JP2006141626A - Ball hitting device of pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the ball hitting device of a pachinko game machine capable of stably hitting game balls by preventing fine movements at the time of return to the standby position of a hitting rod by a simple structure. <P>SOLUTION: The hitting rod 15 provided with a ball hitting part 16 on a tip end, whose inside at least is formed of a magnetic body, is pivoted turnably by a turning shaft 14a. First and second stopper parts 17 and 18 for limiting the turning of the hitting rod at the hitting position and standby position of the hitting rod 15 are disposed. By the back and forth turning operation between the hitting position and standby position of the hitting rod 15, the ball hitting part 16 at the tip end is hit to the game ball and the game ball is hit toward a game area. A permanent magnet 19 is disposed near the standby position so that attraction force acts on the hitting rod 15 when the hitting rod 15 is abutted on the second stopper part 18 at the standby position and stopped. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a ball launcher for a pachinko game machine, and more particularly to a ball launcher capable of stably firing a game ball by preventing fine movement of a launcher when returning to a standby position after a launch operation.

  As a conventional ball launcher of a pachinko gaming machine, with a launcher fixed to the rotary shaft of the rotary solenoid, an elastic kite provided at the tip of the launcher, and a game ball held at the lower end of the launch rail, 2. Description of the Related Art There is known a ball launcher having a structure in which a launcher is pivoted about a pivot axis, an elastic kite at the tip of the launcher hits a game ball, and fires toward a game area.

  In this type of ball launcher, the rotary shaft and firing rod reciprocate within a predetermined angular range to hit the game ball by intermittent driving of the rotary solenoid, and when the firing rod rotates in the striking direction, When the launcher returns to the standby position by the drive of the solenoid, it operates to return to the standby position by the dead weight of the launcher.

  However, a rubber stopper is provided at the standby position of the launcher so that the launcher does not return to the rear from the standby position. When returning to, the launcher hits the rubber stopper and bounces back, so that the launcher tends to be finely moved.

In such a standby position of the launcher, when the rotary solenoid is driven and the launcher starts to turn to the launcher side in a state where the fine movement due to rebounding when hitting the stopper part is started, the launcher starts Even if the position varies and the rotational power of the rotary solenoid is constant, it is not possible to hit the ball with a constant striking force, and the firing direction and flight distance of the game ball tend to be unstable. It was.
JP 2001-58036 A

  Therefore, in order to eliminate the unstable operation of the launch due to the variation in the launch start position caused by the fine movement when returning to the standby position of the launcher, the rotary solenoid is de-energized and the launcher is brought to the standby position. Japanese Laid-Open Patent Publication No. 2004-228867 has conventionally proposed a launching device that applies a suction action of a rotary solenoid to a rotating plate when returning to prevent fine movement when the launching rod returns to a standby position.

  However, the rotary solenoid that applies such a suction action during non-energization to the rotating plate has a problem in that the structure is complicated and the manufacturing cost increases.

  The present invention solves the above-described problems, and with a simple structure, the ball of a pachinko gaming machine that can prevent a slight movement when returning to the standby position of the launcher and can stably launch a game ball. An object is to provide a launcher.

In order to achieve the above object, the ball launcher of the present invention has a launcher having a hitting ball portion at the tip and at least an interior made of a magnetic material, which is pivotally supported by a rotating shaft, and the launch position and standby of the launcher A stopper portion that restricts the rotation of the launching rod at a position is disposed, and by reciprocating rotation between the launching position of the launching rod and the standby position, the hitting ball portion at the tip is hit against the game ball, In the ball launcher of a pachinko machine that launches towards the gaming area,
A permanent magnet is disposed in the vicinity of the standby position so that an attractive force acts on the launcher when the launcher hits the stopper at the standby position and stops.

  Here, the permanent magnet is preferably disposed in a non-contact manner with respect to the launching rod. Further, the launcher is formed in a substantially L shape, and a rotation shaft is pivotally attached to a corner portion thereof, and a rotation range limiting portion is provided on one side on the side of the hitting ball, and the rotation range limitation is provided. When the part is rotated to the standby position, a stopper part that abuts is provided on the base plate, and a permanent magnet is disposed at a position adjacent to the stopper part and facing the tip part of the rotation range limiting part. It can be constituted as follows. Moreover, it is preferable to attach a cover member on the base plate so as to cover at least the permanent magnet.

