JPH11164942A - Ball shooting device for pachinko game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ball shooting device of Pachinko (Japanese pinball game) machine capable of improving shooting precision and the durability of a bearing while securing simple configuration including a control system. SOLUTION: This ball shooting device 1 for Pachinko game machine is provided with a hammer arm 6 for hitting and shooting a Pachinko ball by a reciprocative operation within the range of fixed angle rocking and a motor 7 for pulse-driving to be a power source in order to drive the hammer arm 6. Then, a driving arm 9 extending in a radius direction from the end part of the rotor shaft 8 of the motor 7 is fitted, connection is executed by an elastically extension/contraction possible elastic member 10 between the eccentric position of the driving arm 9 and the hammer arm 6 and also the hammer arm 6 is reciprocatively operated by the whole circumference rotary movement of the driving arm 9 in configuration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball hitting device for a pachinko game machine, and more particularly to an improvement in hitting accuracy and durability of a bearing while ensuring a simple structure including a control system. The present invention relates to a ball-striking device for a pachinko gaming machine.

[0002]

2. Description of the Related Art FIG. 10 is a front view showing a configuration of a ball hitting device of a prior art pachinko game machine. In this ball striking device 101, an example in which a hammer arm 103 is attached to a driving shaft 102 forming a rotor shaft of a motor, and the driving shaft 103 is driven to rotate forward and reverse within a certain angle range by the driving shaft 102 (Japanese Patent Laid-Open No. Hei 9-131431). ), While minimizing the size of the device and reducing the cost can be achieved by ensuring the minimum ball striking function and employing the minimum configuration that can be achieved by omitting the intervening parts of the transmission system.

[0003]

However, since the hammer arm 103 is directly driven by the driving shaft 102, the pulsating torque of the motor is reduced by the hammer arm 103.
3, the accuracy of the striking force by the hammer arm 103 deteriorates. To avoid this, the driving shaft 102
Complicated torque control is required to smooth and level the pulsation of the motor. In addition, since every time the ball is hit, the driving shaft 102 needs to be rotated in the normal and reverse directions, which may cause the oil film of the bearing to run out and lower the durability.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ball hitting device for a pachinko game machine which can improve the hitting accuracy and the durability of a bearing while ensuring a simple structure including a control system. is there.

[0005]

In order to solve the above-mentioned problems, a hammer arm for hitting and firing a pachinko ball by reciprocating in a swing range of a fixed angle and a power source for driving the hammer arm are provided. In a ball driving apparatus for a pachinko gaming machine including a motor driven by pulse driving, a driving arm extending radially from an end of a rotor shaft of the motor is attached, and a distance between an eccentric position of the driving arm and the hammer arm is set. The hammer arm is connected by an elastic member that can be elastically extended and contracted, and the hammer arm is configured to reciprocate by rotating the driving arm all around.

In this ball striking device, since the pulsating torque of the motor driving the hammer arm is smoothed and leveled by the elastic member by driving the hammer arm with the driving arm and the elastic member, a complicated control system is required. The impact accuracy of the hammer arm can be improved without any impact, the ball striking impact of the hammer arm is not transmitted to the rotor shaft, and the stable operation of the motor can be ensured. Since the arm can be driven, the power output of the motor can be reduced, and the motor arm can be rotated around the entire circumference. Since the hammer arm can be driven, the lubricating oil film of the bearing can be maintained stably, and in addition to the ball stroke, Simple control can be composed of a stroke to overrun.

When the support shaft of the hammer arm and the rotor shaft of the motor are separated from each other, direct transmission of vibration between the hammer arm and the rotor shaft is avoided, so that the ball struck by the hammer arm Does not act on the rotor shaft, and the stable operation and durability of the motor can be further improved.

When the hammer arm is rotatably provided with the rotor shaft of the motor as a support shaft, the number of components can be reduced by sharing the rotor shaft as the support shaft, thereby simplifying the device configuration. can do.

[0009]

FIG. 1 shows a first embodiment of a ball striking device according to the present invention.
It is a front view which shows embodiment. The ball striking device 1 has two stoppers 3 and 4 formed on a mounting substrate 2, and reciprocates in a swing range of a fixed angle formed by the two stoppers 3 and 4 to strike and fire a pachinko ball 5. 6 and
A motor 7 serving as a power source such as a stepping motor capable of controlling the rotation of the hammer arm 6 by pulse driving is provided.

