JP5339296B2 - Caulking structure and unauthorized opening prevention mechanism of board case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a caulking structure configured to prevent an engagement state from being released by an external operation, and a mechanism for preventing a board case from being illegally opened. <P>SOLUTION: The caulking structure K is configured to connect a first caulking portion 210 provided on a first connecting member 201 to a second caulking portion 202 provided on a second connecting member 202 by mutually engaging them in a case 203. The first caulking portion 210 has first lock claws 211-213 aligned substantially in a line from one end side of the case 203 to the other end side, and the second caulking portion 220 has second lock claws 211-223 aligned substantially in a line from one end side of the case 203 to the other end side to be engaged with the first lock claws 211-213. The first lock claws 211-213 and the second lock claws 221-223 are configured so that when the first caulking portion 210 and the second caulking portion 220 are engaged with each other, the direction of disengaging the first lock claws 211-213 from the second lock claws 221-223 is alternated. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

The present invention relates to a caulking structure suitable for preventing fraudulent acts on a substrate case that accommodates a control board and the like, and an unauthorized opening prevention mechanism for the substrate case provided with the caulking structure.

In gaming machines such as pachinko machines and slot machines, a control board for controlling the operation of the gaming machine is provided. For example, in a pachinko machine, a game board or the like is mounted on a storage frame on the back side of the front frame that is assembled so as to be openable and closable with respect to an outer frame, and a control board is attached to the game board. Similarly, in the slot machine, a control board is attached to the back side of the front mask or the inside of the cabinet.

These control boards are boards that control the operation of pachinko machines or slot machines, such as prize ball or medal payout control, opening / closing control of electric objects, reel rotation control, symbol combination occurrence probability control, etc. A ROM in which the control software is recorded is mounted and has a role as a central control device that controls the operation of the gaming machine (see, for example, Patent Document 1).

JP 2009-183788 A

By the way, the control board is accommodated in the board case so as not to be subjected to unauthorized modification such as replacement with a counterfeit ROM, and this board case is left with a trace when the case is opened (the presence or absence of fraud) Means for preventing unauthorized opening (or unauthorized attachment / detachment) that can be inspected is provided. As such an unauthorized opening prevention means, for example, the control board is housed in a board case composed of a case body member and a case lid member, and the case lid member is closed with respect to the case body member so that they cannot be easily opened. The case lid member (or case body member) and its engaging portion are engaged with each other by engaging the engagement portion formed on the case body member side with the engagement portion formed on the case lid member side. Various so-called caulking structures that make the case main body member and the case lid member inseparable from each other have been proposed and put into practical use unless the connecting portion connecting the two is separated using a tool such as a nipper.

A conventional caulking structure will be described with reference to FIG. This caulking structure is formed on the case lid member side and the lock claw 311 formed on the case body member side in the substantially sealed case 303 formed integrally with the case body member or the case lid member. The lock claw 321 is configured to be engageable, and the case main body member and the case lid member are connected so as not to be separated by bringing the lock claws 311 and 321 into an engaged state. However, in such a caulking structure of the conventional configuration, the unauthorized member 399 is inserted into the case 303, and either of the lock claws 311 and 321 is moved in the disengagement direction (the engagement of the lock claws with the unauthorized member 399). The lock claw 31 can be easily operated by operating in the release direction.
There is a problem that the engagement of 1,312 is released and the substrate case may be illegally opened.

The present invention has been made in view of such problems, and an object of the present invention is to provide a caulking structure in which the engaged state is not easily released even by an external operation, and a mechanism for preventing unauthorized opening of a substrate case.

In order to achieve such an object, the caulking structure according to the present invention accommodates the first caulking portion provided in the first connecting member and the second caulking portion provided in the second connecting member inside the case. The caulking structure is engaged in a state to connect the first connecting member and the second connecting member, and the first caulking portion is arranged in a plurality of rows arranged in a line from one end side to the other end side of the case. has a first locking portion, the second caulking portion is arranged in substantially one row from one end to the other end, it has a plurality of first locking portion engageable with a plurality of second locking portions, the first In a state where the caulking portion and the second caulking portion are engaged, the directions in which the respective engagements of the plurality of first lock portions and the plurality of second lock portions are released are configured to be alternate directions. .

And the 1st locking projection (for example, locking projections 211a-213a in an embodiment) projected and formed in the 1st locking portion, and the 2nd locking portion so that it may become the direction almost opposite to the 1st locking projection The first locking protrusions are configured so that the second locking protrusions (for example, the locking protrusions 221a to 223a in the embodiment) can be engaged with each other. The second locking portion is arranged so that the protruding directions of the second locking projections are staggered. The second locking portion has at least three first locking portions arranged to be configured to parts having only the same number as the first locking portion.

In addition, the board case unauthorized opening prevention mechanism according to the present invention includes a control board (for example, a pachinko machine PM in the embodiment) in which a case lid member is attached to the case body member and the operation of the gaming machine (for example, the pachinko machine PM in the embodiment) is controlled. For example, in the board case (for example, the main board case 90 in the embodiment) that accommodates and holds the main control board 31) in the embodiment and is attached to the gaming machine, the first caulking is formed on the case main body member as the first connecting member. A main body side engaging portion and a lid side engaging portion formed on the case lid member as the second connecting member and having a second caulking portion, the main body side engaging portion and the lid side engaging portion. When facing each other, at least one of the main body side engaging portion and the lid side engaging portion forms a case in which the plurality of first and second lock portions are accommodated in an engaged state, and the main body side Engagement part When the case lid member is mounted on the case main body member, the main body side engaging portion and the lid side engaging portion are engaged to form the case main body member and the case. The lid member is configured to be fixedly held in the closed state.

According to the caulking structure according to the present invention, a plurality of sets of lock portions that can be engaged with the first and second connecting members are provided, and the directions (release directions) for releasing the engagement are different directions. With only a simple configuration, the engaged state is hardly released even by an external operation using an unauthorized member or the like, and the first connecting member and the second connecting member can be reliably connected and held so as not to be detached. Further, because of such a simple configuration, it can be applied to various devices that require a caulking structure for connecting a plurality of members, and provides a low-cost caulking structure that is excellent in versatility. be able to.

Further, in the above-described invention, at least three or more first lock portions disposed so that the protruding directions of the first locking protrusions are staggered and the protruding directions of the second locking protrusions are staggered. A configuration in which the same number of second lock portions as the first lock portions are arranged to be engaged, that is, a configuration in which three or more sets of lock portions whose detachment directions are staggered is engaged, respectively. Thus, even if the lock part is operated to be disengaged from both directions on one end side and the other end side of the case, a set of lock parts located on the one end side and the other end side and at least one located on the intermediate part are provided. since the separating direction of the pair of locking portions of the pair differ, it is very difficult to release the set of engagement of all of the lock portion, more reliably leaving the first connecting member and the second connecting member It is impossible to connect and hold it.

