JP2010167115A - Pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a Pachinko game machine capable of smoothly stopping and holding a performance member for executing a sign performance of a big winning in a fixed attitude at all times without backlash. <P>SOLUTION: Each one end part of two coil springs 34 is connected to the back surface center part of a performance member 30 lowered from a standby position arranged on the front surface upper side of a liquid crystal display device 15 by the synchronous reverse direction swing of a pair of arms 28, and the other end part of one coil spring 34 is connected to the inner end part of one arm 28. Further, the other end part of the other coil spring 34 is connected to the inner end part of the other arm 28, the performance member 30 is equally urged in both left and right directions by the two coil springs 34, and the backlash of the performance member 30 is suppressed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pachinko machine equipped with an accessory mechanism that produces a sign of reach or jackpot.

  The inside of the guide rail attached to the front of the game board is the game area, and when the game ball launched into the game area wins the start winning device, the display of the symbol display device provided in the center of the game board When a special symbol is displayed on the screen for a predetermined time and a plurality of special symbols are stopped and displayed in a specific stop display mode, the door that has blocked the entrance of the special variable winning device is determined in advance as a jackpot game state. In a pachinko machine that opens and closes according to the operating conditions, a part of the special symbol is stopped and displayed on the display screen of the symbol display device, or when it reaches a reach, or a super-reach with a very high probability of being a big hit There is known a technique in which the effect member is moved toward the symbol display device when the time is reached to enhance the effect.

  In the above pachinko machines equipped with an accessory mechanism for performing a reach or jackpot sign, there are ones in which the directing member is slid up and down or left and right, and one that is swung in a pendulum shape. . When the effect member is returned to the standby position arranged around the symbol display device and stopped, or when moving to the effect position and stopped, if the rattle occurs without stopping smoothly, the accessory mechanism This will give the player an anxiety as if a defect has occurred, and the production effect will be significantly reduced.

  In order to prevent the occurrence of such inconvenience, in the pachinko machine described in Patent Document 1, a decorative body as an effect member is attached to the swinging side end of the movable arm supported so as to be swingable. A permanent magnet is provided at the end of the movable arm on the swing center side, and when the decorative body is returned to the standby position arranged around the symbol display device, the permanent magnet is fixedly opposed to the permanent magnet. The movable arm is stopped and held by the magnetic force acting between the plates to prevent rattling when the decorative body is stopped.

JP 2003-190401 A

  By the way, as described in Patent Document 1, in a pachinko machine that uses a permanent magnet to suppress rattling when the decorative body is stopped, the permanent magnet is placed in the vicinity of the symbol display device due to the attachment position of the suction plate. It is necessary to place a magnet. At this time, if the symbol display device is a liquid crystal display device, the magnetic force of the permanent magnet adversely affects the image quality of the liquid crystal display device.

  An object of the present invention is to make it possible to smoothly stop and hold a stage member that produces a jackpot sign without being rattled at a constant posture, and when the symbol display device is a liquid crystal display device. However, the image quality of the liquid crystal display device should not be adversely affected.

  In order to solve the above-described problems, in the present invention, a game board having a symbol display device at a central portion, and a pair of left and right disposed at the upper front side of the symbol display device and swingable around an outer end portion. Symmetrically arranged arms and left and right ends are slidably connected to the inner ends of the pair of arms, and the standby position is arranged on the upper front side of the symbol display device by the synchronized reverse swing of the pair of arms The effect member that is moved down from the position, the swing drive device that swings the pair of arms synchronously, and the effect member that is stretched over the space between the effect member and the pair of arms in the left and right directions equally. The structure which consists of an elastic member which energizes was adopted.

  In a pachinko machine with the above configuration, a part of the special symbol is stopped and displayed on the display screen of the symbol display device, or it reaches a reach, or a special reach such as when the probability of a big hit becomes a very high reach. When the gaming state occurs, the swing drive device operates to swing each of the pair of arms downward in synchronization. Due to the downward swing of the pair of arms, the effect member descends from the standby position arranged above the symbol display device and stops at the lower limit position (effect position).

  Further, when the symbol is displayed on the display screen of the symbol display device, the swing driving device is actuated to swing each of the pair of arms synchronously upward. By the swinging of the pair of arms, the effect member rises from the effect position and returns to the standby position.

  Here, since the effect member is uniformly urged in both the left and right directions by the elastic member, the effect member moves downward while maintaining a constant posture without rattling and stops smoothly at the effect position or moves upward. To stop at the standby position.

