JP2003126486A - Sealing structure for base board storage box in pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow resealing after sealing is released, while preventing fraudulent sealing release. SOLUTION: An opening part 15 is lock-sealed in an initial lid-closed condition by an initial sealing-locking piece 22. The lock-sealing is released when the locking piece 22 is broken, and the opening part 15 is opened to allow inspection for an electronic component of a circuit board. Since a trace of lock-release remains when the locking piece 22 is lock-released, fraudulent lock release preventing effect is expected. A lid 30 is moved thereafter along a guide groove 20, and it is brought into a lid-closed condition again while reversing a surface compared with the initial lid-closed condition. A resealing lock piece 32 is locked to a receiving piece 25 therein to lock-seal the lid 30. The lock is not released from an outside because it is carried out inside a box main body 10.

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a sealing structure of a substrate storage box in a pachinko machine. 2. Description of the Related Art For example, in a pachinko machine equipped with a variable display device, a circuit board having a CPU and the like for controlling the variable display device is housed in a box. Although the box is configured by assembling two cases, a seal paper has been attached to a joint between the two cases in order to prevent unauthorized modification of the circuit board and replacement of the circuit board with the illegally modified circuit board. [0003] However, in the case of such a sealing structure using a sealing paper, a situation in which the sealing paper is skillfully peeled off and re-attached without leaving any trace thereof is also assumed. Therefore, as a countermeasure, a method has been considered in which both cases are strictly assembled by a method in which once the two cases are separated, such as by bonding or welding, the joint portion is broken and cannot be assembled again. On the other hand, for the box containing the circuit board and sealed as described above,
Thereafter, a sampling inspection is conducted by a police agency to check for unauthorized modification or replacement of the circuit board. However, if both cases were sealed in the manner described above, the box would have to be discarded after the opening inspection,
A new box must be prepared for each inspection. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent the unauthorized release of a seal, and to enable the seal to be once released and then sealed again. [0004] In order to achieve the above object, a first aspect of the present invention provides a box body in which a circuit board is housed, an opening formed in the box body,
A cover plate which is rotatably supported from the initial position to the reversing position with respect to the opening, and which can close the opening at any position; and an initial seal for sealing the cover plate in the locked state at the initial position. Lock means, and a re-sealing lock means for sealing the lid plate again when it is turned to the reverse position after forcibly unlocking the initial sealing lock means. It is characterized by having. According to the first aspect of the present invention, when the circuit board is first housed in the box body, the cover plate is in the initial position, and the sealing plate is sealed by the initial sealing lock means at this position. Is made. Thereafter, when the inspection of the circuit board or the like is performed, the lock / sealing by the initial sealing locking means is forcibly released and the lid is opened. This makes it possible to perform an inspection on the circuit board. After or before the inspection is completed, the lid plate is turned over, and the lid plate is again locked and sealed in the closed state by the re-sealing lock means at that position. . As described above, according to the present invention, it is possible to prevent the unauthorized release of the seal, and once again release the seal and then perform the seal again. An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. The substrate storage box of the present embodiment is configured by assembling the box main body 10 and the cover plate 30. The box body 10 includes a fixed case 11 for fixing a circuit board (not shown), and a covering case 12 assembled to the fixed case 11 so as to cover the circuit board. Further, in the case of the present embodiment, the cover-side case 12 is composed of a resin case 13 and a metal cover 14 that is integrated over the surface of the resin case 13. Then, the circuit board is fixed to the fixed-side case 11, and the covering-side case 12 is assembled to the fixed-side case 11. Thereafter, sealing paper (not shown) is attached to the joint of the two cases 11, 12. Such a sealing structure is employed to prevent unauthorized modification of the circuit board and replacement of the circuit board with the illegally modified circuit board. It is desirable that the fixed-side case 11 and the cover-side case 12 be strictly assembled by a method in which once they are separated, such as bonding or welding, the joint is destroyed and cannot be assembled again. An opening 15 is formed in the resin case 13 in a rectangular shape as shown in the figure. When the metal cover 14 is attached to the resin case 13, the opening 15 is aligned with a window hole 16 opened at a position corresponding to the metal cover 14. Is to be exposed. The opening 15 is arranged in correspondence with an arrangement area of electronic components necessary for controlling the game operation, such as a ROM mounted on a circuit board in the box body 10, and has a size capable of taking out the ROM or the like therefrom. Is formed. The opening 15 is opened and closed by a cover plate 30 described later, and is locked in a closed state by locking means described later. There are two types of closed states, an initial closed state, which is an initial assembled state, and a reclosed state after sampling inspection, and the cover plate 30 is held at each position (initial position and inverted position) in these states. Is done. The initial closed state means a state where the cover plate 30 closes the opening 15 when the circuit board is housed in the box body 10 and sealed. In this initial closed state, the direction of the lid plate 30 is determined, and the lid 30 is locked in a state where the displacement in the opening direction is restricted by the initial sealing lock piece 22 described later.
