JP2007175533A - Storage case for control circuit board for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate inspection of a ROM carried on a control circuit board and effectively prevent fraudulent act. <P>SOLUTION: Between a cover body 60 and an inspection window 50, a connection section 61 and a claw piece 63 are provided. The connection section 61 fixes the cover body 60 in the state of closing the inspection window 50 and capable of being disconnected at the time of inspection. The claw piece 63 extending from the cover body 60 and engaged with the rim of the inspection window 50 when the cover body 60 is mounted again on the inspection window 50 after inspection to fix the cover body 60 on the inspection window 50 unremovably from the window 50. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a storage case for a control circuit board for gaming machines, and in particular, can prevent unauthorized modification of the control circuit board.

In gaming machines such as pachinko machines, the game operation is controlled based on the game control program stored in the ROM, and the content of the game control program affects the player's profits such as the payout rate. . Therefore, for the purpose of increasing the profits of the game store by inviting the gambling feeling of the player, there is a gaming program that can provoke the gambling feeling of the player with the ROM storing the regular gaming program. There is a case where an illegal act of replacing the stored ROM is performed.

Conventionally, in order to prevent such unauthorized modification of the control circuit board, the control circuit board is stored in a storage case, and the storage case is sealed so that it can be detected that the storage case has been tampered with. It was.
Sealing of the storage case has been performed by, for example, a method of sticking a seal stamp on the opening / closing part of the storage case.

However, in the method of sealing by sticking a seal stamp on the opening / closing part of the storage case, the seal case was skillfully peeled to open the storage case, and the ROM mounted on the control circuit board was replaced with an unauthorized ROM, and then forged. In some cases, a fraudulent act of sticking a seal stamp or a peeled seal stamp may be performed, and there is a problem that the fraud cannot be prevented.
Accordingly, a storage case for solving the above-described problems has been proposed and disclosed in Japanese Patent Application Laid-Open No. 4-215781.

  The storage case disclosed in Japanese Patent Laid-Open No. 4-215781 is a component surface on which electronic components of a control circuit board are mounted, and a front plate portion and a bottom plate portion of the storage case facing the opposite solder surface. An opening having a size that allows the entire area of the control circuit board to be seen through is opened, the opening is closed with a transparent plate, and a conductive plate member is detachably disposed at least outside the opening formed in the bottom plate portion. It is.

In addition, the storage case has an opening having a size that allows the entire area of the control circuit board to be seen through on the front plate portion of the storage case facing the component surface on which the electronic components of the control circuit board are mounted. The opening is closed with a transparent plate, and a notch opening through which a space formed by the bottom plate portion of the storage case and the solder surface of the control circuit board can be seen through is formed on the periphery of the base portion of the storage case.
In the storage case described above, the component surface and the solder surface of the control circuit board can be seen through the transparent plate, so it is possible to discover whether the electronic components mounted on the component surface are different from those specified. In addition, it was possible to discover whether or not a jumper wire was connected to the solder surface.
JP-A-4-215781

However, even in the storage case disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 4-215811, in order to prevent the storage case from being opened and closed illegally after the control circuit board is stored in the storage case, The point that had to be sealed was the same as that of the conventional storage case.
And whether the ROM mounted on the control circuit board stores the regular game program after the control circuit board is stored in the storage case and sealed, and the control circuit board is attached to the gaming machine. There was a case where I wanted to inspect.

In such a case, in the case where the above-described conventional control circuit board is stored, the sealing of the storage case is once released, the control circuit board stored in the storage case is inspected, and then sealed again in the storage case. There is a first problem that the inspection work is troublesome.
In addition, in the case of the conventional storage case described above, when an unauthorized modification that is not apparent from the appearance is made, that is, when the ROM is replaced with a ROM that stores an unauthorized control program that is indistinguishable from a regular product in appearance. Could not find this tampering. Therefore, the second problem is that fraudulent acts cannot be prevented if a forged or peeled seal paper is pasted after the storage case is illegally opened and closed and replaced with an illegal ROM. was there.

Therefore, the present invention has been proposed in view of the problems of the conventional techniques described above, and has the following objects.
That is, the invention described in claims 1 and 2 has been proposed in view of the first and second problems described above, and its object is to inspect the ROM on the substrate in the storage case. An inspection window is provided, and the inspection window can be opened by releasing the seal during inspection, and by attaching a lid that can be sealed again after inspection, the ROM mounted on the control circuit board can be easily inspected. it is possible, Ru near to provide a control circuit board of the storage case for a game machine capable of preventing fraud effectively.

