JP4915742B2 - Fraud prevention structure - Google Patents

Description

  The present invention relates to an anti-fraud structure, and more particularly to an anti-fraud structure that prevents the intrusion of illegal materials into a gaming machine and does not hinder the opening and closing of a frame such as a machine frame.

  In a ball game machine such as a pachinko machine, which is a typical game machine, a balled game medium (hereinafter referred to as a ball) flows down on the game board surface, and the ball is gauged on the game board surface in the process of flowing down. (It is also called a nail.) Or turns while colliding with the impeller, and the flow direction changes. As a result, if a ball wins at various winning holes arranged on the surface of the game board, a predetermined prize ball is paid out. On the other hand, if a ball flows into the out port without winning any prize hole, no prize ball is paid out. . The player can enjoy the game by demonstrating his / her skill in the ball, or expecting the winning of the ball and the payout of the prize ball while utilizing the contingency in the flow of the ball.

  Such a gaming machine is configured so that the entire device is surrounded by a plurality of frames (hereinafter referred to as a frame), smooth flow of the ball, prevention of unauthorized access to the game board by the player, It realizes various functions such as improved installation in game machine halls and improved maintainability.

  Specifically, a housing frame formed of wood, resin, metal or the like surrounds mainly the upper and lower surfaces and the left and right side surfaces of the entire gaming machine to constitute a frame as a part of the gaming machine. A machine frame is disposed in front of the housing frame, that is, on the player side so as to be openable and closable with respect to the housing frame, and the machine frame holds the game board. This machine frame also constitutes a frame as a part of the gaming machine. On the rear side of the machine frame, the movable members arranged on the game board surface are controlled, and the gaming state (for example, “hit state”, “normal state”, “probability variation state”, “short-time state”) is controlled. And a payout device for paying out balls are arranged.

  In this way, the control device of the gaming machine is protected by being surrounded by the casing frame or the machine frame, but some players have celluloid or piano wire through the gap between the casing frame and the machine frame. Some people try to perform unauthorized operations on these control devices by intruding unauthorized materials such as these. By such operations, if the prize ball is illegally obtained by illegally inducing a “hit” or forcibly operating the payout device, the gaming machine hall will be greatly damaged. The prevention of intrusion of unauthorized materials in gaming machines has become an important issue.

  Thus, for example, Patent Document 1 discloses a structure for preventing an unauthorized operation performed by allowing an unauthorized material to enter between the frame body and the frame body. The gaming machine described in Patent Literature 1 has a cabinet box and a front door that covers the front surface of the cabinet box. A protruding side toward the front door is formed at the front opening edge of the cabinet, and the protruding side is accommodated in the front door when the front door is closed. That is, the cabinet and the front door are closed with an overlap, making it difficult for an unauthorized material to enter. Even if an unauthorized material tries to enter through the gap between the cabinet and the front door, it will hit the protruding side and prevent the entry.

JP 2005-198949 A

  In the structure of the gaming machine described in Patent Document 1, in order to more reliably prevent the intrusion of unauthorized materials, the protruding amount of the protruding side must be made larger. However, if the protruding amount of the protruding side is increased, the locus drawn by the front door at the time of opening and closing interferes with the protruding side, and the front door cannot be smoothly opened and closed.

  In this case, a space for avoiding interference must be provided between the protruding side and the front door at the time of closing. Then, the unauthorized material that is blocked from entering by the protruding side can enter the gaming machine through the space. That is, in order to prevent the intrusion of unauthorized materials, the closeness between the protruding side and the front door is also important.

  Therefore, in the structure of the gaming machine described in Patent Document 1, it is impossible to achieve different purposes of preventing intrusion of unauthorized materials and smoothing the opening / closing operation of the frame. In addition, even if it forms so that a protrusion side may be formed in the front door side and it may be accommodated in a cabinet, the same problem will arise.

  The present invention has been made in view of the above circumstances, and is capable of smoothly opening and closing the frame body while suitably preventing unauthorized materials from entering between the frame body and the frame body. It is an exemplary problem to provide a gaming machine.

  In order to solve the above-described problems, an anti-fraud structure as an exemplary aspect of the present invention is configured to open and close one of a pair of frames that are swingably connected to each other and surround a gaming machine. A first tamper-proof plate disposed on an end side so as to be swingable by an axis substantially parallel to a connecting shaft of the pair of frame bodies; and an open / close end of the pair of frame bodies in the closed state of the pair of frame bodies A first fraud prevention plate that can be in close contact with the first frame to prevent intrusion of unauthorized materials inserted in the gap on the side in a predetermined direction, and has a receiving surface formed on the open / close end side of the other frame body The first tamper-proof plate is configured to swing in a direction in which the pair of frames are closely attached to the receiving surface with the closing operation of the pair of frames, and to be separated from the receiving surface in accordance with the opening operation of the pair of frames. Move.