The reclosed state means a state in which the opening 15 is closed again after the lock of the initial closed state is released. In the re-closed state, the cover plate 30 is turned upside down with respect to the initial closed state while keeping its long side parallel to the long side of the opening 15. Locked so that it cannot be released from outside. [0008] At the opening edge on the short side of the opening 15, an elongated holding portion 17 along the length direction thereof is provided with a resin case 13.
And a holding plate 18 that is a separate component from the resin case 13
The holding portion 17 and the holding plate 18 form a pair of guide grooves 20 along the opening edge on the short side of the opening 15. The guide groove 20 has a shaft portion 3 of a cover plate 30 described later.
4 are fitted. Further, the holding plate 18 is formed with a cover plate receiving portion 21 which protrudes into the opening area of the opening portion 15 and supports the cover plate 30 displaced to the closed state from the inside so as not to sink. An opening edge on one long side of the opening 15 has
Two pieces of initial sealing lock pieces (initial sealing lock means) 22 for locking the lid plate 30 to the initial closed state are formed integrally with the resin case 13. The lock piece 22 for initial sealing rises from the outer surface of the resin case 13, bends toward the opening area side of the opening 15, and the tip thereof is
It has a shape as if it is stabbed into the opening area toward the inside of the inside, and its tip is a locking claw 23 fitted into the lock hole 31 of the cover plate 30. The portion of the lock piece 22 for initial sealing rising from the resin case 13 is the cover plate 3.
0 is in an initial closed state, and has a shape that is bent so that a gap allowing a tool (not shown) to be inserted between the cover plate 30 and the surface of the cover plate 30 is opened. It is a part 24. When the tool is inserted into the tool insertion portion 24 and squeezed, the lock piece 22 for initial sealing is broken at the base end thereof and separated from the resin case 13. Is unlocked. At the opening edge opposite to the initial sealing lock piece 22, a receiving piece 25 that can be locked with the resealing lock piece 32 provided on the cover plate 30 is provided inward from the inner surface of the resin case 13. It is formed to protrude. When the resealing lock piece 32 is locked to the protruding end face of the receiving piece 25, the lid plate 30 is locked in the reclosed state.
The receiving piece 25 is slightly elastically bent so as to escape from the resealing lock piece 32 during the engagement operation with the resealing lock piece 32. The cover plate 30 has a rectangular plate shape that covers the opening 15 entirely. In the vicinity of one long side of the cover plate 30, two lock holes 31 corresponding to the lock pieces 22 for initial sealing are formed to penetrate the front and back. Further, the opening 1 is located at a position between the lock holes 31.
