JP2005000322A - Circuit board storage case of game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily attach a shielding board to a case body while reducing the manufacturing cost. <P>SOLUTION: As an insertion piece 21d is inserted into a through hole 22a, the rear end of a sheet metal 22 is caught on the upper end of a restriction frame 21f. After that, the sheet metal 22 is slid in the left direction in the figure, the rear end is slid to be in contact with the upper end of the restriction frame 21f, then, the peripheral edge of the through hole 22a is engaged with an engagement part 21e of the insertion piece 21d. At the time, the bent sheet metal 22 is returned to its original state and the rear end falls down to a mounting face 21c, so that the sheet metal 22 covers the whole mounting face 21c. As a result, the outer periphery of the sheet metal 22 is enclosed by the restriction frame 21f, and the sheet metal 22 is restrained from moving parallel to the mounting face 21c. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a circuit board storage case of a gaming machine incorporated in a gaming machine.
[0002]
[Prior art]
Hereinafter, in this specification, a pachinko machine will be described as an example of a gaming machine in which a circuit board storage case is incorporated. In addition to the main circuit board that performs electronic lottery based on random number sampling, the pachinko machine has a symbol display device that notifies the lottery result of the electronic lottery by a combination of symbols, a lamp device that operates according to the gaming state, A circuit board for controlling various driving devices such as a sound generating device is provided. Each of these various circuit boards is housed in a security storage case to prevent fraud. Note that a sheet metal for preventing noise such as electromagnetic waves from other electronic devices and static electricity from a pachinko ball as a game medium from reaching the circuit board is attached to the surface of the case body.
[0003]
Pachinko machines having such a configuration are arranged in amusement halls such as pachinko parlors, and at the time of replacement with a new model, the old model pachinko machines removed from the game hall are collected and disassembled. At the time of this disassembling work, the reusable parts are used as parts of a new model after performing inspections such as operation check and shape check. For this reason, manufacturers that manufacture pachinko machines are considering making the pachinko machine so that it can be easily disassembled.
[0004]
[Problems to be solved by the invention]
For example, since the sheet metal is attached to the case body by screw tightening, the number of parts increases, resulting in a problem of cost increase during assembly work and dismantling work. On the other hand, as a method of attaching the sheet metal to the case body without increasing the number of parts, it is conceivable to provide a resin claw for holding the sheet metal in a predetermined position on the case body. In this case, the sheet metal can be assembled without increasing the number of parts. On the other hand, in order to prevent bending due to the reaction force from the resin claw when fitting, and bending due to heat generated by the pachinko machine after fitting, It is necessary to increase the rigidity of the steel, resulting in an increase in manufacturing cost.
[0005]
The present invention has been made in consideration of the above-mentioned background, and accommodates a circuit board of a gaming machine in which a sheet metal can be attached to a case body while reducing the number of parts and preventing an increase in manufacturing cost. The purpose is to provide a case.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the circuit board storage case of the gaming machine of the present invention includes a case main body for storing a circuit board for controlling the operation of the gaming machine, and is attached to the case main body so as to cover the surface of the case main body. And a shielding plate that prevents noise from reaching the circuit board, and a through hole is inserted into one of the surface of the case body or the shielding plate and the other through the through hole. The insertion member has a fitting portion into which a peripheral edge portion of the through hole is fitted in a state where the insertion member is inserted into the through hole, and the insertion member has a fitting portion. When the peripheral part of the through-hole is fitted, a restricting part is provided that surrounds the outer peripheral edge of the shielding plate and restricts the shielding plate from moving parallel to the surface of the case body.
[0007]
In addition, it is preferable that a plurality of the through holes and the insertion members are provided at predetermined intervals.
[0008]
Moreover, it is preferable to provide a lift preventing member for preventing the end portion of the shielding plate attached to the case main body from being lifted on the restricting portion.
[0009]
Further, the shield plate may be provided with a notch through which the lifting prevention member is inserted when the insertion member is inserted through the through hole.
