| 摘要 |
PROBLEM TO BE SOLVED: To provide a premium ball system in which a premium ball will be supplied immediately after a hit ball enters a winning hole, and in which the winning ball is left in a ball reservation device as a proof ball till a premium ball is supplied. SOLUTION: This system has a ball reservation device 11 consisting of plural winning ball sensors S1 and S2, a reserved ball sensor S3, and a ball discharge valve 15 for discharging reserved balls one by one. The control substrate 20 has winning ball counters C1 and C2 which memorize winning balls. When a winning ball is detected by the winning ball sensors, the winning ball is memorized in the winning ball counters, and a premium ball supplying device 24 is operated based on the memory of the winning ball counters. After a prescribed number of premium balls are supplied, reserved balls are detected by the reserved ball sensor, and the ball discharge valve is operated to discharge the reserved balls. The system also has an informing means 6 which is operated when a reserved ball is detected by the reserved ball sensor when the electric power is on. In addition, the premium ball supplying device is operated according to the reserved ball detected by the reserved ball sensor when a restoration switch 23 is on.
|