A resealing lock piece (resealing lock means, which is a constituent feature of the present invention) 32 corresponding to the receiving piece 25 of No. 5 is formed. The resealing lock piece 32 projects at a right angle from the cover plate 30, and a locking claw 33 projecting outward in the plate surface direction of the cover plate 30 is formed at the tip of the lock piece 32. The direction in which the resealing lock piece 32 projects from the lid plate 30 projects outside the box body 10 in the initial closed state, and projects inside the box body 10 in the reclosed state. . Then, in the re-closed state, the locking claw 33 of the re-sealing lock piece 32 is locked to the distal end surface of the receiving piece 25, whereby the cover plate 30 is locked in the closed state. The resealing lock piece 32 is slightly elastically bent so as to escape from the receiving piece 25 during the engagement operation with the receiving piece 25. The lid plate 30 is formed with a pair of shaft portions 34 protruding coaxially from both ends thereof along one long side thereof. The shaft portion 34 is fitted in the guide groove 20 so as to be able to rotate around a pivot and to move the opening portion 15 in the short side direction. It is attached in a state where the detachment from 13 is regulated. The attachment of the cover plate 30 is performed before the circuit board is housed in the box body 10. When the cover plate 30 is assembled, the shaft portion 34 is inserted from the inside of the resin case 13 into the guide groove 20 with the holding plate 18 removed.
1, the cover plate 30 is fitted, the opening 15 is closed, and the locking claw 23 of the initial sealing lock piece 22 is fitted into the lock hole 31. In this state, the holding plate 18 is fixed to the resin case 13 with screws 19. Then, as shown by a solid line in FIG. 1, the shaft portion 34 is fitted into the guide groove 20, and the shaft portion 34 is sandwiched between the initial sealing lock piece 22 and the cover plate receiving portion 21 from the outside and the inside, respectively. The plate 30 is locked in the initial closed state.
In this state, a sealing paper (not shown) is attached to the joint between the outer peripheral edge of the cover plate 30 and the opening edge of the opening 15. After the opening 15 is initially in the closed state, the circuit board is housed in the box body 10 and sealed. After the circuit board is stored and sealed in the box body 10 as described above, if the sampling inspection is performed to check whether the electronic components of the circuit board have been illegally modified or replaced, Both cases 11, 12
The opening 15 is opened in the following manner without releasing the sealing of the joint. When opening the opening 15,
The sealing paper stuck between the lid plate 30 and the resin case 13 in the initial closed state is peeled off, and the initial sealing lock piece 22 is broken at its base end by a tool (not shown) from the resin case 13. Let it separate. Then, since the lock is released, the opening 15 can be opened by displacing the cover plate 30 in the cover opening direction as shown by a chain line in FIG.
FIG. 2 is a perspective view showing a state before and after the destruction of the lock piece 22 for initial sealing. The initial sealing lock piece 22 located at the upper right of the figure is shown by an imaginary line before being broken, and the initial sealing lock piece 22 located at the lower left of the figure is broken and the resin case 1 is broken.
The solid line shows the state in which it is separated from the position No. 3 and is in the inverted posture. Further, once the lock piece 22 for initial sealing is broken and unlocked, the lock piece 22 for initial sealing cannot be locked again. Even if the initial sealing lock piece 22 is fixed to the resin case 13 with an adhesive and restored, the trace of destruction cannot be erased. Therefore, an effect of preventing the lock by the initial sealing lock piece 22 from being illegally released can be expected. Further, in the initial lid closed state, the resealing lock piece 32 projects outside the resin case 13, so that the resealing lock piece 32 is in contact with the opening edge of the opening 15 when the cover plate 30 is opened. There is no risk of interference. After the sampling inspection, the opening 15
Is locked in a state in which the cover plate 30 is closed by the cover plate 30, and the broken initial sealing lock piece 22 is
3 and has already lost the lock function, the lock to the closed state is performed by the resealing lock piece 32. In this locking operation, the shaft portion 34 is slid along the guide groove 20 to be positioned at the end opposite to the initial closed state, and the cover plate 30 is turned upside down from the initial closed state. The direction is changed, and the opening 15 is displaced so as to close it. Then, the resealing lock piece 32 is opened.
In the meantime, during this time, as shown in FIG.