  In the ball launching device having the above configuration, when the launching handle is operated in a state where the game ball is sent to the hitting position at the lower end of the launching rail by the ball feeding mechanism, for example, the rotating shaft is rotated by driving the electric actuator. The launcher rotates, and the hitting ball portion of the launcher rotates toward the game ball held at the lower end of the launch rail. Then, the hitting ball hits the game ball held at the lower end of the firing rail, and thereby the game ball is launched from the launching rail.

  At this time, the launcher comes into contact with the stopper at the launch position and stops, and the driving torque of the electric actuator disappears. Therefore, the launcher starts to return to the non-driving side by its own weight. When the launcher returns to the original standby position, the launcher receives the attracting action of the permanent magnet and stops by hitting the stopper portion.

  For this reason, even when the launching rod hits a stopper portion having rubber-like elasticity, for example, it will stop immediately without causing any rebound due to the adsorption action, and the firing rod will have very little fine movement. Then, the driving by the electric actuator is performed again, and the launcher starts to rotate in the striking direction, and the hitting ball portion of the launcher rotates toward the game ball held at the lower end of the launch rail.

  In this way, when the launching rod returns to the standby position, there is almost no fine movement due to rebounding, so the rotation starting position of the launching rod always starts from a constant standby position, so if the rotational power of the rotary solenoid is constant Therefore, it is possible to hit a ball with a constant hitting force, and to ensure a stable launch direction and flight distance of the game ball.

  Furthermore, when the launcher starts to rotate from the standby position, the launcher receives the action of attracting the permanent magnet. Therefore, when the rotational torque by the electric actuator is applied to the rotational shaft, the rotational force is the permanent magnet. The launcher is held in the standby position until the suction force is exceeded. Then, when the rotational force of the launcher exceeds the attracting force of the permanent magnet, that is, when the attracting force is overcome, the launcher starts to rotate.

  For this reason, as described in detail below, the launching rod is held by the suction action at the standby position, so that the rotational energy of the electric actuator is further increased even if the drive current of the electric actuator is the same. Therefore, even if the drive current is the same, the hitting speed of the launcher becomes faster, and the game ball can be hit and fired efficiently with less drive current of the electric actuator. In addition, since the launcher is driven to rotate without using the unstable rising slope of the drive current when the electric actuator is on, there is little variation and the game ball is launched at a stable launch speed and flight distance. It becomes possible to do.

  That is, FIG. 9 shows the change in the angle of the firing rod and the change in the driving current of the electric actuator when the permanent magnet is arranged as described above and the launching rod is rotated from the angle θ0 to θh by driving the electric actuator. FIG. 10 shows, as a comparative example, the change in angle of the launching rod and the drive current I of the electrical actuator when the launching rod is rotated from the angle θ0 to θh by an electric actuator without using a permanent magnet. It shows a change.

  As shown in FIG. 10, in the launching rod that does not use a permanent magnet, when the electric actuator is turned on, the launching rod starts rotating after a very short time ts1 (msec), and after the time th1 (msec) Strike a game ball. At this time, the rotational energy applied to the launching rod, that is, the firing speed of the game ball launched by hitting, is proportional to the integrated value (area of the hatched portion in FIG. 10b) of the drive current from time ts1 to time th1. Further, as shown in FIG. 10B, the initial rise of the drive current flowing in the electric actuator has a slope (sag), and the rising slope corresponds to variations in the product of the electric actuator or the power supply voltage. Change easily.

  On the other hand, in the launcher in which the permanent magnet is arranged at the standby position as in the present invention, the start of rotation of the launcher is delayed by the attracting action of the permanent magnet. In other words, as shown in FIG. 9, the angle θ at which the launching rod rotates and the time from time ts2 to time th2 are the same as described above, but the launching rod starts to rotate from time t0 when the electric actuator is turned on. The time ts2 until is longer than in the case of FIG. 10 in which no permanent magnet is used.

