JP5282209B2 - Anti-fraud structure for bullet ball machines - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively prevent a fraudulent act by allowing one wire locking device to control the fraudulent opening of a front frame and a design frame. <P>SOLUTION: In the pinball game machine configured to lock the front frame 2 openable/closable to an outer frame 1 and the design frame 3 openable/closable to the front frame 2, and allow a locking device 4 provided on the front frame 2 to lock the outer frame 1 and the front frame 2, and the front frame 2 and the design frame 3 each, a wire winding mechanism unit 60 of the wire locking device 6 is installed in the outer frame 1, or in facility S a bank of game machines of game facilities behind the outer frame 1, the front end of a wire 61 drawn out of the mechanism unit 60 forward is wound around a pulley 62, a direction is changed along the working direction of a working member 43 of the locking device 4 for opening the design frame 3 for connecting to the working member 43, tension of the wire 61 prevents working of the working member 43 to control opening of the design frame 3, and opening movement of the front frame is controlled. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a fraud prevention structure for a ball game machine, and more particularly to a fraud prevention structure for restricting unauthorized opening of a front frame and a design frame.

In general, as shown in FIG. 1, in a ball game machine, a front frame 2 that supports a game board and electronic control devices is provided on the front side of the outer frame 1 so as to be openable and closable. A design frame 3 that covers the front surface of the game board is provided to be openable and closable.
The front frame 2 and the design frame 3 are configured such that the side edges 2a and 3a are joined by a hinge member 5 so that both the frames 2 and 3 open and close in the same direction. And it is comprised so that the front frame 2, the outer frame 1, the front frame 2, and the design frame 3 may be locked by the locking device 4 provided in the side edge 2b of the open end side of the front frame 2.

FIG. 9 shows a single side view of a conventional typical locking device 4. The locking device 4 is configured to individually unlock the front frame and unlock the design frame. FIG. 9A shows the unlocking operation of the design frame, and FIG. 9B shows the unlocking of the front frame. Indicates operation.
The locking device 4 includes, on a vertically long base portion 40 having a cylinder lock 45, front hooks 41a and 41b protruding forward and a plurality of rear hooks 42a and 42b protruding rearward. The front hooks 41a and 41b are designed. The front frame and the design frame are locked so as to be detachably engaged with the frame, and the rear hooks 42a and 42b are detachably engaged with the outer frame to lock the front frame and the outer frame.
The locking device 4 is provided with an operating member 43 extending in the vertical direction along substantially the entire length of the base portion 40, and the operating member 43 slides in the vertical direction by rotating the key 451 inserted in the cylinder lock 45. It is configured as follows.
As shown in FIG. 9A, the operating member 43 is operated downward by operating the key 451 in one rotational direction (arrow e direction), whereby the front hooks 41a and 41b are in the lower engagement disengagement position ( Acts to the virtual line) and unlocks the design frame.
On the other hand, as shown in FIG. 9B, the operating member 43 is operated upward by operating the key 451 in the other rotational direction (arrow f direction), whereby the rear hooks 42a and 42b are engaged upward. Operates to the release position (virtual line) to unlock the front frame.

By the way, in recent years, a fraudulent act in which an unauthorized tool is inserted through a gap between the outer frame and the front frame to actuate the operation member 43 of the locking device 4 to open the front frame and perform an unauthorized measure on the electronic control unit. In order to prevent this type of fraud, it has been proposed to provide a wire lock device for restricting the opening of the front frame separately from the locking device in a conventional ball game machine (for example, Patent Document 1).
The wire lock device connects the end of the wire pulled out from the wire winding mechanism to the operation member of the locking device, and restricts the operation of the operation member in the direction to unlock the front frame by the tension of the wire, and illegally The front frame is prevented from being opened.

JP 2002-18079 A

However, restricting unauthorized opening of the front frame with a conventional wire lock device is not sufficient for preventing fraud, and the design frame may be unlocked even if the unlocking of the front frame is restricted, If the design frame is opened, there is a risk of fraudulent acts such as nailing the game board.
Although it is conceivable to provide two wire lock devices and individually regulate the front frame and the design frame, there arises a problem of securing the installation space and increasing the cost of the wire lock device.
Therefore, the present invention realizes a fraud prevention structure for a ball game machine that can efficiently regulate the unauthorized opening of the front frame and the design frame by one wire lock device, and thus effectively prevent fraud. Is made as an issue.

