| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance the ball put-out speed while ensuring the pachinko ball detecting precision of a ball detecting sensor provided on the ball put-out device of a pachinko machine. SOLUTION: The ball detecting sensor 24 is formed of an optical sensor arranged so as to nip the ball put-out passage 21 of the ball put-out device 10 by a light emitting element 26 and a light receiving element 27. A pulse light is periodically emitted from the light emitting element 26 to the light receiving element 27, and the receipt of the pulse light is confirmed by the light receiving element 27 synchronously with the period of the pulse light. When the optical path from the light emitting element 26 to the light receiving element 27 is interrupted by a pachinko ball put-out of a sprocket 13, and the pulse light is not received continuously a prescribed number of times or more, a pachinko ball detection signal is outputted. When the ball put-out passage 21 is formed of two lines, the light emitting elements 26 of two pairs of optical sensors are arranged back to back between the two ball put-out passages 21, and the light receiving elements 27 of the respective optical sensors are arranged on the outside of the two ball put-out passages 21, respectively.</p> |
