JP2000102638A - Lock mechanism in base plate case of game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assemble and lock a base plate case for containing an electronic circuit base plate having electronic parts to a game machine, and also make a foul release of a lock impossible. SOLUTION: A first fixing device 30 for fixing one edge of a base plate case to a game machine is provided. The first fixing device 30 has a first fixing member 50, a second fixing member 60 rotatably supported to one end of the first fixing member 50 and fixing a base plate case 20 by being nipped between the first fixing member 50 and itself, and a lock device 70 for locking the fixing members 50, 60, together. A first standing section 54 having a first penetrated hole 55 for engaging a lock piece 72 of the lock device 70 s provided at the first fixing member 50. A standing section 62 provided at the second fixing member 60 is positioned outside the first standing section 54 and the first penetrated hole 55 is covered with the second fixing member 60.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism for mounting and locking a board case accommodating an electronic circuit board on which electronic components are mounted to a game machine housing, and in particular, can prevent unauthorized attachment and detachment of the board case. It is like that.

[0002]

2. Description of the Related Art Conventionally, a board case of this kind is mounted in a housing of a game machine such as a slot machine or a pachinko machine, and a game in the game machine is electrically controlled. That is, in a gaming machine such as a slot machine or a pachinko machine, an electronic circuit on which a microcomputer is mounted is housed in a board case, and a game operation is controlled by the electronic circuit, and the electronic circuit is stored in a storage element in the electronic circuit. Game operations such as generating a jackpot or paying out medals or pachinko balls as a prize based on the program or data in the game.

As described above, the gaming operation such as the occurrence of a jackpot in each gaming machine is controlled by the electronic circuit housed in the board case. Further, data for controlling the probability of occurrence of a jackpot is stored in a ROM provided on an electronic circuit.
Is stored in Therefore, by replacing the ROM with a ROM having different storage data, it is possible to change the probability of occurrence of a jackpot in the gaming machine.

[0004] By replacing the ROM or the like, the probability of occurrence of a jackpot in the gaming machine can be increased, and there is a risk that the board case or the ROM itself may be replaced illegally. Conventionally, in order to prevent such impropriety, while sealing the board case, a lock mechanism is provided in a device for attaching the board case to the gaming machine, and a key having a key capable of operating the lock mechanism is owned. Only the user can replace the board case.

[0005] For example, a conventional lock mechanism for a board case includes a first fixture fixed to a game machine and supporting one end of the board case from the back side, and is rotatably attached to one end of the first fixture. For supporting the substrate case on the gaming machine facing the first fixture by being supported and rotated around the support portion and covering the front side of the substrate case supported on the first fixture. And the second fixing device.

The first fixture and the second fixture are provided with opposing rising portions and falling portions on the side surfaces thereof, and the rising portions and the falling portions are opposed to each other in series. By providing a hole and locking the lock pieces of the lock device in a series in this through hole, the first
And the second fixture are locked to fix the board case to the gaming machine.

[0007]

However, in the above-described conventional lock mechanism for a board case, the rising portion provided on the first fixture is located outside the falling portion provided on the second fixture. Was located in. Since a slight gap is inevitably formed between the rising portion provided on the first fixture and the falling portion provided on the second fixture, a tool such as a driver is provided in the gap. It is difficult to prevent the act of releasing the lock by the lock mechanism by removing the lock piece locked in the through hole provided in the rising portion of the first fixture by inserting the lock member. Was.

The lock by the lock mechanism is also released by inserting a cutting tool such as a metal saw into a gap formed between the first fixture and the second fixture to cut the lock piece. can do.

As described above, when the lock by the lock mechanism is released, the board case or the ROM itself can be replaced, and the profit of the game store is illegally harmed, and a sound game is played. You will not be able to do it.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and mounts and locks a board case accommodating an electronic circuit board on which electronic components are mounted on a game machine, and disables unauthorized release of the lock. Accordingly, it is an object of the present invention to provide a lock mechanism for a board case of a gaming machine, which can prevent a board case from being unintentionally attached and detached and play a healthy game.

[0011]

The present invention has the following features in order to achieve the above-mentioned object.

That is, a lock mechanism for attaching and locking a board case accommodating an electronic circuit board on which electronic components are mounted to a gaming machine housing is provided for fixing both ends of the board case to the gaming machine housing, respectively. It has a first fixing device and a second fixing device.