  Since the first fraud prevention plate arranged on one frame is in close contact with the receiving surface formed on the other frame in the closed state, it is possible to prevent unauthorized materials from entering through the gap on the open / close end side of the frame. It can prevent suitably. In addition, since the first fraud prevention plate swings in a direction away from the receiving surface with the opening operation of the pair of frames, the first fraud preventing plate does not interfere with the receiving surface when opened. Therefore, the first fraud prevention plate and the receiving surface can be tightly closed without any gap, and the intrusion of the fraudulent material can be prevented more firmly. Moreover, even if the first fraud prevention plate is formed larger to increase the intrusion prevention effect of the fraudulent material, the smooth opening operation of the frame body is not hindered.

  The fraud prevention plate is preferably configured to be in close contact with the receiving surface over the entire vertical width on the open / close end side of the frame body, thereby providing a strong fraud prevention structure. Here, the unauthorized material is inserted by a player or the like through a gap between the frame body in order to perform an unauthorized operation on a device or the like inside the gaming machine, for example, a piano wire, a cell board, etc. Can be mentioned.

  The first fraud prevention plate may further include a tight means for swinging in the tight direction. Since the first fraud prevention plate swings in the tight direction by the tight means, it is possible to prevent the unauthorized material from entering more firmly. As the close-contact means, the closing operation of the frame body is detected and the first fraud prevention plate is electrically swung by a motor, or the first fraud prevention plate is interlocked with the closing operation of the frame body. It may be a gear member that swings.

  A contact surface formed on the other frame facing the one frame in the closed state of the pair of frames, and the tight means is formed to be interlocked with the first fraud prevention plate; The interlocking portion may be configured such that when the interlocking portion is pushed into the contact surface in accordance with the closing operation, the first fraud prevention plate swings in the tight direction and closely contacts the receiving surface.

  When the interlocking portion is pushed into the contact surface in accordance with the closing operation, the first tamper-proof plate comes into close contact with the receiving surface, so that the first tamper-proof plate and the receiving surface are securely connected at the time of closing. Can be made. Further, the intrusion of unauthorized materials can be effectively prevented with a simple structure in which the interlocking portion is formed on the first unauthorized fraud prevention plate.

  In the closed state, the interlocking unit may also function as a second fraud prevention plate that prevents the intrusion of unauthorized material in a direction different from the predetermined direction. Since the interlocking portion functions as the second fraud prevention plate, the first fraud prevention plate and the second fraud prevention plate can make intrusion of unauthorized material even more difficult. Even when the unauthorized material whose entry has been blocked by the first fraud prevention plate is directed in a direction different from the predetermined direction, the second fraud prevention plate can prevent the entry.

  The first fraud prevention plate may further include a separation unit that swings in the separation direction. Since the first fraud prevention plate is separated from the receiving surface by the separating means, the first fraud preventing plate and the receiving surface do not interfere when the frame is opened.

  Further objects and other features of the present invention will become apparent from the preferred embodiments described below with reference to the accompanying drawings.

  According to the present invention, by providing a fraud prevention plate on the frame surrounding the periphery of the gaming machine, the fraud prevention plate can be used to prevent the intrusion of fraudulent material inserted through the gap of the frame. It is possible to prevent the opening / closing operation from being hindered.

  In addition, even if there is a gap between the frames, it is possible to suitably prevent intrusion of unauthorized material inserted from the frame, so that dimension management is not performed with high accuracy so that the gap between the frames is sufficiently small. As a result, it is possible to contribute to the suppression of component costs.

[Embodiment 1]
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a pachinko machine 2 as a gaming machine having a fraud prevention structure according to Embodiment 1 of the present invention. This pachinko machine 2 includes a housing frame (frame body) 4, a game board (game device body) 6, a machine frame (frame body) 8, a front glass (front transparent plate) 10, a decorative frame (front frame) 12, a storage The pan 14 has a ball launch unit (not shown). The pachinko machine 2 includes a combination pachinko machine, an enclosed circulation pachinko machine, a sparrow ball machine, and the like.

