JPH08112421A - Control circuit device for pachinko game machine - Google Patents

Abstract

PURPOSE: To provide a suitable seeing-through window by firmly keeping the connection of a transparent synthetic resin seeing-through plate to a cover body consisting of a thin metal molding in the direct connected form for a long time. CONSTITUTION: The frame body 25 of a cover body is molded into a box frame form of a size capable of covering all circuit parts except each connector of a circuit board. A horizontally long rectangular window 31 is provided in the center of the lid part 30 of the frame body 25. A protruding part 34 capable of being protruded from and recessed into the window 31 is integrally molded on one surface side of a seeing-through plate 33. The seeing-through plate 33 is fitted to the circumference of the window 31 from the outside of the lid part 30, and the protruding part 34 is fitted to the opening periphery. In the state where the both 25, 33 are matched to each other and held, the protruding part 34 recessed into the window 31 is plastically deformed into a hook rail by thermal pressure molding, and pressure connected to and engaged with the opening peripheral inside of the window 31, whereby the frame body 25 and the seeing-through plate 33 are firmly installed together.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control circuit device for a pachinko gaming machine, and more specifically, for performing required electric control relating to various electric parts arranged in each part of the gaming machine. The present invention relates to the control circuit device.

[0002]

2. Description of the Related Art In a gaming machine of this type represented by a pachinko machine and an arranging machine, various electric devices arranged on the front frame and each part of the game board are provided at required parts of a mechanism set board mounted on the back side of the front frame. The control circuit device related to the objective parts (for example, lamp, switch, solenoid, motor and electronic variable display unit) is installed. This control circuit device, regardless of its size and shape, has a basic structure including a case body made of synthetic resin, a protective plate and a cover body made of thin-walled metal molding having an antistatic effect. Form a box body, and the required circuit board is built in between the protective plate and the cover body, and the whole is assembled into one box type unit, and finally, the appropriate parts of the case body and the cover body are assembled. The seal paper showing the certificate of conformity is attached so that it cannot be peeled off so that it can be used. Further, in such a control circuit device, in order to make it possible to confirm that it has a control circuit configuration suitable for the game content of the gaming machine, a transparent window (a transparent surface) is provided on the cover body to provide an internal circuit. It is obligatory to be able to see through the entire surface of the base.

[0003]

By the way, in the above-mentioned game control circuit device, regarding the construction of the transparent window for the circuit board, as a general example in consideration of productivity, cost, etc., the cover body is used. It is proposed to open a wide window in the cover plate part of the above and attach a see-through plate made of transparent synthetic resin to it. However, since the cover body and the see-through plate are made of completely different materials, it is extremely difficult to maintain a strong bond for a long period of time even if they are bonded with a strong adhesive, and the assembling strength of both cannot be guaranteed. In other words, there is an inconvenience that it is possible to remove the perspective plate from the cover body without damaging it, and then bond it again with an adhesive to restore the original state. It develops into a big problem that allows unauthorized modification of the internal circuit board while wearing it. Therefore, in this kind of control circuit device,
With a simple technology that emphasizes productivity and cost, it is impossible to separate the transparent plate at the window of the cover body without breaking it,
There is a strong need for a proposal that can maintain a strong bond for a long time to form a suitable transparent window.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in order to suitably solve the above-mentioned problems, and a transparent synthetic resin molding is applied to a window of a cover body made of thin metal molding by a simple technique with an emphasis on productivity and cost. An object of the present invention is to provide a control circuit device for a pachinko gaming machine, in which a transparent plate made of a material is directly and firmly connected and maintained for a long time to form a suitable transparent window.

[0005]

[Means for Solving the Problems] Overcoming the above-mentioned problems,
In order to achieve the intended purpose, the present invention is a control circuit device for controlling various electrical parts in a pachinko gaming machine, which is detachably attached to the back side of the gaming machine by molding synthetic resin. A case body, a shield metal plate formed by thin-walled metal and housed in a laid state inside the case body for electrostatic absorption and electrostatic prevention, and the necessary circuits and parts related to the electric parts are arranged and shielded. It consists of a circuit board that is set on the protective plate at appropriate floating intervals, and a cover body that covers the circuit board by attaching a see-through plate for the circuit board to the window of the frame body of thin metal molding. Then, the shield protection plate, the circuit board and the frame body of the cover body are assembled and held by tightening screws into the respective screw holes in a state where the ground contact surface portions of the shield body are in contact with each other, while in the cover body, Attached to the window of the frame body Fluoroscopic plate, the appropriate projections molded on one side surface, is plastically deformed appropriately shape by pressing processing, characterized in that engaged crimping engagement around part of the window by.

