JP2003017871A - Control board box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent unauthorized acts, such that a case is broke open from a small space to take out only ROM, and then the ROM is replaced with a newly written ROM. SOLUTION: When a ROM 12 for storing a control program or the like is removably mounted on a printed board 10 via something like a socket 13, the ROM 12 is prevented from being removed differently from the seal of the case 20 by means of a removal preventing mechanism, including a frame 40, a tubular section 41, a projecting section 42, a band 43, or the like, to effectively prevent unauthorized acts by replacing the ROM 12.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control board box for containing and sealing a control board, and more particularly to a control board box for containing a control element such as a ROM. About. 2. Description of the Related Art A control board box of this type in a pachinko machine or the like is conventionally known as shown in FIG. A pair of shallow dish-shaped metal upper case 1 and metal lower case 2 have an opening surface facing each other to form an integral box-shaped case 3.
Can be formed, and the sealing paper 4
Can be sealed by pasting. A control board 5 such as a pachinko machine can be accommodated inside the case 3, and a ROM 7 can be mounted on the control board 5 via a socket 6. The ROM 7 stores a pachinko machine control program and a table. On the other hand, the case 3 is provided with a heat radiating hole 3a and an opening 3b for drawing out a cable 5a led out from the control board 5. In such a configuration, RO on the control board 5
The control board 5 is placed between the metal upper case 1 and the metal lower case 2 so that the cable 5a passes through the opening 3b, and is accommodated. After the storage, the screws are screwed with screws (not shown), and finally a sealing paper is attached. [0004] In the above-mentioned conventional control board box, the case 3 itself is prevented from being opened with the sealing paper 4. However, there has been a problem in that a gap may be pryed open or only the ROM 7 may be taken out by using the opening 3b, and a newly rewritten ROM 7 may be attached to commit fraud. The present invention has been made in view of the above problems, and has as its object to provide a control board box capable of preventing unauthorized replacement of a ROM. To achieve the above object, according to the first aspect of the present invention, a control board on which a control element is removably mounted, and the control board is housed and sealed. It is configured to include a case and a detachment preventing mechanism for preventing the control element from being detached on the control board. According to the present invention having such a configuration, after the control element is removably mounted on the control board, the control board is housed in the case and sealed after being housed. After sealing, even if the control element is taken out by opening the case or widening the gap without breaking the seal, the attachment / detachment prevention mechanism prevents the attachment / detachment of the control element on the control board. Here, the case may be any as long as it can house and seal the control board, and is composed of a main body and a lid, or a combination of a pair of shallow dish-shaped cases, or a lid-like one The structure and the like can be changed as appropriate, for example, after the control board is accommodated from the opening in a bottomed cylindrical case without the opening, the opening is closed with a sealing paper. The control board may be any board on which a control element such as a so-called ROM is removably mounted, and may be a general printed board or a board on which the control element is mounted on the outer peripheral surface. Even an electric device itself corresponds to a control board in a broad sense. That is, the control element is not limited to a plate-like body such as a printed circuit board. Of course, it is not necessary to be limited to ROM in a narrow sense,
It may be another element that stores a control program or the like, or may be an arithmetic element such as a CPU having a built-in ROM. In some cases, a jumper switch for changing the parameters of the control program may be used. Also, regarding the configuration to be detachably mounted,
It can be appropriately modified, such as a normal plug-in type socket or a type that is connected by surface contact. The attachment / detachment prevention mechanism only needs to prevent attachment / detachment of the control element after the sealing. in this case,
The control element may be prevented from being detached by a single mechanism, or may be a part of the case or the control board, or may be prevented from being detached in cooperation with the case or the control board. Here, removal of the control element,
Alternatively, only one of the attachments may be prevented. In addition, the control element may be fixed to prevent direct attachment / detachment, or may cover the periphery of the control element to prevent contact for removal. As described above, according to the present invention, the control element is prevented from being detached and attached separately from the sealing of the case. Therefore, it is possible to prevent the illegal operation such as replacing the control element without breaking the seal. It is possible to provide a control board box which can be prevented from occurring. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a control board box according to an embodiment of the present invention. In FIG. 1, a printed circuit board 10 serving as a control board has various electronic elements arranged on the surface thereof, and one end of a cable 11 connected to an external device is also connected. A CPU for controlling a game machine such as a pachinko machine is also mounted on the printed circuit board 10. A control program executed by the CPU is written in a ROM 12, and the ROM 12 itself is connected to a It is mounted on a printed circuit board 10. Since it is connected via the socket 13, the ROM 12 can be attached and detached as necessary, and the ROM 12 can be replaced as needed when checking external devices, in case of model change, or in case of law revision. I have. Although the socket 13 has a structure in which the ROM 12 is only pushed firmly from above, it may be configured such that a lever or the like is operated to facilitate attachment and detachment. The ROM 12 also stores control data of a random number table and a conversion table in addition to the control program. That is, in the present embodiment, the ROM 12
Constitute a control element, and the printed circuit board 10 constitutes a control board. The case 20 is composed of a pair of metal upper case 21 and metal lower case 22 in the form of a shallow dish, and they are joined together with their opening surfaces facing each other to form an integral box-shaped case. . Concave portions 23a and 23b are formed on one side surface of the two cases 21 and 22 in the longitudinal direction, and long openings 23 are formed adjacent to each other to communicate the inside and outside.