The invention according to claim 3 is proposed in view of the second problem described above, and the object is to provide a member that closes a gap generated in the peripheral portion of the inspection window before and after the inspection. Accordingly, it is an object of the present invention to provide a storage case for a control circuit board for a gaming machine that can prevent illegal acts even more effectively.

(Feature point)
The present invention is for achieving the above object, and the contents thereof will be described below with reference to the embodiments shown in the drawings.
The invention described in claim 1 is characterized by the following points.
That is, for example, as shown in FIG. 2, the storage case (10) for the control circuit board for gaming machines contains the control circuit board provided with the control circuit for gaming machines and the control circuit board. A fixed case (20) having an open top surface, and a cover case (30) that closes the open top surface of the fixed case (20) and is detachably welded to the fixed case (20). It has.

As shown in FIG. 1, the cover case (30) is mounted on the control circuit board and closes the inspection window (50) facing the ROM (40) storing the game control program. And a lid (60).
One side of the lid (60) protrudes from the lid (60) to the surface of the cover case (30) and is attached to the surface (e.g., primary side claw piece locking portion 51, passage portion). 53).
On the other side opposite to one side of the lid (60), a secondary side engaging portion (for example, a secondary side claw piece locking portion 52) that engages with the cover case is provided.
A primary side locking part (for example, primary side claw piece locking part 51) to which a primary side engaging part (for example, a protruding part 62, a claw piece 63, a protruding piece 64) is attached to the peripheral part of the inspection window (50); When the primary side engaging portion (for example, the protruding portion 62, the claw piece 63, the protruding piece 64) is attached to the primary side locking portion (for example, the primary side claw piece locking portion 51), the secondary side engaging portion (E.g., front-side facing piece 65, back-side facing piece 66) and a secondary-side locking portion (e.g., primary-side claw piece locking portion 52) that engages the primary-side engaging portion (e.g., protruding) before inspection. When the primary side locking part (for example, the primary side claw piece locking part 51) is attached to the part 62, the claw piece 63, and the protruding piece 64), the secondary side engaging part (for example, the front side facing piece 65, the back side facing) Piece 66) and the secondary side locking portion (for example, the secondary claw piece locking portion 52) are engaged, and the lid (60) is fixed in a state where the inspection window (50) is closed, At the time of inspection, the primary side engaging part (for example, the protruding part 62, the claw piece 63) attached to the cover case (30). By removing the projecting piece 64) from the cover case (30), the lid (60) is opened from the inspection window (50), and after the inspection, the primary side engaging portion (for example, the projecting portion 62, the claw piece 63) is opened. , The projecting piece 64) and the secondary side locking part (secondary claw piece locking part 52) are engaged, and the secondary side engaging part (for example, the front side facing piece 65, the back side facing piece 66) and the above-mentioned The lid (60) can be fixed again in a state where the inspection window (50) is closed by engaging with the primary side locking portion (for example, the primary claw piece locking portion 51).

Specifically, the storage case (10) is formed of plastic or the like, for example, with the fixed case (20) and the cover case (30) as separate bodies.
Specifically, the lid (60) is formed of, for example, plastic.
Specifically, the claw piece (63) is integrally formed with the lid (60), for example, with plastic or the like.

The invention described in claim 2 is characterized by the following points in addition to the characteristics of the invention described in claim 1 described above.
That is, the primary side engaging portion protrudes from the lid (60) to the surface of the cover case (30), extends from the projection (62) attached to the surface, and the lid (60), and covers before the inspection. Engage with the case, and after inspection, when the lid (60) is mounted on the inspection window (50) again, it engages with the peripheral edge of the inspection window (50) to inspect the lid (60). The claw piece (64) that is fixed so as not to be removed from the window (50) and the claw piece (64) are adjacent to each other, and the claw piece (64) is opposed to the lid body (50) in the thickness direction, and the lid body (50 ) And a projecting piece (64) projecting from the surface of the cover case (30).
The secondary-side engaging portion includes a front-side facing piece (65) and a back-side facing piece (66) that are formed so that the peripheral edge of the inspection window (50) can be inserted in the thickness direction of the lid (60). It was.
The primary side locking portion is a primary side claw piece locking portion (51) that engages with the claw piece (63) before the inspection with the lid (60) fixed in a state where the inspection window (50) is closed. Adjacent to the primary claw piece locking portion (51) and before the inspection is fixed with the inspection window (50) closed, it is blocked by the protruding piece (64) and the protruding piece (64) is fixed to the case. And a passage portion (53) that allows passage in the (20) direction.
The secondary-side locking portion was provided with a secondary-side claw piece locking portion (52) that engaged with the claw piece (63) after the inspection that was fixed again in a state where the inspection window (50) was closed.
Specifically, the protruding piece (64) is integrally formed with the lid (60), for example, by plastic or the like.
The invention described in claim 3 has the following features in addition to the features of the invention described in claim 2 described above.
That is, the back-side facing piece (66) was disposed so as to close the passage portion (53) of the inspection window (50) after the inspection was fixed again in a state where the inspection window (50) was closed.