[0010]
Moreover, it is preferable to provide the said case main body with the notch which exposes a part of outer periphery of the said shielding board.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, a game board 4 is disposed inside a main body frame 3 of a pachinko machine (game machine) 2, and a front frame 5 is provided on the front surface of the game board 4 so as to be freely opened and closed. Yes. Below the front frame 5, there are provided a supply tray 6 for supplying hitting balls and an operation handle 7 for adjusting the hitting strength of the pachinko balls. In the approximate center of the game area 4a of the game board 4, various symbols, characters, etc. are variably displayed within a predetermined time based on a predetermined winning condition such as a pachinko ball winning in a predetermined winning opening, and then stopped. A symbol display device 8 is arranged. Around that, various types of winning openings 10 and out openings 11 are provided. The player puts the pachinko ball into the supply tray 6, guides the pachinko ball to the launching device, rotates the operation handle 7, and launches the pachinko ball on the game board 4. The hit pachinko ball enters one of the winning ports 10 or is collected from the out port 11 while flowing down from above the game area 4a. Since a plurality of structures such as nails and windmills provided in the game area 4a are known, the description thereof is omitted.
[0012]
As shown in FIG. 2, the main frame 3 of the pachinko machine 2 has a symbol display device 8 in addition to a main control circuit board (circuit board) 15 that performs main control for operating various devices when playing a game. Various control circuit boards 16, a ball launching device 17, a ball paying device 18 and the like that perform operation control of a lamp device and a sound generation device (not shown) are provided. These control circuit boards and devices are electrically connected via a cable or the like (not shown).
[0013]
The main control circuit board 15 is stored in a storage case (circuit board storage case) 19 for security. The storage case 19 can be opened and closed with respect to the back surface of the pachinko machine 2 by a hinge 20. The case main body 21 constituting the storage case 19 is provided with a holding member 21a having a screw insertion hole 21b (see FIG. 3) through which a screw (not shown) for holding the storage case 19 in a closed state is inserted. The housing case 19 is fixed to the pachinko machine 2 by tightening a screw through a screw insertion hole 21b of the member 21a and a screw mounting hole (not shown) provided in the pachinko machine 2.
[0014]
As shown in FIGS. 3 to 8, the storage case 19 includes noise such as electromagnetic waves from a case main body 21 that stores the main control circuit board 15 and other electronic devices that reach the main control circuit board 15, and static electricity from the pachinko sphere. And a sheet metal (shielding plate) 22 for shielding the sheet.
[0015]
A rectangular attachment surface 21c to which the sheet metal 22 is attached is provided on the rear side of the case body 21 (the side facing the back surface of the pachinko machine 2 when fixed). On the center line L1 in the width direction of the mounting surface 21c, two substantially inverted L-shaped insertion pieces (insertion members) 21d are provided at a predetermined interval. Each of these two insertion pieces 21d is arranged at a point-symmetrical position with respect to the center point of the center line L1. The insertion piece 21d includes a base projecting in a direction perpendicular to the mounting surface 21c and a projecting portion projecting from the base in a direction parallel to the mounting surface 21c. The distance between the projecting portion and the mounting surface 21c is a sheet metal. It is set to be substantially the same as the thickness of 22. A portion surrounded by the base portion and the protruding portion and the attachment surface 21c is a fitting portion 21e of the insertion piece 21d.
[0016]
A restriction frame (regulation part) 21f is provided to protrude rearward at a portion bordering the outer sides of the four sides of the mounting surface 21c. The regulation frame 21f has an inner wall surface perpendicular to the mounting surface 21c. On the inner wall surface of one side of the regulation frame 21f along the width direction of the mounting surface 21c, a first lifting prevention piece (raising prevention) that prevents the end of the sheet metal 22 attached to the mounting surface 21c from lifting. Three members 21g are provided. Further, on the inner wall surfaces of both side portions along the longitudinal direction of the mounting surface 21c, a second lifting prevention piece (lifting prevention member) 21h for preventing the end of the sheet metal 22 attached to the mounting surface 21c from lifting. There are 5 each. The first lifting prevention piece 21g and the second lifting prevention piece 21h protrude in a direction parallel to the mounting surface 21c. The first lifting prevention piece 21g and the second lifting prevention piece 21h The distance from the mounting surface 21 c is set to be substantially the same as the thickness of the sheet metal 22.
