JP2005245801A - Ball tray locking mechanism for pinball machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent illegal operation to the inside of a Pachinko game machine after making only a ball tray openable and closable without opening a glass door of the Pachinko game machine. <P>SOLUTION: The Pachinko game machine PM is provided with: a front frame 2; a ball tray 30 fitted to the lower part of the front surface of the front frame 2 to be freely opened and closed with respect to the front frame 2; the glass door 5 positioned at the upper part of the ball tray 30 and fitted to be freely opened and closed with respect to the front frame 2; and a locking operation part 9 for locking or unlocking operation of the ball tray 30. The ball tray locking mechanism provided at the Pachinko game machine PM has a shutter unit 40 provided with a shutter blade 60 which is fitted extending to the right and left of the ball tray 30 and which is vertically movable according to the locking or unlocking operation of the locking operation part 9. In a state where the ball tray 30 and the glass door 5 is closed by the front frame 2, moving up of the blade 60 makes the upper part of the blade 60 and the lower end of the glass door 5 oppose each other to close a gap between the upper part of the ball tray 30 and the lower part of the glass door 5 through nearly the whole length to close and lock the ball tray 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a ball tray locking mechanism of a ball game machine, and more specifically, a ball tray is closed and locked on the back side of a ball tray opened and closed laterally with respect to a front frame provided in the ball game machine. The present invention relates to a ball tray locking mechanism attached to prevent unauthorized operation of the machine.

  In the above ball game machines (pachinko machines), the front frame is attached to the outer frame of the outer shape using a hinge mechanism and a locking mechanism so that it can be opened / closed and closed / closed. A ball tray located at the lower part of the glass door is configured to be attached to the front frame via a hinge mechanism so that it can be opened and closed laterally.

The ball tray configured in this way is provided on the back side of the backing plate that is a member constituting the ball tray, and there is a defect in the hitting ball launching device that launches the game ball toward the game board in front of the pachinko machine. Except when it is necessary to open the ball tray, the front frame is closed and locked to prevent the player from touching the inside of the pachinko machine. In addition, even when the ball tray is closed and locked, it prevents unauthorized operation of the circuit board inside the pachinko machine by preventing wires from entering through the gap between the ball tray and the glass door. A mechanism is provided in the gap between the ball tray and the glass door. As described in Patent Document 1, this unauthorized operation prevention mechanism is provided with an engaging portion extending above the ball tray at the top of the ball tray, and in a state where the ball tray and the glass door are closed to the front frame, The engaging part and the lower rear surface of the glass door are engaged with each other, and the ball dish is closed and held in such a manner as to close the gap between the ball dish and the glass door over substantially the entire length.
JP 2003-190545 A

  By the way, in the ball game machine configured as described above, the ball tray and the glass door are engaged with each other when the ball tray and the glass door are closed to the front frame. However, it could not be opened. For this reason, when it is desired to open the ball tray, the unlocking operation of the locking device for locking or unlocking the glass door is first performed to open the glass door, and then the ball tray is placed on the front frame. On the other hand, the operation to open the ball tray was troublesome. On the other hand, in order to avoid such troublesome operations, in order to allow the ball tray to be opened and closed with respect to the front frame regardless of the locking / unlocking operation of the glass door, it extends to the glass door side at the top of the ball tray. Since the engagement part cannot be provided and the gap between the ball tray and the glass door cannot be closed when the ball tray and the glass door are closed to the front frame, a wire or the like can be removed between the ball tray and the glass door. There was a risk that the inside of the pachinko machine could be tampered with.

  In view of the problems as described above, in the present invention, it is possible to open and close only the ball tray with respect to the front frame without unlocking and opening the glass door, and to prevent unauthorized operation inside the pachinko machine. It is an object of the present invention to provide a ball tray locking mechanism for a ball game machine equipped with a tampering prevention mechanism.

