JP2003102903A - Slot machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slot machine in which a front door is made easy to close even in the state of placing a medal on the opening side on the upper face of the lower part of a main body frame, more preferably, the assembly of the main body frame is facilitated or occurrence of trouble caused by the influence of noises can be suppressed. SOLUTION: In the slot machine provided with the box-shaped main body frame having the opening front face and the front door supported on the main body frame to be freely turned, on the front door, an illegality block part to be moved inside the main body frame in the state of closing the front door for blocking the invasion of an illegal article from a gap between the main body frame and the front door is provided while being protruded backward.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a slot machine.

[0002]

2. Description of the Related Art A slot machine such as a pachi-slot gaming machine is generally provided with a box-shaped main body frame having an open front surface and a front door pivotally supported on the front side of the main body frame so as to be openable and closable. ing. Among them, inside the main frame, there is an electric device such as a reel device for playing a variable display game, a control device for integrally controlling the game, a power supply device, and a hopper for paying out medals to a saucer at the lower front of the front door. An internal device for driving is provided. Further, the main body frame is provided with a fraud prevention unit for preventing a fraudulent act on the medal payout device or the like by inserting a wire or the like through a gap between the main body frame and the front door. That is, in the body frame, a fraud prevention member that abuts at least a part of the lower surface of the front door in a state where the front door is closed and prevents an unauthorized object from entering from a gap between the front door and the body frame, It is provided so as to project forward.

[0003]

However, in the conventional slot machine, since the tampering prevention member is provided in the main body frame so as to project forward from the main body frame, for example, the opening side of the lower surface of the main body frame is opened. When trying to close the front door with a medal on, the medal is caught between the front door and the lower part of the tamperproof member, or the front door does not close,
Alternatively, it may not be completely closed and may remain in a half-opened state. If the door is left in the half-opened state, the gap between the front door and the main body frame becomes relatively large, which increases the possibility of fraudulent acts. In addition, since the conventional slot machine has a configuration in which the fraud prevention member is attached to the main body frame, it takes time and effort to assemble the main body frame at least for the work of attaching the fraud prevention member. Furthermore, since an electrically driven internal device (reel device, power supply device, hopper, etc.) is provided inside the main body frame, electrical noise is likely to occur. In addition, in the hopper,
A large number of medals may be paid out at one time, and in such a case, noise easily occurs due to contact between medals or contact between medals and other members. If noise occurs for any of these reasons, the control device may not function normally, or the adjacent slot machine may be affected by the noise, which is a problem.

The present invention has been made to solve the above-mentioned problems. For example, even if a medal is placed on the opening side of the lower surface of the main body frame, the front door can be easily closed.
More preferably, it is an object of the present invention to provide a slot machine capable of facilitating the assembly of the main body frame and suppressing the occurrence of inconvenience due to the influence of noise.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a box-shaped main body frame having an open front surface, and a front door rotatably supported by the main body frame. In a slot machine including: a fraud that enters the inside of the main body frame with the front door closed and prevents an unauthorized object from entering from a gap between the main body frame and the front door. It is characterized in that the blocking portion is provided so as to project rearward.

[0006] Here, an illegal item is an item used when performing an illegal act on a medal payout device or the like,
This dishonest thing includes wire etc., for example.

According to the first aspect of the present invention, the front door includes:
Since the unauthorized access prevention portion that enters the inside of the main body frame with the front door closed and prevents intrusion of an unauthorized object from the space between the main body frame and the front door is provided in a state of protruding rearward. , The medal is not easily caught between the front door and the body frame, and the front door is easily closed. Therefore, it is possible to reduce the possibility that a fraudulent act such as insertion of a fraudulent object from the gap between the front door and the main body frame is performed. Further, since the fraud prevention portion is provided on the front door instead of the main body frame, the main body frame can be easily manufactured. Further, the fraud prevention portion and the front door can be integrally molded with resin, and in this case, the front door can be manufactured more easily than when the fraud prevention portion is attached.

According to a second aspect of the present invention, in the slot machine according to the first aspect, the tampering prevention portion is provided along a lower side of the back side of the front door, and the main body frame lower portion is in a state where the front door is closed. It is characterized in that it is configured to include a lower side upper side tampering prevention portion that enters above the upper surface.

According to the second aspect of the present invention, the fraud prevention unit is provided along the lower back side of the front door, and the fraud prevention upper side of the lower side that enters the upper side of the lower surface of the main frame with the front door closed. Since it is configured to include the portion, it is possible to prevent the insertion of an illegal article or the like from the gap between the front door and the lower side of the main body frame with the front door closed.

According to a third aspect of the present invention, in the slot machine according to the second aspect, the distance between the lower surface of the lower side upper fraud prevention portion and the lower surface of the main body frame lower side thereof is not less than the medal thickness. On the other hand, the rear side surface of the front door that extends below the lower side upper side improper blocking portion and the front end surface of the member provided on the upper surface of the lower portion of the main body frame that faces the rear side surface. By setting the interval of and so that it is equal to or greater than the diameter of the medal with the front door closed,
It is characterized in that the interval constitutes a medal accommodation portion capable of accommodating medals in a state of being laid down.

Here, the medal means a medal used for playing a slot machine. Some medals have a thickness of about 1.5 to 1.8 mm, a diameter of about 25 mm, and a diameter of about 30 mm. The medal receiving unit is a large medal (with a diameter of about 30 mm)
May be set to a size that can be accommodated, or may be set to a different size depending on the medal to be used. Examples of the member provided on the upper surface of the lower portion of the main body frame include a hopper mounting rail for mounting the hopper.

According to the third aspect of the present invention, the distance between the lower surface of the lower side upper fraud prevention portion and the lower upper surface of the main body frame below the lower side fraud prevention portion is set to be equal to or greater than the medal thickness. The front door is closed by the distance between the back side surface that extends below the upper fraudulent prevention portion on the lower side of the door and the front end surface that faces the back side surface of the member provided on the upper surface of the lower portion of the main body frame behind it. By setting the diameter to be equal to or larger than the diameter of the medal in the state, the medal accommodating portion capable of accommodating the medal in the state of being laid down is configured with the above-mentioned interval. That is, when trying to close the front door with a medal placed on the opening side of the lower surface of the main body frame, the medal will be accommodated in the medal accommodating portion in a sideways state. The front door can be completely closed without the medal being caught in the frame.