  The elastic member that keeps the posture of the effect member constant may be composed of two coil springs, or may be composed of one coil spring.

  When the elastic member is composed of two coil springs, one end is connected to the center between the left and right ends of the effect member in a state in which each coil spring is extended, and the other end is the inner end of each of the pair of arms. Connect to On the other hand, when the elastic member is composed of a single coil spring, the longitudinal center of the coil spring is connected to the center between both ends of the effect member, and the coil spring is extended to connect each end to a pair of arms. Are connected to the respective inner end portions, and an equal tensile force in both the left and right directions is applied to the effect member.

  When one coil spring is employed as the elastic member, the number of parts can be reduced and the assembly process can be simplified as compared with the case where two coil springs are employed as the elastic member.

  In the pachinko machine according to the present invention, as a swing drive device, a rotary plate that is rotated by a set angle using an actuator as a drive source, one end is connected to the outer periphery of the rotary plate, and the other end is a swing of the arm. By adopting a crank arm connected to the end on the center side, the length from the swing center of the arm to the connection position of the crank arm and the length from the swing center of the arm to the connection position of the effect member Since the ratio of the height (lever ratio) can be increased, the stroke of the effect member can be increased by the rotating plate having a small outer diameter, and the effect can be further enhanced.

  In this case, if a stepping motor is used as an actuator and a gear reduction mechanism is provided that transmits the rotation of the stepping motor to the rotating plate, a heavy effect member can be moved up and down by a small stepping motor having a small capacity. .

  As described above, in the present invention, the effect member moved up and down by the swing of the pair of left and right symmetrically arranged arms is equally urged in the left and right directions by the elastic member spanned between the pair of arms. As a result, the production member can always be held in a constant posture without rattling, and can be smoothly stopped and held.

  In addition, since the posture of the effect member is held constant by the elastic member, even if the symbol display device is a liquid crystal display device, the image quality of the liquid crystal display device is not adversely affected, Study can be made unnecessary.

Front view of game board of pachinko machine according to the present invention The front view which expands and shows the accessory mechanism part of FIG. Plan view of FIG. Front view of the accessory mechanism with the front and rear decorations removed Front view showing the production state of the production member Rear view of FIG. Rear view showing another example of a coil spring that holds the orientation of the effect member constant

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a game board 10 of a pachinko machine according to the present invention. The game board 10 has a game board 11, a guide rail 12 is attached to the surface of the game board 11, and the inside of the guide rail 12 is a game area 13.

  As shown in FIGS. 2 and 3, a punch hole 14 penetrating in the front-rear direction is formed in the center of the game area 13, and a symbol display device 15 is provided in the punch hole 14. In the game area 13, as shown in FIG. 1, game parts such as a large number of nails 16 and windmills 17, a start winning device 18 and a special variable winning device 19 for distributing and adjusting the falling direction of the game ball. Is provided.

Here, a liquid crystal display device is employed as the symbol display device 15. The liquid crystal display device 15 displays a special symbol in a variable manner when a game ball launched into the game area 13 wins the start winning device 18. When a plurality of special symbols are stopped and displayed in a specific stop display mode, the jackpot gaming state is established, and the door 19a that has closed the entrance of the special variable winning device 19 opens and closes according to predetermined operating conditions. ing.

  On the upper side of the liquid crystal display device 15, there is provided an accessory mechanism 20 that produces a sign of a big hit when a specific gaming state such as super reach occurs.

  As shown in FIGS. 2 to 5, the accessory mechanism 20 includes a base plate 21 that is elongated in the left-right direction and is fitted in a space formed on the upper side of the liquid crystal display device 15 and screwed to the game board 11. A pair of gear cases 23 are provided at the left and right ends of the front side of the base plate 21.

  In addition, on the front side of the base plate 21, a plate-like rear decorative body 24 and a front decorative body 25 are provided with a space between the rear decorative body 24.

  The rear decorative body 24 is shorter than the length between the left and right ends of the base plate 21, is arranged at the center of the base plate 21, and is screwed to the base plate 21. On the other hand, the length of the front decorative body 25 between the left and right ends is substantially the same as that of the base plate 21, and is attached to the gear case 23 by screwing.

  The front decorative body 25 has an arch shape, and the rear decorative body 24 can be visually recognized from the cut-out portion 26 on the lower side.

  Inside each of the gear cases 23 provided on the left and right ends of the base plate 21, fulcrum shafts 27, 27 are provided, and the fulcrum shafts 27, 27 respectively support a pair of symmetrically arranged arms 28, 28. Ends are rotatably supported, and each of the arms 28 can swing around the fulcrum shaft 27.

