JP4070285B2 - Ball driving device for pachinko machines - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ball hitting device for a pachinko gaming machine, and more particularly to a ball hitting device for a pachinko gaming machine capable of improving hitting accuracy and bearing durability while ensuring a simple configuration including a control system. Relates to the device.
[0002]
[Prior art]
FIG. 10 is a front view showing a configuration of a ball hitting device of a pachinko gaming machine related to the prior art.
This ball striking device 101 has an example in which a hammer arm 103 is attached to a driving shaft 102 that forms a rotor shaft of a motor, and the driving shaft 103 is driven forward and backward by a driving shaft 102 within a predetermined angle range (Japanese Patent Laid-Open No. 9-131431). Therefore, the apparatus can be miniaturized and the cost can be reduced by providing the minimum configuration that can be achieved by omitting the intervening parts of the transmission system while ensuring the minimum ball hitting function.
[0003]
[Problems to be solved by the invention]
However, since the hammer arm 103 is directly driven by the driving shaft 102, the pulsation torque of the motor acts on the hammer arm 103, so that the accuracy of the striking force by the hammer arm 103 is deteriorated. In order to avoid this, complicated torque control is required to smooth and level the pulsation of the driving shaft 102. In addition, since the driving shaft 102 needs to be rotated forward and backward every time the ball is hit, the oil film of the bearing may be cut and the durability may be lowered.
[0004]
An object of the present invention is to provide a ball hitting device for a pachinko gaming machine that can improve the hitting accuracy and the durability of a bearing while ensuring a simple configuration including a control system.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a hammer arm for reciprocating a swing range of a constant angle to hit and fire a pachinko ball, and a pulse-driven motor as a power source for driving the hammer arm are provided. In a ball striking device for a pachinko machine, a driving arm that extends in a radial direction from an end of the rotor shaft of the motor is attached, and an elastic member that can elastically extend and contract between the eccentric position of the driving arm and the hammer arm The hammer arm is configured to reciprocate by connecting and rotating the entire circumference of the driving arm.
[0006]
In this ball striking device, the pulsation torque of the motor that drives the hammer arm is smoothed and leveled by the elastic member by driving the hammer arm by the driving arm and the elastic member, so that the hammer does not require a complicated control system. The impact accuracy of the arm can be improved, the ball striking impact of the hammer arm is not transmitted to the rotor shaft, stable motor operation can be secured, and the hammer arm is driven by the energy accumulated in the elastic member. Therefore, it is possible to reduce the power of the motor's driving output and to arrange the driving arm so that it can rotate all around, so that the hammer arm can be rotated in one direction without rotating the motor's rotor shaft forward and backward. Since it can be driven, the lubricating oil film of the bearing can be maintained stably. Simple control consisting of a process that is possible.
[0007]
When the support shaft of the hammer arm and the rotor shaft of the motor are separated from each other, direct vibration transmission between the hammer arm and the rotor shaft is avoided, so that the impact of the ball hitting the hammer arm is not affected. The stable operation and durability of the motor can be further improved without acting on the rotor shaft.
[0008]
In the case where the hammer arm is rotatably arranged using the rotor shaft of the motor as a support shaft, the number of parts can be reduced by using the rotor shaft as a support shaft, so that the device configuration can be simplified. it can.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a front view showing a first embodiment of the ball striking device of the present invention.
The ball striking device 1 is formed with two stoppers 3 and 4 on a mounting substrate 2, and a hammer arm that hits and fires a pachinko ball 5 by reciprocating a rocking range of a constant angle formed by the two stoppers 3 and 4. 6 and a motor 7 serving as a power source such as a stepping motor capable of rotating the hammer arm 6 by pulse driving.
[0010]
The motor 7 is integrally provided with a driving arm 9 that passes through the rotor shaft 8 from the back side of the mounting substrate 2 and extends in the radial direction from the end of the rotor shaft 8. The eccentric position of the driving arm 9, the hammer arm 6, The hammer arm 6 is configured to be reciprocally oscillated by the rotation of the entire circumference of the driving arm 9 by the elastic member 10 such as a coil spring that can be elastically expanded and contracted.