  The housing frame 4 is a frame for enclosing the pachinko machine 2 and is configured to have a substantially rectangular shape in plan view. In Embodiment 1, aluminum is used as the metal material, but iron or the like can also be used. In addition to the metal material, wood or resin can also be used. The housing frame 4 surrounds the upper and lower surfaces and the left and right side surfaces of the pachinko machine 2 and is connected to swing and support the machine frame 8 and the decorative frame 12 on the left side as viewed from the front surface (that is, the player side). A shaft 22 is provided.

  The housing frame 4 is swingably connected to a machine frame 8 (described later) so that the housing frame 4 can be opened and closed, and the housing frame 4 and the machine frame 8 constitute a pair of frames. The housing frame 4 has a function of protecting various devices inside the pachinko machine 2 and preventing unauthorized access to these devices.

  FIG. 2 is an external perspective view of the pachinko machine 2 showing a state in which the machine casing 8 is opened. A contact surface 4a and a receiving surface 4b are formed on the opposite side of the connecting shaft 22 in the left-right direction of the housing frame 4 (hereinafter referred to as the open / close end side) (see also FIG. 3A). The contact surface 4a has a height extending over the entire width of the inside of the housing frame 4 and is formed so as to be substantially flush with the opening edge of the front surface side (player side) of the housing frame 4. The front side of the side plate 4c that covers the open / close end side surface of the housing frame 4 is bent at a substantially right angle. The receiving surface 4b is a surface formed so as to extend substantially at right angles from the end 4d of the contact surface 4a toward the rear surface, and is a rail member having a U-shaped cross section disposed on the rear surface side of the contact surface 4a. 5 is formed. The rail member 5 also has a function as a reinforcing material that reinforces the structure of the housing frame 4. Similarly to the contact surface 4a, the receiving surface 4b also has a height that extends over substantially the entire vertical width inside the housing frame 4. In the first embodiment, the contact surface 4a and the receiving surface 4b are configured by separate members, but may of course be integrally formed. The contact surface 4a and the receiving surface 4b have a function as an anti-fraud structure that prevents the intrusion of an improper material inserted through a gap between the housing frame 4 and the machine frame 8, and will be described in detail later.

  The game board 6 is a game apparatus body for realizing a game by flowing down the ball 20 as a game medium in the pachinko machine 2, and is included in the pachinko machine 2. A rail ornament 26 is attached to the game board surface 6a of the game board 6 in a substantially circular shape so as to surround the periphery, and an inner side surface 26a of the rail ornament 26 is erected with respect to the game board surface 6a to define a game area 6b. is doing. A symbol display device 7 is provided at a substantially central portion in the game area 6b. A large number of gauges (not shown), a normal winning opening 28, a starting winning opening 29, a large winning opening 30, an out opening 32, and other various objects (for example, an impeller, etc.) are provided around the symbol display device 7. ) Is arranged.

  When the ball 20 is launched toward the upper part in the game area 6b by a ball launching device (not shown), the ball 20 collides with the gauge and flows down in the game area 6b while changing the flow direction. In the middle of the flow, a certain thing wins the regular winning opening 28 and triggers a certain number of prize ball payouts, and a certain thing goes out of the pachinko machine 2 from the out opening 32 without winning any of the winning openings. And discharged.

  In the first embodiment, the pachinko machine 2 is illustrated as a gaming machine, and the gaming board 6 is illustrated as a gaming apparatus body. However, when the gaming machine is a pachislot machine, the spinning body corresponds to a gaming apparatus body that realizes a game using a coin as a gaming medium.

  The symbol display device 7 is composed of, for example, a liquid crystal display device, an organic EL display, an LED, and the like, and is provided in the approximate center of the game board 6 so as to be visible from the player side, and an image is displayed on a display screen (video display surface) 7a. Display. During a game, a display symbol composed of, for example, a three-digit number or a character is variably displayed on the display screen 7a as a game effect (symbol change effect).

  Using this symbol display device 7, a symbol variation effect is performed by lottery performed inside the pachinko machine 2, and the resulting stop mode becomes a predetermined mode (for example, “7, 7, 7”). A “hit” game is constructed that gives the player a benefit in some cases.

  The machine frame 8 surrounds the pachinko machine 2 and is a frame body for holding the game board 6. An attachment opening for attaching the game board 6 is formed in the vicinity of the center of the machine frame 8. An attachment portion for removably attaching the game board 6 is provided around the attachment opening, and the machine frame 8 is configured to surround the game board 6. Further, on the rear surface of the game board 6, a ball payout device for paying out the balls 20, a ball discharge device for discharging the winning balls, and a mechanism board for accommodating a control board for performing various controls of the pachinko machine 2 are also arranged. However, the details and illustration are omitted.