Specifically, the front-side facing piece (65) and the back-side facing piece (66) are integrally formed with the lid (60), for example, with plastic or the like.
(Function)
Next, the operation of each invention described in each claim having the above-described features will be described below.

According to invention of Claim 1, there exists the following effect | action.
The control circuit board is provided with a control circuit for a gaming machine on which a ROM (40) storing a program for controlling the gaming machine is mounted.
The control circuit board is stored in the storage case (10) and fixed to the gaming machine. To store the control circuit board in the storage case (10), the control circuit board is stored and attached to the fixed case (20), and the open upper surface of the fixed case (20) is closed by the cover case (30). The control circuit board is sealed in the storage case (10) by welding the cover case (30) to the fixed case (20).

The cover case (30) is provided with an inspection window (50) for inspecting the ROM (40) storing the game control program on the control circuit board. ) .
When the ROM (40) is inspected, the primary side engaging portion (for example, the protruding portion 62, the claw piece 63, and the protruding piece 64) of the lid (60) is connected to the primary side engaging portion ( For example, it engages with the primary side claw piece locking portion 51), and also engages with the secondary side engagement portion (for example, the front side facing piece 65, the back side facing piece 66) and the secondary side locking portion (for example, the secondary side claw piece locking portion). Since the portion 52) is engaged, the lid (60) is opened by releasing this engagement.

When the inspection of the ROM (40) is completed, the primary side engaging portion (for example, the protruding portion 62, the claw piece 63, the protruding piece 64) and the secondary side locking portion (for example, the secondary side claw piece locking portion 52) are connected. By engaging the secondary side engaging part (for example, the front side facing piece 65, the back side facing piece 66) and the primary side locking part (for example, the primary side claw piece locking part 51), (60) is fixed again with the inspection window (50) closed.
According to invention of Claim 2, in addition to the effect | action of above-mentioned Claim 1, there exists the following effect | action.

The protrusion (62) and the claw piece (63) of the lid (60) engage with the primary claw piece locking portion (51) of the cover case (30), and the front side facing piece of the lid (60) ( 65) and the back-side opposing piece (66) and the secondary-side claw piece locking portion (52) are engaged, the projecting piece (64) passes through the passage portion (53) of the cover case (30). It is blocking.
When inspecting the ROM (40), the protrusion (62), the claw piece (63) and the protrusion (64) of the lid (60) are connected to the primary claw piece locking portion ( 51) and the front side facing piece (65) and the back side facing piece (66) of the lid (60) and the secondary side claw piece locking portion 52) are engaged. The lid (60) is opened by releasing.
When the inspection of the ROM (40) is completed, the protrusion (62) and the claw piece (63) of the lid (60) are engaged with the secondary claw piece locking portion 52, and the lid (60) By engaging the front-side facing piece (65) and the back-side facing piece (66) with the primary-side claw piece locking portion (51), the lid (60) is again closed with the inspection window (50) closed. Fix it.
According to invention of Claim 3, in addition to the effect | action of Claim 1 or Claim 2 mentioned above, there exist the following effects.

  When the inspection window (50) after inspection is closed with the lid (60), the passage portion (53) of the inspection window (50) can be closed by the back-side facing piece (66).