[0017]
Of the restriction frame 21f, a portion of the case body along the width direction of the attachment surface 21c and the portion of the inner wall surface where the first lifting prevention piece 21g is not provided and the attachment surface 21c connected from this portion A notch 21 i is provided to expose a part of the outer peripheral edge of the sheet metal 22 attached to 21.
[0018]
The sheet metal 22 has a rectangular parallelepiped shape, and both surfaces thereof are substantially the same shape as the mounting surface 21c. On the center line L2 in the width direction of the sheet metal 22, there are provided two through holes 22a penetrating in the thickness direction of the sheet metal 22 and having a size allowing the insertion piece 21d of the case body 21 to be inserted. The through holes 22a are inserted so as to be symmetric with respect to a point on the center line L2 that is shifted from the center point of the center line L2 by a value slightly larger than the protruding amount of the first lifting prevention piece 21g. It is provided so as to have an interval similar to the interval at which the pieces 21d are provided. That is, as shown in FIG. 4, when the sheet metal 22 is disposed at a position where the insertion piece 21d is inserted into the through hole 22a, the sheet metal 22 is displaced with respect to the mounting surface 21c, and the tip of the sheet metal 22 (FIG. 4 is located in the right direction in the drawing with respect to the first lifting prevention piece 21g, and the rear end portion (right end portion in FIG. 4) of the sheet metal 22 is located above the restriction frame 21e.
[0019]
Five notches 22b are provided at both ends of the sheet metal 22 along the longitudinal direction. These notches 22b are formed in such a size that the second lifting prevention pieces 21h can be inserted therethrough, and are provided at intervals similar to the intervals between the respective second lifting prevention pieces 21h. When the sheet metal 22 is moved in the direction A in FIG. 3 and the insertion piece 21d is inserted into the through hole 22a, the second lifting prevention piece 21h is inserted into the notch 22b.
[0020]
Next, the operation of the pachinko machine 2 configured as described above will be described. When the sheet metal 22 is moved in the direction A in FIG. 3 and the insertion piece 21d is inserted into the through hole 22a and the second lifting prevention piece 21h is inserted into the notch 22b, the sheet metal 22 is displaced from the mounting surface 21c. Therefore, the rear end portion of the sheet metal 22 is hooked on the upper end of the regulation frame 21f, and the sheet metal 22 is bent (FIGS. 5 and 6). Subsequently, when the sheet metal 22 is slid in the direction B in FIG. 5, the rear end portion is in sliding contact with the upper end of the restriction frame 21f, and the front end portion is the inner wall surface of the restriction frame 21f provided with the first lifting prevention piece 21g. At the same time, the slidable contact is released. At this time, as shown in FIG. 9, the peripheral portion of the through hole 22a is fitted to the fitting portion 21e of the insertion piece 21d, the sheet metal 22 is returned from the bending, and the rear end portion falls on the mounting surface 21c. Thus, the sheet metal 22 covers the entire mounting surface 21c (FIGS. 7 and 8). If it becomes like this, the outer periphery of the sheet metal 22 will be surrounded by the control frame 21f, and it will be controlled that the sheet metal 22 moves in parallel with the attachment surface 21c. With this, the sheet metal 22 is attached to the main body case 21.
[0021]
Further, when the sheet metal 22 is attached to the main body case 21, as shown in FIG. 10, the leading end of the sheet metal 22 is fitted between the first lifting prevention piece 21g and the attachment surface 21c. Furthermore, as shown in FIGS. 6 and 7, both end portions along the longitudinal direction of the sheet metal 22 are between the second lifting prevention piece 21h and the mounting surface 21c. Thereby, the floating of the front end portion and both end portions of the sheet metal 22 is prevented.