The invention of claim 1
An outer frame, a front frame provided on the front surface of the outer frame so as to be openable and closable, and a design frame provided on the front surface of the front frame and openable and closable in the same direction as the front frame. In the ball game machine capable of individually locking and unlocking the open end of the outer frame and the front frame and the open end of the front frame and the design frame by a locking device provided at the end,
The locking device includes a hook for releasably engaging with an open end of the design frame to lock the design frame;
A hook for releasably engaging the outer frame to lock the front frame;
It is provided so as to be operable in the vertical direction along the open end of the front frame, and is operated in either the upper or lower operation direction to release the engagement of the hook that locks the design frame. An operation member that operates in a direction opposite to the operation direction to release the engagement of the hook that locks the front frame ,
A wire take-up mechanism portion fixed to the outer frame at a position rearward of the front frame;
A wire provided so that it can be wound by the wire winding mechanism,
Provided on the base portion or the outer frame of the locking device, the upward or downward to unlock the design frame of the actuating member the front end of the wire by winding the wire drawn out forward from the wire winding mechanism And a pulley that changes direction along one of the operating directions ,
A front end of the wire which is pulled out forward and bent to a right angle or more by the pulley to change its direction is connected to the operating member, and the wire is interposed between the front frame and the outer frame via the locking device. And restricting the unlocking of the design frame by preventing the operation of the operation member in the one operation direction by the tension of the wire wound by the wire winding mechanism unit, A wire lock device is provided that restricts the opening movement of the front frame between the front frame and the outer frame by the tension .

According to the first aspect of the present invention, even if an attempt is made to unlock the design frame by fraud, the actuating member does not operate due to the tension of the wire of the wire lock device, and the unlocking of the design frame can be restricted. On the other hand, even if the front frame is unlocked due to fraud, if the front frame is opened, a wire is stretched to restrict the opening of the front frame. Therefore, it is possible to prevent the front frame and the design frame from being illegally opened by one wire lock device, and it is possible to surely prevent unauthorized actions such as unauthorized processing to the control device and nail bending.
Also, when the opening of the front frame is restricted, the tension of the wire is received at two places, the operating member and the pulley, so that the load can be dispersed and the load on each part can be reduced.

The invention described in claim 2
In the structure for preventing illegal acts of the ball game machine according to claim 1,
A structure for preventing illegal act of a ball game machine , wherein a control unit for controlling the wire winding mechanism is provided in a sub-control device of the ball ball game machine, and the wire winding mechanism is controlled by the control unit.

  According to the invention of claim 2, it is not necessary to prepare a control means for the wire lock device on the island facility side of the game facility.

1 is a schematic perspective view showing a first embodiment to which the present invention is applied and an outer frame, a front frame, and a design frame of a ball game machine related to the present embodiment. It is a schematic side view of the first embodiment. It is a principal part perspective view of the said 1st Embodiment. It is a schematic side view which shows the 2nd Embodiment of this invention corresponding to FIG. It is a schematic side view which shows the 3rd Embodiment of this invention corresponding to FIG. It is a schematic side view which shows the 4th Embodiment of this invention corresponding to FIG. It is a schematic side view which shows the 5th Embodiment of this invention corresponding to FIG. It is an electrical block diagram of the ball game machine to which the said 5th Embodiment is applied. FIG. 9 (a) is a schematic side view showing an unlocking operation of a design frame, and FIG. 9 (b) is an outline showing an unlocking operation of a front frame. It is a side view.

  A first embodiment of the present invention will be described. As shown in FIGS. 1 and 2, a pachinko machine P, which is a bullet ball game machine to which the present embodiment is applied, includes an outer frame 1, a front frame 2, and a design frame 3 as in the conventional structure. The outer frame 1 has a vertically long rectangular shape, and a front frame 2 is provided on the front side thereof. The front frame 2 is connected to the outer frame 1 by hinge members 5 and 5 at the upper and lower ends of one side end 2a (left side in FIG. 1), and can be opened and closed in the horizontal direction. Although not shown, a game board is installed on the front frame 2 on the front side, and an electronic control device or the like is installed on the back side of the game board.

  The design frame 3 is provided so as to cover the front surface of the front frame 2, and similarly to the front frame 2, one side end 3 a is provided so that it can be opened and closed in the horizontal direction by upper and lower hinge members 5, 5. A glass plate (not shown) is fitted into the design frame 3 so as to cover the front surface of the game board of the front frame 2 with the glass plate, and the player faces the game board through the glass plate. Further, the design frame 3 is provided with an upper plate for storing game balls to be launched to the game board, a lower plate, a launch handle for operating the launch of the game balls to the game board, and the like at the lower front portion thereof.