[0011]
The hammer arm 6 has a ball hitting hammer 11 at the tip and is rotated around the rotor shaft 8. In addition, a cam 12 is formed at the base to drive the ball discharge lever 13 corresponding to the swinging motion. It is possible to configure.
[0012]
The driving arm 9 rotates counterclockwise in the drawing from the reference position P where the hammer arm 6 contacts and positions the standby side stopper 3 via the elastic member 10, and the hammer arm 6 contacts the stopper 4 on the ball striking side. A ball hitting operation is performed until the intermediate position Q is touched, and an overrun operation that rotates in the same direction without reversing to the reference position P is performed. In this overrun operation, the driving force of the motor is not driven by the driving arm 9 in the latter half of the driving arm 9 passing through the opposite position R that is opposite to the hammer arm 6 that contacts the stopper 4 on the ball striking side. Also, the elastic member 10 receives a tensile force, and is positioned in contact with the stopper 3 on the standby side together with the hammer arm 6.
[0013]
FIG. 2 is a view taken in the direction of arrow II in FIG.
The hammer arm 6 is provided with a bearing member 6a at its base, and is rotatably supported by using the rotor shaft 8 of the motor 7 as a support shaft. When the driving arm 9 attached to the end of the rotor shaft 8 rotates all around. Then, it is driven to swing through the elastic member 10. In addition, an angle sensor including a position indicating unit 14 that indicates the rotation position by a light shielding body and a detection unit 15 using a photosensor or the like is provided on the opposite side of the rotor shaft 8. By this angle sensor, the driving arm 9 is set at a predetermined reference position P.
[0014]
The ball striking motion of the driving arm 9 accelerates the hammer arm 6 while accumulating energy corresponding to the amount of expansion with the elastic member 10 in accordance with a predetermined speed pattern, and the hammer arm 6 acts as a stopper 4 on the ball striking side. The hammer 11 hits and fires the ball 5 at a position just before the contact. The elastic member 10 can accelerate the hammer arm 6 to a required speed by a small output motor by its energy adjusting action. After the intermediate position Q, the hammer arm 6 is returned to the standby position by an overrun operation to prepare for the next ball hitting.
[0015]
In the ball striking device 1 configured as described above, in the ball striking operation, the elastic member 10 relieves minute fluctuations in the transmission force from the driving arm 9 and the pulsating torque of the motor 7 that drives the hammer arm 6 is elastic. Since smoothing and leveling is performed by the member 10, it is possible to improve the hitting accuracy of the hammer arm 6 without requiring a complicated control system, and the rotor shaft 8 and the hammer arm 6 have a separate structure. The ball striking impact of the arm 6 is not transmitted to the rotor shaft 8 and the motor 7 can ensure stable operation including the bearing.
[0016]
Further, since the hammer arm 6 can be driven by the energy accumulated in the elastic member 10, the power output of the motor 7 can be reduced, and the driving arm 9 is disposed so as to be capable of rotating all around. The hammer arm 6 can be driven by one-way rotation without switching the rotation of the rotor shaft 8 of the motor 7 in the forward and reverse directions, so that the lubricating oil film of the bearing can be stably maintained, and the ball hitting stroke and the overrun stroke are included. Simple control is possible.
[0017]
Therefore, the ball hitting device of the pachinko gaming machine according to the present invention can improve the hitting accuracy and the bearing durability while ensuring a simple configuration including the control system. Further, by sharing the rotor shaft as the support shaft of the hammer arm, a dedicated support shaft is not required, and the number of parts can be reduced, so that the device configuration can be simplified.
[0018]
FIG. 3 is a front view showing a second embodiment of the ball striking device of the present invention. In the following description, the same members as those described above are denoted by the same reference numerals, and description thereof is omitted.
The ball striking device 1 a is an example in which a position indicating unit 14 a is formed at the tip of the driving arm 9 and an angle sensor is configured from the detection unit 15 provided on the surface side of the mounting substrate 2. This angle sensor can be easily configured by using the driving arm 9 and can also use a motor 7 having a simple configuration in which one side is sealed and having a good sealing property.
[0019]
FIG. 4 is a front view showing a third embodiment of the ball striking device of the present invention.