The first fixing device is a first fixing device fixed to a game machine housing for supporting one end of the substrate case from the back side, and is rotatable around one end of the first fixing device. , And is rotated about this support portion to cover the surface side of the substrate case supported on the first fixture, so that the substrate case cooperates with the first fixture. A second fixing member for fixing the first member to the gaming machine housing;
In a state where one end of the substrate case is sandwiched between the fixture of the second embodiment and the second fixture, the first fixture and the second fixture are held.
And a lock device having a lock piece for locking the fixing tool to each other.

The first fixture rises from a base portion for fixing to a game machine housing, and a first through hole through which a lock piece of the lock device can be locked. A first rising portion, wherein the second fixture has a coating portion covering the front side of the first fixture, and a first rising portion having the covering portion covering the first fixture. And a falling portion that falls from the covering portion so as to be located outside.

[0015] The lock piece of the lock device, the state in which the second fixture is over the first fixture, the first piece
Are provided so as to advance and retreat from the inside of the rising portion toward the inside of the first through hole. Preferably, the locking device is attached to the second fixture.

With this configuration, the substrate base is sandwiched between the first fixture and the second fixture, and the lock piece of the lock device is provided on the first rising portion of the first fixture. When the first fixing member is locked by being locked in the first through hole, the rising portion provided in the first fixing tool
Is covered by the covering portion and the falling portion provided on the fixing device, so that a driver or a metal saw cannot be inserted between the first rising portion and the falling portion. Therefore, the lock is not illegally released.

Further, the first fixing member is located outside a falling portion provided on the second fixing member in a state where the first fixing member is covered with the second fixing member. As described above, a second rising portion that rises from the base portion is provided, and the second rising portion is formed in series with the first through hole, and is provided with a second lockable piece of the lock device.
The lock piece of the lock device can be inserted in the falling portion provided in the second fixing tool in a series with the first through hole and the second through hole. May be provided.

With such a configuration, the first through-hole in which the lock piece of the lock device is locked has the falling portion provided in the second fixture and the second through hole provided in the first fixture. And the rising portion of the lock makes it more difficult to illegally release the lock.

Further, in the lock device, the lock piece rotates in a direction substantially perpendicular to a rotation direction of the second fixing tool, and the first through hole, the insertion hole, and the second through hole are rotated. The first fixing tool and the second fixing tool are locked to each other by being inserted and locked in a series with the hole, and the second through hole is provided with the first through hole and the first through hole. In comparison, it is preferable that the length of the lock piece along the rotation direction is short.

With such a configuration, it becomes difficult to insert a driver, a metal saw or the like into the second through-hole exposed to the outside at the time of locking, and it becomes even more difficult to illegally release the lock.

Further, the second fixing device may fix the other end of the board case to a game machine housing by supporting the other end of the board case from both front and back surfaces.

With such a configuration, the other end of the board case can be easily fixed to and removed from the game machine housing.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a lock mechanism according to the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show an embodiment of the lock mechanism according to the present invention. FIG. 1 is a front view of the lock mechanism with a substrate case attached, and FIG. 2 is a first fixing device. FIG. 3 is a perspective view of a first fixing device, and FIG.
It is a perspective view of the 1st fixing device in the state where a substrate case was attached. FIG. 5 shows a slot machine to which the lock mechanism according to the present invention is applied (in the following description of the embodiments, a so-called pachislot gaming machine will be referred to), and FIG. Perspective view of FIG. 5
(B) is a front view showing the inside of the housing of the slot machine.

<Slot Machine (Pachislot Machine)> The lock mechanism 10 according to the present invention includes a board case in which a control device for electrically controlling the game is housed, such as a slot machine 80 or a pachinko machine. Used for gaming machines. Hereinafter, a slot machine 80 will be described as an example of a typical gaming machine.

As shown in FIG. 5A, a slot machine 80 to which the lock mechanism 10 according to the present invention is applied has a housing 90 having a front door 100 which can be opened and closed on the front. Front door 1
In 00, a display window 110 is provided substantially above the center of the front surface, and the outer peripheral surfaces of three reels 120 arranged inside the housing 90 face each display window 110.

At the front of the front door 100 below the display window 110, a medal slot 130 for inserting a game medal to be used for a game, and rotation of each reel 120 is started on condition that the game medal is inserted. Start switch 140 for
And three stop switches 150 for individually stopping the rotation of each reel 120 in correspondence with each reel 120.