Further, according to the unauthorized opening prevention mechanism of the substrate case according to the present invention, when the case main body member and the case lid member are connected and held, the plurality of first lock portions and the plurality of second lock portions are engaged. Since each of the disengagement directions is a staggered direction, even if an unauthorized member is inserted from the side wall of the main body side engaging portion or the lid side engaging portion to access each lock portion , all of these lock portions It is very difficult to release the engagement of the set, and illegal acts on the board case can be surely prevented.

It is a perspective view which shows the crimping structure which concerns on one Embodiment of this invention. It is a perspective view which shows the engagement state in the said crimping structure. The modification of the lock nail | claw which comprises the said crimping structure is shown. It is a front view of the pachinko machine provided with the unauthorized opening prevention device to which the caulking structure according to the present invention is applied. It is a perspective view of the back surface side of the game board provided in the said pachinko machine. It is a disassembled perspective view of the main board | substrate assembly provided in the said pachinko machine. It is a top view of the main board assembly. It is a top view of a case main body member. It is an enlarged view of the principal part of a case main body member. It is a figure which shows a case cover member, Comprising: (a) is a top view, (b) is a bottom view. It is a perspective view which shows the main body side engaging part and lid side engaging part of an unauthorized opening prevention mechanism. It is a figure for demonstrating when a main body side engaging part and a lid side engaging part are in a non-engagement state. It is a perspective view of the main board assembly provided with the unauthorized opening prevention mechanism in a second embodiment. It is a disassembled perspective view of the main board assembly in a second embodiment. It is a perspective view which shows the main body side engaging part and cover side engaging part in 2nd embodiment. It is a perspective view which shows the crimp structure of the conventional unauthorized opening prevention mechanism.

Hereinafter, preferred embodiments of the present invention will be described. First, a basic configuration of the caulking structure according to the present embodiment will be outlined with reference to FIGS.

As shown in FIG. 1, the caulking structure K is provided in the first caulking portion 210 provided in the first connecting member 201 and the second connecting member 202 in a case 203 having a rectangular box shape, for example. By engaging the second caulking portion 220, the first connecting member 201 and the second connecting member 202 configured to be movable in the left-right direction in FIG.

As described above, the first and second connecting members 201 and 202 are relatively movable in the left-right direction in FIG. 1 (the direction in which the first and second connecting members 201 and 202 approach or separate from each other). In the vicinity of a predetermined position where the portion 210 and the second caulking portion 220 are engaged, the first and second connecting members 201 and 202 are prevented from relatively moving in a further closer direction by a stopper means (not shown). Is done.

The first connecting member 201 is a member having a rectangular parallelepiped shape, for example, and a plurality of (three in this embodiment) first lock claws 2 extending in the horizontal direction from the right side surface thereof to form the first caulking portion 210.
11, 212, and 213 protrude in a cantilever manner along the vertical direction.

The first lock claws 211 to 213 include flexible rod-shaped arm portions 211a to 213a and locking claw portions 211b to 213b formed integrally with the tip portions of the arm portions 211a to 213a. It is configured. Of these three first lock claws 211 to 213, the locking claw portions 211b and 213b of the first lock claws 211 and 213 located at both upper and lower ends are substantially projected toward the front side with respect to the paper surface of FIG. The locking claw portion 212b of the first lock claw 212 having a claw shape and located in the center protrudes in the depth direction (almost opposite to the locking claw portions 211b and 213b) with respect to the paper surface of FIG. It has a substantially claw shape. In this way, the first lock claw 211-
Although the arm portions 211a to 213a are arranged substantially parallel to each other in the vertical direction, the locking claws 211b to 213b are formed so as to face in alternate directions. Further, the locking claw portion 211b
˜213b includes an inclined surface 21 inclined so that the thickness increases from the distal end side toward the proximal end side.
1c to 213c and locking surfaces 211d to 213d formed on the base end side are provided.

On the other hand, the second connecting member 202 is a member having a rectangular parallelepiped shape, for example, and a plurality of (similarly three) second lock claws 22 extending in the horizontal direction from the left side surface thereof to form the second crimping portion 220.
1, 222, and 223 are provided in a cantilevered manner along the vertical direction at a pitch corresponding to the arrangement pitch of the first lock claws 211, 212, and 213.

The second lock claws 221 to 223 have flexible rod-shaped arm portions 221a to 223a and locking claw portions 221b to 223b formed integrally with the tip portions of the arm portions 221a to 223a. It is configured. Of these three second lock claws 221 to 223, the locking claw portions 221b and 223b of the second lock claws 221 and 223 located at the upper and lower ends (opposing the first lock claws 211 and 213) are shown in FIG. The engaging claw portion 222b of the second lock claw 222 having a substantially claw shape protruding in the depth direction with respect to the paper surface and located at the center (opposite to the first lock claw 212) is formed with respect to the paper surface of FIG. And has a generally claw shape that protrudes toward the front (substantially opposite to the locking claws 221b and 223b). As described above, the second lock claws 221 to 223 have the locking claw portions 221b while the arm portions 221a to 223a are arranged substantially in parallel in the vertical direction.
˜223b are formed to face in alternate directions. Further, the locking claws 221b to 223
In b, inclined surfaces 221c-2 inclined so as to increase in thickness from the distal end side toward the proximal end side.
23c and locking surfaces 221d to 223d formed on the base end side are provided.

In the caulking mechanism K configured as described above, in order to connect the first connecting member 201 and the second connecting member 202 in the case 203, the first connecting member 201 and the second connecting member 202 are moved in the left-right direction (to each other). The first lock claw 211 to 213 and the second lock claw 221 to 223 are engaged with each other by relatively moving in the approaching direction).

At this time, as the first connecting member 201 and the second connecting member 202 approach each other, the inclined surfaces 211c to 213c of the first lock claws 211 to 213 and the inclined surfaces 221c to 223c of the second lock claws 221 to 223 contact each other. The locking projections 211b to 213b of the first locking claws 211 to 213 and the locking projections 221b to 223b of the second locking claws 221 to 223 are in contact with each other along the inclined surface.
Therefore, both arm portions 211a to 213a and 221a to 223a are elastically deformed outward. Then, when the contact between the inclined surfaces is separated, the first lock claws 211 to 213 and the second lock claws 221 to 223 that have been bent outward are elastically restored inward, and the first lock claws are restored. The locking protrusions 211b to 213b of 211 to 213 and the second lock claw 22
The engaging protrusions 221b to 223b of 1 to 223 are engaged with each other by bringing the engaging surfaces into contact with each other. Therefore, by engaging the first lock claws 211 to 213 and the second lock claws 221 to 223,
The first connecting member 201 and the second connecting member 202 are connected.