According to a fourth aspect of the present invention, in the slot machine according to the second or third aspect, the upper surface of the lower side upper fraud prevention portion is inclined downward toward the rear.

According to the fourth aspect of the present invention, since the upper surface of the lower side upper fraud prevention portion is inclined downward toward the rear, the medal is not placed on the upper surface of the lower side upper fraud prevention portion. , It flows down by sliding on the inclined surface and moves to the upper surface of the lower part of the main frame. Therefore, the medal is unlikely to be caught between the front door and the main body frame, and the front door can be closed smoothly.

According to a fifth aspect of the present invention, in the slot machine according to any one of the second to fourth aspects, the fraud prevention portion of the front door is positioned below the upper fraud prevention portion of the lower side. It is characterized in that it is configured to include a lower side lower side fraud prevention section provided along the lower side of the back side.

According to the fifth aspect of the present invention, the fraud prevention unit includes a lower side lower fraud prevention unit provided along the lower back side of the front door so as to be located below the lower fraud prevention unit. Therefore, it is possible to more appropriately prevent the insertion of an unauthorized object from the gap between the front door and the lower side of the main body frame while the front door is closed.

According to a sixth aspect of the present invention, in the slot machine according to the fifth aspect, a rear end portion of the lower side lower side tampering prevention portion is inserted into a lower portion of the front surface of the main body frame with the front door closed. It is characterized in that a recess is formed.

According to the sixth aspect of the present invention, the front door of the main body frame is formed with a recessed portion into which the rear end portion of the lower side lower fraud prevention portion is inserted when the front door is closed. In the closed state, it is possible to more appropriately prevent the insertion of an illegal article or the like from the gap between the front door and the lower side of the main body frame.

According to a seventh aspect of the present invention, in the slot machine according to any of the first to sixth aspects, the main body frame is provided with an electrically conductive means for conducting along an inner surface of the main body frame. The door is provided with a substantially square-shaped conductive frame along the peripheral portion of the front door, and the conductive frame has one end thereof rotated with respect to the main body frame via a conductive hinge mechanism. It is possible to pivotally support the inner surface of the main body frame, and the conductive frame is electrically connected to the electric conduction means through the hinge mechanism and the tampering prevention portion, respectively.

According to the invention of claim 7, the main body frame is
An electrically conductive means for electrically conducting along the inner surface of the body frame;
The front door is provided with a substantially square-shaped conductive frame along the peripheral portion of the front door, and the conductive frame has one end thereof rotated with respect to the main body frame via a conductive hinge mechanism. Possibly supported on the inner surface of the main body frame, the conductive frame is electrically connected to the electric conduction means via the hinge mechanism and the tampering prevention portion, respectively. Therefore, the charges generated at the front door can be moved from the conductive frame to the electric conduction means via the hinge mechanism and the tampering prevention unit, respectively. Therefore, the discharge area of the charges generated at the front door increases, so that the charges can be efficiently discharged. As a result, it is possible to preferably prevent malfunction of an electrically driven internal device such as a control device due to noise caused by static electricity generated at the front door. Further, for example, when the electric conduction means formed of metal is used, the rigidity of the main body frame can be increased and the strength of the main body frame can be increased.

Here, as the electric conduction means, for example,
Examples include metals, thin layer-formed plating, plated members (for example, resin members, etc.), conductive resins, and the like. In addition, as the conductive resin, polycarbonate (PC), acrylonitrile butadiene styrene (AB
Examples thereof include those obtained by mixing carbon powder into S), polypropylene (PP), and the like, but are not limited to these, and other conductive resins may be used.

According to an eighth aspect of the present invention, in the slot machine according to the seventh aspect, the main body frame is provided with a metal member along the inner peripheral edge of the lower side of the front opening, and the metal member has a chamfered shape. It is characterized by

According to the invention of claim 8, since the metal member is provided along the inner peripheral edge of the lower side of the front opening of the main body frame, the rigidity of the lower part of the main body frame is increased and the strength of the main body frame is increased. be able to. Further, since this metal member has a chamfered shape, it is difficult for the medal to be caught between the illegality preventing portion and the inner peripheral edge portion of the lower side of the front opening portion of the main body frame when the front door is closed. For example, when trying to close the front door with the medal leaning against the chamfered inner peripheral edge, the top of the medal is pushed backward by the fraud prevention unit, while the back surface of the medal is The lower part of the medal is pushed toward the front by sliding obliquely downward along the peripheral edge. As a result, the medals escape to the front side of the lower part of the main body frame and to the lower side of the front door, so that the front door can be closed smoothly.

According to a ninth aspect of the present invention, in the slot machine according to any one of the first to sixth aspects, a metal member arranged along an inner peripheral edge of a lower side of the front opening of the main body frame, Based on electrically connecting the substantially frame-shaped conductive frame arranged along the peripheral portion of the front door, and the conductive frame and the metal member of the main body frame to each other,
Front door open state detecting means for detecting a closed state of the front door.

According to the invention of claim 9, the metal member is arranged along the inner peripheral edge of the lower side of the front opening of the main body frame, and the substantially rectangular shape is arranged along the peripheral edge of the front door. Based on electrically connecting the conductive frame, the conductive frame and the metal member of the main body frame to each other, the front door open state detection means for detecting the closed state of the front door, and, therefore,
The open / closed state of the front door can be detected by the front door open state detecting means.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The present embodiment describes a pachi-slot gaming machine as a suitable example of the slot machine according to the present invention.

[First Embodiment] As shown in FIG. 2, a pachi-slot gaming machine 100 of this embodiment has a box-shaped machine frame 1 (main body frame) having an open front, and this machine frame 1 And a front door 2 pivotally supported on the front side of the. As shown in FIG. 1, the front door 2 is normally closed so as to close the front opening of the machine frame 1.

As shown in FIG. 2, the machine frame 1 includes upper and lower face plates 110 and 120 and left and right face plates 130 and 130, which are made of plywood or the like.
The front face is opened by the box 140 and the back face plate 150 to form a box shape. Inside the machine frame 1, a control device 70 for controlling the game in general and a medal 500 (see FIG. 6).
Hopper 80 for storing and paying out to the tray 18, a storage box 90 for storing the medals 500 overflowing from the hopper 80, a base box 75 for storing a power supply substrate (not shown), and a variable display of symbols A reel device 20, a relay board 78 (described later), and the like are provided. Among these, the control device 70 controls the payout operation of the medals 500 by the hopper 80, the rotation operation of the reels 20a, 20b, 20c (described later) of the reel device 20 and the like.