  A notch 8 b is formed in the opening / closing end side rear edge 8 a of the machine frame 8. The notch 8b is formed over substantially the entire vertical width inside the machine casing 8, and can accommodate a tip portion 16d of the second plate 16b described later. A protrusion 8 c is formed on the inner surface of the machine frame 8 on the opening / closing end side. The protrusion 8c is for fixing one end of a compression spring (spring member) 18 described later.

  The machine frame 8 is disposed on the front surface side of the housing frame 4 and is swingably supported by the housing frame 4 on the connecting shaft 22 so that the front surface of the machine frame 8 can be opened and closed with respect to the housing frame 4. The machine frame 8 constitutes a pair of frame bodies.

  The machine frame 8 has a guide plate 16 and a compression spring (spring member) 18 that function as a tamper-proof structure on the open / close end side.

  The guide plate 16 is configured so that a first plate (first fraud prevention plate) 16a and a second plate (second fraud prevention plate) 16b have a substantially L-shaped cross section. A plate shaft 19 that is substantially parallel to the connecting shaft 22 is swingably supported by the machine frame 8, and the position of the plate shaft 19 is a connecting portion between the first plate 16a and the second plate 16b. In addition, the first plate 16a and the second plate 16b are formed with a height extending over substantially the entire vertical width inside the machine frame 8, similarly to the contact surface 4a and the receiving surface 4b.

  The first plate 16a is formed to extend straight from the plate axis 19 in the radial direction. The second plate 16b is configured to be connected to the first plate 16a, thereby exhibiting a function as an interlocking portion that can be interlocked with the first plate 16a. The 2nd plate 16b has the base end part 16c and the front-end | tip part 16d, and is connected and comprised so that these may exhibit a non-right-angled crank shape. The base end portion 16c and the tip end portion 16d may be connected so as to exhibit a right-angled crank shape. However, as in the first embodiment, a non-right-angled crank shape (that is, obtuse angle connection) is used. As a result, the second plate 16b is pushed by the contact surface 4a (the swinging operation of the guide plate 16; see also FIG. 3B).

  One end of the compression spring 18 is fixed to the protruding portion 8c, and the other end is fixed to the second plate 16b. The compression spring 18 biases the second plate 16b in the direction indicated by the arrow X.

  In the first embodiment, “a pair of frames” is composed of the machine frame 8 and the housing frame 4, and the machine frame 8 has the first plate 16 a as a first fraud prevention plate. The casing frame 4 functions as the “other frame”. On the contrary, the first plate 16a may be disposed on the housing frame 4 side so that the housing frame 4 is configured as “one frame” and the machine frame 8 is configured as “the other frame”. .

  The front glass 10 is a transparent plate that is spaced apart from the game board 6 by a certain distance or more. The front glass 10 is formed of transparent flat glass and is held by the decorative frame 12, and has a function of forming a flow-down space where the ball 20 flows down between the game board 6 and the player can visually recognize the game board 6 through the front glass 10. Thus, the function of ensuring visibility and the function of preventing unauthorized access so that the player cannot illegally access (contact) the game board 6 are exhibited.

  Of course, a resin material such as transparent acrylic may be used as the front transparent plate in addition to the front glass 10 made of glass. In the first embodiment, the front glass 10 is held by the decorative frame 12, but the front glass 10 is attached to the front surface of the game board 6 and is held by the machine frame 8 together with the game board 6. It may be configured.

  The decorative frame 12 is a frame that surrounds the pachinko machine 2, and has a function of holding the front glass 10 by being swingably supported by a connecting shaft 22 in front of the machine frame 8 so as to be opened and closed forward. The decorative frame 12 is formed with a window portion 12a through the held front glass 10 so that the game board 6 disposed behind the decorative frame 12 can be visually recognized. A decoration member 12b for decorating the pachinko machine 2 and producing a game is arranged above the window 12a.

  The storage tray 14 is disposed on the front side of the pachinko machine 2 and below the front glass 10 to store the sphere 20. The storage tray 14 includes an upper tray 14a that stores a sphere 20 that is guided to the launch unit, and a lower tray 14b that is disposed below and receives the sphere 20 discharged from the upper tray 14a. In addition, the upper plate 14a and the lower plate 14b may be comprised separately, and the storage plate 14 may be comprised only by the upper plate 14a without the lower plate 14b.

