| 摘要 |
PROBLEM TO BE SOLVED: To secure the reliability of motion of a movable Yakumono (accessory) in a pinball game machine by a simple constitution. SOLUTION: Rise/fall of the movable Yakumono 140 is controlled by lifting mechanisms such as a hoisting gear 172, a driving gear 178, and a wire 180. A reference detection sensor 184 is a sensor for detecting that the movable Yakumono 140 reaches a reference position. The number of steps of a stepping motor necessary for raising the movable Yakumono 140 from a fall completion position to the reference position is measured in advance as a reference raising drive amount. The movable Yakumono 140 is raised to the reference position by driving the stepping motor by the reference raising drive amount when the movable Yakumono 140 is raised while a game is executed. COPYRIGHT: (C)2013,JPO&INPIT |
