the entire upper surface of the ROM 18 (see, for example, FIG. 23A) or is located in the vicinity thereof (see, for example, FIG. 23B). ). In addition, at least the bottom 13d is formed transparent,
There is no partial contact with the upper surface of the OM 18. Therefore, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like attached to the ROM 18 can be reliably recognized. When a sticker is attached to the ROM 18, characters, symbols, figures, and the like can be reliably recognized regardless of the position on the upper surface of the ROM 18. For the type in which the control board 11 is covered with a cover 13 that can be opened and closed with one side as a fulcrum, the ROM 18 is mounted on the control board 11 near one side of the cover 13 as shown in FIG. 24, for example. I do. ROM18
Is located near the fulcrum on one side of the cover 13, so that even if the cover 13 is slightly opened, the gap G6 between the ROM 18 and the cover 13 does not widen so much. Therefore, even if the ROM 18 is illegally replaced with a foreign object such as a tool or a wire,
It is difficult to attach / remove the ROM 18. Therefore, unauthorized replacement of the ROM 18 can be more reliably prevented.

[Other Embodiments] In the control device for a gaming machine described above, the structure, shape, size, material,
The number, arrangement, operating conditions, and the like are not limited to the above embodiment. For example, each of the following embodiments to which the above embodiment is applied may be implemented. (1) In the above embodiments, the present invention is applied to a pachinko machine. Instead of this mode, the present invention can be similarly applied to other game machines (for example, slot machine machines, arrange ball machines, video game machines, etc.). Even in these gaming machines, the gap between the semiconductor device and the cover is
Since the distance is shorter than the distance at which the semiconductor device can be attached and detached, it is possible to reliably prevent the semiconductor device from being illegally replaced. By providing such a gap, heat generated in the semiconductor device can be easily released, so that thermal runaway in the control board can be prevented. (2) In each of the above embodiments, a ROM is used as the semiconductor device.
18 was applied. Instead of this embodiment, other types of semiconductor devices such as a one-chip microcomputer (integrated CPU and ROM), a PC card, an IC card, a cartridge containing a ROM, and the like may be applied. There is a possibility that these semiconductor devices are also exchanged illegally, and this is to surely prevent such illegal acts.

(3) In the seventh embodiment, the cover 13
The support column 67 was integrally provided. This support column 67
As shown in FIG.
Therefore, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like attached to the ROM 18 may be difficult to read. Therefore, by changing the shape of the support column 67, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like can be easily viewed. For example,
As shown in FIG. 29A, a support pillar 67 e is provided integrally with the cover 13 so that the pillar does not cover the upper surface of the ROM 18. At this time, the bottom lower surface 6 of the support pillar 67e
A gap G2 between 7c and the upper surface of the ROM 18 is formed. In addition, the support pillar 67e, that is, the bottom 67d at a portion corresponding to almost the entire upper surface of the ROM 18, is formed at least transparently. This makes it easier to see the characters, symbols, figures, and the like displayed on the ROM 18 itself, on a sticker, or the like.
Note that the gap G2 may not be provided. Further, when the lens surface 67b is formed on the bottom 67d, characters, symbols, figures, and the like displayed on the ROM 18 itself, on a sticker, and the like are enlarged to make them easier to see. On the other hand, as shown in FIG. 29B, a rectangular parallelepiped support column 67f may be formed integrally with the cover 13 instead of the "U" -shaped support column 67e with the opening facing upward. Good. The support column 67f is transparent, and its lower surface (bottom surface)
Are formed so as to correspond to almost the entire upper surface of the ROM 18. At this time, the lower surface of the support pillar 67f and the ROM 18
A gap G2 may be provided with the upper surface of the first member, and may be brought into contact. Even in this case, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like can be easily viewed.

(4) In Embodiment 8, the separate support member 69 is provided on the cover 13. This support member 69 is
As shown in FIG. Therefore, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like attached to the ROM 18 may be difficult to read. Therefore, by changing the shape of the support member 69, characters, symbols, figures, and the like displayed on the ROM 18 itself, on a sticker, or the like are made easier to see. For example, as shown in FIG.
The cover 13 is provided with a support member 69e which does not cover the upper surface of the cover 13. Further, the support member 69e at a portion corresponding to almost the entire upper surface of the ROM 18, that is, the contact surface 69
a is formed at least transparent. In this way, ROM1
Characters, symbols, figures, and the like displayed on the sticker 8 itself or on a sticker or the like can be easily seen. Note that a gap G2 between the contact surface 69a and the upper surface of the ROM 18 may be provided or may be brought into contact. Also,
When the lens surface 69c is formed on the bottom 69d, the ROM 18
Characters, symbols, figures, etc. displayed on the sticker itself, on a sticker, or the like are enlarged to make them easier to see. On the other hand, a rectangular parallelepiped support member 69f shown in FIG. 30C may be provided on the cover 13 instead of the U-shaped support member 69e with the opening facing upward. This state is shown in FIG. The support member 69f is transparent and its lower surface 69g is formed so as to correspond to substantially the entire upper surface of the ROM 18. At this time, the lower surface 69
A gap G2 between g and the upper surface of the ROM 18 may be provided or may be brought into contact. Even in this case, characters, symbols, figures, and the like displayed on the ROM 18 itself or on a sticker or the like can be easily viewed.