If it will be in this state, even if it tries to space apart the 1st connection member 201 and the 2nd connection member 202, the locking surfaces of the lock claws 211-213, 221-223 will not contact and will not separate. For example, as shown in FIG. 2, a hole is formed in the case upper wall 203a, and a long rod-shaped illegal member 299 is inserted into the case 203 so that the first lock claws 211 to 213 and the second lock claws 22 are inserted.
Even if the engagement with 1 to 223 is disengaged, the respective locking protrusions 211b to 213b and 221b
... 223b are formed so as to face in alternate directions and are located at the upper and lower ends of the lock claws 211,2.
The direction (release direction) Ya for releasing the engagement of 13, 221, 223 and the direction (release direction) Yb for releasing the engagement of the lock claws 212, 222 located in the center are combined in substantially opposite directions. Therefore, even if it is attempted to displace the lock claws 211 to 213 and 221 to 223 in one of the detaching directions using the unauthorized member 299, the first and second lock claws 211 to 213, 2 are used.
The set of any one of 21 to 223 is biased in the engaging direction. Therefore, the lock claws 211 to 213 and 221 to 223 cannot be detached, and the first connecting member 201 and the second
There is no possibility that the connection with the connection member 202 is removed.

As described above, according to the caulking structure K configured as above, the first and second connecting members 201,
A direction in which a plurality of lock claws that can be engaged with 202 are disposed and the engagement is released (separation direction)
With a simple configuration in which the directions are different from each other, the engaged state is hardly released even by an external operation, and the first connecting member 201 and the second connecting member 202 can be securely connected so as not to be detached. it can. Further, because of such a simple configuration, it can be applied to various devices that require a caulking structure for connecting a plurality of members, and provides a low-cost caulking structure that is excellent in versatility. be able to.

In addition, about the lock claw which comprises the crimping structure K, it is preferable to provide 3 or more sets.
In the case of two sets of lock claws, for example, in FIG. 2, the unauthorized members 299 are inserted one by one from both the upper and lower directions of the case upper wall 203a and the case lower wall 203b, and are engaged by these unauthorized members 299. If you operate the set of lock pawls in the release directions Ya and Yb,
This is because the engagement of all the two sets of lock claws may be released. On the other hand, as illustrated in the above-described embodiment, in the case of the configuration of three sets of lock claws, that is, two sets of lock projections on the upper and lower ends and one set of lock projections on the center. Even if it is intended to remove all three sets of locking claws from each of the upper and lower directions by using an improper member, by adopting a configuration in which the directions are different from each other (a configuration in which the separation directions are different). Since the lock claws of the set are operated in the engaging direction, it is very difficult to release the engagement. Of course, it is good also as a structure of four or more sets of lock claws, and the same effect can be acquired also in this case by forming the latching protrusions of the lock claws in alternate directions.

Further, in the above-described embodiment, when the lock claw is operated in the horizontal direction (directions Ya and Yb), the separation is restricted, but in a direction orthogonal to the lock claw (direction in which the lock claw is arranged). A means for restricting separation may be provided. For example, as shown in FIG. 3 (a), one lock claw 211 (221) is connected to both arms 211a (2) from both edges of the locking surface 211c (221c).
21a) is provided with a pair of outer guard ribs 211f (221f), thereby preventing the other lock claw 221 (211) from detaching from one lock claw 211 (221) in the vertical direction. Can do. Further, as shown in FIG. 3B, a locking projection 211g is provided on the locking surface 211c of one lock claw 211, and the locking surface 2 of the other lock claw 221 is provided.
21c is provided with a locking recess 221h, and the locking projection 211g and the locking recess 221h are fitted in a state in which these lock claws 211 and 221 are engaged, thereby preventing vertical separation. In addition, the engagement state between the lock claws 211 and 221 is more firmly maintained.

Furthermore, in the above-described embodiment, the first connecting member 201, the second connecting member 201, and the case 203 are configured as separate members, but the present invention is not limited to this.
For example, the first connecting member 201 and the second connecting member 202 are formed with concave grooves on the side surfaces facing each other, and the first and second lock claws are provided in the grooves. The first connecting member 201 and the second connecting member 202 are relatively moved in the approaching direction,
If the opposing side surfaces come into contact with each other when both lock claws are engaged to form an accommodation space therein, the first and second connecting members 201 and 202 can also serve as the case 203. Further, for example, the second connecting member 203 is divided into two members to form a twenty-first connecting member and a twenty-second connecting member, and a locking claw of the first connecting member 201 and a locking claw of the twenty-first connecting member and the twenty-second connecting member; It is good also as a structure which connects a 1st connection member and a 21st and 22nd connection member by engaging each.

Next, FIG. 4 shows a front view of a pachinko machine PM as a representative example of a gaming machine equipped with an unauthorized opening prevention mechanism to which the caulking structure K is applied, and FIG. 5 shows a rear perspective view of the pachinko machine PM. The overall configuration of the pachinko machine PM will be outlined with reference to this figure.

In the pachinko machine PM, a front frame 2 that is configured to have a rectangular frame size and forms an open / close mounting frame is formed on the front surface of the outer frame 1 that forms a vertical fixed holding frame that is configured to have an outer rectangular frame size. The upper and lower hinge mechanisms 3a and 3b disposed on the front left edge of the front side are attached so as to be able to be opened and closed laterally and attached and detached, and using a locking device 4 called a double lock provided on the front right edge. It is always kept in a closed state engaged and connected to the outer frame 1.

On the front side upper part of the front frame 2, a rectangular glass door 5 and a ball tray unit 6 that match the upper front area of the front frame 2 are provided using hinge mechanisms 7 a, 7 b, 7 c provided on the left side of the front side. It is assembled so as to be openable / closable and detachable sideways, and is always held in a closed state covering the front surface of the front frame 2 using the locking device 4. An operation handle 8 for performing a game ball launching operation is provided at the lower right side of the front surface of the ball tray unit 6, and a speaker 9 for generating sound effects is provided on the left side of the front surface of the operation handle 8. A storage frame (not shown) for detachably storing the game board 10 is provided on the upper part of the front frame located behind the glass door 5, and the game board 10 configured with a predetermined gauge setting in the storage frame. Is held in a detachable manner, and the game area PA in front of the game board 10 can be faced through the glass door 5 that is always held closed.