  During the time t0 to ts2 extended by the permanent magnet, as shown in FIG. 9B, a rising slope (sag) of the drive current when the electric actuator is on is included, so the launch rod actually rotates. The rotation energy from the start to hitting the game ball, that is, the integral value from the time ts2 to the time th2 (area of the hatched portion in FIG. 9b) is larger than when the permanent magnet in FIG. 10b is not used. The proportional game ball firing speed also increases. For this reason, when a game ball is fired at the same firing speed, the drive current of the electric actuator can be reduced when a permanent magnet is used. Furthermore, it is possible to stabilize the launch angle and the flight distance of the game ball by removing the unstable state of the rising slope portion of the current at start-up, which is likely to occur due to variations in the electric actuator products.

  Further, the launcher is formed in a substantially L shape, and a rotation shaft is pivotally attached to a corner portion thereof, and a rotation range limiting portion is provided on one side on the side of the hit ball portion, and the rotation range limiting portion Is configured so that a stopper portion that abuts is provided on the base plate and a permanent magnet is disposed at a position adjacent to the distal end portion of the rotation range limiting portion adjacent to the stopper portion. In this case, the attracting force of the permanent magnet can be effectively applied to the launcher, and fine movement when the stopper portion is in contact can be prevented well.

  Further, if a cover member that covers the base plate is attached so as to cover at least the permanent magnet, the game ball sent from the game ball feeding mechanism to the ball holding portion of the launching device is sent to an incorrect position. Thus, it is possible to prevent a problem that the game ball is attracted to the permanent magnet and prevents a normal launching operation.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 shows a front view of a launching device 10 of a pachinko machine, FIG. 2 shows a right side view thereof, and FIG. 3 shows an exploded perspective view thereof. The launching device 10 is configured by mounting a launching member 12, a rotary solenoid 14, first and second stopper portions 17, 18 and the like on a base plate 11 formed in a rectangular shape by a metal plate or the like. A shaft hole is formed on the right side of the center of the base plate 11, and the rotary solenoid 14 is fixed to the back surface of the base plate 11 with a fixing screw or the like so as to project the rotating shaft 14a from the shaft hole.

  A synthetic resin launcher member 12 is fixed on the base plate 11 with a fixing screw or the like. The launch port member 12 is formed with a launch passage 12a inclined obliquely upward at substantially the center thereof, and a launch rail 13 is attached to the left side wall portion toward the launch passage 12a.

  In addition, the launch passage 12a of the launch member 12 is inclined toward the introduction port 5 that is provided obliquely downward between the lower end portion of the outer rail 3 on the game board 2 described later and the inner rail 4. It is formed. Further, a ball holding portion 12b is formed at the lower end portion in the launch passage 12a so as to squeeze the passage by protruding the side wall, and one game ball sent from a ball feed mechanism (not shown) is this ball. It is held by the holding unit 12.

  The launch rail 13 that forms the lower side wall portion of the launch passage 12a is formed by bending a contact surface of a metal plate bent in a U shape into a substantially V shape, and the length of the launch rail 13 is the length of the game ball. The length is approximately twice the diameter. This launch rail 13 serves as a guide for launching the game ball, but by launching the game ball toward the inlet at the lower end of the outer rail at a slightly larger launch angle than the tilt angle of the launch rail 13, The contact with the firing rail is reduced, and the length of the firing rail 13 is shortened from the conventional one.

  The launch rod 15 is generally formed in an approximately L shape, and a shaft hole for fitting a rotation shaft is formed at a corner portion thereof. Further, a ball striking portion 16 for hitting a game ball is formed at the tip of the launching rod 15, and one portion on the side opposite to the ball striking portion is in contact with first and second stopper portions 17 and 18, which will be described later. For this purpose, a rotation range limiting portion 15a is formed. As shown in FIGS. 3 to 5, the launcher 15 is insert-molded so as to cover a synthetic resin having high resilience around the metal insert (metal main body) 15 b, and a synthetic resin coating layer 15 c. Is coated and formed on the periphery thereof, and the hitting ball portion 16 at the tip is integrally formed at the time of insert molding.