On the other hand, the front door 2 is, as shown in FIG. 2, a base member 200 which is the main structure of the front door 2 and various constituent elements provided directly or indirectly to the base member 200. It consists of The base member 200 has a divided structure composed of an upper base member 210 and a lower base member 220. The upper and lower base members 210, 220 are arranged such that the lower surface and the upper surface thereof are butted against each other, and the key units 230 are provided on the left and right sides of the back side. The hinge unit 240 and the hinge unit 240 are fixed and connected to each other. Furthermore, hinge unit 2
The hinge device 241 provided in 40 is attached to a mounting member 242 provided on one side inside the machine frame 1 as shown in FIG. 2, whereby the base member 200 becomes rotatable with respect to the machine frame 1. Therefore, the front door 2 is also rotatable with respect to the machine frame 1.

As shown in FIG. 1, on the front surface of the front door 2, there is a display window 4 through which the speaker units 3 and 3 for effecting the game by voice and the effect display device 4a for effecting the game by display can be seen. , The reel 2 of the reel device 20 provided inside
0a, 20b, 20c can be seen through the reel display window 5, the medal insertion slot 6 for inserting the medal 500, the credit number display section 7 for displaying the number of credits of the medal 500, and the payout for displaying the number of payouts of the medal 500. The number display section 8, the maximum bet button 9 for betting the maximum number of medals 500 (for example, three), the medal 5
1 bet button for betting 00 one by one
0, game progress display unit 1 for displaying the progress of the game
1, the medal return switch 12 for paying out the credited medal 500, the start lever 13 for starting the variable display game by starting the rotation of the reels 20a-20c, the rotation of the reels 20a, 20b, 20c Stop buttons 14a, 1 for stopping each
4b, 14c, a keyhole 231 into which a key for opening the front door 2 is inserted, and further, an ashtray 17 is provided at the bottom of the front surface of the front door 2.
And a tray 18 for storing the medals 500 is provided.

Further, as shown in FIG. 3, on the back side of the front door 2, the speakers 3a, 3a arranged at the positions corresponding to the back sides of the speaker parts 3, 3 and the back side of the effect display device 4a are provided. A relay board 78 (not shown in FIG. 2) that is provided and relays the wiring that connects the various electric components provided in the pachi-slot gaming machine 100 and the control device 70, and guides the medal 500 inserted from the medal insertion slot 6 to the hopper 80. Medals guide gutter 85, medals 500 paid out from the hopper 80,
There is provided a medal flow down gutter 86 for guiding the medal 500, which has been inserted from the medal insertion slot 6 but has not been accepted yet, returned from the medal guide gutter 85 to the receiving tray 18. In addition, a lower side upper side fraud prevention unit 310 having a width substantially equal to that of the front door 2 is provided at a lower portion of the front door 2.

Further, as shown in FIGS. 1 and 2, the front door 2 has an upper decorative member 31 on the front side of the base member 200.
(Above the reel display window 5), upper left and right decorative members 32, 3
2 (left and right of the reel display window 5), a decorative plate portion 16 (lower center) on which information about the pachi-slot gaming machine 100 (model name of the pachi-slot gaming machine 100, etc.) is shown on the surface, lower left and right decorative members 33, 33 (decoration) Left and right of the plate portion 16) and the saucer 18
The saucer unit 250 (under the decorative plate portion 16) and the like for configuring the.

The pachi-slot gaming machine 100 is roughly configured as described above, and a game is played as described below.

First, the start lever 13 is operated with a medal 500 inserted from the medal insertion slot 6 or with a bet made by operating the max bet button 9 or the 1 bet button 10. Then, by the stepping motor of the reel device 20, the reels 20a to 20
c is driven to rotate, whereby a variable display game in which a plurality of symbols attached to the reels 20a to 20c move in the reel display window 5 is performed. After that, the rotational drive of the reels 20a to 20c is stopped by a lapse of a predetermined time or by operating the stop buttons 14a to 14c, and in the reel display unit 5, three symbols are displayed for each reel 20a to 20c. It is displayed as a stop. In this way, as a result of the predetermined game being performed based on the fact that the medal 500 has been inserted into the medal insertion slot 6, as a result of the symbols stopped and displayed on the effective display line preset on the reel display section 5. Whether or not the medal 500 is paid out is determined according to the combination. In addition, in particular, as a result of the variable display game, the symbols stopped and displayed on the reel display unit 5 are specific display results on the display line (for example, 7, 7, 7).
Then, a special game state is generated and a predetermined game value (for example, a state in which a large number of medals 500 can be obtained) can be given. In the normal game or in the special game state, when the medals 500 are paid out, a predetermined number of medals 500 are credited, or the hopper 8
It is paid out from 0 to the saucer 18.

Next, the structure of the main part of the present invention will be described.

First, the lower base member 22 of the base member 200 which is the main structure of the front door 2 of the pachi-slot gaming machine 100.
0), for example, as shown in FIG. 3, a lower side upper side fraud prevention portion 310 (illegal prevention portion) according to the present invention is a back side surface of a standing portion 221 extending in a substantially vertical direction at a lower portion of the base member 200. It is provided so as to project rearward from 2211 (provided along the lower rear side of the front door 2). The lower side upper fraud prevention unit 310 is a long plate-shaped unit having a left-right width substantially equal to that of the lower base member 220. In addition,
The lower side upper fraudulent prevention section 310 is provided with locking portions 225 and 225 for locking the saucer unit 250 provided on the lower front surface of the lower base member 220, and a fastening for inserting a fastening member (not shown) such as a screw. In order to avoid the holes 226, ..., Strictly, it is not a flat plate shape. This lower side upper fraud prevention unit 310
Intrudes into the inside of the machine frame 1 with the front door 2 closed, particularly above the upper surface 121 of the lower face plate 120 (upper surface of the lower part of the main body frame), and the gap between the machine frame 1 and the front door 2 is incorrect. Prevent things from entering. The lower side upper side fraud prevention unit 310
Is such that it can sufficiently enter the inside of the machine frame 1 with the front door 2 closed (for example, a hopper mounting rail 81 (described later)).
The protrusion length is set so that it reaches the vicinity of the front end face 81a.