[0022]
When removing the sheet metal 22 from the case main body 21, a jig such as a screwdriver is inserted into the notch 21i, and the rear end of the sheet metal 22 is lifted above the restriction frame 21f via the jig so that the sheet metal 22 is attached to the mounting surface. It is possible to slide in a direction parallel to 21c. Subsequently, the sheet metal 22 is slid in the direction opposite to the B direction in FIG. 5 to release the state in which the peripheral edge of the through hole 22a is fitted into the fitting portion 21e, and in the direction opposite to the A direction in FIG. By moving, the sheet metal 22 attached to the case main body 21 can be easily removed.
[0023]
In this embodiment, the storage case 19 for storing the main control circuit board 15 is taken as an example. However, the storage case 19 for storing another control circuit board such as a symbol display control circuit board for controlling the operation of the symbol display device is used. The invention may be implemented.
[0024]
In the present embodiment, the insertion piece (insertion member) 21d is provided on the attachment surface 21c of the case body 21, and the through hole 22a is provided on the sheet metal 22. However, the through hole is provided on the attachment surface of the case body, and the insertion member is provided on the sheet metal. Also good.
[0025]
In the present embodiment, the restriction frame (restriction part) 21f surrounds the entire outer peripheral edge of the sheet metal 22. However, as the restriction part, the movement of the sheet metal 22 in parallel to the mounting surface 21c of the case body 21 is restricted. Since it should just be possible, what surrounds the outer periphery of the sheet metal 22 partially may be sufficient.
[0026]
In the present embodiment, the two insertion pieces (insertion members) 21d are provided so as to be point-symmetric with respect to the center point of the center line L1 in the width direction of the attachment surface 21c of the case body 21. The number and the interval when a plurality of insertion members are provided may be appropriate. In addition, what is necessary is just to provide the same number of penetration holes of a sheet metal as an insertion member.
[0027]
In the present embodiment, the distance between the first lifting prevention piece 21g and the second lifting prevention piece 21h and the mounting surface 21c is substantially the same as the thickness of the sheet metal 22, but the first lifting prevention piece 21g and the second lifting prevention piece 21g Even if the interval between the anti-grinding piece 21h and the mounting surface 21c is slightly wider than the thickness of the sheet metal 22, there is no problem because the end of the sheet metal 22 can be prevented from rising.
[0028]
【The invention's effect】
According to the present invention, the circuit board storage case of the gaming machine of the present invention is attached to the case main body for storing the circuit board for controlling the operation of the gaming machine, and the case main body so as to cover the surface of the case main body, A shield plate that prevents noise from reaching the circuit board, and a through hole is provided on one of the surface of the case body or the shield plate, and an insertion member that is inserted through the through hole is provided on the other side. The insertion member has a fitting portion in which a peripheral edge portion of the through hole is fitted in a state where the insertion member is inserted into the through hole, and the through hole is formed in the fitting portion of the insertion member. When the peripheral portion of the shield plate is fitted, a restriction portion is provided that surrounds the outer peripheral edge of the shield plate and restricts the shield plate from moving parallel to the surface of the case body. Configuration for mounting on the case body And, the number of parts can be reduced since it does not use a fixed component such as a screw. Moreover, since the resin nail | claw etc. with a reaction force are not used, it is not necessary to raise the rigidity of a shielding board in order to prevent the bending of a shielding board. As a result, the manufacturing cost is reduced. Furthermore, in a state where the insertion member is inserted into the through hole of the shielding plate, the peripheral portion of the through hole is fitted to the fitting portion of the insertion member by simply sliding the shielding plate with respect to the case body, and the shielding plate is Since the shielding plate is easily attached to the case main body by being surrounded by the restricting portion, the efficiency of the work of attaching the shielding plate to the case main body is not lowered.
[0029]
Further, by providing a plurality of the through holes and the insertion members at predetermined intervals, the periphery of the through holes can be fitted into the fitting portions of the insertion members at a plurality of locations. Since the strength of attachment to the main body is increased, the shielding plate can be attached to the case main body more stably than when one through hole and one insertion member are provided.
