| 摘要 |
PROBLEM TO BE SOLVED: To improve a stopping accuracy of a delivery device of pachinko balls. SOLUTION: Ball separation disks 41, 42 are rotated by a stepping motor 50 to deliver pachinko balls in ball passages 31, 32. When the stepping motor 50 is actuated or stopped, pulses having frequencies lower than self-start frequencies are applied to an exciting coil. Thus, while a rotor of the stepping motor rotates through a small angle forwardly and reversely repeatedly, vibration is effected and continued, whereby the rotor can be rotated, overcoming the force of inertia of rotational members. Further, during operation, the stepping motor is driven by low frequency pulses and hence it takes a certain time to stop it. As a result, stopping accuracy of the delivery device of pachinko balls can be improved.
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