The front frame 2 is provided with a locking device 4 along the vertical direction on the other side end 2b on the open end side, and the other side end 2b of the front frame 2 is locked to the outer frame 1 by the locking device 4, The other side end 3b on the open end side of the design frame 3 is locked to the other side end 2b of the front frame 2.
The pachinko machine P is installed in the game facility by fixing the outer frame 1 to the island facility S of the game facility. And when operation is required on the back side of the pachinko machine P, the locking device 4 is unlocked and the front frame 2 is opened to perform the work on the back side, while operations such as eliminating ball clogging are required on the front side of the game board. Sometimes, the locking device 4 is unlocked, the design frame 3 is opened, and the operation on the front side of the front frame 2 is performed.

  As shown in FIGS. 1, 2, and 9, the locking device 4 has a configuration similar to that of the conventional structure, and is provided with a base portion 40 that extends in the vertical direction along the other side end 2 b of the front frame 2. Yes. The base portion 40 protrudes forward and front hooks 41a and 41b detachably engage with the engaging portion 31 (FIG. 1) of the other side end 3b of the design frame 3, and protrudes backward and the outer frame 1 The rear hooks 42a and 42b that are detachably engaged with the engaging portion 11 (FIG. 1) are held. Further, the locking device 4 is provided with a cylinder lock 45 on the front surface of the base portion 40 and an operating member 43 that slides up and down along the base portion 40 by the unlocking operation. The actuating member 43 is provided over almost the entire length of the base portion 40. Between the base portion 40, a spring member that biases the actuating member 43 upward, although not shown, and the actuating member 43 are attached downward. The spring members to be energized are individually provided, and the actuating member 43 is normally held at a neutral position between the upper and lower sides by the energizing force of both spring members.

The front hooks 41a and 41b and the rear hooks 42a and 42b are connected to the operating member 43, respectively. Then, by operating the key 451 inserted into the cylinder lock 45 in one rotation direction (the direction of arrow e in FIG. 9A), the operating member 43 slides downward, and in conjunction with this, the front hook 41a, 41b operates to the lower engagement release position (the phantom line in FIG. 9A) to unlock the design frame. The hook 41a slides downward to enter the disengagement position, and 41b swings downward to enter the disengagement position.
On the other hand, operating the key 451 in the other direction of rotation (the direction of arrow f in FIG. 9B) causes the operating member 43 to slide upward, and in conjunction with this, the rear hooks 42a and 42b are engaged on the upper side. The front frame is unlocked by operating to the mating release position (the phantom line in FIG. 9B). When the hook 42a slides upward, the hook 42b swings downward to enter the disengagement position.

  The connecting portions of the hooks 41 a, 41 b, 42 a, 42 b to the operating member 43 are, for example, inserted into slits that are vertically long along the upper and lower operating directions of the operating member 43. The operation member 43 moves to the disengagement position corresponding to one operation of the operation member 43, but does not correspond to the operation of the operation member 43 to the other. That is, even if it operates below the operating member 43 to unlock the front hooks 41a and 41b, the rear hooks 42a and 42b do not move (FIG. 9A), and the rear hooks 42a and 42b are unlocked. Therefore, the front hooks 41a and 41b are prevented from moving even when operated below the operating member 43 (FIG. 9B).

As shown in FIG. 1 to FIG. 3, the pachinko machine P includes a locking device 4 for the front frame 2 and an island facility S for a game facility in order to prevent the front frame 2 and the design frame 3 from being illegally opened. A wire lock device 6 is provided between which the wire 61 is installed.
The wire lock device 6 winds the wire 61, the wire winding mechanism unit 60 that winds the wire 61, and the wire 61 drawn from the wire winding mechanism unit 60 to direct the end of the wire 61 in a predetermined direction. It is comprised with the pulley 62 to which it changes.

