| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an enclosed ball type game machine allowing a player to secure fairness of a chance of winning by a used game ball, in any enclosed ball type game machine. <P>SOLUTION: A ball information control MPU includes: a door frame opening-determining means (S524) determining whether or not door frame opening which means a state that a door frame 3 is opened with respect to a body frame 2 is performed based on a detection signal of a door frame opening switch 131 on condition that there is not a memory of a handle touch in time of power supply (S522); and a cleaning ball-circulation control means (S527) performing a cleaning ball-circulation control to shoot all enclosed balls at least once and to circulate the enclosed balls through a circulation route by automatically operating a ball shooting device and a circulation ball-feeding member without an operation to a ball shooting handle. The cleaning ball-dirculation control means executes the cleaning ball-circulation control on condition that the door frame opening-determining means has determined that the door frame opening is not performed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