The cable 11 is led out through the long opening 23. A notch 22a is formed on one side in the lateral direction of the metal lower case 22 from the opening end, and the metal upper case 21 has a projection 21a protruding corresponding to the notch 22a. When the two cases 21 and 22 are combined with each other, the protrusion 21a enters the notch 22a to form a side surface. In this way, the convex portion 21a protruding from the metal upper case 21 enters the notch 22a formed on the metal lower case 22 side to form a side surface, so that the sealing paper 24 is convex in the longitudinal direction. It only has to intersect with the portion 21a. On the other hand, when affixing to another combination of the metal upper case 21 and the metal lower case 22, they must intersect in the short direction of the sealing paper 24, which requires careful work. The efficiency will be reduced. The printed circuit board 10 is housed inside the pair of metal upper case 21 and the metal lower case 22 so as to be sandwiched between the upper case 21 and the metal upper case 21. A rectangular tubular frame 40 having an inner diameter that matches the length between the peripheral surface and the socket 13 and that surrounds the socket 13 is mounted from above the socket 13. FIG. 2 shows a state in which the printed circuit board 10 is accommodated inside the metal upper case 21 and the metal lower case 22 while the frame body 40 is mounted. As shown in the figure, since the ROM 12 is mounted around the socket 13, the ROM 12 is surrounded by the frame 40 on all sides, the lower surface is surrounded by the socket 13, and the upper surface is surrounded by the ceiling surface of the metal upper case 21. Therefore, the bracket 13 is inserted into the socket 13 and the RO
Even if an attempt is made to insert between M12 and M12, it cannot be inserted because it is blocked by the frame 40. Of course, it cannot be removed from the socket 13 on the lower surface, and the metal upper case 21 on the upper surface cannot be opened. As a result, it is possible to prevent the ROM 12 from being detached and attached while the case 20 is sealed. That is, in the present embodiment, the frame 40 constitutes a detachment prevention mechanism. The frame 40 may be of any type as long as it surrounds the four sides of the ROM 12 and can be prevented from being detached. For example, the frame 40 may be surrounded by a wire net or a net. If the surrounding control elements generate heat, heat radiating holes can be formed. Further, the frame body 40 is simply mounted around the socket 13, but it is fitted to the socket 13 so that it does not come and go easily, or is fixed to the printed circuit board 10 by fitting. You can also do something like When the frame body 40 is formed of metal, it may be fixed to the printed circuit board 10 by soldering. Next, the operation of the present embodiment having the above configuration will be described. RO on socket 13 on printed circuit board 10
M12 is mounted, and a frame body 40 is mounted around the M12. In this state, the printed circuit board 10 is
The cable 11 is clamped from above and below by the lower case 1 and the metal lower case 22, pulled out from the long opening 23, and screwed with a bolt (not shown) or the like. In this state, even if a driver or the like is inserted through the long opening 23, it cannot be pushed below the ROM 12 surrounded by the frame 40, and the ROM 12 cannot be removed. Of course, since it is enclosed in this way, the ROM 12 itself cannot be removed or replaced with the rewritten ROM 12. In the present embodiment, a frame 40 having an inner diameter surrounding the socket 13 and having a length between the upper surface of the printed circuit board 10 and the ceiling surface of the metal upper case 21 is used as a detachment prevention mechanism. However, it can also be configured with other shapes. For example, the control board box shown in FIG. 3 includes a case 20 including a resin upper case 25 and a lower case 26, and a frame 40 extending from the ceiling surface of the upper case 25 toward the periphery of the socket 13. A cylindrical portion 41 having the same shape as that of FIG. Also in this configuration, if the printed circuit board 10 on which the ROM 12 is mounted is accommodated so as to be sandwiched between the upper case 25 and the lower case 26, the cylindrical portion 41 surrounds the periphery of the socket 13 so that the ROM 12 cannot be detached. Can be In the present embodiment, the upper case 25 is made of resin, but the metal upper case 21 is usually provided with a transparent lid so that the inside can be seen. A similar tubular portion 41 can be formed. Further, in the embodiment shown in FIG. 4, the surrounding wall 13 is formed by extending the periphery of the socket 13 upward in a cylindrical shape.
a is formed, and when the ROM 12 is mounted in the socket 13, as shown in FIG.