The game board 10 is configured with a decorative board 11 (also referred to as a veneer board) in which cells of a predetermined design are attached to the surface of a laminated plywood as a substrate. An inner and outer guide rails 12 are fixed in an arc shape on the front surface of the decorative board 11, and a substantially circular game area PA is defined on the inner side surrounded by the guide rails 12, and a number of games are provided in the game area PA. In addition to the nails and the windmill 13, there are provided various prize-winning tools 14 such as a general prize-winning tool, a starting tool, and a big prize-winning opening, and an image display device 15 for displaying predetermined symbols according to the progress of the game. . At the lower end of the game area PA, there is provided an out port 16 through which a game ball (referred to as “out ball”) that has fallen to the lower end of the game area PA without winning the winning device 14 is discharged to the back surface of the game board 10. Yes. A game ball (referred to as a “safe ball”) dropped into each winning device 14 is detected by a winning port switch or a start port switch provided in these winning devices 14 and passes through the decorative board 11 (see FIG. It is discharged to the back surface of the game board 10 through (not shown). Further, the out ball collected at the out port 16 is the decorative board 1.
1 is discharged to the back side of the game board 10 through an out-ball passage (not shown) penetrating through 1. Each part of the glass door 5 and the game board 10 is provided with an electric decoration device 17 using a light source such as an LED or a lamp for visually producing game development.

The pachinko machine PM configured as described above is used in a game in which the front frame 2, the glass door 5, and the ball tray unit 6 are all closed and locked, and the game ball is stored in the ball tray unit 6. The game is started by rotating the operation handle 8. When the operation handle 8 is turned, the game ball stored in the ball tray unit 6 is changed to 1 by a game ball launcher (not shown).
Each ball is launched into the game area PA of the game board 10, and then a pachinko game is developed.

In such a pachinko machine PM, the main substrate assembly is provided with an unauthorized opening prevention mechanism. Hereinafter, a first embodiment of an unauthorized opening prevention mechanism to which the caulking structure K is applied will be described.

As shown in FIG. 5, on the back side of the game board 10, the display is displayed on the main board assembly 30 in which the main control board 31 (see FIG. 6) that controls the entire pachinko machine PM is accommodated, or on the image display device 15. An image board assembly 40 that houses an image control board (not shown) for controlling the image to be displayed is attached. In the following description, the front and rear directions, the left and right directions, and the up and down directions indicated in the drawings will be referred to as the front and rear directions, the left and right directions, and the up and down directions, respectively.

An opening 18 for attaching the image display device 15 is formed at the center of the game board 10, and image board assembly attachment parts are provided on the left and right edges on the back side of the game board 10 so as to sandwich the opening 18. 19a and 19b are arranged. A total of four mounting projections 40a and 40b are formed on the upper and lower sides of the left and right sides of the image board assembly 40 (only three in total are shown in FIG. 5), and these mounting projections 40a and 40b are screwed or the like. In the image board assembly mounting portion 19
The image board assembly 40 is fixed to the game board 10 by being attached to a and 19b.

In addition, the main board assembly mounting portion 2 is provided on the left and right edges on the back side of the lower part of the game board 10.
0a and 20b are disposed, and the main board assembly 30 is attached to the main board assembly attachment portions 20a and 20b. The main board assembly mounting portions 20a, 20
b is formed so as to protrude rearward from the image board assembly mounting portions 19a and 19b, and the upper part of the main board assembly 30 is the image board assembly 40 in the rear view.
It is attached to the game board 10 so that the lower part of may be covered from back. In this way, the main substrate assembly 30 covers a part of the image substrate assembly 40 (partly overlaps in the rear view).
By arranging in this way, these assemblies 30 and 40 can be arranged on the back side of the game board 10 without increasing the vertical dimension of the game board 10 with respect to the increase in size of the image board assembly 40. it can.

Next, the main substrate assembly 30 will be described with additional reference to FIGS. The main board assembly 30 includes a main control board 31 that comprehensively controls the operation of the pachinko machine PM, and a main board case 90 (see FIG. 7) that accommodates the main control board 31 therein. Further, the main board case 90 includes a case body member 50 that is attached to and detached from the back side of the game board 10 and a case lid member 60 that is detachably attached to the case body member 50.

The main board assembly 30 is configured such that the case lid member 60 can be attached to the case body member 50 in a state where the main control board 31 is attached to the inner surface side of the case lid member 60. The main board assembly 30 is fixed to the main board assembly mounting portions 20a and 20b by a left ny latch (registered trademark) 36 attached to a left side fixing portion 58 extending outward from the left side portion of the case body member 50, and a case lid. A right Nylatch (registered trademark) 37 attached to a right side fixing part 68 extending outward from the right side part of the member 60 is used.

As shown in FIG. 6, the main control board 31 has a substantially rectangular plate shape, and is provided with an electronic device 32 such as a CPU with a built-in ROM and RAM arranged at the center, and on the left and right. , Etc., and a plurality of wiring patterns disposed on both sides (
(Not shown) and the like. In the four corners of the main control board 31, board mounting holes 34, 3
Are inserted into the substrate mounting holes 34 and screwed into the substrate mounting portion 67 (see FIG. 10) formed in the case lid member 60. And are configured to be fastened with screws.

The case main body member 50 has a rectangular box shape with an opening on the rear side in a state where the main board case 90 is attached to the game board 10, and is a transparent resin material such as ABS resin or polycarbonate (PC). Are molded integrally by molding means such as injection molding. As shown in FIG. 6, reinforcing ribs 51 a are formed vertically and horizontally on the inner surface side bottom 51 of the case body member 50 to improve the strength of the case body member 50.

A plurality of lid member attachment grooves 54 are formed in the side wall portions (in FIG. 6, rear wall portions extending rearward from the upper and lower edges of the bottom portion 51) 53, 53. Describing in detail with reference to FIG. 9, the side wall 53 includes a first wall 53 a extending rearward from the bottom 51, and the first wall 53 a.
The second wall 5 that extends outward from the wall 53a and extends rearward from the rear end side of the first wall 53a.
3b, and the inner surface side of the case main body member 50 is formed in a step shape. The lid member attaching groove 54 is formed in the second wall portion 53b and is formed so that the rear side and the inner surface side of the case main body member 50 are opened. The lid member mounting groove 54 includes an insertion groove portion 54a that opens to the rear and the inner surface side, and a locking groove portion 54b that extends to the left and opens to the inner surface side. When viewed, the side wall 53 is formed as an L-shaped groove.

Further, a lid member pressing wall 52 is formed to extend rearward from the bottom 51 in a plate shape so as to face each of the lid member mounting grooves 54 in parallel with the inner wall surface of the first wall portion 53a. The lateral width of the lid member pressing wall 52 is formed to be approximately the same as the lateral width of the lid member mounting groove 54, and when viewed from above or below in the state of FIG. 52 and the lid member mounting groove 54 are arranged so as to overlap.

