JP2008272000A - Fraudulent release prevention device for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fraudulent release prevention device for a game machine which can show a visual security effect in terms of the fraudulent release of the front door of the game machine such as pachinko. <P>SOLUTION: A fraudulent release prevention device for the game machine 1A is arranged outside of the game machine 20, and provided with a stopper 3 and a fixing means 7. The stopper 3 interferes the front door 21 at the time of release of the front door 21, and prevents the door 21 from being released. The blocking position near the front side the front door 21 and the permitting position where the front door 21 is not interfered to open can be displaced with each other. The fixing means 7 switches the fixture state where the stopper 3 is fixed at the blocking position and the release state where the stopper is released from the fixture state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an unauthorized opening prevention device for a gaming machine that prevents unauthorized opening of a front door of a gaming machine such as a pachinko machine or a slot machine.

  A gaming machine installed in a game hall such as a pachinko parlor is generally provided with a main locking means for locking the front door of the gaming machine in a closed state. When the front door is unlocked by the main locking means, the lock is released by performing the unlocking operation on the unlocking operation unit of the main locking means using a specific key. Has been.

  Furthermore, in order to prevent such a gaming machine from opening its front door for illegal purposes, for example, the following unauthorized opening prevention device is known.

In other words, one end of the rope (eg, wire) wound around the reel is attached to the back surface of the front door of the gaming machine, and the front door cannot be opened by locking the rotation of the reel with the locking means. The apparatus which performed is known (for example, refer patent document 1-4).
JP 10-94652 A (Claim 1) JP 2003-299861 A (Claim 1) JP 2004-173761 A (Claim 1) JP 2006-110173 A (Claim 1)

  Thus, in the conventional unauthorized opening prevention device, one end of the rope is attached to the back surface of the front door of the gaming machine, and the reel is usually installed inside or behind the gaming machine casing. From the front side of the gaming machine, it has not been possible to visually recognize whether or not the unauthorized opening prevention device is attached to the gaming machine. Therefore, the crime prevention effect was poor for those who tried to open the front door illegally.

  The present invention has been made in view of the above-described technical background, and an object thereof is to provide an apparatus for preventing unauthorized opening of a gaming machine that can exhibit a visual crime prevention effect with respect to unauthorized opening of a front door.

  The present invention provides the following means.

[1] A device for preventing unauthorized opening of a gaming machine that is disposed outside a gaming machine and prevents unauthorized opening of a front door of the gaming machine,
A stopper piece that can be displaced to a blocking position in the vicinity of the front side of the front door that interferes with the front door when the front door is opened, and an allowable position that does not interfere with the opened front door,
A fixing means capable of switching between a fixed state in which the stopper piece is fixed at the blocking position and a released state in which the stopper is released;
An apparatus for preventing unauthorized opening of a gaming machine, comprising:

[2] On the front surface of the front door of the gaming machine, there is provided a lock release operation unit for switching from the locked state in which the front door is locked to the closed state to the released state in which the lock is released,
2. The unauthorized opening prevention device for a gaming machine according to claim 1, wherein the blocking position of the stopper piece is set to a position where the unlocking operation portion of the closed front door is hidden.

[3] biasing means for biasing the stopper piece from the blocking position toward the allowable position;
When the stopper piece fixed in the blocking position by the fixing means is forcibly displaced from the blocking position to the allowable position by an external force, the stopper piece is prevented from being re-fixed to the blocking position by the fixing means. Fixing prevention means,
3. The unauthorized opening prevention device for a gaming machine according to 1 or 2 above, comprising:

  [4] The re-fixing preventing means prevents the stopper piece from being re-fixed to the blocking position by the fixing means when the stopper piece is forcibly displaced from the blocking position to the allowable position by an external force. 4. The unauthorized opening prevention device for a gaming machine according to the above item 3, which has a low strength portion which is disabled.

[5] The stopper piece is displaceable across the plurality of blocking positions and the allowable position, with a plurality of different positions in the front-rear direction as blocking positions.
The unauthorized opening prevention device for a gaming machine according to any one of the preceding items 1 to 4, wherein the fixing means is capable of fixing the stopper piece to the plurality of blocking positions.

  [6] The unauthorized opening prevention device for a gaming machine according to any one of the above items 1 to 5, wherein the fixing means is configured to be able to control the fixing release of the stopper piece by an electric signal.

  [7] Prevention of unauthorized opening of the gaming machine according to any one of the preceding items 1 to 6, further comprising a cover body attached to the stopper piece to prevent damage to the front door due to contact between the stopper piece and the front door apparatus.

  [8] The cover body has at least a design on the front surface thereof that matches the design on the front surface of the front door, is decorated on at least the front surface, or has a holding portion that holds other members. 8. The unauthorized opening prevention device for a gaming machine according to claim 7, wherein the device is detachably attached to the stopper piece.

  [9] A gaming machine to which the unauthorized opening prevention device according to any one of items 1 to 8 is attached.

  The present invention has the following effects.

  In the invention of [1], by disposing the stopper piece of the unauthorized opening prevention device at the blocking position in the vicinity of the front side of the front door, the person trying to open the front door illegally (hereinafter referred to as “illegal person”). Thus, it is possible to visually recognize that the front door cannot be opened, and thereby, it is possible to exert a visual crime prevention effect that attempts to give up the unauthorized opening to the unauthorized person.

  Further, since the stopper piece can be displaced between the blocking position and the allowable position, the front door can be opened by displacing the stopper piece from the blocking position to the allowable position.

  Further, the unauthorized opening prevention device includes a fixing means that can be switched between a fixed state in which the stopper piece is fixed at the blocking position and a released state in which the fixing is released, so that the stopper piece is fixed at the blocking position by the fixing means. Can be canceled.

  Of course, this unauthorized opening prevention device is arranged outside the gaming machine. Therefore, in order to prevent unauthorized opening of the front door of the gaming machine, it is not necessary to directly attach the unauthorized opening preventing device to the gaming machine. For example, in the vicinity of the side where the gaming machine is planned to be installed on the island where the gaming machine is installed. What is necessary is just to install this apparatus in a part (what is called a gusset part). In this way, even when a gaming machine is replaced with a new one, this apparatus can be applied to a new gaming machine without replacing the unauthorized opening prevention device.

  In the invention of [2], the blocking position of the stopper piece is set to a position where the unlocking operation part of the closed front door is hidden. Therefore, in the state where the stopper piece is placed at the opening prevention position of the front door and the opening of the front door is blocked, the unlocking operation part is hidden from the front side by the stopper piece and the unlocking operation part is unlocked. Cannot be performed. Therefore, in order for an unauthorized person who has illegally obtained an unlocking key or a duplicate thereof to perform the unlocking operation on the unlocking operation unit, first the stopper piece is displaced from the blocking position to the permissible position. It is necessary to place the piece at a position where the unlocking operation unit can be unlocked, and then perform the unlocking operation on the unlocking operation unit. That is, an unauthorized person needs to sequentially perform an operation of displacing the stopper piece from the blocking position to the allowable position and an unlocking operation on the unlocking operation unit, that is, these operations cannot be performed simultaneously. As a result, it takes a long time to open the front door, so that it is possible to exert a crime prevention effect that attempts to give up illegal opening strongly against unauthorized persons.

  In the invention of [3], if the stopper piece is forcibly displaced from the blocking position to the allowable position by an external force by an unauthorized person, the stopper piece cannot be re-fixed to the blocking position. The piece is arranged at the allowable position instead of the blocking position by the urging force of the urging means. As a result, game shop managers, shop assistants, etc. can easily determine whether or not the front door has been opened illegally, and quickly recognize that there has been an unauthorized opening of the front door. Can do.

  In the invention of [4], if the stopper piece is forcibly displaced from the blocking position to the allowable position by an external force by an unauthorized person, the low-strength portion is damaged, and the stopper piece is moved to the blocking position. It can prevent more reliably that it is re-fixed.