2 can be shielded. In this case, although the ROM 12 can be attached and detached from above, the attachment and detachment of the ROM 12 can be substantially sufficiently prevented since the metal upper case 21 covers the upper portion. Until now, detachment has been prevented by surrounding the ROM 12 with a so-called barrier, but if the ROM 12 can only be pulled out upward from the socket 13 as in the ROM 12, the diagram will be omitted. As shown in FIGS. 6 and 7, a convex portion 42 may be formed on the ceiling surface of the resin upper case 27. With this configuration, the convex portion 42 comes into contact with the upper surface of the ROM 12 when sandwiched between the upper case 27 and the lower case 28.
The M12 cannot be pulled out upward, and the attachment / detachment of the ROM 12 can be sufficiently prevented. That is, a stopper that does not completely surround the ROM 12 but cannot move in the extraction direction is adopted to prevent the ROM 12 from being detached. In FIGS. 8 and 9, the socket 13 and the ROM 12 are wound around by a band 43. In other words, the ROM 12 is tied up to prevent the ROM 12 from being detached. As described above, when the ROM 12 for storing the control program and the like is detachably mounted on the printed circuit board 10 via something like the socket 13, the frame 40, the cylindrical portion 41, the convex portion 42 And the band 43 and the like to prevent the case 20 from being detached.
By preventing the ROM 12 from being detached and attached separately from the sealing of the ROM 12, it is possible to effectively prevent impropriety due to the replacement of the ROM 12.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a control board box according to an embodiment of the present invention. FIG. 2 is a partially cutaway side view of the control board box. FIG. 3 is an exploded perspective view of a control board box according to a modification. FIG. 4 is a perspective view of a socket employing a detachment prevention mechanism. FIG. 5 is a side view showing a state where a ROM is mounted on the socket. FIG. 6 is an exploded perspective view of a control board box according to a modification. FIG. 7 is a partially cutaway side view of the control board box. FIG. 8 is a perspective view showing a state in which a band adopted as a detachment prevention mechanism is mounted. FIG. 9 is a perspective view when the band is worn. FIG. 10 is a perspective view of a conventional control board box. [Description of Signs] 10 ... Printed circuit board 12 ... ROM 13 ... Socket 13a ... Enclosing wall 20 ... Case 21 ... Metal upper case 22 ... Metal lower case 25 ... Upper case 26 ... Lower case 27 ... Upper case 28 ... Lower case 40 ... frame 41 ... cylindrical part 42 ... convex part 43 ... band

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[Procedure amendment] [Submission date] April 8, 2002 (2002.4.8) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] Claims [Amendment method] [Modifications] [Claims] [Claim 1] A control board on which a control element is detachably mounted, a case accommodating and sealing the control board, and the control element on the control board In order to prevent the attachment and detachment of the control element, a detachment prevention mechanism including a cylindrical portion extending from the ceiling surface on the mounting surface side of the control element in the case toward the periphery of the control element is provided. Characteristic control board box. [Procedure amendment 2] [Document name to be amended] Description [Item name to be amended] 0006 [Correction method] Change [Content of amendment] [Means for solving the problem] Claims for achieving the above object The invention according to 1 is a control board in which a control element is detachably mounted, a case in which the control board is housed and sealed, and a case in which the control element is mounted on the control board in order to prevent the control element from being detached. The control device is provided with a detachment prevention mechanism composed of a cylindrical portion extending from the ceiling surface on the mounting surface side of the control element toward the periphery of the control element. [Procedure amendment 3] [Document name to be amended] Description [Item name to be amended] 0007 [Correction method] Change [Contents of amendment] According to the present invention having such a configuration, the control element is detached from the control board. After being mounted as possible, the control board is housed in a case, and sealed after being housed. After sealing, even if the control element is taken out by opening the case or widening the gap without breaking the seal, the attachment / detachment prevention mechanism prevents the attachment / detachment of the control element on the control board. More specifically, the attachment / detachment prevention mechanism includes a cylindrical portion formed by extending from the ceiling surface on the mounting surface side of the control element in the case, and is removed by covering the periphery of the control element. To prevent contact. [Procedure amendment 4] [Document name to be amended] Description [Item name to be amended] 0009 [Correction method] Change [Contents of amendment] The detachment prevention mechanism can prevent the control element from being detached after the sealing. If possible. For this reason,
As another example, it may be one that prevents the detachment of the control element by a single mechanism, or a part of the case or the control board, or one that prevents the detachment in cooperation with the case or the control board. There may be. Here, it may be possible to prevent only one of the removal and attachment of the control element. Further, the control element may be fixed to directly prevent detachment.

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Claims (1)

Claims: 1. A control board on which a control element is detachably mounted, a case accommodating and sealing the control board, and preventing the control element from being detached on the control board. A control board box comprising a detachment prevention mechanism.