  The upper plate 14a has a function of receiving the sphere 20 paid out from the pachinko machine 2 as a giveaway sphere, and a function of storing the sphere 20 so as to guide the sphere 20 to a launch unit via a sphere supply device (not shown). ing. At the end of the game, the player can discharge the ball 20 from the upper plate 14a to the lower plate 14b by operating the ball discharge button 14c.

  The firing unit is for firing (bulleting) the ball 20 sent from the upper plate 14a to the firing position by the ball supply device toward the upper part of the game area 6b. The ball launcher includes, for example, a launcher that shoots the ball 20 at the launch position, a launch motor that drives the launcher, a launch spring that energizes the launcher and generates a force for the bullet. The unit is configured and attached to the machine casing 8.

  For launching the ball by the launch unit, a launch handle 34 is provided below the front surface of the pachinko machine 2 to realize on / off of the launch of the ball and adjustment of the launch intensity based on the operation of the player.

  Next, the operation of the guide plate 16 during the opening / closing operation of the machine casing 8 with respect to the housing frame 4 will be described with reference to the drawings.

  As shown in FIG. 3A, in the opened state of the housing frame 4 and the machine frame 8, the tip portion 16d of the second plate 16b is urged in the direction indicated by the arrow X by the compression spring 18, The opening / closing end side rear edge 8a of the machine frame 8 protrudes to the rear side.

  As shown in FIG. 3 (b), the opening / closing end side rear edge 8 a of the machine frame 8 is in contact with the opening / closing end side front edge 4 e of the casing frame 4 in accordance with the closing operation of the machine frame 8 with respect to the casing frame 4. Further, the tip portion 16d of the second plate 16b contacts the contact surface 4a. With the closing operation of the machine casing 8, the second plate 16 b is pushed into the contact surface 4 a and the entire guide plate 16 swings in the direction indicated by the arrow Y against the urging force of the compression spring 18. As the guide plate 16 swings, the first plate 16a swings in a direction in which the first plate 16a is in close contact with the receiving surface 4b. That is, the second plate 16b exerts a function as a tight unit that is pushed into the contact surface 4a to tightly contact the first plate 16a with the surface 4b. As shown in FIG. 3C, when the machine casing 8 is completely closed, the base end portion 16c of the second plate 16b is pushed in by the contact surface 4a, and the first plate 16a is in close contact with the receiving surface 4b. It is like that. That is, the first plate 16a closely contacts the receiving surface 4b in conjunction with the second plate 16b being pushed into the contact surface 4a.

  Further, the second plate 16b is disposed at a position facing the contact surface 4a in a closed state of the housing frame 4, and a tip portion 16d thereof is in close contact with the notch 8b.

  On the other hand, during the opening operation of the machine frame 8 with respect to the housing frame 4, the first plate swings away from the receiving surface 4 b by the biasing force of the compression spring 18, contrary to the closing operation described above. Therefore, even if the length from the plate axis to the tip of the first plate 16a is increased, the first plate 16a is separated from the receiving surface 4b with the opening operation of the machine frame 8, and therefore the first plate 16a is received by the receiving surface. 4b does not interfere with the opening operation of the machine casing 8 (see also the locus 24 drawn by the tip when the first plate 16a is not separated). Increasing the length of the first plate 16a also increases the tight area with the receiving surface 4b, making it more difficult for unauthorized materials to enter.

  Further, in the closed state of the casing frame 4 and the machine frame 8, the unauthorized material inserted through the gap between the open / close end side front edge 4e and the open / close end side rear edge 8a faces the internal direction (predetermined direction) of the pachinko machine 2. Even if the vehicle travels straight, the first plate 16a is prevented from entering, and even if the illegal material that has been prevented from entering changes the direction of the second plate 16b (a direction different from the predetermined direction), the second plate 16b The intrusion is blocked. Furthermore, even if the illegal material inserted from the gap immediately advances in the direction of the second plate 16b, the tip portion 16d of the second plate 16b and the notch 8b are in close contact with each other, and the intrusion is prevented. The guide plate 16, the contact surface 4a, the receiving surface 4b, and the notch 8b can prevent intrusion of unauthorized materials from the open / close end side over substantially the entire vertical width of the machine casing 8.

