| 摘要 |
A drive gear ( 30 ) is rotated by a motor ( 28 ). Drive force from a loading transmission gear ( 36 ), which constantly engages the drive gear ( 30 ), is constantly transmitted to a loading mechanism ( 20 ). In a pick-up moving mechanism ( 24 ), an idler gear ( 33 ), which constantly engages the drive gear ( 30 ), engages a pick-up transmission gear ( 82 ) to transmit drive force. The movement of a first slider ( 101 ) engages and disengages the idler gear ( 33 ) and the pick-up transmission gear ( 82 ). The first slider ( 101 ) is located at a first position when a disc (D) is not loaded, and is located at a second position when the disc (D) is loaded. A loading mechanism ( 20 ) ends a loading operation by moving the first slider ( 101 ) to a second position. The transmission and switching of drive force from a single motor to the loading mechanism ( 20 ) and the pick-up moving mechanism ( 24 ) is ensured.
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