The case lid member 60 has a rectangular box shape covering the opening of the case body member 50,
It is integrally molded by a molding means such as injection molding using a transparent resin material such as ABS resin or polycarbonate (PC). A plurality of locking projections 62 projecting outward (vertical direction in FIG. 6) are formed on the side wall 69 extending forward from the vertical edge of the case lid member 60. The locking projections 62 are formed in the same number as the lid member mounting groove 54 described above, and the arrangement interval thereof also corresponds to the lid member mounting groove 54. Further, as shown in FIG. 10, a pressing projection 61 projecting inward is formed on the inner surface side of the side wall 69 in correspondence with each locking projection. The pressing protrusion 61 is formed on the case body member 50 with respect to the locking protrusion 62.
The case lid member 60 is formed so as to be shifted in the direction opposite to the sliding direction when the case lid member 60 is attached.

Therefore, when attaching the case lid member 60 to the case body member 50, the locking projection 62 is inserted into the insertion groove portion 54a of the lid member attachment groove 54 from the rear, and then the case lid member 60 is moved in the left-right direction (this In the embodiment, the locking projection 62 is slid in the left direction).
Is inserted into the locking groove 54b, and the locking projection 62 and the lid member mounting groove 54 are fitted.

At this time, in a state where the locking projection 62 is inserted into the insertion groove 54a of the lid member attachment groove 54,
The pressing protrusion 61 is located on the right side of the lid member pressing wall 52. From this state, the case lid member 6
0 is slid to the left with respect to the case body member 50, and the locking projection 62 is locked to the locking groove 54.
As it is inserted into b, the side wall 69 is pushed outward. And the locking projection 6
2 is completely inserted into the locking groove 54a, the outer surface of the side wall 69 and the second wall 53b.
The pressing projection 61 is sandwiched between the second wall portion 53 b and the lid member pressing wall 52.

When the case main body member 50 and the case lid member 60 are configured as described above, when the case lid member 60 is attached to the case main body member 50, the locking projection 62 is fitted to the lid member attachment groove 54, and thus the case The lid member 60 is restricted from moving rearward relative to the case body member 50 (movement for removing the case lid member 60 from the case body member 50). The case lid member 6
The 0 side wall 69 is pressed against and closely contacts the inner surface of the second wall 53b of the case body member 50 by the pressing protrusion 61 and the lid member pressing wall 52, so that the side wall 69 is pushed inward. The locking projection 62 cannot be removed from the lid member mounting groove 54. Moreover, since there is almost no clearance between the side wall part 69 and the 2nd wall part 53b, a driver etc. are inserted and the internal main control board 31 is operated, and the latching protrusion part 62 or the lid member attachment groove 54 is inserted. You can't even shave.

Here, a main body side temporary fixing portion 55 is formed at the left end portion of the case main body member 50, and a lid side temporary fixing portion 63 is formed on the left end side of the case lid member 60 correspondingly. When the case lid member 60 is attached to the case body member 50, that is, when the case lid member 60 is slid and attached to the case body member 50 in the left direction, these body side temporary fixing portions 55 are attached. And the lid-side temporary fixing portion 63 are engaged with each other, and the case lid member 60 is restricted from sliding to the right with respect to the case body member 50. Note that the case body member 50 and the case lid member 60 are formed of a resin material as described above, and the body side temporary fixing portion 55 and the lid side temporary fixing portion 63 are formed thin, so that it is easy. Can be bent.
Therefore, by bending the left end side of the lid-side temporary fixing portion 63 away from the main-body-side temporary fixing portion 55, the engagement between the main-body-side temporary fixing portion 55 and the lid-side temporary fixing portion 63 is released, and the case The case lid member 60 is slid rightward with respect to the main body member 50, and the case lid member 60 is moved to the case main body member 5.
Can be removed from zero.

In this way, the main board case 90 in which the main control board 31 is accommodated is divided into the case main body member 50 and the case lid member 60 that can be separated from each other, thereby attaching the main control board 31 to the case lid member 60. At this time, since the opening of the case lid member 60 can be mounted on a work desk or the like with the opening facing upward, the mounting work is facilitated and the assembly work efficiency is improved. Also, when attaching the case lid member 60 to the case main body member 50, the case lid member 60 can be attached only by sliding movement, so this operation is also easy.

As described above, since the main control board 31 is stored in the main board case 90 (the case main body member 50 and the case lid member 60), an illegal act on the main control board 31 can be prevented. However, when the case lid member 60 is attached to the case body member 50, the body side temporary fastening portion 55 and the lid side temporary fastening portion 63 are merely engaged, and the case body member It is easy to remove the case lid member 60 from 50. Therefore, in order to prevent the case lid member 60 in the closed state from slidingly moving with respect to the case body member 50 and preventing unauthorized operation, the main substrate case 90 of the main substrate assembly 30 is provided with an unauthorized opening prevention mechanism. Yes. A first embodiment of the unauthorized opening prevention mechanism to which the caulking structure K is applied will now be described with reference to FIG.

As shown in FIG. 6 and the like, the unauthorized opening prevention mechanism H1 is connected to the left end side of the case cover member 60 and the four main body side engaging portions 70 integrally formed by connecting to the left end side of the case main body member 50. Thus, the four lid side engaging portions 80 formed integrally are mainly configured.

The main body side engaging portion 70 includes a main body side accommodating portion 74 formed integrally with the case main body member 50, and a plurality of (three in this embodiment) main body side locks formed in the main body side accommodating portion 74. Nail 71
, 72, 73. The main body side accommodating portion 74 is integrally formed with the case main body member 50 (using a transparent resin material) in the shape of a rectangular parallelepiped box whose right side is open at the end of the case main body member 50, and the main body side housing portion 74 is formed inside the main body side accommodating portion 74. A side accommodation space 75 is formed. In the main body side accommodation space 75, three main body side lock claws 71 to 73 project in a cantilever manner along the front-rear direction and extend in the horizontal direction from the left side surface of the main body side accommodation portion 74.

The main body side lock claws 71 to 73 have flexible rod-shaped arm portions 71a to 73a and locking claw portions 71b to 73b integrally formed at the tip portions of the arm portions 71a to 73a. It is configured. Of the three main body side lock claws 71 to 73, lock claws 71 located at both front and rear ends,
The locking claw portions 71b and 71b of 73 have a generally claw shape protruding upward, and the locking claw portion 72b of the locking claw 72 located at the center faces downward (the locking claw portions 71b and 73b and Has a generally claw shape projecting in a substantially opposite direction. Thus, the main body side lock claws 71 to 73 are formed so that the locking claw portions 71b to 73b face in alternate directions.

