PURPOSE: To improve the safety for paper money in the middle of conveyance by respectively covering the side of a belt conveying mechanism and a supporting roller confronted with the back of a PACHINKO machine with the wall surface of a transparent resin material for every prescribed number of PACHINKO machines and covering its upside with the ceiling surface of a transparent resin material having an opening/closing lid to be locked.

CONSTITUTION: A wall surface 71 formed by transparent resin is constituted between the belt surface of a belt 23 for paper money conveyance/supporting rollers 24 and 25 and the back of PACHINKO machines 8-10. Besides, a wall surface 72 formed by transparent resin is constituted between the belt surface of a belt 53 for paper money conveyance/supporting rollers 54 and 55 and the back of PACHINKO machines 13-15. Then, the upside of the belt 23 for paper money conveyance and the supporting rollers 24 and 25 and the upside of the belt 53 for paper money conveyance and the supporting rollers 54 and 55 are covered with a ceiling surface 73 of transparent resin material on which an opening/closing lid 74 to be locked is constituted. Thus, the safety for the paper money in the middle of conveyance can be secured.