[0006]

The control circuit device is constructed as a box-shaped unit by sequentially accommodating and setting the shield protection plate and the circuit board for electrostatic absorption and electrostatic charge prevention on the case body and assembling the frame body of the cover body. . The case body, the shield protection plate, the circuit board, and the frame body of the cover body are assembled and held by tightening the screws in their respective screw holes with the ground contact surface portions of each other in contact with each other, so that the circuit board from the outside Electrostatic protection measures are taken against the circuit board by absorbing the static electricity that tries to enter the board. Further, the see-through plate attached to the window of the frame body in the cover body, because the protrusion is plastically deformed by pressure molding and pressure-engaged with the peripheral portion of the window, maintains a strong bond for a long period of time. It becomes possible. Moreover, when the transparent plate is separated from the window, the plastically deformed protrusion and the transparent plate cannot be returned to their original state by being damaged, so that the unauthorized modification of the internal circuit board is prevented.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A control circuit device for a pachinko gaming machine according to the present invention will now be described with reference to the accompanying drawings with reference to preferred embodiments. In this embodiment, a mechanism set board (also simply referred to as a mechanism board) on the back side of the pachinko machine, which is schematically shown in FIG.
A control circuit device that is detachably installed in a required portion of S and that controls various electric parts arranged in each portion of the front frame F and a game board (not shown) will be mainly exemplified.

The control circuit device of the present embodiment has a basic structure as shown in FIGS.
The case body A detachably attached to the lower part of the back side of the case A, the shield protection plate B for static electricity absorption and anti-static measures stored in the case body A in a laid state, and the shield protection plate B A circuit board C that is housed and protected, and a cover body D that is detachably assembled to the case body A to protect the circuit board C by covering the circuit board C to prevent static electricity absorption and static electricity and to be seen through from the outside. The four units are configured as a box-type unit which can be handled as a single unit by tightening screws 37 at the portions (four corners) where these four members are aligned with each other.

The case body A is formed of a transparent synthetic resin material (for example, a polycarbonate material) in the shape of a horizontally rectangular box as an assembly of a base body and other members of the apparatus itself. Then, the bottom plate portion 1 provided with a plurality of heat dissipation holes 2
A support edge 4 is formed from the left and right wall edges 3 of the peripheral edge of the, and a connecting support piece 5 is projectingly provided, and a locking tool 7 for attachment / detachment is pre-fitted and fitted into the through hole 6. Cage and bottom plate 1
A plurality of boss-shaped support seats 10 each having a screw hole 11 and a plurality of pin-shaped locking seats 12 (four in the drawing) are provided on each inner peripheral portion of the. Further, one connecting support piece 5 is provided on the left side and two connecting support pieces 5 are provided on the right side. As for each locking tool 7, as shown in FIG.
The split engagement tool 8 that is detachably fitted and locked in the engagement hole 39 formed in is fitted into the through hole 6 of each connecting support piece 5 to lock and lock the engagement tool 8. An operating rod 9 for changing to an unlocked state is inserted into the tubular member 8.
A locking edge 13 is formed on the upper and lower wall edges 3 of the bottom plate portion 1 as required.

The shield protection plate B absorbs static electricity (also referred to as static noise) that tries to enter the circuit board C from the outside and protects the circuit board C from static electricity. (For example, tin plate or galvanized iron plate)
Is formed into a substantially rectangular lid plate shape. Further, contact support edges 15 are formed on both left and right sides of the bottom plate portion 14 which is laid in the case body A, and engagement edges 16 are formed on upper and lower edges, respectively.
In addition, through-holes 19 through which the ground contact surface portion 17 aligned with the support seat 10 and the locking seat 12 can be inserted are formed in each portion around the bottom plate portion 14. Each ground contact surface portion 17 also serves as a seat for the circuit board C and forms a screw hole 18.