  A pin 29 projects from each of the inner ends of the pair of arms 28, 28. Each pin 29 is slidably fitted in a pair of long holes 31 formed in the left and right end portions of the effect member 30 in the left-right direction, and the left and right end portions of the effect member 30 are slid by the pair of pins 29 and 29. It is supported freely.

  It should be noted that pins are provided on both ends of the rear surface of the effect member 30, and the pins are slidably fitted into the long holes formed in the respective arms 28, so that the effects are produced at the inner ends of the pair of arms 28 and 28. The left and right ends of the member 30 may be slidably supported.

  The effect member 30 has an external shape that can be accommodated in the cutout portion 26 of the front decorative body 25, and a position in which the effect member 30 is accommodated in the cutout portion 26 is a standby position. The standby position is on the upper front side of the liquid crystal display device 15, and at the standby position, the effect member 30 and the front decorative body 25 form a single ornament.

  When the effect member 30 is arranged at the standby position, each pin 29 comes into contact with the inner end of the long hole 31, and the arm 28 swings upward by the contact with the inner end of the long hole 31. It is prevented from moving.

  In addition, the effect member 30 is moved down from the standby position by the synchronous reverse swing of the pair of arms 28, 28, and the lowering stop position (effect position) is set in front of the display screen of the liquid crystal display device 15. Yes.

  A spring 32 is stretched between the pair of arms 28, 28 and the gear case 23, and the arm 28 is urged upward by the spring 32.

  The pair of arms 28 and 28 are swung by a swing driving device 40 provided corresponding to each arm 28.

  The swing drive device 40 has a rotatable rotating plate 41 provided in the gear case 23 above the outer end of the arm 28, one end connected to the outer peripheral portion of the rotating plate 41, and the other end connected to the arm. 28, a crank arm 42 connected to the outer end of the motor 28, a stepping motor 43 as an actuator supported by the gear case 23, and a gear reduction mechanism 44 that reduces and transmits the rotation of the stepping motor 43 to the rotary plate 41. The gear reduction mechanism 44 is incorporated in the gear case 23.

  Here, the weight of the arm 28 and the production member 30 acts on the connection position of the rotating plate 41 and the crank arm 42, and the rotating moment is applied to the rotating plate 41 in the arm pulling-up rotation direction or the arm pulling-down rotation direction by the weight. Thus, a vertical line passing through the rotation center of the rotating plate 41 is a boundary line between the load region in the arm pulling rotation direction and the load region in the arm pulling rotation direction.

  That is, in the right rotating plate 41 in FIG. 4, the region on the right side of the vertical line L passing through the rotation center of the rotating plate 41 is the load region in the arm pulling rotation direction, and the left region is the load region in the arm pulling rotation direction. It is said. On the other hand, in the left rotating plate 41 in the figure, the left region of the vertical line L passing through the rotation center of the rotating plate 41 is the load region in the arm pulling rotation direction, and the right region is the load region in the arm pulling direction. Is done.

  When the connecting position between the rotating plate 41 and the crank arm 42 is arranged in the load region in the arm pulling direction at the standby position where the effect member 30 is accommodated in the cut-out portion 26 of the front decorative body 25, the arm 28 and When the effect member 30 is heavy, the rotating plate 41 rotates in the arm pulling direction, and the effect member 30 cannot be stopped and held at the standby position.

  In order to eliminate such inconvenience, the connecting position of the rotating plate 41 and the crank arm 42 is designed to be arranged in the load region in the arm pulling rotation direction in the standby state of the effect member 30. At this time, if the crank arm 42 has a straight shape, the crank arm 42 interferes with the rotating shaft of the rotating plate 41. In order to avoid the interference, the crank arm 42 is arcuate.

  As shown in FIG. 6, a spring connecting piece 33 is provided at the upper center of the back surface of the effect member 30, and one end portions of coil springs 34, 34 as two elastic members are connected to the connecting piece 33, The other end of one coil spring 34 is connected to the inner end of one arm 28, and the other end of the other coil spring 34 is connected to the inner end of the other arm 28.

  Of the two coil springs 34, 34, one coil spring 34 urges the effect member 30 in the left direction, while the other coil spring 34 urges the effect member 30 in the right direction, and the urging force thereof. Are substantially equal, and the posture of the effect member 30 is kept constant.