On the other hand, the lid-side engaging portion 80 includes a rectangular plate-like base portion 84 that closes the right-side opening of the main body side housing portion 70 when the case lid member 60 is attached to the case main body member 50, and the left side surface of the base portion 84. Plurally extending in the horizontal direction (three in the present embodiment corresponding to the main body side lock claws 71 to 73)
Cover side lock claws 81, 82, 83. The lid-side lock claws 81 to 83 have flexible rod-shaped arm portions 81a to 83a and locking claw portions 81b to 83b integrally formed at the tip portions of the arm portions 81a to 83a. The main body side engaging portion 70 is provided in a cantilevered manner from the left side surface of the base portion 84 in the front-rear direction at a pitch corresponding to the arrangement pitch of the main body side locking claws 71 to 73. Of these three lid-side lock claws 81-83, the locking claws 81b, 83b of the lock claws 81, 83 located at both front and rear ends have a substantially claw shape protruding downward and are located at the center. The locking claw portion 82b of the locking claw 82 has a substantially claw shape that protrudes upward (substantially opposite to the locking claw portions 81b and 83b). Therefore, when the case lid member 60 is attached to the case body member 50, the lid side lock claws 81 to 83 are engaged with the corresponding body side lock claws 71 to 73, respectively.

Further, a side wall 69 that forms an area for housing the main control board 31 in the case lid member 60.
And the base portion 84 of the lid side engaging portion 80 are connected by two lid side connecting portions 89. The lid side connecting portion 89 is configured to be cuttable, and the lid side engaging portion 80 can be separated from the case lid member 60 by cutting the lid side connecting portion 89.

In the unauthorized opening prevention mechanism H1 configured in this way, the case lid member 60 is slid relative to the case body member 50 as described above, and the body side engaging portion 70 and the lid side engaging portion 80 are moved. When facing and overlapping, the main body side lock claws 71 to 73 and the lid side lock claws 81 to 81
83 is engaged, the main body side engaging portion 70 and the lid side engaging portion 80 are connected, and the case main body member 50 is connected.
The case lid member 60 is restricted from sliding in the right direction (separating direction). Therefore, the state where the case lid member 60 is attached to the case body member 50, that is, the locked state is maintained. Thus, the main body side engaging portion 70 and the lid side engaging portion 80 can be easily connected by adopting a configuration in which the main body side locking claws 71 to 73 and the lid side locking claws 81 to 83 are engaged. The case body member 50 and the case lid member 60 can be easily coupled and held in the closed state. Therefore, unauthorized access to the inside from the outside of the main board case 90 can be effectively prevented.

The case body member 50 and the case lid member 6 are thus protected by the unauthorized opening prevention mechanism H1.
0 is coupled and held in a closed state, the main body side lock claws 71 to 73 and the lid side lock claws 81 to 8
3 is engaged, the disengagement direction (the direction in which the lock pawl is disengaged) is almost reversed. Therefore, a hole is made in the side wall of the main body side accommodating portion 74 and an unauthorized member is inserted. Lock claw 71-7
Even if 3, 81 to 83 are accessed, the main body side lock claws 71 to 73 and the lid side lock claws 81 are provided.
It is very difficult to release all the engagements with ˜83. Therefore, in order to open the main substrate case 90 (main substrate assembly 30), it is necessary to cut the lid side connecting portion 89 and separate the lid side engaging portion 80 from the case lid member 60. Therefore, after the main board case 90 is opened, the cutting trace of the lid side connecting portion 89 remains clearly, so that it is possible to detect unauthorized opening at an early stage and to effectively prevent unauthorized actions.

Four main body side engaging portions 70 and four lid side engaging portions 80 are provided on the left end sides of the case main body member 50 and the case lid member 60, respectively. When the case body member 50 and the case lid member 60 are joined and held in a closed state by connecting the joint portion 80, either one of the body side engaging portion 70 and the lid side engaging portion 80 is connected. That's fine. Therefore, as schematically shown in FIG. 12, the body side engagement portion 70 and the lid side engagement portion 80 set in the non-engaged state (unlocked state) and the lid side engagement portion 80 (the other three sets) Lock claw 71-73
The locking pieces 79 are previously engaged with the sides (or the lid side locking claws 81 to 83), respectively, and the locking projections 71b to 73b of the main body side locking claws 71 to 73 and the lid side locking claws 81 to 81 are engaged.
It is only necessary that the locking projections 81b to 83b of 83 are not engaged (FIG. 12 shows only the lock claws 73 and 83 being disengaged). Therefore, even if the lid side connecting portion 89 of the lid side engaging portion 80 engaged with the main body side engaging portion 70 is cut, the other three sets can still be used. Even when the main substrate case 90 in the closed state (locked state) is opened, the main substrate case 90 is again closed (locked) using another set of the main body side engaging portion 70 and the lid side engaging portion 80. State). Further, it is possible to easily confirm how many times the main substrate case 90 has been opened by the number of the lid-side engaging portions 80 cut off. When the main board case 90 is used only once, the main body side engaging portion 70 and the lid side engaging portion 80 are set to 1
Since it is only necessary to provide a set, it is not necessary to provide the locking piece 79 as described above.

Further, as described above, the main board case 90 (the case main body member 50 and the case lid member 6).
Although a transparent resin material is used as the material of 0), it is preferable to use an ABS resin among them. As a result, when the cutting operation is performed on the member as described above, the butadiene, which is a component of the ABS resin, has a rubber property, and the member is easily whitened without being cracked. The effect is easy. Here, it is preferable that the locking piece 79 is formed of a resin of a different color (for example, white), and the case main body member 50 and the case lid member 60 are formed of a transparent resin. It can be easily identified from the outside of the main substrate case 90 whether the set of the cover 70 and the lid-side engaging portion 80 is in the engaged state or in the disengaged state.

Next, a second embodiment of the unauthorized opening prevention mechanism to which the caulking structure K is applied will be described with reference to FIG.
A description will be given with reference to FIGS. The unauthorized opening prevention mechanism H <b> 2 of the second embodiment is provided in the main board assembly 130. Hereinafter, the main substrate assembly 130 will be described with reference to FIG.
This will be described with reference to FIG.

The main board assembly 130 is a main control board 1 that comprehensively controls the operation of the pachinko machine PM.
31 and a main board case 190 that accommodates the main control board 131 therein.
Further, the main board case 190 is attached to and detached from the back side of the game board 10.
A case lid member 160 that is attached to the case main body member 150 so as to be openable and closable, and an inner cover 135 that covers the back side of the main control board 131. The main control board 131 and the inner cover 135 are on the inner surface side of the case lid member 160. The case lid member 160 is configured to be attachable to the case main body member 150 while being attached to the case body.

As shown in FIG. 14, the main control board 131 includes electronic components such as a CPU 132 disposed in the center and connection connectors 133 disposed on the left and right. Substrate attachment holes 131 a are formed at the four corners of the main control substrate 131, and are fitted with substrate attachment portions (not shown) formed in the case lid member 160. Pin holes 131b are formed at three positions near the edge of the main control board 131 so as to be fitted with the positioning pins 136 of the inner cover 135.