  Even if there is a gap between the open / close end side front edge 4e and the open / close end side rear edge 8a, this fraud prevention structure makes it difficult to allow unauthorized materials to enter the pachinko machine 2. Dimensional management of the end side front edge 4e and the open / close end side rear edge 8a is facilitated. Therefore, it can also contribute to suppression of the manufacturing cost of the pachinko machine 2.

  In the first embodiment, the pair of frame bodies are described as being configured by the housing frame 4 and the machine frame 8, but the present invention is not limited to this, and any frame body that can be opened and closed in the pachinko machine 2 can be used. The machine frame 8 and the decorative frame 12 may constitute a pair of frame bodies. In addition, the pachinko machine 2 is given as an example of a gaming machine. However, a pachislot machine, a slot machine, various game machines, an arcade machine, and the like can be conceptualized. The present invention can be applied to any gaming machine having a body.

  In the first embodiment, the tightness means is constituted by a compression spring. However, the present invention is not limited to this, and a gear or the like is provided so that the guide plate swings in the separation / tightness direction in conjunction with opening and closing of the machine frame. It may be used mechanically to constitute the tight means, or the opening and closing of the machine frame may be detected, and the guide plate may be swung by a motor or the like to electrically constitute the tight means.

[Embodiment 2]
A fraud prevention structure according to Embodiment 2 of the present invention will be described with reference to the drawings. Similar to the first embodiment, the tamper-proof structure according to the second embodiment includes a housing frame 54, a contact surface 54a, a receiving surface 54b, a machine frame 58, a guide plate 66, and a compression spring 68. FIG. 4A shows a sectional view of the open / close end side as viewed from above. The housing frame 54, the contact surface 54a, and the receiving surface 54b have substantially the same functions and configurations as those of the first embodiment, and a pair of rockers that are swingably connected between the housing frame 54 and the machine frame 58. It constitutes a frame.

  As in the first embodiment, the machine frame 58 is formed with a notch 58b, and a guide plate 66 is swingably disposed on the open / close end side thereof.

  Similarly to the first embodiment, the guide plate 66 is also pivotally supported on the opening / closing end side of the machine frame 58 so as to be swingable, and includes a first plate (first fraud prevention plate) 66a and a second plate ( (Second fraud prevention plate) 66b. The first plate 66a and the second plate 66b are connected to each other so as to exhibit an L-shaped cross section.

  A folded portion 66e is formed at the end of the first plate 66a. In the closed state of the housing frame 54 and the machine frame 58, even if an unauthorized material forcibly enters the place where the first plate 66a and the receiving surface 54b are in close contact with each other, the folded portion 66e is prevented from entering. (See also FIG. 4 (c)).

  The second plate 66b has a base end portion 66c and a tip end portion 66d, and is connected and configured so that they have a non-right angle crank shape. A roller 66f is provided at the end of the tip 66d so as to be rotatable about an axis parallel to the swinging axis of the guide plate 66.

  Next, the operation of the guide plate 66 during the opening / closing operation of the machine frame 58 with respect to the housing frame 54 will be described with reference to the drawings.

  As shown in FIG. 4A, in the opened state of the casing frame 54 and the machine frame 58, the tip end portion 66d of the second plate 66b is urged in the direction indicated by the arrow Z, thereby The opening / closing end side rear end 58a protrudes to the rear side.

  As shown in FIG. 4B, the opening / closing end side rear edge 58 a of the machine frame 58 is brought into contact with the opening / closing end side front edge 54 c of the casing frame 54 in accordance with the closing operation of the machine frame 58 with respect to the casing frame 54. In addition, the roller 66f contacts the contact surface 54a. With the closing operation of the machine frame 58, the second plate is pushed into the contact surface 54a, and the entire guide plate 66 swings in the direction indicated by the arrow P against the urging force of the compression spring 68. As the guide plate 66 swings, the first plate 66a swings in a direction in which the first plate 66a comes into close contact with the receiving surface 54b. That is, the second plate 66b exerts a function as a tight unit that is pushed into the contact surface 54a to tightly contact the first plate 66a with the surface 54b. Note that when the second plate 66b is pushed into the contact surface 54a, the roller 66f slides on the contact surface. However, since the roller 66f is rotatable, the roller 66f can slide smoothly. Can do. In the second embodiment, the roller 66f is provided at the end of the tip portion 66d. However, the end of the tip portion 66d is formed to have a predetermined curvature, and the end of the tip portion 66d is placed on the contact surface 54a. You may make it slide smoothly.