  As shown in FIG. 4, the metal insert 15 b that is a metal body of the launcher 15 is formed by cutting a steel plate into a substantially L shape, for example, and a shaft hole 15 d is formed in a corner portion of the metal insert 15 b. Is provided with a pin hole 15e for inserting an insert holding pin. The metal insert 15b having such a shape is set in a predetermined insert molding die at the time of manufacturing, and insert molding is performed by injecting a synthetic resin material around it. As the synthetic resin material, it is preferable to use a thermoplastic elastomer having intermediate softness between general rubber and plastic, and having high impact resistance and impact resilience. The use of a polyester elastomer is preferred.

  The firing rod 15 is formed into a shape as shown in FIG. 5 by such insert molding, and a synthetic resin coating layer 15c is coated and formed on the outer periphery of the metal insert 15b so as to cover substantially the whole. A ball striking portion 16 for hitting a game ball is integrally formed on the left end surface of the tip portion of the launching rod 15 together with the coating layer 15c of the range limiting portion 15a. The hitting ball portion 16 is formed of a synthetic resin material having high rebound resilience, and can be simply formed as a protruding portion to give good rebound resilience. Here, the through hole 16a is formed in the lateral direction. Thus, higher impact resilience is generated in the hit ball portion 16.

  In addition, in order to produce the high rebound resilience, the hitting ball portion of the launcher 15 can ensure a high rebound resilience by forming a plurality of grooves on both side surfaces of the hit ball portion in addition to the through holes. Moreover, it can also be set as a recessed part instead of a groove | channel.

  Further, as shown in FIG. 5, the hitting surface of the hitting ball portion 16 is formed in a rectangle wider than the radius of the game ball, and may be elliptical. The radius of the game ball is 5.5 mm, and the lateral width of the striking surface can be 6 mm, for example. In this manner, by forming the striking surface of the hitting ball portion 16 into a rectangle or ellipse wider than the radius of the game ball, even when the positional relationship between the game ball and the hit ball portion 16 is slightly shifted, stable launching is performed. be able to. Therefore, when the launcher 15 rotates with a constant turning force, variations in the launch direction and flight distance of the game ball can be reduced, and a constant hit ball can be performed.

  As described above, the shaft hole is formed in the corner of the L-shaped main body of the launcher 15, and the tip of the rotary shaft 14a of the rotary solenoid 14 is fitted into the shaft hole, and is fastened and fixed by the fixing nut 14b. As shown in FIGS. 3 and 5, the metal surface is exposed around the shaft hole 15d so that the firing rod 15 is firmly fixed by the fixing nut 14b.

  As shown in FIG. 3, the rotary solenoid 14 is fixed to the back surface of the base plate 11 so that the rotation shaft 14a protrudes from a hole formed on the right side of the center of the base plate 11, and is attached to the tip of the rotation shaft 14a. The launcher 15 is fastened and fixed by the fixing nut 14b. At this time, as shown in FIG. 7, the hitting ball portion 16 of the launching rod 15 has a ball holding portion 12b when the firing rod 15 rotates clockwise from approximately 6 o'clock to approximately 8 o'clock in a front view. The game ball is hit and fired in a predetermined firing direction.

  Further, a rotation range limiting portion 15a for limiting the rotation range is formed on one side of the launching rod 15 on the side of the hitting ball portion, and the first stopper portion is opposed to the rotation range limiting portion 15a. 17 and the 2nd stopper part 18 are being fixed on the base board 11 so that contact is possible.

  The first stopper portion 17 is formed of a rubber-like elastic body such as a polymer elastomer, and a base plate at a position where the rotation range limiting portion 15a abuts when the shooting rod 15 is rotated to the shooting side and hits a ball. 11 is fixed. Further, the second stopper portion 18 is formed of a rubber-like elastic body such as a similar polymer elastomer, and when the firing rod 15 returns to the standby position after the ball hitting operation, the second stopper portion 18 is fired at a position where the rotation range limiting portion 15a abuts. It is fixed on the mouth member 12. As shown in FIG. 1 and the like, a stopper mounting portion 12c is formed as a concave portion at a predetermined location on the launch port member 12, and the second stopper portion 18 is fitted to the stopper mounting portion 12c.