The ball striking device 21 is provided with a support shaft 22 of the hammer arm 6 apart from the rotor shaft 8 of the motor 7 and in the vicinity thereof, and the hammer arm 6 is reciprocally swung about the support shaft 22 via the elastic member 10. It is configured by being connected to a driving arm 9 provided at the shaft end of the rotor shaft 8 rotating around the entire circumference.
[0020]
FIG. 5 is a view taken in the direction of arrow V in FIG.
A support shaft 22 is erected in a stud shape on the mounting substrate 2 in the vicinity of the rotor shaft 8 and is separated from the rotor shaft 8 by the dedicated support shaft 22 so that the hammer arm 6 is rotatably supported.
[0021]
In this way, by providing the support shaft 22 of the hammer arm 6 separately from the rotor shaft 8 of the motor 7, direct transmission of ball striking impact between the hammer arm 6 and the rotor shaft 8 can be avoided. 7 stable operation and durability can be improved.
[0022]
FIG. 6 is an operational characteristic diagram of the ball striking stroke of the ball striking device of the present invention.
In the ball striking stroke, the driving arm and the hammer arm waiting at the reference position start the driving arm, the driving arm angle a increases, and the hammer arm angle b continues after this. While the driving arm angle a causes pulsation corresponding to the pole position of the motor, the hammer arm driven through the elastic member is accelerated along a smooth curve, and exceeds the hitting position h1 of the pachinko ball to the stopper position h2. It reaches. The speed of the hammer arm is represented by the slope of the curve. Therefore, the speed of the hammer arm hitting position h1 can be stabilized without being affected by the fine pulsation of the motor.
[0023]
Next, drive control of the ball striking device of the present invention will be described.
FIG. 7 is a rotational operation diagram showing the drive control section of the ball striking device of the present invention.
In the driving control of the ball striking device, the motor is driven according to the trigger signal T in accordance with the driving control section composed of each control mode of the ball striking mode PA, the overrun mode PB, and the standby mode PC. Therefore, it is possible to drive and control the ball striking device of the present invention by a drive control unit having a simple configuration including one standby operation and two patterns of control operations. The configuration of the drive control unit will be specifically described below.
[0024]
In the ball hitting 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 indicated by a solid line is increased. Passing the hitting position h1 to the stopper position h2, a position slightly exceeding the intermediate position Q of the driving arm corresponding to the stopper position h2, that is, holding the hammer arm at the stopper position h2 for a while to complete the ball hitting process This is a section up to the upper limit position Q0 to be completed. The overrun mode PB is a section from the upper limit position Q0 to the reference position P through the opposite position R where the hammer arm starts to move backward at a position opposite to the hammer arm. The standby mode PC is a section in which the standby position PC waits as it is at the reference position P until the next trigger signal.
[0025]
The control of the ball hitting mode PA is a section in which variable control is performed according to the player's handle instruction, and according to the required speed pattern and acceleration torque in order to accelerate the hammer arm and ensure a predetermined ball hitting speed. Drive control by a variable pattern is performed by voltage. The overrun mode PB is controlled by driving control with a fixed pattern with a constant speed and low torque that can return to the reference position P by the start of the next ball hitting.
[0026]
FIG. 8 is a functional block diagram of the control unit of the ball striking device of the present invention.
The control unit of the ball striking device is provided in the position sensor circuit 32 that operates the rotor angle sensor 31a of the motor 31, the speed command circuit unit 34 that converts the rotation angle of the handle 33 operated by the player into the hammer hitting speed, and the handle 33. An input signal processing system such as a touch sensor circuit 35 that activates the touch sensor 33a, a rotation control circuit unit 36 that can be configured by simple sequence control using these as inputs, and the rotation control circuit unit 36. A torque control circuit unit 37 that controls torque, a motor drive circuit 38 that drives the motor 31 by drive pulses in accordance with commands from the rotation control circuit unit 36, and the like.
[0027]
FIG. 9 is a functional block diagram of the rotation control circuit unit of FIG.
The rotation control circuit 36 combines a pulse generation circuit 41 and a pulse frequency dividing circuit 42 for motor drive control, three timers 43, 44 and 45 for defining timing, and other input signals, and a speed pattern by logical operation. And a phase counter circuit 46 for processing a control signal according to the above.