Since this invention is comprised as mentioned above, there exists an effect as described below.
That is, in the invention described in claim 1 , before the inspection, the inspection window is closed with the lid . At the time of inspection , the lid is opened from the inspection window by removing the primary-side engaging portion attached to the cover case from the cover case.
After the inspection, the primary side engaging portion and the secondary side locking portion engage with each other, and the secondary side engaging portion and the primary side locking portion engage with each other, whereby the lid body Can be fixed again while the inspection window is closed.
Further, in the invention according to claim 2, before the inspection, the protruding portion and the claw piece of the lid body engage with the primary claw piece locking portion of the cover case, and the front side facing piece and the back side of the lid body. Since the projecting piece blocks the passage part of the cover case in a state where the opposing piece and the secondary side claw piece locking part are engaged, the lid is opened by releasing this engagement. To do.
After the inspection, the projecting portion and the claw piece of the lid body are engaged with the secondary side claw piece engaging portion, and the front side facing piece, the back side facing piece and the primary side claw of the lid body are engaged. By engaging with the one locking portion, the lid can be fixed again with the inspection window closed.

Therefore, according to the first and second aspects of the invention, it is possible to easily inspect the ROM mounted on the control circuit board, and to effectively prevent illegal acts. A storage case for a circuit board can be provided.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the following effect is obtained.

That is, in the invention described in claim 3, the passage portion generated at the peripheral portion of the inspection window after the inspection is closed by the back side facing piece so that the wire or the like cannot be inserted into the storage case from the passage portion.
Therefore, according to the third aspect of the present invention, it is possible to provide a storage case for a control circuit board for a gaming machine that can more effectively prevent fraud.

(Storage case for control circuit boards for gaming machines)
1 to 6 show an example of an embodiment of the present invention.
1 to 6 show an embodiment of a storage case for a control circuit board for gaming machines according to the present invention. FIG. 1 is a plan view of the storage case showing an inspection window and a lid portion, and FIG. FIG. 3 is a perspective view of the lid, FIG. 4 is a cross-sectional view taken along the line AA in FIG. 1, FIG. 5 is a cross-sectional view taken along the line BB in FIG. 1, and FIG. CC sectional drawing is shown, respectively.

In FIG. 2, reference numeral 10 denotes a storage case for a control circuit board for gaming machines. The storage case 10 stores a control circuit board (not shown) and fixes the control circuit board to the gaming machine. A fixed case 20 having an open upper surface and a cover case 30 that closes the open upper surface of the fixed case 20 and is welded to the fixed case 20 so as not to be detached are provided.
(Control circuit board)
Although not shown in detail, the control circuit board is a board provided with a control circuit for controlling a gaming operation in a gaming machine such as a pachinko machine. As shown in FIG. 1, a ROM 40 storing a game control program is mounted on the control circuit board. Based on the game control program stored in the ROM 40, the game operation in the gaming machine is controlled. That is, for example, in a pachinko machine, the winning probability such as a big hit depends on the contents of the game control program.
(Fixed case)
As shown in FIG. 2, the fixed case 20 is formed of a box-shaped member having a substantially rectangular cross section with an open upper surface.

As shown in FIG. 2, a pair of positioning projections 22 and 22 for positioning the cover case 30 are provided on the upper portions of the side walls 21 and 21 on the short side of the fixed case 20 respectively. Protrusively provided.
Further, as shown in FIG. 2, a pair of mounting holes 23 and 23 for attaching and fixing the cover case 30 are provided on both side walls 21 and 21 on the short side of the fixing case 20, respectively. Yes.

Further, as shown in FIG. 2, a welded portion 25 for welding the cover case 30 protrudes toward the outside of the fixed case 20 at the upper part of the outer side surface of the one side wall 24 on the long side of the fixed case 20. Is provided. A welding shaft 26 is provided on the upper portion of the welding portion 25 so as to protrude upward.
The fixed case 20 is formed by integral molding of plastic, for example.
(Cover case)
As shown in FIG. 2, the cover case 30 is formed of a member having a substantially rectangular cross section for matching the open upper surface of the fixed case 20 and closing the open upper surface of the fixed case 20.

The upper surface of the cover case 30 is provided with a pair of positioning holes 31 and 31 that engage with the positioning protrusions 22 and 22 at positions where the positioning protrusions 22 and 22 provided on the fixed case 20 face each other. .
Further, as shown in FIG. 2, both side walls 32 and 32 on the short side of the cover case 30 have elasticity and flexibility at positions where the mounting holes 23 and 23 of the fixing case 20 face each other. A pair of engaging claws 33, 33 that engage with the mounting holes 23, 23 are provided so as to protrude downward. Each engaging claw 33, 33 is provided with a step portion 34 projecting toward each mounting hole 23, 23 on the side surface facing each mounting hole 23, 23 of the fixed case 20, and from the step portion 34 toward the tip. In this way, a tapered portion 34 having a reduced diameter is provided.