  In the invention of [5], the position of the stopper piece in the front-rear direction can be adjusted according to the thickness of the front door, the uneven shape of the front surface of the front door, and the like, whereby the stopper piece can be adjusted to the thickness of the front door or the front door. It can be arranged at the blocking position corresponding to the concave and convex shape of the front surface. Therefore, this unauthorized opening prevention device can be applied to various models with different thicknesses of the front door of the gaming machine and the uneven shape of the front surface of the front door. Opening can be prevented.

  In the invention of [6], since the fixing means is configured to be able to control the unlocking of the stopper piece by an electric signal, the fixing of the stopper piece can be released by remote operation, for example.

  In the invention of [7], the unauthorized opening prevention device includes a cover body that is attached to the stopper piece and prevents damage to the front door due to contact between the stopper piece and the front door. The cover body can prevent damage to the front door due to contact with the door.

  In the invention of [8], the cover body has the following effects when at least the design on the front surface is compatible with the design on the front surface of the front door. That is, when such a cover body is attached to the stopper piece, the front face of the stopper piece is exposed to the front face side of the front door, so that it is possible to prevent a problem that the design of the front face of the front door is impaired. The design of the front surface of the front door can be maintained well. Further, the cover body is detachably attached to the stopper piece. Therefore, if the design of the cover body does not conform to the design on the front surface of the front door, the cover body can be replaced with a design that conforms to the design on the front surface of the front door, thereby improving the design on the front surface of the front door. Can be maintained.

  In the invention [8], the cover body has the following effects when at least the front surface thereof is decorated. That is, when such a cover body is attached to the stopper piece, the design of the front surface of the front door can be improved. Further, the cover body is detachably attached to the stopper piece. Therefore, when the decoration of the cover body does not contribute to the improvement of the design of the front surface of the front door, the cover body can be replaced with one that contributes to the improvement of the design of the front surface of the front door. The design can be improved with certainty.

  Moreover, in the invention of [8], when the cover body is provided with a holding portion for holding other members, the following effects are obtained. That is, when such a cover body is attached to the stopper piece, the other member can be held by the holding portion without having to separately attach a holding portion for holding the other member to the gaming machine. Further, the cover body is detachably attached to the stopper piece. Therefore, when the holding portion is unnecessary, the cover body can be removed from the stopper piece.

  In the invention of [9], a gaming machine having the same effects as any of the inventions of [1] to [8] can be provided.

  Next, several embodiments of the present invention will be described below with reference to the drawings.

  1-7 is a figure for demonstrating the unauthorized opening prevention apparatus of the game machine which concerns on 1st Embodiment of this invention.

  In FIG. 2, (20) is a pachinko gaming machine as a gaming machine, and (1A) is an unauthorized opening prevention device of the first embodiment.

  The gaming machine (20) includes a front door (21) disposed on the front surface thereof. The front door (21) is provided at the front of the gaming machine (20) so that the left edge of the front door (21) is pivotally attached to the box-shaped housing of the gaming machine (20) and can be opened and closed forward around the left edge. It has been.

  A plurality of the gaming machines (20) are installed in the gaming machine installation scheduled part (25) of the island (23) installed in the gaming store through the gusset part (23a) side by side. That is, the gusset part (23a) is arrange | positioned between the mutually adjacent game machines (20) (20) in an island (23).

  Further, a call lamp unit (24) having a call switch for a player to call a store clerk is installed in the vicinity of the upper part of each gaming machine (20) on the island (23). This calling lamp unit (24) is also called a “number lamp unit”, and displays data such as a gaming machine number, a lamp that lights when winning a prize such as a jackpot, and the number of winnings, in addition to a calling switch and a calling lamp. A data display unit, a control unit (11) described later, and the like are provided.

  In addition, on the back (rear) side of the front door (21) inside the gaming machine (20), the front door (21) is connected to the gaming machine (20) (specifically, the casing of the gaming machine (20)). The lock means (22) is provided that can be switched between a locked state for locking in the closed state and a released state for releasing the lock. The unlocking operation part (22a) of the main locking means (22) is provided at the right edge of the front surface of the front door (21). This unlocking operation part (22a) has a keyhole, and by inserting a specific key into this keyhole and rotating it, the lock of the front door (21) by this locking means (22) is released, and the front door (21) is brought into a state that can be opened, that is, the locked state in which the front door (21) is locked is switched to the released state in which the lock is released.

  In FIG. 2, (21a) and (21b) are a ball receiving portion and a ball launching handle provided on the front surface of the front door (21), respectively.

  The unauthorized opening prevention device (1A) of the first embodiment is for preventing unauthorized opening of the front door (21) of the gaming machine (20). This unauthorized opening prevention device (1A) is arranged in the vicinity of the outside of the gaming machine (20) as shown in FIGS. 2 and 3, and more specifically, the side of the gaming machine (20) (more specifically, It is installed in a gusset portion (23a) arranged adjacent to the right side), whereby an unauthorized opening prevention device (1A) is attached to the gaming machine (20). The gusset portion (23a) is provided with a ball lending device (not shown) in addition to the unauthorized opening prevention device (1A).

  The configuration of the unauthorized opening prevention device (1A) will be described below.

  As shown in FIGS. 1 to 4, the unauthorized opening prevention device (1 </ b> A) includes a case (2), a support piece (4), a holding sleeve (5), a stopper piece (3), and an urging means as its casing. (10) A fixing means (7) is provided.

  The case (2) is made of metal, and as shown in FIGS. 2 and 3, the gusset portion (23a) on the lateral side (right lateral side) of the gaming machine (20) is placed in front of the case (2). The face plate (2b) is installed in a fixed state so that the front surface of the face plate (2b) is substantially flush with the front surface of the gusset portion (23a). Further, as shown in FIGS. 3 and 4, the case (2) is formed such that the upper portion thereof protrudes rearward locally. In this case (2), the front plate (2b) is fixed to the main body (2a) of the case (2) with screws (not shown). Each of the left and right face plates (2c) and (2c) has a lower end portion fixed to the main body (2a) of the case (2) with a screw (not shown) and an upper end portion of the upper and lower face plate of the case (2). Is inserted and locked in a locking hole (2i) provided in the. Moreover, the part (2d) formed in the state protruded locally back in case (2) is being fixed to the main body (2a) of case (2) by welding or a screw (not shown).

  The support piece (4) supports the stopper piece (3), and is a metal-like straight rod having a circular cross section.

  The holding sleeve (5) holds the support piece (4) so as to be slidable in the axial direction (that is, in the length direction) and rotatable about the axial center, and is made of a metal having rigidity. It is a straight cylinder. Both front and rear ends of the holding sleeve (5) are opened. The holding sleeve (5) is arranged in the case (2) in parallel with the longitudinal direction of the gaming machine (20), and the front end portion thereof is provided on the front plate (2b) of the case (2). It is inserted into the insertion hole (2g) and fixed to the front plate (2b), and its rear end is inserted and held in the insertion hole (2h) provided in the partition plate (2f) of the case (2). ing. As a result, the holding sleeve (5) is fixed in the case (2) parallel to the front-rear direction of the gaming machine (20) with its front end opening exposed on the front surface of the front plate (2b) of the case (2). Arranged in a state.

  In FIG. 1, (2j) is a fixing plate for fixing the front end portion of the holding sleeve (5) to the front plate (2b) of the case (2). The fixing plate (2j) is a screw (not shown) in a state where the flange portion (5b) at the front end of the holding sleeve (5) is sandwiched between the fixing plate (2j) and the front plate (2b). Thus, the front end of the holding sleeve (5) is fixed to the front plate (2b).

  A guide hole (6) comprising a long hole extending from the rear end portion toward the front end portion is provided in the peripheral wall portion of the holding sleeve (5). Further, the rear portion of the guide hole (6) is a straight portion (6a) extending straight in parallel with the front-rear direction of the holding sleeve (5) (that is, the front-rear direction of the gaming machine (20)). On the other hand, the front portion (more specifically, the front end portion) of the guide hole (6) has a substantially square shape with respect to the straight portion (6a) of the guide hole (6) on one side in the circumferential direction of the holding sleeve (5). It is made into the bending part (6b) bent and extended to. Specifically, the straight portion (6a) of the guide hole (6) is provided on the right side of the peripheral wall portion of the holding sleeve (5) so as to extend straight in parallel with the front-rear direction of the holding sleeve (5). On the other hand, the bent portion (6b) of the guide hole (6) extends from the right side portion of the peripheral wall portion of the holding sleeve (5) toward the upper portion by bending in a substantially square shape with respect to the straight portion (6a). Is provided.