On the other hand, the circuit board C is used as a control circuit board for various electric parts on the game machine side in a main body (eg, epoxy resin board mixed with glass fiber material) 20 formed in a predetermined rectangular size. A required circuit pattern is formed, and various circuit components 21 and a power source (for example, AC 24V), electrical components, a connector 22 for the relay board, and the like, which are schematically indicated by a two-dot chain line in the figure, are arranged. Then, screw holes 23 are provided at respective corners (four positions in the drawing) of the main body 20, and ground contact surfaces 24 made of solder are formed on the front and back surfaces around the screw holes 23. All the ground contact surfaces 24 are electrically conductively connected to each other and also connected to the ground (ground) side of each circuit component.

In the cover body D, a transparent synthetic resin molding see-through plate 33, which is a see-through surface of the circuit board C, is mounted on a frame body 25 for absorbing static electricity, which is made of a thin metal material. That is, the frame main body 25 is formed in a box frame shape having a size capable of covering all the circuit components 21 except the respective connectors 22 of the circuit board C, and has abutting support edges 2 on both left and right sides.
6. A contact edge 27 is formed at each of the lower edges, while a large number of heat dissipation holes 29 are formed in a required surface area of the peripheral wall portion, and a horizontal rectangular window 31 is opened in the center of the lid portion 30 of the frame body 25. Has been done. On the other hand, the see-through plate 33, as described later,
A part of it is plastically deformed based on the pressure forming process, and is firmly attached and connected directly to the periphery of the window 31. The upper and lower contact supporting edges 26 on the left and right of the frame body 25 are ground contact surfaces for the circuit board C to form screw holes 28.
A contact portion 26a for the upper engagement edge 16 of the shielding protection plate B is formed as needed.

By the way, in the control circuit device of this embodiment constructed as described above, the form of the window 31 of the frame body 25 in the cover body D is as shown in FIGS. 2 and 3 (d). A square aperture example and a lattice example as shown in FIG. 7 are proposed. On the other hand, with respect to the manner of mounting the see-through plate 33, an external mounting example (table mounting example) as shown in FIGS. 8 and 9 and an internal mounting example (backing example) as shown in FIGS. 10 and 11 are proposed. .
The periphery of the window 31 shown in FIGS. 9 and 11 is the frame body 2
The lid 30 has a receiving edge 32 formed in a stepped shape. Regarding the mode of pressure-bonding the see-through plate 33 to the window 31 of each frame body 25, the projecting portion integrally formed on one surface side of the see-through plate 33 is plastically deformed by using an appropriate pressure forming machine. Thus, there is proposed a technique in which both sides 25 and 33 are directly mounted and coupled by crimping and engaging the inner peripheral edge of the window 31 and the periphery of the engagement opening in a held state. Hereinafter, detailed description will be given with reference to specific examples.

That is, regarding the mode of crimping and coupling the see-through plate 33 to the window 31 of the frame body 25, first, as a concrete example plan based on the "external example" of FIGS.
For example, as shown in FIGS. 12 (a) and 12 (b), the transparent plate 33 is abutted on the window 31 from the outside of the lid portion 30, and the transparent plate 33 is attached.
The rail-shaped protrusion 34 formed around the one side surface of 3 is aligned with the peripheral edge of the opening. Then, while both 25 and 33 are aligned and held, the protrusion 34 that is immersed in the window 31 is plastically deformed into a hook-shaped rail shape by pressure molding, and is crimped and engaged inside the opening edge of the window 31. Will be installed firmly. Further, as shown in FIGS. 13 (a) and 13 (b), the transparent plate 33 is put on the peripheral portion of the window 31 from the outside of the lid portion 30, and the elasticity formed by being scattered around one side surface of the plate 33. The deformable hook-shaped protrusion 34 is inserted into each engagement opening 35 formed in the peripheral portion. Then, while both 25 and 33 are aligned and held, the respective protrusions 34 that are immersed in the respective engagement openings 35
The head is plastically deformed by pressure forming, and is press-fitted inside the peripheral edge of each engagement port 35 to be firmly attached. It should be noted that, with the projections 34 as shafts, the projections 34 immersed in the engagement openings 35 are plastically deformed into a rivet shape by pressure molding, so that the perspective plate 3 is attached to the frame body 25.
It is also possible to attach 3.