The motor 7 penetrates the rotor shaft 8 from the back side of the mounting board 2 and integrally includes a driving arm 9 extending radially from an end of the rotor shaft 8. The eccentric position of the driving arm 9 and the hammer The arm 6 is connected to the arm 6 by an elastic member 10 such as a coil spring that can be elastically expanded and contracted, and
The hammer arm 6 is rotated by the full rotation of the driving arm 9.
Are configured to perform a reciprocating swing operation.

The hammer arm 6 is provided with a hammer 11 for hitting a ball at a tip thereof, and is rotated about a rotor shaft 8. In addition, a cam 12 is formed at a base portion, and a ball release lever corresponding to the swinging operation is provided. 13 is possible.

The driving arm 9 rotates counterclockwise in the drawing from a reference position P at which the hammer arm 6 is brought into contact with the stopper 3 on the standby side via the elastic member 10 so that the hammer arm 6 is turned on the stopper on the ball striking side. The ball hits the ball until the ball passes the intermediate position Q abutting on No. 4, and then performs an overrun operation that rotates in the same direction without reversing to the reference position P.
In this overrun operation, the stopper 4 on the ball striking side
Position R on the opposite side of the hammer arm 6 contacting the
In the latter half portion through which the driving arm 9 passes, the driving arm 9 receives the pulling force by the elastic member 10 and is positioned together with the hammer arm 6 against the stopper 3 on the standby side even when the motor is not excited. You.

FIG. 2 is a view taken along the arrow II of FIG. 1 and a view taken along the arrow B of FIG. The hammer arm 6 is provided with a bearing member 6a at a base thereof, and is rotatably supported by using a rotor shaft 8 of a motor 7 as a support shaft. A driving arm 9 attached to an end of the rotor shaft 8 rotates around the entire circumference. , And is oscillated through the elastic member 10. Further, on the opposite side of the rotor shaft 8, there is provided an angle sensor including a position indicating unit 14 indicating its rotational position by a light shield or the like and a detecting unit 15 by a photo sensor or the like. With this angle sensor, the driving arm 9 is set at a predetermined reference position P.

The ball striking operation of the driving arm 9 accelerates the hammer arm 6 while accumulating energy corresponding to the amount of extension between the elastic member 10 and the elastic member 10 according to a predetermined speed pattern,
The hammer 11 hits and fires the ball 5 immediately before the hammer arm 6 comes into contact with the stopper 4 on the ball hitting side. The elastic member 10 can accelerate the hammer arm 6 to a required speed by a small output motor by the energy adjusting action. After passing the intermediate position Q, the hammer arm 6 returns to the standby position by the overrun operation, and prepares for the next ball hit.

In the ball striking device 1 thus configured, in the above-described ball striking operation, the elastic member 10 alleviates the minute fluctuation of the transmission force from the driving arm 9 and the pulsation of the motor 7 driving the hammer arm 6. Since the torque is smoothed and leveled by the elastic member 10, the hitting accuracy of the hammer arm 6 can be improved without requiring a complicated control system.
Since the rotor shaft 8 and the hammer arm 6 are configured separately, the ball impact of the hammer arm 6 is not transmitted to the rotor shaft 8, and the motor 7 can secure stable operation including the bearing.

Further, since the hammer arm 6 can be driven by the energy stored in the elastic member 10,
The driving power of the motor 7 can be reduced, and
Since the driving arm 9 is rotatable all around, the motor 7
Since the hammer arm 6 can be driven by one-way rotation without switching the rotation of the rotor shaft 8 in the forward and reverse directions, the lubricating oil film of the bearing can be stably maintained, and a simple ball stroke and overrun stroke can be achieved. Control becomes possible.

Therefore, the ball hitting device for a pachinko gaming machine according to the present invention has a simple structure including a control system,
It is possible to improve the impact accuracy and the durability of the bearing. Also, by sharing the rotor shaft as the support shaft of the hammer arm, there is no need for a dedicated support shaft,
Since the number of parts can be reduced, the configuration of the apparatus can be simplified.

FIG. 3 is a front view showing a second embodiment of the ball striking device of the present invention. In the following, the description of the same members will be omitted by giving the same reference numerals. The ball striking device 1 a is an example in which a position indicator 14 a is formed at the tip of the driving arm 9, and an angle sensor is configured by a detector 15 provided on the front surface side of the mounting board 2. This angle sensor can be simply configured by using the driving arm 9, and a motor 7 having a simple configuration with one side sealed and having good sealability can be used.