  In the holding sleeve (5), the support piece (4) is inserted and held so as to be rotatable about its axis and slidable in the front-rear direction with respect to the holding sleeve (5). Thereby, the position of the support piece (4) can be adjusted in the front-rear direction with respect to the front door (21).

  A guided convex portion (4a) guided along the guide hole (6) is provided in a fixed state at the rear portion of the peripheral surface of the support piece (4). The guided convex portion (4a) is composed of a screw head embedded in a fixed state at the rear portion of the peripheral surface of the support piece (4), and extends along the guide hole (6) in the guide hole (6). It is arranged to be slidable.

  And as shown in FIG.3 and FIG.4, when the to-be-guided convex part (4a) is arrange | positioned at the rear-end part of the straight part (6a) of a guide hole (6), a support piece (4) is the front end. Only the portion protrudes forward from the front end opening of the holding sleeve (5) (that is, the front surface position of the front plate (2b) of the case (2)), and the other portions are inside the case (2) (more specifically, the holding sleeve) (5)). From this state, when the support piece (4) slides forward in the holding sleeve (5), the guided protrusion (4a) is moved from the rear end of the straight portion (6a) of the guide hole (6). Move forward. At this time, while the guided convex part (4a) is moving along the straight part (6a) of the guide hole (6), the support piece (4) slides forward without rotating. Then, as the guided convex part (4a) moves from the straight part (6a) to the bent part (6b) of the guide hole (6), the support piece (4) slides forward and counterclockwise. To be rotated. And as shown in FIG.6 and FIG.7, when a to-be-guided convex part (4a) collides with the front-end edge (6c) of the bending part (6b) of a guide hole (6), the front of a support piece (4) Is stopped while the rotation of the support piece (4) is rotated 90 ° counterclockwise from the initial position.

  Moreover, as shown in FIG.3 and FIG.4, the straight spindle (10b) which supports the coil spring (10a) as an urging means (10) mentioned later in the center part of the rear-end surface of a support piece (4). ) Is fixed to the rear protruding shape by screws. Further, the support shaft (10b) is inserted into the insertion hole (2n) provided in the rear plate (2e) of the case (2), and the rear portion of the support shaft (10b) extends from the insertion hole (2n) to the case (2). It is inserted so that sliding movement is possible in the state which protruded to the back.

  The stopper piece (3) is a metal flat plate having rigidity, and is fixed to the front end of the support piece (4) in an L shape with respect to the support piece (4) as shown in FIG. It is provided in the state.

  This stopper piece (3) is a blocking position for blocking the opening of the front door (21) in the vicinity of the front side of the front door (21) in the closed state of the gaming machine (20). The stopper piece (3) is arranged to interfere with the front door (21) when the front door (21) is opened, thereby preventing the front door (21) from being opened. In this embodiment, as shown in FIGS. 2 and 3, the blocking position of the stopper piece (3) is in the vicinity of the front side of the lock / unlock operation part (22a) of the closed front door (21). It is set to a position to hide the unlocking operation section (22a). Furthermore, the stopper piece (3) is arranged in a state extending horizontally from the front end of the support piece (4) to the left at the blocking position.

  Further, as shown in FIGS. 5 and 6, the stopper piece (3) does not interfere with the opening prevention position of the front door (21) and the front door (21) to be opened. It can be displaced to a permissible position that permits the opening of. More specifically, this stopper piece (3) is not the vicinity of the front side of the front door (21), but the front side of the gusset part (23a) as the opening allowable position of the front door (21), and the gusset part (23a). Thus, it is arranged in a state extending downward from the front end of the support piece (4) at a position largely separated forward.

  The urging means (10) constantly urges the stopper piece (3) from the blocking position toward the allowable position via the support piece (4). In this embodiment, the urging means (10) is used as the urging means (10). A coil spring (10a) is used. This coil spring (10a) is placed between the rear plate (2e) of the case (2) and the support piece (4) in a state where the coil spring (10a) is compressed in the axial direction of the coil spring (10a). Rotated and supported. And this coil spring (10a) always urges | biases the support piece (4) ahead with the urging | biasing force which consists of the elastic restoring force, and a support piece (4) moves ahead with this urging | biasing force. Accordingly, the stopper piece (3) is displaced from the blocking position to the allowable position.

  The fixing means (7) can be switched between a fixed state in which the stopper piece (3) is fixed to the opening prevention position of the front door (21) and a released state in which the fixing is released, and the stopper piece (3) Is configured to be controllable by an electric signal.

  The fixing means (7) includes a fixing pin (8) having a circular cross section, a solenoid (7a) for driving the fixing pin (8), and a control unit (for controlling fixing and releasing operations by the fixing means (7)). 11). As described above, the control unit (11) is installed in the calling lamp unit (24) (see FIG. 2).

  As shown in FIGS. 1 and 4, the solenoid (7 a) is placed in the case (2) at a position closer to the front side of the holding sleeve (5), with the telescopic hook (7 b) facing upward. 2) is held in a fixed state by the solenoid holding plate (2 m). At the tip (upper end) of the telescopic rod (7b) of the solenoid (7a), a fixing pin (8) is provided in an upward projecting manner via a holding member (7c) that holds the fixing pin (8) in an exchangeable manner. It has been. Further, the fixing pin (8) is always urged by a fixing pin urging coil spring (7d) so as to protrude upward. In FIG. 4, (7e) denotes a power supply line and a control signal line of the solenoid (7a).

  And this fixing means (7) starts supply (namely, energization) of electricity as an electric signal to solenoid (7a), and drives this solenoid (7a), thereby extending and retracting rod (7b) of solenoid (7a) Is shortened against the urging force of the fixed pin urging coil spring (7d), and as a result, the fixed pin (8) moves downward, while the energization of the solenoid (7a) is stopped. The telescopic rod (7b) is extended to its original length by the biasing force of the fixed pin biasing coil spring (7d), and the fixed pin (8) is moved upward accordingly. The control of the operation of the solenoid (7a), that is, the control for starting and stopping energization of the solenoid (7a) is performed by the control unit (11) based on a command signal output from a remote controller to be described later.

  An insertion hole (5b) into which the fixing pin (8) is inserted is formed in the lower side portion of the front portion of the peripheral wall portion of the holding sleeve (5). The cross-sectional shape of the insertion hole (5b) is formed in a shape corresponding to the cross-sectional shape of the fixing pin (8), that is, a circular shape.

  On the other hand, the length direction of the support piece (4) (ie, the front-rear direction) is provided on the lower surface portion of the peripheral surface of the support piece (4) in a state where the stopper piece (3) is disposed at the opening prevention position of the front door (21). ), A plurality of engaging grooves (9) corresponding to the fixing pins (8) extending in a direction orthogonal to the horizontal direction (that is, the left-right direction) are spaced apart from each other in the length direction of the support piece (4). Is provided.

  As shown in FIG. 4, the tip of the fixed pin (8) is a fixed pin urging coil in a state where the stopper piece (3) is disposed at the opening prevention position of the front door (21). Due to the urging force of the spring (7d), it passes through the insertion hole (5b) of the holding sleeve (5) and within one of the engagement grooves (9) among the many engagement grooves (9) of the support piece (4). The support piece (4) is fixed so as not to move forward, so that the stopper piece (3) is fixed so as not to move forward. Furthermore, in this state, the guided convex part (4a) of the support piece (4) is arranged in the straight part (6a) of the guide hole (6) of the holding sleeve (5), and therefore the support piece (4) Is arranged in the holding sleeve (5) in a non-rotatable manner, whereby the stopper piece (3) is fixed in a non-rotatable manner. Therefore, the stopper piece (3) is arranged at the blocking position of the front door (21) in a state where it cannot move forward and cannot be rotated further.