  The pachinko machine shown in the embodiment has the above-described structure, and FIG. 4 shows a state in which the effect member 30 is disposed in a standby position in which the effect member 30 is accommodated in the cut-out portion 26 of the front decorative body 25. The connection position of the arm 42 is stopped in the load region in the arm pulling rotation direction.

  In the standby state of the effect member 30 as described above, when a part of the special symbol is stopped and displayed on the display screen of the liquid crystal display device 15 to reach, or when it becomes a super reach with a very high probability of winning a big hit, etc. When the specific gaming state occurs, the stepping motors 43 of the swing drive device 40 provided corresponding to the pair of arms 28 rotate in synchronization.

  Since the rotation of the stepping motor 43 is transmitted to each of the rotating plates 41 via the gear reduction mechanism 44, the pair of rotating plates 41 rotate in the direction indicated by the arrows in FIG. The rotation of the rotating plate 41 causes the pair of arms 28 to swing downward in synchronization with the reverse direction, and the effect member 30 descends from the standby position. When the effect member 30 is lowered to the lower limit position (effect position) located on the front side of the liquid crystal display device 15, the stepping motor 43 is stopped and the effect member 30 is held at the effect position. 5 and 6 show a state in which the effect member 30 is lowered to the effect position.

  Further, when several kinds of symbols are displayed on the display screen of the liquid crystal display device 15, the stepping motor 43 rotates in the direction opposite to the above, and the rotation is transmitted to the rotating plate 41 via the gear reduction mechanism 44. Therefore, the rotating plate 41 rotates in the direction indicated by the arrow in FIG. In addition, the pair of arms 28 and 28 swings upward in synchronization with the reverse direction by the rotation of the rotating plate 41, and the effect member 30 rises from the effect position by the swing of the pair of arms 28 and 28. 4 is returned to the standby position.

  Here, since the effect member 30 is equally urged in the left and right directions by the two coil springs 34, the effect member 30 moves downward in a state of maintaining a constant posture without rattling, and smoothly stops at the effect position, Alternatively, it moves up and stops at the standby position.

  In the above description, a part of the special symbol is stopped and displayed on the display screen of the liquid crystal display device 15 to reach, or a specific gaming state such as when it becomes super reach with a very high probability of winning a big hit. Although the effect member 30 is lowered when it occurs, the effect member 30 may be repeatedly raised and lowered while a specific gaming state is occurring.

  In the example shown in FIG. 6, the orientation of the effect member 30 is kept constant using two coil springs 34, but the orientation of the effect member 30 is kept constant by one coil spring. Good. In this case, as shown in FIG. 7, the center in the length direction of the coil spring 34 is connected to a spring connection piece 33 provided on the back surface of the effect member 30, and the coil spring 34 is extended to connect each end to a pair. The arms 28 and 28 are connected to the inner ends of the arms 28 and 28, respectively.

  In the embodiment, the oscillating drive unit 40 has been described in which the rotation of the stepping motor 43 is transmitted to the rotating plate 41 via the gear reduction mechanism 44. A pinion mechanism may be employed.

  Further, although the stepping motor 43 is shown as an actuator, the actuator is not limited to the stepping motor 43. For example, a rotary solenoid may be used. In adopting the rotary solenoid, the rotary plate 41 may be directly rotated by the rotary solenoid, or the rotation of the rotary solenoid may be transmitted to the rotary plate 41 through a gear mechanism.

DESCRIPTION OF SYMBOLS 10 ... Game board, 15 ... Liquid crystal display device (design display device), 28 ... Arm, 30 ... Production member, 34 ... Coil spring (elastic member), 40 ... Swing Drive device, 41 ... rotating plate, 42 ... crank arm

Claims (2)

  A game board having a symbol display device in the center portion, a pair of left and right symmetrically arranged arms which are arranged on the front upper part of the symbol display device and can swing around an outer end portion, and inner end portions of the pair of arms The left and right ends are slidably connected to each other, and the effect member that is moved down from the standby position disposed on the upper front side of the symbol display device by the synchronized reverse swing of the pair of arms, and the pair of arms A pachinko machine comprising a swing drive device that swings in synchronization, and an elastic member that is stretched between the effect member and a pair of arms and biases the effect member equally in both the left and right directions.   The elastic member is composed of a single coil spring, the center of the coil spring in the longitudinal direction is connected to the center between both ends of the effect member, and both ends of the coil spring are connected to the inner ends of a pair of arms. Item 2. A pachinko machine according to item 1.

Images