| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the occurrence of a jamming with the balls by its automatic detection. SOLUTION: The front and rear rails 51 and 52 form a rolling path of the Pachinko balls P and a rail motor 53 is linked to the rear rail 52. The rail motor 53 expands or reduces the clearance between the front and rear rails 51 and 52 based on the circular motion of the rear rail 52 made thereby so that the Pachinko balls P are dropped through the clearance between both the rails. In such an arrangement, when the Pachinko balls P are jammed between the front and rear rails 51 and 52, the current value of the rail motor 53 exceeds the ball jamming judgment value and the rail motor 53 is reversed in response to the output of the reversion command from the main control circuit. Thus, the rear rail 52 comes away from the pachinko balls P, thereby enabling the automatic dropping of the Pachinko balls P through the clearance between the front and rear rails 51 and 52. COPYRIGHT: (C)2006,JPO&NCIPI
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