Further, a medal tray for receiving game medals paid out as a prize is provided below the front door 100.
A medal payout port 170 is provided so as to face the medal tray 160 while providing the medal.

As shown in FIG. 5B, inside the housing 90, reels 120 are rotatably arranged at positions where the outer peripheral surface faces each display window 110, and the reels 120 are provided at the medal payout port 170. A hopper 180 for paying out game medals as a prize is arranged at the communication position.

A board case 20 having a control device for electrically controlling the slot machine 80 is provided inside the housing 90 so as to be located above the reel 120. Locking mechanism 10 with two fixing devices 40
It is attached by.

<Board Case> The above-described board case 20 includes:
As shown in FIG. 1, an electronic circuit board on which electronic components are mounted
21 and a cover member 22 that covers the electronic circuit board 21,
At the left and right ends of the electronic circuit board 21, a plurality of connectors 24a, b, c for connecting the electronic circuit board 21 and the electric components of the slot machine 80 are provided.

The cover member 22 is made of, for example, a transparent plastic or the like.
A plurality of heat radiating holes 23 are formed. The cover member 22 and the electronic circuit board 21 are sealed by a sealing member (not shown) such as a seal in a state where both are integrated.

As shown in FIG. 1, the board case 20 is fixed to the gaming machine by fixing the left and right ends thereof with a first fixing device 30 and a second fixing device 40, respectively.

<First Fixing Device> The first fixing device 30 is a device for fixing the right end of the substrate case 20 to a game machine as shown in FIGS. First fixing member for supporting the right end of the substrate case 20 from the back side
50 and a lower end of the first fixture 50 so as to be rotatable, and to be rotated about the support portion 65 so as to face the surface of the substrate case 20 supported on the first fixture 50. By covering
A second fixture 60 is provided facing the first fixture 50 and cooperating to fix the board case 20 to the game machine.

The second fixture 60 has a first fixture.
A lock device 70 is provided for locking the first fixing tool 50 and the second fixing tool 60 with the right end of the substrate case 20 sandwiched between the 50 and the second fixing tool 60.

The lock device 70 includes a key cylinder 71, as will be described in detail later, and includes a lock piece 72 that rotates with the rotation of the key cylinder 71.

<First Fixing Tool> The first fixing tool 50 described above.
As shown in FIGS. 2 to 4, a base portion 51 for fixing to a gaming machine, a first rising portion 54 rising from the base portion 51, and located outside the first rising portion 54. As described above, the second rising portion 57 that rises from the right end of the base portion 51 and the second rising portion 57 that rises from the upper and lower ends of the base portion 51 respectively and contact the upper and lower outer surfaces of the substrate case 20 so that the substrate case 20 is It has a pair of support pieces 56a, 56b for sandwiching and supporting.

On the left side of the above-described base portion 51, FIGS.
As shown in FIG.
A letter-shaped mounting base 52 extends. The base portion 51 contacts the back side of the board case 20 to support the board case 20 from the back side, and the mounting base 52
By inserting the screw into the screw holes 53a, b provided in the and screwing the tip of the screw into the gaming machine housing 90, the back mechanism panel, etc.,
The first fixture 50 is fixed to the gaming machine.

The first rising portion 54 has the structure shown in FIG.
As shown in FIGS. 4 to 4, a first through hole 55 is provided in which the lock piece 72 of the lock device 70 can be locked. Further, the second rising portion 57 is provided with a second through hole 58 in which the lock piece 72 of the lock device 70 can be locked in series with the first through hole 55.

As shown in FIG. 3, the first through hole 55
The width of the lower end side is wider than that of the upper end side, and the diameter is reduced from the lower end side to the upper end side at an intermediate portion in the length direction. Although not shown, the second through hole 58 has the same configuration. With such a configuration, each through-hole
When the lock piece 72 enters into 55 and 58, the first fixing device 5
Even if there is some backlash between the 0 and the second fixture 60, the lock piece 72 can easily enter, and the lock can be reliably performed at the lock position.

As shown in FIG. 2, the length of the second through hole 58 is shorter than that of the first through hole 55. That is, the lower end of the second through hole 58 is
The second through hole is located above the lower end of 55
58 are provided. The reason why the length of the second through hole 58 can be reduced in this way is that the locking device 70
This is because the second through-hole 58 is located outside the first through-hole 55 on the rotation locus of the lock piece 72. Further, as described above, the second through hole 58 is formed into the first through hole 55.
By making the length shorter, it becomes difficult to insert a driver or the like into the second through-hole 58 located on the outside, and it is possible to more effectively prevent unauthorized unlocking.