The lower surface 3 of the lower side upper fraud prevention unit 310
11 and the upper surface 121 of the lower face plate 120 (upper surface of the lower portion of the main body frame), a distance W1 is set to be equal to or more than the thickness W2 of the medal 500 used for the game of the pachi-slot gaming machine 100, while the front door The lower side 2211a of the back side 2211 of the second side lower side (back side extending downward from the lower side upper fraud prevention section) 2211a and the machine frame 1 behind it.
A distance W3 between a lower portion 2211a of the hopper mounting rail 81 (a member provided on the lower surface of the main body frame) provided on the upper surface of the lower portion and a front end surface 81a that faces the lower portion 2211a is equal to that of the medal 500 with the front door 2 closed. The diameter is set to be D1 or more. As a result, the lower side region of the lower side upper side fraud prevention unit 310 (with the interval W1) is at least one medal 5
00 constitutes a medal accommodation portion 510 capable of accommodating 00 in a lying state. It should be noted that this medal receiving portion 510 is a normal medal 500 (thickness: 1.5 to 1.8 mm, diameter: 25 m).
m) is formed to have a size capable of accommodating, but, for example, it may be formed to have a size capable of accommodating a so-called Okinawa-used medal (diameter 30 mm), or a size corresponding to the size of the medal used. It may be set to. The interval W1 is
It is desirable to set the thickness of the medal 500 to be not less than the thickness W2 of one piece and not more than the thickness of two pieces. Further, the height of the hopper mounting rail 81 is preferably set to be equal to or less than the thickness W2 of the medal 500.

Further, the lower base member 220 protrudes forward from the lower end of the upright portion 221, and supports the tray unit 250 on the upper surface, and the supporting portion 222.
223 depending from the front end of the
And a protrusion 224 that protrudes rearward to the vicinity of the front end face of the face plate 120 below the lower end of the face plate 120.

The lower base member 220 is obtained by integrally molding the lower base upper side tamper-proof portion 310 with resin or the like.

As described above, according to the pachi-slot gaming machine 100 of this embodiment, it enters the inside of the machine frame 1 with the front door 2 closed, and is located below the machine frame 1 and the front door 2. Lower side upper side fraud prevention unit 3 that prevents fraudulent objects from entering through the gap
Since 10 is provided in a state of projecting rearward along the lower side of the rear side of the front door 2, the medal 500 is configured to be difficult to be sandwiched between the front door 2 and the machine frame 1, and the front door 2 is closed. It will be easier. Therefore, it is possible to reduce the possibility that a fraudulent act such as insertion of an improper object from the space between the front door 2 and the machine casing 1 will be performed. Also, the lower side upper side fraud prevention unit 310 is not the machine frame 1 but the front door 2
The manufacturing of the machine casing 1 is facilitated because it is provided in the. Further, the lower side upper fraud prevention unit 310 and the front door 2 can be integrally molded with resin, and in this case, the front door 2 can be manufactured more easily than when the lower side upper fraud prevention unit 310 is attached.

Further, the lower surface 3 of the lower side upper fraud prevention unit 310
11 and the upper surface 121 of the face plate 120 below the lower side, the distance W1 is set to be equal to or more than the thickness W2 of the medal 500. A space W3 between the rear side surface 2211a of the part and the front end surface 81a of the hopper mounting rail 81 provided on the upper surface 121 of the lower face plate 120 behind the partial side surface W3 is a state in which the front door 2 is closed. By setting the diameter to be equal to or larger than the diameter D1 of the medal 500, the medal accommodation portion 510 capable of accommodating the medal 500 in a laid-down state is configured by the interval W1. That is, when trying to close the front door 2 with the medal 500 placed on the upper surface 121 of the lower face plate 120 on the opening side, the medal 5
00 is accommodated in the medal accommodating portion 510, and the front door 2 can be completely closed without the medal 500 being sandwiched between the lower side upper fraud prevention portion 310 and the lower face plate 120.

In this embodiment, the medal 500 is used.
Although the medal accommodating portion 510 capable of accommodating one coin is provided, the medal accommodating portion 51 is not limited to this.
The size of 0 may be any size as long as it can accommodate one or more medals 500. For example, a medal storage unit that can store two or more medals 500 may be configured.

<Modification 1> The upper surface of the lower side upper illegality preventing portion 310 of this modification 1 is an inclined surface 312 which is inclined downward toward the rear as shown in FIG. 7, for example. As a result, the medal 500 spilled from the hopper 80 or the like with the front door 2 closed is not placed on the upper surface of the lower side upper fraud prevention unit 310, but slides on the inclined surface 312 or the like so that the lower face plate. Move up 120. Therefore, the medal 50
It is difficult for 0 to be caught between the front door 2 and the hopper 80, and the front door 2 can be smoothly closed.

<Modification 2> In this modification 2, the machine frame 1 is provided with a metal member along the inner peripheral edge of the lower side of the opening, and the metal member has a chamfered shape. Further, the second modification includes a lower side lower side illegal prevention section (illegal prevention section) 320 provided along the lower back side of the front door 2 so as to be located below the lower side upper side illegal prevention section 310. It should be noted that the lower side lower fraud prevention unit 320 is provided in place of the protrusion 224 of the first embodiment.

First, as shown in FIG. 8, for example, the upper portion of the front edge of the lower face plate 120 (the inner peripheral edge of the lower side of the opening of the main body frame) has a chamfered shape. Further, the front edge of the lower face plate 120 is covered with a chamfering member (metal member) 122 formed in a curved shape along the chamfered shape. The chamfer member 122 is made of metal, and thus the chamfer member 122 enhances the strength of the lower face plate 120. The front edge of the lower face plate 120 is recessed by the thickness of the chamfer member 122, and the upper faces 121 of the chamfer member 122 and the lower face plate 120 are substantially flush with each other. There is.

Also, the lower side lower fraud prevention unit 320 has the first
While the projecting length is set longer than the projecting portion 224 of the embodiment, the lower end of the lower face plate 120 (lower lower part of the front surface of the main body frame) is lower side lower side when the front door 2 is closed. A recess 123 is formed into which the rear end portion 321 of the blocking portion 320 enters. The chamfering member 122 is also recessed along the recess 123.