FIG. 4 is a front view showing a third embodiment of the ball striking device according to the present invention. The ball striking device 21 is provided with a support shaft 22 of the hammer arm 6 at a distance from the rotor shaft 8 of the motor 7 and in the vicinity thereof, and via the elastic member 10 to reciprocate the hammer arm 6 about the support shaft 22. It is configured by being connected to a driving arm 9 provided at the shaft end of a rotor shaft 8 that rotates all around.

FIG. 5 is a view on arrow V in FIG. Rotor shaft 8
The support shaft 22 is stood upright on the mounting board 2 in the vicinity of the mounting substrate 2, and the hammer arm 6 is rotatably supported by the dedicated support shaft 22 while being separated from the rotor shaft 8.

As described above, by providing the support shaft 22 of the hammer arm 6 separately from the rotor shaft 8 of the motor 7,
Since direct transmission of the impact of the ball striking between the hammer arm 6 and the rotor shaft 8 is avoided, the stable operation and durability of the motor 7 can be improved.

FIG. 6 is an operational characteristic diagram of the ball striking process of the ball striking device of the present invention. In the ball stroke, the prime mover arm and the hammer arm waiting at the reference position activate the prime mover arm, and the prime mover arm angle a increases, followed by the hammer arm angle b. The driving arm angle a generates a pulsation corresponding to the pole position of the motor, while the hammer arm driven via the elastic member is accelerated along a smooth curve and moves beyond the hitting position h1 of the pachinko ball to the stopper position h2. Reach. The speed of the hammer arm is represented by the slope of the curve, and therefore, the speed of the hammer arm striking position h1 can be stabilized without being affected by minute pulsation of the motor.

Next, drive control of the ball striking device of the present invention will be described. FIG. 7 is a rotary operation diagram showing a drive control section of the ball striking device of the present invention. In the drive control of the ball hitting device, the motor is driven by a drive control section composed of each control mode of the ball hitting mode PA, the overrun mode PB, and the standby mode PC while the driving arm orbits in response to the trigger signal T. Therefore, it is possible to drive and control the ball hitting device of the present invention by a drive control unit having a simple configuration including one standby operation and two pattern control operations. Hereinafter, the configuration of the drive control unit will be specifically described.

In the ball striking mode PA, the driving arm is activated from the reference position P in response to the trigger signal T, and the driving arm angle a shown by a solid line increases, followed by the hammer arm angle b shown by a broken line, The hammer arm reaches the stopper position h2 after passing the striking position h1, and slightly exceeds the intermediate position Q of the driving arm corresponding to the stopper position h2, that is, holds the hammer arm at the stopper position h2 for a while and moves the ball. This is a section up to the upper limit position Q0 where the stroke is completed. In the overrun mode PB, the hammer arm further advances from the upper limit position Q0 and passes through the opposite position R where the hammer arm starts the retreat operation at the position on the opposite side of the hammer arm.
Is the section leading to. The standby mode PC is a section in which the standby mode PC waits at the reference position P until the next trigger signal.

The control of the ball striking mode PA is a section in which variable control is performed in accordance with a player's steering wheel instruction. In order to secure a predetermined ball striking speed by accelerating the hammer arm, a necessary speed pattern and acceleration torque are set. Drive control by the variable pattern is performed by the voltage corresponding to the above. Overrun mode P
In the control of B, drive control is performed by a fixed pattern with a constant speed and a low torque that can return to the reference position P by the start of the next ball hit.

FIG. 8 is a functional block diagram of the control section of the ball striking device of the present invention. The control unit of the ball striking device includes a motor 31
Position sensor circuit 32 for operating the rotor angle sensor 31a, a speed command circuit unit 34 for converting the rotation angle of the handle 33 operated by the player into a hammer hitting speed, the handle 33
, An input signal processing system such as a touch sensor circuit 35 for operating the touch sensor 33a provided therein, a rotation control circuit unit 36 which can be configured by simple sequence control using these as inputs, and a motor provided by the rotation control circuit unit 36. The motor 31 includes a torque control circuit 37 for controlling the torque of the motor 31, a motor drive circuit 38 for driving the motor 31 by a drive pulse in accordance with a command from the rotation control circuit 36, and the like.

FIG. 9 is a functional block diagram of the rotation control circuit of FIG. The rotation control circuit unit 36 performs a speed calculation by a logical operation using a pulse generation circuit 41 and a pulse division circuit 42 for controlling the driving of the motor, three timers 43, 44, and 45 for defining timing, and other input signals. Counter circuit 46 for processing a control signal according to
And so on.