  Further, as described above, a large number of engagement grooves (9) are provided at predetermined intervals in the length direction of the support piece (4) on the lower surface portion of the peripheral surface of the support piece (4). The stopper piece (3) is configured to be displaceable across a number of blocking positions and allowable positions with a number of different positions in the front-rear direction as blocking positions, and the fixing means (7) is provided with the stopper piece (3). It is configured to be fixable to a number of blocking positions.

  Further, in the present embodiment, the front surface portion (8a) of the front end portion of the fixing pin (8) is formed as an inclined surface that is inclined so as to gradually approach the rear surface portion (8b) as it proceeds to the front end. The rear surface portion (8b) of the tip portion of 8) is formed in parallel with the axial direction of the fixing pin (8). On the other hand, the front surface portion (9a) inside each engagement groove (9) of the support piece (4) is formed on an inclined surface corresponding to the front surface portion (8a) of the tip portion of the fixing pin (8), and The rear surface portion (9b) inside each engagement groove (9) is formed perpendicular to the length direction of the support piece (4). Therefore, when the support piece (4) is about to move forward in a state where the tip of the fixing pin (8) is inserted into the engagement groove (9), the tip of the fixing pin (8) Engaging with the engaging groove (9) (specifically, the rear surface portion (9b) inside the engaging groove (9)), this prevents the support piece (4) from moving forward, while the support piece When (4) tries to move backward, the tip of the fixing pin (8) does not engage with the engaging groove (9), and the tip of the fixing pin (8) does not engage with the engaging groove (9). The front surface portion (8a) at the tip end portion of the fixed pin (8) is pushed downward against the urging force of the fixed pin urging coil spring (7d) at the inner front surface portion (9a) of the pin. The front part (9a) on the inner side of (9) is slid and guided rearward to allow the support piece (4) to move rearward.

  In the fixing means (7), the fixing pin (8) is made of a resin that is weak in strength. Then, the stopper piece (3) fixed in the blocking position by inserting the distal end portion of the fixing pin (8) into the engagement groove (9) of the support piece (4) is moved from the blocking position to the allowable position. When the front end of the fixing pin (8) is forcibly displaced forward by an external force, the front end of the fixing pin (8) is strongly pressed forward by the rear surface (9b) inside the engaging groove (9). As a result, the fixing pin (8) cannot be engaged with the engaging groove (9) and the stopper piece (3) cannot be re-fixed to the blocking position. As a result, the support piece (4) It moves forward by the urging force of the coil spring (10a), and accordingly, the stopper piece (3) is arranged at the allowable position. Thus, in the first embodiment, the fixing pin (8) is a low strength portion (12) that is weak in strength in the unauthorized opening prevention device (1A), and the stopper piece (3) of the fixing means (7) is fixed. It functions as a re-fixing prevention means for preventing re-fixing to the blocking position.

  The control unit (11) is installed in the calling lamp unit (24) as described above, and further remotely transmits a command signal including a radio signal (for example, an infrared signal or a radio signal) to the control unit (11). A remote control (not shown) is provided. A receiving unit (11a) for receiving a command signal output from the remote controller is disposed on the front surface of the calling lamp unit (24).

  Next, the operation of the unauthorized opening prevention device (1A) of the first embodiment will be described below.

  2 to 4, in the gaming machine (20), the front door (21) is locked in a closed state by the lock means (22). In this state, only the front end of the support piece (4) of the unauthorized opening prevention device (1A) is the front end opening of the holding sleeve (5) (that is, the front surface position and gusset of the front plate (2b) of the case (2)). The front portion of the portion (23a) slightly protrudes forward, and the other portions are disposed in the case (2) (specifically, in the holding sleeve (5)). The guided convex portion (4a) of the support piece (4) is disposed at the rear end portion of the straight portion (6a) of the guide hole (6) of the holding sleeve (5). Further, the coil spring (10a) is compressed in the axial direction between the support piece (4) and the rear plate (2e) of the case (2), and thereby the coil spring (10a) is made of an elastic restoring force. The urging power is accumulated.

  Further, the stopper piece (3) serves as an opening prevention position of the front door (21), in the vicinity of the front side of the unlocking operation portion (22a) of the lock means (22), and to the left from the front end of the support piece (4). It is arranged in a horizontally extending state. As a result, the opening of the front door (21) is blocked by the stopper piece (3), and further, the unlocking operation part (22a) can be operated by the stopper piece (3) with respect to the unlocking operation part (22a). Also, it is hidden from the front side so that it cannot be unlocked.

  Furthermore, the front end of the fixing pin (8) in the fixing means (7) passes through the insertion hole (5b) of the holding sleeve (5) and is one of the many engaging grooves (9) of the support piece (4). It is inserted in the engagement groove (9), and thereby, the support piece (4) is fixed so as not to move forward. Further, as described above, the guided convex portion (4a) is disposed at the rear end portion of the straight portion (6a) of the guide hole (6), whereby the support piece (4) is placed in the holding sleeve (5). It is fixed so that it cannot rotate. Accordingly, the stopper piece (3) provided in a fixed state at the front end of the support piece (4) is fixed to the front door (21) so as not to move forward at the opening preventing position of the front door (21), and further the support piece (4). It is fixed so that it cannot rotate around the center.

  From this state, in order to open the front door (21) of the gaming machine (20), the stopper piece (3) of the unauthorized opening prevention device (1A) is moved from the opening prevention position of the front door (21) to the front door (21). A method of displacing to the open allowable position will be described below.

  First, a store clerk or the like transmits a command signal for displacing the stopper piece (3) to the open allowable position of the front door (21) from the remote control to the control unit (11) using the remote control.

  The signal transmitted from the remote controller is received by the receiver (11a) and transmitted to the controller (11). Then, energization of the solenoid (7a) is started by the control unit (11), and the solenoid (7a) is driven. As a result, the telescopic rod (7b) of the solenoid (7a) is shortened against the urging force of the fixing pin urging coil spring (7d), and the fixing pin (8) moves downward along with this, The tip is extracted from the engagement groove (9). Thereby, fixation of a stopper piece (3) is cancelled | released.

  Then, the support piece (4) slides forward in the holding sleeve (5) by the biasing force of the coil spring (10a) and protrudes forward of the front plate (2b) of the case (2). The convex part (4a) moves forward from the rear end part of the straight part (6a) of the guide hole (6). Then, as the guided convex portion (4a) moves from the straight portion (6a) to the bent portion (6b) of the guide hole (6), the support piece (4) slides forward and the stopper piece ( It is rotated counterclockwise together with 3). And as shown in FIG.6 and FIG.7, when a to-be-guided convex part (4a) collides with the front-end edge (6c) of the bending part (6b) of a guide hole (6), the front of a support piece (4) And the rotation of the support piece (4) is stopped 90 ° counterclockwise from the initial position. As a result, the stopper piece (3) is moved to the front door (21). As an open-permitted position, it is disposed in a state extending downward from the front end of the support piece (4) at a position on the front side of the gusset part (23a) and largely separated from the gusset part (23a). The unlocking operation part (22a) of the lock means (22) is exposed.

  After the stopper piece (3) is arranged at the opening allowable position of the front door (21) in this way, a clerk or the like uses the remote control to send a command signal from the remote control to move the fixing pin (8) to the original height position. It transmits to a control part (11).

  In the present invention, the method of transmitting the command signal for moving the fixing pin (8) to the original height position to the control unit (11) is not limited to using the remote controller, For example, it may be detected by a sensor that the stopper piece (3) is arranged at the open allowable position of the front door (21), and such a signal may be transmitted from the sensor to the control unit (11). This method may be used.

  The signal transmitted from the remote controller is received by the receiver (11a) and transmitted to the controller (11). Then, the energization to the solenoid (7a) is stopped by the control unit (11). As a result, the telescopic rod (7b) of the solenoid (7a) is extended to the original length by the urging force of the fixing pin urging coil spring (7d), and the fixing pin (8) is moved upward accordingly. The front-end | tip part is pressed by the surrounding surface of the rear-end part of a support piece (4). At this time, as shown in FIG. 7, the engagement groove (9) is not provided in the peripheral surface of the rear end portion of the support piece (4) pressed at the front end portion of the fixing pin (8). The tip of the fixing pin (8) is not engaged with the engaging groove (9).