  The launching rod 15 operates so that, when rotating, the rotation range limiting portion 15a abuts against the first stopper portion 17 or the second stopper portion 18 at the rotation limit of the standby position and the firing position and stops. The shock at the time of stop is buffered and stopped.

  Further, in the vicinity of the second stopper portion 18 in the launch port member 12, a magnet attachment portion 12d for attaching the permanent magnet 19 is formed in a concave shape, and the magnet attachment portion 12d is finely moved when the launcher 15 is stopped. A permanent magnet 19 having an effect such as prevention is attached. As shown in FIG. 1, the permanent magnet 19 is attached in a form facing the tip of the rotation range limiting portion 15 a of the launching rod 15 stopped at the standby position, and between the launching cage 15 and the permanent magnet 19. A slight gap is provided to prevent the launcher 15 from contacting the permanent magnet 19. As the permanent magnet 19, for example, Nd—Fe—B (rare earth magnet) having a residual magnetic flux density of about 680 to 710 mT (millitesla) is preferably used. Since the rare earth magnet is small and has a sufficiently large residual magnetic flux density, it can be effective in preventing fine movement when the launcher 15 is stopped.

  The launcher 15 is driven in the firing direction (clockwise in FIG. 7) by the rotational drive of the rotary solenoid 14, and after firing, due to its own weight and the magnetic force of the permanent magnet 19 provided on the launcher member 12, FIG. 1 to the position shown in FIG. 1 so as to rotate counterclockwise and return to the standby position. As shown in FIGS. 1 and 2, a transparent cover member 10 a is attached to the front surface of the launching device 10 so as to cover the rotation range of the launching rod 15 and the permanent magnet 19. The cover member 10a prevents the game ball from intruding into a portion other than the ball holding portion 12b by mistake and attracted to the permanent magnet 19 so as not to interfere with the launching operation of the launcher.

  As shown in FIG. 6, the launching device 10 configured in this way is attached to the lower center position of the game board 2 in the front frame 1 of the gaming machine. The game board 2 is detachably attached to the center portion of the front frame 1, and an outer rail 3 and an inner rail 4 are disposed on the game board 2 so as to surround the center game area. In the drawing, obstacle nails, various types of objects, display devices, winning holes, and the like placed on the game board 2 are omitted.

  When the game board 2 is viewed from the front, an introduction port 5 is formed between the lower end portion of the outer rail 3 on the lower left side and the inner rail 4 for introducing the launched game ball. The introduction port 5 is formed to open from the left end portion toward the lower center portion of the game board 2, that is, toward the lower oblique center portion, and the launching device 10 is installed at a substantially central position below the game board 2. Is done.

  The rotary solenoid 14 of the launcher 10 is connected to a launch control circuit (not shown). The launch control circuit detects contact of the player with a launch lever (not shown), detects a rotation amount (rotation angle) when the launch lever rotates, and operates a ball feed mechanism (not shown), The game balls sent from the tray are sent one by one to the ball holding portion 12b of the launching device 10, and the rotary solenoid 14 is rotationally driven with a torque corresponding to the rotation angle of the launch lever to control the launch operation of the game balls. It is configured.

  Next, the operation of the ball launching device having the above configuration will be described. When the player operates the launch lever, a ball feed mechanism (not shown) operates to send game balls one by one to the ball holding portion 12b of the launch device 10, and the rotary solenoid 14 is driven to cause the launch rod 15 to move as shown in FIG. It is rotationally driven clockwise from the standby position toward the launch position in FIG. At this time, by the rotation of the launcher 15, the hitting ball portion 16 at the tip thereof hits the game ball of the ball holding portion 12b, and the game ball passes through the launch passage 12a toward the introduction port 5 at the lower end portion of the outer rail 3. Fired.