Similarly, regarding the crimping connection mode, as a concrete example plan based on the "internal attachment example" of FIGS. 10 and 11, as shown in FIGS. 14 (a) and 14 (b), for example, see through Put the plate 33 against the lid 30 from the inside of the frame body 25,
A large number of boss-shaped projections 34 formed around one side surface of the plate 33 are provided at respective engagement openings 35 formed at the periphery of the window 31.
Insert into. Then, while both 25 and 33 are aligned and held, the respective projections 34 projecting out of the respective engagement openings 35 are plastically deformed into rivets by pressure molding, and pressure-bonded to the outer periphery of the respective engagement openings 35. By fitting them together, they are firmly attached. In the “internal mounting example” shown in FIG. 14, the protrusion 34 is formed into an elastically deformable hook shape like the “external mounting example” shown in FIG. Both the heads 25 and 33 may be mounted by plastically deforming the head of the protruding portion 34. In addition, FIG.
As shown in (a) and (b), the see-through plate 33 is abutted against the receiving edge 32 of the window 31 from the inside of the lid portion 30 to form a large number of rib-like members formed around one side surface of the plate 33. The protrusion 34 is inserted into each of the engagement ports 35 that are recessed around the edge 32. Then, while keeping both 25 and 33 aligned, each engagement port 3
5. Each of the protrusions 34 protruding outside is plastically deformed into a hook shape by a pressure forming process, and each engaging port 35 and the receiving edge 32 are formed.
It is firmly attached by being crimped and engaged on the outer periphery of the.

Regarding the mode of crimping and connecting the see-through plate 33 to the lattice-shaped window 31 of the cover body D shown in FIG.
In the “external attachment example” shown in FIG. 16, the shaft-shaped protrusion 34 formed on the peripheral edge of one side surface of the see-through plate 33 is inserted into each engagement opening 35 formed on the peripheral edge of the opening of the lattice window 31. While plastically deforming by pressure molding similar to the above,
A rib-shaped protrusion 34 formed in the center of one side surface of the plate 33.
Are plastically deformed by pressure molding on the crosspieces 36 of the lattice-shaped window 31, and are firmly attached by pressure-bonding them. In addition, in the “internal attachment example” shown in FIG. 17, an elastically deformable hook-shaped projection 34 formed on the peripheral edge of one side surface of the see-through plate 33 is provided at each engagement opening formed at the peripheral edge of the opening of the lattice-shaped window 31. 35 through which the rib-shaped projection 34 formed at the center of one side surface of the plate 33 is plastically deformed by pressure molding similar to that described above.
By plastically deforming each crosspiece 36 of No. 1 by pressure molding,
They are firmly attached by crimping and connecting them. In addition, in the "external example" shown in FIG. 16, the projection 34 formed on the peripheral edge of one side of the see-through plate 33 has a hook shape that is elastically deformable, or in the "external example" shown in FIG. The protrusion 34 formed on the peripheral edge of one side surface of 33 may be formed in a shaft shape. In any of the above-described crimping and coupling modes,
When the protrusion 34 is plastically deformed by using a pressure molding processing device, pressure molding (thermocompression molding) is performed in a state where a required temperature is given to facilitate the plastic deformation of the protrusion 34. May be.

According to each of the above-mentioned see-through plate pressure-bonding joining techniques, a third joining member (for example, a rivet or a screw) is attached to the frame body 25, although the see-through plate 33 is made of different materials. The unnecessary direct connection ensures a strong attachment for a long period of time and ensures a long assembly strength with each other. By the way, in the perspective plate attached state illustrated in each figure,
Each of the perspective plates 33 does not break (separate) the projection 34 that is crimped and engaged with the periphery of the window 31 or the like by plastic deformation, unless the frame body 2
It is impossible to separate from 5. Therefore, in particular, with respect to the see-through plate 33 according to the "external example", even if the projection 34 is broken and separated, the original state is kept again after that.
The control circuit device with the proper see-through window cannot be mounted on the window 31 of the frame body 25 (while using the protrusion 34). In other words, it is possible to effectively prevent the internal circuit board C from being tampered with in anticipation of the peeling and reattachment of the see-through plate 33.

