| 摘要 |
<p>PURPOSE:To stop a motor by operating the second switch, which ejects a cassette and is controlled by a rotary cam body, in parallel with the first switch, which is closed by cassette mounting, to drive the motor and opening the second switch after ejecting the cassette by the rotation of the cam body. CONSTITUTION:First switch 71 is fitted to the lower part of the side face of chassis 1, and collar 72 fixed coaxially with roller 40 where the cassette arm of arm 38 is put turns on switch 71 to drive a motor when the cassette descends to the second position of a play mode. Meanwhile, second switch 90 is connected in parallel to first switch 71 and is provided on switch board 81, and is turned on when arm 91 of switch arm 83 depresses it. The cassette is ejected by a rotary cam which is made into one body together with cam gear 34, and first switch 71 and second switch 90 are turned off and on respectively to rotate the motor by cassette ascending; and after the cassette is ejected by the rotation of cam gear 34, protrusion 75 provided on the cam rotates switch arm 83 in the right direction, and depression of switch 90 is released by arm 91, thus stopping the motor.</p> |
