| 摘要 |
PROBLEM TO BE SOLVED: To provide a pachinko machine that prevents an unfair play by obstructing an unfair material which is inserted from an outside. SOLUTION: On a pachinko machine which installs a glass framework and an upper receiver set 4 so as to open and close freely at a front framework which has at least a front framework frame, the upper receiver set is constituted of an upper receiver body 43 and a front cover 44 which are made of a synthetic resin and an installing board for an upper receiver set 42 and so forth which are installed at a back surface of the upper receiver body 43. When the glass framework and the upper receiver set 4 is closed, an unfair preventive convex groove which is formed by a cooperative movement of the upper receiver body 43 and the installing board for the upper receiver set 42 and an unfair preventive piece which is installed at the glass framework are engaged, therefore an invasion of an unfair material which is inserted in the pachinko machine. |