  Further, as shown in FIG. 2, a welding piece 37 having a welding shaft insertion hole 36 through which the welding shaft 26 is inserted is provided on the upper surface of the cover case 30 at a position facing the welding portion 25 of the fixed case 20. ing. Further, as shown in FIG. 2, a substantially rectangular inspection window 50 is provided on the upper surface of the cover case 30 at a position facing the ROM 40 mounted on the control circuit board. A substantially rectangular plate-like lid 60 for closing is attached.

The cover case 30 is formed by plastic integral molding, for example.
(Lid)
As shown in FIGS. 1 to 3, the lid 60 fixes the lid 60 in a state where the inspection window 50 is closed at substantially the center of one edge of the long side, and can be cut at the time of inspection. 61 is provided to protrude toward the outside of the lid body 60.

Further, in the vicinity of both sides on the long side, projecting portions 62 that can be cut at the time of inspection are provided so as to project toward the outside of the lid body 60, similarly to the connecting portion 61.
Further, as shown in FIGS. 1 to 3, the lid body 60 is inspected at the inspection window 50 after the inspection so that the edge portion provided with the connecting portion 61 is positioned between the connecting portion 61 and the protruding portion 62. Three claw pieces 63... Are provided to protrude downward and engage with the peripheral edge of the inspection window 50 when attached to the inspection window 50, and detachably fix the lid 60 from the inspection window 50. ing.

Further, as shown in FIGS. 1 to 3, the one edge provided with the connecting portion 61 and the claw piece 63 is adjacent to the claw piece 63 and is opposed to the claw piece 63 and the lid 60 in the thickness direction. Projection pieces 64 are provided so as to protrude toward the outer side of the lid body 60, respectively.
Moreover, as shown in FIGS. 1-3, the peripheral part of the inspection window 50 can be inserted in the other edge part which turns away from the side which provided the connection part 61 and the nail | claw piece 63, and the thickness direction of the cover body 60 is shown. Four front side facing pieces 65... And three back side facing pieces 66... Facing each other are provided so as to protrude toward the outside of the lid body 60.
(Connecting part)
As shown in FIGS. 1 and 3, each of the connecting portions 61 extends to the surface of the cover case 30 outside the inspection window 50. Therefore, when the inspection window 50 is closed with the lid 60, the tip of the connecting portion 61 is caught by the peripheral edge of the inspection window 50, so that the lid 60 does not enter the storage case 10 from the inspection window 50. Yes.

Further, as shown in FIG. 1, a lid welding shaft insertion hole 67 is provided at the tip of the central connecting portion 61, and a lid welding shaft is formed on the surface of the cover case 30 opposed to the lid welding shaft insertion hole 67. 38 is provided so as to project upward, and the lid welding shaft 38 is inserted into the lid welding shaft insertion hole 67 and welded to seal the inspection window 50 with the lid 60 closed. it can.
The connecting portion 61 may be formed integrally with the lid 60, or may be formed separately from the lid 60 and attached to the lid 60 by adhesion or the like.
(Protruding part)
As shown in FIGS. 1 and 3, each of the protrusions 62 extends to the surface of the cover case 30 outside the inspection window 50. Therefore, in the state where the inspection window 50 is closed with the lid 60, the tip of each connecting portion 61 is caught by the peripheral edge of the inspection window 50, and the lid 60 does not enter the storage case 10 from the inspection window 50. ing.

The protruding portion 62 may be formed integrally with the lid body 60 as in the case of the connecting portion 61, or may be formed separately from the lid body 60 and attached to the lid body 60 by adhesion or the like. .
(Nail piece)
As shown in FIGS. 2 to 6, each of the claw pieces 63 is provided with a stepped portion 68 protruding toward the outside of the lid body 60 on the side surface facing the outside of the lid body 60, and from the stepped portion 68 to the tip. A tapered portion 69 that decreases in diameter is provided.

Each claw piece 63 has elasticity and flexibility.
The claw piece 63 may be formed integrally with the lid body 60, or may be formed separately from the lid body 60 and attached to the lid body 60 by adhesion or the like.
(Front side facing piece, back side facing piece)
As shown in FIGS. 1 to 3, the front-side facing pieces 65 extend to the surface of the cover case 30 outside the inspection window 50, respectively.