For example, when closing the front door 2, the lower face plate 1
When the medal 500 is leaning against the front edge of 20, the upper portion of the medal 500 is pushed rearward by the rear end surface 313 of the lower upper fraud prevention unit 310 as shown in FIG. The back surface slides obliquely downward along the upper surface of the chamfering member 122, and the lower portion of the medal 500 is pushed forward. As a result, as shown in FIG. 10, the medal 500 escapes to the front side of the lower face plate 120 and to the lower side of the lower side fraud prevention section 320. Therefore, the front door 2
When closing the, the medal 500 is unlikely to be caught between the lower side upper fraud prevention unit 310 and the front edge of the face plate 120 below the machine casing 1. Furthermore, in the state where the front door 2 is closed, as shown in FIG.
1 is a recess 123 formed on the front end surface of the lower face plate 120.
Since it is fitted in the inside, the lower side lower side fraud prevention unit 320 can more appropriately prevent the fraudulent matter from entering from the lower space between the front door 2 and the machine casing 1.

[Second Embodiment] The pachinko gaming machine 100 of the second embodiment is the same as the first embodiment except for the points described below, and thus the same components. Are denoted by the same reference numerals and description thereof will be omitted.

The second embodiment includes a lower side upper fraud prevention unit 330 different from the lower side upper fraud prevention unit 310 of the first embodiment. Further, the machine casing 1 is also different from that of the first embodiment. Further, the front door 2 is provided with a substantially square-shaped conductive frame 400 along the peripheral portion.
Hereinafter, the conductive frame 400 and the lower side upper fraud prevention unit 33
0 and machine frame 1 will be described in detail.

First, the conductive frame 400 will be described.

The conductive frame 400 includes, for example, an upper metal plate 410 and a lower metal plate 420, which are provided at the upper and lower edges of the base member 200 so that their longitudinal directions are substantially horizontal, and the left and right sides of the base member 200. A left-side metal plate 430 and a right-side metal plate 440, each of which has a longitudinal direction substantially vertical to the edge portion of
The above four plates are connected to each other so that they have a generally square shape as a whole. Hereinafter, each component of the conductive frame 400 will be described.

First, the upper metal plate 410 is a plate-shaped member that is long in the left and right, and the width of the left and right is the upper base member 2.
The width is set to be substantially equal to the left-right width of 10 (actually, it is set to be slightly smaller than the left-right width of the upper base member 210, for example). The upper metal plate 410 is attached along the upper edge of the upper base member 210.

The lower metal plate 420 is a member which constitutes a part of the conductive frame 400 and also constitutes the rear side upright surface 18a of the tray 18. As shown in FIG. 3, for example, the lower metal plate 420 is a plate-shaped member that is long in the left-right direction, and the left-right width thereof is set to be substantially equal to the left-right width of the lower base member 220 (actually, for example, It is set to be slightly smaller than the left-right width of the lower base member 220). Here, in the lower front surface of the lower base member 220,
A saucer mounting surface 227 to which the saucer unit 250 is mounted is formed, and on this saucer mounting surface 227, the medal flow down gutter 8 is formed.
A medal payout opening 228 for paying out the medal guided down by 6 to the tray 18 is opened (see FIG. 4).
On the other hand, the lower metal plate 420 has a lower base member 22.
0 corresponding to the mounting surface covering portion 421 that covers the saucer mounting surface 227, the trough outlet covering portion 422 that covers the inclined floor surface near the outlet of the medal flow down gutter 86, and the medal payout opening 228 of the lower base member 220. The medal payout opening 423 is provided. Among these, the gutter outlet covering portion 422 is a cutout piece cut out in a substantially U shape (however, the opening side faces downward).
Is formed by bending so as to incline to the back side, and the medal payout opening 423 is also formed by forming the gutter exit covering portion 422.

The pan unit 250 is, for example, as shown in FIG.
As shown in FIG. 7, the horizontal width is set to be substantially equal to the horizontal width of the lower base member 220, and the saucer constituting portion 251 that constitutes the majority of the saucer 18 and the ashtray 17 provided next to the saucer constituting portion 251 are provided. Is roughly configured. Among these, the saucer constituting portion 251 is provided with a bottom surface, front and left and right wall portions, and an upper opening portion 252, and is formed in a saucer shape protruding forward as a whole. Has 253. A bottom metal plate 254 is attached to the saucer unit 250. That is, the bottom metal plate 254 is a member having a substantially L-shaped cross section that is long in the left and right, and one plate-shaped portion 255 covers the upper surface of the saucer constituting portion 251 in a substantially horizontal state and the other plate-shaped portion. 256 is attached to the saucer unit 250 so as to be in a substantially vertical state behind and below the one plate-like portion 255. The saucer unit 2
50 is attached to the front door 2 such that the other plate-shaped portion 256 of the bottom metal plate 254 is in contact with the lower front surface of the lower metal plate 420.

The left metal plate 430 is a vertically long plate-like member, and the vertical width thereof is set to a length extending from the upper edge portion to the lower edge portion of the base member 200. The left metal plate 430 is a member that forms a part of the conductive frame 400 and a part of the key unit 230. As the key unit 230, the base member 200 is provided.
Installed on. Specifically, the left metal plate 4
The upper edge portion of 30 is attached to the upper portion by a fastening member such as a screw through a mounting hole 431 provided in the upper edge portion and a mounting hole (not shown) provided in the left edge portion of the upper metal plate 410. It is attached to the base member 210, so that
The left metal plate 430 and the upper metal plate 410 are electrically conductive with each other. Further, the lower edge portion of the left metal plate 430 has a mounting hole 432 provided at the lower edge portion, a mounting hole (not shown) provided at the left edge portion of the lower metal plate 420, and the left side of the bottom metal plate 254. The left metal plate 430 is attached to the lower base member 220 by a fastening member such as a screw through a mounting hole (not shown) provided in the edge portion, whereby the left metal plate 430 is connected to the lower metal plate 420 and the bottom metal plate 254. It is in a state where they can mutually conduct electricity. The key unit 230 has a key device 231 for locking the front door 2 with respect to the machine casing 1 in order to keep it closed, or for opening the key to open it. It is configured.