[0028]
The timers 43, 44, and 45 respectively define the ball pitch cycle time, the end of the ball hitting stroke in one cycle, and the end of the overrun stroke. The phase counter circuit 46 that performs the switching process according to the timer is simply composed of a standby process, a ball hitting process, and an overrun process. By this phase counter circuit 46, the ball hitting machine can reliably control each process of the standby process, the ball hitting process, and the overrun process.
[0029]
In a conventional forward / reverse reciprocating ball driving machine, as the rotor rotates backward, at least the holding stroke at the upper limit position between the ball driving stroke and the return stroke is required, and a timer for timing management is required. In this regard, the ball striking device of the present invention that does not require the timer can easily configure the control unit, simplify various adjustment operations, and improve reliability. .
[0030]
The ball striking device of the present invention can be positioned by reference excitation using 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. Since it is clear that the ball striking device can be configured more simply without the need for the angle sensor described above, description thereof will be omitted.
[0031]
【The invention's effect】
The ball hitting device of the hitting game machine of the present invention has the following effects.
By driving the hammer arm with the driving arm and the elastic member, the pulsation torque of the motor that drives the hammer arm is smoothed and leveled by the elastic member, improving the hammer arm's impact accuracy without requiring a complicated control system Since the ball striking impact of the hammer arm is not transmitted to the rotor shaft, the stable operation of the motor can be secured, and the hammer arm can be driven by the energy accumulated in the elastic member. Lubrication of the bearing is possible because the motor's driving output can be reduced in power and the driving arm can be rotated all around, so the hammer arm can be driven by one-way rotation without rotating the motor's rotor shaft forward and backward. In addition to being able to maintain the stability of the oil film, it consists of the stroke process and the subsequent overrun process. Simple control is possible.
Therefore, the ball hitting device of the pachinko gaming machine according to the present invention can improve the hitting accuracy and the bearing durability while ensuring a simple configuration including the control system.
[0032]
When the support shaft of the hammer arm and the rotor shaft of the motor are separated from each other, direct vibration transmission between the hammer arm and the rotor shaft is avoided, so that the impact of the ball hitting the hammer arm is not affected. The stable operation and durability of the motor can be further improved without acting on the rotor shaft.
[0033]
In the case where the hammer arm is rotatably arranged using the rotor shaft of the motor as a support shaft, the number of parts can be reduced by using the rotor shaft as a support shaft, so that the device configuration can be simplified. it can.
[Brief description of the drawings]
FIG. 1 is a front view showing a ball striking device according to a first embodiment of the present invention. FIG. 2 is a view taken in the direction of arrow II in FIG. 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 along arrow V in FIG. 4. FIG. 6 is a sphere of the ball striking device of the present invention. FIG. 7 is a rotational 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. Functional block diagram of the control circuit unit FIG. 10 is a front view showing the configuration of a ball hitting device of a pachinko gaming machine related to the prior art.
1, 1a Ball hitting device 3, 4 Stopper 6 Hammer arm 7 Motor 8 Rotor shaft 9 Driving 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 Driving arm angle b Hammer arm Angle PA Ball hitting mode PB Overrun mode PC Standby mode

Claims (3)

In a ball hitting device of a pachinko gaming machine comprising a hammer arm that reciprocates and swings a pachinko ball at a constant angle swing range, and a pulse-driven motor that serves as a power source for driving the hammer arm. A motor arm extending in a radial direction from an end of the rotor shaft of the motor is attached, and an eccentric position of the motor arm and the hammer arm are connected by an elastic member that can be elastically expanded and contracted, and the motor arm A ball hitting device for a pachinko gaming machine, wherein the hammer arm is configured to reciprocate by rotating all around. 2. A ball hitting device for a pachinko gaming machine according to claim 1, wherein the support shaft of the hammer arm and the rotor shaft of the motor are separated from each other. 2. A ball hitting device for a pachinko gaming machine according to claim 1, wherein a hammer arm is rotatably arranged with a rotor shaft of the motor as a support shaft.

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