  In order to solve the above-described problems, a ball tray locking mechanism of a ball game machine according to the present invention includes a front frame, a ball tray attached to the front lower portion of the front frame so as to be openable and closable with respect to the front frame, A ball game machine (for example, including a glass door that is attached to the front frame and can be opened and closed with respect to the front frame, and a locking operation unit that is provided on the front surface of the ball tray and that locks or unlocks the ball tray. This is a ball tray locking mechanism of the pachinko machine PM) according to the embodiment, and is a movable member (for example, a movable member that extends vertically to the ball tray and can be moved up and down with respect to the ball tray in accordance with the locking or unlocking operation of the locking operation unit. And the shutter blade 60 in the embodiment (for example, the shutter unit 40 in the embodiment), and the upward movement of the movable member in a state where the ball tray and the glass door are closed to the front frame The upper part of the movable member and the And lower scan door gap between top and bottom of the glass door of the sphere dish with opposite is closed by ball dish over substantially the whole length is locked closed.

  According to the ball tray locking mechanism of the ball game machine according to the present invention, a mechanism for independently locking and unlocking the ball tray is provided on the contact plate constituting the ball tray, and the glass door is unlocked and opened. It is the structure which can open only a ball tray with respect to a front frame, without it. For this reason, when it is necessary to open a ball tray, the troublesome operation of unlocking and opening the glass door is unnecessary. Moreover, if the ball tray locking mechanism is locked in a state where the ball tray and the glass door are closed with respect to the front frame, the upper portion of the ball tray and the lower rear surface of the glass door are engaged, and the ball tray and the glass door are engaged. The ball tray is closed and held in such a way as to cover the gap over almost the entire length, and it is possible to prevent wires from entering through the gap between the ball tray and the glass door. There is no fear of being defeated.

  Hereinafter, a preferred embodiment of a ball tray locking mechanism of a ball game machine according to the present invention will be described in detail with reference to the accompanying drawings. First, a schematic configuration of the pachinko machine PM having the ball tray locking mechanism will be described with reference to FIG. FIG. 1 shows an external front view of the pachinko machine PM.

  The pachinko machine PM is configured to have a rectangular frame size and has a vertically fixed holding frame. The pachinko machine PM has a rectangular frame size corresponding to the front opening of the outer frame 1 and a front frame 2 for opening and closing mounted on the front left side. The hinge members 3a and 3b arranged on the upper and lower sides are attached so that they can be opened and closed laterally and attached and detached, and are normally held in a closed state engaged with the outer frame 1 using a locking device 4 provided on the right side of the front. Is done.

  On the front side of the front frame 2, there is a glass door 5 that can be seen through the game board 20 through a transparent plate material such as a polycarbonate plate or a glass plate that has a rectangular shape matched to the front area of the front frame 2 and is attached to the center. Further, a ball tray 30 that aligns the game balls one by one at the lower part of the glass door 5 and leads them to a hitting ball launching device (not shown) provided on the back surface of the front frame 2 is provided by a hinge mechanism built in the left edge. 2 can be opened / closed and attached / detached sideways. The ball tray 30 is a plate 31 that is a horizontally long rectangular plate that can be opened and closed horizontally with respect to the front frame 2, and is attached to the surface side of the pad 31 (the front side of the pachinko machine PM). It is comprised from the dish part 32 which stores the game ball | bowl with the width | variety of the front-back direction on the left side becoming large. Further, a lower ball tray 7 is provided at the lower part of the front frame 2, and an operation handle 8 for performing a game ball launching operation is attached along with the lower ball tray 7.

  The game board 20 includes a decorative board (also referred to as a veneer) 21 having a predetermined design cell attached to a surface of a laminated plywood having a thickness of about 19 mm cut into a predetermined shape. On the front side of the decorative plate 21, a belt-like outer rail 24a and an inner rail 24b are fixed in an arc shape, and a game area PA is defined on the inner side surrounded by the guide rails 24a and 24b. Along with a large number of nails, the game area PA is attached with a general prize tool 26a, a start prize tool 26b, an award tool 26 such as an attacker 26c, and a symbol display device 28 for displaying a predetermined symbol according to the progress of the game. At the lower end of the game area PA, there is provided an out port 27 through which the game balls that have fallen without winning the winning device 26 are discharged to the back side of the game board 20.

  When playing the game, the glass door 5 is held in a closed state that covers the front surface of the front frame 2 using the locking device 4 and a lock mechanism (not shown). Further, when playing a game, the ball tray 30 is locked using a shutter unit 40 which will be described later by a key operation of a locking operation unit 9 provided on the front surface side of the abutting plate 31, and the front surface of the front frame 2. Is held closed. The game is started by storing the game balls in the ball tray 30 and rotating the operation handle 8, and the game balls stored in the ball tray 30 are intensified according to the rotation operation angle of the operation handle 8 one by one. In this way, the game area PA is launched and a pachinko game is developed.