  As shown in FIG. 4C, when the machine frame 58 is completely closed, the base end portion 66c of the second plate 66b is pushed into the contact surface 54a, and the first plate 66a is in close contact with the receiving surface 54b. It is like that. That is, the first plate 66a closely contacts the receiving surface 54b in conjunction with the second plate 66b being pushed into the contact surface 54a. In addition, even if an illegal material enters between the receiving surface 54b and the first plate 66a, the folding portion 66e prevents further invasion. Therefore, according to this anti-fraud structure, the illegal material can enter the pachinko machine. Intrusion has become more difficult.

  The second plate 66b is disposed at a position facing the contact surface 54a in the closed state of the housing frame 54, and its tip 66d is in close contact with the notch 58b.

  On the other hand, during the opening operation of the machine frame 58 with respect to the housing frame 54, the first plate 66a is swung away from the receiving surface 54b by the biasing force of the compression spring 68, contrary to the closing operation described above. Therefore, even if the folded portion 66e is formed on the first plate 66a, there is no hindrance to opening and closing the machine frame 58 without interfering with the receiving surface 54b and the like.

[Embodiment 3]
A fraud prevention structure according to Embodiment 3 of the present invention will be described with reference to the drawings. Similar to the first embodiment, the fraud prevention structure according to the third embodiment includes a casing frame 104 and a machine frame 108 as a pair of frames that are swingably connected so as to be openable and closable. FIG. 5A shows a sectional view of the open / close end side as viewed from above.

  The function and configuration of the housing frame 104 are substantially the same as those described in the first embodiment, but a guide groove is formed over substantially the entire vertical width thereof. The guide groove is formed by projecting a projecting piece projecting from the inside of the housing frame 104 on the open / close end side to be bent toward the front surface side, and is formed so that the groove width widens toward the front surface side. Of the left and right side surfaces of the guide groove, the side surface on the center side of the housing frame 104 functions as a contact surface 104a for swinging a guide plate 116 described later in the tight direction. On the other hand, of the left and right side surfaces of the guide groove, the side surface of the housing frame 104 has a function as a receiving surface 104b that is in close contact with the guide plate 116 that is swung in the tight direction.

  The machine frame 108 has a function of holding a game board (not shown) as in the first embodiment. A guide plate (first fraud prevention plate) 116 is slidably disposed inside the machine frame 108 on the open / close end side.

  The guide plate 116 is a thin plate-like member, and is formed to have a height that extends across the entire vertical width inside the machine casing 108. One end of the guide plate 116 is pivotally supported with respect to the machine frame 108 and is urged in the direction indicated by the arrow Q by a torsion spring (not shown).

  Next, the operation of the guide plate 116 during the opening / closing operation of the machine casing 108 with respect to the housing frame 104 will be described with reference to the drawings.

  As shown in FIG. 5A, in the open state of the casing frame 104 and the machine frame 108, the guide plate 116 is slightly inward from the extension line 108b on the inner surface of the machine frame 108 by the biasing force of the torsion spring. Is in the position where it swings.

  As shown in FIG. 5B, the opening / closing end side rear edge 108 a of the machine frame 108 is in contact with the opening / closing end side front edge 104 c of the casing frame 104 in accordance with the closing operation of the machine frame 108 with respect to the casing frame 104. Further, the tip of the guide plate 116 comes into contact with the contact surface 104a. As the machine casing 108 is closed, the guide plate 116 is guided by the contact surface 104a and swings in the direction indicated by the arrow R (tight direction) against the urging force of the torsion spring.

  As shown in FIG. 5C, when the machine casing 108 is completely closed, the guide plate 116 comes into close contact with the receiving surface 104b. Therefore, even if an unauthorized material is inserted through the gap between the open / close end side front edge 104c and the open / close end side rear edge 108a, the intrusion is prevented by the guide plate 116.

  On the other hand, when the machine frame 108 is opened with respect to the housing frame 104, the guide plate 116 swings away from the receiving surface 104b by the biasing force of the torsion spring, contrary to the above-described closing operation. Therefore, even if the length from the swinging shaft to the tip of the guide plate 116 is increased, the guide plate 116 does not interfere with the housing frame 104 during the opening / closing operation of the machine frame 108, and the opening / closing operation of the machine frame 108 is performed. Will not be disturbed. Increasing the length of the guide plate 116 from the swinging shaft to the tip makes it more difficult for unauthorized materials to enter.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these, A various deformation | transformation and change are possible within the range of the summary.