  After this state, the lock release operation part (22a) of the lock means (22) is unlocked, that is, a specific key is inserted into the key hole of the lock release operation part (22a) and rotated. Thus, the lock of the front door (21) by the lock means (22) is released, and the front door (21) is opened.

  Next, in order to prevent unauthorized opening of the front door (21) of the gaming machine (20) from the state where the front door (21) is opened, the stopper piece (3) of the unauthorized opening prevention device (1A) is moved to the front door ( 21) The method of arranging at the opening prevention position will be described below.

  First, the front door (21) of the gaming machine (20) is locked in a closed state by the lock means (22). Next, a store clerk or the like manually pushes the front end of the support piece (4) rearward and moves the support piece (4) rearward against the urging force of the coil spring (10a) by hand force. Then, the guided convex part (4a) moves from the bent part (6b) of the guide hole (6) to the straight part (6a), and the stopper piece while the support piece (4) slides and moves back accordingly. Rotate clockwise with (3). Further, during the movement of the support piece (4) rearward in this way, the distal end portion of the fixing pin (8) pressed against the peripheral surface of the support piece (4) is the fixed pin biasing coil spring (7d). In this case, the distal end portion of the fixing pin (8) does not engage with the engagement groove (9), and the support piece (4) is inserted into the engagement groove (9). ) Is allowed to move backward. Further, as the support piece (4) moves rearward, the coil spring (10a) is compressed in the axial direction, and an urging force is accumulated in the coil spring (10a).

  Then, as shown in FIGS. 2 to 4, the stopper piece (3) serves as an opening prevention position of the front door (21), and the unlocking operation portion (22a) of the main locking means (22) in the front door (21). When the unlocking operation portion (22a) is hidden by the stopper piece (3) from the vicinity of the front side, the front end of the support piece (4) is pushed backward by hand. To stop the backward movement of the support piece (4). Then, the support piece (4) tries to move forward by the urging force of the coil spring (10a), but the tip of the fixing pin (8) is engaged with the engagement groove (9), so that the support piece ( The forward movement of 4) is prevented. As a result, the stopper piece (3) is fixed to the opening prevention position of the front door (21).

  Further, when the support piece (4) is moved rearward in this way, a large number of engagement grooves (9) are formed at predetermined intervals in the length direction of the support piece (4) on the peripheral surface of the support piece (4). When the position of the stopper piece (3) in the front-rear direction with respect to the front door (21) is adjusted according to the thickness of the front door (21) and the uneven shape of the front surface of the front door (21) Even so, the distal end portion of the fixing pin (8) is inserted into the engagement groove (9) of any one of the many engagement grooves (9) and engaged therewith, so that the stopper (3) can be fixed at each position in the front-rear direction.

  Further, in the unauthorized opening prevention device (1A) of the first embodiment, under the state shown in FIG. 2 to FIG. 4, if an unauthorized person makes an unlock operation part (22a) of the lock means (22), In order to perform the unlocking operation of the front door (21) with respect to the unlocking operation part (22a), the stopper piece (3) is forcibly moved forward using a predetermined tool such as a bar. In this case, the tip of the fixing pin (8) as the low-strength portion (12) is damaged by being strongly pressed forward by the rear surface portion (9b) inside the engagement groove (9). Thus, the fixing pin (8) cannot be engaged with the engaging groove (9), and the stopper piece (3) cannot be re-fixed to the blocking position. As a result, the support piece (4) is moved forward by the urging force of the coil spring (10a), and accordingly, the stopper piece (3) is always arranged at the open allowable position of the front door (21).

  Thus, the unauthorized opening prevention device (1A) of the first embodiment has the following advantages.

  By disposing the stopper piece (3) of the unauthorized opening prevention device (1A) at the blocking position near the front side of the closed front door (21) as shown in FIGS. It is possible to visually recognize that the front door (21) cannot be opened, and thereby, it is possible to exert a visual crime prevention effect that tries to give up unauthorized opening to an unauthorized person.

  Further, since the stopper piece (3) can be displaced between the opening prevention position of the front door (21) and the allowable position allowing the opening of the front door (21), the stopper piece (3) is moved from the prevention position. By opening the front door (21), the front door (21) can be opened.

  Further, the unauthorized opening prevention device (1A) includes a fixing means (7) that can be switched between a fixed state in which the stopper piece (3) is fixed at the blocking position and a released state in which the stopper is released. The stopper piece (3) can be fixed at the blocking position by (7) and can be released.

  Of course, the unauthorized opening prevention device (1A) is arranged in the gusset portion (23a) as the vicinity of the outside of the gaming machine (20). Therefore, even when the gaming machine (20) is replaced with a new one, the device (1A) can be applied to a new gaming machine without replacing the unauthorized opening prevention device (1A).

  Furthermore, the blocking position of the stopper piece (3) is set to a position where the unlocking operation part (22a) of the closed front door (21) is hidden. Therefore, in the state where the stopper piece (3) is disposed at the opening prevention position of the front door (21) and the opening of the front door (21) is prevented, the unlocking operation portion (22a) is moved from the vicinity of the front side to the stopper piece (3 ), The lock release operation part (22a) cannot be unlocked. Therefore, in order for an unauthorized person who has illegally obtained the unlocking key or a duplicate thereof to perform the unlocking operation on the unlocking operation unit (22a), first, the stopper piece (3) is moved from the blocking position to the allowable position. The stopper piece (3) is disposed at a position where the unlocking operation part (22a) can be unlocked by displacing the unlocking operation part (22a), thereby exposing the unlocking operation part (22a) to the front side of the front door (21). After that, it is necessary to perform an unlock operation on the unlock operation section (22a). That is, the unauthorized person needs to sequentially perform the operation of displacing the stopper piece (3) from the blocking position to the allowable position and the unlocking operation on the unlocking operation portion (22a), that is, performing these operations simultaneously. I can't. As a result, it takes time to open the front door (21), and thus, it is possible to exert a crime prevention effect that attempts to give up unauthorized opening strongly against unauthorized persons.

  Furthermore, since the unauthorized opening prevention device (1A) is provided with the re-fixing preventing means, if the stopper piece (3) is forcibly displaced from the blocking position to the allowable position by an unauthorized person, the stopper The piece (3) cannot be re-fixed at the blocking position, and the stopper piece (3) is thereby arranged at the allowable position instead of the blocking position by the biasing force of the coil spring (10a). As a result, the manager of the game store, the store clerk, etc. can easily determine visually whether or not the front door (21) has been opened illegally, and therefore there has been an unauthorized opening of the front door (21). Can be recognized quickly.

  Further, since the re-fixing prevention means has the fixing pin (8) as the low-strength portion (12), the stopper piece (3) is forcibly displaced from the blocking position to the allowable position by an unauthorized person. In this case, the tip of the fixing pin (7) as the low-strength portion (12) is damaged, so that it is possible to more reliably prevent the stopper piece (3) from being re-fixed at the blocking position.

  Further, the stopper piece (3) is displaceable across a number of blocking positions and permissible positions with a number of different positions in the front-rear direction as blocking positions, and the fixing means (7) is provided with the stopper piece (3). It can be fixed in a number of blocking positions. Therefore, this unauthorized opening prevention device (1A) can be applied to various models in which the thickness of the front door (21) of the gaming machine (20), the uneven shape of the front surface of the front door (21), and the like are different. That is, unauthorized opening of the front door (21) can be prevented for various models.

  Furthermore, since the fixing means (7) is configured to be able to control the unlocking of the stopper piece (3) by an electric signal, the fixing of the stopper piece (3) can be released by remote operation.

  8-13 is a figure for demonstrating the unauthorized opening prevention apparatus (1B) of the gaming machine which concerns on 2nd Embodiment of this invention.