[0030]
In addition, by providing a lifting prevention member that prevents the end of the shielding plate attached to the case body from being lifted in the restricting portion, the shielding plate may be deformed and lifted due to heat generated by the pachinko machine. In this case, the lifting prevention member restricts the lifting of the end portion of the shielding plate, so that the shielding plate is prevented from falling off from the case body.
[0031]
In addition, by providing the case main body with a notch that exposes a part of the outer peripheral edge of the shielding plate attached to the case main body, it is possible to contact a part of the outer peripheral edge of the shielding plate from the outside. Because it becomes easy to handle the shield plate by lifting the end of the shield plate and releasing the shield plate from the restriction from the restriction part in the process of removing the shield plate from the case body, recycling and reuse When it is necessary to separate the case main body and the shielding plate, etc., the workability is good and the cost is not excessive.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an external appearance of a front side of a pachinko machine incorporating a storage case embodying the present invention.
FIG. 2 is a perspective view showing the appearance of the back side of the pachinko machine.
FIG. 3 is an exploded perspective view illustrating a configuration of a storage case.
FIG. 4 is an exploded sectional view showing a configuration of a storage case.
FIG. 5 is a perspective view showing a state before the sheet metal is slid, and an enlarged perspective view showing the vicinity of a second lifting prevention piece of the case body.
FIG. 6 is a cross-sectional view showing a state before the sheet metal is slid.
FIG. 7 is a perspective view showing the configuration of the storage case, and an enlarged perspective view showing the vicinity of the second lifting prevention piece of the case body.
FIG. 8 is a cross-sectional view showing the configuration of the storage case, and an enlarged cross-sectional view showing the vicinity of the cutout of the case body.
FIG. 9 is a cross-sectional view showing a state in the vicinity of the insertion piece before and after sliding the sheet metal.
FIG. 10 is a cross-sectional view showing a state in the vicinity of the first lifting prevention piece before and after sliding the sheet metal.
[Explanation of symbols]
2 Pachinko machines (game machines)
15 Main control circuit board (circuit board)
19 Storage case (Circuit board storage case)
21 Case body 21c Mounting surface 21d Insertion piece (insertion member)
21e Fitting part 21f Restriction frame (regulation part)
21g First lifting prevention piece (lifting prevention member)
21h Second lifting prevention piece (lifting prevention member)
21i, 22b Notch 22 Sheet metal (shielding plate)
22a Through hole

Claims (5)

A gaming machine comprising: a case main body that stores a circuit board that controls the operation of the gaming machine; and a shielding plate that is attached to the case main body so as to cover the surface of the case main body and prevents noise from reaching the circuit board. In the circuit board storage case,
A through hole is provided on either the case body surface or the shielding plate, and the other is provided with an insertion member inserted through the through hole.
The insertion member has a fitting portion into which a peripheral edge portion of the through hole is fitted in a state where the insertion member is inserted into the through hole.
A restriction that surrounds the outer peripheral edge of the shielding plate and restricts the shielding plate from moving parallel to the surface of the case body when the peripheral edge portion of the through hole is fitted to the fitting portion of the insertion member. A circuit board storage case for a gaming machine, characterized in that a portion is provided. 2. A circuit board storage case for a gaming machine according to claim 1, wherein a plurality of the through holes and the insertion members are provided at predetermined intervals. 3. A circuit board storage case for a gaming machine according to claim 1, wherein a lifting prevention member for preventing the end portion of the shielding plate attached to the case main body from being lifted is provided in the restricting portion. 4. The circuit board storage case of the gaming machine according to claim 3, wherein the shielding plate is provided with a notch through which the lifting prevention member is inserted when the insertion member is inserted through the through hole. The circuit board storage case for a gaming machine according to any one of claims 1 to 4, wherein the case body is provided with a notch that exposes a part of an outer peripheral edge of the shielding plate attached to the case body. .

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