| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce troublesomeness in a work to exchange a polishing member. <P>SOLUTION: When a polishing member 913 for polishing Pachinko game balls circulating in a circulation route is attached to the circulation route, a holding part 918 is attached by a pawl 917 to be elastically held. When a recessed surface 919 being the contact surface of the polishing member 913 to the ball becomes dirty, the polishing member 913 is temporarily removed and, then, attached by allowing a new recessed surface 919 to face the game balls. <P>COPYRIGHT: (C)2013,JPO&INPIT |