<Second Fixture> The second fixture 60 described above is used.
As shown in FIGS. 2 to 4, a covering portion 61 covering the front side of the first fixture 50 and a first rising portion 54 and a second rising portion 57 from the right end of the covering portion 61 are formed. A falling portion 62 that falls so as to be located therebetween, an opposing piece 64 that falls from the inner end of the covering portion 61 so as to face the falling portion 62, and extends from the covering portion 61 to the left. And a pair of holding pieces 66a, 66b provided. Further, the lower end of the second fixture 60 is rotatably supported by the lower end of the first fixture 50, and the second fixture 60 can pivot about the support portion 65 in the vertical direction.

The opposing piece 64 abuts on the right end of the board case 20 to support the board case 20 from the right end side, and the pair of holding pieces 66a, b are placed on the surface side of the right end of the board case 20. By contact, the substrate case 20 is supported from the front side.

An engaging piece 67 extends from the free end side of the facing piece 64, and engages with the base 51 of the first fixture 50 for engaging the engaging piece 67. A mating groove 59 is provided. Therefore, when the second fixing tool 60 rotates upward and the opposing piece 64 abuts on the base portion 51, the engaging piece 67 is engaged in the engaging groove 59, and the second fixing tool 60 Rattle can be prevented.

The falling portion 62 has a first through hole.
An insertion hole 63 through which the lock piece 72 of the lock device 70 can be inserted is provided in series with the 55 and the second through hole 58.

<Locking Device> The locking device 70 described above
As shown in FIGS. 1 to 4, the key cylinder 71 includes a lock piece 72. The lock device 70 is arranged such that the key groove 73 is positioned on the surface side of the covering portion 61 of the second fixture 60, and the key cylinder 71 is inserted into a mounting hole (not shown) formed in the covering portion 61.
Is inserted into a screw groove (not shown) provided on the outer periphery of the main body that rotatably supports the key cylinder 71, and a nut 74 is attached from the back surface side of the covering portion 61, whereby the second fixture 60 is
Attached to.

The lock piece 72 rotates from the inside of the first rising portion 54 toward the first through hole 55, the insertion hole 63, and the second through hole 58 with the rotation of the key cylinder 71. When the lock piece 72 enters the first through hole 55, the insertion hole 63, and the second through hole 58, the first fixing member 50 and the second fixing member 60 Can be locked together. On the other hand, by rotating the key cylinder 71 in the opposite direction, and withdrawing the lock piece 72 from the inside of the second through hole 58, the insertion hole 63, and the first through hole 55, the first fixture 50 is rotated.
And the second fixture 60 can be unlocked.

The locking device 70 is provided with a keyway 73
Locking and unlocking are performed by inserting a key (not shown) therein and rotating the key cylinder 71.

<Second Fixing Device> As shown in FIG. 1, the second fixing device 40 holds the left end of the board case 20 from both the front and back sides to play the left end of the board case 20. It is a device for fixing to the machine.

The second fixing device 40 rises from the base portion 44 fixed to the gaming machine, and has a plurality of upper holding pieces 41a, b extending from the rising end toward the first fixing device 30. A plurality of lower holding pieces 42a, b, c extending down from the base portion 44 and extending from the falling end toward the first fixing device 30. The upper holding pieces 41a, 41b The left end of the board case 20 can be fixed to the game machine by inserting the left end of the board case 20 between the lower holding pieces 42a, 42b, and 42c.

The base portion 44 of the second fixing device 40 rises from the upper and lower ends thereof, and
A pair of support pieces 43 for supporting the board case 20 by sandwiching the board case 20 from above and below by contacting the upper and lower outer surfaces of the board case 20.
a, b are provided. In addition, these support pieces 43a and 43b
May be provided separately from the fixing device 40.

<How to Use the Lock Mechanism> In order to fix and lock the board case 20 to the game machine using the lock mechanism 10 described above, first, the first fixing device 30 The lock with the second fixture 60 is released, and the second fixture 60 is rotated downward.

Next, the left end of the board case 20 is sandwiched and supported by the upper holding pieces 41a, b and the lower holding pieces 42a, b, c of the second fixing device 40 from the front and back sides. The upper and lower side surfaces of the board case 20 are supported by the pieces 43a and 43b. Thus, the left end of the board case 20 is fixed by the second fixing device 40.