  In the pachinko machine PM configured as described above, a ball tray locking mechanism configured to prevent foreign matter from entering between the ball tray 30 and the glass door 5 is provided. The ball tray locking mechanism provided in the pachinko machine PM will be described in detail with reference to FIGS.

  Here, FIG. 2 is a perspective view of the shutter unit 40 constituting the ball tray locking mechanism according to the present invention, and FIG. 3 is a rear view of each part in a state in which the shutter unit 40 is detached and disassembled from the contact plate 31 of the pachinko machine PM. 4 is a peripheral view of the rotating arm 80 constituting the shutter unit 40, and FIG. 5 is a view showing the contact plate 31 in a state where the shutter plate 60 constituting the shutter unit 40 is moved upward and the ball tray 30 is closed and locked. FIG. 6 is a rear view of the contact plate 31 in a state where the shutter blade 60 constituting the shutter unit 40 is moved downward and the ball tray 30 is unlocked, and FIG. FIG. 8 is a side sectional view of the periphery of the contact plate 31 in a state where the ball tray 30 is closed and locked. FIG. 8 shows the contact plate 3 in a state where the shutter blade 60 is moved downward and the ball tray 30 is unlocked. It is a side sectional view of the periphery.

  As shown in FIGS. 2 and 3, the ball tray locking mechanism according to the present invention is mainly composed of a shutter unit 40 that is unitized with a shutter blade 60 that can be moved up and down. It is detachably attached to a shutter unit attaching portion 33 provided on the back side so as to extend in the left-right direction. The shutter unit mounting portion 33 is provided with four screw holes 34a, 34b, 34c, and 34d for fixing the shutter unit 40. The shutter unit mounting portion 33 is provided with a plurality of proximity ribs 36 that protrude to the back side of the abutting plate 31 so as to extend left and right. When the shutter unit 40 is mounted on the shutter unit mounting portion 33, the proximity rib 36 has a length close to a shutter blade 60 (to be described later) constituting the shutter unit 40 (FIGS. 7 and 7). 8). The proximity rib 36 is formed to extend horizontally so that the shutter blade 60 can be guided from the side of the abutting plate 31 with respect to the movement of the shutter blade 60.

  The shutter unit 40 includes a shutter base 50 serving as a substrate of the shutter unit 40, a first arm portion 71, and a second arm portion 72. The link arm 70 is bent into a square shape, and is a plate-shaped shutter. The blade 60, one end attached to the locking operation unit 9, and the other end engaged with the first arm portion 71 of the link arm 70 through the long hole 81, the second arm portion 72 of the link arm 70 and the shutter. It comprises a compression spring 73 and the like attached across the base 50. Each member excluding the compression spring 73 is molded into the shape shown in the figure by molding means such as injection molding using a resin material such as ABS resin.

  The shutter base 50 is a horizontally long rectangular plate, and screw holes 51a, 51b, 51c, 51d for fixing the shutter base 50 to the shutter unit mounting portion 33 of the abutting plate 31 are provided at two positions on the left and right sides, respectively. Is provided. A projecting cylindrical shaft 52 is provided at a substantially central portion of the shutter base 50 so that the link arm 70 can be pivotally supported. The shutter base 50 is provided with a locking hook 53 for hooking a compression spring 73 having one end attached to the second arm portion 72 of the link arm 70. Furthermore, a pair of left and right symmetric shapes of engaging holes 54 and 55 that extend in the vertical direction are formed at the end of the shutter base 50 and at a position spaced apart from the shutter base 50 by a predetermined distance. ing.