  In these drawings, the same components as those of the unauthorized opening prevention device (1A) of the first embodiment are denoted by the same reference numerals. Hereinafter, the unauthorized opening prevention device (1B) of the second embodiment will be described. ) Will be described focusing on the differences from the unauthorized opening prevention device (1A) of the first embodiment.

  In the unauthorized opening prevention device (1B) of the second embodiment, as shown in FIGS. 8 to 11, the fixing means (7) includes a straight rod-like drive shaft (15) and the drive shaft (15). A spindle motor (14) composed of a stepping motor or the like to be rotationally driven, and a worm screw (13) fixed to the tip (front end) of the drive shaft (15) are provided.

  The motor (14) is an electric motor that can rotate in both forward and reverse directions, and is fixedly attached to the rear plate (2e) of the case (2) in the case (2).

  The drive shaft (15) is connected to the motor (14) via a torque coupling (15a). The torque coupling (15a) is a low strength portion (12) that is weak in strength in the unauthorized opening prevention device (1B) of the second embodiment. That is, the torque coupling (15a) breaks the torque coupling (15a) when a forward load larger than a predetermined load value is applied to the drive shaft (15). The torque coupling (15a) is separated from the torque coupling (15a). Further, when a rotational load greater than a predetermined load value is applied to the drive shaft (15), the torque coupling (15a) is damaged. Thus, the drive shaft (15) is separated from the torque coupling (15a). Thus, in the second embodiment, the torque coupling (15a) is a low strength portion (12) that is weak in strength in the unauthorized opening prevention device (1B), and the stopper piece (3) by the fixing means (7). It functions as a re-fixing prevention means for preventing re-fixing to the blocking position.

  A screw hole (4b) meshing with the worm screw (13) is provided in the support piece (4) so as to extend in the length direction (that is, the front-rear direction) of the support piece (4), and the screw hole (4b) ) Is formed at the center of the rear end surface of the support piece (4). And the worm screw (13) is arrange | positioned in this screw hole (4b) in the meshing state. Therefore, when the worm screw (13) is not rotated, the support piece (4) is fixed so as not to move in the front-rear direction, and the worm screw (13) rotates about the drive shaft (15). The fixing of the support piece (4) is released, and the support piece (4) is moved in the front-rear direction.

  As described above, since the screw hole (4b) is provided in the support piece (4) so as to extend in the length direction of the support piece (4), the stopper piece (3) is provided in the front-rear direction. A number of different positions are used as a blocking position, and are configured to be displaceable over the number of blocking positions and the allowable position. The fixing means (7) is configured to be able to fix the stopper piece (3) to a number of blocking positions. Yes.

  As shown in FIG. 11, the drive shaft (15) has a coil spring (10a) as an urging means (10) between the worm screw (13) and the torque coupling (15a). It is wound and supported in a compressed state in the axial direction of the spring (10a). The coil spring (10a) constantly urges the worm screw (13) forward by an urging force comprising the elastic restoring force. When the torque coupling (15a) is broken and the drive shaft (15) is separated from the torque coupling (15a), the support piece (4) is moved forward by the biasing force of the coil spring (10a). Accordingly, the stopper piece (3) is displaced from the blocking position to the allowable position.

  Control of the rotation start, rotation stop, rotation direction, rotation speed, and the like of the motor (14) is performed by the control unit (11).

  Next, the operation of the unauthorized opening prevention device (1B) of the second embodiment will be described below.

  In FIG. 9, the gaming machine (20) has the front door (21) locked in the closed state by the lock means (22). In this state, the support piece (4) of the unauthorized opening prevention device (1B) is , Only its front end protrudes slightly forward from the front end opening of the holding sleeve (5) (that is, the front position of the front plate (2b) of the case (2) and the front position of the gusset (23a)), and the other The portion is arranged in the case (2) (specifically, in the holding sleeve (5)). Further, as shown in FIGS. 10 and 11, the guided convex portion (4a) of the support piece (4) is disposed at the rear end portion of the straight portion (6a) of the guide hole (6) of the holding sleeve (5). Has been. Further, the coil spring (10a) is compressed in the axial direction between the worm screw (13) and the torque coupling (15a), so that an urging force including an elastic restoring force is accumulated in the coil spring (10a). Has been.

  Similarly to the first embodiment, the stopper piece (3) is disposed in the vicinity of the front side of the unlocking operation portion (22a) of the lock means (22) as an opening prevention position of the front door (21). Yes. Thereby, opening of the front door (21) is blocked by the stopper piece (3), and the unlocking operation part (22a) is locked to the lock / unlocking operation part (22a) by the stopper piece (3). It is hidden from the front side so that it cannot be unlocked.

  Further, the worm screw (13) in the fixing means (7) meshes with the screw hole (4b) of the support piece (4), whereby the support piece (4) is fixed so as to be immovable in the front-rear direction. . Furthermore, the guided convex part (4a) is arranged at the rear end part of the straight part (6a) of the guide hole (6), so that the support piece (4) cannot be rotated in the holding sleeve (5). It is fixed. Therefore, the stopper piece (3) provided in a fixed state at the front end of the support piece (4) is fixed so as not to move in the front-rear direction at the opening prevention position of the front door (21), and further, the support piece (4 ) Is fixed so that it cannot rotate.

  From this state, in order to open the front door (21) of the gaming machine (20), the stopper piece (3) of the unauthorized opening prevention device (1B) is moved from the opening prevention position of the front door (21) to the front door (21). A method of displacing to the open allowable position will be described below.

  First, a store clerk or the like transmits a command signal for displacing the stopper piece (3) to the open allowable position of the front door (21) from the remote control to the control unit (11) using the remote control.

  The signal transmitted from the remote controller is received by the receiver (11a) and transmitted to the controller (11). Then, a signal for rotating the motor (14) in a predetermined direction is issued by the control unit (11), and the motor (14) starts rotating in the predetermined direction. As a result, the worm screw (13) rotates in a predetermined direction around the drive shaft (15) via the drive shaft (15). Note that the rotation direction of the motor (14) and the worm screw (13) at this time is referred to as a “positive direction” for convenience of explanation.

  As the worm screw (13) rotates in the forward direction, the support piece (4) slides forward in the holding sleeve (5), and the guided projection (4a) is straightened to the guide hole (6). It moves forward from the rear end of the part (6a). Then, as the guided convex portion (4a) moves from the straight portion (6a) to the bent portion (6b) of the guide hole (6), the support piece (4) slides forward and the stopper piece ( It is rotated counterclockwise together with 3). Then, as shown in FIGS. 12 and 13, when the support piece (4) and the stopper piece (3) rotate 90 ° counterclockwise from the initial position, the store clerk or the like uses the remote control to remove the stopper piece (3). A command signal for fixing the position is transmitted from the remote control to the control unit (11).

  The signal transmitted from the remote controller is received by the receiver (11a) and transmitted to the controller (11). Then, a signal for stopping the rotation of the motor (14) in the positive direction is issued by the control unit (11) to stop the rotation of the motor (14). In this state, the stopper piece (3) is located at the front side of the gusset portion (23a) and in front of the gusset portion (23a) as an open-permitted position of the front door (21), as in the first embodiment. In a state of being extended downward from the front end of the support piece (4), the unlocking operation portion (22a) of the lock means (22) is exposed at a position far away from the front end.

  In the present invention, the control of stopping the rotation of the motor (14) in the forward direction is such that the rotation of the motor (14) is performed when the number of rotations from the start of rotation of the motor (14) reaches a preset number of rotations. It may be performed by the control unit (11) so as to stop, or may be performed by other methods.

  After the stopper piece (3) is thus placed in the open allowable position of the front door (21), the unlocking operation portion (22a) of the lock means (22) is the same as in the first embodiment. Is unlocked, the front door (21) is unlocked by the lock means (22), and the front door (21) is opened.

  Next, in order to prevent unauthorized opening of the front door (21) of the gaming machine (20) from the state where the front door (21) is opened, the stopper piece (3) of the unauthorized opening prevention device (1B) is moved to the front door ( 21) The method of arranging at the opening prevention position will be described below.

