| 摘要 |
A both-sides playing optical disc player includes a pickup carriage having a sliding motor, a power transfer gear for the motor, a pair of guide rollers, and a pickup carriage at a reproducing position. A pair of upper and lower rack elements are provided at a reproducing position, for moving the pickup carriage. A turning unit having a guide formed of a guide roller and rotating the pickup carriage along a nearest semicircle near an outer circle of the disc is provided. The turning unit has a turning plate rotated together with the pickup carriage using an additional turning motor. The sliding motor and the power transfer gear for moving the pickup carriage may perform turning by providing a U shaped rack element for the movement within the reproducing position. In case of turning with the turning plate, a cam curve portion having a variable curve portion is formed in the turning plate, and is followed by a rack element supporting element thereby enabling slope compensation according to a deflection of the disc.
|