Further, as shown in FIGS. 1 to 3, the back-side facing pieces 66 are alternately arranged with the front-side facing pieces 65 with the lid 60 interposed therebetween, and the tip portions of the back-side facing pieces 66 are the cover cases 30 outside the inspection window 50. Extends to the surface of The back-side facing piece 66 is provided by removing the position of the primary-side claw piece locking portion 51 or the secondary-side claw piece locking portion 52 provided on the peripheral edge of the inspection window 50 described in detail later.
Therefore, in the state where the inspection window 50 is closed with the lid 60, the cover case 30 at the peripheral edge of the inspection window 50 is sandwiched between the front-side facing pieces 65 and the back-side facing pieces 66, and the lid 60 is placed in the inspection window 50. Can be attached.

The front-side facing piece 65 and the back-side facing piece 66 may be formed integrally with the lid body 60, or may be formed separately from the lid body 60 and attached to the lid body 60 by adhesion or the like.
(Inspection window)
A pair of primary-side claw piece locking portions 51, 51 for fixing the lid body 60 and a pair of secondary-side claw piece locking portions 52, respectively, on both peripheral edges on the long side of the inspection window 50, 52 are provided so as to protrude downward.

In addition, on the long side of the peripheral side where the primary claw piece locking portion 51 is provided, a passing portion 53 for passing each protruding piece 64 provided on the lid 60 is opposed to the protruding piece 64. Three places are provided.
(Primary claw piece locking part, secondary claw piece locking part)
As shown in FIGS. 1, 2, 4 to 6, the primary claw piece locking portion 51 is configured to claw pieces of the lid 60 when the inspection window 50 is closed with the lid 60 before the control circuit board is inspected. 63 is a member for locking.

The secondary claw piece locking portion 52 is a member for locking the claw piece 63 of the lid 60 when the inspection window 50 is closed with the lid 60 after the inspection of the control circuit board (FIG. 9). , 10 and will be described in detail later).
The primary side claw piece locking part 51 and the secondary side claw piece locking part 52 may be formed integrally with the cover case 30 or formed separately from the cover case 30 and covered by bonding or the like. It may be attached to the case 30.
(Passing part)
Each passing portion 53 is for passing each projecting piece 64 provided on the lid 60, and when the inspection window 50 is closed with the lid 60 before the control circuit board is inspected, each passing portion 53 Each protrusion 64 faces 53.

When removing the lid 60 for the inspection of the control circuit board, each projecting piece 64 can pass through each passing portion 53 to allow the lid 60 to enter the inside of the storage case 10.
Since each projecting piece 64 faces each passing portion 53 of the inspection window 50, foreign matter such as a wire cannot be inserted through each passing portion 53. For this reason, it is possible to effectively prevent an illegal act such as a modification of the control circuit board or the like due to the insertion of a foreign object.

Further, when the inspection window 50 is closed with the lid 60 after the control circuit board is inspected, the passage portions 53 are respectively closed by the back-side facing pieces 66.
For this reason, as in the previous explanation, even after the control circuit board is inspected, even if the inspection window 50 is closed with the lid 60, foreign matter such as a wire cannot be inserted through each passage portion 53.
(Procedure for mounting the control circuit board in the storage case)
Next, a procedure for mounting the control circuit board in the storage case 10 will be described.

In order to attach the control circuit board in the storage case 10, first, the control circuit board is attached in the fixed case 20.
Then, the cover case 30 is positioned on the open upper surface of the fixed case 20, and positioning is performed by inserting the positioning protrusions 22 and 22 into the positioning holes 31 and 31, and in the welding shaft insertion hole 36 of the welding piece 37. The fixing shaft 20 and the cover case 30 are integrated with each other by inserting the welding shaft 26 through the engagement shafts and engaging the engaging claws 33 and 33 in the mounting holes 23 and 23, respectively.

Thereafter, the welding shaft 26 is welded to the welding piece 37, and the storage case 10 is sealed.
(Procedure for primary closing of inspection window and removal of lid during inspection)
7 and 8, the procedure for closing the inspection window 50 with the lid 60 when the control circuit board is accommodated in the storage case 10 and the procedure for removing the lid 60 from the inspection window 50 during the inspection. explain.
7 and 8 are cross-sectional views taken along line BB in FIG. 1. FIG. 7 is a cross-sectional view of the storage case in which the inspection window is closed with a lid when the storage case is manufactured, and FIG. Sectional drawing of the storage case of the state which removes a cover body from an inspection window at the time of an inspection is shown, respectively. First, a procedure for temporarily closing the inspection window 50 of the storage case 10 with the lid 60 will be described with reference to FIG.