  The shutter blade 60 has a crank-like shape (see FIG. 7) in which upper and lower flat plates are offset back and forth, and extends to the left and right with approximately the same length as the pad 31. The upper plate is engaged with the shutter engaging portion 5a of the glass door 5 to form a flat engaging portion 62 for closing the ball tray 30, and the lower plate 61 is provided with a protruding cylindrical shaft-like support. A shaft 63 is provided so that the second arm portion 72 of the link arm 70 can be pivotally supported. A pair of symmetrical guide portions 64 and 65 are provided in the vicinity of the end portion of the plate 61 and at a position spaced apart from the end portion of the plate 61. The guide portions 64 and 65 are formed with a portion that protrudes from the plate 61 and a portion in which the tip is bent in the left-right direction of the plate 61 (of the pair of guide portions 64 and 65, One guide part 64 has a structure bent to the left, and the other guide part 65 has a structure bent to the right. An opening 66 that opens upward is formed on the left side when viewed from the back side of the shutter blade 60, and as shown in FIG. 2, the rotating arm 80 passes through the opening 66 from the front side to the back side of the abutting plate 31. It is the structure attached to the back side of the locking operation part 9 toward.

  The link arm 70 is provided with two cylindrical boss-like bearing portions 74 and 75 protruding in the thrust direction. Of these, the bearing portion 74 is fitted and supported by a support shaft 52 that is formed by protruding from the shutter base 50. Further, the bearing portion 75 is fitted and supported by a support shaft 63 which is formed by protruding from the shutter blade 60. Further, a projecting cylindrical shaft 76 that engages with the elongated hole 81 of the rotating arm 80 is provided at the end of the first arm 71.

  The rotating arm 80 includes a cylindrical shaft-shaped portion that can be attached to the locking operation unit 9 and an arm portion having a long hole 81. As shown in FIG. 2 and FIG. 4, it is rotated to the back side of the locking operation unit 9 that has a key hole and can be rotated to lock or unlock the ball tray 30 with the key inserted into the key hole. An arm 80 is attached, and the arm portion of the turning arm 80 can be swung according to the turning operation of the locking operation unit 9. When the arm portion of the turning arm 80 is swung, the operating force from the locking operation portion 9 is provided via the support shaft 76 of the first arm portion 71 of the link arm 70 that engages with the elongated hole 81 of the turning arm 80. Is transmitted to the link arm 70, and the link arm 70 can be swung up and down around the support shaft 52 as a swing center. That is, when the locking operation unit 9 is locked or unlocked, the first arm unit 71 and the rotating arm 80 are swung from the state shown by the solid line in FIG. 4 to the state shown by the chain line. .

  The shutter unit 40 configured as described above is assembled by attaching the compression spring 73 to the second shaft with the bearing portion 75 attached to the support shaft 63 of the shutter blade 60 and the bearing portion 74 attached to the support shaft 52 of the shutter base 50. Attached between the arm portion 72 and the locking hook 53 of the shutter base 50. At this time, the pair of guide portions 64 and 65 of the shutter blade 60 are fitted into the pair of engagement holes 54 and 55 of the shutter base 50, respectively, so that the guide portions 64 and 65 are engaged with the back side of the shutter base 50. To be. Then, the rotating arm 80 is attached to the back side of the locking operation unit 9. In this state, the elongated hole 81 and the support shaft 76 of the first arm portion 71 are engaged. The screw holes 34a, 34b, 34c, 34d of the shutter base 50 and the screws 35a, 35b, 35c, 35d are screwed together in a state where the shutter unit 40 is assembled to the abutting plate 31. In this way, the shutter unit 40 can be attached to the shutter unit attachment portion 33 of the abutting plate 31.

  As shown in FIG. 5, the shutter unit 40 attached to the contact plate 31 is pivotally connected to the support shaft 52 of the shutter base 50 with the bearing portion 74 of the link arm 70, and to the support shaft 63 of the shutter blade 60. The bearing portion 75 of the link arm 70 is pivoted, and the pivot shaft 80 of the first arm portion 71 of the link arm 70 and the elongated hole 81 of the rotation arm 80 are engaged with each other, whereby the rotation arm 80 is The link arm 70 is pivoted up and down about the support shaft 52 by being rotated by the operation of the locking operation unit 9.

  When the link arm 70 swings in the vertical direction, the compression spring 73 is passed and attached between the second arm portion 72 of the link arm 70 and the locking hook 53 of the shutter base 50, so that the link The arm 70 is always urged so as to rotate counterclockwise about the support shaft 52, and is always urged in the direction in which the shutter blade 60 moves upward with respect to the shutter base 50 (in the direction of the glass door 5). It has come to be supported.