The wire 61 is formed of a thin flexible metal wire.
The wire winding mechanism 60 is provided with a disk-shaped reel 64 for winding the wire 61, an unillustrated electric motor, a motor control circuit, and the like for rotating the reel 64 inside a metal or resin case. The wire 61 is wound into the case from the opening on the front surface of the case by the rotation of the reel 64. When the electric motor is stopped, the reel 64 is held at the rotational position by the brake mechanism, and locks the wire 61 in the winding state.
Then, by releasing the brake mechanism, the wire 61 can be pulled forward from the wire winding mechanism 60. Note that the wire winding mechanism 60 is operated by a remote operation by a remote controller by an employee of the gaming facility or a wire winding operation or unlocking of the wire by a command from the hall computer of the gaming facility.

  The wire winding mechanism 60 is installed and fixed to the island facility S behind the outer frame 1. The installation position of the wire winding mechanism 60 is a position corresponding to the lower end of the other side end 2b of the front frame 2 where the locking device 4 is installed, and is fixed so that the wire 61 can be pulled out forward.

Corresponding to the wire winding mechanism 60, a pulley 62 is installed in the locking device 4 at a position near its lower end. As shown in FIG. 3, a wide portion 401 in which a cylinder lock 45 is provided on the base portion 40 is formed at a position near the lower end of the locking device 4, and the wide portion 401 extends rearward from its side edge. A vertical wall 402 is formed. A pulley 62 is provided at a vertical intermediate position of the vertical wall 402.
The pulley 62 is a metal disk and has a recess around which the wire 61 is wound. The pulley 62 is rotatably supported on the vertical wall 402 by a central support shaft 621.

  In the wide portion 401 of the base portion 40, a convex bent portion 431 is formed on the operating member 43 so as to avoid the rear end of the cylinder lock 45 connected to the wide portion 401. The bending portion 431 of the operating member 43 is connected to the operating lever 46 at the rear end of the cylinder lock 45, and the operation of the operating lever 46 that swings up and down by the operation of the cylinder lock 45 is transmitted to move the operating member 43 in the vertical direction. Operates to slide.

  As shown in FIGS. 1 to 3, the wire lock device 6 winds the wire 61 drawn forward from the wire take-up mechanism 60 around the pulley 62 and bends the front end of the wire 61 downward substantially at a right angle or more. The direction is changed, and the end of the wire 61 directed downward is connected to the bent portion 431 of the operating member 43 (connecting portion 65). In the connecting portion 65, the end of the wire 61 is folded back to form a loop portion, a screw member is passed through the loop portion, the screw member is fastened to the operating member 43, and the end of the wire 61 is connected to the operating member 43. doing. The distance between the connecting portion connecting the wire 61 to the operating member 43 and the pulley 62 is preferably as short as possible.

The wire lock device 6 winds the wire 61 when the front frame 2 and the design frame 3 are closed and locked, and locks the wire by restricting the rotation of the reel 64 in this state.
According to the wire lock device 6 of the present embodiment, the cylinder lock 45 is operated by an unauthorized key 451 or the like to attempt to unlock the design frame 3 illegally or from the gap between the front frame 2 and the design frame 3. Even if a tool is inserted and the front hooks 41 a and 41 b of the locking device 4 are illegally released, the operation member 43 of the locking device 4 is slid downward by the tension of the wire 61 of the wire lock device 6. Therefore, unauthorized opening of the design frame 3 can be prevented, and the design frame 3 can be prevented from being opened, so that illegal acts such as nail bending can be surely prevented.

On the other hand, on the front frame 2 side, the unlocking operation by the illegally obtained key 451 and the operation member 43 may be illegally slid upward by an unauthorized tool from the gap between the outer frame 1 and the front frame 2 may be unlocked. However, even when unlocked, the front frame 2 has its open end (the other side end 2b) connected to the wire 61 of the wire lock device 6 via the locking device 4, so that the front frame 2 is opened. Even in this case, the wire 61 is stretched and the opening of the front frame 2 is restricted, so that it is possible to reliably prevent an illegal act of performing an illegal measure on the electronic control device.
Therefore, one wire lock device 6 can efficiently regulate any unauthorized opening of the front frame 2 and the design frame 3, and the cost is low.

Further, according to the present embodiment, since the pulley 62 is provided on the front frame 2 side, when the front frame 2 is restricted from being opened, the tension of the wire 61 is applied to the connecting portion 65 and the pulley of the operating member 43 to which the end of the wire 61 is connected. Since it receives in two places of the base part 40 which provided 62, a load can be disperse | distributed and the load burden of each part can be reduced.
Further, the front end of the wire 61 is bent at a substantially right angle or more by the pulley 62 and the direction is changed to be connected to the actuating member 43, so that the wire 61 can be securely hooked on the pulley 62, and thereby the pulley 62 side The load load is increased, and the load load on the side of the actuating member 43 to which the wire 61 is connected can be reduced accordingly.