In order to temporarily close the inspection window 50 of the storage case 10 with the lid 60, the lid 60 is provided on the edge of the inspection window 50 where the passage portion 53 is not provided (upper edge in FIG. 7). The front facing piece 65 and the back facing piece 66 are faced, and the edge of the inspection window 50 is sandwiched between the front facing piece 65 and the back facing piece 66, and one side of the lid 60 is attached to the inspection window 50. .
Each projecting piece 64 is allowed to face each passing portion 53 of the other edge portion (lower edge portion in FIG. 7) of the inspection window 50, and the welding portion 25 is inserted into the welding shaft insertion hole 36 of the welding piece 37. The welding shaft 26 is inserted, and the claw piece 63 of the lid 60 is pushed into the inspection window 50 from the outside of the storage case 10 while being bent. At this time, since the tapered portion 69 of the claw piece 63 contacts the edge of the inspection window 50, the claw piece 63 can be easily pushed into the inspection window 50.

  When the claw piece 63 is pushed into the inspection window 50, the connecting portion 61 and the protruding portion 62 provided on the upper surface of the lid body 60 press against the surface of the storage case 10 at the peripheral edge of the inspection window 50, and the storage case 10 is further removed. The stepped portion 68 of the claw piece 63 is engaged with the primary side claw piece engaging portion 51 provided in the inspection window 50 so that the lid 60 is also attached to the outer side of the storage case 10. The inspection window 50 can be closed by the lid 60 so as not to come off.

Then, the welding shaft 26 is welded to the welding piece 37, and the inspection window 50 is sealed in a state where the inspection window 50 is closed by the lid body 60.
Next, a procedure for removing the lid 60 from the inspection window 50 in order to inspect the ROM 40 will be described with reference to FIG.
In order to remove the lid 60 from the inspection window 50, the connecting portion 61 and the protruding portion 62 are cut at the peripheral edge of the inspection window 50. For example, when the connecting portion 61 and the protruding portion 62 are formed of plastic, the connecting portion 61 and the protruding portion 62 can be cut using a nipper or the like.

When the connecting portion 61 and the protruding portion 62 are cut, the engagement of the lid body 60 with the front surface side of the storage case 10 is released. In this state, when the side of the lid 60 on which the claw piece 63 is provided is pushed into the storage case 10, the step 68 of the claw piece 63 comes off from the primary side claw piece locking portion 51, and the lid 60 is removed from the storage case 10. Can be dropped into. Then, the lid 60 dropped into the storage case 10 may be taken out.
After removing the lid 60 from the inspection window 50 in this way, the ROM 40 is inspected through the inspection window 50.

Next, a procedure for closing the inspection window 50 with the lid 60 after the inspection and a state in which the inspection window 50 is closed with the lid 60 will be described with reference to FIGS.
9 and 10 show a state in which the inspection window is closed by the lid after the inspection, FIG. 9 is a plan view showing the inspection window and the lid portion of the storage case, and FIG. -D sectional drawing is shown, respectively.

11 and 12 are cross-sectional views taken along line EE in FIG. 9. FIG. 11 is a cross-sectional view of the storage case in which the inspection window is closed by the lid after inspection, and FIG. 12 is an inspection window after the inspection. Sectional drawing of the storage case of the state which closed up with the cover body is shown, respectively.
First, a procedure for secondarily closing the inspection window 50 with the lid 60 will be described with reference to FIGS.
After the lid 60 is removed from the inspection window 50 and the ROM 40 is inspected, the inspection window 50 can be closed again with the lid 60, as shown in FIG. The front-side facing piece 65 and the back-side facing piece 66 provided on the lid 60 face the edge (the lower edge in FIG. 11), and the inspection window 50 is placed between the front-side facing piece 65 and the back-side facing piece 66. One side of the lid 60 is attached to the inspection window 50 by sandwiching the edge portion.

Then, the claw piece 63 faces the other edge of the inspection window 50 (upper edge in FIG. 11), and the claw piece 63 of the lid 60 is bent from the outside of the storage case 10 into the inspection window 50. Push in. At this time, since the tapered portion 69 of the claw piece 63 contacts the edge of the inspection window 50, the claw piece 63 can be easily pushed into the inspection window 50.
When the claw piece 63 is pushed into the inspection window 50, as shown in FIG. 12, the protruding piece 64 provided on the upper surface of the lid 60 presses against the surface of the storage case 10 at the peripheral edge of the inspection window 50 and stores it further. The claw piece 63 is prevented from entering the inside of the case 10, and the stepped portion 68 of the claw piece 63 engages with the secondary claw piece locking portion 52 provided in the inspection window 50, so that the lid 60 is attached to the storage case 10. The inspection window 50 can be closed again by the lid 60 so that it does not come off the outside.