The right metal plate 440 is a vertically long plate-like member, and like the left metal plate 430, the vertical width thereof extends from the upper edge portion to the lower edge portion of the base member 200. Is set to. This right metal plate 440
Is a member that constitutes a part of the conductive frame 400 and a part of the hinge unit 240, and is attached to the base member 200 as the hinge unit 240. Specifically, the upper edge portion of the right metal plate 440 has an attachment hole 441 provided at the upper edge portion and an attachment hole (not shown) provided at the right edge portion of the upper metal plate 410.
The right metal plate 440 and the upper metal plate 410 are electrically conductive with each other by being attached to the upper base member 210 by a fastening member such as a screw. Also, the right metal plate 44
The lower edge portion of 0 is provided in the mounting hole 442 provided in the lower edge portion, the mounting hole (not shown) provided in the right edge portion of the lower metal plate 420, and the right edge portion of the bottom metal plate 254. The lower metal plate 440 is attached to the lower base member 220 by a fastening member such as a screw through a mounting hole (not shown).
20 and the bottom metal plate 254 are electrically conductive with each other. The hinge unit 240 is
For example, a pair of upper and lower hinge devices (conductive hinge mechanism) 241
The hinge device 241 is made of, for example, metal and has conductivity.

As described above, the upper, lower, left and right metal plates 410, 420, 430 which form the conductive frame 400,
The upper and lower base members 210 and 220 are connected to each other by 440 to form the base member 200, and a substantially square-shaped conductive frame 400 is attached along the peripheral portion of the front door 2. ing.

Next, the lower side upper side fraud prevention unit 330 of the second embodiment will be described.

In the second embodiment, a lower side upper illegality preventing section 330 which is a metal member is provided at the same position in place of the lower side upper illegality preventing section 310 of the first embodiment.

For example, as shown in FIG. 11, the lower side upper fraud prevention section 330 is a member formed of metal and having a substantially L-shaped cross section that is long in the left and right, and one plate-shaped section 331.
While projecting rearward in a substantially horizontal state, the other plate-shaped portion 332 is closer to the front side than the one plate-shaped portion 331, and
It is provided on the lower portion of the front door 2 so that it is on the lower side and is in a substantially vertical state. Here, at the lower portion of the lower base member 220, the other plate-shaped portion 332 of the lower side upper side fraud prevention portion 330 is provided.
Has an opening 229 that is substantially equal to or slightly larger than the area of the other plate-shaped portion 322.
Of the lower metal plate 420 is in contact with the lower surface of the lower metal plate 420. The lower side upper fraud prevention unit 330 has a lower metal plate 420 and a bottom metal plate 254 through which a fastening member (not shown) such as a screw is inserted through an insertion hole formed in the lower side upper fraud prevention unit 330. It is fixed to the lower metal plate 420 and the bottom metal plate 254 by passing through the mounting holes (not shown) formed in the other plate-shaped portion 256. As described above, the lower side upper illegality prevention unit 330, the lower metal plate 420, and the bottom metal plate 254 are in a state of being capable of electrically conducting each other.

The lower side upper fraud prevention unit 330 has the lower side upper fraud prevention unit 3 when the front door 2 is attached to the machine casing 1.
The lower surface 333 of the plate 30 and the upper surface 121 of the lower face plate 120 are provided on the front door 2 so that their vertical positions are substantially equal to each other. Therefore, when the front door 2 is closed, the lower surface 333 of the lower side upper side fraud prevention unit 330 comes into contact with the upper surface of the chamfering member 124 (described later) provided on the front side portion of the lower face plate 121, and the chamfering member. 124 and the lower side upper side fraud prevention unit 330 are in a state in which they can electrically conduct each other. The rear portion of the one plate-shaped portion 331 of the lower side upper fraud prevention portion 330 is formed in a state of being bent upward in an oblique direction, which facilitates closing the front door 2.

In the second embodiment, the front door 2 is constructed as described above.

Next, the machine casing 1 of the second embodiment will be described.

The machine frame 1 according to the second embodiment is composed of the face plates 110, 120, 130, 1 which are included in the machine frame 1 and which are deep in the vertical and horizontal directions.
Each of 40 and 150 is plated on at least one side 60
It is formed of plywood or the like having 0 applied thereto, and is assembled in a box shape so that the surface to which the plating 600 is applied constitutes the inner surface 1a of the machine frame 1. That is, almost the entire inner surface 1a of the machine casing 1 is a plated surface.

A chamfering member 124 formed of a metal in a curved shape is provided at the front edge of the lower face plate 120.
However, the rear end thereof is provided so as to contact the plating 600 portion. The chamfering member 1 according to the second embodiment
24 is different from the chamfering member 122 of Modified Example 2 described above, since the front end surface of the lower face plate 120 does not have the recess 123,
At the same time, the recess 123 is not formed in the chamfering member 124. As a result, the chamfering member 124 and the plating 6
00 is in a state in which it can conduct electricity.

Further, the front door 2 has the machine frame 1 as follows.
Is attached to.

That is, the left and right face plates 1 constituting the machine casing 1
A mounting member 242 for mounting a pair of upper and lower hinge devices 241, 241 on one of the inner surfaces of 30, 140, specifically, on the inner surface of the left face plate 130 (when viewed from the front).
After being fixed by a fastening member (not shown) such as a screw, both hinge devices 241 are attached to the mounting member 242.
Is attached via a fastening member (not shown) such as a screw, so that the front door 2 is rotatably attached to the machine frame 1 (see FIG. 2). Therefore, the conductive frame 400 provided on the front door 2 is rotatably attached to the machine frame 1 through the conductive hinge device 241 so that the plating 60 of the machine frame 1 can be performed.
The front door 2 is pivotally supported by the inner surface 1a having the number 0.
The conductive frame 400 and the inner surface 1a of the machine frame 1 are in a state of being capable of electrically conducting each other.

As shown in FIG. 11, when the front door 2 is closed,
The lower surface 333 of the lower side upper fraud prevention unit 330 contacts the upper surface of the chamfering member 124 provided on the front side portion of the lower face plate 120, and the chamfer member 124 and the lower side upper fraud prevention unit 33.
0 and 0 are in a state of being able to conduct electricity mutually.