  The hitting ball portion 16 is formed of the same synthetic resin integrally with the coating layer 15c. However, since a thermoplastic elastomer (for example, polyester elastomer) having a high resilience is used, the game ball has a good spring-like elasticity. Can be stably fired at a certain flight distance in a certain firing direction.

  Further, during such a launching operation, the launching rod 15 stops with one side of the rotation range restricting portion 15a coming into contact with the first stopper portion 17. The driving current for rotationally driving the rotary solenoid 14 is a pulsed current having a short time width, and is supplied in a pulse shape. As a result, the hitting portion 16 rotates and hits the game ball, and the rotation range. When the limiting portion 15a comes into contact with the first stopper portion 17, the drive pulse current disappears and the rotational torque becomes zero. Therefore, after the striking operation, the launcher 15 rotates counterclockwise in FIG. 7 due to its own weight, and receives a permanent magnet attracting action when returning to the standby position in FIG. The other side of the moving range limiting portion 15a comes into contact with the second stopper portion 18 and stops.

  For this reason, even when the launching rod 15 hits the second stopper portion 18 having rubber-like elasticity, the launching rod 15 stops immediately without being rebounded by the adsorption action, and the firing rod 15 is very little moved. The rotary solenoid 14 is driven again, and the launcher 15 starts to rotate in the striking direction, and the hitting ball portion 16 of the launcher 15 rotates toward the game ball held on the lower end of the launch rail 13. To do.

  In this way, when the launching rod 15 returns to the standby position, there is almost no fine movement due to rebounding. Therefore, the rotation start position of the launching rod 15 always starts from a constant standby position, so the rotational power of the rotary solenoid 14 is constant. If so, it is possible to hit the ball with a constant hitting force, and it is possible to secure a stable launch direction and flight distance of the game ball.

  Furthermore, when the launcher 15 starts to rotate from the standby position, the launcher 15 is attracted by the permanent magnet 19, so that the rotary solenoid 14 is turned on and a rotational torque is generated on the rotational shaft 14a. At that time, the launcher 15 is held at the standby position until the rotational force exceeds the attractive force of the permanent magnet 19. Then, when the rotational force of the launcher 15 exceeds the attracting force of the permanent magnet 19, that is, when the attracting force is overcome, the launcher 15 starts to rotate.

  For this reason, the time from when the rotary solenoid 14 is turned on until the launching rod 15 actually starts to rotate is longer, and within the time from when this is turned on until the launching rod 15 actually starts to rotate. Includes a rising slope (sag) of the drive current of the rotary solenoid 14, and the launching rod 15 is actually rotationally driven from the time when the unstable rising slope of the current is almost finished. For this reason, the rising ramp portion of the unstable current at the time of activation is removed, and the game ball can be launched at a stable launch speed and flight distance.

  Furthermore, as shown in FIG. 9B, the rotational energy applied to the launching rod 15, that is, the firing speed of the game ball launched by hitting, is an integrated value from the drive current time ts2 to the time th2, as shown by the diagonal lines in FIG. 9b. Proportional to the area of the part). When the permanent magnet 19 is arranged at a desired standby position of the launcher 15, a rising slope (sag) of the drive current when the rotary solenoid 14 is on is included between the times t0 and ts2, as shown in FIG. 9B. Therefore, the rotational energy from when the launching rod 15 actually starts to rotate until the game ball is hit, that is, the integrated value from the time ts2 to the time th2 (area of the hatched portion in FIG. 9b) is a permanent magnet. The game ball speed is increased in proportion to the case of using no, and the proportion of the game ball is increased. For this reason, when the game ball is fired at the same firing speed, the drive current of the rotary solenoid 14 can be reduced when the permanent magnet 19 is disposed.