Then, the right end of the substrate case 20 is placed on the first fixture 50, and the upper and lower side surfaces of the substrate case 20 are supported by a pair of upper and lower support pieces 56a and 56b.

Further, the second fixture 60 is turned upward to rotate the substrate case supported on the first fixture 50.
When the first fixing device 30 is placed on the surface side of the first fixing device 30, the pair of pressing pieces 66 a and
Thereby, the right end of the board case 20 can be fixed.

In this state, the key is inserted into the key groove 73 of the key cylinder 71 and the key cylinder 71 is rotated to insert the first through hole 55 of the first rising portion 54 and the insertion hole of the falling portion 62.
63, locking piece 72 in second through hole 58 of second rising portion 57
, The first fixture 50 and the second fixture 60 are locked together in an integrated state.

In such a locked state, the first rising portion 54 having the first through hole 55 is covered by the covering portion 61 and the falling portion 62, and the first rising portion 54 and the falling portion 62 There is no gap between the portion 62. Further, since the second rising portion 57 is located outside the falling portion 62, it is difficult to pry the falling portion 62 outward.

In the above-described embodiment, the first fixture 50 is provided with two rising portions, that is, a first rising portion 54 and a second rising portion 57, and the first rising portions 54 and 57 are provided with transparent portions respectively. Although the holes 55 and 58 are provided, in the lock mechanism 10 according to the present invention, the first rising portion 54 having at least the first through hole 55 may be provided.
That is, without providing the second rising portion 57, only the first rising portion 54 having the first through hole 55 may be provided, and even when the second rising portion 57 is provided, It is not necessary to provide the second through hole 58 in the second rising portion 57. Further, in the case of such a configuration, it is not necessary to provide the insertion hole 63 in the falling portion 62 of the second fixture 60.

The lock device 70 is composed of the key cylinder 71 on which the lock piece 72 rotates.
70 may be of other construction, for example, attached to the second fixture 60 and
May be a cylinder lock having a lock piece that reciprocates toward the first through-hole 55, the insertion hole 63, and the second through-hole 58 from the inside.

In the second fixing device 40, the upper holding pieces 41a, b and the lower holding pieces 42a, b, c are provided.
The fixing device 40 may have another configuration,
For example, only the upper holding pieces 41a and 41b are provided, and the board case 20 is provided.
May be fixed to the gaming machine by supporting the back surface of the base case 44 with the base 44 and inserting the left end of the board case 20 between the upper holding pieces 41a, b and the base 44. . Also, instead of dividing the upper holding pieces 41a, b and the lower holding pieces 42a, b, c into a plurality of pieces, each holding piece may be configured as a series.

Further, although the first fixing device 30 and the second fixing device 40 are provided as separate bodies, they may be integrally formed, for example, the base portion 51 of the first fixing device 50. The first fixing device 30 and the second fixing device 40 can be integrally formed by integrating the first fixing device 30 and the base portion 44 of the second fixing device 40.

The second fixing device 40 is not limited to the one described in the above embodiment, but may be any device that can fix the other end of the board case 20 to the gaming machine housing 90. However, for example, an engaging portion provided in the gaming machine housing 90 that can be engaged with the board case 20,
A screw or the like for attaching 20 to the gaming machine housing 90 may be used.

[0063]

The present invention has the above-mentioned structure,
The following effects are obtained.

According to the lock mechanism of the present invention, the board case is sandwiched and fixed between the first fixture and the second fixture, and the lock piece of the lock device is fixed to the first fixture of the first fixture. It is locked by being locked in a first through hole provided in the rising portion. In this locked state, the first rising portion provided on the first fixture is covered by the covering portion and the falling portion provided on the second fixture.

Therefore, there is no gap between the falling portion and the first rising portion provided with the first through hole, so that a driver or a metal saw cannot be inserted. For this reason, since the lock of the lock piece cannot be released by bending the first rising portion or the lock piece cannot be cut by the metal saw, the lock is not released illegally, and the board case is incorrectly replaced. Can be prevented.

Further, the first through hole provided in the first rising portion where the lock piece of the locking device is locked is provided with the falling portion provided in the second fixture and the first through hole provided in the first fixture. It is sandwiched from the left and right by the two rising portions.

Therefore, since the first through-hole is doubly protected by the falling portion and the second rising portion, it is difficult to pry open the falling portion outward, and the unauthorized release of the lock is prevented. It becomes even more difficult.