As described above, according to the pachi-slot gaming machine 100 of this embodiment, the lower side upper fraud prevention section 330 is provided in the lower portion on the back side of the front door 2, and the machine frame 1 is electrically conductive. As a means, the plating 600 is provided along the inner surface 1a, while the front door 2 is provided with a substantially square V-shaped conductive frame 400 along the peripheral edge thereof.
However, at one end thereof, through the conductive hinge device 241,
Since it is pivotally supported on the inner surface 1a of the machine frame 1 so as to be rotatable with respect to the machine frame 1 and electrically connected to the plating 600 via the hinge device 241 and the lower side upper fraud prevention unit 330, respectively, the front door It is possible to move the electric charge generated at 2 from the conductive frame 400 to the plating 600 via the hinge device 241 and the lower side upper side illegal blocking portion 330, respectively. Therefore, the discharge area of the charges generated in the front door 2 increases,
The charges can be efficiently discharged, and due to noise due to static electricity generated in the front door 2, for example, the control device 7
It is possible to suitably prevent the electrically driven internal device such as 0 from malfunctioning.

Further, since the front edge of the lower face plate 120 of the machine frame 1 is chamfered, when the front door 2 is to be closed, the lower side upper fraud prevention unit 330 and the machine frame 1 are closed. It is difficult for the medal 500 to be caught between the lower face plate 120 and the front edge of the face plate 120. Therefore, the front door 2 can be smoothly closed. Further, since the machine casing 1 is provided with the chamfering member 124 that is metal-formed along the front edge of the lower face plate 120, the rigidity of the lower portion of the machine casing 1 is increased and the strength of the machine casing 1 is increased. You can

In this embodiment, the plating 600 is applied along the inner surface 1a of the machine frame 1 as the electric conduction means, but the present invention is not limited to this. A conductive member, a plated resin member, or a conductive member made of a conductive resin may be used. Among these, particularly when a metal plate is used as the conductive member, the rigidity of the machine casing 1 can be increased to increase the strength of the machine casing 1.

<Modification 3> Modification 3 is the same as the second embodiment except for the following description, and therefore, the same components are designated by the same reference numerals and their description is omitted. Is omitted. In the third modified example, the electrically conductive frame 400 of the front door 2 and the chamfering member 124 exemplified as the metal member of the machine frame 1 (main body frame) are electrically connected to each other, so that the front door 2 is in the closed state. Front door open state detection means (for example, configured by the control device 70 or the like). That is, as shown in FIG. 12, for example, the control device 70 is connected to the conductive frame 400 via the conductor wire 71A and is connected to the chamfering member 124 via the conductor wire 71B. Further, in the case of this modification 3, the plating 600 applied to the inner surface 1 a of the machine frame 1 and the chamfering member 12
4 and 4 are insulated from each other. Then, the control device 70 closes the front door 2 so that the lower side upper fraud prevention unit 330 (which is electrically connected to the conductive frame 400 as described above) comes into contact with the chamfering member 124. When the front door 2 is in the closed state, the front upper door 2 is opened, and the lower side upper fraud prevention unit 330 and the chamfering member 124 are brought into non-contact with each other. When it is in the insulated state, it is determined that the front door 2 is in the open state. When it is determined that the front door 2 is in the open state, for example, a buzzer is output to inform that the front door 2 is in the open state. Thus, according to the third modification, the open / closed state of the front door 2 can be detected. In the case of the modified example 3, the chamfering member 124 may be set to a size that covers only the key side portion (the side opposite to the shaft support side), and may be attached so as to cover only the key side portion.

The present invention is not limited to the pachi-slot gaming machine 100 of this embodiment. For example, other pachislo gaming machines, slot machines such as pachislo gaming machines for playing games using game balls instead of medals. It is generally applicable. Further, in this embodiment, the fraud prevention portion is provided on the lower side of the front door 2, but the invention is not limited to this. As long as it is possible to prevent an intruder from entering from the distance between the front door 2 and the front door 2, the front door 2 may be provided at any place such as the upper side of the front door 2. further,
The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

[0074]

According to the first aspect of the invention, the front door enters the inside of the main body frame with the front door closed, and an illegal substance enters from the space between the main body frame and the front door. Since the fraud prevention portion for preventing such a situation is provided in a state of protruding rearward, the medal is not easily caught between the front door and the main body frame, and the front door is easily closed. Therefore, it is possible to reduce the possibility that a fraudulent act such as insertion of a fraudulent object from the gap between the front door and the main body frame is performed. Further, since the fraud prevention portion is provided on the front door instead of the main body frame, the main body frame can be easily manufactured. Further, the fraud prevention portion and the front door can be integrally molded with resin, and in this case, the front door can be manufactured more easily than when the fraud prevention portion is attached.

According to the second aspect of the present invention, the fraud prevention unit includes the lower side upper fraud prevention unit provided along the lower back side of the front door, so that the front door is closed. , It is possible to prevent the insertion of an illegal article from the space between the front door and the lower side of the main body frame.

According to the third aspect of the invention, the distance between the lower surface of the lower side upper fraud prevention portion and the lower upper surface of the main body frame on the lower side is set to be equal to or greater than the thickness of the medal. The front door is closed by the distance between the back side surface that extends below the upper fraudulent prevention portion on the lower side of the door and the front end surface that faces the back side surface of the member provided on the upper surface of the lower portion of the main body frame behind it. By setting the diameter to be equal to or larger than the diameter of the medal in the state, the medal accommodating portion capable of accommodating the medal in the state of being laid down is configured with the above-mentioned interval. That is, when trying to close the front door with a medal placed on the opening side of the lower surface of the main body frame, the medal will be accommodated in the medal accommodating portion, and the lower side upper fraud prevention portion and the main body frame will be separated. The front door can be completely closed without any medals sandwiched between them.

According to the fourth aspect of the invention, since the upper surface of the lower side upper fraud prevention section is inclined downward toward the rear, the medal is not placed on the upper surface of the lower side upper fraud prevention section. , Move to the upper surface of the lower part of the main frame by sliding on the inclined surface. Therefore, the medal is unlikely to be caught between the front door and the main body frame, and the front door can be closed smoothly.

According to the fifth aspect of the present invention, the fraud prevention unit includes a lower side lower fraud prevention unit provided along the lower back side of the front door so as to be located below the lower side upper fraud prevention unit. Therefore, it is possible to more appropriately prevent the insertion of an unauthorized object from the gap between the front door and the lower side of the main body frame while the front door is closed.

According to the sixth aspect of the present invention, the front door of the main body frame is formed with the recessed portion into which the rear end portion of the lower side lower illegality preventing portion enters with the front door closed. In the closed state, it is possible to more appropriately prevent the insertion of an illegal article or the like from the gap between the front door and the lower side of the main body frame.

