| 摘要 |
PURPOSE:To prevent double loading, by restraining the evacuating operation of the insertion detecting means which is interlocked with the inserted disc to detect insertion of the disc and is evacuated from the disc carrying path. CONSTITUTION:When the record disc guided by guide plate 5 and upper guide 6 is linked with actuator 33, insertion detecting switch S2 is turned on, and down plunger P1 35 is excited. According to this excitation, stage 32 falls, and rise part 32a, actuator 33, and switch S2 are evacuated from the carrying path to form the record carrying path. The driving circuit of down plunger P1 35 including insertion detecting switch S2 is so constituted that it is not operated in music performance. Consequently, even if the second record disc is inserted erroneously in music performance, insertion is stopped by actuator 33, switch S2, and rise part 32a of stage 32 to prevent the damage of the record disc. |