  As a second embodiment of the present invention, as shown in FIG. 4, the pulley 62 extends rearward in the same way as the vertical wall 402 (FIG. 3) at the upper and lower intermediate positions of the base portion 40 of the locking device 4. The front end of the wire 61 drawn diagonally forward and upward from the wire winding mechanism 60 installed at the low position of the island facility corresponding to the lower end of the locking device 4 is wound around the pulley 62 and turned downward. The end of the wire 61 facing downward is connected to the upper and lower intermediate positions of the operating member 43 (connecting portion 65).

  Although not shown, the wire winding mechanism may be installed at the upper and lower intermediate positions of the island facility corresponding to the pulley and the wire connecting portion 65 provided at the upper and lower intermediate positions of the locking device 4.

  As a third embodiment, as shown in FIG. 5, a pulley 62 is provided on the vertical wall portion 403 at a position near the upper end of the base portion 40 of the locking device 4, and the island facility corresponding to the upper end of the locking device 4 is used. The front end of the wire 61 drawn forward from the wire winding mechanism 60 installed at a high position is wound around the pulley 62 to change the direction downward, and the end of the wire 61 directed downward is near the upper end of the operating member 43. It is set as the structure which is made to connect (connection part 65) to the position of.

The wire take-up mechanism 60 can be attached to the island facility in various positions depending on the game facility, such as a lower position or an upper position. Further, the position of the connecting portion 65 between the pulley 62 and the actuating member 43 and the wire 61 is desirably provided at an up and down position corresponding to the mounting position of the wire winding mechanism portion 60. However, it is difficult to change the position of the pulley 62 and the position of the connecting portion 65 on the game facility side.
Therefore, as a fourth embodiment, as shown in FIG. 6, two pulleys 62 and 62 are provided on the vertical wall portion 403 and the vertical wall 402 at a position near the upper end of the base portion 40 of the locking device 4, respectively. Each pulley 62 is provided with two connecting portions 65 and 65 at the vertical position of the operating member 43 in accordance with 62.

  According to this, in the game facility, it is not necessary to change the pachinko machine side regardless of the upper and lower positions of the wire winding mechanism 60. When the wire take-up mechanism 60 is at the upper and lower intermediate position, it is desirable to use the upper pulley 62 and the connecting portion 65 from the viewpoint of making the bending angle of the wire 61 a right angle or more.

In the first to fourth embodiments, the pulley 62 is installed on the base portion 40 of the locking device 4. However, the configuration is not limited thereto, and the pulley 62 may be provided on the inner surface of the outer frame 1. In this case, it is desirable that the pulley 62 be provided at a position close to the connecting portion obliquely above and behind the connecting portion 65 between the wire 61 and the actuating member 43 of the locking device 4.
When the unlocking of the design frame 3 is restricted, the load burden on the locking device 4 side with respect to the tension of the wire 61 can be reduced. Further, the wire is inclined forward and downward between the pulley and the connecting portion of the operating member, and the unlocking of the design frame 3 can be reliably controlled by the wire in the inclined posture.

FIG. 7 shows a fifth embodiment of the present invention in which the wire winding mechanism 60 of the wire lock device 6 is installed and fixed to the outer frame 1. The basic structure is substantially the same as that of the first embodiment, and the same members are denoted by the same reference numerals in the drawings.
The wire winding mechanism 60 is installed and fixed on the inner surface of the outer frame 1 at a position corresponding to the lower end of the other side end 2 b of the locking device 4 and the front frame 2. Then, the wire 61 drawn forward from the wire winding mechanism 60 is wound around a pulley 62 installed at a position near the lower end of the locking device 4, and the front end of the wire 61 is bent downward substantially at a right angle or more to change the direction. The terminal of the wire 61 facing downward is connected to the operating member 43 (connecting portion 65).

  According to the present embodiment, the same effects as those of the first embodiment can be obtained, the entire length of the wire 61 can be shortened, and the elongation rate of the wire 61 can be reduced correspondingly, and the design frame 3 can be more reliably secured. Can be regulated and the opening of the front frame 2 can be regulated.