1 is an external perspective view of a pachinko machine according to Embodiment 1 of the present invention. It is an external appearance perspective view which shows the state which open | released the machine frame which the pachinko machine shown in FIG. 1 has. It is sectional drawing for demonstrating operation | movement of the guide plate accompanying the opening / closing operation | movement of the machine frame which the pachinko machine shown in FIG. 1 has, (a) The state before a 2nd plate contact | abuts to a contact surface, (b). It is a figure which shows the state which the 2nd plate contact | abutted on the contact surface, and the state which (c) 1st plate was tightly attached to the receiving surface. It is sectional drawing which looked at the fraud prevention structure which concerns on Embodiment 2 of this invention from upper direction, Comprising: (a) The state before a 2nd plate contact | abuts to a contact surface, (b) 2nd plate is a contact surface (C) It is a figure which shows the state which the 1st plate was closely_contact | adhered to the receiving surface. It is sectional drawing which looked at the fraud prevention structure which concerns on Embodiment 3 of this invention from upper direction, Comprising: (a) The state before a guide plate contact | abuts to a contact surface, (b) A guide plate contacts a contact surface. It is a figure which shows the state which contacted and (c) the guide plate closely_contact | adhered to the receiving surface.

Explanation of symbols

P, Q, R, X, Y, Z: Arrow 2: Pachinko machine (game machine)
4: Housing frame (frame)
4a: contact surface 4b: receiving surface 4c: side plate 4d: end 4e; open / close end side front edge 5: rail member 6: game board (game device body)
6a: Game board surface 6b: Game area 7: Symbol display device 7a: Display screen (video display surface)
8: Machine frame (frame)
8a: Open / close end side rear edge 8b: Notch 8c: Projection 10: Front glass (front transparent plate)
12: Decorative frame (front frame)
12a: Window portion 12b: Decoration member 14: Storage plate 14a: Upper plate 14b: Lower plate 14c: Ball discharge button 16: Guide plate 16a: First plate (first fraud prevention plate)
16b: 2nd plate (tight means) (interlocking part) (2nd fraud prevention plate)
16c: proximal end portion 16d: distal end portion 18: compression spring (spring member) (separating means)
19: Plate shaft 20: Ball 22: Connection shaft 24: Trajectory 26: Rail decoration 26a: Inner side 28: Normal winning port 29: Start winning port 30: Extra winning port 32: Out port 34: Launch handle 54: Housing frame (Frame)
54a: Contact surface 54b: Receiving surface 54c: Open / close end side front edge 58: Machine frame (frame body)
58a: Opening / closing end side rear edge 58b: Notch 66: Guide plate 66a: First plate (first fraud prevention plate)
66b: 2nd plate (tight means) (interlocking part) (2nd fraud prevention plate)
66c: base end portion 66d: tip end portion 66e: folded portion 66f: roller 68: compression spring (spring member) (separating means)
104: Housing frame (frame body)
104a: contact surface 104b: receiving surface 104c: open / close end side front edge 108: machine frame (frame body)
108a: Open / close end side rear edge 108b: Extension line 116: Guide plate (first fraud prevention plate)

Claims (2)

Of a pair of frame bodies that are swingably connected so as to be openable and closable and surrounding the gaming machine, the openable end side of one frame body can swing on an axis that is substantially parallel to the connecting shaft of the pair of frame bodies A first tamper-proof plate disposed on
In the closed state of the pair of frames, the first fraud prevention plate can be intimately connected to prevent the intrusion of unauthorized materials that are inserted from the gaps on the open / close end sides of the pair of frames and go in a predetermined direction, A receiving surface formed on the open / close end side of the frame body,
A contact surface formed on the other frame opposite to the one frame in the closed state of the pair of frames;
A fraud prevention structure having a tight means for swinging the first fraud prevention plate in the tight direction,
The first fraud prevention plate swings in a direction in close contact with the receiving surface with the closing operation of the pair of frames, and is separated from the receiving surface with the opening operation of the pair of frames. Swing in the direction,
The tight means is an interlocking portion formed to be interlockable with the first fraud prevention plate,
The interlocking portion is pushed into the contact surface in accordance with the closing operation of the pair of frame bodies, so that the first fraud prevention plate swings in the tight direction and tightly contacts the receiving surface,
A fraud prevention structure in which, in the closed state, the interlocking portion also exhibits a function as a second fraud prevention plate that prevents the intrusion of the fraudulent material in a direction different from the predetermined direction . The fraud prevention structure according to claim 1, further comprising separation means for swinging the first fraud prevention plate in the separation direction.

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