  In a state where the ball tray 30 and the glass door 5 are closed with respect to the front frame 2 and the shutter blade 60 is in the closed position of the ball tray 30 (a state in which the shutter blade 50 is moved upward with respect to the shutter base 50), When it is rotated clockwise (when unlocking operation is performed to rotate clockwise as viewed from the front of the pachinko machine PM), the support shaft 76 pressed by the rotation of the locking operation unit 9 is moved to the locking operation unit 9. By moving up in the long hole 81, the link arm 70 rotates clockwise around the support shaft 52 while resisting the elastic force of the compression spring 73. As the link arm 70 rotates, the shutter blade 60 pressed through the support shaft 63 moves down to a height at which the upper surface of the engaging portion 62 substantially coincides with the upper surface of the contact plate 31. At this time, the shutter blade 60 moves so as to be guided by the guide portions 64 and 65 engaged with the shutter base 50 and the proximity rib 36 adjacent to the shutter blade 60 from the abutting plate 31 side.

  FIG. 6 shows the shutter blade 60 moved to the position where the ball tray 30 is unlocked in this way. The state in which the shutter blade 60 is moved downward as shown in FIG. 6 is as long as the locking operation unit 9 is rotated and the rotation arm 80 is pressed in the counterclockwise direction (on the pachinko machine PM). As long as it is operated clockwise as viewed from the front).

  On the other hand, when the pressure on the locking operation unit 9 in the direction in which the rotation arm 80 rotates counterclockwise is released with the shutter blade 60 moved downward (when the locking operation is performed), the restoring force of the compression spring 73 is restored. As a result, the link arm 70 rotates counterclockwise about the support shaft 52, and the shutter blade 60 moves up to its original height. At this time, the support shaft 76 at the end of the first arm portion 71 moves downward, the rotation arm 80 is pressed via the support shaft 76, and the rotation arm 80 rotates clockwise to lock the locking operation unit 9. Returns to the original state before the rotation operation.

  As shown in FIG. 7, the lower end portion of the glass door 5 is bent in the direction of the back side of the pachinko machine PM, and the front end thereof is formed with a shutter engaging portion 5a having a crank shape. In a state where the ball tray 30 and the glass door 5 are closed to the front frame 2, when the shutter blade 60 is moving upward, the engaging portion 62 on the shutter blade 60 and the shutter engaging portion 5 a of the glass door 5 Engage with each other. Therefore, in a state where the locking operation unit 9 is locked and the shutter blade 60 is moving upward, even if the ball tray 30 is opened toward the left in FIG. Since the shutter blade 60 is engaged with the shutter engaging portion 5a in contact with the portion 5a, the movement of the ball tray 30 is restricted and the ball tray 30 is not opened with respect to the front frame 2.

  At this time, as shown in FIGS. 5 and 7, since the gap between the upper part of the ball tray 30 and the lower end of the glass door 5 is closed over substantially the entire length, the locking operation unit 9 is locked. In such a case, the wire or the like can be prevented from entering through the gap between the ball tray 30 and the glass door 5, so that there is no possibility of an unauthorized operation on the circuit board or the like inside the pachinko machine.

  On the other hand, in the state where the locking operation unit 9 is unlocked, the shutter blade 60 is moved down by the action of the link arm 70 and the like as described above, and as shown in FIG. The end surface moves below the shutter engaging portion 5a and becomes substantially equal to the height of the upper end surface of the contact plate 31. Therefore, in this state, when the ball tray 30 is opened toward the left in FIG. 8, the engaging portion 62 does not come into contact with the shutter engaging portion 5a, and the ball tray 30 can be opened. It is.

  Note that the scope of the present invention is not necessarily limited to the above-described embodiment. For example, in the above-described embodiment, the link is obtained by continuously pressing the rotation arm 80 in the counterclockwise direction by rotating the locking operation unit 9 (clockwise as viewed from the front of the pachinko machine PM). The shutter blade 60 is moved downward through the arm 70 and the shutter blade 60 is moved upward by releasing the pressure applied to the locking operation unit 9, but is fixed in a state where the shutter blade 60 is moved upward or downward, You may comprise so that rotation operation of the locking operation part 9 that the state is hold | maintained is enabled.

