| 摘要 |
PROBLEM TO BE SOLVED: To continue discharge even when a ball counting sensor becomes detection impossible state by providing a lent ball counting sensor and a bonus ball counting sensor in a pachinko ball passage route in order to detect the pachinko ball just after it is released from a restriction by means of the discharge rotor of a ball discharge device. SOLUTION: A projector 28a and a light receiver 29b are arranged to be adjacent in an end part 56 with a thin light shielding wall 57, the light receiver 28b and the projector 29a are disposed to be adjacent in the other end part 58 of an attachment member 55 with the thin light shielding wall 59, light is emitted to permit an optical axis 60 from the projector 28a to the receiver 28b and the optical axis 61 from the projector 29a to the receiver 29b to be mutually in a parallel and in opposite directions and also the light is made to pass over both ball movement gutters 51a and 51b at the outer side of the discharge rotor 27. Then, the pachinko ball is detected as an electric signal when it interrupts the optical axes 60 and 61 at a moment when the ball flowing down the route is released from the restriction due to the discharge rotor 27. |