  Thus, since the rotary solenoid 14 is driven with a substantially stable and constant driving current at the time of starting, the firing rod that does not use the permanent magnet that starts the rotation of the firing rod in a state including the rising slope portion of the current is used. Thus, even if the current is the same, the rotational energy can be increased, and when the game ball is launched at the same firing speed, the game ball can be launched with a smaller current. That is, by arranging the permanent magnet 19, even if the drive current of the rotary solenoid 14 is the same, the hitting speed at which the hitting portion 16 of the launcher 15 hits the game ball becomes faster, and the game ball is hit efficiently. Can be fired.

  By driving the rotary solenoid 14 as described above, the firing rod 15 repeats reciprocating rotation within a predetermined angular range, and the hitting ball portion 16 at the tip of the firing rod 15 rotates clockwise and is held by the ball holding portion 12b. By hitting the played game ball, the game ball is successfully launched. Since the hit ball portion 16 is integrally formed of the same thermoplastic elastomer as that of the coating layer 15c, the impact at the time of hitting is satisfactorily reduced by the good high resilience and high impact resistance, and the wear of the hit ball portion 16 is also minimized. Can be suppressed.

  In the above embodiment, the rotary solenoid 14 is used as the electric actuator. However, a motor can be used, and the ball striking portion 16 of the launcher 15 uses a spring portion that uses a coil spring instead of an elastic synthetic resin. Can also be provided.

  Moreover, in the said embodiment, although the permanent magnet 19 was arrange | positioned in the opposition position of the front-end | tip of the rotation range restriction | limiting part 15a in the stand-by position of the launcher 15, it is not limited to the position, For example, a permanent magnet may be incorporated inside the second stopper portion 18 so that when the rotation range limiting portion 15a approaches the standby position or hits the stopper portion 18, an attracting action can be generated.

  Further, in the above-described embodiment, the firing rod 15 is formed by insert-molding the coating layer 15c around the metal insert 15b. However, the firing rod is formed only by the metal main body, and the elastic portion made of a coil spring at the tip portion. Can also be provided.

It is a front view of the launching device which shows one Embodiment of this invention. It is a right view of the launching device. It is a disassembled perspective view of a launcher. It is a front view of the metal insert of a launcher. It is a front view of a launcher. It is a front view of the front frame of a pachinko gaming machine. It is a front view of the launcher at the time of launch operation. 2 is an exploded perspective view of a launch port member 12 and a permanent magnet 19. FIG. (A) is a graph which shows the time change of the rotation angle of a launcher, (b) is a graph which shows the time change of the drive current of an electric actuator. The comparative example which does not use a permanent magnet is shown, (a) is a graph which shows the time change of the rotation angle of a launcher, (b) is a graph which shows the time change of the drive current of an electric actuator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10-Launching device 12-Launch port member 12b-Sphere holding part 13-Launch rail 14-Rotary solenoid 15-Ladle 15a-Rotation range restriction part 16-Hit ball part 17-First stopper part 18-Second stopper part 19 -Permanent magnet

Claims (4)

A launching rod having a hitting ball portion at the tip and at least an interior made of a magnetic material is pivotally supported by a rotation shaft, and a stopper portion is provided for restricting the rotation of the launching rod at the firing position and the standby position of the firing rod. In a ball launcher of a pachinko gaming machine that hits the game ball at the tip by reciprocating rotation between the launch position and the standby position of the launcher and launches the game ball toward the game area,
A ball launcher of a pachinko machine characterized in that a permanent magnet is disposed in the vicinity of the standby position so that an attractive force acts on the launcher when the launcher hits the stopper at the standby position. apparatus.   The ball launcher for a pachinko gaming machine according to claim 1, wherein the permanent magnet is disposed in a non-contact manner with respect to the launcher.   The launching rod is formed in a substantially L shape, and a rotation shaft is pivotally attached to a corner portion thereof, and a rotation range limiting portion is provided on one side of the hit ball portion, and the rotation range limiting portion is A stopper portion that abuts on the base plate when rotated to the standby position is provided on the base plate, and a permanent magnet is disposed adjacent to the stopper portion and facing the tip of the rotation range limiting portion. A ball launcher for a pachinko machine according to 1.   4. A ball launcher for a pachinko gaming machine according to claim 3, wherein a cover member is mounted on the base plate so as to cover at least the permanent magnet.

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