(5) In the tenth and eleventh embodiments, the control board storage box 10 having the cover 13
The present invention was applied to a. Instead of this embodiment, the present invention may be applied to a control board storage box having a slidable cover 13. In FIG. 31, the cover 13 is provided so as to be slidable with respect to the case 12 in the vertical direction in the drawing (the direction of arrow C6). In this case, a cover 13h is provided in which a part of the cover 13 is recessed. The concave portion 13h is formed longer in the sliding direction than at least a portion corresponding to a portion covering substantially the entire upper surface of the ROM 18. Also, the recess 13h is
As shown in FIG. 32, a gap G2 between the lower surface and the upper surface of the ROM 18 may be provided or may be brought into contact. further,
When sliding the cover 13 from the closed state, the ROM 18 is mounted on the control board 11 on the side in the sliding direction. In this way, even when the cover 13 is slightly slid, the gap G2 between the lower surface of the recess 13h and the upper surface of the ROM 18 is maintained or is in contact. Therefore, even if the ROM 18 is illegally replaced with a foreign object such as a tool or a wire, the ROM 18 cannot be attached / detached. Therefore, the slidable cover 13
Control box storage box 10b provided with
M18 can be reliably prevented from being illegally exchanged.

(6) In the tenth and eleventh embodiments, the present invention is applied to the control board storage boxes 10a and 10b having the cover 13 which can be opened and closed around one side. Instead of this embodiment, the present invention may be applied to a control board storage box provided with a cover 13 that can be opened and closed with one point as a fulcrum. For example, there is a cover 13 that can be opened and closed using a corner of the case 12 as a fulcrum.
Even in this case, by making the gap G2 between the ROM 18 and the cover 13 shorter than the distance at which the ROM 18 can be attached and detached, it is possible to reliably prevent the ROM 18 from being illegally replaced. RO near the fulcrum
By arranging the M18, the ROM 18 cannot be attached / detached even when the cover 13 is slightly opened. Therefore, unauthorized replacement of the ROM 18 can be more reliably prevented.

[0084]

As described above, according to the present invention,
Attaching and detaching the lid on one side of the base body by attaching and detaching opening and closing means
The extremely simple structure that can be opened and closed
A gap is created between the sides of the base and lid
Can be engaged without the need for sealing parts.
Can be reduced. Moreover, the engagement hole of the detachable opening / closing means
And the engaging edge not only function as a hinge,
By disengaging the engagement hole and the engagement edge, the base body
The lid can be removed, and maintenance and inspection of the control board
And the lid may become an obstacle when replacing parts.
Absent.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a control board storage box according to a first embodiment.

FIG. 2 is an explanatory sectional view of FIG.

FIG. 3 is a front view of a case.

FIG. 4 is a front view showing a sealing unit group.

FIG. 5 is a cross-sectional view showing a sealing state of a sealing unit.

FIG. 6 is a sectional view showing a temporary fixing state of a sealing screw.

FIG. 7 is an exploded sectional view of a sealing portion.

FIG. 8 is a front view of a seal group showing seal numbers.

FIG. 9 is an explanatory view of a sealing screw.

FIG. 10 is an exploded perspective view showing a fitting structure of a case and a cover.

FIG. 11 is an explanatory diagram of a temporary fixing structure of the sealing screw according to the second embodiment;

FIG. 12 is an explanatory diagram illustrating a temporary fixing structure of a sealing screw according to the third embodiment;

FIG. 13 is an explanatory diagram of a temporary fixing structure of a sealing screw according to a fourth embodiment.

FIG. 14 is an explanatory diagram of a temporary fixing structure of a sealing screw according to a fifth embodiment.

FIG. 15 is an explanatory diagram illustrating a sealing screw according to the sixth embodiment;

FIG. 16 is a sectional view showing a ROM holding structure according to a seventh embodiment;

FIG. 17 is an explanatory diagram illustrating a ROM holding member according to the eighth embodiment;

FIG. 18 is a front view showing a control board storage box according to the ninth embodiment.

FIG. 19 is an explanatory sectional view of FIG. 18;

FIG. 20 is an explanatory sectional view of a wiring portion.

FIG. 21 is a front view showing a state in which the control board storage box is mounted on a protective cover.

FIG. 22 is a front view showing a control board storage box according to the tenth embodiment.

23 is a sectional view taken along line AA of FIG.

24 is a sectional view taken along line AA of FIG. 22.

FIG. 25 is a cutaway perspective view of a portion where a detachable opening / closing means on one side of the case and the cover is provided.

FIG. 26 is a sectional view of the same.

FIG. 27 is an explanatory diagram showing attachment / detachment of the cover to the case and opening / closing of the cover.

FIG. 28 is a sectional view of a control board storage box according to the eleventh embodiment.

FIG. 29 is a sectional view showing a modification of the seventh embodiment.

FIG. 30 is a sectional view showing a modification of the eighth embodiment.

FIG. 31 is a front view showing a control board storage box of a sliding cover.

FIG. 32 is a sectional view taken along line BB of FIG. 31.

DESCRIPTION OF SYMBOLS 10 Control board storage box 11 Control board 12 Case (base body) 13 Cover (lid) 100 Removable opening / closing means 120 Engagement hole 120a Opening 121 Side wall upper edge 122 Engagement 130 Projection 131 Engaging edge

Claims (4)

[Claims] 1. A control board on which a semiconductor device for controlling a gaming machine is detachably mounted, and a cover for covering the control board, wherein a gap between the semiconductor device and the cover is attached to and detached from the semiconductor device. Game machine control device that is shorter than the distance that can be played. 2. The control device for a gaming machine according to claim 1, wherein a cover of a portion corresponding to the semiconductor device is formed in a lens shape. 3. The control device for a gaming machine according to claim 1, wherein a cover of a portion corresponding to a portion covering substantially the entire upper surface of the semiconductor device is formed transparently. 4. The game machine control device according to claim 1, wherein the cover is openable and closable about one side as an axis, and the semiconductor device is mounted on a control board near the axis. Game machine control device.