  First, the front door (21) of the gaming machine (20) is locked in a closed state by the lock means (22). Next, a store clerk or the like transmits a command signal for displacing the stopper piece (3) to the opening prevention position of the front door (21) from the remote control to the control unit (11) using the remote control.

  The signal transmitted from the remote controller is received by the receiver (11a) and transmitted to the controller (11). Then, a signal for rotating the motor (14) in the reverse direction is issued by the control unit (11), and the motor (14) starts rotating in the reverse direction. As a result, the worm screw (13) rotates in the reverse direction via the drive shaft (15).

  As the worm screw (13) rotates in the reverse direction, the support piece (4) slides backward in the holding case (5), and the guided projection (4a) bends the guide hole (6). The section (6b) moves to the straight section (6a). Further, along with this, the support piece (4) slides backward and rotates clockwise together with the stopper piece (3).

  And as shown in FIGS. 9-11, the stopper piece (3) was arrange | positioned in the front side vicinity of the lock release operation part (22a) of a front door (21) as an opening prevention position of a front door (21). At this time, a store clerk or the like transmits a command signal for fixing the position of the stopper piece (3) from the remote control to the control unit (11) using the remote control.

  The signal transmitted from the remote controller is received by the receiver (11a) and transmitted to the controller (11). Then, the controller (11) issues a signal for stopping the rotation of the motor (14) in the reverse direction, and the rotation of the motor (14) is stopped. Thereby, the stopper piece (3) is fixed to the opening prevention position of the front door (21).

  In the present invention, the reverse rotation of the motor (14) is controlled so that the rotation of the motor (14) is performed when the number of rotations from the start of rotation of the motor (14) reaches a preset number of rotations. It may be performed by the control unit (11) so as to stop, or may be performed by other methods.

  Further, in the unauthorized opening prevention device (1B) of the second embodiment, under the state shown in FIGS. 9 to 11, if an unauthorized person exposes the unlocking operation part (22a), the unlocking operation is performed. When the stopper piece (3) is forcibly moved forward using a predetermined tool such as a bar in order to perform the unlocking operation of the front door (21) with respect to the operation portion (22a), it is driven. A forward load larger than a predetermined load value is applied to the shaft (15), and thereby the torque coupling (15a) is damaged. As a result, the drive shaft (15) is separated from the torque coupling (15a). As a result, the stopper piece (3) cannot be re-fixed to the blocking position, and the support piece (4) is moved forward by the biasing force of the coil spring (10a), and the stopper piece (3) is moved accordingly. The front door (21) is always arranged at the open allowable position.

  Furthermore, when an unauthorized person performs an unauthorized opening of the front door (21), if a load in the rotational direction larger than a predetermined load value is applied to the drive shaft (15), the torque coupling (15a) is also applied. This causes breakage, thereby separating the drive shaft (15) from the torque coupling (15a). As a result, the stopper piece (3) cannot be re-fixed to the blocking position, and the support piece (4) is moved forward by the biasing force of the coil spring (10a), and the stopper piece (3) is moved accordingly. The front door (21) is always arranged at the open allowable position.

  Thus, the unauthorized opening prevention device (1B) of the second embodiment has the same advantages as the device (1A) of the first embodiment.

  FIGS. 15-20 is a figure explaining some cover bodies attached to the stopper piece (3) of the unauthorized opening prevention apparatus (1A) of the said 1st Embodiment.

  The cover body (16A) shown in FIGS. 15 and 16 has a design imitating fish as a design that conforms to the design of the front surface of the front door (21) of the gaming machine (20) on the front surface (17). Has been.

  Further, the cover body (16A) is formed of a material having a cushioning property (rubber, sponge, etc.) at least in contact with the front door (21), whereby the stopper piece (3) and the front door are formed. Damage to the front door (21) due to contact with (21) can be prevented. In the present embodiment, the cover body (16A) is made of rubber on the rear surface (back surface) side as a portion that contacts the front door (21), and the front surface (17) side is also made of rubber. Both parts are integrally formed.

  In the present invention, the cover body (16A) is not limited to being formed from the same kind of material at both portions, and may be formed from different materials, that is, For example, the part on the front surface (17) side may be made of plastic, and the part on the front surface (17) side may be fixed to and integrated with the rear surface side part made of rubber with an adhesive or the like.

  Further, the cover body (16A) is detachably attached to the stopper piece (3). That is, as shown in FIG. 16, the back surface (back surface) of the cover body (16A) is provided with a pocket-shaped insertion hole (18) into which the stopper piece (3) is inserted. A plurality of anti-extraction engaging projections (not shown) are provided inside the insertion hole (18). On the other hand, as shown in FIG. 17, the stopper piece (3) is formed with a plurality of engaging recesses (3a) that are detachably engaged with the engaging protrusions. Then, when the stopper piece (3) is inserted into the insertion hole (18) and the engaging protrusion engages with the engaging recess (3a) (3a), the cover body (16A) becomes the stopper piece (3). It is attached to the fixed state. On the other hand, when removing the cover body (16A) from this attached state, the engagement protrusions and the engagement recesses (3a) (3a) are engaged using a dedicated removal jig (not shown). The cover body (16A) is configured so that the cover body (16A) can be removed from the stopper piece (3) by being released.

  Thus, by attaching the cover body (16A) to the stopper piece (3), damage to the front door (21) due to contact between the stopper piece (3) and the front door (21) is prevented. Can be prevented.

  Furthermore, since the design of the front surface (17) of the cover body (16A) matches the design of the front surface of the front door (21), the cover body (16A) is attached to the stopper piece (3). In this case, the front surface (17) of the cover body (16A) is exposed to the front surface side of the front door (21), so that a problem that the design of the front surface of the front door (21) is impaired can be prevented. The front design of (21) can be maintained well. Furthermore, since this cover body (16A) is detachably attached to the stopper piece (3), when the design of the cover body (16A) does not match the design of the front surface of the front door (21), The cover body (16A) can be exchanged with one that matches the design on the front surface of the front door (21), whereby the design on the front surface of the front door (21) can be maintained well.

  The cover body (16B) shown in FIG. 18 has an electric decoration plate (19a) equipped with LEDs, a diffusing lens, and the like mounted on the front surface (17), thereby the front surface (17 of the cover body (16B). ) Is decorated. This electric decoration board (19a) receives a signal from the calling lamp device (24) or the like, and emits light according to the state of the gaming machine (20) (winning state, etc.), thereby changing to the state of the gaming machine (20). It is supposed to be able to produce a response. Other configurations of the cover body (16B) are the same as those of the cover body (16A).

  Thus, by attaching the cover body (16B) to the stopper piece (3), damage to the front door (21) due to contact between the stopper piece (3) and the front door (21) is prevented. The design of the front surface of the front door (21) can be further improved and the atmosphere can be raised.

  Further, the cover body (16B) is detachably attached to the stopper piece (3). Therefore, when the decoration of the cover body (16B) does not contribute to the improvement of the design of the front surface of the front door (21), the cover body (16B) contributes to the improvement of the design of the front surface of the front door (21). It can replace | exchange and, thereby, the design of the front surface of a front door (21) can be improved reliably.

  The cover body (16C) shown in FIG. 19 has a beverage container holding member (a paper cup, a beverage can, etc.) for holding a beverage container (such as a paper cup or a beverage can) on its front surface (17) as a holding portion for holding other members. 19b) is fixed. Other configurations of the cover body (16C) are the same as those of the cover body (16A).

  Thus, by attaching the cover body (16C) to the stopper piece (3), damage to the front door (21) due to contact between the stopper piece (3) and the front door (21) is prevented. It is possible to hold the beverage container without having to attach the beverage container holding member (19b) to the gaming machine (20) separately. Further, the cover body (16C) is detachably attached to the stopper piece (3). Therefore, when the holding member (19b) is unnecessary, the cover body (16C) can be removed from the stopper piece (3).