[0018]

In the control circuit device of the present embodiment constructed as described above, the shield protection plate B, the circuit board C and the cover body D are accommodated in this order in the case body A as an assembly body.
It can be combined into a box-shaped unit by a simple work procedure of tightening screws in the screw holes of each of the four parties, and as a proper circuit device with a suitable sealing paper attached, it can be easily installed on the backside of the mechanical board S at a predetermined site. It can be installed in.

Therefore, first, regarding the assembly of the apparatus itself,
This will be described with reference to FIGS. That is, the case body A
The shield protection plate B is accommodated in the opening surface of the laying state. As a result, in both A and B, the bottom plate portions 1 and 14 and the left and right support edges 4 and the contact support edges 15 are aligned and abutted, and the upper and lower engaging edges 13 are positioned and engaged. On the other hand, the ground contact surface portion 17 is brought into contact with each support seat 10 to align the screw holes 11 and 18 with each other, and each locking seat 12
Is held in a state of protruding into the through hole 19. Then, the circuit board C is placed on the shield protection plate B in the case body A with the circuit board C facing outward. As a result, the main body 20 is positioned by the abutment support edge 15 and the engagement edge 16 of the protective plate B, and the earth contact surface portions 17 and 24 are brought into contact with each other to align the screw holes 18 and 23 and the bottom plate portion 14. With respect to each ground contact surface part 17 and the locking seat 12, appropriately float (separate)
It is set in the state.

Then, from the outside of the circuit board C to the cover body D
And cover it with the case body A side. As a result, the upper and lower engaging edges 13 of the case body A are attached to the contact portions 2 of the frame body 25.
6a and the abutment edge 27 are positioned and engaged with each other, the abutment support edges 15 of the shield protection plate B and the frame main body 25,
26 and the upper and lower engaging edges 16 and the abutting portions 26a and 27 are abutted, respectively, while the upper and lower ground contact surfaces of the abutting support edges 26 on the left and right sides of the frame body 25 are the respective grounds of the circuit board C. The screw holes 28, 23 are set in a state where they are brought into contact with the contact surface portion 24 and the screw holes 28, 23 are aligned with each other. Under this condition, screw holes 11, 18, 23, 28 at respective positions from the outside of the cover body D
By screwing the common screw 37 into the case, the constituent members B, C, and D are assembled and fixed to the case body A, and configured as one box-shaped unit-shaped circuit device.

Finally, matching sealing paper (not shown) is attached to both side surfaces of the case body A and the frame body 25 of the cover body D. In addition, when a plurality of (for example, two or more) sealing sheets are attached, one of them is a chamfered portion 3a provided at the center of the lower wall edge 3 of the case body A shown in FIG.
And the recess 27a formed at the center of the lower edge of the frame body 25, both A and 25 can be non-peelingly attached under the same flat surface condition. Further, the see-through plate 3 of the cover body D
A transparent name sticker (not shown), which describes the company name, the outline of the device itself, and the model name (model name) of the game machine, is attached to the central part of 3. However, this name sticker
It may be attached to the inside of the see-through plate 33, or may be printed on the outside or inside.

In the control circuit device of this embodiment constructed and assembled as described above, the four constituent members A, B, and
As a connecting means for C and D, the minimum required number of four screws 37
Can be evenly tightened and fixed. And all these screws 3
7, the ground contact surface portions 17, 24, 2 of the constituent members B, C, D
Since they are fastened through the screw holes 18, 23, 28 in 6, the mutual ground contact surface portions 17, 24, 26 are always kept in proper pressure contact with each other, and good electrostatic charge prevention of the circuit board C can be achieved. Moreover, in the shield protection plate B and the frame body 25 of the cover body D, the contact supporting edges 15 and 26, the engaging edge 16 and the contact portion 26a and the contact edge 27 are constantly pressed and held, respectively, and a suitable earth effect is obtained. Can be achieved. In such a control circuit device, with respect to the internal circuit board C, the back surface pattern (solder surface) is visible through the upper and lower wall edges 3 of the transparent case body A, and the cover body D is Since the circuit part (hard part) can be seen through the see-through plate 33, it is easy to inspect and confirm the circuit board C from the outside.