In this state, as shown in FIGS. 9 and 10, each edge on the long side of the lid 60 is opposite to the inspection window 50 on the opposite side with respect to the state where the inspection window 50 is temporarily closed by the lid 60. It is located so that it may oppose the peripheral part. That is, the position of the lid 60 is upside down in the secondary closing shown in FIG. 9 as compared with the position of the lid 60 when the primary closing is shown in FIG.
Each passing portion 53 provided at the peripheral edge of the inspection window 50 is closed from the inside of the storage case 10 by each back-side facing piece 66 as shown in FIGS.

When the inspection window 50 is secondarily closed by the lid 60 in this manner, the lid 60 cannot be removed from the outside of the storage case 10 unless the projecting piece 64 is cut.
Therefore, the storage case can be sealed with the inspection window 50 closed by the lid 60.

It is a top view of the storage case which showed the inspection window and the cover part. It is a perspective view of a storage case. It is a perspective view of a lid. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. It is CC sectional drawing in FIG. It is sectional drawing of the storage case of the state which closed the test | inspection window with a cover body, when storing a control circuit board in a storage case. It is sectional drawing of the storage case of the state which removes a cover body from a test | inspection window at the time of a test | inspection. It is a top view of the storage case which showed the inspection window and lid part after an inspection. It is DD sectional drawing in FIG. It is sectional drawing of the storage case of the state which closed the test | inspection window with a cover body after test | inspection. It is sectional drawing of the storage case of the state which closed the test | inspection window with the cover body after the test | inspection.

Explanation of symbols

10 Storage case 20 Fixed case
21 Short side wall 22 Positioning protrusion
23 Mounting hole 24 Side wall on long side
25 Welding part 26 Welding shaft
30 Cover case 31 Positioning hole
32 Short side wall 33 Engaging claw
34 Step part 35 Taper part
36 Welding shaft insertion hole 37 Welding piece
38 Lid welding shaft 40 ROM
50 Inspection window 51 Primary claw piece locking part
52 Secondary claw piece locking part 53 Passing part
60 Lid 61 Connection
62 Projection 63 Claw piece
64 Projection piece 65 Front side facing piece
66 Back side facing piece 67 Cover body welding shaft insertion hole
68 Step 69 Taper

Claims (5)

A control circuit board provided with a control circuit for gaming machines;
A control case that houses the control circuit board and fixes the control circuit board to the gaming machine;
In the storage case of the control circuit board for gaming machines, which covers the open upper surface of the fixed case and has a cover case that is welded to the fixed case so as not to be removed.
In the above cover case,
An inspection window mounted on a control circuit board and facing a ROM storing a game control program;
A lid that closes the inspection window;
Between the lid and the inspection window,
While fixing the lid with the inspection window closed, and a connecting part that can be cut during inspection,
A claw piece that extends from the lid body and engages with the peripheral edge of the inspection window when the lid body is mounted on the inspection window again after the inspection, and the lid body is detachably fixed from the inspection window. A storage case for a control circuit board for gaming machines.   2. A storage case for a control circuit board for a gaming machine according to claim 1, wherein the connecting portion protrudes from the lid, and the protruding portion is welded to the surface of the cover case.   The peripheral edge of the inspection window is provided with a primary claw piece locking portion that engages with the claw piece before the inspection and a secondary side claw piece locking portion that engages with the claw piece after the inspection. A storage case for a control circuit board for a gaming machine according to claim 1 or 2. The lid is provided with a protruding piece adjacent to the nail piece, facing the nail piece and the thickness direction of the lid, and protruding from the lid,
4. A storage case for a control circuit board for a gaming machine according to claim 3, wherein a peripheral portion of the inspection window is provided with a passage portion adjacent to the primary claw piece locking portion and through which the protruding piece can pass. . The lid body is located on the edge opposite the side having the nail pieces, can be inserted with the peripheral edge of the inspection window, and includes a front side facing piece and a back side facing piece facing in the thickness direction of the lid,
5. A storage case for a control circuit board for a gaming machine according to claim 4, wherein the back-side facing piece closes a passage portion of the inspection window when mounted.

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