The timers 43, 44, and 45 respectively specify the cycle pitch time of the ball hitting, the end of the ball hitting stroke in one cycle, and the end of the overrunning stroke. The phase counter circuit 46 that performs the switching process according to the timer is simply constituted by a standby process, a ball striking process, and an overrun process. By the phase counter circuit 46, the ball striking machine reliably controls each of the standby process, the ball striking process, and the overrun process.

In a conventional forward / reverse reciprocating ball hitting machine, at least a holding stroke at an upper limit position between a ball hitting stroke and a return stroke is required with the reverse rotation of the rotor, and a timer for timing management is required. Therefore, in this regard, the ball hitting device of the present invention that does not require the timer can easily configure the control unit, and various adjustment operations are simplified and the reliability is improved. It will be.

The ball striking device of the present invention utilizes the fact that the hammer arm and the driving arm return to the vicinity of the reference position P by the contraction force of the elastic member in the overrun mode, and performs positioning by reference excitation. Since it is clear that the ball hitting device can be configured more simply without the need for the angle sensor described above, the description thereof is omitted.

[0031]

The ball hitting device of the hit ball game machine according to the present invention has the following effects. By driving the hammer arm by the driving arm and the elastic member, the pulsating torque of the motor that drives the hammer arm is smoothed and leveled by the elastic member, so that the hammer arm can be hit without any complicated control system. It is possible to secure the stable operation of the motor without transmitting the ball impact of the hammer arm to the rotor shaft, and to drive the hammer arm by the energy accumulated in the elastic member. Since the power output of the motor can be reduced and the driving arm is arranged to be able to rotate all around,
Since the hammer arm can be driven by unidirectional rotation without rotating the motor rotor shaft forward and backward, the lubricating oil film of the bearing can be maintained stably, and a simple stroke consisting of a ball striking stroke and a subsequent overrunning stroke Control becomes possible. Therefore, the ball hitting device of the pachinko gaming machine of the present invention can improve the hitting accuracy and the durability of the bearing while securing a simple configuration including the control system.

If the support shaft of the hammer arm and the rotor shaft of the motor are separated from each other, direct transmission of vibration between the hammer arm and the rotor shaft is avoided, so that the ball struck by the hammer arm Does not act on the rotor shaft, and the stable operation and durability of the motor can be further improved.

When the hammer arm is rotatably provided with the rotor shaft of the motor as a support shaft, the number of parts can be reduced by sharing the rotor shaft as the support shaft, thereby simplifying the device configuration. can do.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a ball striking device of the present invention.

FIG. 2 is a view taken in the direction of the arrow II in FIG.

FIG. 3 is a front view showing a second embodiment of the ball striking device of the present invention.

FIG. 4 is a front view showing a third embodiment of the ball striking device of the present invention.

FIG. 5 is a view taken in the direction of arrow V in FIG. 4;

FIG. 6 is an operational characteristic diagram of a ball striking stroke of the ball striking device of the present invention.

FIG. 7 is a rotary operation diagram showing a drive control section of the ball striking device of the present invention.

FIG. 8 is a functional block diagram of a control unit of the ball striking device of the present invention.

FIG. 9 is a functional block diagram of the rotation control circuit unit of FIG. 8;

FIG. 10 is a front view showing the configuration of a ball hitting device of a pachinko gaming machine according to the prior art.

[Explanation of symbols]

 Reference Signs List 1, 1a Ball hitting device 3, 4 Stopper 6 Hammer arm 7 Motor 8 Rotor shaft 9 Drive arm 10 Elastic member 21 Ball hitting device 22 Support shaft P Reference position Q Intermediate position Q0 Upper limit position R Opposite position a Drive arm angle b Hammer arm Angle PA Ball hitting mode PB Overrun mode PC Standby mode

Claims (3)

[Claims] 1. A pachinko game machine comprising a hammer arm for reciprocating in a swing range of a fixed angle to hit and fire a pachinko ball, and a pulse-driven motor serving as a power source for driving the hammer arm. In the ball striking device, a driving arm extending radially from the end of the rotor shaft of the motor is attached, and the eccentric position of the driving arm and the hammer arm are connected by an elastic member that can be elastically expanded and contracted, A ball hitting device for a pachinko game machine, wherein the hammer arm is reciprocated by a full rotation of the driving arm. 2. The ball hitting device of a pachinko game machine according to claim 1, wherein a support shaft of the hammer arm and a rotor shaft of the motor are separated from each other. 3. The ball hitting device of a pachinko game machine according to claim 1, wherein a hammer arm is rotatably disposed with a rotor shaft of said motor as a support shaft.