The control circuit device of the present embodiment configured as described above is, as an embodiment thereof, simply attached to the back side of the mechanism board S of the gaming machine by using the attachment means of each part of the case body A. Can be set. That is, as shown in FIGS. 1 and 6,
After temporarily pulling back the operating rods 9 of the respective locking tools 7 mounted on the connecting support pieces 5 on both sides of the case body A, the engagement cylinder tool 8 in the unlocked state is moved to the cover member 38 of the mechanism board S. It fits in the engagement hole 39. Then, the operating rod 9 is pushed in to change the engagement tubular member 8 to the expanded lock state and lock it in the engagement hole 39, so that the circuit device is stably installed. Further, by bringing the respective locking tools 7 into the unlocked state, the engagement between the engagement tube tool 8 and the engagement hole 39 of the cover member 38 is released, and the entire device can be quickly removed. Even in the actual state of the apparatus, the back surface pattern and the circuit portion of the internal circuit board C can be inspected through the wall edges 3 on both sides of the case body A and the see-through plate 33 of the cover body D.

Incidentally, in the control circuit device of this embodiment,
The constituent members A, B, C, and D can be assembled and configured even if left and right are reversed (upside down), or can be installed and implemented. In any of the forms and the implementation states, as for an example of the system conventionally adopted for removing the static electricity absorbed by the frame body 25 of the shielding / protecting plate B and the cover body D, the game hole is finally used. It is premised that the power source inside the unit will escape to the ground. For example, as schematically shown in FIG. 18 for reference, the static electricity (static noise) absorbed by the shielding protection plate B passes through the diode in the circuit of the circuit board C along the path indicated by the arrow in the figure, and the leakage of the transformer occurs. Is finally absorbed by the ground side of the power supply unit (AC100V). However, in the actual case, static electricity may be diffused (attenuated) in the long circuit process reaching the ground side. Instead of this, the shield protection plate B and the frame body 25
A ground wire may be connected to either of the above.

As the control circuit device to which the present invention is applied, other techniques are preferably recommended in addition to the above-described embodiments. For example, as an example of how the device itself is installed on the mechanism board S, as shown in FIG. 6, the locking tool 7 in the case body A is omitted, and the cover member 38 side is provided in the upper and lower recesses 4a of the left and right support edges 4. The hook piece 40 provided on the upper side of the supporting edge 4 of the case body A has a hole 42 above and below the supporting edge 4 as shown in FIG. May be formed and connected to and supported by the pin 44 of the connection fulcrum portion 43 formed on the cover member 38 side so as to be detachable and openable / closable. In addition, as an example in which the internal circuit board C can be seen through, the case body A is made of opaque synthetic resin, and a large number of holes are formed in the bottom plate portion 1 of the case body A. B may have a number of holes formed in the bottom plate portion 14.

On the other hand, as for the cover body D, as shown in FIG. 20, a metal frame body 25 having a window 31 is provided.
A box lid-shaped transparent body 45 having a transparent plate portion 33 for the window 31 may be combined inside. The transparent body 45 is mounted by crimping and engaging a protrusion (not shown) plastically deformed by pressure molding with the peripheral edge of the window 31 as described above. Three
It is suitable for any one of the above. The frame body 2
The inner and outer surfaces of 5 may be coated with an antistatic coating, and the joint surfaces of the frame body 25 and the see-through plate (including the see-through body 45) may be bonded with a coagulant adhesive in order to strengthen the attachment bond. May be.