The case main body member 150 has a rectangular box shape having an opening on the rear side in a state where the main board case 190 is attached to the game board 10 and is made of a transparent resin material such as ABS resin or polycarbonate (PC). It is integrally molded by molding means such as injection molding. Hinge shafts 151 and 151 are formed at the left end of the case body member 150, and the case lid member 160.
The hinge arm 161 is hinge-coupled to each other. Case body member 15
Locking arms 152 and 152 projecting forward are formed on the outer surfaces of the upper and lower side walls of 0, and are locked to the protrusions 165 and 165 of the case lid member 160, respectively.

The case lid member 160 has a rectangular box shape covering the opening of the case body member 150,
It is integrally molded by a molding means such as injection molding using a transparent resin material such as ABS resin or polycarbonate (PC). Boss-shaped board mounting portions (with screw holes) (not shown) are formed at the four corners on the back side of the case lid member 160, and the main control board 131 and the inner cover 135 are fixed by screws with board mounting screws 139. The lid member 160 is attached to the inner surface side. A plurality of connector openings 163 are formed in the case lid member 160. As shown in FIG. 13, the connection connector of the main control board 131 with the case lid member 160 mounted on the case body member 150 side. 133 is configured to be exposed to the outside.

A hinge arm 161 is formed at the left end of the case lid member 160, and the case lid member 160 engages the hinge shaft 151 with respect to the case body member 150 by engaging with the hinge shaft 151 of the case body member 150. It is attached so that it can swing open and close as the center. Further, on the outer surfaces of the upper and lower side walls of the case lid member 160, protrusions 165 that can be locked with the locking arms 152 of the case main body member 150 are formed.

The inner cover 135 has a rectangular plate shape matching the shape of the main control board 131, and AB
It is integrally formed using a transparent resin material such as S resin or polycarbonate (PC). Positioning pins 136 are formed at three positions in the vicinity of the edge of the inner cover 135 and are respectively fitted with the pin holes 131b of the main control board 131 so that the inner cover 135 just overlaps the back side of the main control board 131. It is like that. Inner cover attaching portions 137 are formed at the four corners of the inner cover 135 with screw passage holes 137a, and are fixed to the substrate attaching portions (not shown) of the case lid member 160 by the substrate attaching screws 139. . And the inner cover 13
5 is placed on the back side of the main control board 131 so that the board mounting screw 139 is passed through the screw passage hole 137a of the inner cover 135 and the board mounting hole 131a of the main control board 131 so that the case lid member 160 The main control board 131 and the inner cover 135 are attached to the inner surface side of the case lid member 160 by fixing the screws to the board attaching portion.

When the case lid member 160 is overlaid (swinged) on the case body member 150 to be in a closed state, the locking arm 152 is locked to the protrusion 165, and the case lid member 160 is moved to the case body member 150. Is attached and held in a closed state. In this way, when the case lid member 160 is mounted in a closed state covering the opening of the case body member 150, the locking arm 152 is only locked to the protrusion 165, and the case lid member 160 is The case body member 150 can be easily opened. Therefore, in order to prevent the case lid member 160 mounted in the closed state from being opened and to prevent unauthorized operation, the main substrate assembly 130 is provided with the unauthorized opening prevention mechanism according to the second embodiment. A second embodiment of the unauthorized opening prevention mechanism to which the caulking structure K is applied will now be described with reference to FIG.

As shown in FIG. 14, the unauthorized opening prevention mechanism H <b> 2 is connected to the four main body side engaging portions 170 integrally formed by connecting to the right end side of the case main body member 150 and the right end side of the case lid member 160. And four lid-side engaging portions 180 formed integrally.

The main body side engaging portion 170 is a main body side accommodating portion 174 formed integrally with the case main body member 150.
And a plurality of (three in this embodiment) main body side lock claws 171, 172, and 173 formed in the main body side accommodating portion 174. The main body side accommodating portion 174 is integrally formed with the case main body member 150 (using a transparent resin material) in a rectangular parallelepiped box shape whose rear surface side (front side in FIG. 14) is opened at the right end of the case main body member 150. A main body side accommodation space 175 is formed in the interior. In the main body-side housing space 175, three main body-side lock claws 171 to 173 project from the front bottom surface of the main body-side housing portion in a cantilevered manner. The main body side locking claws 171 to 173 have arm portions 171a to 173a and locking claw portions 171b to 173b, and the locking claw portions 171b to 173b of the adjacent main body side locking claws 171 to 173 have alternate directions. Protrusively facing.

On the other hand, the lid side engaging portion 180 is a lid side accommodating portion 184 formed integrally with the case lid member 160.
And a plurality (in the present embodiment, the main body side locking claw 171) formed in the lid side accommodating portion 184.
3) corresponding to .about.173) and cover side lock claws 181, 182, and 183, and when the case cover member 160 is attached to the case main body member 150, the main body side engaging portion 170.
It is supposed to overlap with. The lid-side accommodating portion 184 is formed in a rectangular parallelepiped box shape having a front surface opened at the right end of the case lid member 160 (using a transparent resin material).
The lid side accommodation space 185 is formed in the inside. In this lid side accommodation space 185, three lid side lock claws 1 extend from the rear bottom surface of the lid side accommodation portion 184.
81 to 183 project in a cantilever manner (at a pitch corresponding to the arrangement pitch of the main body side lock claws 171 to 173). The lid side lock claws 181 to 183 are arm portions 181a to 183.
a and locking claws 181b to 183b, and adjacent main body side locking claws 181 to 1
83 latching claw parts 181b to 183b protrude in alternate directions. for that reason,
The lid side lock claws 181 to 183 engage with the corresponding body side lock claws 171 to 173 when the case lid member 160 is attached to the case body member 150 in a closed state. .

In addition, two lid side connecting portions are provided between the right side wall portion that forms a region for housing the main control board 131 in the case lid member 160 and the left side wall portion of the lid side accommodating portion 184 of the lid side engaging portion 180. 189
It is connected with. The lid-side connecting portion 189 is configured to be cuttable, and the lid-side connecting portion 18
By cutting 9, the lid side engaging portion 180 can be separated from the case lid member 160. In the unauthorized opening prevention mechanism H2 configured in this way, the case main body member 1 as described above.
50, the case lid member 160 is swung about the hinge shaft 151 as the central axis, and the locking arm 152 is locked to the protrusion 165 so that the case lid member 160 covers the opening of the case body member 150. When mounted, the main body side locking claws 171 to 173 and the lid side locking claws 181 to 183 are engaged in the main body side accommodating portion 174 and the lid side accommodating portion 184 to engage the main body side engaging portion 170 and the lid side engagement. The case lid member 1 with respect to the case body member 150.
The swinging of the 60 in the separating direction is restricted. Therefore, the state where the case lid member 160 is attached to the case body member 150, that is, the locked state is maintained. Thus, the body side lock claw 1
The main body side engaging portion 170 and the lid side engaging portion 180 can be easily connected by engaging 71 to 173 with the lid side lock claws 181 to 183, and the case main body member 1.
50 and the case lid member 160 can be easily coupled and held in the closed state. Therefore, unauthorized access to the inside from the outside of the main board case 190 can be effectively prevented.