  The cover body (16D) shown in FIG. 20 has two holding holes for holding a small flag (including a bill) on the front surface (17) as a holding portion for holding other members. The flag holding portions (19c) and (19c) are fixed. The flag holding unit (19c) holds a flag for effect such as “exploding” as well as a small flag of “big hit”. In the present invention, the flag holding part (19c) may have a clip part for holding the small flag instead of the holding hole. Other configurations of the cover body (16D) are the same as those of the cover body (16A).

  In the present invention, although not shown, the cover body may include an ashtray holding unit that holds the ashtray as a holding unit that holds other members, or may include another holding unit. .

  Moreover, in this invention, a cover body (16A-D) may be attached to the stopper piece (3) of the unauthorized opening prevention apparatus (1B) of the said 2nd Embodiment.

  As mentioned above, although several embodiment of this invention was described, this invention is not limited to what was shown to the said embodiment, It can change variously.

  For example, in the first embodiment, the low-strength portion (12) that is weak in strength is the fixing pin (8). However, in the present invention, for example, the solenoid (7a) is held in a fixed state. The solenoid holding plate (2m) may correspond to the low-strength portion (12), and other portions may correspond to the low-strength portion (12). In the second embodiment, the low-strength portion (12) is the torque coupling (15a). However, in the present invention, for example, the thread of the worm screw (13) is the low-strength portion (12). The connecting portion between the worm screw (13) and the drive shaft (15) may correspond to the low-strength portion (12), or the other portion may be the low-strength portion (12). It may correspond to.

  In the present invention, the re-fixing prevention means is limited to the low-strength portion (12) that cannot be re-fixed to the blocking position of the stopper piece (3) by the fixing means (7) by being broken. It is not something. For example, it may be configured such that it can be deformed or displaced by an improper force, but can be returned to a re-fixable state without replacement of parts.

  In the present invention, the urging means (10) is not limited to the coil spring (10a), and may be a spring other than the coil spring (such as an air spring).

  In the above embodiment, the unauthorized opening prevention device is applied to a pachinko gaming machine. However, in the present invention, it may be applied to a slot machine (including a pachislot machine). It may be applied to other gaming machines.

  INDUSTRIAL APPLICABILITY The present invention can be used for an unauthorized opening prevention device for a gaming machine that prevents unauthorized opening of a front door of a gaming machine such as a pachinko machine or a slot machine.

FIG. 1 is an exploded perspective view of an unauthorized opening prevention device for a gaming machine according to a first embodiment of the present invention. FIG. 2 is a front view showing a state in which the opening of the front door of the gaming machine is blocked by the unauthorized opening prevention device. FIG. 3 is a perspective view of a state in which the stopper piece of the unauthorized opening prevention device is arranged at the opening prevention position of the front door. FIG. 4 is a cross-sectional view of a state in which the stopper piece of the unauthorized opening prevention device is disposed at the opening prevention position of the front door. FIG. 5 is a front view of a state in which the opening of the front door of the gaming machine is permitted by the unauthorized opening prevention device. FIG. 6 is a perspective view of a state in which the stopper piece of the unauthorized opening prevention device is disposed at the opening allowance position of the front door. FIG. 7 is a cross-sectional view of the state in which the stopper piece of the unauthorized opening prevention device is disposed at the opening allowance position of the front door. FIG. 8 is an exploded perspective view of the unauthorized opening prevention device for the gaming machine according to the second embodiment of the present invention. FIG. 9 is a perspective view of a state in which the stopper piece of the unauthorized opening prevention device is disposed at the opening prevention position of the front door. FIG. 10 is a cross-sectional view showing the structure inside the case in a state where the stopper piece of the unauthorized opening prevention device is disposed at the opening prevention position of the front door. FIG. 11 is a cross-sectional view of the state in which the stopper piece of the unauthorized opening prevention device is disposed at the opening prevention position of the front door. FIG. 12 is a perspective view of a state in which the stopper piece of the unauthorized opening prevention device is arranged at the opening allowable position of the front door. FIG. 13 is a cross-sectional view showing the structure inside the case in which the stopper piece of the unauthorized opening preventing device is disposed at the opening allowable position of the front door. FIG. 14 is a cross-sectional view of the state in which the stopper piece of the unauthorized opening prevention device is disposed at the opening allowance position of the front door. FIG. 15 is a perspective view of the cover body attached to the stopper piece of the unauthorized opening prevention device of the first embodiment as seen from the front side. FIG. 16 is a perspective view of the cover body as viewed from the rear side. FIG. 17 is a perspective view of a stopper piece to which the cover body is attached in the unauthorized opening prevention device of the first embodiment. FIG. 18 is a perspective view of a modification of the cover body attached to the stopper piece of the unauthorized opening prevention device of the first embodiment as viewed from the front side. FIG. 19 is a perspective view of another modified example of the cover body attached to the stopper piece of the unauthorized opening prevention device of the first embodiment as viewed from the front side. FIG. 20 is a perspective view of still another modification example of the cover body attached to the stopper piece of the unauthorized opening prevention device of the first embodiment as viewed from the front side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A, 1B ... Unjust release prevention device 2 ... Case 3 ... Stopper piece 4 ... Supporting piece 4a ... Guided convex part 4b ... Screw hole 5 ... Holding sleeve 6 ... Guide hole 6a ... Straight part 6b ... Bending part 7 ... Fixing means 7a ... Solenoid 8 ... Fixing pin 9 ... engaging groove 10 ... biasing means 10a ... coil spring 11 ... control part 12 ... low strength part 13 ... worm screw 14 ... spindle motor 15 ... drive shaft 15a ... torque couplings 16A, 16B, 16C, 16D ... cover body 20 ... gaming machine 21 ... front door 22 ... this locking means 22a ... unlocking operation part 23 ... island 23a ... gusset part 24 ... calling lamp device

Claims (9)

An unauthorized opening prevention device for a gaming machine that is disposed outside a gaming machine and prevents unauthorized opening of a front door of the gaming machine,
A stopper piece that can be displaced to a blocking position in the vicinity of the front side of the front door that interferes with the front door when the front door is opened, and an allowable position that does not interfere with the opened front door,
A fixing means capable of switching between a fixed state in which the stopper piece is fixed at the blocking position and a released state in which the stopper is released;
An apparatus for preventing unauthorized opening of a gaming machine, comprising: On the front surface of the front door of the gaming machine, there is provided a lock release operation section for switching from the locked state where the front door is locked to the closed state to the released state where the lock is released
The unauthorized opening prevention device for a gaming machine according to claim 1, wherein the blocking position of the stopper piece is set to a position where the unlocking operation portion of the closed front door is hidden. Biasing means for biasing the stopper piece from the blocking position toward the allowable position;
When the stopper piece fixed in the blocking position by the fixing means is forcibly displaced from the blocking position to the allowable position by an external force, the stopper piece is prevented from being re-fixed to the blocking position by the fixing means. Fixing prevention means,
An unauthorized opening prevention device for a gaming machine according to claim 1 or 2, further comprising:   The re-fixing prevention means makes it impossible to re-fix the stopper piece to the blocking position by the fixing means when the stopper piece is forcibly displaced from the blocking position to the allowable position by an external force. 4. The unauthorized opening prevention device for a gaming machine according to claim 3, comprising a low strength portion. The stopper piece is displaceable across the plurality of blocking positions and the allowable position, with a plurality of positions different in the front-rear direction as blocking positions,
The unauthorized opening prevention device for a gaming machine according to any one of claims 1 to 4, wherein the fixing means is capable of fixing a stopper piece to the plurality of blocking positions.   6. The unauthorized opening prevention device for a gaming machine according to claim 1, wherein the fixing means is configured to be able to control the release of the stopper piece by an electric signal.   The unauthorized opening prevention device for a gaming machine according to any one of claims 1 to 6, further comprising a cover body that is attached to the stopper piece and prevents damage to the front door due to contact between the stopper piece and the front door.   The cover body is provided with a holding part for holding at least a front surface design of the front door, a decoration on the front surface of the front door, or holding another member, and The unauthorized opening prevention device for a gaming machine according to claim 7, wherein the device is detachably attached to the stopper piece.   A gaming machine comprising the unauthorized opening prevention device according to any one of claims 1 to 8.

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