  In the above-described embodiment, the compression spring 73 is attached between the second arm portion 72 of the link arm 70 and the locking hook 53 of the shutter base 50, but the tension spring is straddled between them. You may make it attach. When a tension spring is used, the locking hook 53 is attached to the shutter base 50 so as to be positioned above the link arm 70, and the tension spring pulls up the second arm portion 72 of the link arm 70. Always be energized.

  In this way, as in the case where the compression spring 73 is used, when the locking operation portion 9 is unlocked, the link arm 70 rotates clockwise around the support shaft 52 while resisting the elastic force of the tension spring. Then, the upper surface of the engaging portion 62 of the shutter blade 60 can be moved down to a height that substantially matches the upper surface of the backing plate 31. On the other hand, when the locking operation portion 9 is locked, the link arm 70 is rotated counterclockwise about the support shaft 52 by the restoring force of the tension spring, and the shutter blade 60 is moved with respect to the contact plate 31. It moves up to its original height and faces the shutter engaging portion 5a of the glass door 5.

  Furthermore, in the above embodiment, the shutter unit 40 is attached to the backing plate 31. However, the opening and closing of the ball tray 30 is restricted, and the gap between the ball tray 30 and the glass door 5 is blocked. Since the operation may be prevented, the shutter unit 40 may be configured to be attached to the back side of the glass door 5. According to such a configuration, when the locking operation portion of the ball tray 30 is locked, the shutter blades constituting the shutter unit 40 provided on the glass door 5 are moved downward so as to face the upper part of the contact plate 31. Then, the ball tray 30 is closed so as not to be opened. At this time, it is possible to prevent the gap between the ball tray 30 and the glass door 5 from being blocked over substantially the entire length and intruding the wire or the like into the pachinko machine PM. On the other hand, when the unlocking operation of the locking operation portion of the ball tray 30 is performed, the shutter blade can be moved upward to open the ball tray 30 with respect to the front frame 2.

  Further, the mechanism for moving the shutter blade 60 up and down is not limited to the mechanism interlocked with the operation of the locking operation unit 9 as described above, and may take other forms. For example, a form in which the vertical movement of the shutter blade 60 is interlocked with the movement of a lockable metal fitting capable of moving up and down to lock the ball tray 30 to the front frame 2 may be employed. In such a case, the effect that the ball tray 30 can be more firmly closed and locked to the front frame 2 can be obtained.

It is a front view of the pachinko machine shown as an example of a bullet ball game machine provided with a ball tray locking mechanism concerning the present invention. It is a perspective view of the shutter unit which comprises the said ball tray locking mechanism. It is a rear view of each part in the state where the shutter unit was removed and disassembled from the contact plate of the pachinko machine. It is a periphery view of the rotation arm which comprises the said shutter unit. It is a rear view of the contact plate in a state where the shutter blade constituting the shutter unit is moved up and the ball tray is closed and locked. It is a rear view of the contact plate in a state where the shutter blade is moved down and the ball tray is unlocked. It is a sectional side view of the periphery of the contact plate in a state where the shutter blade constituting the shutter unit is moved up and the ball tray is closed and locked. It is a sectional side view of the periphery of the contact plate in a state where the shutter blade is moved down and the ball tray is unlocked.

Explanation of symbols

PM Pachinko machine (ball game machine)
2 Front frame 5 Glass door 5a Shutter engagement part (glass door)
9 Locking operation unit 30 Ball plate 31 Batter plate (ball plate)
32 Plate (ball tray)
40 Shutter unit (shutter device)
50 Shutter base

Claims (1)

A front frame, a ball tray attached to the front lower part of the front frame so as to be openable and closable with respect to the front frame, and a glass door located on the top of the ball dish and attached to be openable and closable with respect to the front frame; A ball tray locking mechanism of a ball game machine, comprising a locking operation unit that is provided on the front surface of the ball tray and performs locking or unlocking operation of the ball tray,
A shutter device that includes a movable member that is attached to the ball pan so as to extend left and right and is movable up and down with respect to the ball pan in accordance with locking or unlocking operation of the locking operation unit;
With the ball tray and the glass door closed by the front frame, the upper part of the movable member and the lower part of the glass door are opposed by the upward movement of the movable member, and the upper part of the ball dish and the glass door A ball tray locking mechanism of a ball game machine, wherein a gap with a lower portion of the ball bowl is closed over substantially the entire length and the ball tray is closed and locked.

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