The locking claw 33 of the resealing lock piece 32 comes into contact with the receiving piece 25, and both of them slightly elastically bend. After passing through this state, when the cover plate 30 comes into contact with the cover plate receiving portion 21 to be in the reclosed state, the resealing lock piece 32 and the receiving piece 25 are elastically restored as shown in FIG. As a result, the locking claw 33 is locked to the distal end surface of the receiving piece 25, and the lid plate 30 is locked so as not to be displaced in the lid opening direction. In the reclosed state, the locking between the resealing lock piece 32 and the receiving piece 25 is performed inside the box body 10, so that the lock cannot be released from the outside of the box body 10. Then, the outer peripheral edge of the lid plate 30 and the opening 1
The sealing paper is pasted again at the joint with the opening edge of No. 5. As described above, according to the present embodiment, when the lock piece 22 for initial sealing is destroyed and the lock is released, it becomes clear that the lock has been released by the trace of the destruction. It is intended to prevent unauthorized release of the seal. In addition, since the resealing lock piece 32 is provided separately from the initial sealing lock piece 22, the lock / sealing is released once, the circuit board is inspected, and then the lock / lock is performed again.
At the time of sealing work, the work can be easily performed. Further, since the lock by the re-sealing lock piece 32 is performed inside the box body 10, the lock cannot be released from the outside, so that the unauthorized lock / sealing is prevented from being released. Also, while the lock in the closed state is released, the shaft portion 34 is
0, the cover plate 30 is maintained in an integrated state with the box body 10, that is, the cover plate 30
Is made reversible without being detached from the box main body 10, the operation leading to the re-closing operation of the cover plate 30 is extremely smooth, and the inspection operation can be performed smoothly. <Other Embodiments> The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) The lock piece for initial sealing may be formed on the lid plate. (2) The resealing lock piece may be formed on the edge of the opening. (3) Not only the cover plate and the resin case but also the entire case for housing the circuit board may be made of resin. (4) The lock piece for initial sealing for locking the cover plate in the closed state, the lock piece for resealing, and the receiving piece engaged with the lock piece for resealing may all be made of metal. (5) The number of lock pieces for initial sealing and the number of lock pieces for re-sealing are not limited to the numbers shown in the above-described embodiment, and any number can be provided. (6) The shape of the lock piece for initial sealing and the manner of engagement with the cover plate are not limited to those described in the above embodiment. As long as it is not possible to perform the above, other shapes and other forms of engagement may be used. The same applies to the resealing lock piece. (7) In the present embodiment, the opening is made large with a wide area covering almost the entire front surface of the storage box for convenience of explanation. However, a ROM or a CPU with a built-in ROM which is a target of unauthorized modification on a circuit board is used. It is preferable that the opening is the minimum necessary for performing the sampling inspection of the electronic component (the integrated circuit component storing the game content).
That is, only the area corresponding to the mounting position of the electronic component is opened by the minimum area required for taking out and re-mounting the electronic component. In this case, since it is difficult to extract other components, the security function is further enhanced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of the present invention in a state of being locked and sealed by an initial sealing lock piece. FIG. 2 is locked and sealed by a re-sealing lock piece. FIG. 3 is a cross-sectional view showing a structure for supporting a cover plate on a box body. FIG. 4 is a partial cross-sectional view showing a state where the cover plate is locked and sealed by an initial sealing lock piece. FIG. 6 is a partial cross-sectional view showing a state in which the lock / seal is released by the sealing lock piece. FIG. 6 is a partial cross-sectional view showing an operation of locking / sealing by the resealing lock piece. 10: Box body 15: Opening 22: Locking piece for initial sealing (Locking means for initial sealing) 30: Lid plate 32: Locking piece for resealing (for resealing) Lock hands )

Claims (1)

Claims: 1. A box main body in which a circuit board is housed, an opening formed in the box main body, and an opening formed in the box main body to be rotatable from an initial position to an inverted position. A lid plate capable of closing the opening at any of the positions; an initial sealing lock unit for sealing the lid plate in a locked state at the initial position; and forcibly unlocking the initial sealing lock unit. And a sealing means for resealing the cover plate in a locked state when the cover plate is turned to the reversing position after the turning.