Further, the length of the second through hole located outside in the first fixing device is shorter than the length of the first through hole. Therefore, it becomes difficult to insert a driver, a metal saw or the like into the second through hole, and it becomes even more difficult to illegally release the lock.

In the second fixing device, the other end of the substrate case is fixed to the game machine by sandwiching the other end of the substrate case from both sides. Therefore, the other end of the board case can be more easily fixed to the gaming machine.

[Brief description of the drawings]

FIG. 1 is a front view of a lock mechanism with a board case attached.

FIG. 2 is a front view of a first fixing device.

FIG. 3 is a perspective view of a first fixing device.

FIG. 4 is a perspective view of a first fixing device with a board case attached.

FIG. 5 shows a slot machine to which the lock mechanism according to the present invention is applied, and FIG. 5 (a) is a perspective view of the slot machine,
FIG. 5B is a front view showing the inside of the slot machine.

[Explanation of symbols]

 10 Locking mechanism 20 Board case 21 Electronic circuit board 22 Cover member 23 Heat radiating hole 24 Connector 30 First fixing device 40 Second fixing device 41 Upper holding piece 42 Lower holding piece 43 Supporting piece 44 Base 50 First fixing Tool 51 Base 52 Mounting base 53 Screw hole 54 First rising part 55 First through hole 56 Support piece 57 Second rising part 58 Second through hole 59 Engagement groove 60 Second fixing tool 61 Covering part 62 Falling part 63 Insertion hole 64 Opposite piece 65 Support part 66 Pressing piece 67 Engagement piece 70 Lock device 71 Key cylinder 72 Lock piece 73 Key groove 74 Nut 80 Slot machine 90 Housing 100 Front door 110 Display window 120 Reel 130 Medal insertion Mouth 140 Start switch 150 Stop switch 160 Medal tray 170 Medal payout outlet 180 Hopper

Claims (5)

[Claims] 1. A lock mechanism for attaching and locking a board case accommodating an electronic circuit board on which electronic components are mounted to a game machine, for fixing both ends of the board case to a game machine housing, respectively. A first fixing device and a second fixing device, wherein the first fixing device is fixed to a game machine housing, and a first fixing tool for supporting one end of the substrate case from the back side. The first fixing device is rotatably supported at one end thereof, and is rotatable about the supporting portion to cover the surface side of the substrate case supported on the first fixing device, whereby A second fixing tool for fixing the board case to the gaming machine housing in cooperation with a first fixing tool; and the board case between the first fixing tool and the second fixing tool. While holding one end, the first fixture and the second fixture A lock device having a lock piece for locking the fixture with each other, wherein the first fixture has a base portion for fixing to a gaming machine housing, and a lock piece of the lock device can be locked. A first rising portion that rises from the base portion and has a first through-hole, wherein the second fixing tool has a covering portion that covers a surface side of the first fixing tool; A falling portion that falls from the covering portion so as to be located outside the first rising portion while being covered by the first fixing device, wherein the lock piece of the locking device includes the second fixing device. Is provided so as to advance and retreat from the inside of the first rising portion toward the inside of the first through hole when the first case is covered with the first fixture. Lock mechanism. 2. The lock mechanism for a board case of a gaming machine according to claim 1, wherein said lock device is attached to said second fixture. 3. The first fixture is located outside a falling portion provided in the second fixture in a state where the first fixture is covered with the second fixture. Thus, a second rising portion that rises from the base portion is provided, and the second rising portion is formed in series with the first through hole, and is provided with a second lockable piece of the lock device. A through-hole is provided, and a falling portion provided in the second fixture is formed in series with the first through-hole and the second through-hole so that a lock piece of the lock device can be inserted therethrough. 3. The locking mechanism for a board case of a gaming machine according to claim 1, wherein an insertion hole is provided. 4. The lock device according to claim 1, wherein the lock piece rotates in a direction substantially orthogonal to a rotation direction of the second fixture.
The first fixing tool and the second fixing tool are locked to each other by being inserted and locked in series with the first through hole, the insertion hole, and the second through hole. 4. The game machine board according to claim 3, wherein the second through hole has a shorter length along the rotation direction of the lock piece than the first through hole. Case locking mechanism. 5. The second fixing device according to claim 1, wherein the other end of the board case is fixed to a gaming machine housing by supporting the other end of the board case from both sides. The locking mechanism for a board case of a gaming machine according to any one of claims 1 to 4.