  In the present embodiment, like the other configurations of the first embodiment (see FIGS. 4 and 5), the connecting portion 65 between the pulley 62 and the wire 61 and the operating member 43 is provided at the upper and lower intermediate positions of the locking device 4. In addition, the wire winding mechanism 60 may be provided at the upper and lower intermediate positions of the outer frame 1 corresponding to these. Further, the pulley 62 and the connecting portion 65 may be provided at a position near the upper end of the locking device 4, and the wire winding mechanism portion 60 may be provided at a position near the upper end of the outer frame 1 corresponding to these.

In this embodiment, the wire take-up mechanism 60 may be controlled by a hall computer or the like on the game facility side. However, since the wire take-up mechanism 60 is provided in the outer frame 1, the control device for the pachinko machine Thus, the wire winding mechanism 60 can be controlled to be wound without wiring outside the machine.
As shown in FIG. 8, the remote control operated by the employee of the gaming facility is received by the sub-integrated control device (sub-control device) 83 connected via the production relay terminal board and the main control device 80 that controls the game. A unit 66 is provided, and the wire winding mechanism unit 60 is controlled by the sub integrated control device 83 based on the received signal. The sub integrated control device 83 corresponds to the control means described in the claims.
In FIG. 8, 81 is a payout control device that pays out award balls, rental balls, etc. according to instructions from the main control device 80, 84 is a launch control device that launches game balls onto the game board, and 82 is a sub-integrated control device 83. It is an effect symbol control apparatus which makes an effect symbol display apparatus display-control according to the instruction | indication from.
The wire winding mechanism 60 may be controlled not only by the sub integrated control device 83 but also by the main control device 80.

  The present invention is not limited to the configuration of each of the embodiments described above, and can of course be implemented in various ways without departing from the gist of the present invention. For example, in the above-described embodiment, the operating member 43 of the locking device 4 is configured to slide downward to unlock the design frame 3, while sliding upward to unlock the front frame 2, but is not limited thereto. The operating member may be slid upward to unlock the design frame, and may be applied to a locking device that slides downward to unlock the front frame. In this case, the front end of the wire is wound around a pulley and turned upward to connect the end of the wire to the operating member.

P Pachinko machine (ball game machine)
1 outer frame 2 front frame 2b other side end (open end) of front frame
3 Design frame 3b The other side end (open end) of the design frame
4 Locking device 40 Base part 41a, 41b Front hook (hook for locking the design frame)
42a, 42b Rear hook (hook for locking the front frame)
43 Actuating member 6 Wire lock device 60 Wire winding mechanism 61 Wire 62 Pulley 83 Sub integrated control device 83 (control means)
S Island Equipment

Claims (2)

An outer frame, a front frame provided on the front surface of the outer frame so as to be openable and closable, and a design frame provided on the front surface of the front frame and openable and closable in the same direction as the front frame. In the ball game machine capable of individually locking and unlocking the open end of the outer frame and the front frame and the open end of the front frame and the design frame by a locking device provided at the end,
The locking device includes a hook for releasably engaging with an open end of the design frame to lock the design frame;
A hook for releasably engaging the outer frame to lock the front frame;
It is provided so as to be operable in the vertical direction along the open end of the front frame, and is operated in either the upper or lower operation direction to release the engagement of the hook that locks the design frame. An operation member that operates in a direction opposite to the operation direction to release the engagement of the hook that locks the front frame ,
A wire take-up mechanism portion fixed to the outer frame at a position rearward of the front frame;
A wire provided so that it can be wound by the wire winding mechanism,
Provided on the base portion or the outer frame of the locking device, the upward or downward to unlock the design frame of the actuating member the front end of the wire by winding the wire drawn out forward from the wire winding mechanism And a pulley that changes direction along one of the operating directions ,
A front end of the wire which is pulled out forward and bent to a right angle or more by the pulley to change its direction is connected to the operating member, and the wire is interposed between the front frame and the outer frame via the locking device. And restricting the unlocking of the design frame by preventing the operation of the operation member in the one operation direction by the tension of the wire wound by the wire winding mechanism unit, A structure for preventing fraudulent acts of a ball game machine, wherein a wire lock device for restricting the opening movement of the front frame between the front frame and the outer frame by the tension is provided. In the structure for preventing illegal acts of the ball game machine according to claim 1,
A structure for preventing illegal act of a ball game machine , wherein a control unit for controlling the wire winding mechanism is provided in a sub-control device of the ball ball game machine, and the wire winding mechanism is controlled by the control unit.

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