When the case main body member 150 and the case lid member 160 are coupled and held in a closed state by the unauthorized opening prevention mechanism H2, the main body side lock claws 171 to 173 and the lid side lock claws 181 to 183 are engaged. In this state, the disengagement direction (the direction in which the engagement of the lock claw is released) is almost reversed. Therefore, the lock claws 171 to 173, 181 to 183 are inserted by inserting unauthorized members.
Even if you access the main body side lock claws 171-173 and lid side lock claws 181-
It is very difficult to disengage from 183. Therefore, in order to open the main substrate case 190 (main substrate assembly 130), it is necessary to cut the lid side connecting portion 189 and separate the lid side engaging portion 180 from the case lid member 160. Therefore, after the main board case 190 is opened, the cutting trace of the lid-side connecting portion 189 remains clearly, so that it is possible to detect unauthorized opening at an early stage and to effectively prevent unauthorized actions.

Although the preferred embodiments of the present invention have been described so far, the scope of the present invention is not limited thereto. For example, in the above-described embodiment, the case where the caulking structure (unauthorized release prevention mechanism) is configured to include three sets of lock claws has been described as an example, but the present invention is not limited to this. May be provided in plural other than three sets.

In the above-described embodiment, the case body member 50 (150) and the case lid member 6
Four sets of main body side engaging portions 70 (170) and lid side engaging portions 80 (180) are provided at 0 (160), but the present invention is not limited to this, and only one set may be provided. (In that case, the above-mentioned locking piece 79 becomes unnecessary), and a plurality of sets other than the four sets may be provided. Also,
In the above-described embodiment, the main body side engaging portion 70 (170) and the lid side engaging portion 80 (180) are connected to one set at a time, but the present invention is not limited to this. A plurality of sets may be connected.

Furthermore, in the above-described embodiment, the main body side engaging portion 70 (170) and the lid side engaging portion 80.
The lock pawls formed respectively on (180) are directly engaged to connect the main body side engaging portion 70 (170) and the lid side engaging portion 80 (180), so-called unauthorized release prevention mechanism having a two-piece structure. However, the present invention is not limited to this, and the main body side engaging portion 70 (170) and the lid side engaging portion 80 (180) are connected to the main body side engaging portion 70 (170) and the lid side. You may comprise as a so-called unauthorized release prevention mechanism of what is called a three-piece structure connected via the connection member which has a lock nail | claw which can respectively engage with the lock nail | claw of the engaging part 80 (180).

Further, in the above-described embodiment, the unauthorized opening prevention mechanisms H1 and H2 are the main board cases 90 and 1 respectively.
However, the present invention is not limited to this, and may be provided in a substrate case configured in the image substrate assembly 40 or a substrate case configured in the power supply substrate assembly.

In the above-described embodiment, the main board assemblies 30 and 130 including the unauthorized opening prevention devices H1 and H2 are provided in the pachinko machine PM. However, the present invention is not limited to this. You may provide in a ball game machine etc.

Further, in the above-described embodiment, the caulking structure K is configured to prevent the unauthorized opening of the substrate case H1,
The case of applying to H2 has been described as an example. However, the present invention is not limited to this. For example, the present invention is applied to a substrate case attachment mechanism (substrate case attaching / detaching mechanism) for attaching the main substrate assembly to the housing of the slot machine. May be.

PM Pachinko machine (game machine)
H1 unauthorized opening prevention mechanism (first embodiment)
30 Main board assembly 31 Main control board (control board)
50 Case body member (first connecting member, case)
60 Case lid member (second connecting member)
70 Body side engaging part 71-73 Body side lock claw (1st lock claw)
80 Lid side engaging portion 81-83 Lid side lock claw (second lock claw)
90 Main board case (board case)
H2 unauthorized opening prevention mechanism (second embodiment)
130 Main board assembly 131 Main control board (control board)
150 Case body member (first connecting member, case)
160 Case lid member (second connecting member, case)
170 Main Body Side Engagement Parts 171 to 173 Main Body Side Locking Claw (First Locking Claw)
180 Lid side engaging portions 181 to 183 Lid side lock claws (second lock claws)
190 Main board case (board case)
K caulking structure 201 first connecting member 202 second connecting member 203 case 210 first caulking portions 211 to 213 first locking claws (211a to 213a locking projections)
220 2nd crimping part 221-223 2nd lock claw (221a-223a latching protrusion)

Claims (2)

A first caulking portion provided on the first connecting member and a second caulking portion provided on the second connecting member are engaged with each other in a state accommodated in the case, and the first connecting member and the second connecting member are engaged. A caulking structure for connecting the members,
The first caulking portion has a plurality of first lock portions arranged in a line from one end side to the other end side of the case,
The second crimping portion, the direction from one end to the other end aligned in substantially a row, has a plurality of first locking portion engageable with a plurality of second locking portions,
A first locking projection formed to protrude from the first locking portion, and a second locking projection formed to protrude from the second locking portion so as to be substantially opposite to the first locking projection. Configured to be engageable,
The first caulking portion has at least three or more first locking portions arranged so that the protruding directions of the first locking projections are staggered,
The second caulking portion has the same number of the second locking portions as the first locking portions arranged so that the protruding directions of the second locking projections are staggered,
In a state where the first caulking portion and the second caulking portion are engaged, directions in which the engagements of the plurality of first locking portions and the plurality of second locking portions are released are alternate directions. A caulking structure characterized by being configured as follows. In a board case that is attached to the gaming machine by attaching a case lid member to the case body member, housing and holding a control board that controls the operation of the gaming machine inside,
A main body side engaging portion formed on the case main body member as the first connecting member and having the first caulking portion;
A lid-side engaging portion formed on the case lid member as the second connecting member and having the second caulking portion;
When the main body side engaging portion and the lid side engaging portion face each other and overlap each other, at least one of the main body side engaging portion and the lid side engaging portion causes the plurality of first and second pluralities. The case in which the lock portion is accommodated in an engaged state is formed, and the caulking structure according to claim 1 is configured by the main body side engaging portion and the lid side engaging portion,
When the case lid member is attached to the case main body member, the main body side engaging portion and the lid side engaging portion are engaged to fix and hold the case main body member and the case lid member in a closed state. A mechanism for preventing unauthorized opening of a substrate case.

Images