[0027]

As can be understood from the above-mentioned embodiment,
In the control circuit device for a pachinko gaming machine according to the present invention, the case body, the shield plate for electrostatic absorption and electrostatic charge prevention, the circuit board, and the frame body of the cover body, which constitute the device, contact each other at their ground contact surface portions. In the state of being in contact with each other, screws are tightened in the respective screw holes to be assembled and held. As a result, the static electricity that tries to invade the circuit board from the outside is absorbed, and the electrostatic protection measures for the circuit board are suitably performed. Further, the see-through plate attached to the window of the frame body in the cover body has a protrusion formed on one side thereof plastically deformed by pressure molding to be crimp-engaged with the peripheral portion of the window. It is possible to maintain a strong bond throughout. Moreover, when the see-through plate is mounted, the see-through plate cannot be separated from the frame body unless the projecting portion that is crimp-engaged with the window peripheral edge or the like due to plastic deformation is broken (separated). Even if the see-through plate is separated from the frame main body even after the parts are destroyed, it is impossible to mount it again in the window of the frame main body as it is in the original state and obtain a proper control circuit device with a transparent window.
In other words, it is possible to effectively prevent the internal circuit board from being tampered with in anticipation of the peeling and reattachment of the see-through plate.

[Brief description of drawings]

FIG. 1 is a rear view schematically showing an implementation (installation) state of a control circuit device for a pachinko gaming machine according to an embodiment of the present invention.

FIG. 2 is a perspective view schematically showing a control circuit device of the present embodiment in an exploded manner.

FIG. 3 is a front view schematically showing main constituent members of the control circuit device.

FIG. 4 is a side sectional view of the control circuit device in an assembled state.

FIG. 5 is a cross-sectional view of a main part of the control circuit device in an assembled state.

FIG. 6 is an exploded perspective view showing an attachment means of the control circuit device.

FIG. 7 is a front view schematically showing another type of cover body.

FIG. 8 is an explanatory view schematically showing an “external attachment example” of the see-through plate in the cover body.

FIG. 9 is an explanatory view schematically showing an “external attachment example” of the see-through plate in the cover body.

FIG. 10 is an explanatory view schematically showing an “internal attachment example” of the see-through plate in the cover body.

FIG. 11 is an explanatory view schematically showing an “internal attachment example” of the see-through plate in the cover body.

FIG. 12 is an explanatory view schematically showing an example of pressure bonding of a see-through plate to a window.

FIG. 13 is an explanatory view schematically showing an example of pressure-bonding a see-through plate to a window.

FIG. 14 is an explanatory view schematically showing an example of pressure bonding of a see-through plate to a window.

FIG. 15 is an explanatory view schematically showing an example of pressure-bonding a see-through plate to a window.

FIG. 16 is an explanatory view schematically showing an example of pressure-bonding a see-through plate to a window.

FIG. 17 is an explanatory view schematically showing an example of pressure bonding of a see-through plate to a window.

FIG. 18 is an explanatory diagram schematically showing an example of a ground circuit for removing static electricity.

FIG. 19 is a perspective view showing another example of the attachment means of the control circuit device.

FIG. 20 is an explanatory view schematically showing another example of how the transparent member is attached to the cover body.

[Explanation of symbols]

 11 screw hole 17 ground contact surface 18 screw hole 23 screw hole 24 ground contact surface 25 frame body 26 abutting support edge 28 screw hole 31 window 33 see-through plate 34 protrusion 37 screw A case body B shielding protection plate C circuit board D cover body

Claims (1)

[Claims] 1. A control circuit device for controlling various electric parts in a pachinko gaming machine, which is made of synthetic resin and is detachably attached to the back side of the gaming machine (A). And, a thin metal molded case body (A)
A shield protection plate (B) for static electricity absorption and electrostatic protection that is housed in a laid state inside, and the necessary circuits and parts related to the above-mentioned electrical parts are arranged, and the floating distance is appropriately set on the shield protection plate (B). Circuit board (C) set with, and thin metal frame body (25)
Consisting of a cover body (D) for protecting the circuit board (C) by attaching a see-through plate (33) for the circuit board (C) to the window (31) of the case body (A), The shield main plate (B), the circuit board (C) and the frame body (25) of the cover body (D) are screw holes in a state in which the earth contact surface portions (17, 24, 26) are in contact with each other. (1
1,18,23,28) is tightened with screws (37) to be assembled and held, while the cover body (D) has a see-through plate (33) attached to the window (31) of the frame body (25). However, an appropriate protrusion (34) formed on one side of the
Is plastically deformed into an appropriate shape by pressure molding
A control circuit device for a pachinko gaming machine, characterized in that the peripheral portion of (31) is crimped and engaged.