According to the invention of claim 7, the main body frame is
An electrically conductive means for electrically conducting along the inner surface of the body frame;
The front door is provided with a substantially square-shaped conductive frame along the peripheral portion of the front door, and the conductive frame has one end thereof rotated with respect to the main body frame through a conductive hinge mechanism. The conductive frame is movably supported on the inner surface of the main body frame, and the conductive frame is electrically connected to the electric conduction means through the hinge mechanism and the tampering prevention unit. Therefore, the charges generated at the front door can be moved from the conductive frame to the electric conduction means via the hinge mechanism and the tampering prevention unit, respectively. Therefore, the discharge area of the charges generated at the front door increases, so that the charges can be efficiently discharged. As a result, it is possible to preferably prevent malfunction of an electrically driven internal device such as a control device due to noise caused by static electricity generated at the front door. Further, for example, when the electric conduction means is made of metal,
The rigidity of the main body frame can be increased and the strength of the main body frame can be increased.

According to the eighth aspect of the present invention, since the metal member provided along the inner peripheral edge of the lower side of the front opening of the main body frame has a chamfered shape, when closing the front door, Moreover, it is difficult for the medal to be caught between the fraud prevention section and the inner peripheral edge of the lower side of the front opening of the main body frame. For example, when trying to close the front door with the medal leaning against the chamfered inner peripheral edge, the top of the medal is pushed backward by the fraud prevention unit, while the back surface of the medal is The lower part of the medal is pushed toward the front by sliding obliquely downward along the peripheral edge. As a result, the medals escape to the front side of the lower part of the main body frame and to the lower side of the front door, so that the front door can be closed smoothly. Moreover, since the main body frame is provided with the metal member along the inner peripheral edge of the lower side of the front opening, the rigidity of the lower part of the main body frame can be increased and the strength of the main body frame can be increased.

According to the ninth aspect of the present invention, the metal member is arranged along the inner peripheral edge of the lower side of the front opening of the main body frame, and the substantially rectangular shape is arranged along the peripheral edge of the front door. Based on electrically connecting the conductive frame, the conductive frame and the metal member of the main body frame to each other, the front door open state detection means for detecting the closed state of the front door, and, therefore,
The open / closed state of the front door can be detected by the front door open state detecting means.

[Brief description of drawings]

FIG. 1 is a front view showing a pachi-slot gaming machine exemplified as one mode of a slot machine according to the present invention.

2 is a perspective view showing a state in which a front door of the pachi-slot gaming machine of FIG. 1 is opened.

FIG. 3 is a rear view of the pachi-slot gaming machine of FIG.

4 is a cross-sectional view of an essential part of a lower base member included in the pachi-slot gaming machine of FIG.

5 is a cross-sectional view of essential parts showing the vicinity of a lower side upper side fraud prevention part provided in the pachi-slot gaming machine of FIG.

FIG. 6 is a cross-sectional view of essential parts showing a state where medals are accommodated in a medal accommodating portion below a lower side upper fraud prevention unit.

FIG. 7 is a diagram for explaining a modified example 1.

FIG. 8 is a diagram for explaining a second modification.

FIG. 9 is a diagram for explaining a second modification.

FIG. 10 is a diagram for explaining a second modification.

FIG. 11 is a diagram illustrating a lower side upper side fraud prevention unit according to the second embodiment.

FIG. 12 is a diagram for explaining a third modification.

[Explanation of symbols]

1 machine frame (body frame) 2 front door 70 Control device 310, 330 Lower side upper fraud prevention unit 320 Lower side lower fraud prevention unit 220 Lower base member 500 medals 510 medal storage 122, 124 Chamfer member (metal member) 400 conductive frame 410 Upper metal plate 420 Lower metal plate 430 Left metal plate 440 Right metal plate 241 Hinge device (conductive hinge mechanism) 100 pachislot machine 600 plating

Claims (9)

[Claims] 1. A slot machine comprising a box-shaped main body frame having an open front surface, and a front door rotatably supported by the main body frame, wherein the front door is closed. In this state, an illegitimate blocking portion that enters the inside of the main body frame and prevents illicit objects from entering from the space between the main body frame and the front door is provided in a state of protruding rearward. Slot machine. 2. The tampering prevention section is provided along a lower side of a back side of the front door, and includes a lower side upper tampering section which enters an upper side of a lower surface of the main body frame in a state where the front door is closed. The slot machine according to claim 1, wherein: 3. An interval between a lower surface of the lower side upper fraud prevention section and a lower surface of the main body frame lower side thereof is set to be equal to or more than a medal thickness, while an upper side of the lower side of the front door is set. The distance between the back side surface extending below the fraud prevention section and the front end surface of the member provided on the upper surface of the lower part of the main body frame opposite the back side surface behind the front side surface is closed when the front door is closed. 3. The slot machine according to claim 2, wherein the distance constitutes a medal accommodating portion capable of accommodating medals in a sideways state by setting the diameter to be equal to or larger than the diameter. 4. The slot machine according to claim 2, wherein an upper surface of the lower side upper side fraud prevention section is inclined downward toward the rear. 5. The fraud prevention section includes a lower side lower fraud prevention section provided along the lower back side of the front door so as to be positioned below the lower side upper fraud prevention section. The slot machine according to any one of claims 2 to 4, wherein: 6. A recess formed in a lower part of the front surface of the main body frame, into which a rear end portion of the lower side lower fraud prevention portion is inserted when the front door is closed. Slot machine. 7. The main body frame is provided with a conductive electric conducting means along an inner surface of the main body frame, and the front door has a substantially square V-shaped conductive frame along a peripheral portion of the front door. The conductive frame is pivotally supported at its one end on the inner surface of the main body frame so as to be rotatable with respect to the main body frame via a conductive hinge mechanism, and the conductive frame has the hinge mechanism. The slot machine according to any one of claims 1 to 6, wherein the slot machine is electrically connected to the electric conduction means via the tampering prevention section and the tampering prevention section, respectively. 8. The body frame includes a metal member along an inner peripheral edge of a lower side of the front opening,
The slot machine according to claim 7, wherein the metal member has a chamfered shape. 9. A metal member arranged along an inner peripheral edge of a lower side of a front opening of the main body frame, and a substantially square-shaped conductive frame arranged along a peripheral edge of the front door. A front door open state detection means for detecting a closed state of the front door based on electrically connecting the conductive frame and the metal member of the main body frame to each other. The slot machine according to any one of 1 to 6.